HomeMy WebLinkAbout1977-08-30 ResolutionRESOLUTION NO. 77-339
RESOLUTION APPROVING CLASS C
LIQUOR CONTROL LICENSE APPLTMTM
BE IT RESOLVED BY THE CITY COUNCIL OF IOWA CITY, IOWA,
that a Class C Liquor Control'License application
is hereby approv— T -For the following named person or
persons at the following described location:
Highlander, Inc. dba/The Highlander Inn & Supper Club
Route 2,
Said approval shall be subject to any conditions ror re-
strictions hereafter imposed by ordinance or State law.
The City Clerk shall cause a recommendation for approval
to he endorsed upon the application and forward the same
together with the license fee, certificate of financial
responsibility, surety bond, sketch of the premises and all
other information or documents required to the Iowa Beer
and Liquor Control Department.
It was moved by Foster and seconded by Ferret
that the Resolution as rea–
T'Be adopted, and uponroI ca
there were:
AYES: NAYS: ABSENT:
`.' Balmer x
deProsse x _
Foster x
Neuhauser x _
Perret x
Selzer x
Vevera x _
Passed and approved this 30th day of August 19 77
3535' �
v
0
RESOLUTION NO. 77-340
AL OF CLASS C
BE IT RESOLVED BY THE CITY COUNCIL OF IOWA CITY, IOWA, that
a Class C Liquor Sunday Sales Permit application is hereby
approvedori' r e -following named person or persons at the
following described location:
Highlander, Inc. dba/The Highlander Inn & Supper Club,
Route 2
Said approval shall be subject to any conditions or restrictions
hereafter imposed by ordinance of state law.
The City Clerk shall cause a recommendation for approval to
be endorsed upon the application and forward the same together
with the license fee, bond, and all other information or docu-
ments required to the Iowa Beer and Liquor Control Department.
It was moved by Foster and seconded by Perret
that the Resolution as read e n op e , and upon roll ca ere
were:
AYES: NAYS: ABSENT:
Balmer x
deProsse x
Foster x
Neuhauser x
Perret x
Selzer x
Vevera x
Passed this 30th day of August , 19 77
3535 �
1L3 •
7
F_IL
RESOLUTION N0. 77-341
RESOLUTION APPROVING CLASS C
LIQUOR CONTROL LICENSE APPLiMTM
BE IT RESOLVED BY THE CITY COUNCIL OF IOWA CITY, IOWA,
that a Class C Liquor Control License application
is hereby app--M—For the following named person or
persons at the following described location:
I.C.B.B., Ltd. dba/The Brown Bottle, 114 South Clinton
Said approval shall be subject to any conditions 'or re-
strictions hereafter imposed by ordinance or State law.
The City Clerk shall cause a recommendation for approval
to he endorsed upon the application and forward the same
together with the license fee, certificate of financial
responsibility, surety bond, sketch of the premises and all
other information or documents required to the Iowa Beer
and Liquor Control Department.
It was moved by Foster and seconded by Perret
that the Resolution as ramie adopted, and upon rZ'icalT
there were:
Balmer
deProsse
Foster
Neuhauser
Perret
Selzer
Vevera
AYES: NAYS: ABSENT:
x
x
x
x
x
Passed and approved this 30th day of August 19 77
RESOLUTION NO. 77-342
OF CLASS C Liquor
BE IT RESOLVED BY THE CITY COUNCIL OF IOWA CITY, IOWA, that
a ClassSunday Sales Permit application is hereby
approved forllowing named person or persons at the
following described location:
I.C.B.B., Ltd. dba/The Brown Bottle, 114 South Clinton
Said approval shall be subject to any conditions or restrictions
hereafter imposed by ordinance of state law.
The City Clerk shall cause a recommendation for approval to
be endorsed upon the application and forward the same together
with the license fee, bond, and all other information or docu-
ments required to the Iowa Beer and Liquor Control Department.
It was moved by Foster and seconded by Perret
that the Resolution as read be a op e , and upon roll ca ere
were:
AYES: NAYS: ABSENT:
Balmer x
deProsse x
Foster x
Neuhauser x
Perret x
Selzer x
Vevera x
Passed this 30th day of August , 19 77
••
RESOLUTION NO. 77-343
RESOLUTION TO REFUND BEER PERMIT
WHEREAS, Silver Ball, Ltd. at 529 South Gilbert
has surrendered beer permit No. 1414 , expiring 2/10/78
and requests a refund on the unused portion thereof, now
therefore,
BE IT RESOLVED BY THE CITY COUNCIL OF IOWA CITY, IOWA, that
said beer permit be and the same is hereby cancelled, and
BE IT FURTHER RESOLVED that the Mayor and City Clerk be
and they are hereby authorized and directed to draw a warrant
on the General Fund in the amount of $ 75.00 , payable to
Silver Ball, Ltd. for refund of beer permit No. 1414
It was moved by Foster and seconded by Perret
that the resolution as read be adopted, and upon roll call there
were:
AYES: NAYS: ABSENT:
Balmer X
deProsse X
Foster X
Neuhauser X
Perret X
Selzer X
Vevera X
Passed this 30th day of August , 19 77
�� C `� • RESOLUTION NO. 77-345 •
RESOLUTION TO REFUND CIGARETTE PERMIT
WHEREAS,
Silver Ball, Ltd. at 529 S. Gilbert St.
in Iowa City, Iowa, has surrendered cigarette permit No.
78-130 expiring
June 30 19 78 , and requests a refund on the unused portion
thereof, now therefore,
BE IT RESOLVED BY THE CITY COUNCIL OF IOWA CITY, IOWA, that cigarette
permit No. 78-130 , issued to Silver Ball Ltd.
be cancelled, and
BE IT FURTHER RESOLVED that the Mayor and City Clerk be and they are hereby
authorized and directed to draw a warrant on the General Fund in the amount of
$ 75.00 __ payable to Silver Ball, Ltd.
' as a refund on cigarette permit 110. 78-130 ,
It was moved by Foster and seconded by
Perret that
the Resolution as read be adopted, and upon roll call there were:
pYE9, v. ARSE
Balmer X _
` X
deProsse
Foster X
Neuhauser X
Perret x
Selzer X
Vevera X
Passed this 30th day of August , 19 77
35,36
L
3G
0
RESOLUTION NO. 77-344
RESOLUTION TO ISSUE CIGARETTE PERMITS
WHEREAS, the following firms and persona have made application, filed the
bond, and paid the mulct tax required by law for the sale of cigarettes and
cigarette papers; therefore,
BE IT RESOLVED BY THE CITY COUNCIL OF IOWA CITY, IOWA, that the applications
be granted and the cigarette bond now on file in the office of the City Clerk be
and the saw are hereby approved, and the City Clerk be and he is hereby directed
to issue a permit to sell cigarette papers and cigarettes to the following named
persons and firma:
Grand Daddy's, 505 E. Burlington
Senor Pablos, 830 First Ave.
Ogden Food Service dba/U. of Iowa Stadium and Fieldhouse
It was moved by Foster and seconded by Perret
that the Resolution as res e a opted, and upon roll call there
were:
AYES: NAYS: ABSENT:
Balmer X
deProsse X
Foster X
Neuhauser X
Perret X
Selzer X
Vevera X
Passed this 30th day of August
19 77
33:36A
RESOLUTION NO. 77-346
RESOLUTION TO ISSUE DANCING PERMIT
BE IT RESOLVED BY THE CITY COUNCIL OF IOWA CITY, IOWA,
that a Dancing Permit as provided by law is hereby granted
to the following named person and at the following described
locations upon his filing an application, having endorsed
thereon the certificates of the proper city officials as to
having complied with all regulations and ordinances, and
having a valid Class "B" Beer Permit, to wit:
Marquette Club, Knights of Columbus Bldg. Assoc.,
328 East Washington
It was moved by Foster and seconded by Perret
that the Resolution as remopted, and upon rol ca 1 t ere
were:
Passed and approved this 30th day of August
197 77.
3537 1
AYES: NAYS: ABSENT:
Balmer
X
deProsse
x
Foster
X
Neuhauser
X
Perret
x
Selzer
X
Vevera
x
Passed and approved this 30th day of August
197 77.
3537 1
0
RESOLUTION NO. 77-347
RESOLUTION TO ISSUE DANCING PERMIT
BE IT RESOLVED BY THE CITY COUNCIL OF IOWA CITY, IOWA,
that a Dancing Permit as provided by law is hereby granted
to the following named person and at the following described
locations upon his filing an application, having endorsed
thereon the certificates of the proper city officials as to
having complied with all regulations and ordinances, and
having a valid Class "B" Beer Permit, to wit:
Highlander, Inc. dba/ The Highlander Inn & Supper Club
Route 2
It was moved by Foster and seconded by Perret
that the Resolution as read e adopted, and upon roll ca'fl there
were:
Balmer
deProsse
Foster
Neuhauser
Perret
Selzer
Vevera
AYES: NAYS: ABSENT:
X
x
x
x
x
x
x
Passed and approved this 30th day of August ,
197 7 .
38.1
Res. #77-348
Page 2
The foregoing resolution was moved by Balmer
and seconded by Foster _ at a duly convened meeting
of the City Council of Iowa City, Iowa, held at the Civic Center,
Iowa City, Iowa on the 30th day of August 1977,
commencing at 7:30 P.M. Upon roll call, the following vote was
taken:
BALMER
dePROSSE
FOSTER
NEUHAUSER
PERRET
SELZER
VEVERA
Aye
x_
Nay _
Absent _
Aye
X
Nay _
Absent _
Aye
x
Nay _
Absent _
Aye
x
Nay
Absent
Aye
x
Nay _
Absent _
Aye
Nay _
Absent x
Aye
X
Nay
Absent
The foregoing is hereby duly certified by Vicki J. Brei, Deputy
City Clerk of Iowa City, as a true and exact copy of a resolution of
the City Council of Iowa City, Iowa, made at a regular meeting held
on the 30th day of August , 1977
Vicki J. Brei, Deputy City Clerk of the
City of Iowa City
Passed and approved this 30th day of August , 1977.
I,6 . L1 M .
ATTEST:
..c I3�+i
City erf
_,}fin, • •
STAFF REPORT
To: Planning and Zoning Commission Prepared by: Doug Boothroy
Item No.: S-7737. llawkeye Heights Date: August IS, 1977
GENERAL INFORMATION
Applicant:
Requested Action:
Purpose:
Location:
Size:
Existing Land Ilse and Zoning:
Surrounding land Use and Zoning
Applicable Regulations:
45 -day limitation:
60 -day limitation:
SPECIAL INFORMATION
Public Utilities:
Public Services:
Transportation:
i
Merrell M. Johnson
505 9th Avenue
Coralville, Iowa 52241
Final plat approval
To establish nine lots for multi-
family residential use
West of Mormon Trek Boulevard, north
of Mark IV apartments and approximately
500 feet south of Melrose Avenue .
3.42 acres
Single family residence and R3
North - church and R3
West - undeveloped and R3
South - multi -family apartment buildings
and R3
East - (across Mormon Trek Boulevard)
undeveloped (approval granted
for multi -family apartment
buildings) and RIB
Subdivision requirements of Chapter
9.50 of the Municipal Code and provisions
of the Storm Water Detention Ordinance
9/12/77
9/27/77
All public utilities are available and
adequate to serve the proposed develop-
ment.
Sanitation service and police and
fire protection are available and
will not be overburdened by the
Proposed development.
Adequate access is available from
Mormon Trek Boulevard
0
-2-
Physical Characteristics:
ANALYSIS
is
The topography is gentle to steep
with a slope range from 0 to 8 percent.
'rho nine lots proposed in the subdivision range in area from 12,000 to 18,000
square feet. Zoned 113, the site has sufficient area for a maximum total of
approximately 36 multi -family dwelling units. A combined recreation, parking
and storm water detention area is proposed in the northwest corner of the site.
'there are no apparent constraints in the subdivision and subsequent development
of the site.
RECOMMENDATIONS
'llie Staff recommends that consideration of the final plat be approved, subject to
the inclusion of a signature block providing for City acceptance of corporate
acknowledgment of agreements in the legal papers.
DEFICIENCIES AND DISCREPANCIES
None
A'f I'ACI IMENTS
Location map
Final plat
Approved by:&W
4�WW�L
Dennis R. Kraft, Director
Dept. of Community Dev.
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eh(FIEzsg X111. CJAMOn
Investments - I$d4i676YvYe - Real Estate
August 25, 1977
City Manager and
City Council of Iowa City
Re: Hawkeye Heights Subdivision
Gentlemen,
P,L'G? 51977 V '
,BRIE STOLFUS
CITY CLERK
DIAL 337-2779
5135 - NINTH AVENUE
CORALVILLE, IOWA 52240
qCZ.. a
This is to request that you give approval of the final
plat of the above subdivision at your August 30, 1977
meeting.
I feel that it should be reasonable to give this early
consideration, because:
All the public improvements have been installed - no
deficiencies.
This is a very simple, uncomplicated development.
We have buyers who are eager to get buildings started
on some of the lots during this construction season.
Sincerely,
Merrell M. Johnson
3S -y7
RESOLUTION NO. 77-349
RESOLUTION AUTHORIZING CITY MANAGER TO EXERCISE OPTION
TO PURCHASE A TRACT OF LAND KNOWN AS THE SHOWERS PROPERTY.
WHEREAS, the City holds an option to purchase a tract of land known as
the Showers property, which tract, since the drafting of the option, has been
surveyed and is now described as follows:
Commencing at the Northwest Corner of the Southwest
Quarter of Section 22, Township 79 North, Range 6 West
of the 5th Principal Meridian; Thence 587051'55"W, 330.06
feet, along the North line of said Southwest Quarter to a
point on the westerly Right -of -Way line of Sand Road (also
known as the Iowa City to Burlington road), which point
is also the Point of Beginning; Thence 530005'42"E 611.13
feet on said westerly Fight -of -Way line; Thence south-
easterly 464.01 feet on a 5697 foot radius curve, concave
southwesterly whose 463.93 foot chord bears S27045'42"E;
Thence S25025'42"E, 266.51 feet on said Right -of -Way
line; Thence 559017'41"W, 201.90 feet; Thence N25020'32"W,
275.31 feet; Thence S62001'16"W, 606.01 feet to the
easterly bank of the Iowa River; Thence northwesterly
along said river bank the following courses; N19038'15"W,
448.14 feet; Thence N16000'O1"W, 620,49 feet; Thence
N16013'06"W, 167.51 feet; Thence N5023104"W, 118,48 feet
to a point where the northerly line of said southwest
quarter crosses said river bank; Thence N87051 15511E,
62.44 feet along said northerly line; Thence N15008'05"W,
266.23 feet; Thence N5051'55"E, 462.72 feet; Thence
N87051'55"E, 158.01 feet to the westerly Right -of -Way
line of said Sand Road; Thence southeasterly 208.09
feet on a 669.60 foot radius curve concave southeasterly
whose 207.26 foot chord bears S21011'31"E; Thence
S30005'42"E, 590.67 feet to the point of Beginning.
Said tract of land containing 26.27 acres
and,
WHEREAS, the Council deems it to be in the public interest to acquire this
property for park and recreational purposes.
NOW, THEREFORE, BE IT RESOLVED BY THE COUNCIL OF THE CITY OF IOWA CITY,
IOWA:
1. That the City Manager is hereby authorized and directed to exercise
the City's option to purchase the Showers property.
2. That the Mayor is authorized to sign, and the City Clerk to attest,
this resolution.
It was moved by deProsse and seconded by
Perret that the Resolution as read be adopted, and
upon roll call there were;
-352-5-3
Res. No.
77-3•
-2- •
AYES:
NAYS: ABSENT:
x
Balmer
x
deProsse
x
Foster
x
Neuhauser
x
Perret
x
Selzer
x
Vevera
Passed and approved this 30th day of August
Mayor
ATTEST: Oe.'�.
ity Clerk�T
RECEDED h APPR09ED
8 TSE LEGAL DEPARTMEUT
518 S -?9--7-1
1977.
N0& OF PROPOSED TAXICAB FARES & CWES
TO ALL RESIDENTS OF THE CITY OF IOWA CITY, IOWA, AND
TO OTHER PERSONS INTERESTED:
The Super Cab, Inc. and the Yellow Checker Cab Co.
Inc. have submitted to the City Council of the City
of Iowa City, Iowa, the following proposed schedule
of fares and charges for taxicab services:
First Mile ---------------------- $1.45
Each Addl. � Mile ----------------- .50
Each Addl. Passenger -------------- .25
Airport (1-3) ------------------$16.00
Cedar Rapids Bus --------------- $21.50
Deliveries ----------------- $1.50--.45
Waiting Time ----------- $9.00 per hour
Per Stop -------------------------- .50
Trips Over 10 Miles ------ .90 per mile
North Liberty ------------ .90 per mile
or $7.00 minimum
Tiffin ------------------- .90 per mile
or $7.00 minimum
Holiday Inn & Oakdale --- $5.00 minimum
A public hearing on this proposal will be held on
August 30, 1977, at 7:30 o'clock P.M. Said meeting
is to be held at the Council Chambers in the Civic
Center in said City. The proposed is submitted
for the City Council's determination of reasonable-
ness.
Any Persons interested may appear at said meeting
of the City Council for the purpose of making ob-
jections to said proposal or any part thereof.
This notice is given by order of the City Council
of the City of Iowa City, Iowa.
8/20/77 /s/ ABBIE STOLFUS, CITY CLERK
3ssS
CAB P.O. BOX 593
--INC-
PHONE 351-0380
•
IOWA CITY. IOWA 52240
I
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(/c �• �/
HOME OF FRIENDLY COURTEOUS SERVICE
0 0
RESOLUTION NO. 77-350
RESOLUTION ACCEPTING PRELIMINARY PLAT'
OF BDI, 2ND ADDITION
'Aze�
BE IT RESOLVED BY THE CITY COUNCIL OF IOWA CITY, IOWA, that the
approval of the preliminary plat for BDI, 2nd Add.
be granted with the following conditions:
1. That requirements for sidewalks be waived.
2. That an agreement be submitted indicating that no development
of Lot 5 shall be permitted until such time as either a
resubdivision or an LSNRD plan has been submitted for Lot 5.
3. That a waiver be granted in the installation of the public
improvements for Lot 5 at this time.
i
It was moved by Balmer and seconded by Foster
that the resolution as read be adopted and upon roll call there were:
AYES: NAYS: ABSENT:
Passed and approved this 30th
i
day of August , 1977.
2�PJJA4 0.
MAYOR YLy
Rccr:ivcd A Apiroval.l
By Tha Lcgpl Depari,u:nt
F-
0
RESOLUTION NO. 77-351
0
RESOLUTION AUTHORIZING EXECUTION OF AGREEMENTS
FOR OVERWIDTH PAVING
WHEREAS, the City of Iowa City, Iowa, has negotiated agreements
with Plum Grove Acres Inc. , copies of said agreements
being attachedto s Resolution and by tFds reference made a part hereof,
and,
WHEREAS, the City Council deems it in the public interest to enter
into said agreements for over -width paving for the following:
Court
Hill -Scott
Boulevard
Part
6 $6,500
Court
Hill -Scott
Boulevard
Part
5 6,000
Court
Hill -Scott
Boulevard
Part
3 4,600
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL:
1. That the Mayor and City Clerk are hereby authorized and directed
to execute the agreements with Plum Grove Acres, Inc.
2. That the City Clerk shall furnish copies of said agreements
to any citizen requesting same.
It was moved by Balmer and seconded by Foster the
Resolution be adopted, 50 upon roll call there wase:
AYES: NAYS: ABSENT:
x BALMER
x dePROSSE
x FOSTER
x NEUHAUSER
x PERRET
_ x SELZER
X VEVERA
Passed and approved this 30th clay of
August , 1977.
—WAjjj C- &JAU
Mayor
ATTEST:J1gee.,D, J, �.
City Clerk
Received & Approved
By The Legal Deparhnenl
•
AGREEMENT
WHEREAS, Plum Grove Acres
is the Developer
of the Court Hill -Scott Boulevard Port 6 subdivision, an Addition to
the City of Iowa City, Iowa, according to the recorded Plat thereof, and
WHEREAS, the City Council and the Planning & Zoning Commission of Iowa City,
Iowa, have required, as a condition of the approval of said subdivision, that the
Developer shall improve Amhurst Street by paving said streets
96 feet wide, back-to-back of the curb, respectively, and
WHEREAS, the City of Iowa City has agreed to reimburse the Developer for the
cost of,said improvement which is in excess of 28 feet in width and said cost has
been dete„oined to be less than Ten Thousand Dollars ($10,000), and that no bids
are required, pursuant to Chapter 384 of the Code of Iowa, and the City of Iowa
City has determined that the cost of 69.85 per square yard, but not to exceed eight
thousand five hundred and no/100 dollars ($ 13,500.00 ) is a fair and
reasonable price for the cost of the additional pavement required.
IT IS THEREFORE AGREED, by and between the parties as follows:
1. That the Developer shall contract for the paving of said street and shall
be responsible for seeing that it is paved, pursuant to the Ordinance, rules,
regulations and specifications of the City of Iowa City, Iowa.
2. That upon completion of the paving improvement and the acceptance of the
work and the street by the City of Iowa City, that the City of Iowa City shall pay
to the Developer, the sum of &g.e5 per sq, aTayard, hrif nnt_±z_oxcard._ '._,.y4t_ �_^� a'^d
ve hundred and no/loo dolaarfull payment for its share of the improvement in excess of the
width of 28 feet.
3. It is understood and agreed by and between the parties that nothing
herein contained, nor shall the entering into of this agreement by the City of
Iowa City be deemed to constitute in any way a waiver of any of the Ordinances,
rules, regulations or specifications of the City of Iowa City, and the Developer
hereby agrees to comply with all Ordinances, rules, regulations and specifications
of the City of Iowa City, and all of the laws of the State of Iowa.
Dated at Iowa City, Iowa, this ;326d, day of August A.D., 1977 .
CITY OF IOWA CITY, IOWA Plum Grove Acres, Inc.
By:QQ��,��,� /ll++`` ��ll By,
ayordPrpsident Bruce R. Giasg w
f.
Attest: _ r `� 8y:
Cit— y Cork Secretary
Rcr_ived & R.pprovod
By The Legal Daparlmanf
AGREEMENT
WHEREAS, Plum Grove ❑eras. Inc. _ i5 the Developer
of the rourt Hill—Scott Boulevard Part 5 subdivision, an Addition to
the City of Iowa City, Iowa, according to the recorded Plat thereof, and
WHEREAS, the City Council and the Planning & Zoning Commission of Iowa City,
Iowa, have required, as a condition of the approval of said subdivision, that the
Developer shall improve washin tan street & Amhurst St. by paving said streets
36 feet wide, back-to-back of the curb, respectively, and
WHEREAS, the City of Iowa City has agreed to reimburse the Developer for the
cost of said improvement which is in excess of 28 feet in width and said cost has
been determined to be less than Ten Thousand Dollars ($10,000), and that no bids
are required, pursuant to Chapter 384 of the Code of Iowa, and the City of Iowa
City has determined that the cost of $9.85 par square yard but not to exceed six
thousand and no/100 dollars ($ 6,000.00 ) is a fair and
reasonable Brice for the cost of the additional pavement required.
IT IS THEREFORE AGREED, by and between the parties as follows:
1. That the Developer shall contract for the paving of said street and shall
be responsible for seeing that it is paved, pursuant to the Ordinance, rules,
regulations and specifications of the City of Iowa City, Iowa.
2. That upon completion of the paving improvement and the acceptance of the
work and the street by the City of Iowa City, that the City of Iowa City shall pay
to the Developer, the sum of $9.85 per square yard, but not to exceed six thousand
and no/100 dollaus full payment for its share of the improvement in excess of the
width of 28 feet..
3. It is understood and agreed by and between the parties that nothing
herein contained, nor shall the entering into of this agreement by the City of
Iowa City be deemed to constitute in any way a waiver of any of the Ordinances,
rules, regulations or specifications of the City of Iowa City, and the Developer
hereby agrees to comply with all Ordinances, rules, regulations and specifications
of the City of Iowa City, and all of the laws of the State of Iowa.
Dated at Iowa City, Iowa, this 30 c/L day Of August A.D., 19 77 .
CIT OF IOWA CITY, IOWA Plum Grovn Acres, Inc. _ l
BY:14—
By: C�'
ayor }'r Bruce R. Glasgow
Attest: 7��1i�%•G�� �t BY:
City ClerK t Secretary
Racrivcd & Approved
By Tho Leggl Dspartm:nt
AGREEMENT
WHEREAS, Plum Grove Acres. Inc, is the Developer
of the Court Hill—Scott Boulevard Part 3 subdivision, an Addition to
the City of Iowa City, Iowa, according to the recorded Plat thereof, and
WHEREAS, the City Council and the Planning & Zoning Commission of Iowa City,
Iowa, have required, as a condition of the approval of said subdivision, that the
Developer shall improve Washington St. & Raven street by paving said streets
36 feet wide, back -to -hack of the curb, respectively, and
WHEREAS, the City of Iowa City has agreed to reimburse the Developer for the
cost of said improvement which is in excess of 28 feet in width and said cost has
been determined to be less than Ten Thousand Dollars ($10,000), and that no bids
are required, pursuant to Chapter 384 of the Code of Iowa, and the City of Iowa
City has determined that the cost of 59.85 per square yard, but not to exceed
four thousand six hundred and no/100 dollars ($ 4,600.00 ) is a fair and
reasonable price for the cost of the additional pavement required.
IT IS THEREFORE AGREED, by and between the parties as follows:
1. That the Developer shall contract for the paving of said street and shall
be responsible for seeing that it is paved, pursuant to the Ordinance, rules,
regulations and specifications of the City of Iowa City, Iowa.
2. That upon completion of the paving improvement and the acceptance of the
work and the street by the City of Iowa City, that the City of Iowa City shall pay
to the Developer, the sum of 49.85 ner SatiFlfe •ard. h,t f fn rvrnn fp r hhnneend six I
indred and no/100 dollar -as full payment for its share of the improvement in excess of the
width of 28 feet..
3. It is understood and agreed by and between.the.parties that nothing
herein contained, nor shall the entering into of this agreement by the City of
Iowa City be deemed to constitute in any way a waiver of any of the Ordinances,
rules, regulations or specifications of the City of Iowa City,,and the Developer
hereby agrees to comply with all Ordinances, rules, regulations and specifications
of the City of Iowa City, and all of the laws of the State of Iowa.
Dated at Iowa City, Iowa, this 301f, day of nunust A.D., 197Z•
CITY OF IOWA CITY, IOWA Plum Grove .8cres, Inc.
By: I uj 4 8y; Il/✓fr-12 ��' ti�:,i (!
mayor Fresipnt Bruce R. Glasgow
Attest: ' &z'r.,`0*-L,&� SY
City clerk —�- Secretary
Received & Approved
By Thi Legal D•p..1,1 ni
3 4>
HESOLUPION NO. 77-352
HESOi,[n'ION ACCEPTING SANITARY SEWER & PAVING
IN ORCHARD COURT SUBDIVISION
WHEREAS, the Engineering Department has certified that the following
improvements have been completed in accordance with plans arra specifications
of the City of Iowa City,
Sanitary sewer for Orchard Court Subdivision
as constructed by Nielsen Construction Company
of Coralville, Iowa. Concrete paving for
Orchard Court Subdivision as constructed by
Metro Pavers, Inc., of Iowa City, Iowa.
Nielson Construction Co.
AND WHEREAS, Maintenance Bonds for & Metro Pavers, Inc. are on
file in the City Clerk's Office,
NOW THEREFORE BE IT RESOLVED by the City Council of Iowa City, Iowa,
that said improvements be accepted by the City of Iowa City.
It was moved by Balmer and seconded by Foster
that the Resolution as read be accepted, and upon roll call there were:
Passed and approved this 30th day of August , 1977. .
*MVAg C. VWAWkW-A-
Mayor
ATTEST:
City C1 a Received & Approv-)a
BY Th` 0< U9 isDaptrimanl
i
AYES: NAYS: ABSENT:
BALMER
x
dePROSSE
x
FOSTER
x
NEUHAUSER
x
PERRET
x
SELZER
x
VEVERA
x
Passed and approved this 30th day of August , 1977. .
*MVAg C. VWAWkW-A-
Mayor
ATTEST:
City C1 a Received & Approv-)a
BY Th` 0< U9 isDaptrimanl
i
•
ENGINEER'S REPORT
August 25, 1977
To the Honorable Mayor and City Council
Iowa City
Iowa
Honorable Mayor and Councilperson:
0
I hereby certify that the construction of the improvements listed
below have been completed in substantial accordance with the plans
and specifications of the Engineering Division of the City of Iowa
City.' The required maintenance bonds are on file in the City Clerk's
office.
Sanitary sewer for Orchard Court Subdivision as constructed
by Nielsen Construction Company of Coralville, Iowa. Concrete
paving for Orchard Court Subdivision as constructed by Metro
Pavers, Inc., of Iowa City, Iowa.
I hereby recommend that the above improvements be accepted by the
City of Iowa City.
Respectfully submitted,
4Euene�T�ietz, P.E.
City Engineer
EAD/jp
i
s
REsOLIlrION N0. 77-353
RESOLUTION AUITKIRIZINO EXECUTION OF CONTRACT
WITH VEENSTRA & KIMM
WHEREAS, the City of Iowa City, Iowa, has negotiated a contract with
Veenstra & Kimm of West Des Moines, IA , a copy of said contract being
attached to this Resolution and by this reference made a part hereof, and
WHEREAS, the City Council deems it in the public interest to enter
into said contract for design services for the River Corridor Trunk
Sewer
NOW IH[EREFORE, BE IT RESOLVED BY THE CITY CMCIL:
1. That the Mayor and City Clerk are hereby authorized and directed
to execute the Agreement with Veenstra & Kinm of West Des Moines. IA _
2. That the City Clerk shall furnish copies of said Agreement to any
citizen requesting same.
It was moved by Foster and seconded by Perret
the Resolution be adopted, and upon roll call there were:
AYES: NAYS: ABSENT:
x BALMER
X— dePROSSE
X_ ' FOSTER
X NEUHAUSER
X_PERRET
x SELZER
x VEVERA
Passed and approved this 30th day of August 1977.
6 JAI
Mayor
ATTEST:
City Cle c
Raceivad & Approved
By Th:? Legal Department
K
0
AGREEMENT
This Agreement, made and entered into this ,�/ /;/ day of ',-.:_,,. /- ,
1977, by and between the City of Iowa City, a municipal corporation, hereinafter
referred to as the City, and Veenstra & Kimn Engineers and Planners of West Des Moines,
Iowa, hereinafter referred to as the Consultant.
NOW, THEREFORE, it is hereby agreed by and between the parties hereto that the
City does retain and employ the said Consultant to act for and represent it in all
matters involved in the terms of this Agreement. Such contract of employment to be
subject to the following terms and conditions and stipulations, to wit:
Consultant shall not commit any of the following employment practices and agrees
to prohibit the following practices in any subcontracts:
To discharge from employment or refuse to hire any individual because
of their race, color, religion, sex, creed, age, disability, marital
status, sexual orientation, or national origin.
To discriminate against any individual in terms, conditions, or privileges
of employment because of their race, color, religion, sex, creed, age,
disability, marital status, sexual orientation, or national origin.
I. SCOPE OF SERVICES
This Agreement provides for the redesign, rerouting and modifications, as necessary,
of the east -west river corridor relief trunk sewers designed by Veenstra & K.imm with
completed plans and specifications dated April 28, 1971. The specific parameters of the
scope of services include the following elements:
A. Upon completion of an interim report for the Sewer System Evaluation
Survey (SSES) currently being conducted by Veenstra & Kfian, the
Consultant will have a definite recommendation as to how much excess
-nfiitration/inflow will be delivered to the new corridor sewer. With
this information, the Consultant will re-evaluate the design size of
the 1971 pians and make changes as necessary. The Consultant: shall make
use, where possible, the results of Sanitary Sewer System Report for
University of Iowa by Shoemaker Consultants, 1976.
B. The Consultant shall provide the City with an informal report containing
the design calculations for sizing the sewer. This report shall not
necessarily be typewritten, but should include hand calculations showing
allocations given to various areas along with infiltration/inflow quantities
delivered to the sewer.
C. The Consultant shall review the original plans and specifications (Veenstra
& Kimm drawings consecutively numbered 11627-1 through 11627-16) by field
checking the original routing of the sewers. Required changes in routing
shall be noted during the field check and necessary field surveys performed
for any rerouting required.
D. As a further outcome of the Sewer System Evaluation Survey, the Consultant
will evaluate the need for a new storm sewer facility to accommodate
infiltration/inflow from the campus area and other storm water flows should
this be deemed cost-effective. (Such storm sewers would therefore become
part of the design project for the corridor sewer.)
The plans and specifications shall include such details, grades and profiles
to provide for the complete replacement of the pavement in Madison Street
from its intersection with Prentiss Street (Station 7.3+00) north to Davenport
Street (Station 65+00), or approximately 4,200 linear feet of pavement.
Pavement width shall be closely coordinated with the City. Further, the
plans and specifications shall include such details as necessary for complete
restoration of all surfaces and facilities damaged or destroyed during
construction.
At the time of completion as specified in this Agreement, the Consultant
shall deliver to the City five copies of the specifications and contract
drawings in a complete form and ready for advertising for bids.
3562
G. Upon review and aplotal of the plans by the City*e Consultant shall
assist the City with presentation of the plans to IDEQ and the U.S. EPA
and a request for a step three construction grant for the entire project.
H. The Consultant shall assist in the preparation of notice to contractors
and shall provide plans and specifications for prospective bidders.
The Consultant shall have a representative present when bids and proposals
are opened and shall prepare a tabulation of bids for the Owner and shall
advise the Owner in making the awards. After the awards are made, the
Consultant shall assist in the preparation of necessary contract documents.
I. Upon request, the Consultant agrees to furnish special services. Such
special services may include:
(1) Soil investigations, including test borings, related analyses and
recommendations.
(2) Land surveys, title and easement searches and descriptions of
boundaries and monuments and related office computations and
drafting.
(3) Assist the client as expert witness in -litigation arising from
the. development of construction of the project and in hearings
before various approving and regulatory agencies.
J. The Consultant shall prepare a brief financing plan consistent with the
City's ability to fund the project.
N, --thing in this Agreement pertains to the construction phase of the proposed project.
Resident inspection services for the construction of the project shall be negotiated
as an amendment to this Agreement prior to award of any contract for the construction
of the project.
11. TIME OF COMPLETION
I The Consultant will complete phases A through F of Section I of this Agreement by
December 15,1977.
III. GENERAL TERMS
1. Should the Consultant or the City terminate the contract, said Consultant shall
be paid on the basis of direct hourly rates as herein attached times a 2.2 multiplier
for the various classes of personnel actively engaged on the project for all work
completed and for all work and services performed up to the time of termination;
however, such sums shall not exceed 80% of the "not to exceed" amounts listed in
Section IV, if terminated by the Consultant. Either party may terminate ,thi.s Agreement
upon thirty (30) days notice.
2. This Agreement shall be binding upon the successors and the assigns of the parties
hereto; provided, however, that no assignment shall be made without the written consent
of all parties to said agreement.
3. It is understood and agreed that the employment of the Consultant by the City for
the purposes of said project shall be exclusive,' but the Consultant shall have the
right to employ such assistance as may be required for the performance of the project.
Said Consultant shall be responsible for the compensation, insurance and all clerical
detail involved in their employment.
4. It is agreed by the City that all records and files pertaining to information
needed for said project will be made available by said City upon request of the
Consultant. The City agrees to furnish all reasonable assistance in the use of
these records and files.
5. It is further agreed that no party to this Agreement will perform contrary to
any State, Federal or County law or any of the Ordinances of the City of Iowa City,
Iowa.
6. The Consultant shall attand such meetings of the City Council relative to the work
set forth in this contract as may be requested by the City. Any requirements made by
the City shall be given with reasonable notice to the Consultant so that he/she may
attend. The number of such meetings shall not be greater than five for purposes of
defining the "not to exceed" amount in Section IV.
-2-
7. The Consultant agrees to furnish, upon termination of Vs Agreement and upon
demand of the City, copies of all basic notes and sketches, charts, computations,
and any other data prepared or obtained by the Consultant pursuant to this Agreement,
without cost and without restriction or limitation as to their use.
8. The Consultant agrees to furnish all reports and/or drawings with the seal of a
Professional Engineer or Architect affixed thereto where such seal is required by law.
9. The City agrees to tender to the Consultant all fees and money in accordance with
the schedule that follows except that failure by the Consultant to satisfactorily
perform in accordance with this Agreement shall constitute grounds for the City to
withhold payment in the amount sufficient to properly complete the project in
accordance with this Agreement.
10. Should any section of this contract be found to be invalid, it is agreed that all
other sections shall remain in full force and effect as though severable from the part
invalid.
11. Direct Personal Expense for the purposes of this contract shall be defined as
hourly wage plus retirement and fringe benefits. Said Consultant shall, upon demand,
furnish receipts therefore or certified copies thereof.
12. Records of. the Consultant's Direct Personal Expense, Consultant Expense and
Reimbursable Expenses pertaining to the Project, and records of accounts between
the City and Contractor, shall be kept on a generally recognized accounting basis
and shall be available to the City or his authorized representative at mutually
convenient times.
U. All reimbursable outside expenses are in addition to the fees for Basic
Services and include actual expenditures made by the Consultant, his employees,
or his consultants in the interest of the Project for the following incidental
expenses listed:
a. Expense of transportation and living when travelling in connection
with the Project and for long distance calls.
b. Expense of reproduction, postage and handling of Drawings and
Specifications, excluding copies for Consultant's office use.
c. Fees paid for securing approval of authorities having jurisdiction
over the project. Fees paid by the Consultant for special consultants
employed with City's approval for services other than those defined
in this contract.
IV. COMPENSATION FOR SERVICES
The City agrees to pay for services stated in this contract on the basis of the
following fees:
The Consultant shall be paid a fee based upon 2.2 x Direct Personal Expense.
The total fee, excluding reimbursables and any special services for this
contract, shall not exceed $55,000.00. Special services if required shall
be based upon 2.2 x Direct Personal Expense.
GENERAL
The Direct Personal Expense'of all personnel classifications associated with this
project shall be attached as Exhibit "A". The City agrees to reimburse the Con-
sultant for outside expenses at cost. The Consultant shall furnish receipts of all
outside expenses upon request.
The "not to exceed" figure listed in this section refers only to Direct Personal
Expense and do not include reimbursables. Reimbursable expenses and special
services are above and beyond the "not to exceed" figure.
l.
he
shall list the lindividual,athe be billend dhourrsyworked,nanue paable �dyhourllyhratel, bylphasetas shownon
Exhibit B.
All provisions of this Agreement when not specifically defined shall be reconciled
in accordance with the highest ideals of the Engineering Profession.
-3-
The undersigned do hereby state that this contract is executed in triplicate,
as though each were an original and that there are no oral agreements that
have not been reduced.to writing in this instrument.
It is further stated that there are no other consideration or monies contingent
upon resulting from the execution of this contract nor have any of the above
been applied by any party to this Agreement.
FOR THE CITY:
-144&w. P. �'(.Q.u.Ptawy
/FAY z' -
ATTEST:
FOR THE CONSULTANT:
ATTEST:
-4-
E
Grade
EXHIBIT A
STANDARD LABOR RATES
July 1, 1977
ENGINEERS
P-4
P-5
P-6
P-7
P-8
P-9
P-10
P=11
P-12 .
P-13
P-14
P-15
P-16
P-17
P,18
P-19
P-20
Partners E Associates
TECHNICIANS
•
Ilourjy I_ee
$ 8.00
8.50
9.00
9.50
10.00
10.50
11.00
11.50
12.00 '
13.00 '
14.00
15.00
16.00
17.00
18.00
19.00
20.00
22.00
NON-PROFESSIONAL
Grade
Hourly Fee
Grade
Hourly Fee
T -D
$ 6.00
-NP-5
$ 5.00
T -E
6.50
NP -f)
5.50
T -F
7.00
NP -7
6.00
T -G '.
7150
NP -8
6.50
T -II
8.00
NP -9
7.00
T -I
8.50
NP -10
7:50
T. -J
9.00
NP -11
8.00
T -K
9.50
NP -12
8.50
-T-L
10:00
WP -13
9.00
T-11
11.00
NP -14
9,50
T -N .•
12.90
NP -15
10.00
T-0
13.00
NP -16
10.50
T -P
14:00
NP -17
11.00
T-9
15.00
NP -18
11.50
T -R
16.00'
NP=19
12.00
T -S 17.00
The above rates are subject to change January 1 and July 1 of each'year.
VEENSTRA R I\IMM
,
• EXHIBIT B •
ENGINEERING FEE
(Maximum)
REDESIGN OF RIVER CORRIDOR SEWER
i
1-C Field checking and field surveys for
rerouting sewers:
a. Field checking:
Management Supervision
Construction Engineer
Head -Design Department
Party Chief
b. Field surveys: (Assume that 8,000 of
16,000 LF must be done over. Calculate
at rate of 3.0 minutes per LF)
8,000 x 3:0 = 24,000 min. = 400 hours (±)
of individual time for crews.
Construction Engineer
Engineer
Field Crew Supervisor
Party Chief
Survey Crewman ..
Survey Crewman
8
flours
Rate
16
Total
1-A Re-evaluation of sizing of sewer based on
16
17
272
16
results of SSES:
160
56
7
$ 912
Management Supervision
10
$22
$
220
Project Engineer
30
17
510
Engineer
30
13
390
Head -Design Department
4
17
68
74
$
1,188
1-B Design calculations for sewer sizing:
Management Supervision
1
$22
$
22
Project Engineer
2
17
34
Engineer
2
13
26
Secretary
2
10
20
7
$
102
i
1-C Field checking and field surveys for
rerouting sewers:
a. Field checking:
Management Supervision
Construction Engineer
Head -Design Department
Party Chief
b. Field surveys: (Assume that 8,000 of
16,000 LF must be done over. Calculate
at rate of 3.0 minutes per LF)
8,000 x 3:0 = 24,000 min. = 400 hours (±)
of individual time for crews.
Construction Engineer
Engineer
Field Crew Supervisor
Party Chief
Survey Crewman ..
Survey Crewman
8
$22
$ 176
16
19
304
16
17
272
16
10
160
56
7
$ 912
8
$19
$ 152
8
13
104
8
13
104
135
10
1,350
135
7
945
135
7
945
429
$ 3,600"
c. Engineering for 8,000 LF:
(Use 2.3 minutes/LF;
8,000 x 2.3 = 18,400 minutes = 300 hours)
Management Supervision
Head -Design Department
Engineer
Secretary
d. Drafting for 8,000 LF: .
(Use 2.1 minutes/LF;
8,000 x 2.1 = 16,800 minutes = 280 hours)
Head -Drafting Department
Draftsman
9-D.Evaluate need for storm sewers:(If storm
sewers are needed, amend contract to
include plans and specifications later;
otherwise, stub out from under pavement.)
Management Supervision
Project Engineer
Engineer
Survey Crew
Secretary
1-E Design Madison Street pavement and details
4,000 LF = 20,000 SY:
Management Supervision
Head -Design Department.
Engineer
Head -Drafting Department
Draftsman
1-F Deliver Plans and Specs
1-G PreDare'Grant Application
s
Hours Rate Total
24
40
300
20
01-T,i
20
280
300
20
60
60
120
10
270
20
40
100
10
150
320
$22
17
13
10
$13
9
$22
17
13
8
10
$22
17
13
13
g
$ 528
680
3,900
200
$ 5,308
$ 260
2,520
$ 2,780
$ 440
1,020
780
960
100
$ 3,300
$ 440
680
1,300
130
1,350
$ 3,900
Management Supervision 16 $22 $ 352
Engineer 4 13 52
Secretary , 4 10 40
24 $ 444
-2-
SUMMARY
Item Description
1-A Re-evaluation of Sewer Sizing
I -B Design Calculations for Sewer Sizing
1-C Field Checking & Field Surveys for
Rerouting Sewers
- 1-D Evaluate Need for Storm Sewers
1-E Design Madison Street Pavement & Details
1-F Deliver Plans and Specs
1-G Prepare Grant Application
1-H Advertise for Bids, Letting,
Preparation of Contracts & Bonds
14 Financing Plan
Plus 10% Contingencies
Hours
74
7
1,169
270
320
24
42
30
1,936
Use Upset Figure of $55,000
Direct
Labor
$ 1,188
102
12,600
3,300
3,900
444
712
555
22,801
x 2.2
$ 2,614
224
27,720
7,260
8,580
977
1,566
1,221
50,162
5,016
55,178
Hours
Rate
Total
1-H Advertise for
bids, letting, prepare
contracts and
bonds:
Management
Supervision
24
$22
$ 528
Engineer
8
13
104
Secretary
6
10
60
Clerk (Bid
tabs)
4
5
20
42
712
14 Financing Plan:
Management
Supervision
.20
$22
$ 440
Engineer
5
13
65
Secretary
5
10
50
30
555
SUMMARY
Item Description
1-A Re-evaluation of Sewer Sizing
I -B Design Calculations for Sewer Sizing
1-C Field Checking & Field Surveys for
Rerouting Sewers
- 1-D Evaluate Need for Storm Sewers
1-E Design Madison Street Pavement & Details
1-F Deliver Plans and Specs
1-G Prepare Grant Application
1-H Advertise for Bids, Letting,
Preparation of Contracts & Bonds
14 Financing Plan
Plus 10% Contingencies
Hours
74
7
1,169
270
320
24
42
30
1,936
Use Upset Figure of $55,000
Direct
Labor
$ 1,188
102
12,600
3,300
3,900
444
712
555
22,801
x 2.2
$ 2,614
224
27,720
7,260
8,580
977
1,566
1,221
50,162
5,016
55,178
0
RESOLUTION No. 77-354
A RESOLUTION ESTABLISHING LIABILITY INSURANCE LIMITS WITH
RESPECT TO TAXICABS.
WHEREAS, the City Council of the City of Iona City, Iowa, has enacted
Ordinance No. 77-2844 which establishes comprehensive regulations for taxi-
cabs operating within the City of Iowa City, Iowa, and
WHEREAS, said Ordinance provides that as a condition of granting a certifi-
cate of public convenience and necessity the person seeking such certificate
shall file in the Office of the City Clerk a motor vehicle operator's liability
insurance policy, the minimum limits of which shall be set forth by a City
Council resolution.
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF IOWA CITY,
IOWA, that the minimum limits for a motor vehicle operator's liability insurance
policy as required in Ordinance No. 77-2844 be as follows:
To cover the assured's liability for personal injury or
death of one person, as a result of one accident, or other
cause. Fifty Thousand Dollars ($50,000).
To cover the assured's liability for personal injury or
death of more than one person, as a result of one accident
or other cause. One Hundred Thousand Dollars ($100,000).
To cover the assured's liability for damage to or destruc-
tion of property other than that of the assured, as a
result of any one accident or cause. Twenty -Five Thousand
Dollars ($25,000).
It was moved by Foster and seconded by Perret
that the Resolution as read be adopted, and upon roll call there were:
AYES: NAYS: ABSENT:
x Balmer
�— deProsse
X Foster
x Neuhauser
X Perret
x Selzer
X Vevera
Passed and approved this 30th day of August 1977.
��A1l.0 C. SIA. tuuQ,i
Mayor
ATTEST: ?J -t; qV. Sim',
City Clerk
RECEIVED & pTR017rD
py a= LEGAL PEPARTMMIT
3563
2
S. Mayor Pro tem deProsse read the/contingencies added to the Resolution for
Windsor Heights Addn. V. Moved by Perrot seconded by Foster that Council vote
to condemn the property in question as park land for an addition to Hickory
Hill Park. Citizens appearing included: Tom Alberhasky, 1613 1'. College;
Betsy Hillman, 313 Windsor Drive; George Baker; James Christensen, 1532
Rochester Ave.; Atty. Don Hoy for the developer; Doris PTUecil, 317 Windsor
Drive, Dennis Sauegling, Hawkeye Engr., for developer; Ralph Oxford, 222
Gilbert Ct. and Chrm. Flo Stockman, Parks f, Rec. Comm. Each Councilmember
discussed the reasoning for the contemplated vote. Atty. Hoy advised that
the developer was willing to undertake whatever measures necessary so there
would be no erosion problems during construction. Stockman explained actions
by the P$R Comm. for the past three years concerning this property. Vote
on the motion: Perret and deProsse voting 'aye', Poster, Selzer, Vevera and
Balmer voting 'no'. Motion defeated, 2/4, Neuhauser absent. 1kxWxxxmaxx
Moved by deProsse, seconded by Vevera to add a 3rd contingency to the Resolution,
statin
that the preliminary plat be approved subject to 13) erosion control measures as
set forth in the Stormwater Management Control ordinance as adopted by Council
be adhered to.' Motion carried unanimously. Moved by Selzer, seconded by
Foster to adopt RES. H recorded in Bk.p. APPROVING
PRELIMINARY PLAT OF WINDSOR HEIGHTS ADDITION , PART S, AS AMENDED. Selzer,
Vevera, Balmer and Foster voted 'aye', Perrot and deProsse abstained. Motion
carried 4/0, Neuhauser absent.
10. Moved by Selzer, seconded by Perrot to adopt the Resolution Establishing'
Liability Insurance Limits with Respect to Taxicabs. Ralph Oxford, owner
of Yellow -Checker and Super Cabs appeared.for discussion. It was moved
by Foster and seconded by Selzer to defer the resolution one week so that
the iega3 staff can check with other communities on AHa insurance limits.
Motion carried unanimously.
*City of Iowa CA
MEMORANDUM
DATlt August 29, 1977
TO: Neal Berlin, City Manager
FROM: Tony Kushnir, Asst. City Attorney
RE: Taxicab Liability Requirements
As per your request, I am submitting this survey which was
conducted by Ms.
Mary Meade, Legal Secretary,
of various Iowa
municipalities and the minimum requirements in
said municipalities
as to required liability insurance coverage.
Personal Injury Personal Injury
Property
City
per Person per
Occurrence per
Occurrence
Aires
$100,000
$200,000
$25,000
Cedar Rapids
10,000
20,000
5,000
Davenport
100,000
100,000
25,000
Des Mines
100,000
300,000
50,000
Dubuque
100,000
300,000
50,000
Waterloo
5,000
10,000
1,000
An interesting note is that the cities of Ames, Des Moines,
Dubuque and Davenport have recently changed the mininami requirements
to the present levels. In addition, Davenport is considering raising
the minium liability insurance for personal injury per occurrence to
$300;000. Should there be any further questions, please don't hesitate
to contact me. Thank you.
3563
RESOLUTION NO. 77-355
RESOLUTION PROPOSING TO SELL A PART OF FERSON AVENUE
IN BLACK'S PARK ADDITION TO THE CITY OF IOWA CITY
TO ABUTTING OWNERS.
WHEREAS, the Council has by ordinance vacated the following right-of-way:
All of Ferson Avenue shown on the plat of Black's
Park Addition, Iowa City, Iowa, which plat can be
found at Plat Book 2, page 38, of the plat records
of Johnson County, Iowa, lying between Blocks I and
G and running from the north line of Park Road to the
south line of Gould Street, except for the center
twenty (20) feet thereof, and
WHEREAS, the area just previously described is pictured on a plat map,
which plat map is attached to this resolution as Exhibit "A", and by this refer-
ence made a part hereof, and
WHEREAS, the parcels of the vacated right-of-way proposed for sale are denoted
as parcels A, B, C, and D on the said plat map, and
WHEREAS, it is the policy of the City to offer the land first to abutting
owners, at a fair appraised price, and
WHEREAS, the amers abutting the said parcels A, B, C, and D have indicated
an interest in purchasing the parcels, and
WHEREAS, a private water service for lots 5 and 6 of Block G, traverses
parcel A.
NOW, THEREFORE, BE IT RESOLVED BY THE COUNCIL OF THE CITY OF IOWA CITY, IOWA:
1. That the Council proposes to sell parcels A and B to the abutting
property owners for $360 per parcel:
A - to Richard C. and Georgia T. Pegnetter
B - to Lewis H. Jacques and wife
2. That the Council proposes to sell parcels C and D to the abutting
property owners for $60 per parcel:
C - to Lewis H. Jacques and wife
D - to Steffi Hite
3. That as a condition of the proposed sales, the potential buyers, as
necessary, shall agree to make all necessary arrangements to protect the rights
of all persons receiving water servioe from lines traversing any of the said parcels.
4. That a public hearing be held upon these proposed sales at 7:30 P.M. in
the Council Chambers, Civic Center, 410 E. Washington St., Iowa City, Iowa, on
the 13th day of September, 1977.
• _2 •
It was moved by deProsse and seconded by
Balmer that the Resolution as read be adopted, and upon
roll call there were:
AYES: NAYS: ABSENT:
x Balmer
x deProsse
x Foster
x Neuhauser
x Ferret
x Selzer
x Vevera
Passed and approved this 30th day of August 1977.
ATTEST:-?14cCkIQ.Sht;. nu
- City Clerk
Q- lujaauf
Mayor
RECEIVED & APPROVED
1�3*4 THE LEGAL DEPART14EIlT
I •
C 0V� W
O
U
Exhibit A
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L��L-! ti•l'Y�[A/l2Qn,.<-P-I.L.�yLV�""""J / �l v
i/
RESOLUTION NO. 77-356
RESOLUTION AMENDING THE DESIGN STANDARDS FOR PUBLIC WORKS
IMPROVEMENTS IN IOWA CITY, IOWA, BY THE INCLUSION OF AN ADDITIONAL
SECTION PERTAINING TO EROSION AND SEDIMENTATION CONTROL.
WHEREAS, the City Council of the City of Iowa City, Iowa, by Resolution
No. 75-120 adopted certain standards for public improvement projects in Iowa
City, Iowa, and
WHEREAS, Ordinance No. 76-2807 authorizes the Department of Public Works
to develop and establish written policies, procedures, criteria and regulations
concerning the inspection, determination and approval of standards for the
construction and/or development of storm water management structures, and
WHEREAS, pursuant to said ordinance the Department of Public Works has
developed an addition to design standards for public works improvements as
adopted by Resolution No. 75-120, a copy of which is attached to this resolution
and made a part hereof.
NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF IOWA CITY,
IOWA:
1. That an Addition to Design Standards for Public Works Improvements as
proposed by the Department of Public Works be adopted.
2. That the Addition be titled "Section X - Erosion and Sedimentation
Control."
3. That copies of the Addition be kept on file with the City Clerk.
It was moved by Foster and seconded by Vevera that
the Resolution as read be adopted, and upon roll call there were:
AYES: NAYS: ABSENT:
x Balmer
x deProsse
x Foster
x Neuhauser
x Perret
_ x Selzer
x Vevera
Passed and approved this 30th day of August 1977.
A I 1 (
Mayor
ATTEST: ?�1eki'�.�QE/. 1EJP.au14�
Cip Clerk
IJECE IVSD & 1PPROVED
Bx AI, DuPIJiT6:ElIT
is
ADDITIONS TO DESIGN STANDARDS
FOR. PUBLIC WORKS IMPROVEMENTS
IOWA ; CITY
yJ
SECTION X = EROSION AND
SEDIMENTATION CONTROL
T
I
1
I
1
Revisions to Design Standards for Public Works Improvements
Iowa City, Iowa
Section X - Erosion and Sedimentation Control Page 1
x - 1.0 Author
1.1 The Iowa City Storm Water Ordinance (No. 76-2307) provides
that:
"Immediately after preliminary plat approval, preliminary
PAD, LSRD, or LSNRD approval, or building permit approval,
whichever comes first, and in all cases before site work
begins, the developer shall submit the following documents
to the Public works Director for approval:
1. Plans and proposed methods for the prevention and
control of soil erosion for the entire development."
1.2 "The original developer shall be responsible for the
implementation and performance of erosion.control measures
for the time span from the start of preliminary grading
until sale of lots or land to a purchaser. After commence-
ment of lot or land sales, the actual owner of any lot or
land within a development shall be responsible for the
prevention and control of soil erosion for that parcel of
land."
1.3 "No building permits for habitable structures shall be issued
for any development or redevelopment not complying with this
ordinance."
1.4 "Energy dissipating devices or stilling basins shall be
provided to ensure that downstream soil erosion is alleviated
and the regime of the downstream drainage facility is not
disturbed."
x - 2.0 Statement of Intent
2.1 The guidelines contained in this manual are specifications
for erosion and sediment control. Methods and procedures
for gaining satisfactory results are described.
2.2 Objectives of these standards are:
a. To protect existing facilities and property from damage
by sedimentation; i.e., to keep sediment from streets,
sidewalks, and lawns; and to prevent storm sewers, catch
basins, bridges, culverts, and open channels from being
blocked.
b. To retain valuable top soil on construction sites.
I
.Revisions to Design Standards for Public Works Improvements
'Iowa City, Iowa
Section X - Erosion and Sedimentation Control Page 2
I' X - 3.0 Procedure For Permit
3.1 An Erosion and Sedimentation Control Plan is required
and shall be filed as follows:
3.1.1 For new subdivisions the Erosion and Sedimentation
Control Plan shall be submitted at the same time
the construction plans are submitted for develop-
ment of streets, sewers, and other public improvements.
3.1.2 In the case of development that does not require
submission of a subdivision plat, the Erosion and
Sedimentation Control Plan shall be submitted with
the building plans for the structure or structures
on the site prior to grading operations.
3.1.3 No building permit for habitable structure will
be issued unless Erosion and Sedimentation Control
Plans are submitted with the building plans.
3.2 Plan Content:
3.2.1 The plan shall identify onsite areas which will be
subject to erosion and shall identify nearby off-
site areas which are vulnerable to damage from
sedimentation or from increased runoff caused by
the development.
3.2.2 A location map, sufficient in detail to locate the
site, shall be a part of the plan. The plan shall
also depict the drainage of the area, the proposed
alterations to the drainage, and a description of
the proposed erosion and sedimentation control
measures that are to be installed during and after
each phase of construction.
3.2.3 If vegetative ground cover, either temporary or
permanent, is to be used, the plan shall specify
the types and rates of seed, lime, fertilizer and
mulch.
I
Revisions to Design Standards for Public Works Improvements
'Iowa City, Iowa
Section X - Erosion and Sedimentation Control Page 3
X - 4.0 Design and Performance Standard
4.1 Erosion and sedimentation control measures and structures
' and devices shall be planned, designed and constructed to
provide control from the caulculated peak rates of
runoff from a 5 year frequency storm.
4.2 It is the intent of these specifications to eliminate
visible deposits of eroded soil within and downstream of
the site or lot under development. "Visible deposits"
means soil deposited
' a. in streets, gutters, catch basins, and storm sewer
pipe;
b. in drainage swales, creeks and rivers;
' c. on private or public property of any kind.
- X 5.0 Protection of Downstream Facilities
5.1 During any development or construction operations covered
by these requirements, it shall be the responsibility of
the developer to conduct periodic inspections of the
installed erosion control facilities, and of nearby down-
stream facilities, to determine if erosion and sedimentation
control is effective. Any damage to downstream facilities,
such as clogged storm sewers or inlets, which damage has
been caused by onsite erosion, shall be repaired or cleaned
by the developer. In addition to such inspections by the
developer, supplemental inspections may be carried out by
City Inspectors. Any observed damage will be noted and
- notice given to the developer to effect repairs.
X 6.0 Erosion and Sediment Control Measures
6.1 Two types of erosion and sediment control measures are
available - vegetative and mechanical. Either type of
control must be properly designed, installed, and
maintained if it is to accomplish the intended purpose.
6.2 Vegetative controls are intended to prevent soil from
eroding initially or to retard overland flow to the
extent that deposition occurs. When vegetative practives
by themselves do not provide the desired degree of
protection, mechanical measures must also be utilized.
I
Revisions to Design Standards for Public Works Improvements
Iowa City, Iowa
Section X - Erosion and Sedimentation Control Page 4
IX - 7.0 Vegetative Measures
7.1 A good stand of vegetative cover provides the best pro-
tection against soil erosion by performing a number of
important functions including: shielding the soil from
the impact of raindrops, retarding the surface flow of
water thereby permitting greater infiltration, and
maintaining a pervious soil surface capable of absorbing
water.
7.2 Vegetative erosion control measures may be either:
a. Temporary cover for controlling erosion during
construction, or
' b. Permanent cover to stabilize the site after con-
struction is completed.
7.3 Temporary cover crops shall be used where protection is
needed for up to six (6) months. Rapidly growing plants
shall be used as shown in Table I of the Appendix.
For temporary seeding, fertilizer shall be applied
at the rate of 600 lbs/acre, or 15 lbs/1000 square feet
using 10-10-10 fertilizer (106 nitrogen, 108 potassium,
108 potash).
;1
Temporary cover shall be established on all exposed areas
as soon as possible after exposure if the site is not to
be built on within 45 days. If construction is suspended
or delayed, the area shall promptly be seeded to temporary
cover.
7.4 Establish permanent cover on exposed areas not in the
immediate construction area, or seed to temporary cover
immediately upon completion of grading. Special care
should be taken in the selection of plants for permanent
cover. Final choice should be based on suitability of the
' plants to the site, aesthetic values, maintenance require-
ments, and longevity. On steep slopes and areas inaccessible
to easy maintenance, use crownvetch, birdsfoot trefoil,
or native grasses.
1
I
I
Revisions to Design Standards for Public Works Improvements
'Iowa City, Iowa
Section X - Erosion and Sedimentation Control Page 5
I ,
The following seed mixture is to be used for permanent
seeding (not for lawns):
Kentucky -31 Fescue 3 lbs/1000 sq. ft. or 150 lbs./Acre
or
Brome............. 1 lb/1000 sq. ft. or 35 lbs/Acre
Fertilize at the rate of 600 lbs/acre of 12-12-12 shall
be used.
7.5 When seeding is made on critical sites, steep slopes
(2:1 or steeper), or adverse soil conditions, mulch
material shall be applied immediately after seeding.
Mulch shall consist of clean straw, grass or hay. The
mulch may be applied by hand, blower, or by other
suitable equipment.
Mulch shall be applied at the following rates:
Material Rate per Acre Rate per 1000 sq. ft.
Straw or Hay 2 Tons 100 lbs.
Runoff water from areas above that to be mulched shall be
diverted if possible before mulch is applied. All areas to
be mulched shall be reasonably smooth, and free of rills
and gullies.
Hay or straw mulch shall be anchored immediately after
application, using a farm disk set straight. On areas
too steep for machinery, an emulsified asphalt may be
applied, following the manufacturer's recommendations.
When netting is used to anchor mulch, it shall be applied
parallel to the direction of the slope. Netting shall be
stapled to the ground with sufficient staples to hold mulch
in place.
I
7.6 Sodding is,more costly than seeding, but provides immediate
protection. Sodding shall be used upon direction of the
City Engineer where the concentration of runoff is such
that other methods of stabilization will not be effective,
and in drainage ways or waterways where natural protection
has been removed.
Revisions to Design Standards for Public Works Improvements
Iowa City, Iowa
Section X - Erosion and Sedimentation Control Page 6
Sodding should preferably be done during the periods of:
April 1 to June 15
August 1 to November 1
Fifteen pounds of 12-12-12 fertilizer per 1,000 square
feet shall be applied to the sod bed and mixed into the
surface soil prior to laying the sod.
Sod shall be carefully placed in rows or strips at right
angles to the centerline of any channel (i.e., at right
angles to the direction of flow). The sod strips shall be
placed tightly together so that no open joints.are left
between strips or between the end of strips. Joints
shall be staggered at least one foot on adjacent rows of
sod. The edges of the sod at the top of slopes shall be
turned slightly under and a layer of soil compacted over
the edge so as to conduct surface water over and onto
the top of the sodded area. The sod shall be well
tamped and firmly in place.
In the absence of adequate rainfall, sod shall be watered
adequately to maintain growth.
X - 8.0 Mechanical Measures
8.1 Mechanical measures may be used to intercept, divert,
convey, retard or otherwise control runoff. They may
be constructed by reshaping the land to form ditches,
terraces, or dikes, or may be made of straw bales,
wood, concrete blocks, or sand bags. (See Figure I and
II of the Appendix).
A good deal of erosion control can be accomplished by
correct grading practices. The problems brought on by
soil erosion and sedimentation can usually be lessened
by proper planning of the grading operations.
8.2 Guidelines for Grading:
8.2.1 Grade on the area on which there will be immediate
construction, as opposed to grading the entire
site. It is poor practice to remove all topsoil
and vegetation from large areas. See Figure III
of the Appendix.
I
Ii
Revisions to Design Standards for Public Works Improvements
Iowa City, Iowa
Section X - Erosion and Sedimentation Control Page 7
8.2.2 Fit the development to the site so that minimum
grading is required. Plan streets to fit the
contour of the land.
8.2.3 Use areas of steep slopes, waterways, and flood
plains for parks, open space, and recreation use.
8.2.4 If a graded lot is not to be built on within 45
days, temporary vegetation must be established.
8.2.5 Construct sediment basins or diversions to
detain runoff and trap sediment during con-
struction. Where diversion channels are used,
velocities shall be kept within the limits
shown in Table II of the Appendix.
8.2.6 Storm drainage facilities must be completed and
made operational as soon as possible. Temporary
silt traps made of straw bales shall be used,
as needed, to protect storm sewer inlets and to
prevent sediment from clogging storm sewers
during construction.
8.2.7 Retain natural vegetative cover in drainage ways
when possible. Save trees and existing vegetation
wherever possible.
8.2.8 Obliterate diversion dikes, channels, sediment
basins, and silt traps after areas that drain into
them are stabilized. Blend these areas into the land-
scape and establish vegetation. Sediment basins that
are to be retained for storm water detention should be
excavated to original design contours and seeded to
permanent cover.
8.2.9 Diversions shall be built at top of slopes prior
to cutting operations to prevent water from
washing over the face of the cut slopes.
8.2.10 Steepness of cuts will depend upon soil type and
project design; however, cut slopes of 3:1 or
flatter are desirable.
8.2.11 Always grade to the flattest cut or fill slopes
that the site and project design will permit.
I
Revisions to Design Standards for Public Works Improvements
'Iowa City, Iowa
Section X - Erosion and Sedimentation Control Page 8
I
1
8.3 Diversion Structures
8.3.1 Diversion structures represent any modification
of the ground surface that intercepts and
diverts runoff so that the distance of flow to
a larger channel system is increased. These can
be in the form of a ditch or Swale, dike, or
terrace. Generally, a ditch or dike is used in
areas of moderate to high relief and can be
adapted to urban use.
8.3.2 A diversion may also be constructed across a
slope to collect runoff water and convey it to a
stable outlet.
8.3.3 For construction details, criteria, and specifi-
cations, see Reference No. 1, pages 84-90. (Appendix).
8.4 Sediment Basins
8.4.1 Sediment basins may be used on large areas until
vegetation is established and the area is
stabilized if other methods of control are not
sufficient. A sediment basin consists of a
depression with a dam or embankment, a pipe outlet,
and an emergency spillway, the size and design
depending upon the drainage area, soil types, and
rainfall pattern. See Figure IV in the Appendix.
8.4.2 Sediment basins operate by detaining runoff water,
allowing sediment to settle out. The capacity
of a basin must be equal to the volume of sediment
expected to be trapped during the planned life of
the development or improvements it is designed to
protect. The site shall be designed to provide
adequate storage for not less than 1/2 inch of
sediment per acre of drainage area. Where it is
determined that stored sediment and debris will be
periodically removed to obtain required storage,
the capacity may be reduced proportionately.
8.4.3 These structures must be designed essentially as
a dam. For additional details, criteria, and
specifications for relatively small sediment basins,
see Reference No. 1, pages 147-155. If failure of
the structure could lead to loss of life, damage to
homes or other developments, or in the interruption
of public facilities, a professional engineer must•
be engaged to design the structure.
II
II
Revisions to Design Standards for Public Works Improvements
Iowa City, Iowa
Section X - Erosion and Sedimentation Control Page 9
X - 9.0 Storm Drain Outlet Protection
9.1 Protection to prevent erosion and scouring shall be
provided at storm drain outlets, road culverts, paved
channel outlets, and other water discharge sites.
9.2 Pipe aprons, rip -rap, paved channels, sodded ditches,
or other effective measures shall be used to reduce
velocity to within the limits shown in Table II of
the Appendix.
9.3 The total length of protection provided below the outlet
shall be at least six times the culvert diameter (6d),
or six times the depth of flow in the channel (6D),
whichever is greater. See Table III of the Appendix for
lengths of aprons and protection required for various
depths of flow and velocities.
X - 10.0 Assistance Available
10.1
The Soil Conservation Service, working through the
Johnson County Soil Conservation District, will provide
assistance to individual developers and builders in
making erosion and sedimentation control plans for their
developments.
10.2 This assistance may include soils information, advice as
to the type and amount of needed erosion control measures
during construction, and a plan for maintenance of erosion
control measures after construction is completed.
10.3 Reference No. 1 is recommended and acceptable to the City
for erosion control measures as alternates and in addition
to these specifications.
I
II
Example Problems
Permissible velocities on various types of soil with differing
lengths of vegetation.
Example: Clay soil
Good stand of vegetation
Length - 6" to 10"
Retardance = C, from Table IV
Velocity permitted = 5.5 Ft./Sec. (from Table V)
To use the Graph I and Table V together to determine allowable
velocity on various slopes of land:
Example: Silty clay loam soil
Nearly bare - untilled
From Table V - permissible velocity on bare
land = 2 f.p.s.
On Graph I - enter at 2 f.p.s. go up to nearly
bare ground line - Slope then = 4%
Soil on slopes over 4% require protection.
Degree of erosion protection depends on slope. Degree of
retardance can be obtained from Tables IV and V and lengths
of vegetation needed determined.
Example: Sandy loam soil, nearly bare, untilled, 6% slope.
From Graph I, velocity will. be 2.5 f.p.s.
From Table V, degree of retardance must be "C".
From Table IV, vegetation must be good 6" to
1011, or fair 11" to 24".
'1
1
Species l/
Oats
Rye
;.1
TABLE I
TEMPORARY SEEDING BY RATES, DEPTHS AND DATES
Planting :
Seeding Rate Depth Seeding Dates 3/
: Per Lbs/1000 : 3/15- : 5/20- : 8/15-
: Acre sq/ft. (Inches) : 5/20 : 8/14 : 10/15
3 bu. 2.0 1-2 X - -
2-1/2 bu. 3.0 1-2 - - X
Wheat 2-1/2 bu. 3.0
Sudangrass 2/ 40 lbs. 1.0 1-2 - X -
_ 1 Use varities currently recommended to Iowa. Use certified seed only.
' ;2/ Use common sudangrass varieties only. Do not use hybrids.
3/ Between fall and spring seeding dates, use mulching only or sodding
practices.
' X Applicable during entire period.
�.! Not applicable in period.
From Reference No. 1
i.
51
t
it
II
TABLE II
PERMISSIBLE VELOCITIES FOR DIVERSION DITCHES
Water Transporting:
Clear Noncolloidal
water, no Silts, sands,
particles Colloidal gravels, or
carried Silts rock fragments
' velocities in diversion ditches or at structure outlets should be
kept within these limits.
i
Ft./Sec.
Ft./Sec.
Ft./Sec.
i
Fine sand (noncolloidal)
1.50
2.50
1.50
2.00
Sandy loam (noncolloidal)
1.75
2.50
Silt loam (noncolloidal)
2.00
3.00
2,00
Ordinary firm loam
2.50
3.50
2.25
Fine gravel
2.50
5.00
3.75
Stiff clay (very colloidal)
3.75
5.00
3.00
.:Graded, loam to cobbles,
when noncolloidal
3.75
5.00
5.00
Graded, silt to cobbles,
when colloidal
4.00
5.50
5.00
'
Course gravel (noncolloidal)
4.00
6.00
6.50
From Soil
Conservation Service
' velocities in diversion ditches or at structure outlets should be
kept within these limits.
i
ACTUAL
OUTLET
VELOCITY
F.P.S.
6
8
10
12
14
16
18
20
22
24
26
28
30
TABLE III
APRON LENGTHS (LA) (IN FEET)
d - inches
15 18 21 24 27 30 33 36 42 48 54 60 66 72
3
3
3
3
3
4
4
4
4
4
5
5
5
5
3
4
4
4
4
5
5
5
6
6
6
7
7
7
4
5
5
5
6
6
6
6
7
7
8
8
9
9
5
5
6
6
7
7
7
8
8
9
10
10
11
11
6
6
7
7
8
8
9
9
10
10
11
12
12
13
7
7
8
8
9
9
10
10
11
12
13
13
14
15
8
8
9
10
10
11
11
12
13
13
14
15
16
16
8
9
10
11
11
12
12
13
14
15
16
17
18
18
9
10
11
12
12
13
14
14
15
16
17
18
19
20
10
11
12
13
13
14
15
16
17
18
19
20
21
22
11
12
13
14
15
15
16
17
18
19
21
22
23
24
12
13
14
15
16
17
17
18
20
21
22
23
25
26
13
14
15
16
17
18
19
19
21
22
24
25
26
27
SURFACE
LA
6D or 6d (As applicable)
RECEIVING CHANNEL
Definitions:
d = diameter of culvert
D = Depth of flow in outlet channel
LA = Length of Apron in feet, where less than 6D or 6d, extend
protection with rip -rap or other protection
Note: The primary purpose of the apron is to reduce scouring up
the channel at the outlet and not to reduce velocity to
acceptable levels. Velocity control is accomplished by
downstream channel design.
1
3.0
4.0
C 2.5
2.5
1
D 2.0
2.0
3.0
B 4.0
TABLE IV
5.0
Bare
3.5
4.5
GUIDE TO
SELECTION
OF VEGETAL
RETARDANCE
Sand,
silt
Average Length
Degree
1.5
Average Length
Degree
& Silt Loam
of
of
Clay Loam
of
of
Silty
Stand
Vegetation
Retardance
Stand
Vegetation
Retardance
'1
Good
Longer than 30"
A
Fair
Longer than 30"
B
Good
11 to 24"
B
Fair
11 to 24"
C
Good
6 to 10"
C
Fair
5 to 10"
D
Good
2 to 6"
D
Fair
2 to 6"
D
2"
E
Good
Less than 2"
E
Fair
Less than
Use this Table in conjunction with Table V to determine permissible
' ,velocities.
6
TABLE V
Permissible Velocity - Ft./Sec.
Vegetation
Retardance Poor Fair Good
B 3.0
3.0
4.0
C 2.5
2.5
1
D 2.0
2.0
3.0
B 4.0
4.0
5.0
Bare
3.5
4.5
Land
'
Sand,
silt
Sandy
Loam,
1.5
& Silt Loam
'
Silty
Clay Loam
2.0
Silty
Clay
Clay
2.5
'1
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TABLE V
Permissible Velocity - Ft./Sec.
Vegetation
Retardance Poor Fair Good
B 3.0
3.0
4.0
C 2.5
2.5
3.5
D 2.0
2.0
3.0
B 4.0
4.0
5.0
C 3.5
3.5
4.5
B 3.0 5.0 6.0
C 3.0 4.5 5.5
D 3.0 4.0 6.0
FIGURE I
r�ttN�� �qwl
i
'N�IIb vgW-e .. y•
I:I`,9�lu�.14
From Soil Conservation Service
Temporary mechanical erosion control that could be applied
to relatively small construction sites.
FIGURE II
From Soil Conservation Service
Various types of temporary erosion and sediment control
that could be applied to construction sites.
Ito
7fc
lqu
n Y s n tl 1
-71
r _
� t� A' N '..'"k���+ysY p by �( � : ,;.>kx, � '� f r,�•�•-..
� w//#I. }� '� .lya�>fff... A,. r a•�a fi �(7 �♦�.LY 7>`i� ,� „�`
i Jh .�r.�/ Cf f��2 Kp. �..r .�1 �_ Y•�'1�.. � r�.11'%.4 lam. ,� ��L�g
,F,1L 1 f' '•}Yf�l'ibi�
y1S lrtt'�!!fY r� f p1f{trl'� Sr
11
,,�+•,'cf .� '� `�./.trL�. ^R r:;•.' .�...5 rrt,'j��r��. �Yy�: •. .,
FIGURE IV
From Reference No. 1
Typical Sediment Basin - may be temporary during construction
or permanent.
I
0
'I
From Reference No. 1
Typical Sediment Basin - may be temporary during construction
or permanent.
GRAPH I
Velocities of runoff, generated by rainfall on various types of
ground cover, by slopes of land.
— —
90 r —1 r I ; j -i T r_
L I 1.. ; 1 I
1 I t r.7
50�1_.- IF_—
..' 451__-._-. -..t'-I--�� - '�'�_.�_.. --�...__-°
I — ( r �;, --;120
]]L---=-1 - - -- _
' 1 I i _I II I•I I OOH. � `. `C°I � ((�' ' --
20
1 1 C I 1 Q0
1 I 1 I 44 0 0" 1
7-7
—4.
_-
6IrI 1TT
1�I
I I iTt
P.L -6 "s r
II
, Y
1 I
I
I__
a o 000
VELOCITY IN FEET PER SECOND
From Soil Conservation Service
Example: Slope of land = 5%
Cultivated land, Straight Row (Overland Flow)
Velocity then = 2 feet per second
REFERENCES
The following reference is acceptable to the City of Iowa
City for use in preparing erosion and sedimentation plans.
Guidelines for Soil and Water Conservation in
Urbanizing Areas
Soil Conservation Service, 517 Southgate Avenue,
Iowa City, Iowa 52240. Price $2.90.
Iowa State Printing Division, Grimes State Office
Building, Des Moines, IA 50319.
`l RESOLUTION No. 75-1 2O(_�
RESOLUTION ADOPTING STANDARDS FOR PUi1LIC WORKS T;-0PaU iEiE:a'C
PROJECTS IW IOWA CITY, .IOWA.
WHEREAS, the City of Iowa Ci Ly, Iowa, p'urn ailL to thy: 1•:,w:: of the State of
Iowa has the power to hike or contract for public .imnrnvomentr, for the gc!nural
welfare of the citiz•vls of. Iowa City, Iowa, and
WHEREAS, the City Council upon the racomm�:ndation of Lite City l:ugin^_ar deems
it in the interest of the health, safety, and o:rlfare of Uvt ci.Lizens of, the
City of Iowa City, Iowa, to establish standards fur Public Worl:s improvcmants, and
WHEREAS, the Department of Public Works ha: devi.-;ed standards for planning,
designing and constructing Public Works improvements in Iowa City, Iowa
NOW THEREFORE BE IT HESCT.VED BY THE CITY COUNCIL. OF THE CITY OF IOWA CITY,
I01.•tA:
1. 'that the Proposed Design Standards for Public Woc1:s Inp'rovements
in Iowa City, Iowa, be adopted as the standard for aLl designing, planning
and construction of any and all Public 4:orks improvements in Iowa City, Iowa.
2. that copies of said standards be kept on file wi.Lh Hie City Clerk,.
It was moved by Brandt __ and ❑econded i,y __nav:idsen
that the Resolution as read be adapl:ed, and upon roll call there, wenn:
AYES: MAYS: Ali!;UNT:
X Drandt
X Czarnecki
X Davidson r
X deProsse
X Neuhauser
ATTEST,
: .L:'Gl!.[I• �l.I�-C..� _! __ /
` CITY CLERK`'
Passed Gild approved this 6 LI1 day of. , _ _ 1.1rty _ �. , 1975.
3565
c
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9
PROPOSED DESIGN STANDARDS FOR
PUBLIC WORKS IMPROVEMENTS
IN IOWA CITY, IOWA
CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
Revieed April, 1.975
.10
04 71 V
CITY OF IOWA CITY
DEPARTMENT OF PUBLIC WORKS
11EM0RANDUM
i. i7/lc.
DATE: April 2, 1975
TO: Neal Berlin, City Manager and City Council Members
FROM: Dick Plastino, Director of Public Works
RE: Design Standards
Attached is a final draft of the proposed Design Standards
for Iowa City, Iowa. Council had various questions regarding
cul-de-sacs. Inspection of present ordinances reveals that
the following definitions occur in Chapter 9.50 of the City Code.
LOCAL STREET - A street which provides for direct access
to abutting property and for the movement of local
traffic.
CUL-DE-SAC - A local street closed at one end with a turn-
around --a radial, circular or loop drive at the
termination end of a cul-de-sac permitting a vehicle
to reverse its direction while continuing its forward
movement.
Section 9.50.5 of the Code further states that 'local streets
shall be paved 28 feet and cul-de-sacs shall be paved with a 28
feet wide paving at the outer edge of which shall be 15 feet inside
the circumference of the right-of-way and the inner edge of which
shall be 43 feet from the circumference of the right-of-way. Cul-
de-sacs shall not exceed 900 feet in length. A cul-de-sac shall
be measured from the centerline of the street from which it commences
to the center of the turn -around."
The Code seems to make it clear that a cul-de-sac is a local
street with a loop on the end; therefore in the Design Standards
the reference to pavement width simply says local streets shall be
28 feet wide. In addition, we have a drawing on the next to the
last page of this document which shows a picture of a cul-de-sac.
We believe this makes the intent of both the City Code and the
Design Standards clear.
All reference to parking prohibition has been deleted. •It
is Public Works' belief that the purpose of the Design Standards
is to provide a working document for contractors, subdevelopers
and engineers involved with the physical facilities of the City.
A parking prohibition does not fit into this category and we strongly feel
that parking prohibition references should be handled in the Zoning
Ordinance and not in a document designed totally and specifically toward
physical design parameters.
Designards
-2- April 2, 1975
s� E
The Planning and Zoning Commission has reviewed the attached
document and consensus has been reached that the document is adequate
as shown. We are hopeful that Council will accept this document so
that it may become an established working guide for developers,
contractors, engineers and architects working in Iowa City.
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Department of Public Works
To: Developers, Contractors, Engineers, and Architects
working in Iowa City
Here for your easy reference, is a brochure setting forth
the design standards for Public Works improvements as they
apply here in Iowa City. We feel that attention to these
standards will result in less confusion and uncertainty on
your part while planning, designing and constructing these
facilities, as well as reducing the operating and maintenance
problems which the City of Iowa City encounters once the
facility is built and in use.
This booklet contains standards for streets and alleys,
sidewalks, water distribution systems, sanitary and storm
sewers, traffic signals and street lighting. It should be
pointed out.that these standards are by no means all
inclusive. For more detailed information please contact the
Engineering Division of the Department of Public Works
which is responsible for the implementation of these design
criteria.
Thank you for your cooperation. We hope you enjoy working
in Iowa City.
RES:db
Respectfully yours,
George R. Bonnett, P.E.
City Engineer
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TABLE OF CONTENTS
I. STREETS -------------------------------------- I -1--I-5
II. ALLEYS --------------------------------------- II-1--IT-2
III, SIDEWALXS------------------------------------ III -1
IV. DRIVEWAYS ------------------
V. WATER DISTRIBUTION SYSTEMS -
VI. SANITARY SEWERS ------------
VII. STORM SEWERS ---------------
VIII. TRAFFIC CONTROL ------------
IX. ROADWAY LIGHTING -----------
--------------- IV -1
--------------- V -1--V-2
--------------- VI-1--VI-4
--------------- VII-I--VII-3
--------------- VIII -1-- VIII -II
--------------- IX -1-- IX -2
Figure
1 -
Typical
Street Cross -Section
Figure
2 -
Typical
30" Curb S Gutter
Figure
3 -
Typical
Curb Cross -Section
Figure
4 -
Typical
Alley Cross -Section
Figure
5 -
Driveway'Diagram
Figure
6 -
Typical Manhole 6' or less in Depth
Figure
7 -
Typical Manhole 6' or more in Depth
Figure
8 -
Sanitary Drop Connection
Figure
9 -
Sanitary Riser
Figure
10
- Pipe Bedding
Figure
11
- Alley Catch Basin
Figure
12
- RA -3 Curb Intake
Figure'13
-
RA -4 Curb Intake
Figure
14 -
RA -5 Curb Intake
Figure
15 -
RA -6 Curb Intake
Figure
16 -
RA -7 Throat Extension
Figure
17 -
RA -8 Curb Intake
Figure
18 -
Typical Traffic Signal Location
Figure
19 -
Cul-de Sac Street
Figure
20 -
Typical Drop Curb for Sidewalks
SCCfION I
!J STRRHTS
1-1.0 Street Classification
1.1 All streets shall be classified according to their functional
use which are defined as follows:
Major Arterial - This type of street is a continuous route
providing for the expeditious movement of large volumes of
through traffic across the city and between high traffic
j7 generation points, and on which geometric design and traffic
�y control measures are used to facilitate the safe movement
of through traffic.
Minor Arterial - Provides for through traffic movement between areas
and across the city, and direct access to abutting property;
L' subject to the necessary control of entrances, exits, and
curb use so as to increase the capacity and improve the
safety characteristics of the street. .
Collector - This type of street system provides for the movement
of traffic between arterial routes and local streets, as
well as providing direct access to abutting property;
moderate amounts of low speed traffic, including some bus
traffic, can be cnrried on these streets.
L Local Residential - This type of street serves only as a means
of access to abutting residential property and is planned
to be a low speed, low traffic and short trip route.
H Local Commercial - A street or road providing access to businesses
or commercial property.
Industrial - A street or road providing access to manufacturing
plants or industrial facilities.
I-2.0 Traffic Lane Widths
2.1 The minimum desirable traffic lane width except for local residential shall
I-1
11 feet.
L'be
2.2 For major arterial streets and
industrial streets the
lane width
shall be 12 feet. This is due
to the heavy volume of
truck traffic
expected on these streets.
lig
2.3 It should be kept in mind that
in the design of local
streets
the number of lanes for moving
traffic will be a secondary con-
C.8
sideration.
r
2.4 Local streets shall be designated for a minimum of 28
foot wide
pavement back to back of curb.
I-1
fts
1-3.0 Separate Turn Lanes
3.1 Separate turning lanes may be included on arterial streets but will,
as a rule, not he found on other streets. Where separate turning
lanes are required on the basis of a capacity analysis of the inter-
section, then a width of 12 feet will be used for major arterial
streets where substantial truck traffic is involved, and 11 feet
in width for minor arterial streets.
1-4.0 Parking Lane Width
4.1 Parking lanes will not be provided on arterial streets.
4.2 Where provided for on local residential and collector streets,
the parking lane shall be 8 feet in width.
4.3 Where provided for within the commercial business district, parallel
parking lanes shall be 10'feet in width and angle parking Zones shall
be 9 feet in width.
I-5.0 Right -of -Way Width
5.1 The right-of-way will be 80 feet in width for arterial streets,
66 feet for collector and industrial streets and 50 feet for
local streets. This width does not provide for medians or
boulevards that might he constructed within the right-of-way.
S.2 If medians or boulevards are to he constructed then additional
right-of-way may be required depending upon the design and width
of the median.
1-6.0 Shoulders
6.1 Where no curb and gutter is constructed there shall be a 10 foot
gravel or rock shoulder.
I-7.0 Medians
7.1 Generally speaking, medians will be found only in arterial streets.
The width may vary anywhere from a minimum of 16 feet to a maximum
width of 30 feet. At intersections, medians may be used to pro-
vide for separate left turn storage lanes.
7.2 Medians or boulevards constructed as part of local streets shall
conform to the same design standards as set forth for arterial
streets.
I-8.0 Street Grad
8.1 The maximum street grade for arterial and industrial streets shall
be 8%, for collector streets 10% and local streets 12%.
I-2
8.2 The minimum grade for gutter drainage will he 0.5%,
I-9.0 Pavement Cross Section
9.1 The pavement cross section for all pavements will be a 2% parabolic
crown. The cross section is as shown in Figure I. This cross
slope is equivalent to 1/4 inch per foot.
I-10.0 Design Speed
C 10.1 A design speed will be used in establishing the geometric features
for arterial streets only. For arterial streets the design speed
will be assumed to be 35 miles per hour. This highway design
� speed shall be used to establish features such as the supereleva-
lii tion rate, critical length of grade, intersections, curbs, etc.
EI-11,0 Curb and Gutter Section
11.1 A curb and gutter cross section shall consist of a 6 inch
vertical curb with a 30 inch concrete gutter which includes the
curb. The design shall he as shown in Figure 2.
11.2 Where the street paving is integral Portland Cement concrete then
there shall be no separation between the curb and gutter section
and the paving. The design shall be as shown in Figure 3.
11.3 On cul-de-sacs and loop streets located in local residential
areas a 6 inch roll -type curb will be permitted as shown in
Figure 3.
I-12.0 Pavement Material and Thickness
12.1 The pavement slab may be constructed of the following materials:
12.1.1 Non -reinforced Portland Cement concrete conforming to
the Iowa State Highway Commission C-3 mix or M-3 mix
as applicable.
12.1.2 Full depth Asphaltic Concrete hot mix conforming to the
Iowa State Highway Commission standards for Type "B"
base and 1 3/9" minimwn thickness Type "A" surface course.
All asphaltic concrete streets shall have Portland Cement
concrete curb and gutter.
Deleted reference to rolled atone base
12.2 The required pavement thickness in inches is as outlined in the
following table:
1-3
M Portland Cement Full Depth Deleted Rolled
Concrete Asph. Concrete Stone Base Alternative
Ee Major Arterial 10" 1211"
Minor Arterial 9 " 11
!v Industrial 8 10
*Thickness requirements
Collector R 9� for arteriaZa are intended
as a guide only. Specific
Residential 7 8� projects will be designed
on the basis of eoiZ con-
ditions and projected
j+ i-13,0 Cross Slope (Sidewalk to Curb) traffic loading.
13.1 The area between the sidewalk and curb will normally be grass and
will slope at the rate of 1/3 inch per foot from the sidewalk towards
4: the curb. This will provide for the drainage of land within the
street right-of-way to the gutter,
13,2 As a rule a minimum space, primarily for storage of snow, will be
4 feet between the sidewalk and curb. However, on arterial
streets it may be necessary to reduce this figure,
rg I-14.0 Corner Radius
14.1 The corner radius at intersections will depend on the functional
classification of the intersecting streets. The following
criteria shall apply:
Arterial - Arterial 30.0 feet
Arterial - Collector 25.0 feet
Arterial - Local 17.5 feet
Arterial - Industrial 25.0 feet
(, Collector - Collector 25.0 feet
rL Collector - Local 17.5 feet
►r
Local - Local 17.5 feet
.� I-15.0 Street Capacity
15.1 The design hour volume of traffic (DHV) used in the design of
arterial streets will he the 30th highest hourly volume, As a
rule, the design hour volume will be considered to be approximately
10 to 12% of the average daily traffic for a 24-hour period.
�a
r
I-4
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15.2 Design criteria for arterial streets shall be in accordance with
the Highway Capacity Manual published in 1965 by the Highway
Research Board and shall he equivalent to "Level of Service = C".
I-16,0 Side Clearance
16,1 No obstructions of any type, including traffic control devices,
shall be placed closer than 2 feet to the back edge of the curb,
I-17,0 Open Ditches
17.1 Where a curb and gutter section is not required and open ditches
are provided for drainage, the minimum ditch grade shall be 1.0%
and the maximum grade shall be 3.0%. In addition, it will be
necessary to place a concrete pipe through all drive approaches
constructed through the drainage ditch. The size pipe required
will be a function of the area to be drained.
17.2 The cross slope shall he a desirable 4 to I slope with a maximum
permitted slope of 2 to 1,
1-18.0 Acceleration - Deceleration Lanes
18.1 As a general rule, speed change lanes such as acceleration and
deceleration lanes will not be added to pavements except where
industrial streets intersect with major arterial streets and
heavy truck traffic warrants the construction of such lanes.
I-19.0 Subgrade Requirements
19.1 The subgrade shall be scarified to a depth of 6 inches below the
pavement, and compacted to 90% of Modified Proctor Density for
Portland Cement concrete pavement and to 95% of Modified Proctor
Density for Asphaltic Cement concrete pavement.
19.2 The subgrade in fill shall be 90% of Modified Proctor Density
except for the top 6 inches which shall meet the requirements for
the appropriate surface material. .
I-5
4
iq (y
SECTION 11
ALLUS
IT -1.0 Alley
Classification
1.1
Residential Alley
- A route located between local roads used
primarily for access
to the rear of residential property.
r
W
1.2
Commercial Alley -
A route located between commercial streets
used primarily for
access to the rear of commercial property.
TI -2.0 Pavement Width
2.1
Residential alleys
shall have a pavement width of 16 feet.
2.2
Commercial alleys
shall have a pavement width of 20 feet.
II -3.0 Right -of -Way Width
3.1 The right-of-way shall be 20 feet for all alleys.
11-4.0 Alley Grades
4.1 The maximum grade for alleys shall be 144 for residential and
104 for commercial or industrial alleys. The minimum grade
shall be 0.54 for all types of alley.
II -5.0 Pavement Cross -Section
S.1 The pavement shall have a 44 inverted crown cross-section, This
will be as shown in Figure 4.
II -6.0 Pavement Material and Thickness
6.1 The pavement slab may be constructed of the following materials:
6.1.1 Non -reinforced Portland Cement concrete conforming to
the Iowa State Highway Commission C-3 mix or M-3 mix
as applicable.
6.1,2 Full depth Asphaltic Concrete hot mix conforming to the'
Iowa State Highway Commission standards for Type "B"
base and 1 3/4" minimwn thiokneas Type "A" surface aouree.
Deleted reference to RoZZed Stone Base Alternative
6.2 The required pavement thickness in inches is as outlined below:
Portland Cement full Depth Deleted Reference to Rolled
Concrete Asph. Concrete Stone Baae Alternative
601 711
6.3 There will be no curb and gutter sections built as part of alleys.
Ii -7.0 Subgrade Requirements
7.1 The subgrade shall be scarified to a depth of 6 inches below the
pavement, and compacted to 90% of Modified Proctor Density for
Portland Cement concrete pavement and to 95% of Modified Proctor
Denaity for Asphaltic Cement concrete pavement.
7.2 The aubgrade in fill shall be 90% of Modified Proctor Density
except for the top 6 inchee which shall meet the requiremente for
the appropriate eurface material.
II -2
SECTION III
LSIDEWALKS
2.3 The street edge of the sidewalk surface shall be located above
the curb 1/3 inch for every foot horizontally from the curb.
M-3.0 Material and 'thickness
3,1 Sidewalks shall he constructed of four inch thick non -reinforced
Portland Cement concrete conforming to the Iowa State Highway
Commission C-3 mix.
3.2 Sidewalks crossing driveways shall be constructed of 6 inch
non -reinforced Portland Cement concrete conforming to the Iowa
State Highway Commission C-3 mix,
III -4.0 Curb Ramps
4.1 All sidewalks shall provide a curb ramp for accommodation of the
handicapped at all intersections.
4.2 Curb ramps shall be located in line with the public sidewalk as
shown in Figure 20.
4.3 Curb ramps shall be at least 48 inches wide and should be sloped
at not greater than one inch of rise per twelve inches lineal -
distance. A slope no greater than one inch of rise per eight
inches lineal distance may be used where necessary.
4.4 Ramps shall be sloped from the sidewalk intersection to the curb
as shown in Figure 20.
III -1.0 Width
1,1
Sidewalks shall be a minimum
of 4 feet in width except in the
Central Business District or
in other areas specifically
.,
rL'
approved by the City where the width may be greater.
1.2
Sidewalks shall be located 1
foot from the property line.
I11-2.0 Cross Slope
2.1
All sidewalks shall slope to
the street at a rate of 1/4 inch
per foot.
�a
2.2
Sidewalks shall be required on both sides of all streets except
►►.•
industrial streets,
2.3 The street edge of the sidewalk surface shall be located above
the curb 1/3 inch for every foot horizontally from the curb.
M-3.0 Material and 'thickness
3,1 Sidewalks shall he constructed of four inch thick non -reinforced
Portland Cement concrete conforming to the Iowa State Highway
Commission C-3 mix.
3.2 Sidewalks crossing driveways shall be constructed of 6 inch
non -reinforced Portland Cement concrete conforming to the Iowa
State Highway Commission C-3 mix,
III -4.0 Curb Ramps
4.1 All sidewalks shall provide a curb ramp for accommodation of the
handicapped at all intersections.
4.2 Curb ramps shall be located in line with the public sidewalk as
shown in Figure 20.
4.3 Curb ramps shall be at least 48 inches wide and should be sloped
at not greater than one inch of rise per twelve inches lineal -
distance. A slope no greater than one inch of rise per eight
inches lineal distance may be used where necessary.
4.4 Ramps shall be sloped from the sidewalk intersection to the curb
as shown in Figure 20.
SECTION IV
DRIVEWAYS
IV -1.0 Driveway Material and Thickness
1.1 The driveway slab extending from the street to private property
shall be constructed of non -reinforced Portland Cement concrete
conforming to the Iowa State Highway Commission C-3 or M-3 mix 6
inches in thickness.
1.2 All driveways shall have one inch preformed expansion at front
and back of sidewalk.
IV -2.0 Driveway Width
2.1 Maximum curb opening along any street shall be 42 feet.
2.2 Except as noted in 2,3 below, the maximum driveway width shall
not exceed 24 feet as measured along the street side of the
sidewalk line,
2.3 On streets marked as permanent state or federal highway roads,
a driveway may he constructed with a maximum width of 36 feet
as measured along the street side of the sidewalk line.
1V-3.0 Driveway Location
3.1 No portion of a driveway except the curb return shall be
constructed within 20 feet of a corner and in no case closer than
3 feet to the property line as extended. See Figure 5 for
typical driveway locations.
3.2 Where more than one driveway approach on a street front serves
a single parcel of land, there shall be at least 20 feet of
space between driveways.
IV -1
L.
I
C
SECTION V
WATER msTRilU1TION SYSTEM
V-1.0 Pipe Standards
1.1 All mains shall be a minimum of 6 inches in diameter. A larger
size may be required depending upon water demand and fire flows.
1.2 All water mains shall he constructed of Class 22 pipe or if
greater than 12 inches in diameter, Class 23 cast iron pipe.
The use of ductile pipe will be permitted in certain instances
and required where there is a possibility of settlement of the
pipe such as where a water main may cross over an old sewer
trench or where a main may be located under some type of structure.
1.3 Either mechanical joint or push -on joints will be permitted.
L+
V-2.0 System Design
2.1 A cast iron pipe coefficient of C - 100 in the Hazen -Williams
formula shall be used for original design.
2.2 All mains shall be looped except for short runs to serve cul -de -
.sacs where the distance is less than 1,000 feet.
2.3 Theist blocks shall be designed and used whenever there is a
change in direction (either horizontal or vortical), change of
diameter, or at dead ends. The thrust block shall be concrete
with the, concrete formed between the fitting and the undisturbed
trench wall.
2.4 Valves shall be installed as follows: 3 at each cross connection,
2 at each tee connection, and one on each hydrant branch. The
frequency of valve installation shall be such that in the,event
of a main break, not more than 800 feet of main in residential
areas or 400 feet of main in commercial areas will be shut off
to isolate the leak.
2.S Fire hydrant spacing will be on an average distance of 800 feet
i' which will generally mean one hydrant for every two blocks in
L residential areas and one hydrant per block in commercial and.
industrial areas.
L
2.6 Water mains will not be laid under a building.
2.7 We ter mains may be laid in pedestrian malls or in alleys.
2.8 No mains shall pass through or come into contact with any part
of a sewer manhole.
V-1
a) The bottom of the water main is at least 18 inches above
the top of the sewer; or
V-3.0 Fire
Flows in Commercial and Industrial Districts
3.1
The distribution system shall be designed so that the minimum
pressure at any junction during• maximum fire flow will be 20
shall be constructed of materials and with joints that are
psi.
d
3.2
High service pumping will he available during the fire demand
backfilling.
with an effective pressure of 105 psi at the Water Treatment
or house sewers shall be laid to provide a separation of at
Plant.
L
4.5 Under unusual conditions where 18 inches vertical separation as
(,
V-4.0 Installation of Mains
construction shall be used:
Water mains shall have a minimum S feet
L4.1
L
cover of measured
b) Water mains passing under sewers shall, in addition, be
protected by providing:
from the top of the pipe to the ground to prevent freezing.
1) a vertical separation of at least 18 inches between the
4.2
Under normal conditions water mains shall be laid at least
2) adequate structural support for the sewers to prevent
10 feet horizontally from any sanitary sewer, storm sewer or
excessive deflection of joints and settling on and
sewer manhole. The distance shall be measured edge -to -edge
�d
of pipe.
V-2
4.3
Under unusual conditions a water main may be laid closer to a
F1
storm or sanitary sewer provided that:
a) The bottom of the water main is at least 18 inches above
the top of the sewer; or
b) where this vertical separation cannot be obtained, the sewer
shall be constructed of materials and with joints that are
equivalent to water main standards of construction and
d
shall be pressure tested to assure watertightness prior to
backfilling.
4.4 Under normal conditions water mains crossing storm, sanitary
or house sewers shall be laid to provide a separation of at
�+
least 18 inches between the bottom of the water main and the
top of the sewer.
4.5 Under unusual conditions where 18 inches vertical separation as
(,
described in the above section cannot be maintained, the following
construction shall be used:
' to
a) Sewers passing over or under water mains should be constructed
L
of materials described in Item V-1.2.
b) Water mains passing under sewers shall, in addition, be
protected by providing:
1) a vertical separation of at least 18 inches between the
bottom of the sewer and the top of the water main; or
2) adequate structural support for the sewers to prevent
-r1
excessive deflection of joints and settling on and
breaking the water mains; or
F.i
`
V-2
I
3) that the length of the water pipe be centered at the
point of crossing so that the joints will be equidistant
and as far as possible from the sewer.
V-5.0 Proper Backfilling
5.1 Where the water line crosses an existing or proposed sidewalk
or street, the trench shall be backfilled with a suitable
material compacted to 90% of Modified Proctor Density.
V-3
14.
SECTION VI
�. SANITARY SEWERS
LVI -2.0 Design Flaws
2.1 All sewers shall have a slope that will give a mean velocity,
when flowing full, of not less than 2.0 feet per second based
on Kutters formula using an "N" value of 0.013.
2.2 Sewage flows will be based on peak rates with the pipe flowing
full which will be taken as approximately 2.5 times the normal
flow. Infiltration will be allowed for by the addition of 100
gallons per capita per day.
L2.3 The peak wet weather flows for various usage are as follows:
t51 a) Dwellings
I
1) Single Family
(100 gal/cap day) x 2.5(peak factor)+ 100 gal/cap day
(infiltration) = 350 gpcpd
2) Mobile Homes
(50 gal/cap day) x 2.5 (peak factor)+ 100 gal/cap day 225 gpcpd
(infiltration)
3) Milti Family
(75 gal/cap day) x 2,5(peak factor)+ 100 gal/cap day
(infiltration)
4) Motels and Hotels
(50 gal/cap day) x 2,5(peak factor)+ 100 gal/cap day
(infiltration)
b) Schools
• 287 gpcpd
225 gpcPdJ
1) Without , cafeteria or showers
(10 gal/cap day) x 2.5 (peak factor)+ 100 gal/cap day a 125 gpcpd
(infiltration)
VI -I
VI -1.0 Type
of Flows Permitted
d!
1.1
All sewage flows shall be based on the future projected
land use
for the area under consideration.
r
6a
1.2
Sanitary sewers and storm sewers shell he koptseparate.
No
combined sewers shall be constructed.
L1.3
Nothing shall be permitted in the sanitary sewers except
sewage.
This means that footing drains, downspouts, swap pompe,
etc. mill
not be allowed to discharge into the sewer system. Air
conditioning
condensation water is aZZowed in the sanitary sewer.
LVI -2.0 Design Flaws
2.1 All sewers shall have a slope that will give a mean velocity,
when flowing full, of not less than 2.0 feet per second based
on Kutters formula using an "N" value of 0.013.
2.2 Sewage flows will be based on peak rates with the pipe flowing
full which will be taken as approximately 2.5 times the normal
flow. Infiltration will be allowed for by the addition of 100
gallons per capita per day.
L2.3 The peak wet weather flows for various usage are as follows:
t51 a) Dwellings
I
1) Single Family
(100 gal/cap day) x 2.5(peak factor)+ 100 gal/cap day
(infiltration) = 350 gpcpd
2) Mobile Homes
(50 gal/cap day) x 2.5 (peak factor)+ 100 gal/cap day 225 gpcpd
(infiltration)
3) Milti Family
(75 gal/cap day) x 2,5(peak factor)+ 100 gal/cap day
(infiltration)
4) Motels and Hotels
(50 gal/cap day) x 2,5(peak factor)+ 100 gal/cap day
(infiltration)
b) Schools
• 287 gpcpd
225 gpcPdJ
1) Without , cafeteria or showers
(10 gal/cap day) x 2.5 (peak factor)+ 100 gal/cap day a 125 gpcpd
(infiltration)
VI -I
2) With , cafeteria and showers
(20 gal/cap day) x 2.5(peak factor)+ 100 gal/cap day
p'
(infiltration) = 150
gpcpd
c) Office Buildings
(10 gal/cup day) x 2.5(peak factor)+ 100 gal/cap day
(infiltration) = 125
gpcpd
d) Light Industrial
L
(14,000 gal/acre day) x 2.5(peak factor)+ 1200 gal/acre day
(infiltration) 36,200
gpapd
gpcpd
= gallons per capita per day
gpapd
= gallons per acre per day
2.4
Where velocities greater than 15 feet per second are .attained special
provision shall be made to protect against displacement, erosion
or shock.
,1
2.5
When a smaller sewer joins a larger one, the invert of the larger
LL.•
sewer shall be lowered sufficiently to maintain the same energy
gradient. An approximate method for securing these results is to
�e
place the 0.8 depth point of both sewers at the same elevation.
VI -3.0 Pipe
Standards
3.1
Extra strength vitrified clay pipe shall be used for sanitary sewers
15 inches in diameter or less. Reinforced concrete pipe shall be
.,
L
used for sewers larger than 15 inches. Special conditions may
require the use of reinforced concrete pipe for diameters smaller
than 15 inches or the use of cast iron pipe. Pipe will be of
sufficient strength to support the superimposed loads.
3.2
All sanitary sewers shall be a minimum of 8 inches in diameter.
3.3
In general, sanitary sewers shall be sufficiently deep so as to
receive sewage by gravity from basements as well as to prevent
freezing.
3.4
3.4
Sanitary sewer joints shall be designed to minimize infiltration
and to prevent the entrance of roots. Allowable infiltration
shall not exceed 500 gallons per inch diameter per mile per day.
l�
3.5.
A 4 -inch diameter service wye of a material equal in quality to
the main sewer shall be installed wherever a residential service
connection is anticipated. House services connected with toes
are not acceptable.
VI -4.0 Manhole Standards
4.1
Manholes shall be'installed as follows:
a) at the end of each line;
VI -2
4.5 Standard manholes, drop connection and riser are shown in Figures
6, 7, 8 and 9.
VI -5.0 Protection of Water Supplies
5.1 There shall be no physical connection between a public or private
potable water supply system and a sewer appurtenance which would
permit the passage of any sewage or polluted water into the potable
supply.
5.2 Whenever possible, sewers should be laid at least 10 feet,'
horizontally, from any existing or proposed water main. Should
local conditions prevent a lateral separation of 10 feet, a sewer
may be laid closer than 10 feet to a water main if:
a) it is laid in a separate trench;
h) it is laid in the same trench with the water mains located
at one side on a bench of undisturbed earth; or
c) in either case the elevation of the crown of the sewer is
at least 18 inches below the invert of the water main.
5.3 5.3 Whenever sewers must cross under water mains, the sewer shall be
laid at such an elevation that the top of the sewer is at least
18 inches below the bottom of the water main.
5.4 When the elevation of the sewer cannot be buried to meet the above
requirements, the water main shall he relocated to provide this
separation or reconstructed with slip-on or mechanical -joint
cast iron pipe, for a distance of 10 feet on each side of the
sewer. One full length of water main should be centered over the
sewer so that both joints will be as far from the sewer as possible.
VI -3
b) at all changes in grade, size, or alignment;
j,
c) at all intersections; and
d) at distances not greater than 400 feet for sewers 15 inches
or less in diameter and 600 feet for sewers 18 inches to
K
30 inches. Greater spacing may be permitted in larger
sewers and in those carrying a settled effluent.
C
4.2 A drop pipe shall be provided for a sewer entering a manhole at
an elevation of 24 inches or more above the manhole invert. Where
the difference in elevation between the incoming sewer and the
L
manhole invert is less than 24 inches the invert shall be filleted
to prevent solids deposition.
4.3 The minimum diameter of manholes shall be 48 inches. The minimum
diameter of the opening at the top of the manhole shall be 23
inches.
4.4 The flow channel through sanitary sewer manholes shall be made
w
to conform in shape and slope to that of the sewers.
4.5 Standard manholes, drop connection and riser are shown in Figures
6, 7, 8 and 9.
VI -5.0 Protection of Water Supplies
5.1 There shall be no physical connection between a public or private
potable water supply system and a sewer appurtenance which would
permit the passage of any sewage or polluted water into the potable
supply.
5.2 Whenever possible, sewers should be laid at least 10 feet,'
horizontally, from any existing or proposed water main. Should
local conditions prevent a lateral separation of 10 feet, a sewer
may be laid closer than 10 feet to a water main if:
a) it is laid in a separate trench;
h) it is laid in the same trench with the water mains located
at one side on a bench of undisturbed earth; or
c) in either case the elevation of the crown of the sewer is
at least 18 inches below the invert of the water main.
5.3 5.3 Whenever sewers must cross under water mains, the sewer shall be
laid at such an elevation that the top of the sewer is at least
18 inches below the bottom of the water main.
5.4 When the elevation of the sewer cannot be buried to meet the above
requirements, the water main shall he relocated to provide this
separation or reconstructed with slip-on or mechanical -joint
cast iron pipe, for a distance of 10 feet on each side of the
sewer. One full length of water main should be centered over the
sewer so that both joints will be as far from the sewer as possible.
VI -3
PRO
VI -6.0 Proper Backfilling
a 6.1 Where the sewer crosses an existing or proposed sidewalk or street,
the sewer trench shall he backfilled with a suitable material
compacted to 90% modified Proctor Density,
6.2 Normally the pipe shall be Class "C" bedded with hand tamping
around the lower half of the pipe. If severe sub -grade conditions
are encountered the Engineer shall direct Type "B" bedding to be
used. Class "C" and Class "B" bedding is as shown in Figure 10.
VI -4
0
ra�
4
Y
e�
a
1
L
L'
1
III
n.
rl;
r
iia
VI -4
0
�n
{� SECTION VII
STORM SEWERS
VII -1.0 Design Flows
1.1 Storm water flows shall be based on the "Rational Formula",
Q • CIA where C is the coefficient of runoff, I is the rain
intensity in inches per hour, and A is the area in acres.
1.2 Depending upon the area through which the storm sewer will be
{3 constructed the sewer will be designed for a 5 year storm. In
L high risk areas the storm sewer may be designed for a 10 year
storm.
114
It
1.3 All sewers shall have a slope that will give a mean velocity,
when flowing full, of not less than 2.0 feet per second based
on Kutters formula using an "N" value of 0.013.
1.4 Where velocities greater than 15 feet per second are attained
special provision shall be made to protect against displacement,
erosion or shock.
VTI -2.0 Inlet and Pipe Design Standards
2.1. Inlets and pipes shall be located and sized so that the following
conditions are met:
a) For a 5 year storm:
1) Streets, except for arterials, shall have one 12 -
foot traffic lane free of storm water flowing or
ponded in the gutter. Arterial streets shall have
two traffic lanes free of storm water.
2. Approximately 80% of aZZ storm mater from a street
above an intersection shaZZ be intercepted.
3) Accesses to the buildings along pedestrian malls shall
be free of storm water.
4) Storm water from a pedestrian mall shall not flow
across the sidewalks at either end of the mall.
b) The final design shalt be checked to ensure that in.a.50
year storm the depth of water in any street, alley, or
pedestrian mall will not exceed the level at which it
would flow over the curb or edge of slab of that street,
alley or pedestrian mall.
2.2 Curb type inlets shall be used in streets. Grate type inlets shall
be used in alleys and pedestrian malls. The types of inlets to
be used are shown in Figures 11, 12, 13, 14, 15, 16 and 17.
VII -1
V1I-3.0 Pipe Standards
3.1 Storm sewer pipe will he reinforced concrete pipe unless special
conditions require the use of cast iron pipe. The pipe will be
a minimum of 2,000 0 strength to support superimposed loads.
^' 3.2 All storm sewer pipe shall be a minimum of 12 inches in diameter.
Pf
ISI
"
V11-4.0 Manhole Standards
L
4.1
Manholes shall be installed as follows:
fs
�•
a) at the end of each line;
b) at all changes in grade, size or alignment except for
sewers 30 inches or greater in diameter which may he
laid with changes in alignment without manholes;
Lc)
at all intersections; and
d) at distances not greater than 400 feet for sewers 15
inches or less in diameter and 600 feet for sewers 18
.,
6
inches to 30 inches. Greater spacing may be permitted
in larger sewers and in those carrying a settled effluent.
4.2
The minimum diameter of manholes shall be 48 inches. The minimum
diameter of the opening at the top of the manhole shall be 23
inches.
4.3
The flow channel through storm sewer manholes shall he made to
conform in shape and slope to that of the sewers.
4.4
Standard manholes are shown in Figures 6 and 7.
4.5
When a smaller sewer joins a larger size pipe, the invert of the
L
larger sewer should be lowered sufficiently to maintain the same
energy gradient. An approximate method for securing this result
is to place the 0.8 depth point of both sewers at the same ele-
vation.
a,
VII -5.0 Protection of Water Supplies
5.1
There shall be no physical connection between a public or private
potable water supply system and a sewer, or appurtenance thereto
(„
which would permit the passage of any sewage or polluted water
into the potable supply.
4;
5.2
Whenever possible, sewers should be laid at least 10 feet, horizontally,
from any existing or proposed water main. Should local conditions
prevent a lateral separation of 10 feet, a sewer may be laid closer
l
than 10 feet to a water main if:
a) it is laid in a separate trench;
E
V11-2
9
b) it is laid in the same trench with the water mains located
at one side on a bench of undisturbed earth; or
c) in either case the elevation of the crown of the sewer is
at least 18 inches below the invert of the water main.
5.3 Whenever sewers must cross under water mains, the sewer shall be
laid at such an elevation that the top of the sewer is at least
18 inches below the bottom of the water main.
5.4 When the elevation of the sewer cannot be buried to meet the
above requirements, the water main shall be relocated to provide
this separation or reconstructed with slip-on or mechanical -joint
cast iron pipe, for a distance of 10 feet on each side of the
sewer. One full length of water main should be centered over
the sewer so that both joints will be as far from the sewer as
possible.
VII -6.0 Proper Backfilling
6.1 Where the sewer crosses an existing or proposed sidewalk or
street, the sewer trench shall be backfilled with a suitable
material compacted to 90% of Modified Proctor Density.
6.2 Normally the pipe shall be Class "C" bedded with hand tamping
around the lower half of the pipe. If severe sub -grade conditions
are encountered the Engineer shall direct Class "B" bedding to be
used. Class "B" and Class "C" bedding are as shown in Pigure 10.
6.3 If granular material is used for backfilling all storm seiner
joints shall be seated with asphaltic material.
VII -7.0 Requirements for Storm Sewer
7.1 All storm drainage will normally be carried in an enclosed storm
sewer. Open channel flow is permitted only under special circum-
stances and with specific approval of the City Engineer.
VII -3
I
2.1 The aspect of all signal lenses, except in pedestrian signals,
shall be circular. There shall be two sizes for lenses, B
inches and 12 inches nominal diameter.
2.2 Twelve -inch lenses normally should be used:
2.2.1 For intersections with g5 percentile approach speeds exceeding
40 mph,
2.2.2 For intersections where signalization might be unexpected,
2.2.3 For special problem locations, such as those with conflicting
or competing background lighting.
2.2.4 For intersections where drivers may view both traffic con-
trol and lane -direction -control signs simultaneously.
2.2.5 For all arrow indications.
Arrows shall be pointed vertically upward to indicate a straight -
through movement and in a horizontal direction to indicate a
turn at approximately right angles. When the angle of the turn
is substantially different from a right angle, the arrow should
be positioned on an upward slope at an angle approximately equal
to that of the turn.
Each arrow lens shall show only one arrow direction. The arrow'
shall be the only illuminated part of the lens visible.
In no case shall letters or numbers be displayed as part of a
vehicular signal indication.
"IL 4i'Aft
SECTION VIII
TRAFFIC CONTROL SIGNALS
VIII-1.0 Number of Lenses per Signal Face
1.1 Each signal face, except in pedestrian signals, shall have at
least three lenses, but not more than five. The lenses shall
be red, yellow or green in color, and shall give a
arrow type of indication. Allowable
circular or
exceptions to
the above are:
1.1.1 Where a single section green arrow lens is
used alone to
indicate a continuous movement.
1.1.2 Where one or more indications are repeated
for reasons of
safety or impact.
VIII-2.0 Size and Design of Signal Lenses
2.1 The aspect of all signal lenses, except in pedestrian signals,
shall be circular. There shall be two sizes for lenses, B
inches and 12 inches nominal diameter.
2.2 Twelve -inch lenses normally should be used:
2.2.1 For intersections with g5 percentile approach speeds exceeding
40 mph,
2.2.2 For intersections where signalization might be unexpected,
2.2.3 For special problem locations, such as those with conflicting
or competing background lighting.
2.2.4 For intersections where drivers may view both traffic con-
trol and lane -direction -control signs simultaneously.
2.2.5 For all arrow indications.
Arrows shall be pointed vertically upward to indicate a straight -
through movement and in a horizontal direction to indicate a
turn at approximately right angles. When the angle of the turn
is substantially different from a right angle, the arrow should
be positioned on an upward slope at an angle approximately equal
to that of the turn.
Each arrow lens shall show only one arrow direction. The arrow'
shall be the only illuminated part of the lens visible.
In no case shall letters or numbers be displayed as part of a
vehicular signal indication.
IVIII -3.0 Number and Location of Signal Faces
Il
TIM
3.1 The visibility, location and number of signal faces for each
approach to an intersection or a mid -block crosswalk shall be
as follows:
3.1.1 A minimum of two signal faces for through -traffic shall
be provided and should he continuously visible from a
point at least the following distances in advance of
and to the stop line, unless physical obstruction of
their visibility exists:
85 Percentile Minimum Visibility
Speed Distance (Ft.)
20 100
25 175
30 250
35 325
40 400
45 475
3.1.2 Where physical conditions prevent drivers from having a
continuous view of at least two signal indications as
specified herein, a suitable sign shall be erected to
warn approaching traffic. It may be supplemented by a
Hazard Identification Beacon. A beacon utilized in this
manner may be interconnected with the traffic signal con-
troller in such a manner as to flash yellow during the
period when drivers passing this beacon, at the legal
speed for the roadway, may encounter a red signal upon
arrival at the signalized location.
3.1.3 A single signal face is permissible for the control of
an exclusive turn lane. Such a signal face shall be in
addition to the minimum of two signal faces for through -
traffic. When the indications of a separate signal face
or faces controlling an exclusive turn lane will also be
visible to traffic with other allowable movements, a
sign LEFT (or RIGHT) TURN SIGNAL shall be located adjacent
to such signal face. When the face consists entirely of
arrow indications, such a sign is not required.
3.1.4 Except where the width of the intersecting street or other
conditions make it physically impractical, at least one
and preferably both of the signal faces required by
paragraph 3.1.1 above shall be located not less than 40
feet nor more than 120 feet beyond the stop line. Where
both of the signal faces required by paragraph 3.1.1 above
are post -mounted, they shall both be on the far side of
the intersection, one on the right and one on the left or
on the median island if practical. The signal face re-
quired by paragraph 3.1.3 above shall conform to the some
location requirements as the signal faces required by
paragraph 3.1.1 to the extent practical.
3,1.5
Except where the width of the intersecting street or
other conditions make it physically Impractical, at
least one and preferably both of the signal faces re-
quired by paragraph 3.1.1 above shall be located between
g
two lines intersecting with the center of the approach
lanes at the stop line, one making an angle of approximately
20 degrees to the right of the center of the approach
extended, and the other making an angle of approximately
20 degrees to the left of the center of the approach
extended,
®
SI
3,1.6
Near -side signals should be located as near as practicable
to the stop line.
3.1.7
Where a signal face controls a specific lane or lanes of
approach, its transverse position should be unmistakably
in line with the path of that movement.
.3.1.8
Required signal faces for any one approach shall be not
less than eight feet apart measured horizontally between
centers of faces.
3.1.9
When the nearest signal face is more than 120 feet beyond
the stop line, a supplemental near side signal indication
lk
shall he provided.
3,1.10
A signal face mounted on a span wire or mast arm should
he located as near as practicable to the line of the driver's
normal view.
3.1.11
Supplemental signal faces should be used when an engineering
study has shown that they are needed to achieve both advance
and immediate intersection visibility. When used, they
should be located to provide optimum visibility for the
u
movement to be controlled. The following limitations
apply:
a. Left turn arrows shall not be used in near -right faces.
b. Right turn arrows shall not be used in far -left faces.
A far -side median mount signal shall be considered as
a far -left signal for this application.
At signalized mid -block crosswalks, there should be at
least one signal face over the traveled roadway for each
approach. In other respects, a traffic control signal at
a mid -block location shall meet the requirements set forth
herein.
3
VIII -3
VIII -4.0 Height of Signal Faces
4.1 The bottom of the housing of a signal face, not mounted over a
roadway, shall not be less than 8 feet nor more than 15 feet
above the sidewalk or, if none, above the pavement grade at the
center of the highway as shown in Figure 18.
i•
!! The bottom of the housing of a signal face suspended over a
roadway shall not be less than 15 feet nor more than 19 feet
above the pavement grade at the center of the roadway as shown
�e in Figure 18.
Within the above limits, optimum visibility and adequate clearance
should be the guiding considerations in deciding signal height.
Grades on approaching streets may be important factors, and should
be considered in determining the most appropriate height.
M
is
VIII -5.0 Transverse Location of Traffic Sinal Suuuorts and Controller Cabinets
5.1 In the plavement of signal supports, primary consideration shall
be given to ensuring the proper visibility of signal faces as
described in sections VIII -3.0 and VIII -4.0. However, in the
interest of safety, signal supports and controller cabinets should
be placed as far as practicable from the edge of the traveled way
without adversely affecting signal visibility.
5.2 Supports for post -mounted signal heads at the side of a street
with curbs shall have a horizontal clearance of not less than 4
feet from the face of a vertical curb. Where there is no curb,
supports for post -mounted signal heads shall have a horizontal
clearance of not less than two feet from the edge of a shoulder,
within the limits of normal vertical clearance. A signal support
should not obstruct a crosswalk.
VIII -6.0 Warrants for Traffic Signals
6.1 A comprehensive investigation of traffic conditions and physical
characteristics of the location is required to determine the
necessity for a signal installation and to furnish necessary data
for the proper design and operation of a signal that is found to
be warranted. Such data desirably should include:
6.1.1 The number of vehicles entering the intersection in each
hour from each approach during 16 consecutive hours of a
representative day. The 16 hours selected should contain
the greatest percentage of the 24-hour traffic.
6.1.2 Vehicular volumes for each traffic movement from each
approach, classified by vehicle type (heavy trucks,
passenger cars and light trucks, and public -transit ve-
hicles), during each 15 -minute period of the two hours
in the morning and of the two hours in the afternoon
during which total traffic entering the intersection is
greatest.
VIII -4
6.1.3 Pedestrian volume counts on each crosswalk during the
same periods as the vehicular counts in paragraph 6.1.2
above and also during hours of highest pedestrian volume.
Where young or elderly persons need special consideration,
the pedestrians may be classified by general observation
and recorded by age groups as follows:
a. under 13 years
b. 13 to 60 years
7�
c. over 60 years
j
6.1.4 The 85-percentile speed of all vehicles on the uncontrolled
approaches to the location.
6.1.5 A conditions diagram showing details of the physical lay-
out, including such features as intersectional geometries,
channelization, grades, sight-distance restrictions, bus
5i
stops and routing's, parking conditions, pavement markings,
street lighting, driveways, location of nearby railroad
crossings, distance to nearest signals, utility poles and
fixtures, and adjacent land use.
6.1.6 A collision diagram showing accident experience by type,
location, direction of movement, severity, time of day,
9
date, and day of week for at least one year.
6.1.7 The following data are also desirable for a more precise
9
understanding of the operation of the intersection and may
be obtained during the periods specified in 6.1.2 above:
a. Vehicle-seconds delay determined separately for
each approach.
b. The number and distribution of gaps in vehicular
traffic on the major street when minor-street
traffic finds it possible to use the intersection
safely.
c. The 85-percentile speed of vehicles on controlled
approaches at a point near to the intersection but
unaffected by the control.
d. Pedestrian delay time for at least two 30-minute
peak pedestrian delay periods of an average week-
day or like periods of a Saturday or a Sunday.
6.2 An investigation of the need for traffic signal control should in-
clude where applicable, at least an analysis of the factors con-
twined in the following warrants:
Warrant I - Minimum vehicular volume.
Warrant 2 - Interruption of continuous traffic.
Warrant 3 - Minimum pedestrian volume.
Warrant 4 - School crossings.
Warrant 5 - Progressive movement,
Warrant 6 - Accident experience.
Warrant 7 - Systems.
ig
Warrant 8 - Combination of warrants,
VIII-5
VIII -6
6.2.1 Warrant 1, Minimum Vehicular Volume
The Minimum Vehicular Volume warrant is intended for
application whore the volume of intersecting traffic
is the principal reason for consideration of signal
installation. The warrant is satisfied when, for each
of any 8 hours of an average day, the traffic volumes
given in the table below exist on the major street and
on the higher -volume minor -street approach to the inter-
section.
MINIMUM VEHICULAR VOLUMES FOR WARRANT 1
Vehicles per hour
Vehicles per hour on higher -volume
Number of lanes for moving on major street minor -street ap-
traffic on each approach (total of both ap- proach (one di-
Major Street Minor Street proaches) rection only)
�I
�I
1 ----------- 1 ---------- Soo 150
2 or more --- 1 ---------- 600 150
2 or more --- 2 or more -- 600 200
1 ----------- 2 or more -- 500 200
These major -street and minor -street volumes are for the same
8 hours. During those 8 hours, the direction of higher
volume on the minor street may be on one approach during
M
some hours and on the opposite approach during other hours.
When the 85 -percentile speed of major -street traffic exceeds
40 miles per hour, or when the intersection lies within
the built-up area of an isolated community having a population
of less than 10,000, the minimum vehicular volume warrant is
70 percent of the requirements above (in recognition of
differences in the nature and operational characteristics
j
of traffic in urban and rural environments and smaller
municipalities).
6.2.2 Warrant 2, Interruption of Continuous Traffic
The Interruption of Continuous Traffic warrant applies
to operating conditions where the traffic volume on a
major street is so heavy that traffic on a minor intersecting
suffers excessive delay or hazard in entering or crossing
the major street. The warrant is satisfied when, for each
of any 8 hours of an average day, the traffic volumes given
in the table below exist on the major street and on the
higher -volume minor -street approach to the intersection,
and the signal installation will not seriously disrupt
progressive traffic flow.
VIII -6
.
4tJS
MINIMUM VE141CULAR
VOLUMES FOR WARRANT 2
Vehicles per hour
Vehicles per hour
on higher -volume
Number of lanes for moving
on major street
minor -street ap-
traffic on each approach
(total of both ap-
proach (one di -
Major Street Minor Street
proaches)
rection only)
1 ----------- I ----------
750
75
2 or more --- 1 ----------
900
75
2 or more --- 2 or more --
900
100
1 ----------- 2 or more --
750
100
I
ss;
T
<t
These majcr-street and minor -street volumes are for the same
8 hours, During those 8 hours, the direction of higher
volume on the minor street may be on one approach during
some hours and on the opposite approach during other hours.
When the 85 -percentile speed of major -street traffic exceeds
40 miles per hour, or when the intersection lies within
the built-up area of an isolated community having a population
of less than 10,000, the interruption of continuous traffic
warrant is 70 percent of the requirements above (in recog-
nition of differences in the nature and operational char-
acteristics of traffic in urban and rural environments
and smaller municipalities).
6:2.3 Warrant 3, Minimum Pedestrian Volume
The Minimum Pedestrian Volume warrant is satisfied when
for each of any 8 hours of an average day, the following
traffic volumes exist:
a. On the major street, 600 or more vehicles per hour
enter the intersection (total of both approaches);
or where there is a raised median island 4 feet -or
more in width, 1,000 or more vehicles per hour (total
of both approaches) enter the intersection on the
major street;. and
b. During the same 8 hours as in paragraph (a) there
are 150 or more pedestrians per hour on the highest
volume crosswalk crossing the major street.
When the 85 -percentile speed of major -street traffic
exceeds 40 miles per hour, or when the intersection
lies within the built-up area of an isolated community
having a population of less than 10,000, the minimum
pedestrian volume warrant is 70 percent of the requirements
above (in recognition of differences in the nature and
operational characteristics of traffic in urban and rural
environments and smaller municipalities).
0110'A
16
A signal installed under this warrant at an isolated
intersection should be of the traffic -actuated type
with push buttons for pedestrians crossing the main
street. If such a signal is installed at an intersection
within a signal system, it should be equipped and operated
with control devices which provide proper coordination.
Signals installed according to this warrant shall be
equipped with pedestrian indications conforming to re-
quirements set forth in other sections of this Manual.
Signals may be installed at nonintersection locations
(mid -block) provided the requirements of this warrant
are met, and provided that the related crosswalk is not
closer than 150' to another established crosswalk. Curb-
side parking should be prohibited for 100' in advance
of and 20' beyond the crosswalk. Phasing, coordination,
and installation must conform to standards set forth
in this Manual. Special attention should be given to
the signal head placement and the signs and markings
used at nonintersection locations to be sure drivers
are aware of this special application.
6.2.4 Warrant 4, School Crossing
A traffic control signal may be warranted at an established
school crossing when a traffic engineering study of the
frequency and adequacy of gaps in the vehicular traffic
q
stream as related to the number and size of groups of
school children at the school crossing shows that the
number of adequate gaps in the traffic stream during the
period when the children are using the crossing is less
than the number of minutes in the same period.
When traffic control signals are installed entirely
under this warrant:
a. Pedestrian indications shall be provided at least
for each crosswalk established as a school crossing.
b. At an intersection, the signal normally should be
traffic -actuated. As a minimum, it should be semi -
traffic -actuated, but full actuation with detectors
on all approaches may be desirable. Intersection in-
stallations that can be fitted into progressive
signal systems may have pretimed control.
c. At non -intersection crossings, the signal should
be pedestrian -actuated, parking and other obstructions
to view should be prohibited for at least 100 feet
in advance of and 20 feet beyond the crosswalk, and.
the installation should include suitable standard
signs and pavement markings. Special police super-
vision and/or enforcement should be provided for a
new non -intersection installation.
VIII -g
6.2.5 Warrant 5, Progressive Movement
Progressive movement control sometimes necessitates traffic
signal installations at intersections where they would
not otherwise be warranted, in order to maintain proper
grouping of vehicles and effectively regulate group speed.
The Progressive Movement warrant is satisfied when:
a. On a one-way street or a street which has predominantly
unidirectional traffic, the adjacent signals are so
far apart that they do not provide the necessary degree
of vehicle platooning and speed control, or
b. On a two-way street, adjacent signals do not provide
the necessary degree of platooning and speed control
and the proposed and adjacent signals could constitute
a progressive signal system.
The installation of a signal according to this warrant
should be based on the 85 -percentile speed unless an
engineering study indicates that another speed is more
desirable.
The installation of a signal according to this warrant
should not be considered where the resultant signal
spacing would be loss than 1,000 feet.
6.2,6 Warrant 6, Accident Experience
The Accident Experience warrant is satisfied when:
a. Adequate trial of less restrictive remedies with
satisfactory observance and enforcement has failed
to reduce the accident frequency; and
b. Five or more reported accidents, of types susceptible
of correction by traffic signal control, have occurred
within a 12 -month period, each accident involving
personal injury or property damage to an apparent
extent of $100 or more; and
c. There exists a volume of vehicular and pedestrian
traffic not less than 80 percent of the requirements
specified'either in the minimum vehicular volume
warrant, or the minimum pedestrian volume warrant;
and
d. The signal installation will not seriously disrupt
progressive traffic flow,
Any traffic signal installed solely on the Accident
Experience warrant should be semi -traffic -actuated
(with control devices which provide proper coordination
if installed at an intersection within a coordinated
system) and normally should be fully traffic -actuated
if installed at an isolated intersection.
VIII -9
I
6.2.7 Warrant 7, Systems Warrant
A traffic signal installation at some intersections
may he warranted to encourage concentration and organization
of traffic flow networks.
1'he Systems warrant is applicable when the common inter-
section of two or more major routes has a total existing,
or immediately projected, entering volume of at least
800 vehicles during the peak hour of a typical weekday,
H or each of any five hours of a Saturday and/or Sunday.
A major route as used in the above warrant has one or more
of the following characteristics:
a. It is part of the street or highway system that
serves as the principal network for through traffic
flow;
b. It connects areas of principal traffic generation;
c. .It includes rural or suburban highways outside of,
entering or traversing a city;
d. It has surface street freeway or expressway ramp
terminals;
e. it appears as a major route on an official plan
such as a major street plan in an urban area traffic
and transportation study.
6.2.8 Warrant 8, Combination of Warrants
In exceptional cases, signals occasionally may be
justified where no single warrant is satisfied but
where two or more of Warrants 1, 2 and 3 are satisfied
to the extent of 80 percent or more of the stated
values.
L Adequate trial of other remedial measures which cause
less delay and inconvenience to traffic should precede
installation of signals under this warrant.
6.3 Pedestrian signal indications shall be installed in conjunction
with vehicular traffic signals (which meet one or more of the
traffic signal warrants previously set forth) under any of the
following conditions:
j6.3.1 When a traffic signal is installed under the pedestrian
volume or school crossing warrant.
6.3.2 When an exclusive interval or phase is provided or made
- - available for pedestrian movement in one or more directions,
with all conflicting vehicular movements being stopped.
6.3.3 When vehicular indications are not visible to pedestrians
such as in one-way streets, at 'IT" intersections; or when
g the vehicular indications are in a position which would
gadequately serve pedestrians.
VIII-10
i
6,3.4 At established school crossings at intersections signalized
under any warrant.
'
6.3.5 Pedestrian signal indications also may be installed under
any of the following conditions:
a. When any volume of pedestrian activity requires use
of a pedestrian clearance interval to minimize
vehicle -pedestrian conflicts or when it is necessary
to assist pedestrians in making a safe crossing.
b. When multi -phase indications (as with split -phase
timing) would tend to confuse pedestrians guided
'
only by vehicle signal indications.
c. When pedestrians cross part of the street, to or
from an island, during a particular interval (where
a
they should not be permitted to cross another part
> m
of that street during any part of the same interval).
i
ISECTION IX
I
A
Local
0.9 0.6 0.2
1.2 The area classifications are defined as follows:
a. Downtown
That portion of a municipality in a business development where
ordinarily there are large numbers of pedestrians and a heavy
demand for parking space during periods of peak traffic or
a sustained high pedestrian volume and a continuously heavy
demand for off-street parking space during business and in-
dustrial employment hours. This definition applies to
densely developed industrial and business areas outside of,
as well as those that are within, the central part of the
municipality.
b. Intermediate
That portion of a municipality which is outside of a down-
town area, but generally within the zone of influence of a
business or industrial development, characterized often by
a moderately heavy nighttime pedestrian traffic and a some-
what lower parking turnover than is found is a downtown area.
c. Outlying and Rural
A residential development, or a mixture of residential and
commercial establishments, characterized by few pedestrians
.and a low parking demand or turnover.
1.3 All street lighting systems suffer loss of light output due to
the natural aging of the light source itself, and are all subject
to further loss due to the accumulation of dust and dirt on the
luminaire. The design should allow for a normal maintenance
factor in the sizing of the street lighting system.
IX -1
ROADWAY LIQUING
IX -l.0 Average Horizontal Footcandles
1.1
The following values of street lighting intensity are
design
objectives which should be met:
Average
Horizontal
Footcandles
Roadway Classification
Area
Classification
Downtown
Intermediate
Outlying
Arterial 2.0
1.2
0.9
of
Collector 1.2
0.9
0.6
I
A
Local
0.9 0.6 0.2
1.2 The area classifications are defined as follows:
a. Downtown
That portion of a municipality in a business development where
ordinarily there are large numbers of pedestrians and a heavy
demand for parking space during periods of peak traffic or
a sustained high pedestrian volume and a continuously heavy
demand for off-street parking space during business and in-
dustrial employment hours. This definition applies to
densely developed industrial and business areas outside of,
as well as those that are within, the central part of the
municipality.
b. Intermediate
That portion of a municipality which is outside of a down-
town area, but generally within the zone of influence of a
business or industrial development, characterized often by
a moderately heavy nighttime pedestrian traffic and a some-
what lower parking turnover than is found is a downtown area.
c. Outlying and Rural
A residential development, or a mixture of residential and
commercial establishments, characterized by few pedestrians
.and a low parking demand or turnover.
1.3 All street lighting systems suffer loss of light output due to
the natural aging of the light source itself, and are all subject
to further loss due to the accumulation of dust and dirt on the
luminaire. The design should allow for a normal maintenance
factor in the sizing of the street lighting system.
IX -1
1.3.1 The Horizontal footcandles can be calculated by the
equation: Lamp Lumens(initial) x Coefficient
Avg Horizontal Pootcandle a of Utilization x maintenance factor
Luminaire spat ng x Kofui w t
The coefficient of utilization can be determined from the
'•'• following graph:
2i
RATIO TRANSVERSE DISTANCE
YOUNTINO MONT
IX -2.0 Current Installation Practice
2.1 The required lumen output and mounting height is as follows:
Roadway Classification
Luminaire
Mounting
Height
Local
7000 lumen ASA Type III
26
ft.
Collector
10,000 lumen
ASA Type III
28
ft.
Arterial
20,000 lumen
ASA Typo III
30
ft.
2.2 The general criteria for
the location of
street lights
are as
follows:
2.2.1 A street light at all intersections.
2.2.2 Street lights at mid -block locations if the blocks are
more than 600 feet in length.
2.2.3 Closer spacing of street lights in problem areas such
as major arterials or high pedestrian areas, as determined
by an engineering study.
IX -2
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EVERY 150' 6 CONTRACTION
JOINTS EVERY 15'
3` 4.5'
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TYPE VB' ASPHALTIC CONCRETE
BASE COURSE
CITY OF IOWA CITY] IOWA
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
TYPICAL 30" CURB 6 GUTTER
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CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
TYPICAL CURB
CROSS-SECTION
Figure 3
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16'FOR RCSIDENTIAL ALLEY,
20 FOR COMMERCIAL ALLAY
CITY OF 'IOWA CITY, IOWA
DEPARTMENT OF PUBLIC TIORXS
ENGINEERING DIVISION
TYPICAL ALLEY CROSS-SECTION
Figure 4
.'. STATE OR FEDER awI LHWAY
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SERVICE STATION ON A CORNER SITE
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RLSIDENTIAL. DRIVE
CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
DRIVEWAY DIAGRAM
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CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
DRIVEWAY DIAGRAM
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CITY OF IOWA CITY, Ir14A
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
TYPICAL MANHOLE 6' OR LESS
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CITY OF IOWA CITY, Ir14A
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
TYPICAL MANHOLE 6' OR LESS
IN DEPTH
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STEP DETAIL
CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
TYPICAL MANHOLE 6' OR MORE
IN DEPTH
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CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
TYPICAL MANHOLE 6' OR MORE
IN DEPTH
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Mahho/e Bose
CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
SANITARY DROP CONNECTION
Figure 8
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Mahho/e Bose
CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
SANITARY DROP CONNECTION
Figure 8
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RISER PIPE IN PLACE PRIOR
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MOVEMENT OF PIPE.
SELECT VERTICAL, 30' OR
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PIPE TO SUIT TRENCH WALL
CONDITIONS.
NOTCH WALL OF TRENCH TO
RECEIVE PIPE WHERE
POSSIBLE.
STOPPER AT END OF PIPE OYP.)
TRENCH WALL
RISER PIPE
BRANCH (SIZE AS SPECIFIED)
TYPE M-3 CONCRETE
CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
SANITARY RISER
Figure 9
3
STAKE TO WALL OF TRENCH
�0
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INSTALL RISER PIPE TO BEAR
"
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`. FIRMLY AGAINST UNDISTURBED
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1
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Z.
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RISER PIPE IN PLACE PRIOR
TO BACKFILLING TO PREVENT
MOVEMENT OF PIPE.
SELECT VERTICAL, 30' OR
45' POSITION OF RISER
PIPE TO SUIT TRENCH WALL
CONDITIONS.
NOTCH WALL OF TRENCH TO
RECEIVE PIPE WHERE
POSSIBLE.
STOPPER AT END OF PIPE OYP.)
TRENCH WALL
RISER PIPE
BRANCH (SIZE AS SPECIFIED)
TYPE M-3 CONCRETE
CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
ENGINEERING DIVISION
SANITARY RISER
Figure 9
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LASS "C" BE1 G
NOTES:
1. PIPE SHALL BE LAID ON
UNDISTURBED SOIL.
2. BELL HOLES SHALL BE HAND
SHAPED SUCH THAT THE BARREL
OF THE PIPE LIES ON UNDISTURBED
SOIL.
3. BACKFILL SHALL BE HAND TAMPED
TO THE TOP OF THE PIPE.
CLASS "B" BEDDING
NOTES:
1. PIPE BEDDING SHALL BE PLACED
ON UNDISTURBED SOIL AND
COMPACTED.
2. BELL HOLES SHALL BE HAND
SHAPED SUCH THAT THE BARREL
OF THE PIPE LIES ON COMPACTED
BEDDINGe
3. BACKFILL SHALL BE HAND TAMPED
TO THE TOP OF THE PIPE.
CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC: WORKS
ENGINEERING DIVISION
PIPE BEDDING
Figure 10
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9
CITY OF IOWA CITY, IOWA
DEPARTMENT OF PUBLIC WORKS
.ENGINEERING DP/ISION
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9
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CITY OF IOWA CITY, TOWA
DEPART:UaT OF PUBLIC WORKS
ENGI\FF.RI`lr DIVISION
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