HomeMy WebLinkAbout04-15-2014 Airport Zoning CommissionIOWA CITY/JOHNSON COUNTY AIRPORT ZONING COMMISSION
MEETING AGENDA
AIRPORT TERMINAL BUILDING
1801 S. RIVERSIDE DRIVE
IOWA CITY, IOWA
TUESDAY, APRIL 15, 2014 - 5:30 P.M.
1. Determine Quorum
2. Public Discussion of any item not on the Agenda
3. Approval of Minutes of the following meetings:
a. April 7, 2014
4. Items for Discussion / Action:
a. Consider a recommendation to amend airport zoning code Title 14, Zoning,
Chapter 6, Airport Zoning, Section 4, Airport zones to allow an
administrative review process of proposed objects which may penetrate the
Horizontal Overlay zone under certain conditions
5. Adjourn
*The times listed in the agenda are the anticipated duration of that particular agenda item. The actual discussion
may take more or less time than anticipated
Airport Commission
April 7, 2014
Page 1
MINUTES DRAFT
IOWA CITY/JOHNSON COUNTY AIRPORT ZONING COMMISSION
APRIL 7, 2014 — 5:30 P.M.
AIRPORT TERMINAL BUILDING
Members Present: John Etheredge, Christine Douglas, Matthew Wolford, Terry Dahms
Members Absent:
Staff Present: Michael Tharp, Sue Dulek
Others Present:
RECOMMENDATIONS TO COUNCIL: (to become effective only after separate Council
action):
None
CALL TO ORDER:
Tharp called the meeting to order at 5:34 P.M.
ITEMS FOR DISCUSSION/ACTION:
a. Orientation — Tharp welcomed members to the meeting. Tharp described the
role of the Airport Zoning Commission and what they were being asked to do.
Tharp then described the information packet to the members. Tharp noted the
enclosed Open Records memo and discussed the open meeting rules with
members. Tharp then described the draft ordinance that was in the packet.
b. Chair Selection — Tharp stated the second half of the meeting was going to be
to decide a method to select the Chair. Tharp stated that the Commission was
made up of 2 appointees by the County and 2 from the City, and that they
collectively were to decide the chair. Dulek noted that they could have an
informal process or a formal process. Dulek also noted that they could agree to
select a woman to fulfill the gender balance requirements, or they would need to
advertise and after 90 days they could appoint anyone. Dulek stated that one
other option would be for one of the two county appointees could also go back to
the Board of Supervisors and request they appoint a female instead. Douglas
nominated Jill Fishbaugh. Upon an indication that Jill Fishbaugh would not be
available, there was no second. Members continued to discuss candidates for
the Chair position.
Members discussed the schedule while waiting for responses from chair
candidates. Tharp noted that evenings work better than morning. Dahms asked
for some additional information regarding the amendment, and Tharp stated he
would provide that at the next meeting.
Airport Commission
April 7, 2014
Page 2
Etheredge nominated Elaine Reitz to be Chair, seconded by Wolford.
Motion carried 4-0.
Members set the next two meetings for April 17 and April 24`" at 5:30pm.
ADJOURN: Etheredge motioned to adjourn, seconded by Wolford. Motion Carried 4-0.
Meeting adjourned at 6:01
CHAIRPERSON DATE
Airport Commission
April 7, 2014
Page 3
Airport Zoning Commission
ATTENDANCE RECORD
2014
Key:
X = Present
X/E = Present for Part of Meeting
O = Absent
O/E = Absent/Excused
NM = Not a Member at this time
TERM
o
A
NAME
EXP.
O
A
John Etheredge
12/31/14
X
Christine Douglas
12/31/15
X
Matthew Wolford
12/31/17
X
Terry Dahms
03/01/16
X
Key:
X = Present
X/E = Present for Part of Meeting
O = Absent
O/E = Absent/Excused
NM = Not a Member at this time
CITY OF IOWA CITY
`YA L MEMORANDUM
Date: April 11, 2014
To: Airport Zoning Commission
From: Airport Operations Specialist
Re: Amendment to 14-6-4 Airport Zones
INTRODUCTION/BACKGROUND:
The City of Iowa City has a section in the zoning code protecting the airspace around the Iowa
City Municipal Airport. (Title 14, Chapter 6)
The Horizontal Overly zone is an imaginary plane at 150 feet above the highest runway
elevation and extending in a circle 10,000 feet in diameter. The purpose of which is to control
'tall' structures near the airport or airport flight patterns which may cause hazards to aircraft.
As currently written, the code only allows for the penetration of the Horizontal Overlay zone by
special exception. Recently due to several factors, there have been instances where the
Federal Aviation Administration (FAA) will issue a "Notice of Determination of No Hazard to Air
Navigation" for proposed projects even though they penetrate the horizontal overlay zone. In
other words, the FAA does not object to the project, but the City Code prohibits it without a
special exception.
GOAL:
The proposed amendment would allow an administrative review process that would allow
objects to penetrate the Horizontal Overlay zone under certain specific conditions. In these
instances, a special exception would not be required.
The proposed code language is found below. Underlined text is new language to be added.
DEFINITION OF ZONING TERMS AND PROCESS:
Given that some of you may not be familiar with zoning terms and process, I thought it helpful to
provide some additional information.
The Airport Zoning Commission, just like a County Zoning Commission or City Zoning
Commission, makes recommendations to the Board of Supervisors or the City Council
regarding proposed changes to the zoning code. In this instance, Airport staff is recommending
a change to the zoning code regarding airports. Before the City Council of Iowa City can
consider the change, there must be a recommendation from the Airport Zoning Commission.
A special exception is a limited way for the government to grant an exception to the zoning code
if certain criteria are met. A typical example is that the zoning code requires buildings to be
located at least X feet from the property line, which is referred to as a "setback requirement."
By way of example, assume that the zoning code does not allow a building to be constructed
within 8 feet of the side property yard. The zoning code could, for example, allow a special
exception that would permit a structure to be built as close as 6 feet of the property line if: a)
April 11, 2014
Page 2
the neighboring property owner was agreeable; b) it was for an addition to an existing structure;
c) it is compatible with the surrounding structures; d) and so forth.
Special exceptions are granted by a "Board of Adjustment," which is a citizen group who hears
applications and grants or denies exceptions. In this example, the homeowner wanting to add
on to a garage that would be located 6 Yz feet from the property line would file an application for
a special exception. Usually a fee is charged. Then there is a hearing before the Board of
Adjustment, and if all the criteria are met, the Board would grant the special exception, and if
not, the Board would deny it.
Even though special exceptions are available to a property owner wanting to build a structure
that penetrates the Horizontal Overlay zone, the proposed amendment would allow for some
penetrations without the need to apply for a special exception. In short, the proposed
amendment eases up on the building restriction, while not adversely affecting the operation of
the airport.
EXCERPT OF SECTION 14-6-4 OF THE CITY CODE WITH PROPOSED CHANGE
In order to carry out the provisions of this section there are hereby created and established certain
zones which are adopted and described herein, and which are depicted on the Iowa City airport
zoning map, dated March 25, 2002, and as thereafter amended by ordinance, which map is adopted
by this chapter and which map is on file in the office of the city clerk, Iowa City, Iowa. Any structure
or tree located in more than one zone is considered to be only in the zone with the more restrictive
height and use limitation. The various zones hereby established and defined are as follows:...
C. Horizontal Overlay Zone (HO) Defined:
1. The airspace above a horizontal plane, the perimeter of which is established by swinging arcs
of ten thousand foot (10,000') radii from the center of the inner edge of the AO zones of runways
25, 30, and 36, and an arc of five thousand foot (5,000') radius from the center of the inner edge
of the AO zone of runways 12, 7, and 18, and connecting the adjacent arcs by lines tangent to
those arcs. The floor of the HO zone is one hundred fifty feet (150') above the airport elevation,
or eight hundred thirty four feet (834') above mean sea level.
2. Except as otherwise provided herein, no person shall construct or alter any structure, or plant
or grow any tree, so as to penetrate the horizontal overlay zone created herein.
3. The proposed structure may penetrate the HO if the Airport Operations Specialist determines
that:
a) the FAA has issued a "Determination of No Hazard to Navigation;'
b) the proposed structure does not exceed any TERPS zone or any other 14 C.F.R. Part 77
zone; and
c) the proposed structure does not require a change to instrument approaches, minimum
safe altitude, traffic pattern altitude, takeoff/departure procedures or weather minimums or a
change similar in nature either to the approach or departure of an aircraft
April 11, 2014
Page 3
FAA TERMS:
I thought it best to define some FAA terminology for you:
"Determination of No Hazard" (DNH) - is issued if the structure exceeds obstruction standards
but does not result in a substantial adverse effect. I have included a sample airspace study for
example.
TERPS — Terminal Instrument Procedures - is the set of rules and guidelines the FAA uses to design
and implement instrument flight procedures.
A 14 C.F.R. Part 77 zone' - Federal Regulation Title 14 Part 77 establishes standards and
notification requirements for objects affecting navigable airspace. This defines the shape and size of
the several different airspace zones.
RECOMMENDATION:
Amend the zoning ordinance to allow for administrative review of objects that may penetrate this
zone given specific criteria for approval.
Federal Aviation Administration
Air Traffic Airspace Branch, ASW -520
2601 Meacham Blvd.
Fort Worth, TX 76137-0520
Issued Date: 04/28/2010
Nicholas Laskovski
Alteris Renewables, Inc.
5197 Main St.
Suite 2A
Waitsfield, VT 05673
Aeronautical Study No.
2009-WTE-12254-OE
** DETERMINATION OF NO HAZARD TO AIR NAVIGATION **
The Federal Aviation Administration has conducted an aeronautical study under the provisions of 49 U.S.C.,
Section 44718 and if applicable Title 14 of the Code of Federal Regulations, part 77, concerning:
Structure:
Wind Turbine Directwind 900 - UNFI
Location:
Iowa City, IA
Latitude:
41-3 8-09.97N NAD 83
Longitude:
91-29-11.29W
Heights:
353 feet above ground level (AGL)
1025 feet above mean sea level (AMSL)
This aeronautical study revealed that the structure would have no substantial adverse effect on the safe
and efficient utilization of the navigable airspace by aircraft or on the operation of air navigation facilities.
Therefore, pursuant to the authority delegated to me, it is hereby determined that the structure would not be a
hazard to air navigation provided the following condition(s) is(are) met:
As a condition to this Determination, the structure is marked and/or lighted in accordance with FAA Advisory
circular 70/7460-1 K Change 2, Obstruction Marking and Lighting, white paint/synchronized red lights -
Chapters 4,12& 13(Turbines).
It is required that FAA Form 7460-2, Notice of Actual Construction or Alteration, be completed and returned to
this office any time the project is abandoned or:
At least 10 days prior to start of construction (7460-2, Part I)
X Within 5 days after the construction reaches its greatest height (7460-2, Part Il)
See attachment for additional condition(s) or information.
This determination expires on 04/28/2012 unless:
(a) extended, revised or terminated by the issuing office.
(b) the construction is subject to the licensing authority of the Federal Communications Commission
(FCC) and an application for a construction permit has been filed, as required by the FCC, within
6 months of the date of this determination. In such case, the determination expires on the date
prescribed by the FCC for completion of construction, or the date the FCC denies the application.
Page 1 of 5
NOTE: REQUEST FOR EXTENSION OF THE EFFECTIVE PERIOD OF THIS DETERMINATION
MUST BE POSTMARKED OR DELIVERED TO THIS OFFICE AT LEAST 15 DAYS PRIOR TO THE
IONJ, IMY I rel►ITE
This determination is subject to review if an interested party files a petition that is received by the FAA on or
before May 28, 2010. In the event a petition for review is filed, it must contain a full statement of the basis
upon which it is made and be submitted in triplicate to the Manager, Airspace and Rules Division - Room 423,
Federal Aviation Administration, 800 Independence Ave., Washington, D.C. 20591.
This determination becomes final on June 07, 2010 unless a petition is timely filed. In which case, this
determination will not become final pending disposition of the petition. Interested parties will be notified of the
grant of any review. For any questions regarding your petition, please contact Office of Airspace and Rules via
telephone -- 202-267-8783 - or facsimile 202-267-9328.
This determination is based, in part, on the foregoing description which includes specific coordinates, heights,
frequency(ies) and power. Any changes in coordinates, heights, and frequencies or use of greater power will
void this determination. Any future construction or alteration, including increase to heights, power, or the
addition of other transmitters, requires separate notice to the FAA.
This determination does include temporary construction equipment such as cranes, derricks, etc., which may be
used during actual construction of the structure. However, this equipment shall not exceed the overall heights as
indicated above. Equipment which has a height greater than the studied structure requires separate notice to the
FAA.
This determination concerns the effect of this structure on the safe and efficient use of navigable airspace
by aircraft and does not relieve the sponsor of compliance responsibilities relating to any law, ordinance, or
regulation of any Federal, State, or local government body.
This aeronautical study considered and analyzed the impact on existing and proposed arrival, departure, and
en route procedures for aircraft operating under both visual flight Hiles and instrument flight rules; the impact
on all existing and planned public -use airports, military airports and aeronautical facilities; and the cumulative
impact resulting from the studied structure when combined with the impact of other existing or proposed
structures. The study disclosed that the described structure would have no substantial adverse effect on air
navigation.
An account of the study findings, aeronautical objections received by the FAA during the study (if any), and the
basis for the FAA's decision in this matter can be found on the following page(s).
If we can be of further assistance, please contact Michael Blaich, at (404) 305-7081. On any future
correspondence concerning this matter, please refer to Aeronautical Study Number 2009-WTE-12254-OE.
Signature Control No: 668775-125274631
Sheri Edgett-Baron
Acting Manager, Obstruction Evaluation Service
Attachment(s)
Page 2 of 5
(DNH-WT)
Additional Information
Map(s)
Page 3 of 5
Additional information for ASN 2009-WTE-12254-OE
The proposed construction would be located approximately 2.75 nautical miles (NM) east of the Iowa City
Municipal Airport (IOW). It would exceed the Obstruction Standards of Title 14, Code of Federal Regulations
(14 CFR), Part 77 as follows:
Section 77.23(a)(2) by 153 feet - a height that exceeds 200 feet above ground level within 2.75 NM as applied
to IOW.
The proposal was not circularized for public comment because current FAA obstruction evaluation policy
exempts from circularization those proposals that exceed the above cited obstruction standard. This is provided
the proposal does not lie within an airport traffic pattern. This policy does not affect the public's right to
petition for review determinations regarding structures, which exceed the subject obstruction standards.
AERONAUTICAL STUDY FOR POSSIBLE INSTRUMENT FLIGHT RULES (IFR) EFFECT DISCLOSED
THE FOLLOWING:
> The proposed structure would have no effect on any existing or proposed IFR arrival/departure routes,
operations, or procedures.
> The proposed structure would have no effect on any existing or proposed IFR en route routes, operations, or
procedures.
> The proposed structure would have no effect on any existing or proposed IFR minimum flight altitudes.
AERONAUTICAL STUDY FOR POSSIBLE VISUAL FLIGHT RULES (VFR) EFFECT DISCLOSED THE
FOLLOWING:
> The proposed structure would have no effect on any existing or proposed VFR arrival or departure routes,
operations or procedures.
> The proposed structure would not conflict with airspace required to conduct normal VFR traffic pattern
operations at any known public use or military airports.
> The proposed structure would not penetrate those altitudes normally considered available to airmen for VFR
en route flight.
> The proposed structure will be appropriately obstruction marked and lighted to make it more conspicuous to
airmen flying in VFR weather conditions at night.
The cumulative impact of the proposed structure, when combined with other existing structures is not
considered significant. Study did not disclose any adverse effect on existing or proposed public -use or military
airports or navigational facilities. Nor would the proposal affect the capacity of any known existing or planned
public -use or military airport.
Therefore, it is determined that the proposed construction would not have a substantial adverse effect on the
safe and efficient utilization of the navigable airspace by aircraft or on any air navigation facility and would not
be a hazard to air navigation.
Page 4 of 5
Sectional Map for ASN 2009-WTE-12254-OE
09
500) uc (2 1)� - wv_,02
�
- 24
(3 1,2 irk- ,�. Itf90�do
PICAYUNE (Pyt)
AN f !27
P3 W'I e'st r 1 Eva
_ :t ! 05, [--Branch (36ai
1 V l id h
IOWA CIjX ijl0w
ho,
—r S S` 2$1rP75
I 0_Q 7
IR20 Riverside
`O
–(323)—
Page 5 of 5
5
� t74irr�t�
U
.A.
P.�
E
FAR PART 77
SURFACES
IOWA CITY MUNICIPAL
AIRPORT
IOWA CITY, IOWA
Prepared for:
Iowa Dept of Transportation
Office of Aviation
800 Lincoln Way
Ames, IA 50010
515-239-1691
..1awings.cam
Runway Centerline
Primary Surface
.W�
Ls.
Approach Surface
to
}
— Transitional Surface
— Horizontal Surface
Conical Surface
E
FAR PART 77
SURFACES
IOWA CITY MUNICIPAL
AIRPORT
IOWA CITY, IOWA
Prepared for:
Iowa Dept of Transportation
Office of Aviation
800 Lincoln Way
Ames, IA 50010
515-239-1691
..1awings.cam
Runway Centerline
Primary Surface
Approach Surface
— Transitional Surface
— Horizontal Surface
Conical Surface
Airport Reference
668'
Point Elevation
I
This diagram is to be used for informational purposes only to
provide a quick reference to aid airport managers and planners in
Prepared by:
understanding the extent of the FAR Pan ]] surfaces as It relates
to existing airport property. It Is based on data contained In the
FAAN AS 2007. Any use beyondthe
databaseasauthorized.
WAD
dedp
intended determine annedairportdev Foradditional
or to plannede contact [he local
pForfur airport development c contact
information
information regarding FAR Part
airport sponsor. For r ar
rt sponsor
`HUNT
:doer
surtaces, consult httpaloeaaa.faa.govloeaaalexternallportal.jsp.
js