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Home My WebLink AboutGateway.pptIOWA CITY ra GATEWAY • Project background • NEPA Process and findings • Design option decisions • Level of protection for Dubuque Street • Backwater Reduction goal for the bridge • Structure Type for the bridge • Impacts of the Do- Nothing Alternative • Council Q &A Project Study Area Normal 2008 a Conditions ' ' Flood I IOWA CITY Project Partners GATEWAY This project is being led by the City of Iowa City in cooperation with: • University of Iowa • Metropolitan Planning Organization of Johnson County (MPOJC) • Project GREEN • Iowa Department of Transportation (DOT) • Federal Highway Administration (FHWA) • Economic Development Administration (EDA) IOWA ciTY GATEWAY Project Goals Goals • Improve the reliability of Dubuque Street • Improve the reliability of Park Road & Bridge ■ Reduce the backwater created by Park Road Bridge • Provide needed infrastructure improvements • Better serve bicyclists and pedestrians ■ Preserve and enhance the natural entry Funding Sources I Gateway Project - $40 Million • U.S. Department of Commerce, Economic Development Administration — $3 Million • Transportation, Housing & Urban Development — $1.5 Million • SAFETEA -LU Surface Transportation Program — $6 Million • Local Option Sales Tax — $25.8 Million • G.O. Bonds — $3.7 Million Three Projects from the CIP to be combined into one bid package Gateway Project - $40 Million ■ U.S. Department of Commerce, Economic Development Admin. $3 Million • Transportation, Housing & Urban Development— $1.5 Million • SAFETEA -LU Surface Transportation Program — $6 Million • Local Option Sales Tax — $25.8 Million • G.O. Bonds— $3.7 Million Park Road 3rd Lane Improvement - $1.44 Million ■ G.O. Bonds - $1.44 Million North River Corridor Trunk Sewer Reconstruction - $4.4 Million ■ Wastewater Operations - $4.4 Million Tonight's discussion and estimates will focus on Gateway and Park Rd Gateway Project - $40 Million ■ U.S. Department of Commerce, Economic Development Admin. $3 Million • Transportation, Housing & Urban Development— $1.5 Million • SAFETEA -LU Surface Transportation Program — $6 Million • Local Option Sales Tax — $25.8 Million • G.O. Bonds— $3.7 Million Park Road 3rd Lane Improvement - $1.44 Million ■ G.O. Bonds - $1.44 Million North River Corridor Trunk Sewer Reconstruction - $4.4 Million ■ Wastewater Operations - $4.4 Million Process to Date and Schedule Iowa City Gateway Schedule 2011 I 2012 Phase 1 - Plan Environmental Assessment Develop potential Alternatives Develop Initial Alternatives Conduct and Document Environmental Assessment Federal, State and Local Agency Revievr(s) Identify preferred Ahemabve(s) Conduct Formal Comment Period Finalize Environmental Assessment Council Approval of Design Parameters Phase 2 - Design Phase 3 - Construction September - 2013 2013 2014 2015 2016 I 1 I 11 1 1 Public Meeting 3/2011 Public Meeting 7/2011 Drop -In Center 1112011 Public nearing /Drop -in Center 4/2013 1 Public Meeting 3/2011 Public Meeting 7/2011 Drop -In Center 1112011 Public nearing /Drop -in Center 4/2013 Ioq,a Cif � 1 -Plan Project Development Stages Phase 1: Plan - NEPA evaluation - Planning process IOW 4c 1 � 2 -D I- Phase 2: Design -After completing NEPA - Detailed engineering & final design - 12 to 15 IO�'a fit 3 -Huila Phase 3: Build - 2 construction seasons - Bid in December 2014 - Begin construction in 2015 for fall 2016 samr)letion IOWA CirrV v GATEWAY What is NEPA • National Environmental Policy Act (1969) • Required for federally funded or permitted projects • Conduct prior to design and construction • Evaluate impacts to both natural and social (man -made) environment ■ Follows one of three types of process /documents • Environmental Impact Statement • Environmental Assessment • Categorical Exclusion IOWA ciTV f; ATEWAV NEPATasks I Completed: ✓ Data collection ✓ Flood model data updated ✓ Initial alternatives screening ✓ Purpose and Need approved ✓ Two public meetings ✓ Refine alternatives ✓ Screen alternatives ✓ Recommend preferred alternative ✓ Prepare NEPA document ✓ Resource Agency coordination ✓ Release NEPA document for review ✓ Hosted Public Hearing To Do: ❑ Receive Federal approval ❑ Keep talking with stakeholders ❑ Advance to design and construction NEPA Purpose and Need Why do the project: The purpose of the proposed action is to provide a reliable s -4 multimodal transportation corridor that reduces the impact of flooding on the local transportation system and the Iowa s River corridor. Need for the Proposed Action: • Maximize the reliability of Dubuque Street • Maximize the reliability of Park Road Bridge; • Minimize backwater created by Park Road Bridge • Address existing roadway deficiencies on Dubuque Street and Park Road NEPA Process for the Gateway &� _ Environmental Assessment Initial alternatives Reasonable alternatives Recommended alternative Preferred alternative 0 Initial Roadway Alternatives • Off - Alignment • Dodge /Governor • First Avenue /Highway 6 • Foster Road /Prairie du Chien • On- Dubuque Street • Off - Dubuque Street • Lower City Park • Taft Speedway • Louis Place • Foster Road '. -'sib • � f 1• 171 IOWA ciTY GATEWAY Initial Bridge Alternatives t Stayed Steel or • Similar to Mississippi River Bridge in Burlington, Iowa tr Girder Bridge Steel or concrete Similar to existing Park Road Bridge Open Spandrel Deck Arch Steel or concrete Similar to Iowa Avenue Bridge i NEPA Preferred Alternative 18 On .oil Lr yr NEPA Preferred Alternative • Build 1 foot above 500 year floodplain • Improve bike /ped /trail connections • Maintain parkway feel • New bridge • Low steel to pass 500 year flood+ • 5 lanes of travel + • Longer spans 1 ,x • Located south of existing Park Road Bridge 2 NEPA Preferred Alternative Girder bridge Located south of existing bridge Five travel lanes 10' Multipurpose paths on each side Similar transit access Least expensive bridge type Fewer piers in the water Perpendicular with river Minimizes backwater Preferred Alternative from City Park r 1 ` r S inNEPA Preferred Alternative Impact area and Category • 0.94 acres Wetlands • 5.1 acres Grading impacts to public parks /open space • 1.2 acres Historic Sites or Districts (no buildings or resources) • 15.4 acres 100 Year Floodplain • 17.9 acres 500 Year Floodplain • 0.92 acres Acquired ROW • 0.2 acres residential • 0.5 acres parks /open space • 0.4 acres university of Iowa Preferred Alternative ROW Impacts EON �5 ATPOO �. - 2 NEPA Cultural Resource Investigations ■ Led by Office of State Archaeologist and Tallgrass Historians ■ Coordinated with: • Iowa City Historic Preservation Commission • Iowa DOT Cultural Resource staff • State Historic Preservation Officer • Received finding of Conditional No Effect summer 2012 • Affirmed by independent evaluation summer 2013 • Advisory Council on Historic Preservation IOWA ciTY NEPA Public Outreac). GATEWAY • Two public meetings: 250+ attendees • Drop -in center + online public meeting • Public hearing /drop -in center • Multiple paid ads • Local media press releases • City and project specific Web site • Mailing list of nearly 2,000 • Neighborhood and civic group meetings • Multiple one -on -one meetings and calls with City staff ■ - r — - t NEPAAgency Coordination and � Findings ■ Federal Highway Administration ■ Economic Development Administration ■ Iowa Department of Transportation ■ State Historical Society of Iowa ■ Iowa Highway Archaeology Program ■ Iowa City Historic Preservation Commission ■ Other Agencies • Natural Resource Conservation Service • U.S. Army Corp of Engineers • U.S. Fish and Wildlife • Tribal coordination • MPO Johnson County Finding of No Significant Impact Section 4(f) De Minimis Conditional No Adverse Effect Conditional No Adverse Effect Concur with Conditional No Adverse Effect Letter of Protect Support to SHPO Federal Aviation Administration U.S. EPA U.S. Coast Guard Iowa DNR Iowa CiTv Design Decisions GATEWAY Roadway ■ Elevation — protect 1' above • 100 year floodplain • 2008 flood elevation • 500 year floodplain Bridge ■ Elevation /Backwater reduction • 100 year floodplain • 2008 flood elevation • 500 year floodplain ■ Type • Girder • Arch IOWA ciTY Roadway Level of Protection GATEWAY ■ 500 -year flood elevation +1' (protection level required for structures constructed in a floodplain) ■ 2008 flood event elevation +1' ■ 100 -year flood elevation +1' (minimum protection required for federal funding) ■ No build /existing elevation * The level of protection can been anywhere between the 100 - year and the 500 -year flood elevations Roadway Options — Pros and Cons Parameters Foster to Kimball • Flood protection /elevation • Grading impacts • Construction/ Constructability Pros and Cons Increase in elevation • Improves flood protection • Improves roadway availability • Maximizes release from reservoir • Increases grading impacts • Increases cost • More difficult to construct IOWA CITY • rg W GATEWAY ■ 10' Iowa River Trail on Dubuque St. ■ 8' sidewalk Brown to Foster ■ 10' multiuse paths on bridge ■ Split grade crossing on west side ■ 8' sidewalk both sides of Park Rd. ■ 8' clear space for pedestrian safety and snow storage y . cis d W / Iy 16 is IOWA ciTv Range of Bridge Options GATEWAY ■ Type: • Girder • Arch • Cable stayed ■ Elevation — Protection and backwater reduction ■ Common features of each bridge: • Number of travel lanes • Bike /ped /transit amenities • Bridge deck dimensions 0 Bridge Options — Pros and Cons Parameters ■ Cost • Flood protection elevation • Backwater reduction • Grading impacts at intersection • Constructability Pros and Cons ■ Arch bridge $2.5 -3 Million more ■ Arch bridge more complex ■ Increase in elevation • Improves flood protection • Improves roadway availability • Maximizes release from reservoir • Minimizes backwater • Increases grading impacts • Increases cost • More difficult to construct Influence on Backwater • Each option performs better than current bridge • No option eliminates all backwater • Girder bridge performs slightly better than an Arch bridge Construction Cost Estimate of � Combined Options Environmental Assessment, Final Design, Construction Administration and Inspection fees approximately $8 Million. Trunk sewer reconstruction not included in these costs. GATEWAY IOWA ciTv D• Nothing Optior. The following work would still need to occur: • Reconstruct North Corridor Trunk Sewer • Replace Dubuque Street pavement • Replacement / Major Repair of Park Road Bridge • Widen Park Road to three lanes to Riverside Drive • Right turn lane at SB Dubuque Street to WB Park Road • Upgrade aging water, storm sewer, lighting, overhead utilities • Cost of above: Approximately $31.7 Million IOWA CITY f]nrrwwv • :F41aI City of Iowa City Capital Improvement Program Project Category: STREETS. BRIDGES and TRAFFIC ENGINEERING M dntlTnF -L.N Tom Lan 5 e t]uW� J,]EB.WO 9A30. pares. d, Gonaand left hum laneeal mabrin Bcinods aconlmuwsonedgelle N.oupn to contlw Onwwn ..I.- Avenue a no Moey Lane 1.1.1P re plcWeeO M Mle poredt F kTGrenN wee. ai FyW. 5 ��- s FYIO 3 1�+W.gaa 5 �S- dpGOBOna. 5 - 1tGGBanoe f - f - f - s +,,.mo Neighborhood pWhl eeen Lighting 5 Furnace, 1 W.00G ..."an Poo pnd- banaull llpMa to mentnanhown nelptayr obi RFid, E FEm- f ED12 S YIO S FY11- 5 Pa. Read 3. Pa. Road Bridge Pa. V� Read Bridge i logne—lbn Impmwmenle: Replace PeM Road range d6w. f rnligura lore maMnga al Ow Park Road I DuWaw Sraal maraeulM and and a Not I,.rn lane an.0and ..a D.oatw. Park Road- Third Lane lmerwmem: Tnla Perand eccwrvnoaalw bage, may on s +.Itl.ago and! Para Roar m Nanmer by adding a caner wm lane rerwewr Lover Gil y d Rmnga Dm Tine walkway lying m n rg dde a M Road on Tnmplm Road MII awd be ngbwd al Nt ., of mia pmlacl cell ban onryncbln.1. PeM Roe. ;l, mp- -ra pgemm� in, on, f )11. FY99 fYgy Fy1g Ili FY12 co Bona, f 1.S.000 f 11 - 1,,ad.ii. J Go Bond. f it C.I. 1 IWID •I•I• cityrovee Capital Improvemment t Program Project Cedagory: PUBLIC UTILITIES C -13 mice -Fort. Naln Raplawmanl ep w"a.. r warlvwnle n.:ewnlwpwY - NlelIn nu no agnlMenl comadon potlem . veaII Y09 FEW . S 5 a3+.oh) f FM- Bea CulyM plau oo. wNen on NcM Glperl8deat aouN al NYMeY fY➢S F... 5 - larown.—kyralwadval fR+go Cookwe1.nNM Sew..yrvlw Stuey j a ]MS pmleal HII rowel d an engineeMp aluoy to oelem.lna ma bealdlay an0 -0dr o nd- ow vat amp abode of Nn Rapp CoreX wabrNed. rlwne FEW Eum cvlg EYll EY12 .I.wwarur.Faw, f I oW j S s du.kr Seem B.ww EaYNm S BtS.. B . Conelrual al arperebm groado y.bm b. me who , elwrrrwaM nlanegemenl hewn ecmr. SwtlykY pdn yp and, or eappr pan. "Ga' cvW EY39 EY1l FY13 Slwmwa dU-v F.w 5 - 5 a93.W0 f C -13 IOWA CITY GATEWAY ■ Receive FHWA approval / Finding of No Significant Impact • Determine the right balance for the following: • Dubuque Street Elevation: Level of protection versus amount of fill and related externalities • Park Road Bridge Elevation: Backwater reductions versus elevation of the Dubuque Street/ Park Road intersection • Bridge Type: Appearance and elevation advantages versus cost ■ Begin Final Design IOWA ciTY GATEWAY Council Q&A