The URL can be used to link to this page

Home My WebLink AboutJanuary 21, 2014 presentation to CouncilCity Council Work Session January 21, 2014 Tonight’s Objective: Establish the Primary Design Parameters for the Project •Work Session Review City Council Process to Date Review Recent Activities for NEPA Process Review the Process as we Move Forward with Design Review Staff Recommendations Outline the Resolution and Options Answer Additional Questions from Council •Formal Meeting Outline Staff Recommendations Public Input Consider Resolution Establishing Primary Design Parameters September 17, 2013 Work Session •Reviewed the project and Environmental Assessment Process •Identified three primary design parameters that will need to be decided to move into the design phase •Answered Questions October 1, 2013 •Work Session: Reviewed the three primary design parameters and staff’s recommendations. Answered questions. •Formal Meeting: Held Public Hearing for input on the project. No action item on the agenda. January 21, 2014 •Work Session: Review the process, parameters and recommendations. Answer questions. •Formal Meeting: Additional public input. Consider resolution establishing the three primary design parameters. 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 Iowa City Historic Preservation Commission confirmed support, fall 2013 Received FHWA Finding of No Significant Impact December 2013 Started April 2010 Two public meetings: 250+ attendees Drop-in center + online public meeting Public hearing/drop-in center Multiple paid ads Multiple media stories 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* *Will continue in the design process 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 Received Federal approval Level of protection for Dubuque Street •2008 event + 1’ Backwater reduction goals (Elevation of Park Road Bridge): •Low Steel at 200 year event +1’ Structural type of the bridge •Deck Girder or Through Arch Level of Protection Estimated # of days closed in the past 20 years due to Iowa River flooding Relative Comparison: Inches above/below the 2008 + 1’ protection level Existing 150 NA 100 year + 1’ 7* -39” 200 year + 1’ 5* -11” 2008 flood + 1’ (Recommended) 0 0” 500 year + 1’ (EA Preferred Alt) 0 +19” *Including one day for cleanup, inspection and repair after inundation Bridge Type Low Steel Elevation Backwater Reduction at Idyllwild Incremental Improvement in Backwater Reduction Deck Elevation Incremental Height of Bridge Deck Constructi on Cost Estimate with Dubuque at 100yr + 1’ Constructi on Cost Estimate with Dubuque at 200yr + 1’ Construction Cost Estimate with Dubuque at 2008 + 1’ Construction Cost Estimate with Dubuque at 500yr + 1’ Deck Girder 100yr + 1’ 3.4” 660.20 $32.67 M $34.26 M Deck Girder 200yr + 1’ 6.1” 2.7” 662.52 27.8” $34.63 M $35.01 M Deck Girder 2008 + 1’ 6.6” 0.5” 663.45 11.2” $33.41 $35.17 M Deck Girder 500yr + 1’ 7.0” 0.4” 665.03 19.0” $34.20 M $35.01 M $35.34 M $36.65 M EA Preferred Alternative Deck Arch 100yr + 1’ 3.6” 659.20 $36.01 M $37.59 M Deck Arch 200yr + 1’ 4.7” 1.1” 661.52 27.8” $37.96 M $38.34 M Deck Arch 2008 + 1’ 5.2” 0.5” 662.45 11.1” $36.71 M $38.48 M Deck Arch 500yr + 1’ 5.6” 0.4” 664.03 19.0” $36.94 M $38.33 M $38.66 M $39.98 M Through Arch 100yr + 1’ 3.4” 656.87 $35.99 M $37.58 M Through Arch 200yr + 1’ 4.9” 1.5” 659.02 25.8” $37.93 M $38.31 M Through Arch 2008 + 1’ 5.2” 0.3” 659.95 11.1” $36.70 M $38.47 M Through Arch 500yr + 1’ 5.8” 0.6” 661.53 19.0” $36.90 M $38.30 M $38.63 M $39.60 M Option Bridge Type Low Steel Elevation Elevation at the Dubuque St/Park Rd Intersection Backwater reduction at Idyllwild and Taft Speedway Dubuque Street Protection Level Construction Cost Estimate of Bridge and Road Max. protection and backwater reduction (EA Preferred Alt) Deck Girder 500yr + 1’ 665.03 7” 500yr + 1’ $36.65M Recommended Arch Through Arch 200yr + 1’ 659.02 4.9” 2008 + 1’ $38.31M Recommended Girder Deck Girder 200yr + 1’ 662.52 6.1” 2008 + 1’ $35.01M Questions? Bridge Type Low Steel Elevation Backwater Reduction at Idyllwild Incremental Improvement in Backwater Reduction Deck Elevation Incremental Height of Bridge Deck Constructi on Cost Estimate with Dubuque at 100yr + 1’ Constructi on Cost Estimate with Dubuque at 200yr + 1’ Construction Cost Estimate with Dubuque at 2008 + 1’ Construction Cost Estimate with Dubuque at 500yr + 1’ Deck Girder 100yr + 1’ 3.4” 660.20 $32.67 M $34.26 M Deck Girder 200yr + 1’ 6.1” 2.7” 662.52 27.8” $34.63 M $35.01 M Deck Girder 2008 + 1’ 6.6” 0.5” 663.45 11.2” $33.41 $35.17 M Deck Girder 500yr + 1’ 7.0” 0.4” 665.03 19.0” $34.20 M $35.01 M $35.34 M $36.65 M EA Preferred Alternative Deck Arch 100yr + 1’ 3.6” 659.20 $36.01 M $37.59 M Deck Arch 200yr + 1’ 4.7” 1.1” 661.52 27.8” $37.96 M $38.34 M Deck Arch 2008 + 1’ 5.2” 0.5” 662.45 11.1” $36.71 M $38.48 M Deck Arch 500yr + 1’ 5.6” 0.4” 664.03 19.0” $36.94 M $38.33 M $38.66 M $39.98 M Through Arch 100yr + 1’ 3.4” 656.87 $35.99 M $37.58 M Through Arch 200yr + 1’ 4.9” 1.5” 659.02 25.8” $37.93 M $38.31 M Through Arch 2008 + 1’ 5.2” 0.3” 659.95 11.1” $36.70 M $38.47 M Through Arch 500yr + 1’ 5.8” 0.6” 661.53 19.0” $36.90 M $38.30 M $38.63 M $39.60 M