1st Avenue Improvements

1st Avenue Improvements: 6th Street to 9th Street


1st Avenue between 6th Street and 9th Street will undergo total reconstruction in 2018. This is the final section of 1st Avenue that needs to be improved south of Interstate 80.

Highlights


After work is complete, this stretch of 1st Avenue will feature:
  • Four through lanes and one continuous center turn lane
  • 10 foot wide sidewalks on both sides
  • Upgraded traffic signals at E. 7th Street
  • New traffic signals at 6th Street with a new four-leg intersection at 1st Avenue and 6th Street to accommodate a future connection of E. 2nd Avenue on the east leg
  • New public utilities (storm sewer, sanitary sewer, and water main)
  • Lighting
  • Streetscaping
Finishing 1st logo

Cost


  • Bid in January 2018 IDOT letting
  • Low bid: $7,186,554.84 (Langman Construction of Rock Island, Illinois) 
  • Funding: $5.1 million of Surface Transportation Program funds, and local funds

Timeline


  • Estimated start: March 2018
  • Estimated completion: December 2018 (driving lanes, sidewalks, and traffic signals)
  • Landscaping and final work: Spring 2019

Traffic Impact


  • There will be traffic delays
  • Single lane traffic in both directions and pedestrian access along 1st Avenue will be maintained
  • Access to all businesses will be maintained
  • 6th Street will be closed between 1st Avenue and the Baymont Suites driveway from approximately early April until late July
  • The temporary traffic signals at the 1st Avenue/E. 7th Street intersection will be removed in late winter/early spring 2018 while E. 7th Street is closed and reconstructed
  • Temporary traffic signals will be installed in the summer of 2018 at the new 1st Avenue/6th Street/E. 2nd Avenue intersection during construction. This signal will provide construction access to the new E. 2nd Avenue for the Iowa Arena/UIHC Phase 2 Clinic Projects. 

Resources


Contact Us

  1. Dan Holderness


    City Engineer
    Email

    Scott Larson


    Assistant City Engineer
    Email

    1512 7th St.
    P.O. Box 5127
    Coralville, IA  52241

    Ph: 319.248.1720
    Fx: 319.248.1894

    Staff Directory
1st Ave Construction Map 2018

Pre-Project Planning


How We're Keeping Traffic Moving


To reduce traffic delays during construction:
  • Staff will monitor traffic times and adjust the timing of traffic signals as needed to help the traffic flow on 1st Avenue
  • Installed fiber optic communications at the 1st Avenue/E. 9th Street traffic signal
  • Installed pan/tilt/zoom cameras on 1st Avenue at both 5th Street and E. 9th Street, along with existing cameras at 1st Avenue/Highway 6, to remotely monitor traffic for the project corridor and beyond
  • Repositioned the traffic detection cameras at 1st Avenue/E. 9th Street to minimize false detections
  • Installing traffic detection cameras at the 1st Avenue/Interstate 80 traffic signals to replace the in-pavement traffic detection wire loops (spring 2018)

Duct Bank NB Lane 062017

Duct Banks


In anticipation of the 
project, underground duct banks were proactively constructed in 2017. These duct banks provided places for the private utilities companies to relocate their overhead and underground facilities to be out of the way before the 2018 improvement projects. The duct banks should minimize delays caused by private utility relocations, which can be common during street projects.


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