Late Life Low Cost Deck Overlays TR-775

The primary objective of this study is to identify a late-life bridge deck overlay system that will provide a sufficient service life extension but will be more cost-effective and require less closure time than conventional overlays currently used by the Iowa DOT. The most promising late-life deck overlay system will be identified by comparing benefit-cost ratios reported by other state DOTs and based on experience. Overlays with years of experience as well as innovative materials with promise for future implementation will be identified. Drafts of a standard special provision specification and design details will be provided to the Iowa DOT. This will help the Iowa DOT further improve the economic efficiency of its infrastructure maintenance practices. This study will additionally identify information missing in literature and provide guidance for the development of low-cost, late-life bridge deck overlays in any future studies that may be conducted. The following tasks have been identified to accomplish the objectives of this project:Task 1. Kick-off Meeting with TAC; Task 2. Literature Review of Overlay Systems Including Other States Practices; Task 3. Quantification of Costs, Traffic Impacts and Service Life of the Overlay Systems; Task 4. Identification of Best Candidates for Limited Life and Cost Effective Overlay Systems; Task 5. Documentation of Standard Details and Specifications for Identified Overlay Systems; and Task 6. Final Report and Project Final Presentation.


    • English


    • Status: Active
    • Funding: $50000
    • Contract Numbers:


    • Sponsor Organizations:

      Iowa Department of Transportation

      800 Lincoln Way
      Ames, IA  United States  50010
    • Managing Organizations:

      Wiss, Janney, Elstner Associates, Incorporated

      330 Pfingsten Road
      Northbrook, IL  United States  60062
    • Project Managers:

      Goetz, Vanessa

    • Performing Organizations:

      Iowa Department of Transportation

      800 Lincoln Way
      Ames, IA  United States  50010
    • Principal Investigators:

      ElBatanouny, Mohamed

    • Start Date: 20190401
    • Expected Completion Date: 20200228
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01700762
    • Record Type: Research project
    • Source Agency: Iowa Department of Transportation
    • Contract Numbers: TR-775
    • Files: RIP, STATEDOT
    • Created Date: Apr 1 2019 10:36AM