Survey, Evaluation, and Long-Term Monitoring of the EDC GRS Abutment Performance for Multiple-Span CDOT Bridges Replacement Project

The Colorado Department of Transportation's (CDOT's) project to replace the twin bridges over the Union Pacific Railroad and Smith Road incorporates innovations that implement the Colorado Department of Transportation/Federal Highway Administration (CDOT/FHWA) mandate - EDC GRS (Geosynthetic Reinforced Soil) abutment technology. These twin bridges carry I-70 eastbound and westbound traffic on three-span horizontally curved steel welded-plate girder structures. The mid-span piers are founded on deep foundation; however, the GRS abutments are supported by spread footings and founded on embankments. This unique feature of a GRS transition zone, to a GRS abutment founded on an embankment (shallow foundation), to pier (deep foundation) is a new design methodology for eliminating bridge bumps. The objective of this study is to validate the performance of GRS abutment for multi-span bridges and the use of geofabric without positive connections to the fascia blocks for GRS retaining walls.


    • English


    • Status: Active
    • Contract Numbers:


    • Sponsor Organizations:

      Colorado Department of Transportation

      4201 East Arkansas Avenue
      Denver, CO  United States  80222
    • Project Managers:

      Khan, Aziz

    • Performing Organizations:

      Shannon & Wilson, Incorporated

      Seattle, WA  United States 
    • Start Date: 20131018
    • Expected Completion Date: 0
    • Actual Completion Date: 20151231
    • Source Data: RiP Project 35767

    Subject/Index Terms

    Filing Info

    • Accession Number: 01500273
    • Record Type: Research project
    • Source Agency: Colorado Department of Transportation
    • Contract Numbers: 214.05
    • Files: RIP, STATEDOT
    • Created Date: Nov 30 2013 1:00AM