Developing Bridge Scour Equations for Colorado Mountain Streams

The primary objective of this study is to provide a technical tool to compute bridge scour in steep mountain channels. The Colorado Department of Transportation (CDOT) builds and maintains many roadway projects with bridges that cross rivers and small streams. CDOT currently uses Federal Highway Administration's (FHWA's) HEC-18 methods to estimate bridge pier and abutment scour values, but HEC-18 equations were developed using hydraulic conditions for flat channels. The equations developed in this study will be applicable to the range of slopes, velocities, and depths encountered in bridges crossing steeper Colorado streams.


    • English


    • Status: Active
    • Contract Numbers:


    • Sponsor Organizations:

      Colorado Department of Transportation

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

      Khan, Aziz

    • Performing Organizations:

      Colorado State University, Fort Collins

      Fort Collins, CO  USA  80523
    • Principal Investigators:

      Molinas, Albert

      Thornton, Cristopher

    • Start Date: 20130516
    • Actual Completion Date: 20160630
    • Source Data: RiP Project 35765

    Subject/Index Terms

    Filing Info

    • Accession Number: 01500275
    • Record Type: Research project
    • Source Agency: Colorado Department of Transportation
    • Contract Numbers: 106.04
    • Files: RiP
    • Created Date: Nov 30 2013 1:00AM