Increase Service Life at Bridge Ends through Improved Abutment and Approach Slab Details and Water Management Practices

Project Details
STATUS

In-Progress

PROJECT NUMBER

17-605 TR-722 state

START DATE

04/01/17

END DATE

03/31/20

RESEARCH CENTERS InTrans, BEC, CTRE
SPONSORS

Iowa Department of Transportation
Iowa Highway Research Board

Researchers
Principal Investigator
Behrouz Shafei

Faculty Affiliate

Co-Principal Investigator
Brent Phares

Bridge Research Engineer, BEC

About the research

The objectives of this research project are as follows:

  • Collect, process, and summarize relevant information regarding the current practice of the use of integral abutments, semi-integral abutments, tied approach slabs, erosion control/water management at bridge ends, and corrosion control at bridge ends with a particular focus on techniques and strategies aimed at increasing service life. This will be achieved based on a comprehensive literature review, survey of state DOTs, and inspection of selected bridges in Iowa.
  • Develop a document describing recommended design guidelines and details for integral abutments, semi-integral abutments, tied approach slabs, erosion control at bridge ends, and corrosion control at bridge ends. This will be obtained by compiling a list of successful practices and details supported by small-scale laboratory testing and/or computer modeling as needed.
  • Evaluate the identified options and developed recommendations through monitoring the construction and performance of the bridge ends at a demonstration bridge for (at least) one year.
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