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Bridges & Special Structures Design

Underbridge inspection units (UBIUs) that reach from above deck to below.
Department of Transportation

Bridges & Special Structures Design

Asset Management for Retaining Walls

Project Number: SPR-1676

Contract Number: 2010-0296

Status: Complete

Start Date: 10/01/2016

End Date 12/31/2019


The work described here represents an attempt to develop a comprehensive risk management framework for the asset management of retaining wall structures. The work presented includes the development of a sensing strategy that can be used by structural inspectors to assess the coupled performance of the wall structure and the geotechnical system it supports. A reliability framework was developed using first-order reliability methods (FORM) to assess the reliability factor (β) for wall components and incorporates the consequences of failure with the estimated structural reliability factors to provide a basis for risk assessment of retaining walls. A new inspection manual was developed to reflect the instrumentation strategies and risk analyses developed.





Research Manager Project Manager Performing Organization
 Staff photo of Michael Townley    University of Michigan logo
 Michael Townley Eric Burns University of Michigan