Details:

Creators:
Adams, Teresa M. ; Kang, Myungook (MK)
Adams, Teresa M. ; Kang, Myungook (MK) Less -
Corporate Creators:
Midwest Regional University Transportation Center
Corporate Contributors:
Wisconsin. Dept. of Transportation. Social Media Peer Exchange Planning Team
Subject/TRT Terms:
[+]
Bridges Bridges--Wisconsin--Maintenance And Repair Maintenance Repairing
Publication/ Report Number:
MRUTC 08-07
Resource Type:
Tech Report
Geographical Coverage:
Wisconsin
Abstract:
Bridge Health Index (BHI) is a bridge performance measure based on the condition of the bridge elements. It

is computed as the ratio of remaining value of the bridge structure to the initial value of the structure. Since it

is expressed as a percentage value, the BHI could provide an intuitive measure for bridge engineers, and

legislators. The BHI could be converted to another measure such as color (red, yellow and green) that public

understands better. The Pontis user group was surveyed to determine the current use of the BHI and other

measures for bridge management decision making.

This study focused on understanding the sensitivity of the BHI to small and large changes in the element

failure costs and the element condition, the two input data sets for computing the BHI. For these sensitivity

analyses, 221 bridges were selected from Wisconsin’s inventory. The study looked at bridges with simple

and continuous span prestressed concrete girders. The findings can guide state agencies and practitioners

with a sense of how BHI responds to changing bridge condition as well as element failure costs.

The element failure costs were acquired from a previous study by a consultant to the FHWA and the element

level inspection data were from the Wisconsin Department of Transportation (WisDOT).

The analysis considered the impact of Smart Flags used to identify local problems that are not reflected in the

element condition states. Because they may indicate critical defects in the bridges, they should be reflected

for BHI. To investigate the impact of Smart Flags, computation rules suggested by the Kansas DOT were

applied to the selected bridges in Wisconsin.


Format:
PDF
Collection(s):
US Transportation Collection University Transportation Centers
Main Document Checksum:
[+]
urn:sha256:bfed5f373c376ba26be85a422692c1038a9b48b09ff16f42227722a96a4137c2
Download URL:
https://rosap.ntl.bts.gov/view/dot/17500/dot_17500_DS1.pdf
File Type:

Supporting Files

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