Bridge Health Index for the City and County of Denver, Colorado. II: Denver Bridge Health Index
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Volume 24, Issue 6
Abstract
Current bridge health index (BHI) in Pontis bridge management system applied to assess the bridge health conditions for 615 bridges in the city and county of Denver (CCD) does not provide CCD engineers a valuable analysis of the health condition of its relatively small bridge network. Both the calculation results and the computing methodology of the current BHI reveal that it is subjective to a municipality’s often imprecise cost data. This paper focuses on developing an alternate BHI. In order to understand the principle and procedure of the BHI calculation, the element weighting point was developed as a new concept in the analysis. The study concluded that the weighting point should reflect the effect of element damage on bridge health and function instead of a percentage of element value. Based on this conclusion, the current BHI was modified. The Denver BHI, a new diagnostic tool, was developed. It has already been adopted in the Pontis bridge management system of the CCD public works department.
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Acknowledgments
The CCD bridge management group led by James Barwick is acknowledged for several years of research support. Personnel from the CCD including James Hamblin, Bret Banwart, and William Melton provided valuable input on maintenance management of CCD infrastructure throughout the years and are acknowledged. Dr. Chengyu Li of the URS corporation and UCD assistant professor provided guidance. The writers acknowledge to the state of California and the associated publication from the original bridge health index. The UCD-CCD DBHI builds extensively from this original research. It was modified to behave fit the assessment needs of the CCD. The writers hope that this new methodology can further assist municipalities in infrastructure decision making.
References
AASHTO. (2003). Pontis bridge management release 4 technical manual, AASHTO, Washington, D.C.
Greimann, L. F., Stecker, J. H., Kao, A. M., and Rens, K. L. (1991). “Inspection and rating of miter lock gates.” J. Perform. Constr. Facil., 5(4), 226–238.
Hearn, G., Frangopol, D. M., Szanyi, T., and Marshsll, S. (1996). “Data and data inspection in bridge management systems.” Proc., ASCE Structures Congress XIV: Building an International Community of Structural Engineers, ASCE, Reston, Va., 245–252.
Jiang, X., and Rens, K. L. (2010). “Bridge health index for the city and county of Denver, Colorado. I: Current methodology.” J. Perform. Constr. Facil., 24(6), 580–587.
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Published In
Journal of Performance of Constructed Facilities
Volume 24 • Issue 6 • December 2010
Pages: 588 - 596
Copyright
© 2010 ASCE.
History
Received: Sep 3, 2009
Accepted: Feb 18, 2010
Published online: Feb 26, 2010
Published in print: Dec 2010
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