Development of a Life-Cycle Cost Analysis Tool for Improved Maintenance and Management of Bridges

(2020) Development of a Life-Cycle Cost Analysis Tool for Improved Maintenance and Management of Bridges. Transportation, Department of

[img]
Preview
PDF
TR-737_Final_Development of a Life-Cycle Cost Analysis Tool for Improced Maintenance.pdf

File Size:2MB
[img]
Preview
PDF
TR-737_Tech Brief_Development of a Life-Cycle Cost Analysis Tool for Improced Maintenance.pdf

File Size:867kB

Abstract

The Moving Ahead for Progress in the 21st Century Act (MAP-21) of 2012 requires states to develop and implement a transportation asset management plan (TAMP) for their respective portions of the National Highway System (NHS). Life-cycle cost and risk management analyses must be included in a state’s TAMP. As defined in the 1998 Transportation Equity Act for the 21st Century (TEA-21), life-cycle cost analysis (LCCA) is “a process for evaluating the total economic worth of a usable project segment by analyzing initial costs and discounted future costs, such as maintenance, user costs, and reconstruction, rehabilitation, restoring, and resurfacing costs, over the life of the project segment.” The main objective of this research project was to develop a LCCA tool for Iowa’s bridges based on survival analysis of condition ratings. This tool was designed to cover the most common types of bridges in Iowa while integrating historical data from maintenance crews, contractors, and past inspections into the predictive models that account for the costs of maintenance and repair during a bridge’s service life. The tool developed in this project provides a user friendly way to evaluate and compare maintenance costs for bridge decks over the lifetime of a bridge. With this information, transportation investment decisions can be made in consideration of all of the maintenance costs incurred during the period over which the maintenance alternatives are being compared.

Item Type: Departmental Report
Keywords: bridge condition ratings, bridge decks, bridge maintenance, life-cycle cost analysis
Subjects: Transportation > Bridges and tunnels
Transportation > Maintenance and preservation
ID Code: 33246
Deposited By: Cheryl Cowie
Deposited On: 05 Aug 2020 15:32
Last Modified: 05 Aug 2020 15:32
URI: http://publications.iowa.gov/id/eprint/33246