Development of degradation rates for various bridge types in the state of Ohio.

755935363Final report.PDFTech ReportFHWA/OH-2011/9134258BridgesMaintenance managementSpecial maintenance systemsMaintenanceEvaluationOhioOhio. Dept. of TransportationHunt, Victor J.Helmicki, Arthur J.Swanson, James A.University of CincinnatiOhio. Dept. of Transportation. Office of Research and DevelopmentUnited States. Federal Highway AdministrationNTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and StructuresNTL-HIGHWAY/ROAD TRANSPORTATION-Construction and MaintenanceUS Transportation CollectionThe Ohio Department of Transportation (ODOT) maintains a Bridge Management System (BMS) which isresponsible for collecting and maintaining historical and longitudinal data by year for all the bridges in Ohio. The BMS aidsODOT in tracking, design, planning maintenance requests on bridges and funds allocation for maintenance. This projectapplied statistical analysis and modeling of the BMS data to provide insights to the rate of degradation and maintenancerequirement of bridges under different environmental, location and other factors. Age resetting algorithms and Markovmodels were utilized in order to develop Operational Performance Indices (OPIs) forecasting for General Appraisal (GA),Wearing Surface (WS), Floor Condition (FC), and Protective Coating Systems (PCS). The results were validated againstthe actual values and the results were very positive. An understanding of the behavior of the existing bridges under theeffect of different conditions and their future performance is essential for the BMS. Reliable bridge prediction andperformance models facilitate inspection scheduling, cost analysis and budget optimization