Culvert information management system demonstration project : final report, August 2009

657333647Final report.PDFTech ReportFHWA-NJ-2009-017Corrugated metal culvertsCorrugated pipe culvertsCorrugated steelInformation managementNew JerseyNew Jersey. Dept. of TransportationMeegoda, Jay N.Juliano, Thomas M.Tang, ChiNew Jersey Institute of TechnologyNew Jersey. Dept. of Transportation. Division of Research and TechnologyUnited States. Federal Highway AdministrationNTL-ENERGY AND ENVIRONMENT-Environment ImpactsNTL-HIGHWAY/ROAD TRANSPORTATION-Bridges and StructuresNTL-HIGHWAY/ROAD TRANSPORTATION-Construction and MaintenanceNTL-HIGHWAY/ROAD TRANSPORTATION-DesignUS Transportation CollectionThe overall objective of the research was to develop a pilot scale Culvert Information Management System (CIMS) that willcomply with both requirements stipulated by the Governmental Accounting Standards Board (GASB-34) and new federalstorm water regulations. A framework for inspection and rehabilitation/replacement of corrugated steel culvert pipes (culverts)is developed, and this report will form the basis for the creation of a computerized CIMS. The justification of the developmentof the CIMS is based on recent GASB-34 requirements. The CIMS will serve as a vehicle for evaluating undergroundinfrastructure assets, specifically culverts, and facilitate computing present worth and comparing present costs of preservingthem. Benefits of the CIMS will include long-term savings that should accrue from adopting optimized preventivemaintenance strategies.The Condition States of culverts are used to express the extent of their deterioration. Different rehabilitation options arediscussed and recommendations are made for deteriorated culverts. These options that will be incorporated into the CIMS,use survival probabilities based on the condition state of culverts. The survival probabilities for being in Condition States 1, 2,3 or 4 are computed based on minimal field data. However, the CIMS requires additional field data for culverts or laboratorytests that mimic field conditions to enhance this capability.The CIMS is capable of analyzing decisions to inspect, rehabilitate/replace or do nothing at both project and network levels.At the project level this is achieved by comparing inspection and/or rehabilitation/replacement costs with risks and costsassociated with failure. At the network level, the associated costs are optimized to meet annual maintenance budgetallocations by prioritizing culverts needing inspection and rehabilitation/replacement.The CIMS consist of three major computer software components: databases, user interfaces, and a data administrationmodule. Secondary components include an inlet/outlet structures module and a culvert segments module. The inlet/outletstructures module will store all the storm water data such as the quality/quantity of water and the receiving and dischargewatersheds. Users will be able to retrieve culvert and inlet/outlet information and generate reports via location androad/milepost for condition state and assets needing immediate repair. The CIMS will also do the following operations:\ue2\u20ac\ua2 Maintain an up-to-date inventory of eligible infrastructure assets.\ue2\u20ac\ua2 Perform condition assessments of eligible infrastructure assets at least every three years, using a replicable basisof measurement and measurement scale.\ue2\u20ac\ua2 Summarize the results, noting any factors that may influence trends in the information reported.\ue2\u20ac\ua2 Estimate yearly the annual amount needed to maintain and preserve the eligible infrastructure assets at or above aprescribed level