State departments of transportation have constructed many environmental mitigation projects in conjunction with transportation projects that have been implemented pursuant to the National Environmental Policy Act. In order for the environmental mitigation projects to continue to provide the long term functionality that was intended when they were first constructed, they must be properly maintained, and when necessary rehabilitated or reconstructed. Several states are beginning to use an asset management approach for inventorying the condition of environmental mitigation features and making decisions on maintenance and capital improvement needs for these features. This research proposes steps that owners of these features should undertake in developing asset management systems for the various types of environmental features.
The contractor's final report for the project is posted at http://www.trb.org/NotesDocs/25-25(51)_FR.pdf