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OTIA III State Bridge Delivery Program
Environmental Baseline Reports

Each environmental baseline report contains data for a number of bridges. Generally, these bridges are all located along one section of a major transportation corridor or in closely related watersheds and sub-basins. In some cases, however, the bridges are dispersed over a rather wide geographic area.
Early in the OTIA III State Bridge Delivery Program, the Oregon Department of Transportation (ODOT) conducted an environmental baseline assessment for each bridge site in the program. The purpose of these assessments was to describe each site's environmental characteristics and to identify any environmental constraints or issues and any potential permitting concerns before bridge design and construction began. The work involved extensive field investigation, as well as data collection from federal and state natural resource agencies and local public works, planning, and parks agencies and personnel.
Collecting this data at the beginning of the program provides several benefits:
  • Design teams can develop bridge designs and choose construction methods that reduce impacts to the natural and built environments.
  • Enhancement and restoration opportunities can be identified early.
  • Early information provides the basis for more accurate cost estimates and schedules.

Baseline information was also used in developing programmatic permits and performance standards. Taken together, these advantages will improve program efficiency, increase cost-effectiveness, and achieve better overall results for the environment.
The information from these baseline assessments was compiled into a series of Environmental Baseline Reports, completed in April 2004.
For more information on Environmental Baseline Reports, visit the OBDP web site. >>