Endangered Species Act

Oregon Department of Transportation Biological Assessments

Oregon Department of Transportation
Various Locations, Oregon

Hart Crowser has completed multiple natural resources projects statewide for the Oregon Department of Transportation related to the Endangered Species Act, fisheries, culvert replacement and fish passage improvements, wildlife, exotic species, and water quality. We have prepared BAs and “No Effect” documentation under Section 7 of the ESA to determine the potential for impacts to listed fish and wildlife species from highway and bridge construction projects.




Biological Assessment, Thea Foss Waterway

City of Tacoma
Tacoma, Washington

Hart Crowser produced an Addendum to the NMFS-prepared Biological Assessment that evaluated the effects that remediation activities would have on Endangered Species. The project met severe time constraints; permitting had to be completed before approved work windows opened. Cleanup of contaminated sediments at this Superfund site has now been completed.