Fish & wildlife

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The Washington State Department of Transportation (WSDOT) protects fish, wildlife, and habitat resources during construction, maintenance, and operation of the state transportation system.

Endangered Species Act and Essential Fish Habitat 

Find how to prepare a Biological Assessment for work that has a federal nexus and that has an effect on federally listed species, designated critical habitat, and essential fish habitat.

Habitat Connectivity 

Learn how wildlife research contributes to the protection of fish, wildlife, and habitat resources during the operation of the state transportation system.

Use this page to comply with the Bald and Golden Eagle Protection Act and the Migratory Bird Treaty Act.

Find how to comply with the Marine Mammal Protection Act during environmental review.