Fish and Wildlife Connectivity Along the State Highway System

Caltrans integrates fish and wildlife considerations into the design of state highway structures to improve habitat connectivity for native fish and wildlife species. The result of sound planning, design, and implementation is a suite of aquatic and terrestrial species, many of which are threatened or endangered, that benefit from connected ecosystems as well as a highway system that efficiently moves people, goods, and services throughout California.

Guidance for Successful Fish and Wildlife Connectivity Projects

Successful fish and wildlife connectivity projects require adequate planning and continuous staff support to achieve desired goals. The six steps in the process include:

  • Using science and data to inform barrier locations with the greatest biological value.

  • Selecting the proper engineering solution after considering a variety of alternatives that maximize return on investment.

  • Obtaining adequate funding to permit, construct, and monitor the site post-construction.

  • Ensuring appropriate permits are acquired to construct the project.

  • Constructing the project.

  • Evaluating the success of the project design in meeting connectivity goals.

1
2

FUNDING

Fund priority locations

3
4
4

CONSTRUCTION

Implement project

5

MONITORING AND MAINTAINING

Successful design performance

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SALMON AND STEELHEAD CONSTRUCTION CONSIDERATIONS

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