California Construction News staff writer
California is taking significant steps to improve wildlife connectivity within its extensive transportation network, thanks to a collaborative effort between Caltrans and the California Department of Fish and Wildlife (CDFW). This initiative aligns with Governor Gavin Newsom’s vision of leading the world in biodiversity protection and restoration.
Numerous proposed projects will address barriers to fish and wildlife movement, benefiting approximately 180 native, endangered, or threatened species, including Caltrans plan to construct several migration corridors adjacent to state highways and interstates.
Notable projects include a new bridge over State Route 97 in Siskiyou County, a bridge on Interstate 15 in San Bernardino County, and an enlarged culvert under Interstate 10 in Los Angeles County. The much-anticipated Wallis Annenberg Wildlife Crossing over U.S. 101 in Southern California is projected to be completed by 2026.
These efforts not only promote ecological health but also create opportunities for construction professionals to engage in projects that prioritize environmental sustainability and wildlife conservation. As California continues to lead in innovative transportation solutions, the collaboration between Caltrans and CDFW sets a precedent for integrating infrastructure development with wildlife protection.
“It is our responsibility to improve passageways for wildlife that live and migrate along our shared environment,” said Caltrans Director Tony Tavares. “The remediation efforts highlighted in this report will help us achieve a world-class transportation system that serves all people while respecting the natural world.”
The recently developed Wildlife Connectivity Report by Caltrans identifies more than 140 locations statewide where improvements can be made to enhance wildlife movement. Various species, including the Sierra Nevada yellow-legged frog, desert bighorn sheep, and San Joaquin kit fox, often face challenges due to roads and fences disrupting their natural migration patterns.
“Habitat connectivity is one of the most critical issues we’re confronting in the 21st century to maintain California’s biodiversity,” said CDFW Director Charlton H. Bonham. “We must find ways for wildlife to move safely across the landscape, preventing inbreeding and enhancing genetic diversity while mitigating risks from wildfires and climate change.”
For more information on the state’s efforts to improve wildlife connectivity, view the Fish and Wildlife Connectivity page or visit the Terrestrial Habitat Connectivity page.
