Malibu

Construction underway in Malibu for steelhead trout bridge

The Caltrans project will replace a concrete culvert at the intersection of PCH and Corral Canyon Road with an eco-bridge, aiding the steelhead trout population.

The culvert at PCH and Corral Canyon Road currently blocks steelhead trout from accessing habitat upstream. Photo by Caltrans.
Caltrans District 7

Construction is currently underway to replace a concrete culvert at the intersection of Pacific Coast Highway (PCH) and Corral Canyon Road with an eco-bridge, Caltrans announced on social media Tuesday.

The project, which aims to help the local endangered steelhead trout population, is part of a larger $62.2 million initiative to improve stormwater drainage infrastructure, while reconstructing 13 culverts in order to restore passageways for the fish, on PCH from Pacific Palisades to Ventura County.

Steelhead trout were once found abundantly across the Pacific Coast. However, the species has been federally designated as endangered since 1997 and has only continued to decline.

According to California Trout, a non-profit dedicated to conserving wild fish, southern steelhead trout populations are even in danger of going extinct within the next 25 to 50 years due to various human and environmental impacts.

The organization Cal-Trout estimates that only about 500 steelhead adults are remaining in a region that stretches from San Luis Obispo to the border. Gordon Tokumatsu reports for the NBC4 News on April 22, 2024.

Steelhead trout are born in freshwater ecosystems and can spend their entire lives in freshwater. However, some choose to migrate downstream to the ocean — and are then often unable to make the necessary journey back to freshwater in order to reproduce due to manmade barriers like culverts.

The Corral Canyon project is particularly concerned with restoring the fish’s access to upstream habitat in Solstice Creek, a freshwater ecosystem where the trout can reproduce. 

The bridge is expected to be complete by the end of this year.

Contact Us