Two Tidal Habitat Restoration Projects in Solano County Support Delta Smelt Survival

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The California Department of Water Resources (DWR) just announced that state, federal and local agencies came together last week to celebrate two tidal habitat restoration projects in Solano County that support the survival of delta smelt and other fish species as part of the long-term operation of the state water project.

Bradmoor Island and Arnold Slough, two neighboring projects in the Suisun Swamp, are designed to provide high-quality habitat and food sources for fish in the Sacramento-San Joaquin Delta.

This event celebrated the completion of the Arnold Slough project and the start of construction on Bradmoor Island.

“As drought and climate change continue to strain California’s natural systems, these native fisheries support projects become even more vital. We are thrilled that they are also adding new recreational opportunities for Californians to enjoy the beauty and bounty of the California Delta,” said Karla Nemeth, Director of DWR.

Construction at Arnold Slough was completed in the fall of 2021 and restored approximately 161 acres of managed wetlands to tidal wetlands.

Construction work included the demolition of infrastructure, three dyke breaches, filling of ditches to the elevation of the marsh plain, and leveling of the outer dyke segments to allow for crossing at high tide.

Work at Arnold Slough also predicts resilience to climate change by taking into account sea level rise.

Bradmoor Island is a larger project that will restore approximately 490 acres of managed wetlands in a tidal marsh while providing new recreational opportunities for the public.

Before construction began, steps were taken to control invasive species to prepare the site for restoration.

Construction on Bradmoor Island is due to start this month and includes the demolition of infrastructure and buildings, as well as the excavation of five seawall breaches to restore tidal flow to the site.

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