Wadulh Lagoon Tidal Wetland Enhancement Project
Program
Fish Habitat Restoration
Primary RCD
Humboldt County Resource Conservation District
Lead Implementer
Humboldt County Resource Conservation District
Funders
California State Coastal Conservancy, U.S. Fish and Wildlife Service
Project Primary Contact
Jill Demers (jillhcrcd@gmail.com)
Project Stage
Planning/Design
Duration
2025 - 2026
Estimated Total Cost
$1,161,906.00
Secured Funding
$1,161,906.00
No Funding Source Identified Yet
$0.00
Targeted Funding
$0.00
Wildlife Habitat Improvement
Fish Habitat Restoration
The HCRCD is partnering with the Humboldt Bay National Wildlife Refuge (HBNWR) to restore a 78-acre parcel on Mad River Slough in Humboldt Bay. The restoration project will include the re-establishment of tidal channels, eelgrass beds, and salt marsh. These components will provide significant off-channel and nursery habitat. Overall, the project will restore historical wetland types, increase adaptation to sea level rise, and provide habitat and wildlife protection. The project will assist in the recovery of threatened and endangered fish species, as well as special-status birds, amphibians, and plant species.
Targeted Performance Measure
- Habitat Restoration/Creation: 48.60 acres
- Invasive Species Control: 12.00 acres
- Special Status Fish Species Habitat
Project Themes
- Climate Change
- Education
- Wildlife/Endangered Species
Wadulh Lagoon 1870 Conditions
Credit: Humboldt County Resource Conservation District
Location
Budget
$354,916.00 Secured Funding: Coastal Conservancy (SCC)
$806,990.00 Secured Funding: National Coastal Wetlands Conservation Grant Program (USFWS)
Photos
Wadulh Lagoon Existing Conditions (Timing: Before)
Credit: Humboldt County Resource Conservation District
Wadulh Lagoon Construction Actions (Timing: During)
Credit: U.S. Fish and Wildlife Service Coastal Program
Wadulh Lagoon Habitat Projection (Timing: After)
Credit: U.S. Fish and Wildlife Service Coastal Program
Project last updated 7/11/2025