Wadulh Lagoon Tidal Wetland Enhancement Project
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Project Overview
Basics
Wadulh Lagoon Tidal Wetland Enhancement Project
Planning/Design
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.
2023
2025
2026
7/11/2025
Project Attributes
Census Tract Income
None
Direct Benefits to Disadvantaged Communities (DACs)
None
EnviroScreen
None
Free and Reduced Lunch
None
Indirect Benefits to Disadvantaged Communities (DACs)
None
Tribal Engagement (True/False)
True
Tribal Engagement
None
Location
Organizations
Contacts
Performance Measures
Expected Performance Measures
| Habitat Restoration/Creation | Action Taken: Restored Habitat Type: Salt marsh | 48.6 acres |
| Invasive Species Control | Land Use: Farm/Ranch Property Ownership: Federal Site Type: Terrestrial Treatment Type: Mechanical | 12 acres |
| Special Status Fish Species Habitat | Action Performed: Restored Focal Species: chinook salmon - California coastal ESU Habitat Type: Rearing Listing Status: Federally Threatened/State Threatened | Not Provided |
| Special Status Fish Species Habitat | Action Performed: Restored Focal Species: steelhead - northern California DPS Habitat Type: Rearing Listing Status: Federally Threatened | Not Provided |
| Special Status Fish Species Habitat | Action Performed: Restored Focal Species: coho salmon - southern Oregon / northern California ESU Habitat Type: Rearing Listing Status: Federally Threatened/State Threatened | Not Provided |
| Special Status Fish Species Habitat | Action Performed: Restored Focal Species: tidewater goby Habitat Type: Rearing Listing Status: Federally Endangered/State Endangered | Not Provided |
Reported Performance Measures
Reported Performance Measures are not relevant for Projects in the Planning/Design stage.
Financials
Budget
| Comment: | None provided |
|---|
Reported Expenditures
| 2022 | 2023 | 2024 | 2025 | 2026 | Total | |
|---|---|---|---|---|---|---|
| Coastal Conservancy (SCC) | $0.00 | $0.00 | $111,549.24 | $0.00 | $0.00 | $111,549.24 |
| National Coastal Wetlands Conservation Grant Program (USFWS) | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Grand Total | $0.00 | $0.00 | $111,549.24 | $0.00 | $0.00 | $111,549.24 |
| Note: | Grant funds are combined. SCC is holding the USFWS funds. Both SCC and USFWS are combined into one grant agreement contract. Therefore, it is difficult to tease apart SCC vs USFWS expenditures. |
|---|
Project Themes
Project Themes
The removal of the dike will result in resiliency to changing ocean conditions and sea level rise. Restoration of the salt marsh will improve the ecosystem services including carbon sequestration.
Wiyot Tribe: Youth Education Day; Invasive Removal, Eco-cultural Interpretation.
Redwood Region Audubon Society: Guided bird-watching field trips, 2 per year.
Friends of the Dunes: Guided tours of the project, 2 per year, assistance with interpretive signage
The loss of salt marsh habitat within Humboldt Bay is an important factor contributing to the decline of salmon and steelhead, and many other fish species, including coastal cutthroat trout, and numerous plant and wildlife species, including Lyngbye’s sedge, Bald Eagle, Peregrine Falcon, Kestrel, Merlin, Sharp-shinned and Cooper’s Hawks, and Northern Red legged frog. Restoring the diked and drained salt marsh and intertidal areas will provide nursery habitat and fish passage for federally and state listed fish species and habitat for shorebirds and raptors.
Project Details
Attachments
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External Links
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