Atascadero Creek Sedimentation Analysis and Fish Passage Restoration 65% Design Project
Project Overview
Basics
Atascadero Creek Sedimentation Analysis and Fish Passage Restoration 65% Design Project
Planning/Design
The main objective of this project is to develop 65% of the design plans for the removal of the accumulated sediment to improve water quality and enhance aquatic habitat for migrating salmonids and other wetland riparian species. This project will address rapid sedimentation that has occurred in lower Atascadero Creek above its confluence with Green Valley Creek. Other objectives include monitoring current Coho Salmon usage and migration at the site, investigating issues of sediment removal, investigating current and projected hydrology, and characterize the current and projected water quality effects on the potential for salmonid habitat.
2020
2020
11/28/2023
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)
None
Tribal Engagement
None
Location
Organizations
| Funder | |
| Lead Implementer | |
| Partners | |
| Primary RCD | |
| Other Partners | California Sea Grant, O'Connor Environmental, Inc (OEI), Streamline Engineering, Stillwater Sciences |
Contacts
Performance Measures
Expected Performance Measures
| Habitat Restoration/Creation | Action Taken: Restored Habitat Type: Other sensitive habitat | 44 acres |
| Special Status Fish Species Habitat | Action Performed: Restored Focal Species: coho salmon - southern Oregon / northern California ESU Habitat Type: Migration Listing Status: State Endangered | 4,500 lf |
Reported Performance Measures
Reported Performance Measures are not relevant for Projects in the Planning/Design stage.
Financials
Budget
| Comment: | None provided |
|---|
Reported Expenditures
| 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | Total | |
|---|---|---|---|---|---|---|---|
| CDFW Cooperative Endangered Species Conservation Fund (Section 6) Grant (CDFW) | $96,275.21 | $155,126.06 | $153,969.55 | $30,389.19 | $0.00 | $0.00 | $435,760.01 |
| Grand Total | $96,275.21 | $155,126.06 | $153,969.55 | $30,389.19 | $0.00 | $0.00 | $435,760.01 |
| Note: | None provided |
|---|
Project Themes
Project Themes
One of the main goals of this project is to remove the flow blockage caused by the sediment aggradation in areas along the reach. This will improve the water quality when juvenile Coho Salmon are present and enhance the overall aquatic habitat for migrating salmonids and other riparian species.
In the analysis for this project it was revealed that a sediment aggradation had transformed the historic seasonal wetland into perennial marsh with open water that has low dissolved oxygen concentrations due to reduced hydrologic interactions. The investigation and intention of removing the sediment will improve/restore that wetland to its more natural state.
Project Details
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