Letts Lake Dam Repair Project
The Forest Service proposes to repair the Upper Letts Lake Dam that was found to be structurally compromised after the 2018 Ranch Fire. Lake will be drawn down to existing coffer dam and Dam embankment, outlet, spillway, and stilling basin repaired.
Project Summary
Current Status:
Completed
Location Summary:
The project is in Colusa County within the Mendocino National Forest at Upper Letts Lake in T17N, R8W, Sections 24 and 25, M.D.M. The project will occur at the northwestern end of Upper Letts Lake.
Project Milestones:
| Milestone | Date |
|---|---|
| Scoping Start | 08/29/2022 |
| Decision | 04/2023 (Estimated) |
| Implementation | 05/2024 (Estimated) |
Expected Analysis Type:
Decision Memo
Categorical Exclusion:
32.2 (22), 36 Cfr 220.6(E)(22)
Special Authority:
Not Applicable / Other
Lead Management Unit:
Grindstone Ranger District
Notice and Comment Regulation:
Not Subject to Regulations
Project Purpose:
Facility Management; Land Ownership Management; Recreation Management
Project Activity:
Facility Improvements/Construction; Facility Maintenance
Project Decision Information
Letts Lake Dam Repair Project
Decision Signed Date: 04/10/2023
Forests:
Mendocino National Forest
Districts:
Grindstone Ranger District
States:
California
Counties:
Colusa
Legal Land Description:
T17N, R8W, Sections 24, 25
Use the widget below to browse documents associated with this project. Cookies must be enabled to use this tool.
If you are using a mobile device, the setting for "Allow cross-website tracking" must also be enabled to view the documents. You do not need to sign up or login to Box to view documents, but if you have difficulty accessing the documents on a mobile device, you may choose to sign up for a free account, download the app to your device and log in to ensure that you can open the documents.
Alternatively, these documents can be accessed on the Pinyon Public website: View Documents on Pinyon Public
Casey Collins
825 North Humbolt Avenue
Willows, CA 95988
530-934-1148
Casey.Collins@usda.gov
Last Updated: 4/10/2023