California Lake County Civic Plus #272224

Clover Creek Diversion Channel vegetation removal, sediment excavation, and habitat restoration

Lake County is seeking a contractor to restore and maintain about 0.9 miles of the Clover Creek Diversion Channel near Upper Lake, California. - Government buyer: County of Lake, through the Lake County Watershed Protection District and Department of Water Resources. The solicitation identifies Tyler Lindberg, Water Resources Program Coordinator, as the District contact. - Project scope: Remove invasive vegetation and accumulated sediment, handle and haul excavated material, and stabilize and restore disturbed channel areas. Roots and root balls in the channel bottom must be removed to the extent practical. - Important scope revision: Addendum No. 1 removes temporary water diversion and cofferdam work from the planned scope. Work is preferred when the creek is dry; any later change involving diversion or cofferdams requires District review and approval. - Materials and disposal: The County provides riprap for two identified scour locations; contractor installation is compensated at approximately $2,000 per location. Vegetation is taken to a County-owned disposal lot, where the County handles burning. The contractor is responsible for handling and hauling sediment, gravel, and debris. - Notable requirements: Coordinate ground-disturbing work with tribal cultural-resource monitoring, comply with California prevailing-wage requirements, and hold the required contractor license. The project is intended to improve habitat for the threatened Clear Lake hitch and reduce flooding risks. - Budget and duration: Estimated project budget is approximately $125,000; work is anticipated to take one month or less. - OEMs and vendors: No OEMs or commercial vendors are identified. Caltrans is referenced in connection with a mitigation plan for a separate transportation project, not as a supplier.

Description

The County of Lake is seeking sealed proposals from a qualified contractor for vegetation removal, sediment removal, and related channel maintenance in the Clover Creek Diversion Channel near Upper Lake, California. Work covers approximately 0.9 miles upstream of the channel’s confluence with Middle Creek; final project limits will be established by the County in the field. The project is intended to improve channel conveyance, reduce sediment-related flooding, and enhance habitat for the threatened Clear Lake hitch, with tribal cultural resources monitoring during ground-disturbing activities. The estimated budget is approximately $125,000, and Addendum No. 1 states that a 5% bid bond is required and that the awardee must provide 100% performance and payment bonds.

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