Siskiyou County Municode #RFP #2026-205011-01

Box Canyon Dam Generator Replacement Project – 100kW Generator, ATS, and Site Upgrades

This opportunity involves the replacement of the generator system at Box Canyon Dam in Mount Shasta, CA for the Siskiyou Power Authority. - Government Buyer: - Siskiyou Power Authority (Siskiyou County) - OEMs (Original Equipment Manufacturers) Mentioned: - Kohler (Rehlko) - Generac - Caterpillar - Onan - Blue Star - Products and Equipment Requested: - 100kW diesel generator with sound-attenuating snow enclosure and 433-gallon sub-base fuel tank - Automatic Transfer Switch (ATS), 250A, with adjustable timers and control features - Concrete pad (approx. 4'8" x 12'2") - Steel canopy structure with metal roofing and galvanized framing - Generator yard chain link fencing with gates - Steel framed access stairs with grip strut treads and galvanized guardrails - Electrical panelboards, circuit breakers, disconnect switches, and wiring devices - Conduit, conductors, and other electrical equipment - Services Requested: - Site grading and drainage improvements - Demolition and removal of existing stairs and railing - Installation of new steel stairs and railing - Electrical infrastructure upgrades from generator to main transfer switch - Electrical work to add trolley motor to backup power supply - Unique or Notable Requirements: - Generator must comply with NFPA-110, UL standards, and seismic requirements - Strict adherence to Greenbook 2024 Edition and all local, state, and federal codes - Mandatory pre-bid walk-through for all bidders - Class A California Contractors license and prevailing wage compliance required - Coordination with owner-supplied equipment and among trades - Project awarded as a single prime contract (lump-sum or unit-price) - Estimated Construction Cost: - $1,080,000 to $1,390,000 - Place of Performance: - 2623 WA Barr Road, Mount Shasta, CA 96067 (Box Canyon Dam)

Description

The Siskiyou Power Authority is soliciting sealed bids for the construction of the Box Canyon Dam Generator Replacement Project located at 2623 WA Barr Road, Mount Shasta, CA. The project scope includes site grading and drainage improvements, installation of a concrete pad and new generator, generator canopy structure, yard fencing, demolition and replacement of concrete access stairs with steel framed stairs, and electrical infrastructure upgrades including a trolley motor backup power supply. Bids are due by May 20, 2026, with a mandatory pre-bid walk-through scheduled for April 17, 2026. The estimated construction cost ranges from $1,080,000 to $1,390,000.

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