Rattlesnake Dam Outlet Pipe Rehabilitation

The Rattlesnake Dam Outlet Pipe Rehabilitation project, managed by the Irvine Ranch Water District, involves the comprehensive rehabilitation of critical water infrastructure at the Rattlesnake Canyon Dam in Irvine, California. The scope of work requires the contractor to furnish all necessary labor, materials, and equipment to rehabilitate approximately 425 linear feet of 24-inch cement mortar-lined and coated steel pipe and approximately 690 linear feet of 30-inch bar-wrapped steel pipe using trenchless technology. Key technical deliverables include the installation of Spray-In-Place (SIPP) liners and the performance of both pre- and post-project CCTV inspections. Additionally, the project encompasses significant improvements to the dam outlet structure, including the demolition of the highest outlet intake structure, replacement of three District-furnished butterfly valves and actuators, modification of valve stem supports, construction of air vent piping, and replacement of the stainless steel channel. The contract is a sealed bid solicitation to be awarded to the lowest responsive and responsible bidder, with a submission deadline of 2:00 PM on September 17, 2026, via the PlanetBids portal. The successful contractor must possess a current Class A contractor's license issued by the State of California and provide proof of registration for public work and compliance with off-road diesel-fueled fleet regulations. Upon award, the contractor must furnish performance and payment bonds totaling 100% of the contract price. The period of performance requires substantial completion within 225 calendar days from the Notice of Award, which includes a 10-day allowance for weather. All work must adhere to prevailing wage requirements and strict quality assurance standards, including specific labeling, marking, and identification protocols for potable and recycled water systems.