3-60 (Construction), Knott-Miller Holder Artesia Branch Rehabilitation

This opportunity is an Invitation for Bids (IFB) issued by the Orange County Sanitation District (OC SAN) for the “Knott‑Miller Holder Artesia Branch Rehabilitation” project (Project No. 3‑60). The work involves extensive rehabilitation of approximately 3,900 ft of sanitary sewer lines ranging from 18 in to 45 in in diameter, the construction of new 84‑in polymer‑concrete manholes, slip‑lining of a 45‑in inverted siphon with 24‑in HDPE pipe, rehabilitation of 37 existing manholes, installation of a new air‑jumper pipe, and associated temporary sewage handling, traffic control, and site restoration. The contract will require the contractor to provide all labor, equipment, materials, permits, and safety plans, and to coordinate closely with OC SAN to avoid service interruptions. Key deliverables include cured‑in‑place pipe (CIPP) lining, polymer‑concrete manhole construction, HDPE slip‑lining, de‑watering, storm‑water pollution control, and comprehensive testing and documentation. • Scope: sewer line rehabilitation, manhole construction/rehab, slip‑lining, HDPE pipe installation, air‑jumper installation, temporary flow bypass, traffic control, and site restoration. • Location: Multiple sites within the cities of Buena Park and La Palma, Orange County, California. • Required capabilities: experience with CIPP, HDPE slip‑lining, polymer‑concrete manhole fabrication, traffic management, environmental compliance (storm‑water permits), and coordination with multiple municipal agencies. • Contractual obligations: performance and payment bonds, safety program compliance, detailed mobilization and construction schedules, and submission of extensive submittals (design calculations, QA/QC plans, etc.).