Description
The City of Columbus is seeking qualified contractors to construct a new raw‑water transmission line (approximately 2,600 ft of 36‑in. and 42‑in. prestressed concrete cylinder pipe) from the Parsons Avenue Water Plant to an existing 42‑in. line, including trenchless crossing of Big Walnut Creek, installation of a 60‑in. reinforced concrete pipe casing, directional drilling, valve and conduit work, and all associated site preparation, de‑watering, and environmental compliance. The project must be completed within 540 calendar days after the Notice to Proceed, with substantial completion required by day 420. Bids must be submitted electronically through BidExpress, and all bidders must acknowledge each addendum. The contract is estimated to exceed $2 million and requires compliance with prevailing‑wage, safety, insurance, and subcontractor benefit requirements.
• Install ~2,592 ft of 36‑in. and 42‑in. prestressed concrete pipe, including a trenchless 60‑in. RCP casing and directional drilling segment.
• Provide valves, 4–5 in. electrical conduit, pull‑boxes, and all ancillary work (excavation, backfill, erosion control, tree protection).
• Meet stringent environmental, safety, and prevailing‑wage specifications; submit required forms (B1‑B9) and maintain a 10 % performance bond plus a 100 % payment bond.