Description
The City of Columbus is soliciting bids to construct the Central College Subtrunk Phase 3, a large‑scale sanitary‑sewer project that will install a 48‑inch micro‑tunneled reinforced‑concrete pipe, additional smaller‑diameter sewers, manholes, and associated civil works along Central College Road and Harlem Road.
• Approximately 10,926 ft of 48‑in. inside‑diameter sanitary‑sewer pipe installed by curved/straight slurry micro‑tunneling through mixed soil and rock conditions.
• Additional installations include 63 ft of 18‑in., 82 ft of 8‑in., 70 ft of 12‑in. pipe, twelve manholes, four jacking pits, five receiving pits, and eight micro‑tunnel drives.
• Scope also covers bypass pumping, abandonment of an existing 24‑in. subtrunk, dewatering, geotechnical instrumentation, contact grouting, site restoration, traffic‑maintenance, and compliance with EPA, Davis‑Bacon, DBE, and local pre‑qualification requirements.
• Bids must be submitted electronically via Bid Express by 3:00 PM ET on 18 Nov 2026; a pre‑bid conference is scheduled for 2 Nov 2026 (recommended attendance).
• No contract value is disclosed; contractors must meet Columbus pre‑qualification criteria and federal/state labor and environmental regulations.