OPW 55167: Northeast Omaha High-Rate Treatment Basin (NEOHRTB) Package 1 - North Downtown Conveyance Sewer (NDCS)

The City of Omaha is soliciting bids for the design‑build construction of a 1,970‑ft, 72‑inch diameter combined sewer gravity conveyance tunnel (micro‑tunneling and hand‑mining) with associated launch and receiving shafts in the Northeast Omaha High‑Rate Treatment Basin (NEOHRTB) – Package 1 (North Downtown Conveyance Sewer). The contractor must provide all labor, equipment, materials, and sub‑services, submit an Economic Sustainability Plan, and may utilize apprentice incentives. The project includes extensive earthwork, concrete pipe fabrication, utility installation, and strict quality‑control and testing requirements. Bids are due electronically by September 2, 2026; a non‑mandatory pre‑bid meeting and site visit are scheduled for August 12, 2026. The anticipated notice‑to‑proceed is October 14, 2026. • Scope: 1,970‑ft, 72‑in. micro‑tunnel and hand‑mined sewer line, launch/receiving shafts. • Required deliverables: Economic Sustainability Plan, bid bond (or acceptable substitute), apprenticeship incentive form, detailed submittals for reinforced concrete jacking pipe (RCP‑J). • Mandatory certifications: Bid bond issuer licensed in Nebraska, PE‑stamped design calculations, compliance with Small & Emerging Small Business (SESB) program. • Key dates: Issue 7/29/2026, Pre‑bid 8/12/2026, Questions cut‑off 8/23/2026, Bid deadline 9/2/2026, NTP 10/14/2026. • Site conditions: Bedrock tunneling, geotechnical baseline report required, site visit and optional additional investigations. • Contract type: Lump‑sum with allowances, performance and payment bonds required.