OPW 55168: Northeast Omaha High-Rate Treatment Basin (NEOHRTB) - Package 2 11th and Izard Active Control and Grit and Screening Facility

The City of Omaha Public Works Department is soliciting bids for the construction of the second package of the Northeast Omaha High‑Rate Treatment Basin (NEOHRTB). The scope includes the 11th and Izard Active Control (IZAC) flow‑diversion structure, twin 60‑inch diversion sewers, the 11th and Izard Grit and Screening Facility (IZGSF), associated combined‑sewer conveyance structures, site work, appurtenances, and supporting improvements such as shoring, ground‑improvement, and utility installations. The contract will be awarded on a lump‑sum and unit‑price basis with allowances, and the successful contractor must provide an Economic Sustainability Plan, comply with Small & Emerging Small Business participation requirements, and may elect to utilize apprenticeship incentives. Bids must be submitted electronically by 11:00 a.m. CT on 23 September 2026; a pre‑bid meeting (non‑mandatory) is scheduled for 26 August 2026. • Construction of IZAC flow‑diversion structure and twin 60‑in. diversion sewers • Build the IZGSF grit‑screening facility and related appurtenances • Extensive earthwork, shoring, ground‑improvement, and de‑watering • Installation of utilities, concrete, steel, mechanical, electrical, and control systems • Compliance with SEB participation (3.5 %) and optional apprenticeship provisions • Required bid bond or acceptable substitute; bid documents available via Douglas County Purchasing website.