WRA Joint Trunk – Phase 14, Segment 3

This solicitation awards a construction contract for the WRA Joint Trunk Phase 14 Segment 3, a major sanitary‑sewer upgrade along Walnut Creek in the Des Moines metro area. The work includes open‑cut and trenchless installation of over 16,000 ft of 60‑ and 66‑inch pipe, associated manholes, bypass pumping, de‑watering, storm‑sewer and water‑main replacement, roadway resurfacing, traffic control, erosion control, seeding, and installation of flow‑metering equipment with new electrical service. The contract is subject to Davis‑Bacon prevailing‑wage rules, DBE participation requirements, American Iron & Steel procurement restrictions, and a prohibition on certain telecommunications equipment. The contractor must provide a 10 % bid bond and meet a final completion deadline of October 1, 2029. • Install ~12,903 ft of 60‑in. and 3,749 ft of 66‑in. sanitary sewer (open‑cut) plus trenchless sections. • Replace storm‑sewer and water‑main assets, perform HMA/PCC pavement replacement, and provide temporary traffic control and erosion‑control measures. • Deliver flow‑meter cabinets, laser‑flow sensors, and associated power/communications infrastructure.