Removal & Replace 72" Entrance Pipe Along US 52 in Winneshiek Co.

The Iowa DOT seeks a qualified contractor to remove an existing 72‑inch concrete‑masonry entrance pipe on US 52 (Station 1736+65, MP 164.20) in Winneshiek County and install a new 72‑inch pipe plus two protective aprons. The scope includes all labor, materials, equipment, traffic control, excavation, back‑fill, grading, erosion control, and reseeding, performed under DOT supervision and in compliance with standard specifications (2417, 2402, EW‑501, EC‑104/204). The project must be completed no later than 30 June 2026. • Removal and disposal of existing 72‑in pipe, excavation, and site preparation. • Supply and installation of new 72‑in pipe and two aprons per I‑DOT approved specifications. • Complete traffic‑control plan, erosion‑control measures, and post‑construction seeding to achieve ≥70 % vegetation establishment. • Required performance and payment bond (if contract ≥ $25,000) and compliance with labor registration, insurance, and bonding requirements.