Minneapolis Sandstone Tunnel Inspection (Contracting - with Small Business Goal)

The Metropolitan Council is seeking qualified contractors to perform inspection, cleaning, and limited repair work on the Minneapolis sandstone tunnel system. The scope includes personnel‑entry and remote inspections of maintenance holes, inspection of a 21,300‑ft sandstone tunnel interceptor, remote inspection of approximately 47,000 ft of tunnel, and drilling of 17 boreholes for additional access. The work will involve confined‑space entry, debris removal, visual assessments, and minor stabilization as required, with a small‑business participation goal of 3 % for minority‑ and women‑owned firms. • Personnel‑entry inspection of 58 maintenance holes (10‑95 ft deep) and remote inspection of 16 holes. • Inspection of ~21,300 ft of sandstone tunnel interceptor and ~47,000 ft of remote tunnel. • Installation of 17 boreholes (45‑70 ft deep) for additional access and potential repair. • Mandatory electronic bid submission via QuestCDN; $6 non‑refundable plan purchase; NDA required for all plan data. • Pre‑bid virtual meeting on 25 June 2026; bid opening on 16 July 2026.