The State of Michigan is soliciting qualified contractors to renovate the day‑use restroom facilities at the Michigan State Historic Preservation (MSHP) site in Mackinaw City. The work includes complete interior and exterior upgrades: roofing, electrical, plumbing, heating, brick cleaning, new flooring, wall tile, and the construction of an ADA‑compliant bathroom. The project is a minor construction effort but requires coordination of multiple trades, compliance with state bonding and insurance requirements, and adherence to prevailing‑wage rules. Bids are to be submitted electronically via the SIGMA VSS system, and a five‑percent bid guarantee, performance bond, and payment bond are mandatory for contracts over $50,000. The contract is expected to be awarded after the bid opening on October 14 2026, with work to be completed by April 1 2027.
• Location: 526 N. Huron Ave., Mackinaw City, MI 49701
• Scope: Full restroom renovation (roof, MEP, finishes, ADA compliance)
• Estimated mobilization allowance: $75,000
• Mandatory bonds: 5 % bid guarantee, performance bond, payment bond (for >$50k)
• Submission: Electronic via SIGMA VSS; include certifications for Qualified Disabled Veteran and Michigan‑Based Business if applicable
• Key dates: Posting 9/18/2026, Bid opening 10/14/2026, Contract completion 4/1/2027
• Contact: Kristi Zakrzewski (Buyer) – (517) 243‑5669,
[email protected]