Renovation of a museum in Mackinaw City, Michigan. Completed plans call for the renovation of a museum.

Removing and installing new vapor barrier around the Powder Magazine enclosure. Installing doors, split system air conditioning units, and dehumidifiers in the South-Southeast Rowhouse. In the Southeast Rowhouse installing dehumidifiers. All bid responses require proof of State Project Registration from the Department of Labor and Economic Opportunity. Bid responses and bid attachments must be uploaded to SIGMA VSS. Contractors should only submit a maximum of two attachments (both being less than 25 MB) for bid responses. One attachment is to be bid documents (Bid Summary, Bid Schedule, Bid Bond, Certification forms, Signature Authority, etc.) and if applicable, the other attachment should be Qualified Disabled Veteran (QDV) information (DD214, Proof of 51% Ownership and Proof of Service-Connected Disability). Do not wait until just before the solicitation deadline to submit your bid response. SIGMA VSS will not allow a proposal to be submitted after the deadline, even if a portion of the bid response has been uploaded. If you experience issues or have questions regarding your electronic submission, you must contact the SIGMA Help Desk for assistance prior to the solicitation deadline. You may be asked by contract specialists to email your bid response; emailed submissions will require approval and will be handled on a case-by-case basis. Approved emailed submissions must be received prior to the deadline to be considered responsive and responsible. Bid Responses should not be emailed to the Project Director. 5% bid security required. Questions should be emailed to the contact provided, no later than the specified time. Question Deadline 03/11/2026 at 12:00 PM ET