Michigan Construction Bids

How Michigan procurement works

Michigan's procurement landscape splits between state-level work through SIGMA (the State Integrated Governmental Management Application) and local procurement that runs through individual county, city, and district offices. County road commissions are a major source of infrastructure work in Michigan, handling roads, bridges, and drainage outside city limits. Each of the 83 counties operates its road commission independently, and the work posts to their individual websites.

MDOT lettings and transportation work

The Michigan Department of Transportation posts letting schedules for state trunk line highways, bridges, and freeway projects. MDOT is one of the larger state DOTs in the Midwest, managing over 9,600 miles of highway. Letting documents are available through MDOT's construction contracting division. The scope ranges from routine preservation to major capacity projects, and subcontractors need to dig into plan sets to identify where their trade fits.

Southeast Michigan and metro Detroit

Wayne, Oakland, and Macomb counties represent the largest concentration of public construction in Michigan. The City of Detroit, DDOT, SMART, the Great Lakes Water Authority, and dozens of suburban communities each run their own procurement. Infrastructure needs in southeast Michigan are significant and ongoing. Water and sewer work alone generates a steady pipeline of bid opportunities from regional authorities and local utilities.

Michigan school districts

Michigan's 500+ school districts handle facilities procurement independently. Bond-funded construction, sinking fund maintenance projects, and state-assisted renovations all go through district purchasing offices. A roof replacement in Grand Rapids, an HVAC upgrade in Kalamazoo, a gym addition in Traverse City. These projects post on district websites with limited advertising, and contractors who track them face less competition.

Nearby states