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Stormwater Management Program

US-123 wetlands in Luce County.

Stormwater Management Program

In 2004, the Michigan Department of Environmental Quality (MDEQ) issued a NPDES MS4 permit to MDOT for MDOT-operated stormwater drainage systems. In November 2021, that permit was re-issued by the Michigan Department of Environment, Great Lakes, and Energy (EGLE). To meet the requirements of this permit, MDOT updated its Stormwater Management Program (SMP) document.

The SMP document explains how MDOT plans, builds, and maintains transportation projects in ways that help reduce stormwater pollution. It includes both simple steps, like good housekeeping practices, and larger efforts, such as constructing new stormwater management facilities. It also outlines MDOT’s commitment to continue improving how stormwater is managed across the state.

  1. EGLE NPDES Permit No. MI0057634
  2. Stormwater Program Activity Tables
  3. MDOT Best Management Practices
  4. Sample PIPP and Weekly Facility Environmental Inspection for MDOT Maintenance Facility
  5. Statewide Watershed and Local Stream Organizations
  6. Public Comments and MDOT Responses on SMP
  7. Illicit Discharge Elimination Program (IDEP) Protocol Manual