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Package 1

Drainage tunnel project

Schedule
2027-2029

Location
Detroit: Below the westbound I-94 service drive between Cadillac and Barrett avenues.

Benefits

  • Reduces freeway and service drive storm water discharged to the combined sanitary and storm water systems by 82 percent.
  • During heavy rain events, the storm water flows from the freeway and service drives basins directly into drop shafts and then into the tunnel.
  • Large capacity tunnels will store up to 8 million of gallons of water allowing municipal systems to drain first into treatment facilities before storm water from the tunnel is discharged.
  • Prevents local systems from being overburdened and flooding neighborhoods.

Learn more about drainage tunnels and the I-94 drainage tunnel.

Road, bridges, interchanges and service drives project

Schedule
2028-2031

Location
Detroit: Burns Avenue to Barrett Avenue

Benefits

  • Improve safety and traffic operations by the addition of the auxiliary lanes between the Connor and Gratiot interchanges.
  • Rebuilding service drives and converting to two-way traffic.
  • Operational safety improvements by extending entrance and exit ramps.
  • Modernizing interchanges at Conner Avenue and Gratiot Avenue.
  • Replacing eight overpasses above I-94 at Rohns Street, Lemay Street, the Conrail Railroad crossing, the Iron Belle Trail, Conner Avenue (two bridges), Malcolm Street and Barrett Avenue.