IL 171 Northbound Archer Rd Intersection Toward 47TH St & I-55 Bridge Replacement

Illinois Department of Transportation

  • The scope consists of bridge replacement of the NB IL 171 over I-55 structure and the reconstruction of 1.6 miles of Route 171 from north of the IL 171/Archer Road intersection and extended in a north direction towards 47th Street located with the Villages of McCook, Lyons and Summit in Cook County.
  • The project consists of pavement patching and resurfacing with polymerized hot-mix asphalt.
  • The project includes rehabilitation and/or widening for eight (8) bridges and repairs to two (2) retaining walls.
  • The bridges and retaining walls included structural steel repair, jack and remove existing bearings, partial and full depth deck repairs, modular joints, finger plate expansion joints, temporary soil retention systems, drilled shafts in soil & Rock.
  • The project includes the removal and replacement of signs and roadway lighting and thirty nine high mast lighting towers through the 171/I-55 interchange.
  • The project includes ramp modifications, add auxiliary lane, temporary pavement crossover removal, ditch restoration, placement of pavement markings and all incidental and collateral work.
  • The project requires the coordination of signal timing at twenty one intersections and temporary traffic signals set up at two intersections.