ILLINOIS ROUTE 157
CONSTRUCTION COST: $8,000,000
COMPLETION DATE: 2007
CLIENT: ILLINOIS DEPARTMENT OF TRANSPORTATION

Phase I and II services were provided for this project involving construction of a new 5-lane overpass taking IL-157 over the Union Pacific Railroad, 4,000 ft. of new alignment to meet the new structure, and resurfacing from IL Route 3 to I-255 in Cahokia.

Phase I involved the study of 5 alternates to accomplish the grade separation, several presentations in the public involvement phase, TS&L plans, traffic studies, intersection design studies, cost estimates and preliminary plans.

Phase II required design of a three span steel beam structure carrying 5 traffic lanes and a sidewalk, relocating IL-157 approximately 300 ft. north of the existing alignment, and realignment / reconstruction of intersecting streets to meet the new alignment.