I·55 (Stevenson Expressway) and Adjacent Frontage Roads from Lemont Road to IL 83 (Kingery Highway)

AEG provided Phase II engineering services consisting of final plans, specifications, estimates for the development of Drainage and Utility Plans, Erosion Control Plans for the proposed I-55 Stevenson Expressway and Adjacent Frontage Roads improvements at five locations along the I-55 frontage roads (between Lemont Road and IL 83 (Kingery Highway). The project involved supplemental hydraulic design and HEC-RAS modeling to provide hydraulic calculations for drainage improvements.

Clients:                   Millennia Professional Services (MPS)/Illinois Department of Transportation (IDOT)

Services:                 Phase II Engineering (Drainage & Utility Plans, Erosion Control Plans)