Cook County, Region One, District One
(Formerly known as Circle Interchange)
HBM provided Phase I and Phase II engineering support services for this complex and time sensitive project as a subconsultant to AECOM. Phase I services included existing document review and field inspection of five (5) bridges and eleven (11) retaining walls and the development of Bridge Condition Reports (BCR) and Wall Condition Reports (WCR) for the bridges and wall structures that were inspected. Recently completed Phase II services include construction documents for the Taylor Street Bridge over I-90/94 (SN 016-1165) and Retaining Walls 5 and 6 along the Morgan Street Exit Ramp (SNs 016-1724 and 016-1725, respectively). Morgan St. Bridge over I-290/CTA (SN 016-1709), also included in the HBM scope of work, was replaced and opened to traffic in October of 2014. Phase II services for the remaining bridges and walls are ongoing.
Work includes development of the Type Size and Location Studies (TS&L) and the preparation of the Final Plans, Specifications and Estimate (PSE) for 5 bridges, 2 proposed retaining walls and other associated retaining walls. The Morgan Street and Taylor Street bridges are multi-span steel beam on tangent alignments with deep foundations utilizing staged construction. Two multi-span steel curved girder bridges are also included, namely, the 2-span Taylor Street Bypass Ramp carrying SB I-90/94 traffic to Taylor Street (SN 016-1718, R = 328′) and the 4-span EN Ramp carrying EB I-290 traffic to NB I-90/94 (SN 016-1712, R = 340′).
The bridge and wall structures are located within the confined right-of-way of the Circle Interchange corridor and interact with facilities of multiple other agencies such as Chicago Transit Authority (CTA), Chicago Department of Water Management (CDWM), Chicago Department of Transportation (CDOT), University of Illinois-Chicago (UIC) and local property owners.