HBM CDOT 41st Pedestrian Bridge converted

Project Location

41st Street Pedestrian Bridge over Metra Electric/CN and South Lake Shore Drive

Services Provided

Phase II Design Services

Project Owner

Chicago Department of Transportation

Project Contact (Prime)

Moussa A. Issa, PhD, PE, SEProject Manager (708) 236-0900

Prime Consultants

AECOM USA, Inc.Dipal Vimawala, PE, SE

Project Duration

1 year

Key Team Members

Mahmoud A. Issa, Project Engineer John Saraceno, Structural Engineer Lisa Buntin, Structural Engineer Joseph Glennon, Bridge Engineer

Description of ProjectStructural Design of Approach Structures and Stairs

HBM Engineering Group, LLC performed the following work for the CDOT as a subconsultant for AECOM. The pedestrian bridge links Bronzeville to the Lakefront crossing over Lake Shore Drive and Railroad tracks.

The bridge will join the new William Davis Park west of the drive in Oakland with the Lakefront Trail east of the drive in Burnham Park. It will also provide access to the new Oakwood Beach.

The approach structures include the outer portions of the structure which cross over the recreational parks on each side of Lake Shore Drive and railroad. The main structure will be supported by a single-deck rib below the center of the deck. These pipes will be designed to run continuously from both approaches.

HBM work included assistance with the TS&L and the preparation of the Final plans, specifications, and PSE Estimate for the structure. Finite element analysis was used to model the approach structure using a finite element analysis software. The analysis included the superstructure and foundations.