Join the YEC for a FREE site visit and tour of the Montrose Avenue Bridge Replacement project. The tour will be led by representatives from Granite, Gonzalez, Ciorba, and IDOT. Up to 20 people may register for this event.
About the Project:
Nestled in the heart of the Kennedy Corridor, the Montrose Bridge replacement over I-90/94 and CTA Blue Line tracks was a challenge to design, to coordinate between outside agencies, and to construct in such a narrow corridor.
The original post-tensioned bulb-tee beams did not meet current vertical clearance standards and were determined to be structurally inadequate after numerous vehicular impacts, exposing tendons within the beams. The superstructure was determined to require replacement. Ciorba Group provided design services for the superstructure replacement of Montrose Avenue bridge. The proposed superstructure replacement was a continuous metallized steel plate girder constructed on existing abutments and existing piers with new pier caps and a traditional cast in place deck with spans measuring 156’-2” – 153’-11” – 156’-2, respectively. The 50° skew bridge spans over 2 continuously operational CTA tracks, 12 lanes of I-90/94 traffic, and 2 reversible express lanes with an average daily traffic of over 140,000 vehicles in each direction. The Montrose Avenue CTA Blue line station has entrances on either side of the structure that had to be tied into when creating a new vertical profile for the structure.
The main challenge of the project was to provide a feasible method of construction for a bridge superstructure replacement given the many constraints and restrictions of the project. Ciorba successfully provided a design and suggested erection sequence that would allow the Contractor the flexibility to demolish and construct the bridge within the limits of the construction site. The Montrose Bridge superstructure replacement proved to be both a very challenging and rewarding project to complete and provided valuable lessons in coordination, design, and construction to be carried over to future projects. Come see for yourself at the YEC site visit!
As shown on the map below, we will meet on the northwest corner of Montrose Ave and Kilbourne Ave.
To prevent the spread of COVID-19, anyone who fits into any of these categories is not permitted to attend the site visit:
-You have been exposed to COVID-19, or have been diagnosed with COVID-19 and are not yet cleared as non-contagious by state or local public health authorities.
-Within the past 14 days, you or members of your household have experienced any symptoms associated with COVID-19.
Social distancing will be practiced and masks will be required for the full duration of the site visit. Attendees must plan to bring the following PPE to the site visit:
- Hard hat
- Safety Glasses
- Field Gloves
- High Visibility Vest
- Closed Toes Shoes (boots preferred)
- Mask or cloth face covering
Attendance is limited so RSVP today! Use the link to the right and continue through the entire process until you see the “Checkout Complete” screen. A waitlist will be created when we hit capacity. Please let us know if, for any reason, you are no longer able to attend.