I- 90 94 RYAN ELEV
I- 90 94 RYAN ELEV in 0.4 M S I-55, Cook County, Illinois received a condition grade of C (41/100). Built in 1962, the bridge carries 246K vehicles daily on I- 90 94 RYAN ELEV over Canal To Stewart Sts. It is classified as structurally deficient.
Component Ratings
The riding surface — evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
I- 90 94 RYAN ELEV is a 64-year-old bridge located 0.4 M S I-55 in Cook County, Illinois. The bridge carries I- 90 94 RYAN ELEV over Canal To Stewart Sts with 10 traffic lanes, handling approximately 246K vehicles per day. Built in 1962 and reconstructed in 1989, the structure spans 175.2 meters.
The bridge received a Condition Grade of C (41/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 4/9 (poor), and substructure 4/9 (poor). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below — this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I- 90 94 RYAN ELEV has a Condition Score of 41/100 (Grade C). Its deck is rated 5/9, superstructure 4/9, and substructure 4/9 on the NBI scale. The bridge is classified as structurally deficient.
I- 90 94 RYAN ELEV was built in 1962 and reconstructed in 1989, making it 64 years old. The average bridge age in the United States is 48 years.
I- 90 94 RYAN ELEV carries approximately 246K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 175.2 meters long and located on I- 90 94 RYAN ELEV in 0.4 M S I-55, Cook County, Illinois.
Yes, I- 90 94 RYAN ELEV is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.
I- 90 94 RYAN ELEV is located 0.4 M S I-55 in Cook County, Illinois. The bridge carries I- 90 94 RYAN ELEV over Canal To Stewart Sts. Its coordinates are 41.846167, -87.638292. It is maintained by State Highway Agency.
I- 90 94 RYAN ELEV carries I- 90 94 RYAN ELEV over Canal To Stewart Sts. The bridge is 175.2 meters long and was built in 1962, with reconstruction in 1989.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.