I- 55 STEVENSON
I- 55 STEVENSON in 0.9 M E Of US 45, Cook County, Illinois received a condition grade of B (74/100). Built in 2000, the bridge carries 142K vehicles daily on I- 55 STEVENSON over Des Plaines River.
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- 55 STEVENSON is a 26-year-old bridge located 0.9 M E Of US 45 in Cook County, Illinois. The bridge carries I- 55 STEVENSON over Des Plaines River with 6 traffic lanes, handling approximately 142K vehicles per day. Built in 2000 and reconstructed in 2002, the structure spans 214.2 meters.
The bridge received a Condition Grade of B (74/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 7/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I- 55 STEVENSON has a Condition Score of 74/100 (Grade B). Its deck is rated 6/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I- 55 STEVENSON was built in 2000 and reconstructed in 2002, making it 26 years old. The average bridge age in the United States is 48 years.
I- 55 STEVENSON carries approximately 142K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 214.2 meters long and located on I- 55 STEVENSON in 0.9 M E Of US 45, Cook County, Illinois.
No, I- 55 STEVENSON is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I- 55 STEVENSON is located 0.9 M E Of US 45 in Cook County, Illinois. The bridge carries I- 55 STEVENSON over Des Plaines River. Its coordinates are 41.763578, -87.853689. It is maintained by State Highway Agency.
I- 55 STEVENSON carries I- 55 STEVENSON over Des Plaines River. The bridge is 214.2 meters long and was built in 2000, with reconstruction in 2002.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.