I-69 EB
I-69 EB in 0.3 MI NE Of M-71, Shiawassee County, Michigan received a condition grade of C (59/100). Built in 1961, the bridge carries 192K vehicles daily on I-69 EB over Holly Drain.
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-69 EB is a 65-year-old bridge located 0.3 MI NE Of M-71 in Shiawassee County, Michigan. The bridge carries I-69 EB over Holly Drain with 2 traffic lanes, handling approximately 192K vehicles per day. Built in 1961, the structure spans 18.3 meters.
The bridge received a Condition Grade of C (59/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-69 EB has a Condition Score of 59/100 (Grade C). Its deck is rated 6/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-69 EB was built in 1961, making it 65 years old. The average bridge age in the United States is 48 years.
I-69 EB carries approximately 192K vehicles per day (average daily traffic). The bridge has 2 traffic lanes. It is 18.3 meters long and located on I-69 EB in 0.3 MI NE Of M-71, Shiawassee County, Michigan.
No, I-69 EB 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-69 EB is located 0.3 MI NE Of M-71 in Shiawassee County, Michigan. The bridge carries I-69 EB over Holly Drain. Its coordinates are 42.928894, -83.994878. It is maintained by State Highway Agency.
I-69 EB carries I-69 EB over Holly Drain. The bridge is 18.3 meters long and was built in 1961.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.