I-285
I-285 in 1.9 MI N Of Chamblee, DeKalb County, Georgia received a condition grade of B (63/100). Built in 1961, the bridge carries 200K vehicles daily on I-285 over M-9261 Shallowford Road.
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-285 is a 65-year-old bridge located 1.9 MI N Of Chamblee in DeKalb County, Georgia. The bridge carries I-285 over M-9261 Shallowford Road with 10 traffic lanes, handling approximately 200K vehicles per day. Built in 1961 and reconstructed in 1995, the structure spans 35.7 meters.
The bridge received a Condition Grade of B (63/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 6/9 (fair), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-285 has a Condition Score of 63/100 (Grade B). Its deck is rated 6/9, superstructure 6/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-285 was built in 1961 and reconstructed in 1995, making it 65 years old. The average bridge age in the United States is 48 years.
I-285 carries approximately 200K vehicles per day (average daily traffic). The bridge has 10 traffic lanes. It is 35.7 meters long and located on I-285 in 1.9 MI N Of Chamblee, DeKalb County, Georgia.
No, I-285 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-285 is located 1.9 MI N Of Chamblee in DeKalb County, Georgia. The bridge carries I-285 over M-9261 Shallowford Road. Its coordinates are 33.920308, -84.305183. It is maintained by State Highway Agency.
I-285 carries I-285 over M-9261 Shallowford Road. The bridge is 35.7 meters long and was built in 1961, with reconstruction in 1995.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.