I-85 SBL
I-85 SBL in 3.5 MI SE Of Duluth, Gwinnett County, Georgia received a condition grade of B (69/100). Built in 1958, the bridge carries 255K vehicles daily on I-85 SBL over Sweetwater Creek.
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-85 SBL is a 68-year-old bridge located 3.5 MI SE Of Duluth in Gwinnett County, Georgia. The bridge carries I-85 SBL over Sweetwater Creek with 6 traffic lanes, handling approximately 255K vehicles per day. Built in 1958 and reconstructed in 2008, the structure spans 46.3 meters.
The bridge received a Condition Grade of B (69/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), 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-85 SBL has a Condition Score of 69/100 (Grade B). Its deck is rated 7/9, superstructure 7/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-85 SBL was built in 1958 and reconstructed in 2008, making it 68 years old. The average bridge age in the United States is 48 years.
I-85 SBL carries approximately 255K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 46.3 meters long and located on I-85 SBL in 3.5 MI SE Of Duluth, Gwinnett County, Georgia.
No, I-85 SBL 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-85 SBL is located 3.5 MI SE Of Duluth in Gwinnett County, Georgia. The bridge carries I-85 SBL over Sweetwater Creek. Its coordinates are 33.963392, -84.105194. It is maintained by State Highway Agency.
I-85 SBL carries I-85 SBL over Sweetwater Creek. The bridge is 46.3 meters long and was built in 1958, with reconstruction in 2008.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.