I-75 MANAGED LANES
I-75 MANAGED LANES in In East Marietta, Cobb County, Georgia received a condition grade of A (85/100). Built in 2018, the bridge carries 225K vehicles daily on I-75 MANAGED LANES over Elizabeth Branch.
I-75 MANAGED LANES carries an A on the BridgeSafety Condition Score with 85/100. Deck, superstructure, and substructure ratings all sit in the better tier of the FHWA NBI distribution. The bridge is structurally sound by federal standards.
The bridge was built in 2018 and is 8 years old — relatively young against the U.S. bridge stock. Modern bridges built to current FHWA standards generally outperform older structures on condition ratings. I-75 MANAGED LANES carries an average daily traffic count of 225,340 vehicles, with 2 lane(s) crossing Elizabeth Branch. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
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-75 MANAGED LANES is a 8-year-old bridge located In East Marietta in Cobb County, Georgia. The bridge carries I-75 MANAGED LANES over Elizabeth Branch with 2 traffic lanes, handling approximately 225K vehicles per day. Built in 2018, the structure spans 15.8 meters.
The bridge received a Condition Grade of A (85/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 8/9 (good), and substructure 8/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-75 MANAGED LANES has a Condition Score of 85/100 (Grade A). Its deck is rated 7/9, superstructure 8/9, and substructure 8/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-75 MANAGED LANES was built in 2018, making it 8 years old. The average bridge age in the United States is 48 years.
I-75 MANAGED LANES carries approximately 225K vehicles per day (average daily traffic). The bridge has 2 traffic lanes. It is 15.8 meters long and located on I-75 MANAGED LANES in In East Marietta, Cobb County, Georgia.
No, I-75 MANAGED LANES 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-75 MANAGED LANES is located In East Marietta in Cobb County, Georgia. The bridge carries I-75 MANAGED LANES over Elizabeth Branch. Its coordinates are 33.973567, -84.531853. It is maintained by State Highway Agency.
I-75 MANAGED LANES carries I-75 MANAGED LANES over Elizabeth Branch. The bridge is 15.8 meters long and was built in 2018.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.