SR 400 RAMP
SR 400 RAMP in Sandy Springs, Fulton County, Georgia received a condition grade of B (78/100). Built in 2020, the bridge carries 212K vehicles daily on SR 400 RAMP over Sr400 I-285.
SR 400 RAMP carries a B on the BridgeSafety Condition Score with 78/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 2020 and is 6 years old — relatively young against the U.S. bridge stock. Modern bridges built to current FHWA standards generally outperform older structures on condition ratings. SR 400 RAMP carries an average daily traffic count of 212,000 vehicles, with 1 lane(s) crossing Sr400 I-285. 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
SR 400 RAMP is a 6-year-old bridge located Sandy Springs in Fulton County, Georgia. The bridge carries SR 400 RAMP over Sr400 I-285 with 1 traffic lane, handling approximately 212K vehicles per day. Built in 2020, the structure spans 765 meters.
The bridge received a Condition Grade of B (78/100) 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
SR 400 RAMP has a Condition Score of 78/100 (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.
SR 400 RAMP was built in 2020, making it 6 years old. The average bridge age in the United States is 48 years.
SR 400 RAMP carries approximately 212K vehicles per day (average daily traffic). The bridge has 1 traffic lane. It is 765 meters long and located on SR 400 RAMP in Sandy Springs, Fulton County, Georgia.
No, SR 400 RAMP is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
SR 400 RAMP is located Sandy Springs in Fulton County, Georgia. The bridge carries SR 400 RAMP over Sr400 I-285. Its coordinates are 33.912583, -84.356414. It is maintained by State Highway Agency.
SR 400 RAMP carries SR 400 RAMP over Sr400 I-285. The bridge is 765 meters long and was built in 2020.
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.