US 19 SR 400
US 19 SR 400 in 1.8 MI E Of Roswell, Fulton County, Georgia received a condition grade of B (67/100). Built in 1970, the bridge carries 166K vehicles daily on US 19 SR 400 over M9408 Rivside DR- Chatt.
US 19 SR 400 carries a B on the BridgeSafety Condition Score with 67/100. 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 1970 and is now 56 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. US 19 SR 400 carries an average daily traffic count of 166,000 vehicles, with 8 lane(s) crossing M9408 Rivside DR- Chatt. 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
US 19 SR 400 is a 56-year-old bridge located 1.8 MI E Of Roswell in Fulton County, Georgia. The bridge carries US 19 SR 400 over M9408 Rivside DR- Chatt with 8 traffic lanes, handling approximately 166K vehicles per day. Built in 1970 and reconstructed in 1987, the structure spans 207 meters.
The bridge received a Condition Grade of B (67/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 7/9 (good), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
US 19 SR 400 has a Condition Score of 67/100 (Grade B). Its deck is rated 6/9, superstructure 7/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
US 19 SR 400 was built in 1970 and reconstructed in 1987, making it 56 years old. The average bridge age in the United States is 48 years.
US 19 SR 400 carries approximately 166K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 207 meters long and located on US 19 SR 400 in 1.8 MI E Of Roswell, Fulton County, Georgia.
No, US 19 SR 400 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
US 19 SR 400 is located 1.8 MI E Of Roswell in Fulton County, Georgia. The bridge carries US 19 SR 400 over M9408 Rivside DR- Chatt. Its coordinates are 34.009850, -84.332978. It is maintained by State Highway Agency.
US 19 SR 400 carries US 19 SR 400 over M9408 Rivside DR- Chatt. The bridge is 207 meters long and was built in 1970, with reconstruction in 1987.
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.