SR-408
SR-408 in SR-408 Summerlin AVE, Orange County, Florida received a condition grade of B (76/100). Built in 1973, the bridge carries 187K vehicles daily on SR-408 over Summerlin Avenue.
SR-408 carries a B on the BridgeSafety Condition Score with 76/100. 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 1973 and is now 53 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. SR-408 carries an average daily traffic count of 187,000 vehicles, with 9 lane(s) crossing Summerlin Avenue. The owning agency is State Toll Authority; 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-408 is a 53-year-old bridge located SR-408 Summerlin AVE in Orange County, Florida. The bridge carries SR-408 over Summerlin Avenue with 9 traffic lanes, handling approximately 187K vehicles per day. Built in 1973 and reconstructed in 2007, the structure spans 50.6 meters.
The bridge received a Condition Grade of B (76/100) 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 Toll Authority.
Location Map
Frequently Asked Questions
SR-408 has a Condition Score of 76/100 (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-408 was built in 1973 and reconstructed in 2007, making it 53 years old. The average bridge age in the United States is 48 years.
SR-408 carries approximately 187K vehicles per day (average daily traffic). The bridge has 9 traffic lanes. It is 50.6 meters long and located on SR-408 in SR-408 Summerlin AVE, Orange County, Florida.
No, SR-408 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-408 is located SR-408 Summerlin AVE in Orange County, Florida. The bridge carries SR-408 over Summerlin Avenue. Its coordinates are 28.537044, -81.368392. It is maintained by State Toll Authority.
SR-408 carries SR-408 over Summerlin Avenue. The bridge is 50.6 meters long and was built in 1973, with reconstruction in 2007.
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.