I-495 SBL
I-495 SBL in 01.29fr0066/00.83to0650, Fairfax County, Virginia received a condition grade of A (82/100). Built in 2010, the bridge carries 152K vehicles daily on I-495 SBL over Rte.50.
I-495 SBL carries an A on the BridgeSafety Condition Score with 82/100. 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 2010 and is 16 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-495 SBL carries an average daily traffic count of 151,785 vehicles, with 6 lane(s) crossing Rte.50. 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-495 SBL is a 16-year-old bridge located 01.29fr0066/00.83to0650 in Fairfax County, Virginia. The bridge carries I-495 SBL over Rte.50 with 6 traffic lanes, handling approximately 152K vehicles per day. Built in 2010, the structure spans 56.4 meters.
The bridge received a Condition Grade of A (82/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 8/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-495 SBL has a Condition Score of 82/100 (Grade A). Its deck is rated 7/9, superstructure 7/9, and substructure 8/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-495 SBL was built in 2010, making it 16 years old. The average bridge age in the United States is 48 years.
I-495 SBL carries approximately 152K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 56.4 meters long and located on I-495 SBL in 01.29fr0066/00.83to0650, Fairfax County, Virginia.
No, I-495 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-495 SBL is located 01.29fr0066/00.83to0650 in Fairfax County, Virginia. The bridge carries I-495 SBL over Rte.50. Its coordinates are 38.865528, -77.220306. It is maintained by State Highway Agency.
I-495 SBL carries I-495 SBL over Rte.50. The bridge is 56.4 meters long and was built in 2010.
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.