I-495
I-495 in 1.13 Fr 95 & 1.71 To 620, Fairfax County, Virginia received a condition grade of C (56/100). Built in 1961, the bridge carries 228K vehicles daily on I-495 over Ns Railway.
I-495 carries a C on the BridgeSafety Condition Score with 56/100. Component ratings sit in the middle of the FHWA NBI distribution; rehabilitation programming is likely on the owning agency’s medium-term horizon.
The bridge was built in 1961 and is now 65 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. I-495 carries an average daily traffic count of 227,699 vehicles, with 14 lane(s) crossing Ns Railway. 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 is a 65-year-old bridge located 1.13 Fr 95 & 1.71 To 620 in Fairfax County, Virginia. The bridge carries I-495 over Ns Railway with 14 traffic lanes, handling approximately 228K vehicles per day. Built in 1961 and reconstructed in 2002, the structure spans 86.3 meters.
The bridge received a Condition Grade of C (56/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 6/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I-495 has a Condition Score of 56/100 (Grade C). Its deck is rated 5/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
I-495 was built in 1961 and reconstructed in 2002, making it 65 years old. The average bridge age in the United States is 48 years.
I-495 carries approximately 228K vehicles per day (average daily traffic). The bridge has 14 traffic lanes. It is 86.3 meters long and located on I-495 in 1.13 Fr 95 & 1.71 To 620, Fairfax County, Virginia.
No, I-495 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 is located 1.13 Fr 95 & 1.71 To 620 in Fairfax County, Virginia. The bridge carries I-495 over Ns Railway. Its coordinates are 38.797086, -77.193383. It is maintained by State Highway Agency.
I-495 carries I-495 over Ns Railway. The bridge is 86.3 meters long and was built in 1961, with reconstruction in 2002.
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.