BridgeSafety
Fairfax County, VA · Structure #000000000006341

I-66 and Metrorail

I-66 and Metrorail in 0073243 0170495, Fairfax County, Virginia received a condition grade of F (0/100). Built in 1964, the bridge carries 146K vehicles daily on I-66 and Metrorail over Bear Branch. It is classified as structurally deficient.

F
0/100
0
Condition Score
146K
Daily Traffic
1964
Year Built
7m
Length

Component Ratings

DeckSerious
0/9

The riding surface — evaluated for cracking, spalling, and wear

SuperstructureSerious
0/9

Beams, girders, and trusses that support the deck

SubstructureSerious
0/9

Piers, abutments, and foundations below the deck

Bridge Details

Road
I-66 and Metrorail
Crosses Over
Bear Branch
State
Virginia
County
Fairfax County
Location
0073243 0170495
Year Built
1964
Age
62 years
Daily Traffic
146,066
Lanes
8
Length
7 meters
Owner
State Highway Agency
Structure Number
000000000006341

About This Bridge

I-66 and Metrorail is a 62-year-old bridge located 0073243 0170495 in Fairfax County, Virginia. The bridge carries I-66 and Metrorail over Bear Branch with 8 traffic lanes, handling approximately 146K vehicles per day. Built in 1964, the structure spans 7 meters.

The bridge received a Condition Grade of F (0/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 0/9 (serious), and substructure 0/9 (serious). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below — this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.

This bridge is owned and maintained by State Highway Agency.

Location Map

0073243 0170495, Fairfax County, Virginia

38.879069, -77.253425

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Frequently Asked Questions

I-66 and Metrorail has a Condition Score of 0/100 (Grade F). Its deck is rated 0/9, superstructure 0/9, and substructure 0/9 on the NBI scale. The bridge is classified as structurally deficient.

I-66 and Metrorail was built in 1964, making it 62 years old. The average bridge age in the United States is 48 years.

I-66 and Metrorail carries approximately 146K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 7 meters long and located on I-66 and Metrorail in 0073243 0170495, Fairfax County, Virginia.

Yes, I-66 and Metrorail is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.

I-66 and Metrorail is located 0073243 0170495 in Fairfax County, Virginia. The bridge carries I-66 and Metrorail over Bear Branch. Its coordinates are 38.879069, -77.253425. It is maintained by State Highway Agency.

I-66 and Metrorail carries I-66 and Metrorail over Bear Branch. The bridge is 7 meters long and was built in 1964.

Last updated:

Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.