Structure 6626 · Fairfax County, VA

Ramp To N.b. 495 over Dar And Toll Rd. Ext. EB

Carries Ramp To N.b. 495 over Dar And Toll Rd. Ext. EB, 0.10fr267eb 0.05to495nbl.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT316 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

316 ft end to end, longest span 93 ft: about 4 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built196165 years old
Length315.9 ft96.3 m
Daily traffic9,724counted 2022
Last inspectedMay 2023every 24 months

Location

StateVirginia
CountyFairfax
Location0.10fr267eb 0.05to495nbl
CarriesRamp To N.b. 495
CrossesDar And Toll Rd. Ext. EB
Coordinates38.93064, -77.20985

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length315.9 ft (96.3 m)
Max Span92.8 ft (28.3 m)
Deck Width26.9 ft (8.2 m)
Deck Area789.7 sq m
Main Spans4
Year Built1961

Traffic

Avg Daily Traffic9,724 (2022)
Lanes On Bridge1
Lanes Under Bridge7

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000006626

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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