Structure 7099 · Fairfax County, VA

Fair Lakes Circle over Tributary Big Rocky Run

Carries Fair Lakes Circle over Tributary Big Rocky Run, 00.55fr7700/00.03to7700.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 7/9Substructure 7/9

31 ft end to end. Lengths and the car 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 deck arch.

Built198640 years old
Length30.8 ft9.4 m
Daily traffic11,231counted 2022
Last inspectedFebruary 2023every 24 months

Location

StateVirginia
CountyFairfax
Location00.55fr7700/00.03to7700
CarriesFair Lakes Circle
CrossesTributary Big Rocky Run
Coordinates38.86002, -77.37870

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length30.8 ft (9.4 m)
Max Span28.9 ft (8.8 m)
Deck Width116.1 ft (35.4 m)
Deck Area332.8 sq m
Main Spans1
Year Built1986

Traffic

Avg Daily Traffic11,231 (2022)
Lanes On Bridge5

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000007099

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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