Structure 3300003P0000000 · Fairfax County, VA

Cia Entrance Ramp over Gwmp

Carries Cia Entrance Ramp over Gwmp, 2.2 Miles South Of I-495..

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT167 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

167 ft end to end, longest span 112 ft: about 2 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.

Built1959rebuilt 1984
Length167.3 ft51 m
Daily traffic900counted 2013
Last inspectedApril 2023every 24 months

Location

StateVirginia
CountyFairfax
Location2.2 Miles South Of I-495.
CarriesCia Entrance Ramp
CrossesGwmp
Coordinates38.95836, -77.14350

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length167.3 ft (51 m)
Max Span111.9 ft (34.1 m)
Deck Width62.3 ft (19 m)
Deck Area969 sq m
Main Spans3
Year Built1959 (reconstructed 1984)

Traffic

Avg Daily Traffic900 (2013)
Truck Traffic9%
Lanes On Bridge4
Lanes Under Bridge5

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number3300003P0000000

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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