Structure 71 · Arlington County, VA

Fort Myer Drive over I-66__ROSSLYN Tunnel

Carries Fort Myer Drive over I-66__ROSSLYN Tunnel, 00.02fr29nbl/00.02to29sbl.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT114 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

114 ft end to end, longest span 59 ft. 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 multi-beam bridge.

Built198343 years old
Length113.8 ft34.7 m
Daily traffic22,450counted 1987
Last inspectedJune 2023every 23 months

Location

StateVirginia
CountyArlington
Location00.02fr29nbl/00.02to29sbl
CarriesFort Myer Drive
CrossesI-66__ROSSLYN Tunnel
Coordinates38.89857, -77.07243

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length113.8 ft (34.7 m)
Max Span59.1 ft (18 m)
Deck Width70.9 ft (21.6 m)
Deck Area749.5 sq m
Main Spans2
Year Built1983

Traffic

Avg Daily Traffic22,450 (1987)
Truck Traffic1%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 23 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000000071

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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