Structure 29438 · Alexandria County, VA

Route 1 over RT 1 Ramp; Csx; Main Blv

Carries Route 1 over RT 1 Ramp; Csx; Main Blv, 00.00frslat/00.00topota.

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
SEMI-TRUCK · 72 FT841 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

841 ft end to end, longest span 241 ft: about 2.3 football fields. 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.

Built200719 years old
Length840.6 ft256.2 m
Daily traffic44,286counted 2022
Last inspectedMay 2023every 24 months

Location

StateVirginia
CountyAlexandria
Location00.00frslat/00.00topota
CarriesRoute 1
CrossesRT 1 Ramp; Csx; Main Blv
Coordinates38.81977, -77.04934

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length840.6 ft (256.2 m)
Max Span241.1 ft (73.5 m)
Deck Width101.0 ft (30.8 m)
Deck Area7891.0 sq m
Main Spans4
Year Built2007

Traffic

Avg Daily Traffic44,286 (2022)
Truck Traffic2%
Lanes On Bridge6
Lanes Under Bridge5

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000029438

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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