Structure 1415 · District of Columbia County, DC

11th Street S.e. over Anacostia River

Carries 11th Street S.e. over Anacostia River, Anacostia River.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT923 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

923 ft end to end, longest span 234 ft: about 2.6 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.

Built201214 years old
Length922.9 ft281.3 m
Daily traffic25,000counted 2012
Last inspectedFebruary 2023every 24 months

Location

StateDistrict of Columbia
CountyDistrict of Columbia
LocationAnacostia River
Carries11th Street S.e.
CrossesAnacostia River
Coordinates38.87264, -76.99096

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length922.9 ft (281.3 m)
Max Span233.9 ft (71.3 m)
Deck Width66.6 ft (20.3 m)
Deck Area5710.4 sq m
Main Spans5
Year Built2012

Traffic

Avg Daily Traffic25,000 (2012)
Truck Traffic2%
Lanes On Bridge4
Lanes Under Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number1415

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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