Structure 1113(RAMP E) · District of Columbia County, DC

Ramp E To 12th ST over Maine AVE & SW Frwy

Carries Ramp E To 12th ST over Maine AVE & SW Frwy, SW Frwy &maine Avenue.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,378 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

1,378 ft end to end, longest span 111 ft: about 3.8 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.

Built1961rebuilt 1995
Length1378.0 ft420 m
Daily traffic18,000counted 2018
Last inspectedFebruary 2024every 24 months

Location

StateDistrict of Columbia
CountyDistrict of Columbia
LocationSW Frwy &maine Avenue
CarriesRamp E To 12th ST
CrossesMaine AVE & SW Frwy
Coordinates38.88098, -77.02994

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1378.0 ft (420 m)
Max Span110.9 ft (33.8 m)
Deck Width41.3 ft (12.6 m)
Deck Area5,292 sq m
Main Spans18
Year Built1961 (reconstructed 1995)

Traffic

Avg Daily Traffic18,000 (2018)
Truck Traffic6%
Lanes On Bridge2
Lanes Under Bridge8

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical9 — Foundation above flood level
Structure Number1113(RAMP E)

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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