Structure 1104 · District of Columbia County, DC

Southwest Freeway over South Capitol Street

Carries Southwest Freeway over South Capitol Street, S.capitol ST Ramp G SW Fy.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT551 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9Substructure 5/9 · sets the rating

551 ft end to end, longest span 200 ft: about 1.5 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.

Built1965rebuilt 1991
Length550.9 ft167.9 m
Daily traffic155,000counted 2018
Last inspectedMarch 2023every 24 months

Location

StateDistrict of Columbia
CountyDistrict of Columbia
LocationS.capitol ST Ramp G SW Fy
CarriesSouthwest Freeway
CrossesSouth Capitol Street
Coordinates38.88146, -77.00849

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length550.9 ft (167.9 m)
Max Span200.1 ft (61 m)
Deck Width96.5 ft (29.4 m)
Deck Area4936.3 sq m
Main Spans4
Year Built1965 (reconstructed 1991)

Traffic

Avg Daily Traffic155,000 (2018)
Truck Traffic5%
Lanes On Bridge7
Lanes Under Bridge6

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1104

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.

Nearby Bridges