Structure 1401 · District of Columbia County, DC

Southeast FWY over 8th Street

Carries Southeast FWY over 8th Street, SE Frwy Over 8th ST.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT368 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

368 ft end to end, longest span 81 ft: about 5 semi-trucks nose to tail. 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.

Built1970rebuilt 2002
Length368.1 ft112.2 m
Daily traffic114,500counted 2007
Last inspectedMarch 2023every 24 months

Location

StateDistrict of Columbia
CountyDistrict of Columbia
LocationSE Frwy Over 8th ST
CarriesSoutheast FWY
Crosses8th Street
Coordinates38.87891, -76.99605

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length368.1 ft (112.2 m)
Max Span80.7 ft (24.6 m)
Deck Width167.3 ft (51 m)
Deck Area5722.2 sq m
Main Spans5
Year Built1970 (reconstructed 2002)

Traffic

Avg Daily Traffic114,500 (2007)
Truck Traffic5%
Lanes On Bridge10
Lanes Under Bridge4

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 Number1401

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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