Structure 3450006P0000000 · District of Columbia County, DC

Rock Creek Parkway over Rock Creek

Carries Rock Creek Parkway over Rock Creek, 0.1 Miles From P Street..

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
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT134 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

134 ft end to end, longest span 66 ft. 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 rigid-frame bridge.

Built193690 years old
Length133.9 ft40.8 m
Daily traffic16,900counted 2019
Last inspectedJuly 2023every 24 months

Location

StateDistrict of Columbia
CountyDistrict of Columbia
Location0.1 Miles From P Street.
CarriesRock Creek Parkway
CrossesRock Creek
Coordinates38.90994, -77.05044

Physical Characteristics

MaterialConcrete Continuous
DesignFrame
Total Length133.9 ft (40.8 m)
Max Span65.6 ft (20 m)
Deck Width55.1 ft (16.8 m)
Deck Area685.4 sq m
Main Spans2
Year Built1936

Traffic

Avg Daily Traffic16,900 (2019)
Truck Traffic1%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerNational Park Service
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number3450006P0000000

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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