US Bridges

Klingle Road N.W. over Rock Creek

Fair

District of Columbia, District of Columbia · Over Rock Creek · Structure no. 0026-3

Built
1947
78 years old, rebuilt 1994
Condition
Fair
inspected July 2024
Type
Girder and Floorbeam System
Steel
Length
133 ft
3 main spans
Daily traffic
9,000
2018 count
Owner
State
State Highway Agency

About this bridge

Klingle Road N.W. over Rock Creek is a steel girder and floorbeam system carrying Klingle Road N.W. over Rock Creek in District of Columbia, District of Columbia. It was built in 1947 and reconstructed in 1994, so it is 78 years old, older than the District of Columbia average of 63.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 9,000 vehicles a day, roughly 5% of them trucks, projected to reach 9,000 by 2027. The structure is 133 ft (40.5 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesKlingle Road N.W.
CrossesRock Creek
LocationOver Rock Creek
RouteCity Street 0
CountyDistrict of Columbia
StateDistrict of Columbia
Coordinates38.93419, -77.04923
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.1 US tons
Inventory rating39.1 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span60 ft (18.3 m)
Deck width40 ft (12.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,000 (2018)
Projected traffic9,000 by 2027
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Klingle Road N.W. over Rock Creek built?

It was built in 1947, making it 78 years old in 2025. It was reconstructed in 1994.

What condition is Klingle Road N.W. over Rock Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Klingle Road N.W. over Rock Creek carry?

About 9,000 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Klingle Road N.W. over Rock Creek?

The structure is 133 ft (40.5 m) long with a longest span of 60 ft (18.3 m) and a deck 40 ft wide.

Who owns Klingle Road N.W. over Rock Creek?

It is owned by the State Highway Agency.