US Bridges

TR Bridge(ramp K) over Inner Loop

Fair

District of Columbia, District of Columbia · Rp K over Inner Loop · Structure no. 1203

Built
1964
61 years old
Condition
Fair
inspected June 2024
Type
Frame
Concrete Continuous
Length
321 ft
2 main spans
Daily traffic
22,400
2018 count
Owner
State
State Highway Agency

About this bridge

TR Bridge(ramp K) over Inner Loop is a concrete continuous frame carrying TR Bridge(ramp K) over Inner Loop in District of Columbia, District of Columbia. It was built in 1964, so it is 61 years old, younger 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 6 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 22,400 vehicles a day, roughly 1% of them trucks, projected to reach 22,400 by 2028. The structure is 321 ft (97.8 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesTR Bridge(ramp K)
CrossesInner Loop
LocationRp K over Inner Loop
RouteInterstate 66
CountyDistrict of Columbia
StateDistrict of Columbia
Coordinates38.89281, -77.05379
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating92 US tons
Inventory rating55 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+3 approach)
Design loadHS 20
Structure length321 ft (97.8 m)
Longest span61 ft (18.6 m)
Deck width46 ft (13.9 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,400 (2018)
Projected traffic22,400 by 2028
Trucks1%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was TR Bridge(ramp K) over Inner Loop built?

It was built in 1964, making it 61 years old in 2025.

What condition is TR Bridge(ramp K) over Inner Loop 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 June 2024.

How much traffic does TR Bridge(ramp K) over Inner Loop carry?

About 22,400 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is TR Bridge(ramp K) over Inner Loop?

The structure is 321 ft (97.8 m) long with a longest span of 61 ft (18.6 m) and a deck 46 ft wide.

Who owns TR Bridge(ramp K) over Inner Loop?

It is owned by the State Highway Agency.