US Bridges

TR Bridge(ramp A) over Inner Loop

Fair

District of Columbia, District of Columbia · TR Br Ramp&inner Loop · Structure no. 1201

Built
1964
61 years old
Condition
Fair
inspected January 2024
Type
Frame
Concrete Continuous
Length
165 ft
3 main spans
Daily traffic
13,400
2018 count
Owner
State
State Highway Agency

About this bridge

TR Bridge(ramp A) over Inner Loop is a concrete continuous frame carrying TR Bridge(ramp A) 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 13,400 vehicles a day, roughly 1% of them trucks, projected to reach 16,000 by 2028. The structure is 165 ft (50.3 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesTR Bridge(ramp A)
CrossesInner Loop
LocationTR Br Ramp&inner Loop
RouteInterstate 66
CountyDistrict of Columbia
StateDistrict of Columbia
Coordinates38.89376, -77.05442
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length165 ft (50.3 m)
Longest span57 ft (17.4 m)
Deck width39 ft (11.9 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,400 (2018)
Projected traffic16,000 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$2 million
NavigationNot applicable (no waterway)

Frequently asked questions

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

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

What condition is TR Bridge(ramp A) 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 January 2024.

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

About 13,400 vehicles per day (2018 count), of which roughly 1% are trucks.

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

The structure is 165 ft (50.3 m) long with a longest span of 57 ft (17.4 m) and a deck 39 ft wide.

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

It is owned by the State Highway Agency.