US Bridges

TR Bridge(ramp F) over Inner Loop

Fair

District of Columbia, District of Columbia · TR Bridge & Inner Loo · Structure no. 1206

Built
1964
61 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
145 ft
2 main spans
Daily traffic
22,000
2018 count
Owner
State
State Highway Agency

About this bridge

TR Bridge(ramp F) over Inner Loop is a steel continuous stringer/multi-beam or girder carrying TR Bridge(ramp F) 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 22,000 vehicles a day, roughly 1% of them trucks, projected to reach 22,000 by 2028. The structure is 145 ft (44.2 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesTR Bridge(ramp F)
CrossesInner Loop
LocationTR Bridge & Inner Loo
RouteInterstate 66
CountyDistrict of Columbia
StateDistrict of Columbia
Coordinates38.89556, -77.05396
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span81 ft (24.7 m)
Deck width27 ft (8.2 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,000 (2018)
Projected traffic22,000 by 2028
Trucks1%
Lanes on structure1
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 million
NavigationNot applicable (no waterway)

Frequently asked questions

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

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

What condition is TR Bridge(ramp F) 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 December 2023.

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

About 22,000 vehicles per day (2018 count), of which roughly 1% are trucks.

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

The structure is 145 ft (44.2 m) long with a longest span of 81 ft (24.7 m) and a deck 27 ft wide.

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

It is owned by the State Highway Agency.