US Bridges

Southwest Freeway over Half ST to 2nd ST SW

Fair

District of Columbia, District of Columbia · Southwest Frwy &2nd S · Structure no. 1103(RAMP G)

Built
1963
62 years old, rebuilt 1991
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
578 ft
9 main spans
Daily traffic
25,000
2007 count
Owner
State
State Highway Agency

About this bridge

Southwest Freeway over Half ST to 2nd ST SW is a prestressed concrete stringer/multi-beam or girder carrying Southwest Freeway over Half ST to 2nd ST SW in District of Columbia, District of Columbia. It was built in 1963 and reconstructed in 1991, so it is 62 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 25,000 vehicles a day, roughly 5% of them trucks, projected to reach 20,000 by 2012. The structure is 578 ft (176.2 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouthwest Freeway
CrossesHalf ST to 2nd ST SW
LocationSouthwest Frwy &2nd S
RouteInterstate 395
Coordinates38.88253, -77.01207
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length578 ft (176.2 m)
Longest span70 ft (21.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,000 (2007)
Projected traffic20,000 by 2012
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Southwest Freeway over Half ST to 2nd ST SW built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1991.

What condition is Southwest Freeway over Half ST to 2nd ST SW 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 2025.

How much traffic does Southwest Freeway over Half ST to 2nd ST SW carry?

About 25,000 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is Southwest Freeway over Half ST to 2nd ST SW?

The structure is 578 ft (176.2 m) long with a longest span of 70 ft (21.3 m) and a deck 27 ft wide.

Who owns Southwest Freeway over Half ST to 2nd ST SW?

It is owned by the State Highway Agency.