US Bridges

Washington ST (400 over Ramp A;M;N;E;I-95N & S

Good

Alexandria city, Virginia · 3.96 FR 628 & 0.54 to 236 · Structure no. 000000000027073

Built
2004
21 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
335 ft
4 main spans
Daily traffic
24,222
2022 count
Owner
State
State Highway Agency

About this bridge

Washington ST (400 over Ramp A;M;N;E;I-95N & S is a prestressed concrete stringer/multi-beam or girder carrying Washington ST (400 over Ramp A;M;N;E;I-95N & S in Alexandria city, Virginia. It was built in 2004, so it is 21 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 24,222 vehicles a day, roughly 1% of them trucks, projected to reach 30,828 by 2042. The structure is 335 ft (102.1 m) long and 70 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesWashington ST (400
CrossesRamp A;M;N;E;I-95N & S
Location3.96 FR 628 & 0.54 to 236
RouteState Highway 400
CountyAlexandria city
StateVirginia
Coordinates38.79301, -77.04955
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.5 US tons
Inventory rating59.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length335 ft (102.1 m)
Longest span99 ft (30.2 m)
Deck width70 ft (21.3 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,222 (2022)
Projected traffic30,828 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Washington ST (400 over Ramp A;M;N;E;I-95N & S built?

It was built in 2004, making it 21 years old in 2025.

What condition is Washington ST (400 over Ramp A;M;N;E;I-95N & S in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Washington ST (400 over Ramp A;M;N;E;I-95N & S carry?

About 24,222 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Washington ST (400 over Ramp A;M;N;E;I-95N & S?

The structure is 335 ft (102.1 m) long with a longest span of 99 ft (30.2 m) and a deck 70 ft wide.

Who owns Washington ST (400 over Ramp A;M;N;E;I-95N & S?

It is owned by the State Highway Agency.