US Bridges

Gwmp over North Entrance to Nation

Fair

Arlington County, Virginia · 1.1 Miles South of I-395. · Structure no. 3300021P0000000

Built
1941
84 years old, rebuilt 2007
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
59 ft
1 main span
Daily traffic
15,661
2022 count
Owner
Federal
National Park Service

About this bridge

Gwmp over North Entrance to Nation is a steel stringer/multi-beam or girder carrying Gwmp over North Entrance to Nation in Arlington County, Virginia. It was built in 1941 and reconstructed in 2007, so it is 84 years old, older than the Virginia average of 50.7 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 15,661 vehicles a day, roughly 1% of them trucks, projected to reach 18,793 by 2042. The structure is 59 ft (18.1 m) long and 108 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesGwmp
CrossesNorth Entrance to Nation
Location1.1 Miles South of I-395.
RouteFederal Lands Road 1
CountyArlington County
StateVirginia
Coordinates38.85728, -77.04667
Functional classUrban Other Principal Arterial

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length59 ft (18.1 m)
Longest span56 ft (17.1 m)
Deck width108 ft (33 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,661 (2022)
Projected traffic18,793 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

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$150,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Gwmp over North Entrance to Nation built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 2007.

What condition is Gwmp over North Entrance to Nation 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 April 2023.

How much traffic does Gwmp over North Entrance to Nation carry?

About 15,661 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Gwmp over North Entrance to Nation?

The structure is 59 ft (18.1 m) long with a longest span of 56 ft (17.1 m) and a deck 108 ft wide.

Who owns Gwmp over North Entrance to Nation?

It is owned by the National Park Service.