US Bridges

Spout Run Parkway over Spout Run

Good

Arlington County, Virginia · 1.1 Miles West of Gwmp. · Structure no. 3300039P0000000

Built
1947
78 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
8,222
2022 count
Owner
Federal
National Park Service

About this bridge

Spout Run Parkway over Spout Run is a concrete culvert carrying Spout Run Parkway over Spout Run in Arlington County, Virginia. It was built in 1947, so it is 78 years old, older 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 8,222 vehicles a day, roughly 10% of them trucks, projected to reach 9,866 by 2042. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSpout Run Parkway
CrossesSpout Run
Location1.1 Miles West of Gwmp.
RouteFederal Lands Road 4
Coordinates38.89914, -77.08986
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,222 (2022)
Projected traffic9,866 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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$23,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Spout Run Parkway over Spout Run built?

It was built in 1947, making it 78 years old in 2025.

What condition is Spout Run Parkway over Spout Run 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 April 2023.

How much traffic does Spout Run Parkway over Spout Run carry?

About 8,222 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Spout Run Parkway over Spout Run?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m).

Who owns Spout Run Parkway over Spout Run?

It is owned by the National Park Service.