US Bridges

Loudoun Co. Pkwy. over Dulles Greenway

Fair

Loudoun County, Virginia · 01.60FR772/01.68TO625 · Structure no. 000000000024567

Built
1995
30 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
224 ft
2 main spans
Daily traffic
15,113
2022 count
Owner
State
State Highway Agency

About this bridge

Loudoun Co. Pkwy. over Dulles Greenway is a steel continuous stringer/multi-beam or girder carrying Loudoun Co. Pkwy. over Dulles Greenway in Loudoun County, Virginia. It was built in 1995, so it is 30 years old, younger 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 15,113 vehicles a day, roughly 1% of them trucks, projected to reach 22,065 by 2045. The structure is 224 ft (68.3 m) long and 133 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesLoudoun Co. Pkwy.
CrossesDulles Greenway
Location01.60FR772/01.68TO625
RouteCounty Highway 607
CountyLoudoun County
StateVirginia
Coordinates38.99738, -77.4786
Functional classUrban Minor 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.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.5 US tons
Inventory rating33.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length224 ft (68.3 m)
Longest span117 ft (35.7 m)
Deck width133 ft (40.4 m)
Roadway width129 ft (39.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,113 (2022)
Projected traffic22,065 by 2045
Trucks1%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Loudoun Co. Pkwy. over Dulles Greenway built?

It was built in 1995, making it 30 years old in 2025.

What condition is Loudoun Co. Pkwy. over Dulles Greenway 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 March 2023.

How much traffic does Loudoun Co. Pkwy. over Dulles Greenway carry?

About 15,113 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Loudoun Co. Pkwy. over Dulles Greenway?

The structure is 224 ft (68.3 m) long with a longest span of 117 ft (35.7 m) and a deck 133 ft wide.

Who owns Loudoun Co. Pkwy. over Dulles Greenway?

It is owned by the State Highway Agency.