US Bridges

Roberts Parkway over NS Railway

Good

Fairfax County, Virginia · 0.7 FR 643 & 0.2 to 651 · Structure no. 000000000025218

Built
2001
24 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
245 ft
2 main spans
Daily traffic
15,824
2022 count
Owner
State
State Highway Agency

About this bridge

Roberts Parkway over NS Railway is a steel continuous stringer/multi-beam or girder carrying Roberts Parkway over NS Railway in Fairfax County, Virginia. It was built in 2001, so it is 24 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 15,824 vehicles a day, roughly 1% of them trucks, projected to reach 17,978 by 2045. The structure is 245 ft (74.7 m) long and 91 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoberts Parkway
CrossesNS Railway
Location0.7 FR 643 & 0.2 to 651
RouteCounty Highway 6197
CountyFairfax County
StateVirginia
Coordinates38.79727, -77.30238
Functional classUrban Minor 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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.9 US tons
Inventory rating58.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length245 ft (74.7 m)
Longest span121 ft (36.9 m)
Deck width91 ft (27.6 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,824 (2022)
Projected traffic17,978 by 2045
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
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 proposedReplacement because of relocation of road
Estimated improvement cost$501 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Roberts Parkway over NS Railway built?

It was built in 2001, making it 24 years old in 2025.

What condition is Roberts Parkway over NS Railway 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 September 2023.

How much traffic does Roberts Parkway over NS Railway carry?

About 15,824 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Roberts Parkway over NS Railway?

The structure is 245 ft (74.7 m) long with a longest span of 121 ft (36.9 m) and a deck 91 ft wide.

Who owns Roberts Parkway over NS Railway?

It is owned by the State Highway Agency.