US Bridges

Liberia Ave. over NS Railway

Good

Manassas city, Virginia · 00.45FR28/00.55TO689 · Structure no. 000000000024735

Built
1996
29 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
77 ft
1 main span
Daily traffic
35,524
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Liberia Ave. over NS Railway is a steel stringer/multi-beam or girder carrying Liberia Ave. over NS Railway in Manassas city, Virginia. It was built in 1996, so it is 29 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 35,524 vehicles a day, roughly 1% of them trucks, projected to reach 51,494 by 2042. The structure is 77 ft (23.5 m) long and 89 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLiberia Ave.
CrossesNS Railway
Location00.45FR28/00.55TO689
RouteCity Street 0
CountyManassas city
StateVirginia
Coordinates38.75732, -77.45297
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 inspectionApril 2024
Inspection intervalevery 18 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.1 US tons
Inventory rating61 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length77 ft (23.5 m)
Longest span77 ft (23.5 m)
Deck width89 ft (27.2 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,524 (2022)
Projected traffic51,494 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Liberia Ave. over NS Railway built?

It was built in 1996, making it 29 years old in 2025.

What condition is Liberia Ave. 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 April 2024.

How much traffic does Liberia Ave. over NS Railway carry?

About 35,524 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Liberia Ave. over NS Railway?

The structure is 77 ft (23.5 m) long with a longest span of 77 ft (23.5 m) and a deck 89 ft wide.

Who owns Liberia Ave. over NS Railway?

It is owned by the City or Municipal Highway Agency.