US Bridges

South Liberty ST over Blacks Run

Good

Harrisonburg city, Virginia · 0.03MARKET ST0.03WATER ST · Structure no. 000000000020439

Built
1992
33 years old
Condition
Good
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
3,237
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

South Liberty ST over Blacks Run is a prestressed concrete box beam or girders - multiple carrying South Liberty ST over Blacks Run in Harrisonburg city, Virginia. It was built in 1992, so it is 33 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 3,237 vehicles a day, projected to reach 4,727 by 2042. The structure is 36 ft (10.9 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSouth Liberty ST
CrossesBlacks Run
Location0.03MARKET ST0.03WATER ST
RouteU.S. Route 11
CountyHarrisonburg city
StateVirginia
Coordinates38.44912, -78.87076
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54 US tons
Inventory rating38 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length36 ft (10.9 m)
Longest span36 ft (10.9 m)
Deck width49 ft (14.9 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,237 (2022)
Projected traffic4,727 by 2042
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was South Liberty ST over Blacks Run built?

It was built in 1992, making it 33 years old in 2025.

What condition is South Liberty ST over Blacks 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 May 2024.

How much traffic does South Liberty ST over Blacks Run carry?

About 3,237 vehicles per day (2022 count).

How long is South Liberty ST over Blacks Run?

The structure is 36 ft (10.9 m) long with a longest span of 36 ft (10.9 m) and a deck 49 ft wide.

Who owns South Liberty ST over Blacks Run?

It is owned by the City or Municipal Highway Agency.