US Bridges

West Rock Street over Blacks Run

Good

Rockingham County, Virginia · .07N Main ST &.01N Lib ST · Structure no. 000000000020422

Built
1954
71 years old, rebuilt 2015
Condition
Good
inspected May 2023
Type
Slab
Concrete
Length
40 ft
1 main span
Daily traffic
1,700
1995 count
Owner
City
City or Municipal Highway Agency

About this bridge

West Rock Street over Blacks Run is a concrete slab carrying West Rock Street over Blacks Run in Rockingham County, Virginia. It was built in 1954 and reconstructed in 2015, so it is 71 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 1,700 vehicles a day, roughly 2% of them trucks, projected to reach 2,400 by 2042. The structure is 40 ft (12.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWest Rock Street
CrossesBlacks Run
Location.07N Main ST &.01N Lib ST
RouteCity Street 0
Coordinates38.45261, -78.86936
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating97 US tons
Inventory rating75 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width43 ft (13.2 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (1995)
Projected traffic2,400 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-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$225 million
NavigationNo navigation control on waterway

Frequently asked questions

When was West Rock Street over Blacks Run built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2015.

What condition is West Rock Street 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 2023.

How much traffic does West Rock Street over Blacks Run carry?

About 1,700 vehicles per day (1995 count), of which roughly 2% are trucks.

How long is West Rock Street over Blacks Run?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 43 ft wide.

Who owns West Rock Street over Blacks Run?

It is owned by the City or Municipal Highway Agency.