US Bridges

N Main ST over Blacks Run

Good

Harrisonburg city, Virginia · 0.01 E JNSON-0.01 W Jnson · Structure no. 000000000027512

Built
2002
23 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
55 ft
3 main spans
Daily traffic
8,637
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Main ST over Blacks Run is a concrete culvert carrying N Main ST over Blacks Run in Harrisonburg city, Virginia. It was built in 2002, so it is 23 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 8,637 vehicles a day, roughly 1% of them trucks, projected to reach 9,435 by 2045. The structure is 55 ft (16.8 m) long and 102 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesN Main ST
CrossesBlacks Run
Location0.01 E JNSON-0.01 W Jnson
RouteU.S. Route 11
Coordinates38.45585, -78.86481
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating44 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length55 ft (16.8 m)
Longest span17 ft (5.1 m)
Deck width102 ft (31.1 m)
Roadway width53 ft (16.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,637 (2022)
Projected traffic9,435 by 2045
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 N Main ST over Blacks Run built?

It was built in 2002, making it 23 years old in 2025.

What condition is N Main 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 2023.

How much traffic does N Main ST over Blacks Run carry?

About 8,637 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is N Main ST over Blacks Run?

The structure is 55 ft (16.8 m) long with a longest span of 17 ft (5.1 m) and a deck 102 ft wide.

Who owns N Main ST over Blacks Run?

It is owned by the City or Municipal Highway Agency.