I-81 Nbl over Blacks Run
FairRockingham County, Virginia · 2.38 Rt 257 -0.93 11 Conn · Structure no. 000000000015823
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 138 ft
- 3 main spans
- Daily traffic
- 29,699
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-81 Nbl over Blacks Run is a prestressed concrete stringer/multi-beam or girder carrying I-81 Nbl over Blacks Run in Rockingham County, Virginia. It was built in 1966, so it is 59 years old, older than the Virginia average of 50.7 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 29,699 vehicles a day, roughly 1% of them trucks, projected to reach 38,385 by 2045. The structure is 138 ft (42.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-81 Nbl over Blacks Run built?
It was built in 1966, making it 59 years old in 2025.
What condition is I-81 Nbl over Blacks Run in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.
How much traffic does I-81 Nbl over Blacks Run carry?
About 29,699 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is I-81 Nbl over Blacks Run?
The structure is 138 ft (42.1 m) long with a longest span of 46 ft (14 m) and a deck 42 ft wide.
Who owns I-81 Nbl over Blacks Run?
It is owned by the State Highway Agency.