I-81 Nbl over Island RD & Mumpower Ck
FairWashington County, Virginia · 1.96 R 11& 3.58 Tenn Line · Structure no. 000000000020024
- Built
- 1961
- 64 years old, rebuilt 2001
- Condition
- Fair
- inspected July 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 252 ft
- 5 main spans
- Daily traffic
- 23,016
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-81 Nbl over Island RD & Mumpower Ck is a prestressed concrete box beam or girders - multiple carrying I-81 Nbl over Island RD & Mumpower Ck in Washington County, Virginia. It was built in 1961 and reconstructed in 2001, so it is 64 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 5 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 23,016 vehicles a day, roughly 1% of them trucks, projected to reach 27,635 by 2045. The structure is 252 ft (76.8 m) long and 62 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-81 Nbl over Island RD & Mumpower Ck built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2001.
What condition is I-81 Nbl over Island RD & Mumpower Ck 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 July 2023.
How much traffic does I-81 Nbl over Island RD & Mumpower Ck carry?
About 23,016 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is I-81 Nbl over Island RD & Mumpower Ck?
The structure is 252 ft (76.8 m) long with a longest span of 56 ft (17.1 m) and a deck 62 ft wide.
Who owns I-81 Nbl over Island RD & Mumpower Ck?
It is owned by the State Highway Agency.