I-81 Sbl over Route 8
GoodMontgomery County, Virginia · 5.13RT-177; 4.05RT-460 · Structure no. 000000000030365
- Built
- 2019
- 6 years old
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 147 ft
- 1 main span
- Daily traffic
- 25,152
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
I-81 Sbl over Route 8 is a steel stringer/multi-beam or girder carrying I-81 Sbl over Route 8 in Montgomery County, Virginia. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 25,152 vehicles a day, roughly 1% of them trucks, projected to reach 34,561 by 2042. The structure is 147 ft (44.9 m) long and 48 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-81 Sbl over Route 8 built?
It was built in 2019, making it 6 years old in 2025.
What condition is I-81 Sbl over Route 8 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 October 2024.
How much traffic does I-81 Sbl over Route 8 carry?
About 25,152 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is I-81 Sbl over Route 8?
The structure is 147 ft (44.9 m) long with a longest span of 141 ft (42.9 m) and a deck 48 ft wide.
Who owns I-81 Sbl over Route 8?
It is owned by the State Highway Agency.