Sierra ST over I 80
GoodWashoe County, Nevada · Reno · Structure no. I 992
- Built
- 1968
- 57 years old
- Condition
- Good
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 217 ft
- 4 main spans
- Daily traffic
- 7,650
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
Sierra ST over I 80 is a concrete continuous box beam or girders - multiple carrying Sierra ST over I 80 in Washoe County, Nevada. It was built in 1968, so it is 57 years old, older than the Nevada average of 36.4 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 7,650 vehicles a day, roughly 3% of them trucks, projected to reach 24,819 by 2040. The structure is 217 ft (66.1 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sierra ST over I 80 built?
It was built in 1968, making it 57 years old in 2025.
What condition is Sierra ST over I 80 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 April 2024.
How much traffic does Sierra ST over I 80 carry?
About 7,650 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is Sierra ST over I 80?
The structure is 217 ft (66.1 m) long with a longest span of 72 ft (21.9 m) and a deck 64 ft wide.
Who owns Sierra ST over I 80?
It is owned by the State Highway Agency.