12th ST over Humboldt Rvr
FairElko County, Nevada · Elko · Structure no. B1526
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 293 ft
- 3 main spans
- Daily traffic
- 18,400
- 2021 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
12th ST over Humboldt Rvr is a prestressed concrete continuous box beam or girders - multiple carrying 12th ST over Humboldt Rvr in Elko County, Nevada. It was built in 1979, so it is 46 years old, older than the Nevada average of 36.4 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 18,400 vehicles a day, roughly 4% of them trucks, projected to reach 19,000 by 2040. The structure is 293 ft (89.3 m) long and 57 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 12th ST over Humboldt Rvr built?
It was built in 1979, making it 46 years old in 2025.
What condition is 12th ST over Humboldt Rvr 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 August 2024.
How much traffic does 12th ST over Humboldt Rvr carry?
About 18,400 vehicles per day (2021 count), of which roughly 4% are trucks.
How long is 12th ST over Humboldt Rvr?
The structure is 293 ft (89.3 m) long with a longest span of 110 ft (33.5 m) and a deck 57 ft wide.
Who owns 12th ST over Humboldt Rvr?
It is owned by the City or Municipal Highway Agency.