SR 318 over White River
GoodClark County, Nevada · North of Hiko · Structure no. M1495B
- Built
- 1975
- 50 years old
- Condition
- Good
- inspected October 2024
- Type
- Culvert
- Steel
- Length
- 29 ft
- 3 main spans
- Daily traffic
- 1,650
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
SR 318 over White River is a steel culvert carrying SR 318 over White River in Clark County, Nevada. It was built in 1975, so it is 50 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 1,650 vehicles a day, roughly 30% of them trucks, projected to reach 1,300 by 2030. The structure is 29 ft (8.9 m) long. If it were closed, the detour would be 76.4 mi (123 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 318 over White River built?
It was built in 1975, making it 50 years old in 2025.
What condition is SR 318 over White River 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 SR 318 over White River carry?
About 1,650 vehicles per day (2021 count), of which roughly 30% are trucks.
How long is SR 318 over White River?
The structure is 29 ft (8.9 m) long with a longest span of 7 ft (2.1 m).
Who owns SR 318 over White River?
It is owned by the State Highway Agency.