Dillon Road over Salt River
GoodHumboldt County, California · N of Port Kenyon RD · Structure no. 04C0012
- Built
- 1994
- 31 years old
- Condition
- Good
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 241 ft
- 2 main spans
- Daily traffic
- 371
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Dillon Road over Salt River is a prestressed concrete continuous box beam or girders - multiple carrying Dillon Road over Salt River in Humboldt County, California. It was built in 1994, so it is 31 years old, younger than the California average of 54.8 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 371 vehicles a day, roughly 5% of them trucks, projected to reach 480 by 2042. The structure is 241 ft (73.6 m) long and 29 ft wide. If it were closed, the detour would be 4.3 mi (7 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dillon Road over Salt River built?
It was built in 1994, making it 31 years old in 2025.
What condition is Dillon Road over Salt 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 August 2024.
How much traffic does Dillon Road over Salt River carry?
About 371 vehicles per day (2014 count), of which roughly 5% are trucks.
How long is Dillon Road over Salt River?
The structure is 241 ft (73.6 m) long with a longest span of 120 ft (36.6 m) and a deck 29 ft wide.
Who owns Dillon Road over Salt River?
It is owned by the County Highway Agency.