Tompkins Hill Road over Salmon Creek
GoodHumboldt County, California · 0.8 MI South of Route 345 · Structure no. 04C0200
- Built
- 1929
- 96 years old
- Condition
- Good
- inspected June 2023
- Type
- Tee Beam
- Concrete
- Length
- 43 ft
- 1 main span
- Daily traffic
- 179
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Tompkins Hill Road over Salmon Creek is a concrete tee beam carrying Tompkins Hill Road over Salmon Creek in Humboldt County, California. It was built in 1929, so it is 96 years old, older 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 179 vehicles a day, roughly 2% of them trucks, projected to reach 271 by 2045. The structure is 43 ft (13.1 m) long and 18 ft wide. If it were closed, the detour would be 10.6 mi (17 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Tompkins Hill Road over Salmon Creek built?
It was built in 1929, making it 96 years old in 2025.
What condition is Tompkins Hill Road over Salmon Creek 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 June 2023.
How much traffic does Tompkins Hill Road over Salmon Creek carry?
About 179 vehicles per day (2011 count), of which roughly 2% are trucks.
How long is Tompkins Hill Road over Salmon Creek?
The structure is 43 ft (13.1 m) long with a longest span of 38 ft (11.6 m) and a deck 18 ft wide.
Who owns Tompkins Hill Road over Salmon Creek?
It is owned by the County Highway Agency.