Salmon Creek Road over Salmon Creek
PoorHumboldt County, California · 2.65 MI Ave of the Giants · Structure no. 04C0056
- Built
- 1959
- 66 years old
- Condition
- Poor
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 142 ft
- 2 main spans
- Daily traffic
- 226
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Salmon Creek Road over Salmon Creek is a steel stringer/multi-beam or girder carrying Salmon Creek Road over Salmon Creek in Humboldt County, California. It was built in 1959, so it is 66 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 226 vehicles a day, roughly 2% of them trucks, projected to reach 327 by 2042. The structure is 142 ft (43.3 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Salmon Creek Road over Salmon Creek built?
It was built in 1959, making it 66 years old in 2025.
What condition is Salmon Creek Road over Salmon Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.
How much traffic does Salmon Creek Road over Salmon Creek carry?
About 226 vehicles per day (2011 count), of which roughly 2% are trucks.
How long is Salmon Creek Road over Salmon Creek?
The structure is 142 ft (43.3 m) long with a longest span of 68 ft (20.7 m) and a deck 28 ft wide.
Who owns Salmon Creek Road over Salmon Creek?
It is owned by the County Highway Agency.