Shelter Cove RD over Mattole River
GoodHumboldt County, California · 0.7 MI W/O Briceland RD · Structure no. 04C0016
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected July 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 191 ft
- 2 main spans
- Daily traffic
- 1,302
- 2008 count
- Owner
- County
- County Highway Agency
About this bridge
Shelter Cove RD over Mattole River is a concrete continuous box beam or girders - multiple carrying Shelter Cove RD over Mattole River in Humboldt County, California. It was built in 1981, so it is 44 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 1,302 vehicles a day, roughly 2% of them trucks, projected to reach 546 by 2045. The structure is 191 ft (58.2 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Shelter Cove RD over Mattole River built?
It was built in 1981, making it 44 years old in 2025.
What condition is Shelter Cove RD over Mattole 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 July 2023.
How much traffic does Shelter Cove RD over Mattole River carry?
About 1,302 vehicles per day (2008 count), of which roughly 2% are trucks.
How long is Shelter Cove RD over Mattole River?
The structure is 191 ft (58.2 m) long with a longest span of 95 ft (29 m) and a deck 29 ft wide.
Who owns Shelter Cove RD over Mattole River?
It is owned by the County Highway Agency.