Etsbrg Hnydew RD over Mattole River
FairPosted for loadHumboldt County, California · 5.77 MI N/O Thorne RD · Structure no. 04C0174
- Built
- 1928
- 97 years old
- Condition
- Fair
- inspected July 2023
- Type
- Arch - Deck
- Concrete
- Length
- 103 ft
- 1 main span
- Daily traffic
- 200
- 2009 count
- Owner
- County
- County Highway Agency
About this bridge
Etsbrg Hnydew RD over Mattole River is a concrete arch - deck carrying Etsbrg Hnydew RD over Mattole River in Humboldt County, California. It was built in 1928, so it is 97 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for other load-capacity restriction.
It carries about 200 vehicles a day, roughly 5% of them trucks, projected to reach 229 by 2045. The structure is 103 ft (31.4 m) long and 20 ft wide. If it were closed, the detour would be 55.9 mi (90 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Etsbrg Hnydew RD over Mattole River built?
It was built in 1928, making it 97 years old in 2025.
What condition is Etsbrg Hnydew RD over Mattole River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.
How much traffic does Etsbrg Hnydew RD over Mattole River carry?
About 200 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is Etsbrg Hnydew RD over Mattole River?
The structure is 103 ft (31.4 m) long with a longest span of 95 ft (29 m) and a deck 20 ft wide.
Who owns Etsbrg Hnydew RD over Mattole River?
It is owned by the County Highway Agency.