Upper Hoh Road over Alder Creek
GoodJefferson County, Washington · 2.1E JCT SR101 · Structure no. 082988000000000
- Built
- 1972
- 53 years old
- Condition
- Good
- inspected May 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 67 ft
- 1 main span
- Daily traffic
- 950
- 2020 count
- Owner
- County
- County Highway Agency
About this bridge
Upper Hoh Road over Alder Creek is a prestressed concrete tee beam carrying Upper Hoh Road over Alder Creek in Jefferson County, Washington. It was built in 1972, so it is 53 years old, older than the Washington average of 49.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 950 vehicles a day, roughly 5% of them trucks, projected to reach 600 by 2040. The structure is 67 ft (20.5 m) long and 31 ft wide. If it were closed, the detour would be 16.2 mi (26 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Upper Hoh Road over Alder Creek built?
It was built in 1972, making it 53 years old in 2025.
What condition is Upper Hoh Road over Alder 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 May 2024.
How much traffic does Upper Hoh Road over Alder Creek carry?
About 950 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Upper Hoh Road over Alder Creek?
The structure is 67 ft (20.5 m) long with a longest span of 61 ft (18.6 m) and a deck 31 ft wide.
Who owns Upper Hoh Road over Alder Creek?
It is owned by the County Highway Agency.