Hydaburg Highway over West Trocadero Creek
GoodPrince of Wales-Hyder Census Area, Alaska · Mile Point 18.3 · Structure no. 1730
- Built
- 1984
- 41 years old
- Condition
- Good
- inspected July 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 85 ft
- 1 main span
- Daily traffic
- 130
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Hydaburg Highway over West Trocadero Creek is a prestressed concrete tee beam carrying Hydaburg Highway over West Trocadero Creek in Prince of Wales-Hyder Census Area, Alaska. It was built in 1984, so it is 41 years old, older than the Alaska average of 35.9 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 130 vehicles a day, roughly 8% of them trucks, projected to reach 170 by 2039. The structure is 85 ft (25.9 m) long and 30 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 | 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 Hydaburg Highway over West Trocadero Creek built?
It was built in 1984, making it 41 years old in 2025.
What condition is Hydaburg Highway over West Trocadero 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 July 2023.
How much traffic does Hydaburg Highway over West Trocadero Creek carry?
About 130 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is Hydaburg Highway over West Trocadero Creek?
The structure is 85 ft (25.9 m) long with a longest span of 82 ft (25 m) and a deck 30 ft wide.
Who owns Hydaburg Highway over West Trocadero Creek?
It is owned by the State Highway Agency.