Dalton Highway over Slate Creek
GoodYukon-Koyukuk Census Area, Alaska · Mile Point 174.8 · Structure no. 1332
- Built
- 1972
- 53 years old, rebuilt 1992
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 92 ft
- 3 main spans
- Daily traffic
- 140
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Dalton Highway over Slate Creek is a steel stringer/multi-beam or girder carrying Dalton Highway over Slate Creek in Yukon-Koyukuk Census Area, Alaska. It was built in 1972 and reconstructed in 1992, so it is 53 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 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 140 vehicles a day, roughly 62% of them trucks, projected to reach 560 by 2039. The structure is 92 ft (28 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
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dalton Highway over Slate Creek built?
It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1992.
What condition is Dalton Highway over Slate 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 2024.
How much traffic does Dalton Highway over Slate Creek carry?
About 140 vehicles per day (2020 count), of which roughly 62% are trucks.
How long is Dalton Highway over Slate Creek?
The structure is 92 ft (28 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.
Who owns Dalton Highway over Slate Creek?
It is owned by the State Highway Agency.