Dalton Highway over Happy Valley Creek
GoodNorth Slope Borough, Alaska · Mile Point 334.7 · Structure no. 4062
- Built
- 1995
- 30 years old
- Condition
- Good
- inspected July 2024
- Type
- Culvert
- Steel
- Length
- 48 ft
- 3 main spans
- Daily traffic
- 90
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Dalton Highway over Happy Valley Creek is a steel culvert carrying Dalton Highway over Happy Valley Creek in North Slope Borough, Alaska. It was built in 1995, so it is 30 years old, younger 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 90 vehicles a day, roughly 66% of them trucks, projected to reach 110 by 2039. The structure is 48 ft (14.6 m) long. 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dalton Highway over Happy Valley Creek built?
It was built in 1995, making it 30 years old in 2025.
What condition is Dalton Highway over Happy Valley 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 Happy Valley Creek carry?
About 90 vehicles per day (2020 count), of which roughly 66% are trucks.
How long is Dalton Highway over Happy Valley Creek?
The structure is 48 ft (14.6 m) long with a longest span of 14 ft (4.3 m).
Who owns Dalton Highway over Happy Valley Creek?
It is owned by the State Highway Agency.