Dalton Highway over Kuparuk River
FairNorth Slope Borough, Alaska · Mile Point 289.2 · Structure no. 1943
- Built
- 1994
- 31 years old
- Condition
- Fair
- inspected July 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 85 ft
- 1 main span
- Daily traffic
- 130
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Dalton Highway over Kuparuk River is a prestressed concrete tee beam carrying Dalton Highway over Kuparuk River in North Slope Borough, Alaska. It was built in 1994, so it is 31 years old, younger than the Alaska average of 35.9 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.
It carries about 130 vehicles a day, roughly 75% of them trucks, projected to reach 190 by 2039. The structure is 85 ft (25.9 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dalton Highway over Kuparuk River built?
It was built in 1994, making it 31 years old in 2025.
What condition is Dalton Highway over Kuparuk 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 2024.
How much traffic does Dalton Highway over Kuparuk River carry?
About 130 vehicles per day (2020 count), of which roughly 75% are trucks.
How long is Dalton Highway over Kuparuk River?
The structure is 85 ft (25.9 m) long with a longest span of 84 ft (25.6 m) and a deck 32 ft wide.
Who owns Dalton Highway over Kuparuk River?
It is owned by the State Highway Agency.