Dalton Highway over Roche Moutonnee Creek
GoodNorth Slope Borough, Alaska · Mile Point 265.5 · Structure no. 1519
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected July 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 122 ft
- 1 main span
- Daily traffic
- 130
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Dalton Highway over Roche Moutonnee Creek is a prestressed concrete tee beam carrying Dalton Highway over Roche Moutonnee Creek in North Slope Borough, Alaska. It was built in 2017, so it is 8 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 9 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 75% of them trucks, projected to reach 190 by 2039. The structure is 122 ft (37.2 m) long and 39 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 | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | No problems noted. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dalton Highway over Roche Moutonnee Creek built?
It was built in 2017, making it 8 years old in 2025.
What condition is Dalton Highway over Roche Moutonnee 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 Roche Moutonnee Creek carry?
About 130 vehicles per day (2020 count), of which roughly 75% are trucks.
How long is Dalton Highway over Roche Moutonnee Creek?
The structure is 122 ft (37.2 m) long with a longest span of 119 ft (36.3 m) and a deck 39 ft wide.
Who owns Dalton Highway over Roche Moutonnee Creek?
It is owned by the State Highway Agency.