Dalton Highway over Hammond River
PoorYukon-Koyukuk Census Area, Alaska · Mile Point 190.0 · Structure no. 1336
- Built
- 1972
- 53 years old, rebuilt 1992
- Condition
- Poor
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 152 ft
- 1 main span
- Daily traffic
- 110
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Dalton Highway over Hammond River is a steel stringer/multi-beam or girder carrying Dalton Highway over Hammond River 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 110 vehicles a day, roughly 62% of them trucks, projected to reach 240 by 2039. The structure is 152 ft (46.3 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
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dalton Highway over Hammond River built?
It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1992.
What condition is Dalton Highway over Hammond River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.
How much traffic does Dalton Highway over Hammond River carry?
About 110 vehicles per day (2020 count), of which roughly 62% are trucks.
How long is Dalton Highway over Hammond River?
The structure is 152 ft (46.3 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.
Who owns Dalton Highway over Hammond River?
It is owned by the State Highway Agency.