Alaska Highway over Robertson River
FairSoutheast Fairbanks Census Area, Alaska · Mile Point 123.2 · Structure no. 0509
- Built
- 1944
- 81 years old
- Condition
- Fair
- inspected July 2024
- Type
- Truss - Deck
- Steel
- Length
- 1,979 ft
- 9 main spans
- Daily traffic
- 230
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Alaska Highway over Robertson River is a steel truss - deck carrying Alaska Highway over Robertson River in Southeast Fairbanks Census Area, Alaska. It was built in 1944, so it is 81 years old, older 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 6 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 230 vehicles a day, roughly 19% of them trucks, projected to reach 600 by 2039. The structure is 1,979 ft (603.2 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Alaska Highway over Robertson River built?
It was built in 1944, making it 81 years old in 2025.
What condition is Alaska Highway over Robertson 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 Alaska Highway over Robertson River carry?
About 230 vehicles per day (2020 count), of which roughly 19% are trucks.
How long is Alaska Highway over Robertson River?
The structure is 1,979 ft (603.2 m) long with a longest span of 200 ft (61 m) and a deck 28 ft wide.
Who owns Alaska Highway over Robertson River?
It is owned by the State Highway Agency.