Alaska Highway over Johnson River
PoorPosted for loadSoutheast Fairbanks Census Area, Alaska · Mile Point 156.1 · Structure no. 0518
- Built
- 1944
- 81 years old, rebuilt 1952
- Condition
- Poor
- inspected July 2024
- Type
- Truss - Thru
- Steel
- Length
- 974 ft
- 5 main spans
- Daily traffic
- 180
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Alaska Highway over Johnson River is a steel truss - thru carrying Alaska Highway over Johnson River in Southeast Fairbanks Census Area, Alaska. It was built in 1944 and reconstructed in 1952, 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 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. Its operating status is: posted for load restriction.
It carries about 180 vehicles a day, roughly 28% of them trucks, projected to reach 230 by 2039. The structure is 974 ft (297 m) long and 27 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 Alaska Highway over Johnson River built?
It was built in 1944, making it 81 years old in 2025. It was reconstructed in 1952.
What condition is Alaska Highway over Johnson 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 Alaska Highway over Johnson River carry?
About 180 vehicles per day (2020 count), of which roughly 28% are trucks.
How long is Alaska Highway over Johnson River?
The structure is 974 ft (297 m) long with a longest span of 200 ft (61 m) and a deck 27 ft wide.
Who owns Alaska Highway over Johnson River?
It is owned by the State Highway Agency.