Parks Highway over North Slough Tanana Riv
FairYukon-Koyukuk Census Area, Alaska · Mile Point 270.9 · Structure no. 0201
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 617 ft
- 7 main spans
- Daily traffic
- 1,710
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Parks Highway over North Slough Tanana Riv is a steel stringer/multi-beam or girder carrying Parks Highway over North Slough Tanana Riv in Yukon-Koyukuk Census Area, Alaska. It was built in 1967, so it is 58 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 1,710 vehicles a day, roughly 21% of them trucks, projected to reach 2,650 by 2039. The structure is 617 ft (188.2 m) long and 36 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Parks Highway over North Slough Tanana Riv built?
It was built in 1967, making it 58 years old in 2025.
What condition is Parks Highway over North Slough Tanana Riv 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 Parks Highway over North Slough Tanana Riv carry?
About 1,710 vehicles per day (2020 count), of which roughly 21% are trucks.
How long is Parks Highway over North Slough Tanana Riv?
The structure is 617 ft (188.2 m) long with a longest span of 94 ft (28.7 m) and a deck 36 ft wide.
Who owns Parks Highway over North Slough Tanana Riv?
It is owned by the State Highway Agency.