Parks Highway over Susitna River
FairMatanuska-Susitna Borough, Alaska · Mile Point 69.3 · Structure no. 0254
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 1,072 ft
- 5 main spans
- Daily traffic
- 1,650
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Parks Highway over Susitna River is a steel continuous stringer/multi-beam or girder carrying Parks Highway over Susitna River in Matanuska-Susitna Borough, Alaska. It was built in 1965, so it is 60 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 1,650 vehicles a day, roughly 6% of them trucks, projected to reach 2,990 by 2039. The structure is 1,072 ft (326.7 m) long and 34 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Parks Highway over Susitna River built?
It was built in 1965, making it 60 years old in 2025.
What condition is Parks Highway over Susitna 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 June 2024.
How much traffic does Parks Highway over Susitna River carry?
About 1,650 vehicles per day (2020 count), of which roughly 6% are trucks.
How long is Parks Highway over Susitna River?
The structure is 1,072 ft (326.7 m) long with a longest span of 250 ft (76.2 m) and a deck 34 ft wide.
Who owns Parks Highway over Susitna River?
It is owned by the State Highway Agency.