Parks Highway over Byers Creek
FairMatanuska-Susitna Borough, Alaska · Mile Point 109.5 · Structure no. 0257
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 137 ft
- 3 main spans
- Daily traffic
- 1,120
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Parks Highway over Byers Creek is a steel stringer/multi-beam or girder carrying Parks Highway over Byers Creek in Matanuska-Susitna Borough, Alaska. It was built in 1970, so it is 55 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 1,120 vehicles a day, roughly 19% of them trucks, projected to reach 1,390 by 2039. The structure is 137 ft (41.7 m) long and 43 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Parks Highway over Byers Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is Parks Highway over Byers Creek 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 Byers Creek carry?
About 1,120 vehicles per day (2020 count), of which roughly 19% are trucks.
How long is Parks Highway over Byers Creek?
The structure is 137 ft (41.7 m) long with a longest span of 45 ft (13.7 m) and a deck 43 ft wide.
Who owns Parks Highway over Byers Creek?
It is owned by the State Highway Agency.