Parks Highway over Sawmill Creek
FairMatanuska-Susitna Borough, Alaska · Mile Point 109.6 · Structure no. 4140
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected June 2024
- Type
- Culvert
- Steel
- Length
- 20 ft
- 2 main spans
- Daily traffic
- 1,650
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Parks Highway over Sawmill Creek is a steel culvert carrying Parks Highway over Sawmill Creek in Matanuska-Susitna Borough, Alaska. It was built in 1966, so it is 59 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 5 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 20 ft (6.1 m) long. 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Parks Highway over Sawmill Creek built?
It was built in 1966, making it 59 years old in 2025.
What condition is Parks Highway over Sawmill 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 Sawmill Creek carry?
About 1,650 vehicles per day (2020 count), of which roughly 6% are trucks.
How long is Parks Highway over Sawmill Creek?
The structure is 20 ft (6.1 m) long with a longest span of 8 ft (2.4 m).
Who owns Parks Highway over Sawmill Creek?
It is owned by the State Highway Agency.