Palmer-Wasill Ext over Cottonwood Overhead
FairMatanuska-Susitna Borough, Alaska · Mile Point 10.2 · Structure no. 1897
- Built
- 2002
- 23 years old
- Condition
- Fair
- inspected June 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 92 ft
- 1 main span
- Daily traffic
- 14,000
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Palmer-Wasill Ext over Cottonwood Overhead is a prestressed concrete tee beam carrying Palmer-Wasill Ext over Cottonwood Overhead in Matanuska-Susitna Borough, Alaska. It was built in 2002, so it is 23 years old, younger 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 14,000 vehicles a day, roughly 5% of them trucks, projected to reach 16,300 by 2039. The structure is 92 ft (28 m) long and 95 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Substructure | 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 Palmer-Wasill Ext over Cottonwood Overhead built?
It was built in 2002, making it 23 years old in 2025.
What condition is Palmer-Wasill Ext over Cottonwood Overhead 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 Palmer-Wasill Ext over Cottonwood Overhead carry?
About 14,000 vehicles per day (2020 count), of which roughly 5% are trucks.
How long is Palmer-Wasill Ext over Cottonwood Overhead?
The structure is 92 ft (28 m) long with a longest span of 87 ft (26.6 m) and a deck 95 ft wide.
Who owns Palmer-Wasill Ext over Cottonwood Overhead?
It is owned by the State Highway Agency.