Glenn Highway over Anc-Palmer Flyover Ramp
GoodMatanuska-Susitna Borough, Alaska · Mile Point 33.6 · Structure no. 2121
- Built
- 2004
- 21 years old
- Condition
- Good
- inspected July 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 257 ft
- 2 main spans
- Daily traffic
- 1,245
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Glenn Highway over Anc-Palmer Flyover Ramp is a prestressed concrete tee beam carrying Glenn Highway over Anc-Palmer Flyover Ramp in Matanuska-Susitna Borough, Alaska. It was built in 2004, so it is 21 years old, younger than the Alaska average of 35.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,245 vehicles a day, roughly 8% of them trucks, projected to reach 1,450 by 2039. The structure is 257 ft (78.2 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Glenn Highway over Anc-Palmer Flyover Ramp built?
It was built in 2004, making it 21 years old in 2025.
What condition is Glenn Highway over Anc-Palmer Flyover Ramp in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.
How much traffic does Glenn Highway over Anc-Palmer Flyover Ramp carry?
About 1,245 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is Glenn Highway over Anc-Palmer Flyover Ramp?
The structure is 257 ft (78.2 m) long with a longest span of 130 ft (39.5 m) and a deck 38 ft wide.
Who owns Glenn Highway over Anc-Palmer Flyover Ramp?
It is owned by the State Highway Agency.