Glenn Highway over Caribou Creek
GoodMatanuska-Susitna Borough, Alaska · Mile Point 98.8 · Structure no. 1179
- Built
- 2004
- 21 years old
- Condition
- Good
- inspected July 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 525 ft
- 4 main spans
- Daily traffic
- 1,160
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Glenn Highway over Caribou Creek is a prestressed concrete tee beam carrying Glenn Highway over Caribou Creek 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 1,160 vehicles a day, roughly 15% of them trucks, projected to reach 1,320 by 2039. The structure is 525 ft (160 m) long and 39 ft wide. If it were closed, the detour would be 123.7 mi (199 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. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Glenn Highway over Caribou Creek built?
It was built in 2004, making it 21 years old in 2025.
What condition is Glenn Highway over Caribou Creek 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 Caribou Creek carry?
About 1,160 vehicles per day (2020 count), of which roughly 15% are trucks.
How long is Glenn Highway over Caribou Creek?
The structure is 525 ft (160 m) long with a longest span of 131 ft (39.9 m) and a deck 39 ft wide.
Who owns Glenn Highway over Caribou Creek?
It is owned by the State Highway Agency.