Glenn Highway over Granite Creek
GoodMatanuska-Susitna Borough, Alaska · Mile Point 55.0 · Structure no. 0543
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected July 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 212 ft
- 2 main spans
- Daily traffic
- 1,580
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Glenn Highway over Granite Creek is a prestressed concrete tee beam carrying Glenn Highway over Granite Creek in Matanuska-Susitna Borough, Alaska. It was built in 2001, so it is 24 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 1,580 vehicles a day, roughly 15% of them trucks, projected to reach 2,260 by 2039. The structure is 212 ft (64.6 m) long and 38 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 | 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 Glenn Highway over Granite Creek built?
It was built in 2001, making it 24 years old in 2025.
What condition is Glenn Highway over Granite 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 Granite Creek carry?
About 1,580 vehicles per day (2020 count), of which roughly 15% are trucks.
How long is Glenn Highway over Granite Creek?
The structure is 212 ft (64.6 m) long with a longest span of 70 ft (21.3 m) and a deck 38 ft wide.
Who owns Glenn Highway over Granite Creek?
It is owned by the State Highway Agency.