Glenn Highway over Knik River Access U.C.
GoodMatanuska-Susitna Borough, Alaska · Mile Point 29.7 · Structure no. 4032
- Built
- 1993
- 32 years old
- Condition
- Good
- inspected July 2023
- Type
- Culvert
- Steel
- Length
- 60 ft
- 2 main spans
- Daily traffic
- 26,600
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Glenn Highway over Knik River Access U.C. is a steel culvert carrying Glenn Highway over Knik River Access U.C. in Matanuska-Susitna Borough, Alaska. It was built in 1993, so it is 32 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 26,600 vehicles a day, roughly 8% of them trucks, projected to reach 30,800 by 2039. The structure is 60 ft (18.3 m) long. If it were closed, the detour would be 29.8 mi (48 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 |
|---|---|---|
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Glenn Highway over Knik River Access U.C. built?
It was built in 1993, making it 32 years old in 2025.
What condition is Glenn Highway over Knik River Access U.C. 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 Knik River Access U.C. carry?
About 26,600 vehicles per day (2020 count), of which roughly 8% are trucks.
How long is Glenn Highway over Knik River Access U.C.?
The structure is 60 ft (18.3 m) long with a longest span of 25 ft (7.7 m).
Who owns Glenn Highway over Knik River Access U.C.?
It is owned by the State Highway Agency.