Denali Highway over Maclaren River
FairMatanuska-Susitna Borough, Alaska · Mile Point 41.9 · Structure no. 0685
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected July 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 362 ft
- 3 main spans
- Daily traffic
- 50
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Denali Highway over Maclaren River is a prestressed concrete tee beam carrying Denali Highway over Maclaren River in Matanuska-Susitna Borough, Alaska. It was built in 1986, so it is 39 years old, older 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 50 vehicles a day, roughly 21% of them trucks, projected to reach 60 by 2039. The structure is 362 ft (110.3 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Denali Highway over Maclaren River built?
It was built in 1986, making it 39 years old in 2025.
What condition is Denali Highway over Maclaren River 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 July 2023.
How much traffic does Denali Highway over Maclaren River carry?
About 50 vehicles per day (2020 count), of which roughly 21% are trucks.
How long is Denali Highway over Maclaren River?
The structure is 362 ft (110.3 m) long with a longest span of 119 ft (36.2 m) and a deck 29 ft wide.
Who owns Denali Highway over Maclaren River?
It is owned by the State Highway Agency.