Edgerton/Mccarthy over Tonsina River
FairCounty 066, Alaska · Mile Point 19.2 · Structure no. 0288
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected August 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 351 ft
- 3 main spans
- Daily traffic
- 440
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Edgerton/Mccarthy over Tonsina River is a prestressed concrete tee beam carrying Edgerton/Mccarthy over Tonsina River in County 066, Alaska. It was built in 1976, so it is 49 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 440 vehicles a day, roughly 11% of them trucks, projected to reach 520 by 2039. The structure is 351 ft (107 m) long and 31 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Edgerton/Mccarthy over Tonsina River built?
It was built in 1976, making it 49 years old in 2025.
What condition is Edgerton/Mccarthy over Tonsina 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 August 2023.
How much traffic does Edgerton/Mccarthy over Tonsina River carry?
About 440 vehicles per day (2020 count), of which roughly 11% are trucks.
How long is Edgerton/Mccarthy over Tonsina River?
The structure is 351 ft (107 m) long with a longest span of 117 ft (35.7 m) and a deck 31 ft wide.
Who owns Edgerton/Mccarthy over Tonsina River?
It is owned by the State Highway Agency.