Copper River HWY over Copper River Slough
FairClosed to trafficCounty 063, Alaska · Mile Point 40.0 · Structure no. 4123
- Built
- 1977
- 48 years old
- Condition
- Fair
- inspected September 2024
- Type
- Culvert
- Steel
- Length
- 28 ft
- 2 main spans
- Daily traffic
- 65
- 2011 count
- Owner
- State
- State Highway Agency
About this bridge
Copper River HWY over Copper River Slough is a steel culvert carrying Copper River HWY over Copper River Slough in County 063, Alaska. It was built in 1977, so it is 48 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: closed to all traffic.
It carries about 65 vehicles a day, roughly 1% of them trucks, projected to reach 150 by 2030. The structure is 28 ft (8.6 m) long. 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Copper River HWY over Copper River Slough built?
It was built in 1977, making it 48 years old in 2025.
What condition is Copper River HWY over Copper River Slough 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 September 2024.
How much traffic does Copper River HWY over Copper River Slough carry?
About 65 vehicles per day (2011 count), of which roughly 1% are trucks.
How long is Copper River HWY over Copper River Slough?
The structure is 28 ft (8.6 m) long with a longest span of 12 ft (3.8 m).
Who owns Copper River HWY over Copper River Slough?
It is owned by the State Highway Agency.