Richardson Highway over Robe River
FairCounty 063, Alaska · Mile Point 6.6 · Structure no. 4082
- Built
- 1980
- 45 years old
- Condition
- Fair
- inspected August 2023
- Type
- Culvert
- Steel
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 1,990
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Richardson Highway over Robe River is a steel culvert carrying Richardson Highway over Robe River in County 063, Alaska. It was built in 1980, so it is 45 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.
It carries about 1,990 vehicles a day, roughly 14% of them trucks, projected to reach 2,360 by 2039. The structure is 26 ft (7.9 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 | 8 Very Good | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Richardson Highway over Robe River built?
It was built in 1980, making it 45 years old in 2025.
What condition is Richardson Highway over Robe 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 Richardson Highway over Robe River carry?
About 1,990 vehicles per day (2020 count), of which roughly 14% are trucks.
How long is Richardson Highway over Robe River?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).
Who owns Richardson Highway over Robe River?
It is owned by the State Highway Agency.