Richardson Highway over Boulder Creek
GoodCounty 066, Alaska · Mile Point 55.5 · Structure no. 4117
- Built
- 1974
- 51 years old
- Condition
- Good
- inspected August 2023
- Type
- Culvert
- Steel
- Length
- 21 ft
- 1 main span
- Daily traffic
- 440
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Richardson Highway over Boulder Creek is a steel culvert carrying Richardson Highway over Boulder Creek in County 066, Alaska. It was built in 1974, so it is 51 years old, older 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 440 vehicles a day, roughly 31% of them trucks, projected to reach 670 by 2039. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 123.7 mi (199 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Richardson Highway over Boulder Creek built?
It was built in 1974, making it 51 years old in 2025.
What condition is Richardson Highway over Boulder Creek 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 August 2023.
How much traffic does Richardson Highway over Boulder Creek carry?
About 440 vehicles per day (2020 count), of which roughly 31% are trucks.
How long is Richardson Highway over Boulder Creek?
The structure is 21 ft (6.4 m) long with a longest span of 13 ft (4.1 m).
Who owns Richardson Highway over Boulder Creek?
It is owned by the State Highway Agency.