Irr:tanana Road over Boulder Creek
GoodYukon-Koyukuk Census Area, Alaska · Mile Point 15.5 · Structure no. 2297
- Built
- 2016
- 9 years old
- Condition
- Good
- inspected August 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 105 ft
- 1 main span
- Daily traffic
- 46
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
Irr:tanana Road over Boulder Creek is a prestressed concrete tee beam carrying Irr:tanana Road over Boulder Creek in Yukon-Koyukuk Census Area, Alaska. It was built in 2016, so it is 9 years old, younger 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 46 vehicles a day, roughly 1% of them trucks, projected to reach 100 by 2035. The structure is 105 ft (32 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
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Irr:tanana Road over Boulder Creek built?
It was built in 2016, making it 9 years old in 2025.
What condition is Irr:tanana Road 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 2024.
How much traffic does Irr:tanana Road over Boulder Creek carry?
About 46 vehicles per day (2018 count), of which roughly 1% are trucks.
How long is Irr:tanana Road over Boulder Creek?
The structure is 105 ft (32 m) long with a longest span of 102 ft (31.1 m) and a deck 31 ft wide.
Who owns Irr:tanana Road over Boulder Creek?
It is owned by the State Highway Agency.