IRR BIA RTE 18 over Cathedral Falls Creek
GoodPrince of Wales-Hyder Census Area, Alaska · 3.5KM Along Fs 6030 · Structure no. 0000E09229T0130
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 120 ft
- 1 main span
- Daily traffic
- 5
- 2019 count
- Owner
- Tribal
- Indian Tribal Government
About this bridge
IRR BIA RTE 18 over Cathedral Falls Creek is a steel stringer/multi-beam or girder carrying IRR BIA RTE 18 over Cathedral Falls Creek in Prince of Wales-Hyder Census Area, 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 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 5 vehicles a day, projected to reach 10 by 2039. The structure is 120 ft (36.6 m) long and 18 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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE 18 over Cathedral Falls Creek built?
It was built in 1980, making it 45 years old in 2025.
What condition is IRR BIA RTE 18 over Cathedral Falls 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 September 2024.
How much traffic does IRR BIA RTE 18 over Cathedral Falls Creek carry?
About 5 vehicles per day (2019 count).
How long is IRR BIA RTE 18 over Cathedral Falls Creek?
The structure is 120 ft (36.6 m) long with a longest span of 110 ft (33.5 m) and a deck 18 ft wide.
Who owns IRR BIA RTE 18 over Cathedral Falls Creek?
It is owned by the Indian Tribal Government.