IRR BIA RTE N15 over Black Canyon Wash
PoorNavajo County, Arizona · 3MI West of Bitahochee Az · Structure no. 00000000000N682
- Built
- 1986
- 39 years old
- Condition
- Poor
- inspected March 2023
- Type
- Culvert
- Steel
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 2,051
- 2023 count
- Owner
- Federal
- Bureau of Indian Affairs
About this bridge
IRR BIA RTE N15 over Black Canyon Wash is a steel culvert carrying IRR BIA RTE N15 over Black Canyon Wash in Navajo County, Arizona. It was built in 1986, so it is 39 years old, younger than the Arizona average of 47.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 2,051 vehicles a day, roughly 10% of them trucks, projected to reach 2,400 by 2043. The structure is 25 ft (7.5 m) long and 123 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Culvert | 2 Critical | Advanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR BIA RTE N15 over Black Canyon Wash built?
It was built in 1986, making it 39 years old in 2025.
What condition is IRR BIA RTE N15 over Black Canyon Wash in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.
How much traffic does IRR BIA RTE N15 over Black Canyon Wash carry?
About 2,051 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is IRR BIA RTE N15 over Black Canyon Wash?
The structure is 25 ft (7.5 m) long with a longest span of 10 ft (3 m) and a deck 123 ft wide.
Who owns IRR BIA RTE N15 over Black Canyon Wash?
It is owned by the Bureau of Indian Affairs.