Black Rock RD over I 15; NB
GoodMohave County, Arizona · 2.1 MI SW Utah State Line · Structure no. 01115
- Built
- 1965
- 60 years old
- Condition
- Good
- inspected December 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 135 ft
- 3 main spans
- Daily traffic
- 100
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Black Rock RD over I 15; NB is a concrete continuous tee beam carrying Black Rock RD over I 15; NB in Mohave County, Arizona. It was built in 1965, so it is 60 years old, older than the Arizona average of 47.8 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 110 by 2042. The structure is 135 ft (41.1 m) long and 31 ft wide. If it were closed, the detour would be 24.9 mi (40 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Black Rock RD over I 15; NB built?
It was built in 1965, making it 60 years old in 2025.
What condition is Black Rock RD over I 15; NB 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 December 2024.
How much traffic does Black Rock RD over I 15; NB carry?
About 100 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is Black Rock RD over I 15; NB?
The structure is 135 ft (41.1 m) long with a longest span of 47 ft (14.3 m) and a deck 31 ft wide.
Who owns Black Rock RD over I 15; NB?
It is owned by the State Highway Agency.