US 93 SB over Big Wash
FairMohave County, Arizona · 15.6 MI N of JCT SR 68 · Structure no. 01579
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected October 2023
- Type
- Slab
- Concrete Continuous
- Length
- 164 ft
- 5 main spans
- Daily traffic
- 8,004
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
US 93 SB over Big Wash is a concrete continuous slab carrying US 93 SB over Big Wash in Mohave County, Arizona. It was built in 1972, so it is 53 years old, older than the Arizona average of 47.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 8,004 vehicles a day, roughly 26% of them trucks, projected to reach 8,014 by 2042. The structure is 164 ft (50 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 93 SB over Big Wash built?
It was built in 1972, making it 53 years old in 2025.
What condition is US 93 SB over Big Wash in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.
How much traffic does US 93 SB over Big Wash carry?
About 8,004 vehicles per day (2022 count), of which roughly 26% are trucks.
How long is US 93 SB over Big Wash?
The structure is 164 ft (50 m) long with a longest span of 35 ft (10.7 m) and a deck 47 ft wide.
Who owns US 93 SB over Big Wash?
It is owned by the State Highway Agency.