Flooded washes — Arizona Permit Test

Flooded washes on the Arizona permit test — 6 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Heavy rain often causes flash floods in Arizona washes; do not cross flooded washes.

Moving water can stall your engine, hide holes in the road and carry your car downstream with you in it.

Heavy rain frequently causes “flash floods” in Arizona washes. Do not cross flooded washes.

Arizona Driver License Manual and Customer Service Guide, p.56

Water can stall your engine, hide potholes and carry your vehicle downstream.

Water that looks calm can hide a washed-out road bed and has enough force to float a car away.

Water can stall your engine, hide potholes and can carry your vehicle downstream.

Arizona Driver License Manual and Customer Service Guide, p.56

Two vehicles should not meet in deep water; one should go entirely through before the other starts from the other direction.

Two cars passing in deep water push waves at each other, and a wave into the engine can stall it in the middle.

Two vehicles should not meet in deep water; one should go entirely through before another starts from the other direction.

Arizona Driver License Manual and Customer Service Guide, p.56

Drive through water at a slow and steady speed.

Going fast throws up a wave that can flood the engine; stopping and starting lets water in too.

Driving through water must be done at a slow and steady speed.

Arizona Driver License Manual and Customer Service Guide, p.56

After driving through water, dry wet brakes by accelerating slowly while gently holding down the brake pedal.

Wet brakes may grab or pull to one side, or barely work, just when you next need to stop.

Dry them by accelerating slowly while gently holding down the brake pedal.

Arizona Driver License Manual and Customer Service Guide, p.56

You may be charged for emergency response expenses if you or your vehicle must be removed from a flooded road.

Rescuers who pull a car out of a flooded road bill the driver who put it there, on top of the risk to your life.

You may be charged for emergency response expenses if you or your vehicle needs to be removed from a flooded road.

Arizona Driver License Manual and Customer Service Guide, p.56

On the test

What should you do when you reach a flooded wash?

Turn back; do not cross it. Moving water can stall your engine, hide holes in the road and carry your car downstream with you in it. Arizona Driver License Manual and Customer Service Guide, p.56: “Heavy rain frequently causes “flash floods” in Arizona washes. Do not cross flooded washes.”

How this works

Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.

You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.

Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.

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Where these come from

Every rule here is checked against Arizona Driver License Manual and Customer Service Guide, published by the Arizona Department of Transportation, and against the state code itself. Last checked 2026-09-28.