Hydroplaning — Louisiana Permit Test

Partial hydroplaning starts at about 35 mph.

Above this speed the tires can't push water away fast enough, so they start to ride up on it.

Partial hydroplaning starts at about 35 miles per hour,

At 55 mph the tires may lose all contact with the pavement in heavy rain.

With no grip at all, you can't brake, speed up or turn, so speed on a flooded road is the danger.

Partial hydroplaning starts at about 35 miles per hour, and increases with speed until (at 55 M.P.H.) the tires may lose all contact with the pavement.

When your tires lose contact with the road, you cannot brake, accelerate or turn.

Your car is riding on water like a water ski, and the tires have nothing to push against.

When this happens, you lose traction, and you cannot brake, accelerate or turn.

To recover from hydroplaning, keep looking and steering where you want to go while easing off the gas; avoid the brakes.

Letting the car slow on its own lets the tires drop back onto the road. Braking could send you spinning.

To recover, keep looking and steering where you want to go as you ease office the gas pedal.

Good tire tread and tires inflated to the right pressure help prevent hydroplaning.

Deep grooves give the water a path out from under the tire, so the rubber stays on the road.

Have tires inflated to recommended air pressure.

If you hear a sloshing sound from the tires, especially when changing direction, slow down.

That sound means the tires are pushing through a lot of water and may be close to riding on top of it.

If you hear a sloshing sound from the tires, especially when changing directions, slow down.

At about what speed does partial hydroplaning start?

35 mph. Above this speed the tires can't push water away fast enough, so they start to ride up on it. Class D & E Driver's Guide, p.74: “Partial hydroplaning starts at about 35 miles per hour,”