Loose Gravel Sign: Meaning and What to Do
The yellow diamond reading LOOSE GRAVEL warns that the road surface ahead is covered with loose stone, often after a chip-seal treatment or on an unpaved stretch. Traction drops sharply, stopping distances grow, and tires throw stones at the vehicles around you.
Loose Gravel Sign
Loose gravel acts like marbles under a tire. Braking hard locks the wheels, steering sharply slides the front end, and accelerating spins the drive wheels. For motorcyclists it is one of the most dangerous surface conditions a sign can warn of.
What to do when you see the loose gravel sign
Slow down before you reach the gravel, not on it. Brake and steer gently, avoid sudden changes of speed or direction, and leave extra room behind the vehicle ahead to avoid thrown stones and to have room to stop. On a motorcycle, keep the bike upright, ride slowly, and stay off the front brake.
The signs it is confused with
Tests pair it with Slippery When Wet, which warns of low traction from water rather than stone, and with Pavement Ends, which marks the change from paved to gravel road. LOOSE GRAVEL can apply on a paved road that has been chip-sealed.
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Choose your stateQuestions about the loose gravel sign
What does the loose gravel sign mean?
The surface ahead is loose stone. Traction is poor, stopping takes longer, and tires throw gravel. Slow down before you reach it.
How should I drive on loose gravel?
Slowly and smoothly. No hard braking, no sharp steering, no sudden acceleration, and extra following distance to avoid thrown stones.
Why is it especially dangerous for motorcycles?
A motorcycle depends on tire grip to stay upright. Gravel rolls under the tires, and a locked front wheel or a lean into a turn can drop the bike instantly.
Where does loose gravel come from on a paved road?
Chip-seal resurfacing spreads stone over fresh tar and leaves loose chips for days. The sign stays up until the excess is swept.
How does this sign appear on the written test?
In the road-conditions warning group and in motorcycle-manual questions about riding on poor surfaces.