Abstract: A portable tire washing apparatus is mounted on a towable trailer bed or on a platform and has drivable rollers for rotating truck tires while they are sprayed by jets of water. Additional roller assemblies or bumpers are provided to prevent sideway movement of the tires. The platform-mounted apparatus may be installed on level ground or in a depression dug in the ground.

Abstract: An in-the-ground truck tire washing appartaus having steel grates on which the truck rides. The grates are mounted above the bottom of a concrete trough and are hinged so that the trough can be opened to remove accumulated sediment from the bottom thereof. The grates cause flexing of the tire to enhance the cleansing motion of water which is above the level of the top surfaces of the grates. The top edges of the grates may be smooth or serrated. The serrated grates dislodge mud and dirt embedded in the treads of the tires. In a portable embodiment of the invention, a tire washing apparatus is mounted on a trailer bed and has driven rollers for rotating the truck tires while they are sprayed by jets of water. Additional roller assemblies are provided to prevent sideway movement of the tires.