169.733 WHEEL FLAPS ON TRUCK AND TRAILER.
Subdivision 1. Vehicles generally.
Every truck, truck-tractor, trailer, semitrailer, pole
trailer, and rear-end dump truck, excepting rear-end dump farm trucks, must be provided with
wheel flaps or other suitable protection above and behind the rearmost wheels of the vehicle or
combination of vehicles to prevent, as far as practicable, the wheels from throwing dirt, water, or
other materials on the windshields of following vehicles. The flaps or protectors must be at least
as wide as the tires they are protecting and have a ground clearance of not more than nine inches
from the ground when the vehicle is empty.
Subd. 2. Vehicle with conveyor belt.
For a dump truck or truck with a rigid box fastened
to its frame and having a conveyor belt or chain in the bottom of the vehicle that moves the
cargo to the rear end of the vehicle, the flaps must be mounted as far to the rear of the vehicle as
practicable and have a ground clearance of not more than 18 inches when the vehicle is loaded.
Subd. 3. Bottom-dump vehicle.
In addition to meeting the requirements of subdivision 1, a
bottom-dump cargo vehicle transporting sand, gravel, aggregate, dirt, lime rock, silica, or similar
material must be equipped with a center flap between the wheel flaps, which must have a ground
clearance of six inches or less when the vehicle is fully loaded.
Subd. 4. Alternative requirements.
If the motor vehicle is so designed and constructed that
the above requirements are accomplished by means of body construction or other means of
enclosure, then no protectors or flaps are required.
Subd. 5. Extended flaps.
If the rear wheels are not covered at the top by fenders, body or
other parts of the vehicle, the flap or other protective means must be extended at least to a point
directly above the center of the rearmost axle.
Subd. 6.[Repealed by amendment, 1Sp2005 c 1 art 4 s 35
History: 1951 c 640 s 1; 1953 c 619 s 1; 1976 c 136 s 1; 1978 c 498 s 1; 1990 c 548 s 1;
1998 c 372 art 1 s 7; 1Sp2005 c 1 art 4 s 35