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PREPARING AREAS, USE OF GUIDE MARKERS
Every area to be plowed should be inspected before
snowfall for potential hazards. Holes should be repaired,
raised manhole covers leveled or noted and obstructions
noted to prevent damage to the plow mounting or vehicle
undercarriage.
Markers or stakes with reflectors should be in position to
indicate boundaries of areas to be plowed, location of
shut-off valves, catch basins and other hazards. Markers
should be at least three feet above the ground; higher in
areas of deeper snowfall.
The first step in organizing an efficient plan is to prepare a
map or procure a blueprint of the area. Locate and mark
all utilities, outlets, shutoffs, catch basins and possible
emergency equipment that must be reached from outside.
Figure the square footage of each area and the total area.
Especially note areas from which snow will have to be carried,
call “trapped” areas. Although hauling is expensive, it is
necessary where piled snow would limit access. Indicate
clearing priorities on your map.
This may aid you in preparing a priority plan for your
clearance operation.
KEEP SNOW UNDER CONTROL
Deep or heavy, wet snow, because of its increased weight, calls
for more skillful and powerful plowing than light powder snow.
Always plow in low gear and keep plowing.
Heavy snow may
also require clearing a path or area for working room to move
snow to another area. Remember that wet snow weighs about
12 pounds per cubic foot. As it piles up in front of a snow plow
blade, the weight can quickly increase to several tons.
Where packed snow or ice must be plowed, it is sometimes
necessary to lower the cutting blade to rest directly on the road
surface. In that situation, plow in lowest gear for greatest power
to the cutting edge. This method also prevents the plow from
“climbing over” the icy surface.
If plowing very deep snow, 12 inches or more, you may have to
plow with the blade partially raised to shear off successive layers
of snow until a working area is clear. Then work small “bites” into
the edge. The “bite” depth should be inversely proportional to
the snow depth. A rule of thumb: 6-inch snow may be plowed
with the entire blade width; 9-inch snow with 3/4 of the blade
width; and 12-inch snow with only 1/2 of the width. Experience
will show what work can be done without stalling or getting
stuck.
Efficient Snow Clearance Starts with Planning
