of its discreet positioning within a landscape, drainage is a vital
part of a good landscape foundation. The longevity of the landscape
itself is ensured when this essential component are incorporated,
helping to provide a healthier living environment for you and your
outdoor space. Common problems such as standing water after heavy
rains, mold and mosquitoes are significantly reduced, if not
eliminated when a good drainage system is in place.
Good drainage in the landscape is as important as proper
irrigation. Too much water in landscaped areas can result in
numerous plant diseases and can even kill sensitive plants like
expensive evergreens. Overly wet turf areas are prone to soil
compaction and scarring from footprints and mowing equipment. In
addition, drainage around the perimeter of the house is important
to prevent leaks and moisture intrusion into building foundations
Drainage systems can use a variety of techniques to remove unwanted
water from an area, whether on a residential, commercial, or golf
Surface Drainage Systems
Surface drainage systems aim to collect excess surface water from
hardscaping, planter beds, window wells, and specific turf areas
where water tends to collect. Water enters a surface drainage
system through catch basins, which have a sump area that collects
debris to prevent clogging of the piping.
Catch basins and the drainage grates
that go on top of them are available in a variety of sizes and
styles depending upon the application.
Round drainage grates are used in turf
areas. Square drainage grates are used for hardscaped areas;
walkways, driveways, parking lots, around swimming pools, etc.
Atrium drainage grates have a raised
"domelike" design to prevent debris from building on top of the
grate openings. These are used in window wells, planter areas, and
other applications where bark mulch, stone, or landscape debris
would tend to cover drain openings.
The size of the catch basin should be
sized to the anticipated volume of water to be collected. In
addition the pipe carrying the water from the catch basin should be
properly sized to carry water from all catch basins to which it is
connected. Always size a little larger than necessary for safety.
The additional material cost is minimal and mistakes can be costly.
If the drain will be exposed to weight or traffic from above, you
may need to consider a concrete catch basin and/or a metal drainage
grate. The drainage line connecting the catch basins should be of a
solid (non-perforated) design. Both solid PVC and corrugated
plastic piping are acceptable.
Another form of the surface drainage
system is the channel drain. Channel drains are frequently used in
paved areas to collect water. They are essentially an extended
trough or catch basin covered by a long grate. Typical channel
drains can be 10’ long and 4" wide. Channel drains are also
connected together with solid piping.
The most frequently used form of
sub-surface drainage is the French Drain or underground collection
drain. This drain collects underground water from saturated soils
and carries it to a desired destination. Sub-surface drains help
carry water away from low spots and can protect drainage sensitive
plant material. For information on how to construct a French Drain
from standard corrugated perforated drain pipe, see the section
entitled Constructing a French Drain.
Drain lines can be used to carry roof water from downspouts away
from buildings and planting beds. Downspout drain lines can be
especially helpful if the natural grade around a building does not
cause water to move away from the foundation. Downspouts can be
connected to solid PVC or corrugated plastic drain pipes to carry
roof water away from the building.
If you are having drainage issues please give us a call and we'll
be glad to come out to take a look at the problem, and find a
viable solution. Don't hesitate and give us a call today at
or fill out our online
for an appointment. We service the entire Houston
metropolitan area as well as San Antonio, Austin and Dallas. Become
our Facebook Fan
or share this page with your
facebook friends. Share