This blog is about field drainage in the soccer fields. With the fields being relatively flat (5% grade), we are installing a drainage system to move surface water off the fields in the event of rain. Basically its a 4 inch perforated drain pipe at a fairly shallow depth (12" bottom of trench) backfilled with a pea gravel. The pipe lines are on a 45 degree angle across the field about 20' apart.
The trench grades need to be checked to ensure proper slope for water to flow out
4" perf pipe
Backfilled trench
Installing "trunk line," the lateral lines connect to this pipe which carries it out of field
Close up of pea gravel
*Note* The slope of the soccer fields are 0.5% not 5%. Also the pea gravel in the trenches is being filled all the way to the surface. With the high silt and clay content of the native topsoil, covering the trenches with topsoil will bind the porespace between particles and not allow surface water to infiltrate into drainage system. Some installers will top with a coarse sand but we really liked the size of the pea gravel used and filling the rock all the way to the surface was suggested by Dr. A.J. Powell. Bermudagrass will have no problem filling in over this coarse material. - James
ReplyDeleteinteresting blog. It would be great if you can provide more details about it. Thanks you Soccer Drainages
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