Lawn Drainage

Several types of Drain Systems are available depending on the problem and area that exists. These include Downspout, Surface (Atrium/Area), 3 sizes of Channel Drains, and a Sub Surface/French Drain. Surface Drains can be located in either lawn areas or within concrete areas. A variety of grates are available from polished brass, to a selection of colors in polyethylene. Concrete basins are available for driveways and streets, and range from 12” to 48” and have Traffic Approved Grates of either Cast Iron or fabricated metal. All piping used is SDR 35, unless specified other, and is available in 4” through 8”. The elevations are determined with a Sight Level. Then a series of calculations are performed to establish the proper and maximum efficiency obtainable. These elevations are marked every ten(10) feet and charted for reference. A minimum drop in elevation to the end of the system of 11/4” per 10 feet is desired. If the existing grade does not permit this, the available drop will be calculated and charted every ten feet. Establishing the precise elevations the pipe should be at, at a given location is essential to, a properly installed drainage system. Without this accuracy, the pipe will not have the maximum output for its size. In other words, you could be charged for a 4” pipe and get the performance of a 2”. Boring is available and all drains can be carried through the curbing at the street, and reconcreted.