Design Process
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Web Soil Survey - Home
Web Soil Survey (WSS) provides soil data and information produced by the National Cooperative Soil Survey. It is operated by the USDA Natural Resources Conservation Service (NRCS) and provides access to the largest natural resource information system in the world. NRCS has soil maps and data available online for more than 95 percent of the nation’s counties and anticipates having 100 percent in the near future. The site is updated and maintained online as the single authoritative source of soil survey information.
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How to Measure Slope for lawn sprinkler and irrigation systems.
A landscape with a slope of over 10% will require special planning to avoid unwanted runoff. A way around this is to create flat terraces held in place by retaining walls. Low precipitation devices set at the correct angles will be needed to irrigate a sloped area that has not had any structural changes. Attach a string to either a stake or a screwdriver. At the highest point of ground plant the stake with the string (or screwdriver) into the soil. If you have an assistant they can walk to the bottom of the slope with the remainder of the string.
