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Drainage Water
Found 2 free book(s)How To Calculate Drainage - ndspro.com
www.ndspro.comthe water is draining is a separate drainage zone. The “X” in the picture on the left represents a low spot in the backyard. Now You Try: Draw drainage arrows on your sketch. We can now determine the drainage zones. Each area where the arrows point to is a separate drainage zone. Multiple parts of your property may drain to a single ...
CHAPTER 4 STORM DRAINAGE SYSTEMS - Charlotte, North …
charlottenc.govwith water entering from one direction. The “sag” condition exists when the inlet is located at a low point and water enters from both directions. 4.1.3 Criteria . The following criteria shall be used for drainage system design. • Maximum spread of 6 feet in a travel lane based on a rainfall intensity of 4 inches/hour.