Transcription of C-5. Permeable Pavement - NC
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C-5. Permeable Pavement - NC
NCDEQ Stormwater Design Manual _____ C-5. Permeable Pavement 1 Revised: 4-6-2017 C-5. Permeable Pavement Design Objective Permeable Pavement captures stormwater through voids in the Pavement surface and filters water through an underlying aggregate reservoir. The reservoir typically allows the water to infiltrate into the soil subgrade. The reservoir can also be designed to detain and release the water to a surface conveyance system if the underlying soil is not suitable for infiltration. The purpose of Permeable Pavement is to control the quality and quantity of stormwater runoff while accommodating pedestrians, parking and possibly traffic (if adequate structural support is provided).
Jun 17, 2004 · PERMEABLE PAVEMENT MDC 4: SOIL SUBGRADE SLOPE PERMEABLE PAVEMENT MDC 4: SOIL SUBGRADE SLOPE The soil subgrade surface shall have a slope of less than or equal to two percent. Whether is the pavement is designed for infiltration or detention, it is crucial that the subgrade be almost flat, i.e., less than or equal to a 2% slope.
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