Stormwater drainage design is an integral component of both site and overall stormwater management design. Drainage design for new developments must: strive to maintain compatibility and minimize interference with existing drainage patterns; control flooding of property, structures and roadways for design flood events; and minimize potential environmental impacts on stormwater runoff. Stormwater collection systems must be designed to provide adequate surface drainage while at the same time meeting Knox County stormwater management goals such as water quality, streambank channel protection, habitat protection and groundwater recharge.
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