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<br />• <br />• <br />HW/D ratio of 1.5, the culvert capacity is still 14 cfs each or 28 cfs total, which is still <br />significantly more than the 22.9 cfs needed. <br />To allow for additional employee parking northeast of the dry trailer, the collection ditch in this <br />area (Collection Ditch C3) has been placed in an 18 inch CMP as shown on the As Built Map. <br />The drainage area is small enough that this culvert is more than sufficient. <br />Whirlwind Portal Area As Built Report <br />4