Duluth UDC Table 9-B

Table 9-B: Maximum Pipe Invert Depth (feet) Pipe Diameter (inches) Maximum Pipe Invert Depth (feet) 4 5 6 7 8 9 10 11 12 13 14 15 16 15 20 20 20 20 20 25 25 30 30 30 35 35 40 18 20 20 20 20 20 25 25 30 30 30 35 35 40 24 20 20 20 20 20 25 25 30 30 30 35 35 40 30 20 20 20 20 25 25 25 30 30 35 35 35 40 36 20 20 20 20 25 25 25 30 30 35 35 35 40 42 NA 20 20 20 25 25 30 30 30 35 35 40 40 48 NA 20 20 20 25 25 30 30 30 35 35 40 40 54 NA NA 20 25 25 25 30 30 35 35 35 40 40 60 NA NA 20 25 25 25 30 30 35 35 35 40 40 66 NA NA NA 25 25 30 30 30 35 35 40 40 40 72 NA NA NA 25 25 30 30 30 35 35 40 40 40 3. Permanent sanitary sewer easements shall be no less than 20 feet in width when no other parallel utilities are located therein. When warranted, temporary construction easement widths shall be determined by the Gwinnett County Department of Water Resources 4. A common easement for sanitary sewer and drainage purposes may be allowed if the pipes are parallel and at least 10 feet are provided between pipes (on center). The easement width shall be equal to the width shown in Table 9-B plus the width distance separating the pipes (minimum of 10 feet). 261 | P a g e Article Nine. Project Design and Construction Standards 5. All drainage, sewer, access or other easements which were required to be cleared shall be fine graded and grassed within 10 days of completing construction work. The use of sediment control measures may be required to protect the area until a comprehensive vegetative cover is obtained. 915.05. Right-of-Way Protection 1. Rights-of-way Occupancy Registration. a. Each utility who occupies, uses or has facilities in the rights-of-way at the time of passage of the