The in-and-out elevations of the incoming and outgoing sewers shall be shown on the plans, and, unless authorized by the Engineer, the following shall apply.
(A) Sewers of same diameter. Where two or more main sewers of the same diameter intersect, the difference in invert elevations of the incoming and outgoing sewers shall be a minimum of 0.10 feet. For flow through manholes, maintain grade.
(B) Sewers of different diameters. Where two or more main sewers of different diameters intersect, the incoming and outgoing sewers shall be so related that the inside tops (crown) of the sewers are at the same elevation.
(Ord. 2019-02, passed 4-25-2019)