N.J. Admin. Code § 7:14A-23.8 - Manholes

(a) Manholes shall be provided at the ends of each sewer line and at intersections and at all changes in grade, size or alignment.

(b) Distances between manholes shall not exceed 400 feet for sewers 18 inches or less in diameter and 500 feet for sewers greater than 18 inches in diameter.

(c) A drop pipe shall be provided for sewers entering manholes above the manhole invert whenever the difference in elevation is two feet or more.

(d) No manholes or connections to a sanitary sewer system are permitted within 100 feet of a public water supply well or a below-grade reservoir.

(e) Adequate provisions shall be made for ventilation.

(f) Watertight manhole covers are required for all street elevations less than 10 feet above the North American Vertical Datum of 1988 and/or wherever the top of a manhole may be flooded by street runoff or high water. These manholes shall be properly protected, of watertight construction, and shall be inspected for adequacy after installation.

(g) The minimum diameter of manholes is 48 inches; larger diameters are preferable for large diameter sewers. A minimum access diameter of 22 inches shall be provided.

Notes

N.J. Admin. Code § 7:14A-23.8

Amended by R.1997 d.107, effective 5/5/1997.
See: 28 New Jersey Register 380(a), 28 New Jersey Register 2779(a), 28 New Jersey Register 3494(a), 28 New Jersey Register 3858(a), 28 New Jersey Register 4697(a), 28 New Jersey Register 5028(a), 29 New Jersey Register 1704(a).
In (f), substituted "and/or wherever" for "and wherever" and "inspected for adequacy" for "tested for watertightness".