Sanitary Manholes

•Belowground sanitary and stormwater sewer piping require access openings by means of a manhole at certain intervals to allow for access, connection points, and change-in-direction points. The manhole is a belowground round or square structure made of precast concrete that allows sewer piping connections near the bottom of the manhole structure. At the street level, an iron access cover (often referred to as a “manhole cover”) is placed to permit access.

Sanitary sewer manhole: This manhole is used on sanitary sewer lines for the conveyance of wastewater. The sanitary sewer manhole is typically 48” in diameter and varies in depth according to the depth of the sanitary sewer piping. At the bottom of
the manhole near the pipe connections of the sewer, a molded channel (also called an “invert”) is formed so that the sewer flow is smooth and unimpeded. Since sanitary sewer can be corrosive, interior liners can be specified to the manhole interior.

- Stormwater manhole: This manhole is used on stormwater sewer lines for the conveyance of rainwater. The storm sewer manhole is generally characterized by a larger size, which is dictated by the sewer pipe connection sizes and orientations. Sizes of storm sewer manholes can range from 48” to 120” in diameter and will vary in depth according the depth of the storm sewer piping.

Features
Dolor Sit Amet

• Overflow protection
  
• Low cost
• Easy installation and maintenance
• Custom designs available