Civil Engineering - Waste Water Engineering - Discussion

What about deep manhole?

It is >1.5m.

1) Shallow manholes: These are 0.7 to 0.9 m depth, constructed at the start of the branch sewer or at a place not subjected to heavy traffic conditions. These are provided with light cover at top and called inspection chamber

2) Normal manholes:: These manholes are 1.5 m deep with dimensions 1.0 m x 1.0 m square or rectangular with 1.2 m x 0.9 m .These are provided with heavy cover at its top to support the anticipated traffic load.

3) Deep Manholes: The depth of these manholes is more than 1.5 m. The section of such manhole is not uniform throughout. The size in the upper portion is reduced by providing an offset. Steps are provided in such manholes for descending into the manhole. These are provided with heavy cover at its top to support the traffic load.

Thanks @Har.

Thanks for the explanation.

Thanks @Har.

Thanks for the answer @Har.

Thank you @Har.

Thanks for explaining @Har.

Nice explanation. Thanks.