Deep Interceptor Sewer Project - Construction, Inspection, etc.
Deep Interceptor Sewer Project - Construction, Inspection, etc.
(OP)
Our project includes an extension of an interceptor sanitary sewer. Pipe sizes range from 21-inch to 8-inch ID. The depth will vary between 10-feet and 34-feet, with a majority of the project over 20-feet. I assume much of this will be open cut excavation (with double stacked trench boxes), however there will also be borings (bore & jack, steel casing pipe) at a few road crossings. I am considering the use of PVC pipe for the entire project. Backfiling and compaction will be a major task (clay soils). Pipe and manholes will be televised, however only the pipe will be pressure tested.
If anyone has experienced a similar project I would appreciate any comments or suggestions, including:
Inspection of construction - how does the inspector see anything at the bottom of the deep excavation (such as placement and thickness of select bedding/cover material)?
Any problems with large diameter, deep, PVC pipe?
Should manholes be tested? Pressure or vaccuum tested?
Anything else to watch-out for?
All comments appreciated!
If anyone has experienced a similar project I would appreciate any comments or suggestions, including:
Inspection of construction - how does the inspector see anything at the bottom of the deep excavation (such as placement and thickness of select bedding/cover material)?
Any problems with large diameter, deep, PVC pipe?
Should manholes be tested? Pressure or vaccuum tested?
Anything else to watch-out for?
All comments appreciated!





RE: Deep Interceptor Sewer Project - Construction, Inspection, etc.
RE: Deep Interceptor Sewer Project - Construction, Inspection, etc.
21 inch is not that large of diameter, not sure why RCP would be necessary. there are other types of PE pipe that might be worth looking at besides lined RCP.
RE: Deep Interceptor Sewer Project - Construction, Inspection, etc.
RE: Deep Interceptor Sewer Project - Construction, Inspection, etc.
RE: Deep Interceptor Sewer Project - Construction, Inspection, etc.
RE: Deep Interceptor Sewer Project - Construction, Inspection, etc.
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: Deep Interceptor Sewer Project - Construction, Inspection, etc.