April 1999

Process Industry PracticesCivil

PIP CVI02720Sewer Details

PURPOSE AND USE OF PROCESS INDUSTRY PRACTICES

In an effort to minimize the cost of process industry facilities, this Practicehas been prepared from the technical requirements in the existing standards ofmajor industrial users, contractors, or standards organizations. By harmonizingthese technical requirements into a single set of Practices, administrative,application, and engineering costs to both the purchaser and the manufacturershould be reduced. While this Practice is expected to incorporate the majority ofrequirements of most users, individual applications may involve requirements thatwill be appended to and take precedence over this Practice. Determinationsconcerning fitness for purpose and particular matters or application of the Practiceto particular project or engineering situations should not be made solely oninformation contained in these materials. The use of trade names from time to timeshould not be viewed as an expression of preference but rather recognized asnormal usage in the trade. Other brands having the same specifications are equallycorrect and may be substituted for those named. All practices or guidelines areintended to be consistent with applicable laws and regulations including OSHArequirements. To the extent these practices or guidelines should conflict withOSHA or other applicable laws or regulations, such laws or regulations must befollowed. Consult an appropriate professional before applying or acting on anymaterial contained in or suggested by the Practice.

©Process Industry Practices (PIP), Construction Industry Institute, TheUniversity of Texas at Austin, 3208 Red River Street, Suite 300, Austin,Texas 78705. PIP member companies may copy this practice for theirinternal use.

Not printed with State funds

April 1999

Process Industry Practices Page 1 of 17

Process Industry PracticesCivil

PIP CVI02720Sewer Details

Table of Contents

1. Introduction ..................................21.1 Purpose ...............................................21.2 Scope...................................................2

2. References....................................22.1 Process Industry Practices (PIP) .........22.2 Industry Codes and Standards ............2

3. Design ...........................................3

Details:Sanitary, Storm or Process Sewer Fabricated

HDPE ManholeSanitary or Storm Sewer Concrete Pipe or

Precast ManholesSanitary Concrete Drop ManholeProcess Sewer, High Density Polyethylene

(HDPE) Manholes

Process Sewer, Concrete Manholes withChemical Resistant Brick Lining

Process Sewer, Concrete Manholes withReinforced Thermosetting Resin (RTP)Liner

Process Sewer, Concrete Manholes withChemical Resistant Coating

Concrete Manhole Tops and BasesManhole Sections and DetailsTypical Manhole Fire and/or Vapor SealPrecast or Cast in Place Rectangular or

Square Storm Water InletPrecast Circular Storm Water Inlet“Catch Basin” Option Sewer Pipe Connection

DetailTerminology for Bedding Details

PIP CVI02720Sewer Details April 1999

Page 2 of 17 Process Industry Practices

1. Introduction

1.1 Purpose

The purpose of this Practice is to provide the designer and installer with standardsewer manholes, catch basins, and bedding details to be used in process industryfacilities.

1.2 Scope

This Practice shows the details for fabrication and installation of typical sewermanholes, catch basins and bedding requirements for underground gravity sewersystems. This Practice is intended to be used in conjunction with PIP CVS02700 andPIP CVE02705.

2. References

Applicable requirements in the latest edition of the following PIP practices, codes andstandards shall be considered an integral part of this Practice. The edition in effect on thedate of contract award shall be used, except as otherwise specified. Short titles will be usedherein when appropriate.

2.1 Process Industry Practices (PIP)

� PIP CVE02705 - Engineering Guide for Double Contained Sewers

– PIP CVS02315 - Excavation and Backfill Specification

– PIP CVS02700 - Underground Gravity Sewers Specification

� PIP STS03001 - Plain and Reinforced Concrete Specification

2.2 Industry Codes and Standards

� American Society of Testing and Materials (ASTM)

� ASTM A48 - Standard Specification for Gray Iron Castings

� ASTM C76 - Standard Specification for Reinforced Concrete Culvert, StormDrain, and Sewer Pipe

� ASTM C443 - Standard Specification for Joints for Circular ConcreteSewer and Culvert Pipe, Using Rubber Gaskets

� ASTM C478 - Standard Specification for Precast Reinforced ConcreteManhole Sections

� ASTM C923 - Standard Specification for Resilient Connectors BetweenReinforced Concrete Manhole Structures, Pipes and Laterals

� American Association of State Highway and Transportation Officials(AASHTO)

� AASHTO HS20 - Standard Specification for Highway Bridges

PIP CVI02720April 1999 Sewer Details

Process Industry Practices Page 3 of 17

3. Design

3.1 The project design drawings specify the location, orientation and type of manholesand catch basins.

3.2 All structures shall be designed for AASHTO HS20 loading unless otherwise noted.

3.3 All concrete shall conform to PIP STS03001 unless otherwise noted.

3.4 Bedding and backfilling requirements for piping shall be in accordance withPIP CVS02700 and PIP CVS02315.