CLAY PIPE
INSTALLATION HANDBOOK

The Clay Pipe Installation Handbook is published by the National Clay Pipe Institute. To request a copy of the handbook please fill out the Request Form.

Chapter 1, Supervision of Construction

Scope of Work

The scope of work required for sewer projects is clearly stated in the plans and specifications. Supervisors of the job must interpret these plans and specifications to insure that quality construction is obtained.

Supervisors of construction inspect both workmanship and materials. They must be familiar with good construction practices and project specifications to see that they are fulfilled in every detail. A copy of the plans and specifications must be available at all times.

Each of the following steps in construction must be carefully supervised and inspected and all safety regulations enforced.

• Inspection of all materials.
• Excavation of the trench.
• Installation of sheeting or shoring.
• Bedding.
• Installation of the pipe.
• Initial backfill around the pipe.
• Final backfill of the trench.
• Installation of service connections. (building sewers and building drains)
• Inspection and testing before acceptance.

Job Records

A log book is used to record all important events during each day's construction. These notes provide an accurate written record. Typical notations in the log book are:

1. Weather conditions.
2. Equipment used each day and number of people employed.
3. Time of delivery, quantities, dimensions of items such as sewer pipe, manholes, sand, gravel and crushed rock.
4. Time and place of encountering unmarked utility lines or other unexpected obstacles.
5. Conditions of trench, such as dry, wet, flooded, running sand, gravel and crushed rock.
6. Location of rock and its volume, especially when its excavation is to be paid for as a separate bid item.
7. Type of sheeting or shoring used and whether or not it is left in place.
8. Type of equipment and method used to achieve specified compaction of backfill.
9. Location of connections. (These locations should be transferred to "as-built" drawings for future reference.)
10. Location and description of pipe cradles, pipe encasement and other special work.
11. Accidents and other unusual events.
12. Results of tests as required by the specifications.
13. Quantity of Work done each day.

Working Relationships

There must be cooperation among the contractor, the inspector, the engineer and the material supplier br the work to proceed smoothly.

If adverse construction conditions are encountered, or major deviations from plans and specifications are required, the engineer must be consulted and his recommendations followed.

NCPI - Clay Pipe Installation Handbook

| Chapter 1 | Chapter 2 | Chapter 3 | Chapter 4 | Chapter 5 | Chapter 6 | Chapter 7 | Chapter 8 | Chapter 9 | Appendix |    

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Copyright © 1998 National Clay Pipe Institute
Last modified: April 1, 1998