The failure of a 16-inch ductile cast iron water main was suspected to be corrosion related. The City of Renton, Washington has experienced a normal amount of leaks for the size of the water system they operate. However, when this catastrophic failure occurred, the city immediately put into motion a plan to identify the failure mechanism and implement mitigation procedures.

This paper describes the test procedures and results of the tests that identified the contributing causes of the pipeline failures.

Subject
Ductile cast iron, Electric current, Water, Materials, Piping, Carbides, Pipelines, Joints, Cables, Mechanical failure, Steel, Stray current, Carbon
© 1993 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1993
Association for Materials Protection and Performance (AMPP)
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