Research Article
Oct 1982
Economic Analysis of Rehabilitation of Water Mains
Publication: Journal of the Water Resources Planning and Management Division
Volume 108, Issue 3
Abstract
Cleaning and relining of water transmission lines is economical if the costs are less than the savings in energy and pumping capacity which occur because of the increased carrying capacity of the pipe. Criteria are developed to determine if it is economical to clean and reline a pipe for two cases: (1) Flow not significantly changed by rehabilitation of pipe; or (2) system is looped so that change in carrying capacity significantly changes flow. The decision depends on the cost to clean and reline the pipe, the price of energy, the incremental cost of pumping capacity, the peak and average flow in the pipe, the nominal diameter, the interest rate, the year in which the pumping eguipment will be upgraded or replaced, and the Hazen-Williams C factor before and after rehabilitation. A sensitivity analysis of several of the variables is presented.
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Published In
Journal of the Water Resources Planning and Management Division
Volume 108 • Issue 3 • October 1982
Pages: 296 - 308
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Oct 1982
Published online: Feb 12, 2021
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Authors
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Thomas M. Walski, AM.ASCE
Research Civ. Engr., Water Resources Engrg. Grp., U.S. Army Engr. Waterways Experiment Station, Vicksburg, Miss
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.