New Supply for Holyoke.
The Holyoke (Mass.) water commissioners heard a verbal report Monday from Engineer McClintock of Boston regarding the increase of the water supply. Mr. McClintock has been at work on the matter for several weeks and has carefully investigated every plan proposed. He has finally settled on the plan to draw water from the hills south of Westfield. This plan was originated by Engineer Tighe of the waterworks. Its main details are decided on and are something as has been outlined. A main will belaid from Munn’s brook in Granville to Ashley pond and eventually to the Whiting street re,ervoir. This main will be about eleven and onefourth miles long if it ends at Ashley pond. It will be either twenty or twenty-four inches in diameter* and*will deliver 5,000,000 or 8,000,000 gallons of water in twenty-four hours as the case may be. The intake will be in a small reservoir on Munn’s brook at which the surface of the water will be about 130 feet above Ashley pond. The pipe will deliver the water at no pressure as all the head will be used up in overcoming the friction on the pipe. The plan is to build a small dam a short distance below the confluence of Tillson’s and Dickinson’s brooks and hold water enough so that it can be allowed to settle before it passes into the main. The dam will be about thirty-five feet long at the base and will rise twenty or thirty feet as may be decided. Only a small amount of water will be stored as the brook will supply the capacity of the pipe at nearly every season of the year. There may be a few days on which there would be no waste, but ordinarily there would be a large amount of water flowing over the dam. I he watershed that it is proposed to tap is a large one and would furnish much more water than can ever be used by the city. The outlay necessary now will be only for the main and a small dam and gate-house. The main will cost about $226,000 and the dam not over $4000. The State board of health has examined the place and approved of the plan. The water is pure and good and as compared with the other sources that have been investigated Munn’s brook and the hills of Granville lead the rest.
The Little river source is still being considered by the engineers as it may be desirable to provide a supply for all future time. The engineers have already considered the future possibilities of Munn’s brook watershed. If a dam from fifty to sixty feet high be placed at the proposed intake it will hold back 120,000,000 gallons of water and would furnish a sure supply for a city twice the size of Holyoke. This outlay will not be needed for twenty years, but plans have been made so that the dam could be built as an adjunct to the system. Such a dam could be built for $50,000. The commissioners will apply to the legislature for permission to increase the debt of the department sufficiently to build the main. Mr. McClintock will make a written repoit of the matter in a short time.