COLLECTING WELL AT MARBLEHEAD, MASS

COLLECTING WELL AT MARBLEHEAD, MASS

NEW COLLECTING WELL, MARBLEHEAD, MASS. VIEW AT THIRTY FEET BELOW SURFACE.

ARBLEHEAD, Mass., in Water Commissioners Robert C. Bridge ( chairman ), William Reynolds, and Henry F. P. Williams with Thomas Ingalls, Jr., as clerk and registrar, and Thomas Main as engineer, has a thoroughly up-to-date board and set of officials. They have been making extensive additions to the mains, the contract for supplying 4,500 feet of 6-inch pipe, weighing 30 pounds per foot, and 500 feet of 5-inch pipe weighing 20 pounds per foot, having been tilled by the McNeal Pipe and Foundry Company, of Burlington, N. J. A portion of the hydrants and gates needed bring on hand, the rest was furnished by the Chapman Valve Company,of Indian Orchard, Mass.,while the gate-boxes were supplied by the Walworth Manufacturing Company, of Boston. John T. I-angford, of Newtown,Mass., received the contract for laying pipe and rock-ex. cavation. Between June 15 and August I, 1894, the work, which involved excavating 530 cubic yards of rock, was completed, and 5,459 feet of pipe were laid, making the whole length of the system 26 miles,2.658 feet. On this new line of pipe arc 2 4-inch gates and 10 hydrants, making the total number of gates 275, and hydrants, 290. The commissioners then built a large collecting, or filtering well at 1.egg’s IIill,about l.ouo feet south-east from the pumping station, this particular locality having been chosen after experiments (continued during two years) had satisfied them that good water could be obtained there from a properly constructed well. The plans and specifications for this well were drawn and supplied by Mr. F.I,.Fuller,C.K., of Boston, the bid accepted being that of Messrs. J. N.Drew and Company, of Malden, who began work about October 1, 18174, and kept steadily at the laborious operation till its full completion. The well is 2b feet in diameter, and the contract as per specifications bound the contractors to begin at the top of the granite curbing,the footing course to be 2 feet high and 5 feet.6 inches wide,the edge, when finished, to be level,and a true circle. Two openings were to be left as shown in the plan; one with a granite sill stone for the 8-inch pipe leading to the pumping station, another for a 6-inch pipe, and two without granite sills for 6-inch pipes, the granite sill stone to be 1 foot in thickness. The dry stone wall was to be lined with 12-inch brickwork resting on the footing course, and the granite sills supporting the suction were to be thoroughly connected with the brickwork. To whatever depth the well was carried the footing course should still lie 2 feet high and the brick lining 12 inches thick. The curbing was to be circular in form and of such dimensions as to give a clear diameter of 46 feet, 6 inches for the lower curb, and 52 feet, 6 inches for the upper curb. The well was to be any depth from 20 feet to 35 feet, as the commissioners should decide, measuring from the top of the coping stone. The contractors found the work to be very difficult not only from the : mount of rock that had to be excavated, but also from the large quantity of water that was encountered during their operations. The addition thus made to the supply will now afford the town of Marblehead an abundance of water for years to come. At present the number of takers is 1,177, among these, however, are twelve public buildings which do not pay the department for the water.

Our illustrations show a view of the new well from the top of the bank and another of the same well 30 feet below the ground.

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