Report Made to the Water Commissioners of the City of Albany, August 1, 1850, on the Proposed Projects for Supplying the City with Water baixar o livro de graça

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1850 Excerpt: ...was 24 feet higher than at the lower site. The capacity of the lake at a level 7.3 feet above at the upper site, would be 30,000,000 gallons, and by raising the water 10 feet higher than this level, it will give a capacity of 99,000,000 gallons above the level necessary to discharge three millions through the pipes. If this location of the dam shall be determined upon, it would be necessary to conduct the water through pipes in the bottom of the valley, to near the site of the lower dam, in consequence of the steep sliding banks of the creek and the sinuosities of the line for a conduit. At the Kaikout an estimate has been made of the expense of crossing by pipes to save the expense of embankments. The Kaikout will be dammed at a point 4,400 feet above where the conduit crosses. At this place the stream is 9T% feet below the bottom of the conduit. The dam will be built 43 feet above the bottom of the stream, and will contain, with the water 11 feet deep, fifty millions of gallons. In consequence of the sinuosities of the line for a conduit along the sides of the ravines, it will be necessary to substitute an iron pipe to conduct the water from the dam to the conduit. This pipe will be 16 inches in diameter, and will discharge into the conduit at a level 2 feet above the bottom. The dam on the Blockhouse will be made by widening the embankment of the turnpike with a puddle wall 18 feet wide at top, and 30 feet at bottom, faced with gravel and a slope wall. The bottom and sides of the stream for 150 feet up will be lined with puddle. The dam will be 25 feet high, and the stream is 5 feet below the level of the conduit. The available depth allowing for the head to discharge the water in the pipe, and the elevation above the bottom of the conduit will be 9 feet...