The Engineering Works of the Godavari Delta Volume 1; A Descriptive and Historical Accont

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. 1896 Excerpt: ...sand until the Stone Dam was raised above the water the whole way. "19th. I accordingly set to work the following day. The river which had greatly fallen meantime was nowhere more than 7 feet deep. The length as before about 500 yards and the volume of water passing not more than one-half what it was when we first commenced though considerably more than either Colonel Cotton or myself calculated. This second Dam was across the river in a week; the whole was done with the baskets, 20 boats being discharged together on a line at one and the same time and as all parts of the Dam rose simultaneously or nearly so, there never was the same trouble with the boats as previously. The difficulty though subdued, was not entirely overcome, for the river did not as anticipated remain at the level which it was thought the discharge through the under-sluices would preserve it, but it continued to rise as much as 3 inches a day. The action of the water in such works is to increase the depth immediately at and above the Dam by scouring the sand from under the stones; while the spaces unavoidably His letter, dated 12th December 1857, with P.M.G., No. 143, dated 26th January 1858. left between the baskets doubtless increased this to a certain extent, so that the stones always sunk during the night and the depth of water going over them being increased, the top ones were rolled off from time to time and so every day there were threatenings of breaches, which however were always averted by the timely application of the never failing baskets. The 'constant failures ' alluded to in your Proceedings of the 7th Instant were not properly such. There was but one absolute failure, viz., that mentioned above, but it is not possible for any one, professional or non-professional, to...