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15 feet 20 feet abutment apron arches ashlar back face base bear-trap bed-rock bottom bridge canal cast-iron Chief Engineer clay coffer-dam concrete core-wall crest cribs Croton Dam Croton River cubic feet cubic foot cubic metres cubic yards curved cyclopean masonry dam was built depth diameter down-stream face down-stream side earth earthen dam elevation embankment excavated feet high feet long feet wide filled flow flume foundation frames front face gallons gate-house gates gravel horizontal hydraulic irrigation joints laid leakage length lines of pressure lower main dam masonry dam maxima pressures maximum height miles mortar movable dams needles O.OO outlet-pipes overflow-weir pass piers piles pipes placed planks Plate Portland cement river river-bed rock rock-fill sand shutters sluice-gates sluices specific gravity spillway square centimetre square miles steel sheet-piling stone surface timbers tons trench tunnel up-stream face up-stream side valley vertical wall waste-weir water-tight weir wickets width
Page 398 - In the opinion of the court the Maine was destroyed by the explosion of a submarine mine, which caused the partial explosion of two or more of her forward magazines. ' ' 8. The court has been unable to obtain evidence fixing the responsibility for the destruction of the Maine upon any person or persons.
Page 460 - Ample means shall be provided for watering the banks, and any portion of the embankment to which a layer is being applied shall be so wet, when required, that water will stand on the surface. The contractor shall furnish at his own cost the necessary steam...
Page 471 - ... engineer shall be final and binding on the contractor; and all directions and explanations required, alluded to, or necessary to complete any of the provisions of...
Page 471 - Any unfaithful or imperfect work that may be discovered before the final acceptance of the work shall be corrected immediately, on the requirement of the engineer, notwithstanding that it may have been overlooked by the proper Inspector or estimated.
Page 457 - The work will also be built in conformity with these specifications. These plans show only the general character of the work, and during its progress such working plans will be furnished from time to time by the engineer as he may deem necessary.
Page 472 - The inspection of the work shall not relieve the contractor of any of his obligations to perform sound...
Page 465 - To insure its good quality, all the cement furnished by the Contractor will be subject to inspection and rigorous tests; and if found of improper quality will be branded, and must be immediately removed from the work; the character of the tests to be determined by the Engineer.
Page 464 - American cement and Portland cement are to be used. The American cement must be in good condition and must be equal in quality to the best Rosendale cement. It must be made by manufacturers of established reputation, must be fresh and very fine ground, and in well-made casks.
Page 10 - ... design. We should be much surprised if, with all the labour spent on this point, the bulk of existing dam constructions are not for masonry under very considerable tension, ie, a tension across the vertical sections, which has been hitherto disregarded. " We propose, therefore, to lay it down as a rule for the construction of future dams that the stability of the dam from the standpoint of the vertical sections must be considered in the first place. If this be satisfactory, we believe that the...