A History of the Jetties at the Mouth of the Mississippi RiverJ. Wiley & Sons, 1880 - 383 páginas |
Índice
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Outras edições - Ver tudo
A History of the Jetties at the Mouth of the Mississippi River Elmer Lawrence Corthell Visualização integral - 1880 |
A History of the Jetties at the Mouth of the Mississippi River Elmer Lawrence Corthell Visualização integral - 1880 |
A History of the Jetties at the Mouth of the Mississippi River Elmer Lawrence Corthell Visualização integral - 1881 |
Palavras e frases frequentes
advance banks Barnard Board bottom canal Capt Chief of Engineers Coast Survey commerce Commission Comstock Congress construction cost crest cubic yards curve Danube deep channel deepening deposit depth and width depth of water discharge dredging dyke east jetty East Point estimate feet deep feet depth feet in width feet wide fifty feet Fort Saint Philip foundation mattresses guide piles gulf Gulf of Mexico head Humphreys hundred and fifty hundred feet improvement inches increase jetties and auxiliary jetty channel jetty system land's end Major Howell miles Mississippi River obtained officer Orleans Pass à Loutre payment permanent Plate Port Eads recommended sand scour sea end seaward Secretary Secretary of War secured sediment shoal slope South Pass Southwest Pass stone Sulina branch teredo thirty feet thousand feet three hundred tion twenty feet twenty-six feet twenty-two feet velocity west jetty willows YORK PUBLIC LIBRARY
Passagens conhecidas
Página 350 - President ; which said board shall make a survey of the mouth of the Mississippi River, with a view to determine the best method of obtaining and maintaining a depth of water sufficient for the purposes of commerce, either by a canal from said river to the waters of the Gulf, or by deepening one or more of the natural outlets of said river...
Página 263 - Eads shall be untrammoled in the exercise of his judgment and skill in the location, design and construction of said jetties and auxiliary works, the intent of this Act is not simply to secure the wide and deep channel first above named, but likewise to provide for the construction of thoroughly substantial and permanent works by which said channel may be maintained for all time after their completion.
Página 19 - SECTION 1. Be it enacted by the senate and house of representatives of the state of Louisiana...
Página 104 - War, and whose duty it shall be to report the depth of water and width of channel secured and maintained from time to time in said channel, together with such other information as the Secretary of War may direct.
Página 259 - ... to construct such permanent and sufficient jetties and such auxiliary works as are necessary to create and permanently maintain, as hereinafter set forth, a wide and deep channel between the South Pass of the Mississippi River and the Gulf of Mexico...
Página 249 - An act making appropriations for the repair, preservation, and completion of certain public works heretofore commenced under the authority of law...
Página 261 - When a channel thirty feet in depth, and three hundred and fifty feet in width, shall have been obtained by the effect of said jetties and auxiliary works aforesaid, the remaining one million dollars -lull be deemed as having been earned...
Página 66 - ... the gulf, is controlled by laws as fixed and certain as those which direct the majestic march of the heavenly spheres. Every phenomenon and apparent eccentricity of the river — its scouring and depositing action, its caving banks, the formation of the bars at its mouth, the effect of the waves and tides of the sea upon its currents and deposits — is controlled by laws as immutable as the Creator; and the engineer needs only to be assured that he does not ignore the existence of any of these...
Página 29 - The popular theory advanced in many standard works on hydraulics, to wit, that the erosion of the banks and bottom of streams like the Mississippi is due to the friction or impingement of the current against them, has served to embarrass the solution of the very simple phenomena presented in the formation of the delta of the Mississippi, because it does not explain why it is that under certain conditions of the water it may develop, with a gentle current, an abrading power which, under other conditions,...
Página 44 - A keg similar to that used in collecting water below the surface was sunk to the bottom of the river. The current immediately overturned it, and the valves opening allowed the water to pass freely through. After remaining a few minutes it was drawn suddenly up, and was invariably found to contain material such as gravel, sand, and earthy matter.