A History of the Jetties at the Mouth of the Mississippi RiverJ. Wiley & Sons, 1880 - 383 páginas |
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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 |
A History of the Jetties at the Mouth of the Mississippi River Elmer Lawrence Corthell Visualização integral - 1880 |
Palavras e frases frequentes
advance Board bottom canal Capt chart Chief of Engineers Coast Survey commenced 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 feet deep feet depth feet in depth feet in width feet wide fifty feet Fort Saint Philip foundation mattresses Grand Republic guide piles gulf Gulf of Mexico head Humphreys hundred and fifty hundred feet improvement inches jetties and auxiliary jetty channel jetty system land's end Major Howell material miles Mississippi River mouth navigable obtained Orleans Pass à Loutre payment permanent Plate Port Eads scour sea end seaward Secretary Secretary of War secured sediment shoal slope soundings South Pass Southwest Pass stone thirty feet thousand feet three hundred tion twenty feet twenty-six feet twenty-two feet velocity west jetty willows wing dams
Passagens conhecidas
Página 303 - 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 256 - Congress; and that the sum of twenty-five thousand dollars, or so much thereof as may be necessary, is hereby appropriated, out of any funds in the treasury not otherwise appropriated, to defray the cost of said survey.
Página 352 - 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 372 - An act making appropriations for the repair, preservation, and completion of certain public works on rivers and harbors, and for other purposes, approved June 20, 1872.
Página 306 - ... 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 267 - ... from the date when a channel of said depth and width was first obtained; making a total aggregate of four million two hundred and fifty thousand dollars for the aforesaid payments, the respective depths and widths of channel being measured at average flood tide, as ascertained and determined by the Secretary of War. 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...
Página 19 - SECTION 1. Be it enacted by the senate and house of representatives of the state of Louisiana...
Página 265 - ... 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 29 - ... the first place below where the current is again increased. 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,...
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.