Report on Water-supply, Water-power, the Flow of Streams and Attendant Phenomena, Volume 3 |
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9 months amount April August available power average flow Batsto Boonton Bound Brook Bridgeton canal cent coast streams COUNTY Creek Croton cubic feet daily per square December Delaware Delaware river drainage area drains draught driest period Egg Harbor estimate evaporation fall per square February feet fall feet per second flood-flow floods Flouring Flow in thousand foot fall forest gallons daily gaugings Grist ground-flow ground-storage H. P. UTILIZED Hackensack Hackettstown Highlands horse-power per foot Inches flowing Inches of rainfall inches storage January July June KIND OF MILL Kittatinny valley Lake Hopatcong Lambertville March mile of water-shed minimum flow monthly flow Morris canal mouth Neshaminy North Branch November October ordinary dry Passaic River Pequannock Philadelphia Pompton pond pondage rain Ramapo Raritan reservoirs river Rockaway sandstone second per square September shows southern New Jersey square miles stream-flow Sudbury supply Table temperature thousand gallons daily Trenton water-shed water-supply Whippany
Popular passages
Page xv - The waters of the earth are taken up by the process which we call evaporation and formed into clouds, to be again precipitated to earth in the form of rain or snow. Of the water which falls upon the basin of a stream, a portion is evaporated directly by the sun ; another large portion is taken up by...
Page xv - Evaporation we make to include direct evaporation from the surface of the earth, or from water surfaces, and also the water taken up by vegetation, most of which is transpired as vapor, but a portion of which is taken permanently into the organisms of the plants.
Page 177 - The river is tidal and navigable to New Milford, about 20 miles from the mouth, where navigation is cut off by low dams of the Hackensack Water Co. Navigation above Hackensack is limited to boats of light draft.
Page 166 - The next branch to the southward is the Whippany, which rises near Mt. Freedom, about six miles west of Morristown, and flows a little north of east, joining the Rockaway less than a mile above its junction with the Passaic. The water-shed is 71.1 square miles, of which 25.4 square miles above Morristown is in the Highland region. The remainder lies almost entirely upon the red sandstone within the Central Passaic valley. This portion is covered with large beds of drift, being crossed by the terminal...
Page xv - Stream-flow includes the water which passes directly over the surface to the stream, and also that which is temporarily absorbed by the earth to be slowly discharged into the streams. A portion, usually extremely small, passes downward into the earth and appears neither as evaporation nor as stream- flow. It is usually too small to be considered, and we may for our purposes assume that all of the rain which falls upon a given water-shed and does not go off as stream-flow is evaporated, using the...
Page 36 - The watershed of the Sudbury River contains many hills with steep slopes, some of which are used for pasturage and others are covered with a small growth of wood. The valleys, as a rule, are not steep, and there are extensive areas of swampy land, generally covered with a growth of brush and trees. The hills are, for the most part, of rather impervious clayey material, containing boulders, while the flat land is sandy and in some cases gravelly.
Page 35 - No series which does not embrace a period as long as our rainfall cycle of 60 years can be considered entirely satisfactory, but fortunately some of these embrace years of extremely light and extremely heavy rainfall, and are in this respect all that can reasonably be asked for. Sudbury River Gauging*. The Sudbury river is at the extreme eastern end of Massachusetts, about fifteen miles west of Boston, and is one of the sources of watersupply for that city. In the Transactions of the American Society...
Page 209 - To recapitulate, then, this branch of my subject, I may say that the stage of the river throughout the year is ordinarily as follows : January, frozen and medium height ; February and March, breaking up and high ; April, May and June, high ; July, subsiding ; August and September, low; October, low, but subject to high freshets; November, low, often very low; December, rising a little and freezing.
Page 46 - Alleghenies in Virginia and West Virginia. These branches, with their tributaries and the tributaries of the main stream as far down as the Shenandoah, drain a series of narrow and generally fertile valleys lying between the parallel ranges which make up the system of the Alleghenies in this region. Their slopes are not, as a rule, very great, and their beds are of gravel and sand.
Page 301 - Croton water-shed, which is, however, a high allowance for storage for water-supply purposes), this would cost $108,800. To provide auxiliary steam-power and operate the same for three months it will cost, capitalized at 6 per cent., $415 per net horse-power. It is therefore evident that storage at these figures would not be as economical as auxiliary steam-power until the fall was 262 feet. Probably with a less fall than 100 feet it will rarely be as economical to store water as to provide an auxiliary...