what are the upstream effects of damming a river?
363601
Yes, after constructing the dam, they do cause an area to be "flooded" but it is usually a very low-lying wet place anyways. The sad thing is that sometimes they take some historic sites, cemetaries, & even some people's homes. See website below about how Santee Lakes were created in SC. One of SC's Revolutionary War hero's homes *was covered for that purpose.\n\nSediment will keep building up behind a dam. I am not sure if this compromises the structure of the dam; I guess that depends on materials from which the dam was constructed.\n\nThese sediments will start filling in the lake.\n\nFish that go upstream to spawn will have a barrier so it may cut fish populations upstream.\n\nI can't think of anymore.\n\nDownstream is more detrimentally affected than the upstream.\n\nThere is less water being channeled through the stream/river bed. This can be a problem for cities that use the river as a water source or for irrigation.\n\nExample: Colorado River in western US has several dams of which the most notorious are the Glen River & Hoover Dam. I think there are about 6 or 7 along the entire stretch of the river. B/c of this, all the water in the river is completely depleted before it ever reaches the Gulf of California; it actually dries up before it gets there!\n\nKeep in mind, you are in an arid region which requires irrigation. But the whole point of me telling this is that dams are used to reservoir the water & that is where they mostly get their stores/supplies of water.\n\nAnyway, as with anything else, dams serve for good as well as they do for bad. It's just a matter of weighing the whole thing out.\n\n:)
848753
Call or better yet visit with local officials to gain inside information on dam opening and closing. I live in Michigan here we have a river with the same situation. I approached one of the damn employee's he now calls me everytime there about to open the damn.
208667
The headwaters for a stream may start at relatively high elevations fed by ice cold snow melt and springs.  Velocity is greatest moving down a mountain slope and purity may also be greatest in runoff water.  Further downstream, the velocity may be less due to a smaller gradient but volume may increase because of tributaries and additional springs.  Mineral contant may increase downstream because of contributions from groundwater.  Sediment and silt may become finer downstream due to less gradient and veloocity.  Temperature may increase downstream because of solar energy heating inflow.  Biological load may increase downstream as the stream passes fertile terrain with organic matter including decayed materials.  Polution may increase downstream because of the influence of man including farms and factories and municipal sewage treatment outflows.
550838
Well, i was involved with some folks who were catching the rain off their rooftop in barrels, then using it to water gardens etc.  They had to modify the downspouts to go into the barrels.  Any way to catch, direct and store the water will work.
1078329
Depending on the location of landfall, there can be numerous effects on the environment. In general, you can expect severe damage to trees and plants which will affect wildlife habitat for some time. Plant life is easily defoliated and trees uprooted during high wind/rain events.\n\nAnother possible impact could be pollution to the surface and groundwater. Storm surge and heavy rains can easily cause water treatment plants to overflow and contaminate fresh water sources. Near by agricultural lands could also cause water contamination if the become flooded. Pollution would impact fish and other animals that depend on the fresh water supply.\n\nCoastal areas, including coral reefs and sand quality, are usually devastated by hurricanes too. Damage to corals can cause an imbalance to coastal ocean aquatic life.\n\nThere are many affects of hurricanes on the environment and people, but above just describes a few. Doing a key word search for "coastal hurricane impacts" or "hurricane impact on ecosystem" might give you more information
1004729
Yes. And lakes, land masses, nay number of thing. (The larger the object the greater the effect, the less viscous the object the greater the effect.)\n\nLots of details at source below.
1138304
Dams close up a river so the water stays in one place and forms an artificial lake. Canals are water passageways that boats carrying cargo can use to move around.
679675
Dear Editor,\n\nI am a student concerned about the recent water supply shortages caused by mismanagement by the water supply authorities.  The shortages have caused me no end of misery.  Not only am I not able to take a shower, or flush my toilet consistently, I am becoming dehydrated from lack of fresh water to drink.  As a result, I can't do my own homework and must instead ask strangers on the internet to do it for me.\n\nI would appreciate it if you could write an editorial on the subject to pressure the authorities to increase the water flow.\n\nSincerely,\n\nMy name, not somebody else that I copied from.
375240
There's a page that covers this here (http://www.urbanedpartnership.org/target/units/river/tour/hist.html)
639920
its simple.\nwhen boat travels downstream the two velocities add up to give the answer 15+3=18km/hr.\nwhen boat travels upstream the velocity of river gets subtracted from velocity of boat which gives the result as 15-3=12km/hr.
360345
The water supply was at a higher elevation than the fountain, which created pressure. It's the same principle as community water towers of today.
880726
I stayed at Gaston's years ago and had a great time fishing the river.  I know nothing about Newlands, so I can't comment on them.  As I recall, my dad and I just went out on our own, without a guide, and ended up having a much better catch than any of the guide boats brought in.  Its been awhile, but as I recall, we just took our boat upstream and then fished as we floated back down, throwing our lines up ahead into rapids as we approached them.  The memory that sticks out most in my mind is that we caught a lot of fish in that river.
334381
http://www.karun3.com/technical/?item=7\nhttp://www.karun3.com/related%5Finfo/about%5Fhydro/hydropower%5Fmachinery/
280612
The do it so that the area around the dam floods. The water gives the beavers a safe place to live.
593145
Deltas are not so much dependent on overflow of a river as they are on the amount of sediment a river is carrying & the velocity of the river.\n\nDeltas form from sediments "dropping out" of a river.\n\nDropping out refers to the sand, silt, and clay becoming to heavy for the river to carry.\n\nA river's carrying capacity (how much sediment it can carry at one time) is determined by how fast it is moving. The velocity is determined by how wide the channel is & how much water is running through it at one time.\n\nWhen a river nears the ocean it begins to slow down due to gravity and nearer the ocean, tidal interference. It's carrying capacity is lowered greatly.\n\nThe heaviest of the sediments begin to drop out first. This would be sand. The next would be silt. By the time it reaches the brackish water near the ocean, the clay will become too heavy due to interaction w/ the salt water. It too will "drop out".\n\nOver time, layers of sediment are built up. Eventually they will reach and exceed the water level of the river. This is the beginning of a delta.\n\nDeltas only form in river dominated areas. This means the areas where the amount of water & sediment from a river greatly outweigh the "strength" of the tides. Deltas will not form in areas where tides are strong. The sediment would be washed away by the action of the tides.
964624
There is headward erision (where the upper course erodes at the head), Gulley Erosion( where it forms gorges and gulleys) and there is erosion by debris(bigger rocks or stones along the river bed). These can also cause potholes in the river bed.
409355
the effects that it caused.