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	Morelos Dam - Wikipedia, the free encyclopedia
		The Morelos Dam is the final dam on the Colorado River.
		It was built in 1950 in the town of Los Algodones, Baja California.
		Categories: Dams of the Lower Colorado River Valley
	en.wikipedia.org /wiki/Morelos_Dam (65 words)

	Colorado River
		Morelos Dam after one of Mexico's foremost patriots, is of reinforced concrete spanning 1,400 feet (426.72 m) across the Colorado River.
		Morelos Dam is operated and maintained by Mexico under the supervision of the IBWC.
		Pursuant to a further interim agreement of the IBWC in 1972, the salinity of the waters delivered to Mexico was further reduced by passing to the river downstream of Morelos Dam an additional part of the saline drainage waters and substituting therefor additional waters of low salinity.
	www.ibwc.state.gov /html/colorado_river.html (1301 words)

	Lake Powell - Encyclopedia, History, Geography and Biography
		It was created by the flooding of Glen Canyon by the controversial Glen Canyon Dam, which also led to the creation of Glen Canyon National Recreation Area, a popular summer destination.
		Construction on Glen Canyon Dam began with a demolition blast keyed by the push of a button by President Dwight D. Eisenhower at his desk in the Oval Office on October 1st, 1956.
		The Dam is 710 feet (216 m) high, with the surface elevation of the water at full pool being approximately 3700 feet (1100 m).
	www.arikah.com /encyclopedia/Lake_Powell (1333 words)

	Glen Canyon Dam - Wikipedia, the free encyclopedia
		The dam is 1,560 feet long along its crest, 300 feet thick at the base and 25 feet thick at the top.
		Although the dam was not dedicated until 1966, it was able to begin blocking the flow of the river in 1963.
		Owing to this dam, there has not been the periodic flooding that would wash away and renew sand banks along that portion of the Colorado River that transited the Grand Canyon.
	en.wikipedia.org /wiki/Glen_Canyon_Dam (623 words)

	Colorado River (Site not responding. Last check: 2007-10-24)
		From Hoover Dam, the river flows south and forms part of the boundary between Arizona and Nevada, and the border between Arizona and California.
		But it was effectively dammed in the early part of 1907 and returned to its normal course, from which, however, there was still much leakage to the Salton Sea.
		The lower river from Davis Dam to Yuma is navigable by large paddlewheel boats and river barges, but commercial navigation on the river is unimportant because the river is cut off from the sea and other means of transportation are more efficient in the region.
	www.tocatch.info /en/Colorado_River_system_(southwest_U.S.).htm (1523 words)

	Parker Dam (Site not responding. Last check: 2007-10-24)
		Parker Dam is a concrete gravity-arch dam which spans the Colorado river, at a point 155 miles (250 km) downstream of Hoover Dam.
		The dam's primary functions are to act as a reservoir, and to generate hydroelectric power.
		The aqueduct is operated by the Metropolitan Water District of Southern California, which supplies water to almost all cities in the greater Los Angeles and San Diego areas.
	en.explicatus.org /wiki/Parker_Dam (256 words)

	The world's top hoover dam websites
		The Hoover Dam is a concrete gravity-arch dam in the Black Canyon, on the Colorado River border, between Arizona and Nevada.
		The dam was designed to control floods; to store water for irrigation, municipal, and industrial use; and to generate hydroelectric power.
		The dam and powerplant are operated by the United States Department of the Interior's Bureau of Reclamation.
	www.websbiggest.com /wiki-article-tab.cfm/hoover_dam (806 words)

	Disadvantages
		The 10 dams on the Colorado have turned its water clear and cold, inimical to the fish that evolved to live it, such as the bonytail chub and the Colorado squawfish.
		Notoriously, large dams like those on the Colorado have contributed to huge declines in anadromous fish (those that live in the sea but swim inland to historic spawning grounds) such as salmon, shad, steelhead, and sturgeon.
		Dams are not the only culprit, pollution and overfishing have also contributed, but the combination has virtually eliminated shad and sturgeon from the U.S. Atlantic coast, and salmon from many rivers in Europe and the American West and Northeast.
	www.uoguelph.ca /~dphill01/disadvantages.htm (478 words)

	Final Report to:
		Dams in the Upper Colorado have trapped all of the river's sediment load, thus the lower half of the river has been transformed into an erosive force, washing away the delta (Morrison et al, 1996).
		Water flow below Morelos Dam is potential water for wetland restoration, therefore, water flow at the SIB is a good indicator of water reaching the delta ecosystem.
		Now that dams upstream are filled, it is expected that periodical flood releases will be part of the normal operation of the dams during wet years.
	www.sci.sdsu.edu /salton/InfoDatabaseRioHardy.html (6785 words)

	ACCOUNTING SYSTEM FOR WATER USE BY VEGETATION IN THE LOWER COLORADO RIVER VALLEY
		The Colorado River is the principal source of water in the valley of the Colorado River between Hoover Dam and the international boundary with Mexico (fig.
		LCRAS is applied to the reach of the Colorado River between Hoover Dam and Morelos Dam to estimate consumptive use of river water by vegetation and to account for this use by point of diversion, diverter, and State to enable the Secretary of the Interior to meet the requirements of the Decree.
		Consumptive use by vegetation is estimated as the residual in a water budget for the reach bounded by streamflowgaging stations near Hoover and Morelos Dams.
	az.water.usgs.gov /factsheets/fact.lcras/fact.lcras.html (1135 words)

	Colorado River Water Users Association: Bureau of Reclamation (Site not responding. Last check: 2007-10-24)
		A minimum of 8.23 million acre-feet is released to the lower basin from Glen Canyon Dam in accordance with the Colorado River Compact of 1922 and the Mexican Water Treaty.
		The first structure on the Colorado River was Laguna Dam, completed in 1909 as part of the Yuma Project, which delivered water to both the Arizona and California sides of the river.
		Significantly, many of the dams that created the impacts resulting in the decline of the species were constructed 20 to 50 years prior to the passage of the Endangered Species Act.
	www.crwua.org /colorado_river/reclamation.htm (2745 words)

	Colorado River Report - Regional Conservation Committees - Sierra Club
		Above Parker Dam, the Colorado River Aqueduct diverts 1.2 maf/yr, and across the reservoir, the Central Arizona Project is pumping 1.6 maf/yr to Phoenix and Tucson.
		Glen Canyon Dam was authorized for construction by Congress in April 1956, and the dam was essentially completed in 1963, followed by completion of the power plant in 1964.
		Because CRSP and the construction of Glen Canyon Dam occurred before the passage of both the National Environmental Policy Act and the Endangered Species Act, no environmental studies on the impact of Glen Canyon Dam on the Colorado River ecosystem were done until the 1980s.
	www.sierraclub.org /rcc/southwest/coreport/background.asp (7388 words)

	Colorado River (U.S.) - Gurupedia (Site not responding. Last check: 2007-10-24)
		Several dams are built along the Colorado River beginning with Glen Canyon Dam near the Utah-Arizona border; other dams include Hoover Dam, Parker Dam and Davis Dam.
		Since the completion of the dams, every drop of water is removed from the river or evaporates before it reaches the sea.
		Hoover Dam (originally Boulder Dam), the first dam of its type was completed on the Colorado River in 1936 and impounds the waters of the river in the Mojave Desert, creating Lake Mead.
	www.gurupedia.com /c/co/colorado_river_(us).htm (811 words)

	04/21 PROJECTED LOWER COLORADO RIVER OPERATIONS SCHEDULE
		The average release from Painted Rock Dam was 0 cfs and Alamo Dam was 25 cfs.
		The Morelos Dam diversions for the week of April 21, 2003 are expected to be 3,000 cfs.
		Caution should be be exercised while using the river between Davis Dam and the Mexican Border at San Luis, Arizona.
	www.coloradoriverinfo.com /waterflowreports/03report04.21.html (246 words)

	Challenges: Wellton-Mohawk Irrigation & Drainage District
		Painted Rock Dam, upstream of the District, was to have had a major channel construction project associated with it.
		The salinity of Colorado River water at Imperial Dam increased from 693 ppm in 1945 to 894 in 1970, decreased to 820 in 1977, was near 900 ppm in 1994, and averaged around or below 700 ppm in 1997, with steep downward fluctuations during years of flooding.
		Due to a shortage of manpower and equipment, this was not always possible, and moisture from the adjacent irrigated acreage contributed greatly to the growth of phreatophytes (“water-loving” plants) in the uncultivated, non-maintained river channel.
	www.wellton-mohawk.org /challenges.html?PPCCCID=4b3b88a91de0ece3bdab8f3880ee301d (3439 words)

	crdvegtation (Site not responding. Last check: 2007-10-24)
		This a natural earthen dam located 21 miles northwest of the gulf created a natural 45,000 acre flood plain that grew to 160,000 acres from the large upstream releases of the river during the 1980's.
		The wetlands shrunk however to 3,000 acres after the dam was breached by floods.
		Ducks Unlimited studied rebuilding the natural dam, but determined the frequency of flows was too little and the quality of water too low to justify the project.
	www.uvm.edu /~cleveen/nr260/crdvegtation.html (624 words)

	Wyoming State Water Plan - Green River Basin Advisory Group: Reference Notebook, Law of the Colorado River
		No problems arose with regard to water deliveries to Mexico between 1945 and 1961 since the salinity of the waters delivered at the Northerly Boundary was generally within 100 parts per million (ppm) of the water at Imperial Dam, the last major diversion point for users in the United States.
		Second, there was a sizable reduction in river flows to Mexico in 1961 because of increased storage in Lake Mead in anticipation of the closure of the gates at Glen Canyon Dam in the Upper Basin in order to store water in Lake Powell.
		This increased the salinity of the water delivered to Mexico from an average of 800 parts per million (ppm) in 1960 to nearly 1,400 ppm in 1961 and to 1,500 ppm in 1962.
	waterplan.state.wy.us /BAG/green/briefbook/lor/lor-15.html (590 words)

	Photo Galleries
		This infestation is in the terminal section of the river, below all dams, which supplies the natural ecosystem and the Gulf of California.
		South and West of Morelos Dam, water is diverted to irrigate farmland in the Mexicali Valley of Sonora, Mexico.
		Photos from May and June, 2004 of the Quechan and East lagoons on the Lower Colorado River, as well as October, 2003 photos of salvinia on the brush gates at Imperial Dam in Yuma.
	lcrsalvinia.org /photogallery.htm (222 words)

	[No title]
		Hoover Dam to Davis Dam, Davis Dam to Parker Dam, Parker Dam to Imperial Dam, and Imperial Dam to Morelos Dam
		More accurate computation of discharge at the major dams along the Colorado River will also facilitate the use of water budgets for subreaches of the river to refine the estimates of consumptive use by vegetation along the river.
		Water-use rates for vegetation types that more accurately reflect spatial and temporal variability of evapotranspiration need to be developed to improve the distribution of consumptive use by vegetation; the identification of minor crops and multiple-cropped areas also needs to be improved.
	az.water.usgs.gov /lcr/pages/WSP2407AB.htm (415 words)

	The Colorado River Basin: Lifeline of the Southwest - DesertUSA
		This dam was controversial, and opposition to its construction helped shaped policy toward concepts of water management and environmental protection.
		From Havasu Lake, the reservoir impounded by the dam, water is transported some 250 miles across California to supply a portion of the water needs for Los Angeles and most of the water supply for San Diego.
		Davis, Imperial, Laguna, and Morelos dams further regulate flow and diversion in the lower basin.
	www.desertusa.com /colorado/coloriv/du_coloriv.html (1139 words)

	EPA: Federal Register: United States Section; Intent To Prepare an Environmental Impact Statement for the Lower ...
		Morelos Dam, located 1.1 miles (1.8 km) downstream of NIB, is an international gated structure and weir spanning from levee to levee in the channel and floodplain used for a variety of requirements and agreements.
		The main channel is a United States floodplain feature which, upstream of Morelos Dam, carries flows which are allocated to Mexico by the 1944 Water Treaty, along with occasional high flows.
		Downstream of Morelos Dam, the channel carries only surface water from leakage from Morelos Dam and occasional high flows.
	www.epa.gov /fedrgstr/EPA-IMPACT/1999/May/Day-21/i12836.htm (1186 words)

	9/03 PROJECTED LOWER COLORADO RIVER OPERATIONS SCHEDULE
		Yesterday, the average Colorado River flows were 1,174 cfs near the Yuma Fourth Avenue Bridge and 1,493 cfs at the Northerly International Boundary.
		The average release from Painted Rock Dam was 0 cfs and Alamo Dam was 25cfs.
		The Morelos Dam diversions for the week of September 3rd are expected to be 1,500 cfs.
	www.coloradoriverinfo.com /waterflowreports/report09.02.01.html (224 words)

	Mexico Crop Travel May 2001
		Most of the water passing through the gates of Obregon dam probably originates as rainfall in the mountains along the border of Sonora and Chihuahua states.
		About 5 miles south of Morelos Dam, the main channel divides into a south and a west leg, which then sub-divide numerous times into smaller canals.
		Like all the distribution centers, Morelos Dam is operational 24 hours a day, with a pre-determined schedule of what crops get water during specific periods of time on specific days.
	www.fas.usda.gov /pecad2/highlights/2001/06/mex/mxtrep501b.htm (2043 words)

	Masahiro Murakami
		This legislation was in two parts: one for salinity-control measures downstream of the Imperial dam, and one for salinity-control measures in the seven Colorado River basin states upstream of Imperial dam.
		The proposal to build a single large dam at Aswan for multiple objectives including flood control, year-to-year water storage, and hydro-power generation was put forward by Adrein Danionson in 1949, as an alternative to a "century storage" scheme.
		The Dukan dam, with a reservoir storage capacity of 6.3x109 m3, was completed on the Lesser Zab River in 1959, while further south, on the Diyala River, the Darbandikhan dam, with 3.25x109 m3 of storage, was opened in 1961.
	www.biopolitics.gr /HTML/PUBS/VOL6/HTML/murakami.htm (5308 words)

	Wyoming State Water Plan - Green River Basin Advisory Group: Reference Notebook, Law of the Colorado River
		The result was that the total deliveries exceeded the 1.5 million acre-feet per year guaranteed by the Treaty since the bypassed Wellton-Mohawk drainage waters were not counted as part of the Treaty water.
		Under Minute No. 241 Mexico further requested that the United States discharge the balance of Wellton-Mohawk drainage water (approximately 95,000 acre-feet) below Morelos Dam, for which no substitution of fresh water was to be made, and which was charged to Mexico's 1.5 maf deliveries.
		This resulted in a further decrease of the average salinity from 1,140 ppm to 980 ppm for the year ending June 30, 1973, which was about 130 ppm higher than the average salinity of water arriving at Imperial Dam for a similar period.
	waterplan.state.wy.us /BAG/green/briefbook/lor/lor-16.html (481 words)

	Two Rivers, Two nations, One History: Tranformation of the Colorado River
		Despite the construction of Morelos Dam and the security of the Mexican Water Treaty, increased cultivation and immigration continued to deplete water and land resources in and around Mexicali and San Luis Rio Colorado.
		From 1940 to 1950, population increased in the region from 45,569 to 137,200 inhabitants.
		With the completion of Morelos Dam and the initiation of irrigation from deep wells in the region, 145,382 hectares were being farmed.
	www.sci.sdsu.edu /salton/TwoRiversTwoNationsCoR.html (17047 words)

	WESTERN BOUNDARY wATER BULLETIN -2001
		18 *Diversions from the Colorado River - Intake Canal at Morelos** Diversion Structure - Discharges.
		19 * at Morelos** Diversion Structure - Stages.
		21 * Tributary - Wellton-Mohawk Drainage Water Discharged to Colorado River below Morelos Dam**.
	www.ibwc.state.gov /wad/wbcont.w01.htm (717 words)

	Colorado River Delta \| a resource for the colorado river delta
		A group of Mexican and UA researchers has surveyed an important wetland area served by seepage by the All American Canal.
		Following construction of Hoover Dam (1935) and Glen Canyon Dam (1964), little or no water flowed to the Gulf of California.
		During years of excess precipitation in the watershed, as during the El Niño cycles of 1983-86, 1993, 1997-99, water is spilled from the dam system to the sea, revitalizing the delta habitats along the way.
	www.ag.arizona.edu /colorado_river_delta (323 words)

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