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Topic: Masonry dam

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	Dam - Wikipedia, the free encyclopedia
		A diversionary dam is a structure designed to divert all or a portion of the flow of a river from its natural course.
		Masonry dams are of either the gravity or the arch type.
		A steel dam is a type of dam briefly experimented with in around the turn of the 19th-20th century which uses steel plating (at an angle) and load bearing beams as the structure.
	en.wikipedia.org /wiki/Dam (3075 words)

	Learn more about Dam in the online encyclopedia. (Site not responding. Last check: 2007-11-05)
		Dams may be built to provide water for irrigation or town water supply, control the amount of water in rivers or to provide hydroelectric power.
		Rock-fill dams are embankments of loose rock with either a watertight upstream face of concrete slabs or timber or a watertight core.
		Earth dams are constructed as a simple homogeneous embankment of well-compacted earth, sometimes with a watertight concrete core or upstream face, or sometimes with a hydraulic fill to produce a watertight core.
	www.onlineencyclopedia.org /d/da/dam.html (1124 words)

	Dam - Encyclopedia, History, Geography and Biography
		One of the first dams built was the Dujiangyan dam on the Minjiang River or Min River, a tributary of the Yangtze, in what is now the province of Sichuan.
		Dams which are formed by human agency are typically classified according to structure, intended purpose or height.
		Damming a river and altering its flow pattern generates a number of physical and biological impacts.
	www.arikah.com /encyclopedia/Dam (3129 words)

	The Aswan Dams: Technical Aspects Page 2
		The masonry mortar in the original dam and the first heightening is composed of moderately hard light gray cement paste and coarse, evenly graded river sand containing granite, quartz, feldspar and Metaquartzite with minor amounts of mica.
		The mortar in the masonry of the second heightening is brownish, lean and dense with a moderate number of small to medium size pores that are not dispersed uniformly.
		Its masonry sand was finer and contained a large number of clay particles that were apparently beneficial to the consolidation of the masonry.
	carbon.cudenver.edu /stc-link/aswan04/technical2.html (228 words)

	Withdrawl of Roosevelt Dam: National Historic Landmarks Program (NHL) (Site not responding. Last check: 2007-11-05)
		Roosevelt Dam, as originally conceived and built, was to be a symbol of success and a showpiece for the new agency.
		This type of dam, gravity arch, retains water behind it by means of its weight and the compressive force of the arch.
		The original dam had a structural height of 280 feet and measured 723 feet long at the crest; the dam now has a structural height of 357 feet and a crest length of 1,210 feet.
	www.cr.nps.gov /nhl/DOE_dedesignations/Roosevelt.htm (1735 words)

	Dam
		A dam (a common Teutonic word, compare to Dutch dam, Swedish and German damm, and the Gothic verb faurdammjan, to block up) is a barrier across flowing water that obstructs, directs or retards the flow, often creating a reservoir, lake or impoundment.
		A diversionary dam is a dam that does not completely block a river.
		Earth dams are constructed as a simple homogeneous embankment of well-compacted earth, sometimes with a watertight concrete or clay core or upstream face, or sometimes with a hydraulic fill to produce a watertight core.
	www.knowledgefun.com /book/d/da/dam.html (1446 words)

	Dam Terms Glossary (Site not responding. Last check: 2007-11-05)
		ARCH DAM - A concrete or masonry dam that is curved to transmit a major part of the thrust due to water pressure to the abutments.
		In the case of an embankment dam, the blanket may be connected to the impermeable element in the dam.
		DAM - A barrier built, usually across a watercourse, for impounding or diverting the flow of water.
	water.nv.gov /Engineering/Dams/Glossary.htm (2929 words)

	FEMA: Federal Guidelines for Dam Safety: Glossary of Terms (FEMA 148)
		Dam safety is the art and science of ensuring the integrity and viability of dams such that they do not present unacceptable risks to the public, property, and the environment.
		For an embankment dam, the junction is referred to as the upstream toe of the dam.
		The watershed for a dam is the drainage area upstream of the dam.
	www.fema.gov /plan/prevent/damfailure/fema148.shtm (8352 words)

	Dambusters
		The Mohne being the most important of them, the reason being this dam near Dortmund was a catchment type dam its role was to collect rainwater and to prevent flooding of the valley.
		This was yet another very impressive dam being the largest masonry dam in Germany, it reached 138 feet into the air and was 119 feet thick at the base tapering to 20 feet at the top and a lenght of 1310 feet.
		This masonry type dam was built between 1902 - 1905 it has a wall height of 45 feet and holds back 15 million cubic metres of water.
	www.dambusters.org.uk /dams.htm (542 words)

	SRP: Roosevelt Dam
		Roosevelt Dam was originally constructed between 1905 and 1911 to control to the erratic flow of the Salt River and to harness the water for irrigation.
		Once the world's tallest masonry dam, this structure is named after President Theodore Roosevelt, who was instrumental in approval of the Federal Reclamation Act of 1902, and who dedicated the original dam in March 1911.
		Renovations at Roosevelt Dam used 444,000 cubic yards of concrete, enough to pave a two-lane road from Phoenix to Tucson.
	www.srpnet.com /water/dams/roosevelt.aspx (232 words)

	Masonry Portal @ Masonryandstone.com (Site not responding. Last check: 2007-11-05)
		Masonry is the building of structures from individual units laid in and bound together by mortar.
		The common materials of masonry construction are brick, stone such as marble, granite, travertine, limestone; concrete block, glass block, and tile.
		Masonry is commonly used for the walls of buildings, retaining walls and monuments.
	www.masonryandstone.com (961 words)

	WDNR - Dam Safety Definitions
		MASONRY DAM - Any dam constructed mainly of stone, brick, or concrete blocks that may or may not be joined with mortar.
		A dam having only a masonry facing should not be referred to as a masonry dam.
		For an embankment dam, the junction of the upstream face with the ground surface is called the upstream toe.
	www.dnr.state.wi.us /org/water/wm/dsfm/dams/definitions.html (1718 words)

	NYSDEC - An Owners Guidance Manual for the Inspection and Maintenance of Dams in New York State, Glossary
		A concrete or masonry dam that is curved so as to transmit the major part of the water pressure to the abutments.
		With reference to a wall or concrete dam, a mating of material, masonry or brick, for architectural or protection purposes, e.g., stonework facing brickwork facing With reference to an embankment dam, an impervious coating or face on the upstream slope of the dam.
		An arch dam in which part of the water pressure is transmitted to the abutments by horizontal thrust and part to the foundation by cantilever action.
	www.dec.state.ny.us /website/dow/daminspect/glossary.html (4254 words)

	HISTORICAL DEVELOPMENT OF ARCH DAMS (Site not responding. Last check: 2007-11-05)
		The first arch dam is probably the Roman dam at Glanum [7], built during the first century BC to supply water to the Roman town (Table 1).
		The Roman dam was rediscovered in 1763 by Esprit CALVET (BENOIT 1935, GOBLOT 1967).
		The zenith of stone masonry dam construction was the 1850-1900 period and the construction techniques were well documented [43].
	traianus.rediris.es /textos/archdams_en.htm (7491 words)

	Alabama Water Quality Information System - Glossary Results
		General types of dams include: [1] Arch Dam — Curved masonry or concrete dam, convex in shape upstream, that depends on arch action for its stability; the load or water pressure is transferred by the arch to the Abutments.
		[7] Inflatable Dam — A dam constructed of heavy-duty rubber or similar material and inflated with air or water and used for small-scale impoundment of flood flows or as flashboards for regulating the overflow of larger dams.
		[8] Masonry Dam — A dam constructed mainly of stone, brick, or concrete blocks that may or may not be joined with mortar.
	www.aces.edu /waterquality/glossary/glossary_results.php3?rowid=1114 (407 words)

	Watershed moment \| The San Diego Union-Tribune
		It was once the tallest masonry arch dam in the United States and is one of 15 dams worldwide that have been designated historic.
		Construction of the original dam began in November 1886 and was the dream of land mogul and National City founder Frank Kimball.
		A plaque at a site near the water treatment plant overlooking the dam details its historic status and some facts about the dam, such as its age, height and the impressive engineering feat the dam was when it was built.
	www.signonsandiego.com /uniontrib/20060407/news_7m7dam.html (634 words)

	Dam Location Found
		The dam had been erroeneously identified as "Hoover Dam," but as you can see, this is most definitely not that famous structure.
		Klinger discovered from Larry Stephens, the Executive Director of the United States Society on Dams, that the vignette represents the Theodore Roosevelt Dam on the Salt River near Globe, AZ.
		The original masonry dam was encased in poured concrete and raised in height by 70'.
	www.coxrail.com /dam.htm (323 words)

	Kensico Dam Rehabilitation Project Begins (Site not responding. Last check: 2007-11-05)
		The closure is to begin on Thursday, July 7, and was scheduled to allow access to the road during the July 4 th holiday weekend.
		The Kensico Dam was completed in 1915 and created the Kensico Reservoir, which holds 30 billion gallons of water and is a vital part of the New York City water system.
		The masonry dam has a crest length of 1,843 feet and a maximum height of 307 feet from the lowest point in the foundation to the surface of the roadway.
	www.nyc.gov /html/dep/html/press/05-31pr.html (308 words)

	Ohio Lowhead Dam Removal Case Study; Jacoby Road Dam
		The dam removal was funded through the Ohio Scenic Rivers License Plate program.
		The dam was also an impediment to the upstream migration of fish and bi-valve mollusks.
		It was also a cost effective solution to a failing dam and an innovative use of license plate funds.
	www.dnr.state.oh.us /water/dsafety/lowhead_dams/case_study_jacoby.htm (403 words)

	The Croton Dam (Site not responding. Last check: 2007-11-05)
		Heavy rain and snowfalls caused the earth and masonry dam to slide, with devastating effect.
		The New Croton Dam began construction in 1892 and was completed on New Years Day 1907, after a series of engineering and labor problems.
		The Croton Dam is located on Route 129, off of Route 9A, slightly north of the village.
	users.bestweb.net /~mcpetitt/dam.htm (255 words)

	Dam - Wikimedia Commons
		en: A dam is a barrier across flowing water that obstructs, directs or retards the flow, often creating a reservoir, lake or impoundment.
		Arch dam on the Manavgat River in Turkey (the upper dam).
		Cleveland Dam from the front, North Vancouver, BC.
	commons.wikimedia.org /?title=Dam (125 words)

	Roosevelt Lake and Dam (Site not responding. Last check: 2007-11-05)
		Tonto National Forest surrounds the monument and offers trails, back roads, camping, hunting, boating and fishing on Roosevelt Lake, and a visitor center with exhibits.
		The lake and dam provide electrical power and water for irrigation and recreation.
		Once the world's tallest masonry dam, Roosevelt Dam is named after President Theodore Roosevelt, who was instrumental in approval of the Federal Reclamation Act in 1902, and who dedicated the dam in March, 1911.
	www.nps.gov /tont/culture/roosevelt.htm (180 words)

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