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<br />Table 1. (Cont.) <br /> MAJOR SOCIAL AND ECONOMIC <br />POTENTIAL LANDSI1DE IMPACTS ELEMENTS IMPACTED <br /> ;O~ ~ ~~ <br /> () '1'~ <br /> <~ ~~~ <br /> ~ ~ <br /> RAPID DESTRUCTION OFlRANSPORTATION CORRIDORS . . . . <br /> If roads, railroads, or bridges are destroyed quickly, effects in- <br /> clude all of those listed above for those facilities, plus possible <br /> loss of life if destruction occurs during use. <br /> DAMAGE TO UNDERGROUND AND SURFACE MINING <br /> FACILITIES . . . . <br /> Ground surface dislocation can impact both surface and sub- <br />~ surface mining operations by 1) affecting the working surface, <br />~ 2) blocking entry ways, 3) disrupting haulage roads, adits, air <br />U <br />~ shafts, etc., 4) collapsing the mine, and 5) causing cessation <br />of supply of needed mineral fuels. <br />.... <br />roo UTILITY DAMAGE (SEWER, WATER, POWER, <br />.... <br />z . <br />" GAS PIPELINES) . . . <br />.... <br />rJl Utility damage can cause 1) loss of life due to the explosion of <br />" gas lines. 2) loss of service, 3) loss of reveilUe, 4) costs . <br />Z <br />.... of repair, and 5) potential health risks resulting from sewage <br />~ <br />system breaks. <br />~ <br />U GROUND SURFACE AND STRUCTURE DISLOCATION! <br />Z DISRUPI'ION . . . . <br />.... <br />~ <br /> Such dislocation can cause 1) utility damage, 2) crop damage, <br /> 3) irrigation ditch damage, 4) road blockage,S) bridge <br /> destruction, 6) loss of life, 7) loss of service, 8) loss of <br /> revenue, 9) toxic waste hazards if it involves chemical storage <br /> tanks, or fire! explosion hazards if it involves gas or liquid <br /> energy fuels, and 10) damage and destruction of buildings <br /> (residential and commercial). <br /> DEBRIS BURIAL OF STRUCTURES . . . . <br /> Structure burial is usually the result of debris flows, earth- <br /> flows, or translational landslides. These events can strike <br /> either with great speed and force, or by slow engulfment. Can <br /> cause loss of life, property, services, and revenue. <br /> LANDSLIDE DAM WITH BACKWATER FLOODING . . . . <br /> The formation of an earth dam by landsliding can result in 1) <br /> upstream flooding; lake formation inundating valuable crop, <br /> range, or recreation areas; structure flooding, 2) blocking of <br /> transportation routes, thus affecting commerce, tourism, and <br /> emergency vehicle access, 3) loss of revenue due to <br /> decreased tourism, impeded access to local businesses, and <br /> diminished tax revenues from flooded lands, and 4) interrup- <br />u tion of communication and utility services. <br />.... <br />= <br />~ FAILURE OF A LANDSLIDE DAM WITH <br />0 DOWNSTREAM FLOODING . . . . <br />~ <br />i A landslide dam break could result in catastrophic flooding <br />downstream with possible loss of life and extensive property <br />'<l: <br />u destruction. <br /> 19 <br /> <br />