sleep Allied sedlmems In many plaees, s dam a| me am a! a nvn mam mese ranges has mulled m a Inge ovoid hzshwihu lak me lnlenor nl the vangts, bul me pvmunance oi «as wa‘er depends on me pmpomon ol nuke" area m smage am mus mnsl be mm m deserls) Thm modes. and deep smnges in mum) fly (a lwld waver all ynar man lax“ snalluw muses Such dams need melul hydwloglral assessmem and engmeenng Huwaver, use oppununny |0 male sueeesslul Inshwnler slams .s gmikr n. ma mmmhms man m 0|Mr Aesen landlunns wnmver massive muses back (he told moummns (as In Colorado, Nevada, and nut Ml Aranl m 1mm loolmll dams wlll huld wallr {mm a camblnalmn ul snow mell and ram mnwlt Selllzmems and roads need |u be well on any flood path should lhey bursl. As [cw sellkmonls exusl m dram. [his is an ape“ npllull, whereas large slams in wellaldnd mas lewd m be bull! above me ensllng valley senlemems, wnh hequently disassmus emequenees m war or earthquake A gnu many mm modesl dams ale avallable la Inld sylems they range [mm narmw nxk-wflled exu valleys (0 luolhlll slams where exll waxels are led to diVusmn dams slams emplea [mshwmcr dam syslenu can be led on law-slope wadl-hkb suvmns as mey flow m me Flam». A vlgomus day hnnlmg alum vlllige sues uiua|ly mvnls many possible sleyages whuvver me ranges are aulliclemly large lo shed volumes «1 waler. These are almusr always .1 lew pemanem menmles and smams. as .l ls a characterishr n! la|d sylems ma. Hwy mm ln lug! seriu,ind havecarwspcndmgly large cuchmenh All told muumms ol sedamemary or melammphk m