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<br />00270 <br /> <br />" <br /> <br /> <br />SlriiliftS Joftn_ ......1. ....1.... ph-...piM.d 10. 1926. ._do jaot ., <br />.a'-<" .....h... f..- ....Iry diH. <br /> <br /> <br />r- <br /> <br />~ <br /> <br />T" <br />i' ''VI <br /> <br />~ <br /> <br />,-~~ <br />!j...... ., <br />___~~..r::...,;,.':!W <br />. ,........ <br />..v '.':.~ <br />~~ <br /> <br />Th. granite uhlar blocks <lve"ged .4 to 6 <br />tons wirh the 101198" mellSuri"9 128 cubic <br />inches and weighing IIpprOJlimately 11 tons. <br />At the lome, o,Hsman ....n the highes. gravity <br />.neh nOM masonry dam in the world. <br />De~ndin9 on man for 5fr."'il,h, i' is .rched <br />in a 400-feel "diu' IOf additio~1 lolIlery, <br />O"lip". numerous obstWe$ and now OUtdaTed <br />conSTrUCTion Techniques. the dam developed <br />no le.ks and wa' water.light. <br /> <br />Environment,! IISpedS of . project of this <br />magniTude were not ignored, eve" fhal m.ny <br />years .go. Native stones were used 10 blend <br />with Ihe "atvr:tl beauty of Ihe mountains, and <br />Ihe engineeti"9 was designed so m....t no <br />OYllel penelraTes the UrUCTure, Outlet works <br />are localed in Oalural, solid granite, and <br />a.rlll situaTed .IT 15, 60 and 110 feeT elevaTions <br />from the base. The tunnels, more than 500 feeT <br />long and tonC'ealed wiThin me mout'lT/lin, /Ire <br />inTerconn~ed by operaliOf\aI manways. A <br />baJance-d ....al....e- Willi designed 10 :lper/lte under <br />full re-servoir head with minimal efforT. <br /> <br />WaTer enudes over natural granite diffs and <br />boulders and plunge, 10 the ,lTeambed below, <br /> <br />When full, Ch"sman lake Ct/nTains 79,100 <br />.ere ~eeT. The suriace- area i, 875 aere-s, and <br />The- ,horeline i, 18 miles i!'\ circumfereflCe. <br />Surrou!'\ded by federal fore", with porential <br />,ources of POllUTio!'\ remOTe, the water in the <br />lake is vinually unconTaminaTed and cry,tal ct&ar <br />. _ . reflecting the- lOmelime-' plKid, ,ometi.rr>es <br />TurbulenT skies !hal e-nvelo~ the mounTains. <br /> <br />Cheesman Oam immediaTely wu hailed an <br />engineering marve-1. Today, iT S'r'mbolize-s me <br />TalenT, perseveranc;e. and dediaTion of pionNr <br />engineers in the WeST. It provided 'he fif$t <br />substantial and COnTinual onllre-am STorage of <br />raw winer for municipal u,e in me Rocky <br />Mountain WeS!. WaTer storage of Ihi, type <br />i, especially invaluable in the- semi-arid West <br />where drovghu periodically lau lor leveral <br />years_ often depleTing water svpplln. <br /> <br />Today il is nill an inte-gral parI of the complex <br />system thaT provide' waTer 10 some 900,000 <br />residents of the Denver metropoliTan area. <br />