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<br />HOW MUCH? <br /> <br /> <br />Building the Dam <br />and Bridge, 1 956-64 <br /> <br />Shopln." Ih. <br />damail., 1957 <br /> <br /> <br />HOW LONG? <br /> <br />HOW BIG? <br /> <br />EXCAVATION (To prepare dnmllite and power- <br />plant): <br />Tol'JI 5,509,484 cubic yaros 01 rock and IJOnd, lnc!ud(nq: <br />18,000 feoel of tunnels, <br />127 I_I (maximum) below orlqmal rlv..r channel, <br /> <br />DAM AND POWERPLANT (The materials): <br />592,000 lOllS of cement 02,595,745 IlOCU), <br />204,360 Ions of potWlan. <br />9,502,000 lona 01 rock and lKlIId (conc~le oqqraqate.) <br /> <br />GLEN CANYON BRIDGE (The world's highest <br />steel arch bTidge): <br /> <br />H"lqhl ahov.. rlVM.u <br />Span 01 hrldqe arch <br />u.nqlh otd..cI:. <br />V~rhcol rile rA arch <br />Widlholroauway <br /> <br />700 feel <br />.1,0281_1 <br />1.2711eel <br />165 f....1 <br />30 feel <br /> <br />GLEN CANYON DAM (The statistics): <br /> <br />Uelqhl abova OOdrock.. ._ <br />Halqht abovO} orlqlnal river channel... u <br />Thlcknellll at laundation (01 10w".1 point) Un <br />MoJtlmurII lhicl:.nellll (01 nqhl abutment). <br />Thldne" 01 crl'st .. <br />C1""911..nqlh (arc I..nqth 01 O~I' 01 dam). <br />Volume 01 ooocl""l..; <br />Dam only <br />Powerp]onl and mUlcelloneOUI, <br />Total concrete <br /> <br />710 leel <br />.583 leel <br />.300 I,*,I <br />.__350 1....1 <br />..25 feel <br />__1.56QI~t <br /> <br />4,90] ,000 cubic yard. <br />__.469,000 cubic yards <br />5,370,000 cubic yards <br /> <br />GI.n Canyon <br />Brldo.qrow., <br />1958 <br /> <br />