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@Languages:	eng
@Participants:	BEN BEN Speaker, ENV ENV Environment, AUD AUD Speaker, X X Speaker, AUD2 AUD_2 Speaker
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@Media:	38, audio
@Comment:	Good Strong Dam
@Comment:	This segment is part of a tour of Hoover Dam, on the
	Nevada-Arizona border. The presentation is highly practiced. The
	main speaker also answers audience questions.
*BEN:	(.) Okay folks 0_708
	we're coming to a short stairway 708_2142
	use the handrails 2142_2970
	and be careful please . 2970_4087
*ENV:	&=FOOTSTEPS_AND_AMBIENT_CROWD_NOISE . 4087_94800
*BEN:	Okay folks 94800_95277
	let's find out where we are . 95277_96340
*BEN:	(..) We got on the elevator right here 96340_98341
	(.) came down and stood on the balcony overlooking the power plant 98341_101019
	(..) &=in down that stairway 101019_102583
	out on the power plant ramp about that far 102583_104621
	&=in then right at that yellow line . 104621_106508
*BEN:	&=in And you're now standing over the second-largest water pipe in the world 106508_110367
	&=in and it's called a penstock . 110367_112169
*BEN:	(..) More about that a little bit later . 112169_113829
*BEN:	(.) &=in The Colorado River 113829_115576
	flows in this direction . 115576_116871
*BEN:	&=in In order to build a dam here 116871_118334
	the very first thing they had to do: 118334_119995
	&=in was to get rid of that river . 119995_121498
*BEN:	(.) &=in So they came up here above where the dam was to be built 121498_124062
	&=in and drilled and blasted out 124062_125615
	four diversion tunnels . 125615_127057
*BEN:	&=in Two on either si:de 127057_128712
	&=in into the canyon wall 128712_130008
	around where the dam was to be built 130008_131566
	&=in out in the river down below . 131566_133106
*BEN:	&=in Each one of these tunnels were drilled and blasted out at fifty-six feet in diameter 133106_137059
	&=in and then lined with three feet of concrete . 137059_139037
*BEN:	(.) &=in You're now standing in one of those old diversion tunnels . 139037_141740
*BEN:	(..) &=in They then came up here 141740_143063
	and they built a cofferdam about a hundred feet high 143063_145367
	&=in to force this river into these diversion tunnels . 145367_148081
*BEN:	&=in Came back down here 148081_149225
	built the other part of that cofferda:m 149225_150932
	&=in about sixty-five feet high: 150932_152823
	&=in to keep this water from backing into the work area . 152823_155578
*BEN:	&=in They now had from he:re 155578_157284
	&=in to here where they could build a dam . 157284_159045
*BEN:	(.) &=in They pumped the water out of this area 159045_161085
	&=in and excavated down another hundred and thirty-five feet to bedrock . 161085_164614
*BEN:	(.) &=in Okay folks 164614_165550
	if you will please 165550_166210
	take a look at this picture taken during construction 166210_168142
	(.) &=in looks like a series of boxes or blocks 168142_170764
	stacked one on top of the other 170764_172160
	(.) &=in and those are wooden concrete fo:rms . 172160_174694
*BEN:	&=in Each one of those forms are exactly five feet high 174694_177381
	&=in but they did vary in area somewhat 177381_179659
	&=in because they did not build the dam right straight across the river 179659_182756
	&=in from canyon wall to canyon wa:ll 182756_184641
	&=in they built it in the form of an arc . 184641_186624
*BEN:	(..) And it's called an arch (.) gravity design dam . 186624_189457
*BEN:	&=in Where the force of the water 189457_190965
	coming down the Colorado River hits the face of the dam 190965_193414
	&=in and tends to try to drive these wingtips further into the canyon wa:ll . 193414_197085
*BEN:	(.) &=in It's a very strong design . 197085_199179
*BEN:	(..) They did build two concrete mixing plants here 199179_202265
	&=in they did pour concrete for twenty-four hours a day 202265_204764
	seven days a week 204764_205808
	&=in three hundred and sixty-five days a year . 205808_208020
*BEN:	&=in For two years 208020_209282
	(.) less (..) six days . 209282_211010
*BEN:	&=in Now every bit of that concrete came down in individual eight-cubic-yard bucketloads . 211010_215743
*BEN:	&=in Eight cubic yards of concrete into one of these forms 215743_218384
	&=in the smallest of which is twenty-two by twenty-five feet 218384_221163
	&=in only filled that form up about three or four inches deep . 221163_224279
*BEN:	(.) &=in So there goes that story you may have hea:rd 224279_226543
	&=in that there are workers buried in the concrete here . 226543_228852
*BEN:	(.) Couldn't possibly happen . 228852_230385
*BEN:	(.) &=in But what they did bury in that freshly poured concrete 230385_233313
	&=in was one-inch steel water pipe . 233313_235110
*BEN:	(.) &=in They came down here in this lower cofferda:m 235110_237513
	&=in &=lengthened and they built an i:ce plant . 237513_239354
*BEN:	(.) Capable of making a thousand tons of ice a day . 239354_242284
*BEN:	&=in They used that ice 242284_243653
	to chill the water 243653_244716
	&=in that they forced through that pipe in this newly placed concrete . 244716_247705
*BEN:	(.) &=in As concrete ha:rdens 247705_249241
	or cures as we call it 249241_250501
	&=in it produces heat . 250501_251867
*BEN:	(..) The more you can control that heat 251867_254000
	&=in the better job of curing you're going to get . 254000_256033
*BEN:	(.) &=in So they used the chilled water method 256033_257910
	of taking that cold water 257910_259011
	&=in forcing it through that pipe in that newly placed concrete 259011_261695
	&=in picking up some of that heat 261695_263338
	&=in then carrying that heat out and away . 263338_265191
*BEN:	(.) &=in They felt if they did not use a method such as this 265191_268036
	(.) that it would've taken approximately &=in one hundred and fifty years 268036_271600
	for the concrete (.) in the interior part of the dam &=in to cool down . 271600_274952
*BEN:	(.) &=in So the system did work . 274952_276454
*BEN:	(..) And then it hardened 276454_277555
	and they remove these wooden forms 277555_279138
	(.) &{l=X they &}l=X left voids . 279138_280185
*BEN:	Vertically and horizontally these forms came together 280185_282380
	&=in those voids were filled with grout . 282380_284248
*BEN:	Under high pressure . 284248_285215
*BEN:	(..) Grout being a mixture of concrete and water . 285215_287452
*BEN:	(..) &=in When this is done 287452_288601
	you have what we call a modified monolithic pour 288601_291376
	&=in or basically a solid block of concrete 291376_293568
	&=in which when completed would be six hundred and sixty feet across the base 293568_297237
	&=in fourty-five feet across the top 297237_299245
	&=in twelve hundred and fourty-four feet from wingtip to wingtip 299245_302187
	&=in seven hundred and twenty-six point four feet high . 302187_305229
*BEN:	(..) &{l=MRC Six point six million tons of concrete &}l=MRC . 305229_309063
*BEN:	(..) That's enough concrete to build a two-lane highway &=in from New York City to San Francisco . 309063_313871
*BEN:	(..) O:r 313871_314562
	put another way 314562_315313
	&=in a four-foot wide sidewalk from the North Pole to the South Pole . 315313_318459
*BEN:	(.) &=in Then they had to protect that concrete a little bit 318459_320785
	&=in the next thing they had to do then is build a couple of spillways . 320785_323728
*BEN:	&=in As you got out of your cars or your busses this afternoon 323728_326260
	you may have noticed those spillways . 326260_327816
*BEN:	&=in Here they are 327816_328543
	one on either side . 328543_329686
*BEN:	(.) &=in What they did 329686_330808
	is they came in here 330808_331507
	and they blocked these diversion tunnels off in this area through here 331507_334400
	(..) &=in closed these gates up here 334400_336328
	&=in now this yellow part is forever under water . 336328_339126
*BEN:	&=in Underneath that lake out there 339126_340500
	and completely useless . 340500_341699
*BEN:	&=in But they did incorporate 341699_343281
	into the design of the dam 343281_344791
	&=in the balance of those diversion tunnels 344791_346950
	(.) &=in using these outer two as spillway tunnels . 346950_349996
*BEN:	&=in Now these spillways were built 349996_351582
	so that the top of the spi:llway 351582_353106
	&=in is twenty-seven feet lower than the top of the dam . 353106_356066
*BEN:	(.) &=in This assures us that n- any excess water coming down the Colorado River 356066_360121
	&=in rather than overtopping the dam 360121_362260
	&=in overtops these spillways on either side 362260_364772
	&=in goes into the canyon wall 364772_366261
	around the dam 366261_367225
	&=in out in the river down below . 367225_368850
*BEN:	(.) &=in Each one of these spillways is capable of handling &=in two hundred th:ousand cubic feet per second of water . 368850_374900
*BEN:	(.) &=in That's the same amount of water that goes over Niagara Falls . 374900_377856
*BEN:	(.) &=in &{l=X Falls &}l=X three times higher than Niagara Falls does 377856_380358
	&=in time that water reaches this area down in here 380358_382653
	&=in it is flowing at between one hundred 382653_384709
	&=in and one hundred and twenty miles an hour . 384709_386764
*BEN:	(..) &=in Okay we have protected the spillways 386764_389016
	&=in now they had to get some water 389016_390548
	(.) &=in ʔuh- into the power plant . 390548_392095
*BEN:	(..) What they did is they built four intake towers . 392095_394626
*BEN:	&=in Two on either side of the &=in river 394626_396714
	on ledges above the river 396714_398037
	&=in each of those towers that you saw out there in that lake 398037_400754
	(..) are three hundred and ninety-five feet high . 400754_403271
*BEN:	(..) Each with two-eleven-by-thirty-two-foot gates in them 403271_406446
	&=in one gate near the bottom 406446_407703
	one about half way up 407703_408784
	&=in to let the water in . 408784_410212
*BEN:	&=in The water then coming into the penstocks 410212_412273
	&=in like the one we're standing over right now . 412273_414182
*BEN:	(..) &=in This penstock 414182_415438
	you can see on either side of us out here 415438_417204
	&=in is three stories high 417204_418468
	or thirty feet in diameter 418468_419879
	made of two-and-three-quarter-inch steel boilerplate . 419879_422963
*BEN:	(.) &=in Made in section twenty-two feet long . 422963_425360
*BEN:	(.) Each section weighing approximately &=in a hundred and fifty tons . 425360_429277
*BEN:	&=in Each of these twenty-two-foot sections is joined to the next section 429277_432248
	&=in using pressure pins like thi:s . 432248_434021
*BEN:	(.) &=in The water pressure in that penstock out there this afternoon 434021_436874
	&=in approximately two hundred and thirty-four pounds per square inch . 436874_440220
*BEN:	(..) &=in Okay we have the water this far 440220_442000
	now we divert that into thirteen-foot penstocks or water pipes 442000_445162
	&=in each one of em going to a turbine . 445162_446814
*BEN:	(..) &=in The force of the water turns the turbine 446814_449295
	which turns the rotor in the generator 449295_451099
	&=in and generates power . 451099_452411
*BEN:	(..) The water then coming on the tailrace 452411_454564
	we saw it up there 454564_455530
	&=in and going on downstream to be used at least (.) six more times 455530_458911
	before it reaches the Mexican border 458911_460589
	&=in to generate more power . 460589_461963
*BEN:	(.) &=in Good clean (.) reusable non-polluting source of energy . 461963_465736
*BEN:	(..) &=tsk &=in The cost of the project . 465736_468306
*BEN:	(..) A hundred and seventy-five million dollars . 468306_470889
*BEN:	(..) I say project 470889_472143
	because that includes the building of the dam 472143_474060
	&=in the building of Boulder City about seven miles up the road 474060_476854
	&=in the highway and the railway from Las Vegas out here to the dam site 476854_480302
	&=in and in southern California they built the All-American Canal 480302_483399
	&=in which takes water to the people and the crops 483399_485842
	(.) of the Imperial and Coachella Valleys . 485842_487935
*BEN:	&=in This money was borrowed on a fifty-year term at three-percent interest 487935_491323
	&=in and was paid off in fu:ll in nineteen eighty-seven . 491323_494174
*BEN:	(..) The people who worked here 494174_496063
	and they did work twenty-four hours a day 496063_497806
	&=in average twenty-four-hour work force was about thirty-five hundred men . 497806_501208
*BEN:	(.) &=in The most they had at any one time was when they were pouring concrete 501208_504748
	&=in fourty-three hundred men . 504748_506385
*BEN:	(..) &=in The laborers on the job made fifty cents an hour . 506385_509793
*BEN:	(.) &=in Highest paid man on the project was a power shovel operator 509793_513058
	&=in at a dollar and a qu:arter an hour . 513058_515007
*BEN:	(..) &=in Out of each man's paycheck 515007_516603
	the contractor did deduct each day 516603_518832
	&=in a dollar and sixty cents . 518832_520771
*BEN:	&=in Because the contractor was feeding 520771_522825
	&=in and housing the men in Boulder City 522825_524877
	&=in and taking them back and forth out here to the job site . 524877_527524
*BEN:	(..) They did have ninety-six (.) industrial deaths . 527524_531020
*BEN:	(.) The biggest single category of death was classified as falling material . 531020_534561
*BEN:	&=in Basically falling rock . 534561_536187
*BEN:	(..) But they did have some killed by explosion 536187_538607
	&=in some by drowning 538607_539777
	some by electrocution 539777_540995
	&=in and other types of accidents you might expect to have . 540995_543769
*BEN:	&=in On a job of this magnitude . 543769_545348
*BEN:	(..) They did complete the project 545348_547457
	two years ahead of schedule 547457_548651
	and under budget . 548651_549663
*BEN:	&=in Started in early nineteen thirty-one 549663_551606
	&=in completed in late nineteen thirty-five . 551606_553783
*BEN:	&=in Just twelve days short (.) of five years . 553783_556139
*BEN:	(..) &=in Do I have any questions . 556139_558082
*AUD:	(..) What's this overhead pipe here X . 558082_560585
*BEN:	&=in The overhead pipe . 560585_561630
*BEN:	&=in That's the fresh air pipe . 561630_562837
*BEN:	(.) &=in (..) In the summerti:me 562837_564928
	&=in the temperature of the air outside gets to be as high as a hundred and twenty degrees . 564928_567904
*BEN:	&=in So they bring that fresh air i:n 567904_569449
	&=in and they pass that fresh air over a sump at the base of the dam 569449_572377
	&=in the water in that sump is a constant fifty-three degrees . 572377_575148
*BEN:	&=in It cools that air down to between sixty-eight and seventy-two degrees 575148_578530
	&=in then they force it back throughout the dam . 578530_580516
*BEN:	&=in So it's ʔair-conditioning without refrigeration . 580516_582699
*BEN:	Like a big evaporative cooler or swamp cooler . 582699_584650
*BEN:	(..) Any other questions . 584650_586590
*BEN:	(..) Yes . 586590_587344
*AUD:	(..) U:h 587344_588612
	during the uh (..) earthquake this morning 588612_591056
	do you have any sensors down here 591056_592275
	that (.) measure any kind of movement 592275_594004
	o:f (..) str⌈uctur⌉:es . 594004_595885
*BEN:	            ⌊ &{l=X Right &}l=X ⌋ . 595186_595574
*BEN:	(..) Yes . 595885_596524
*BEN:	(.) W- v- we have several things . 596524_597836
*BEN:	(.) First place we have three seismographs throughout the dam . 597836_600112
*BEN:	&=in We recorded those 600112_601070
	but nobody down here felt em . 601070_602219
*BEN:	&=in But we do have sensors 602219_603664
	built right into the concrete 603664_604786
	&=in any movement that concrete makes 604786_606431
	(.) is measured and recorded . 606431_607860
*BEN:	(..) And they had very little of it this morning . 607860_609850
*BEN:	Very little . 609850_610593
*BEN:	(..) Any other questions . 610593_612879
*AUD:	(..) How far are you sending electricity . 612879_614699
*AUD:	California ? 614699_615337
*BEN:	(.) Okay . 615337_615836
*BEN:	(.) Fifty-six percent of our power goes to southern California 615836_618470
	&=in twenty-five percent of it stays in Nevada 618470_620321
	&=in nineteen percent of it goes to Arizona . 620321_622490
*BEN:	&=in What the government did 622490_623682
	is they got together the delegates from those three states in nineteen thirty . 623682_626909
*BEN:	&=in To allocate the power that would be generated here when this dam was completed . 626909_630226
*BEN:	(.) &=in California was growing very fast at that time 630226_632697
	so they asked for and got most of the power . 632697_634359
*BEN:	(.) &=in But by the same token 634359_635872
	Las Vegas 635872_636405
	about thirty-five miles up the road here 636405_638021
	&=in at that time 638021_639192
	&=in was nothing but a watering stop on the railroad . 639192_641474
*BEN:	&=in No hotels 641474_642504
	no casinos 642504_643396
	&=in we asked Las Vegas to take five percent of the power we could produce here 643396_647165
	&=in and they agreed to do that . 647165_648466
*BEN:	(..) But that's all they get today . 648466_650096
*BEN:	&=in Because that contract is good through the year two-th:ousand and seventeen . 650096_653777
*BEN:	(.) &=in So all those lights . 653777_655098
*BEN:	You see burning up there in Las Vegas 655098_656652
	&=in comes from power from steam plants 656652_658674
	&=in owned and operated by Nevada Power Company 658674_660913
	&=in using fossil fue:l . 660913_662480
*BEN:	They get very little of &{l=X our &}l=X hydroelectric power . 662480_664520
*BEN:	(.) &=in Okay folks 664520_665284
	you can follow me now 665284_665896
	I'm gonna lead us out of here . 665896_666791
*BEN:	(..) &=THROAT 666791_669939
	(..) O:kay 669939_673914
	here we go folks . 673914_674692
*ENV:	&=FOOTSTEPS_AND_AMBIENT_CROWD_NOISE . 674692_691867
*AUD:	&{l=X Quite amazing &}l=X . 691867_692620
*BEN:	(..) Y- yes it's a fantastic job they did down here . 692620_695470
*AUD:	Yeah . 695470_695988
*ENV:	&=FOOTSTEPS_AND_AMBIENT_CROWD_NOISE . 695988_716352
*AUD:	About how many people are employed here . 716352_717837
*AUD:	Now . 717837_718290
*BEN:	(..) Right now there's about two hundred . 718290_720027
*BEN:	(.) &=in That includes the security people 720027_721952
	the guide force 721952_722579
	the nursing staff 722579_723415
	&=in the people that (.) run the computer room 723415_725709
	the office force 725709_726450
	as well as the people that work on the dam . 726450_727838
*BEN:	&=in And that's a twenty-four-hour figure . 727838_729511
*BEN:	&=in But that figure is becoming smaller every year 729511_732055
	&=in because every year we are becoming more highly computerized . 732055_734900
*BEN:	(..) &=THROAT 734900_736578
	(..) &{l=F Okay folks 736578_739244
	there's a tour group coming in 739244_740457
	stay to your right please 740457_741533
	stay to your right &}l=F . 741533_742369
*ENV:	&=AMBIENT_CROWD_NOISE . 742369_756725
*BEN:	&{l=F Stay to your right folks 756725_757699
	tour group coming out &}l=F . 757699_758622
*ENV:	&=CROWD_AND_MACHINE_NOISE . 758622_784850
*BEN:	(.) Okay 784850_785125
	if you would 785125_785472
	right up this stairway 785472_786179
	when you get on the balcony 786179_787005
	wait for me on the blue couches on the balcony please . 787005_788896
*BEN:	(..) Anybody needs the elevator it's available . 788896_792231
*ENV:	&=CROWD_AND_MACHINE_NOISE . 792231_804481
*BEN:	Anybody that needs the elevator it's &{l=X is &}l=X available . 804481_806287
*ENV:	&=CROWD_AND_MACHINE_NOISE . 806287_826072
*BEN:	(..) Come on . 826072_826495
*ENV:	&=CROWD_AND_MACHINE_NOISE . 826495_845020
*BEN:	&{l=X Come on then &}l=X . 845020_845559
*BEN:	(..) Up the stairway if you can X . 845559_850932
*BEN:	(.) &{l=P &{l=X Up the stairway . 850932_852085
*BEN:	That's +/. 852085_852650
*BEN:	(..) Up the stairs &}l=X &}l=P . 852650_855640
*BEN:	(..) O:kay: 855640_861825
	here we go . 861825_862522
*BEN:	(..) &{l=VOX Hi &}l=VOX . 862522_868557
*AUD:	(..) That was the (.) turbine over here 868557_876611
	off to the si:de +... 876611_877331
*BEN:	Yeah 877331_877560
	that's the turbine runner . 877560_878230
*BEN:	You bet . 878230_878583
*BEN:	(..) That's a (..) computer design made of stainless steel 878583_881693
	&=in it's designed in such a way 881693_883249
	&=in there's one of em running at a hundred and eighty RPM 883249_885495
	(.) it actually l:ifts that eight hundred tons up a quarter of an inch 885495_888255
	&{l=X for &}l=X your main thrust bearing is the very top of this (.) u:h structure right down here . 888255_892565
*BEN:	(..) This is the rotor . 892565_893770
*BEN:	(..) The rotor and the (.) &=in runner 893770_897217
	(.) have come out of our A-Seven generator 897217_899226
	what happened we lost a water seal down there . 899226_901050
*BEN:	&=in So we had to pull those out to fix that water seal 901050_903231
	&=in they'll be replaced within a couple of weeks now . 903231_905412
*AUD:	(.) &{l=X Oh I see &}l=X . 905412_906237
*BEN:	(.) &=in That &=in rotor in that part of the shaft weighs five hundred and eighty tons . 906237_909707
*AUD:	&=WHISTLE . 909707_910301
*ENV:	&=AMBIENT_NOISE . 910301_935014
*BEN:	&{l=FF Okay folks 935014_935764
	if you will please 935764_936418
	follow me now &}l=FF . 936418_937236
*ENV:	&=CROWD_NOISE_AND_FOOTSTEPS . 937236_1035801
*X:	(.) Hey ⌈ X ⌉ . 1035801_1036527
*BEN:	        ⌊ H:ow⌋: you doing ? 1036217_1037113
*X:	Good . 1037113_1037603
*ENV:	&=CROWD_NOISE . 1037603_1049257
*BEN:	Okay folks 1049257_1049700
	while we're waiting for the elevators 1049700_1050566
	does anybody have any questions . 1050566_1051884
*AUD:	(..) How long have you been doing (.) these ⌈ tours ⌉ . 1051884_1053848
*BEN:	                                            ⌊ About ⌋ five years . 1053548_1054469
*BEN:	(.) About five years . 1054469_1055390
*BEN:	&=in I've retired twice 1055390_1057011
	can't stand &{l=X retirement so &}l=X 1057011_1057895
	come back to work at a fun job . 1057895_1059013
*AUD:	&{l=X Oh [% laugh] &}l=X . 1059013_1059483
*BEN:	(..) Anybody have any questions . 1059483_1063091
*AUD:	(..) Yeah 1063091_1065987
	(.) Ben 1065987_1066489
	(..) water comes down the center of the 1066489_1068298
	(.) where your shaft is 1068298_1069478
	(.) goes out the turbine . 1069478_1070622
*BEN:	(..) No . 1070622_1071474
*BEN:	Goes around the dam . 1071474_1072324
*BEN:	Water comes into those towers 1072324_1073503
	(.) goes around the dam 1073503_1074585
	comes in from the side . 1074585_1075681
*AUD:	Each individual turbine ? 1075681_1076873
*BEN:	(..) Yeah ? 1076873_1077838
*AUD:	The water drops in the center where the shaft goes in 1077838_1080174
	then ⌈ goes down ⌉ . 1080174_1080831
*BEN:	     ⌊ No no ⌋ . 1080367_1080831
*BEN:	(.) No . 1080831_1081318
*BEN:	(.) It comes into what they c- +/. 1081318_1082437
*BEN:	It comes in that thirteen-foot pipe 1082437_1083838
	goes into what they call 1083838_1084740
	&=in the (..) area of the wicket gate 1084740_1086976
	(..) and there +/. 1086976_1087727
*BEN:	And there's a (.) pipe around that wicket gate 1087727_1089640
	&=in a:nd that pipe goes from a thirteen-foot diameter 1089640_1092269
	down to a three-foot diameter 1092269_1093485
	goes around that wicket gate ? 1093485_1094732
*BEN:	(..) ⌈ Okay . 1094732_1095340
*AUD:	     ⌊ Right ⌋ ? 1095144_1095620
*BEN:	&=in ⌉ It picks up speed . 1095340_1096445
*BEN:	&=in By the time it enters that ap- +/. 1096445_1097839
*BEN:	ʔuh goes out that aperture 1097839_1098688
	that three-foot aperture 1098688_1099442
	it's traveling at fifty-seven miles an hour . 1099442_1101163
*BEN:	(.) &=in But that's what drives that big turbine . 1101163_1103023
*BEN:	&=in It goes arou:nd the shaft . 1103023_1104752
*BEN:	It doesn't go into the shaft area at all . 1104752_1106483
*BEN:	(..) The wicket gate . 1106483_1108521
*BEN:	ʔuh: All the water goes in through the wicket gate . 1108521_1110160
*AUD:	(..) It's coming in (.) underneath . 1110160_1112528
*BEN:	Yeah . 1112528_1112759
*BEN:	&=in ⌈ The wick- +... 1112759_1113330
*AUD:	     ⌊ Perpendicular ⌋ . 1113043_1114039
*BEN:	ʔuh Th- ʔuh well ⌉ . 1113330_1114039
*AUD:	⌈2 perpendicular to the &{l=X shaft &}l=X ⌉2 . 1114039_1115374
*BEN:	⌊2 &=in ʔand ʔuh ʔuh: yeah ⌋2 . 1114039_1115374
*AUD:	⌈3 The generator's sitting on top ⌉3 . 1115374_1116861
*BEN:	⌊3 ʔA- ʔi- okay . 1115374_1116085
*BEN:	(.) The shaft is like ⌋3 this 1116085_1117081
	and ⌈4 water's ⌉4 coming in like thi⌈5:s . 1117081_1118358
*AUD:	    ⌊4 Right ⌋4 . 1117194_1117481
*AUD:	                                    ⌊5 That's what I thought . 1118165_1118715
*BEN:	&=in And then it goes ar⌉5ou:nd like this . 1118358_1119952
*AUD:	Oh yeah ⌋5 . 1118715_1119184
*BEN:	⌈6 &=in and then out ⌉6 . 1119952_1120807
*AUD:	⌊6 Now that thing we saw ⌋6 down laying that- 1119952_1121502
	uh 1121502_1121772
	alongsi⌈:de ⌉ . 1121772_1122516
*BEN:	       ⌊ Okay ⌋ . 1122336_1122516
*AUD:	with the uh 1122516_1123179
	⌈ looked like a ⌉ +... 1123179_1123566
*BEN:	⌊ That's a ⌋ 1123179_1123566
	ʔuh: that's a r- turbine runner . 1123566_1124833
*BEN:	We call . 1124833_1125307
*BEN:	⌈ Turbine runner ⌉ . 1125307_1126070
*AUD:	⌊ That- and that's ⌋ 1125307_1126070
	is that is that 1126070_1126640
	(.) kicked up on the side like that 1126640_1128138
	the water . 1128138_1128709
*BEN:	(..) No 1128709_1129278
	(.) ⌈ it just (.) lays ⌉ (.) ʔit +... 1129278_1130390
*AUD:	    ⌊ Spinning it around ⌋ ? 1129524_1130139
*BEN:	(.) Oh you mean the one d- on the floor ⌈2 down there ⌉2 ? 1130390_1131953
*AUD:	                                        ⌊2 Yeah ⌋2 yeah . 1131637_1132162
*BEN:	No ⌈3 that's lay⌉3ing flat like this . 1132162_1133422
*AUD:	   ⌊3 X ⌋3 . 1132358_1132682
*BEN:	and the water drives that around this way ⌈4 like this . 1133422_1135073
*AUD:	                                          ⌊4 &{l=X Oh you're right &}l=X XX ⌋4 . 1134761_1135574
*BEN:	and drives the tur⌉4bine up there yeah . 1135073_1136194
*AUD:	And that's down inside the uh 1136194_1137699
	(.) ⌈ in the turbine ⌉ . 1137699_1138556
*BEN:	    ⌊ That's way down ⌋ +/. 1137844_1138556
*BEN:	Yeah . 1138556_1138804
*BEN:	⌈ Way down in the turbine . 1138804_1139760
*AUD:	⌊ So it's in the turbine . 1138804_1139615
*AUD:	And that's the ⌋ . 1139615_1140025
*BEN:	Unhunh ⌉ 1139760_1140025
	⌈2 yeah ⌉2 . 1140025_1140223
*AUD:	⌊2 that's ⌋2 what's generat⌈3ing . 1140025_1140770
*BEN:	                           ⌊3 Yeah ⌋3 . 1140653_1140990
*AUD:	that's ⌉3 what's turning the wheel . 1140770_1141900
*BEN:	Right . 1141900_1142120
*BEN:	(..) Right . 1142120_1142575
*AUD:	We were right on that . 1142575_1143225
*BEN:	Right . 1143225_1143473
*BEN:	(..) Okay folks 1143473_1145655
	step right in the elevator please 1145655_1146927
	(.) right on in 1146927_1147649
	(..) step right in the elevator . 1147649_1150035
*BEN:	(..) &{l=P Three 1150035_1152811
	four 1152811_1153275
	five 1153275_1153739
	six 1153739_1154315
	seven 1154315_1154852
	eight 1154852_1155217
	nine 1155217_1155684
	ten 1155684_1156202
	eleven 1156202_1156763
	twelve . 1156763_1157261
*BEN:	Thirteen fourteen fifteen sixteen 1157261_1159665
	(..) nineteen 1159665_1161933
	(.) twenty &}l=P 1161933_1162663
	&=in alright 1162663_1163233
	are you with them ? 1163233_1163949
*BEN:	(..) &{l=P Okay &}l=P . 1163949_1165144
*BEN:	(..) Okay I saved room for you . 1165144_1168977
*AUD:	(.) All right 1168977_1169476
	thanks a lot ⌈ &{l=X man &}l=X ⌉ . 1169476_1170071
*BEN:	             ⌊ You ⌋ bet . 1169905_1170294
*BEN:	(..) Folks this does conclude your tour of the dam 1170294_1176186
	(..) hope you enjoyed it as much as I &{l=X enjoying have &}l=X you 1176186_1178043
	come back and see us again . 1178043_1179023
*BEN:	&=in Have any questions on the way up 1179023_1180374
	&=in ask Norm . 1180374_1181120
*BEN:	&=in Bye-bye folks . 1181120_1182122
*BEN:	(..) Okay 1182122_1185848
	any more questions folks . 1185848_1187033
*AUD:	(.) What's the (.) story with this tile . 1187033_1188782
*AUD:	(..) Wasn't this created by somebody ? 1188782_1191029
*BEN:	Yeah . 1191029_1191343
*BEN:	(..) Folks 1191343_1191951
	&=in the dam was built as a tourist attraction 1191951_1194009
	as well as being very functional 1194009_1195223
	&=in this terrazzo flooring you see 1195223_1196911
	terrazzo is marble chips put down in concrete 1196911_1199221
	&=in ground down and polished 1199221_1200618
	&=in this terrazzo flooring was put in here by one It:alian family 1200618_1203790
	by the name of Martina . 1203790_1204923
*BEN:	(..) &=in Okay there's two and three-quarter acres of this uh &=in t- uh terrazzo flooring in the floor 1204923_1209439
	&=in but the designs you see 1209439_1210986
	&=in is what that Italian family saw ʔuh: 1210986_1213202
	&=in and interpretated from &=in southwest Indian blankets and pottery . 1213202_1216622
*BEN:	That's where the designs came from . 1216622_1217987
*BEN:	(..) &=in Any other questions . 1217987_1220647
*AUD:	(..) Are there just two elevators down 1220647_1223194
	from these two shafts 1223194_1224151
	that'll take you to ⌈ XX ⌉ +... 1224151_1225272
*BEN:	                    ⌊ That's right ⌋ . 1224669_1225272
*BEN:	(.) Two elevators down . 1225272_1226171
*BEN:	Mhm ? 1226171_1226498
*AUD:	The rest of it's just solid . 1226498_1227554
*BEN:	Right . 1227554_1227933
*BEN:	(..) &=in Well there are 1227933_1229428
	&=in there are two miles of ʔuh: tunnels going this way across the dam . 1229428_1232428
*BEN:	&=in They have a pipe gallery 1232428_1233848
	&=in they have a drainage gallery 1233848_1235047
	they have a +/. 1235047_1235446
*BEN:	(..) a uh: (..) cable gallery 1235446_1237658
	&=in and they have an instrumentation gallery . 1237658_1239447
*BEN:	(..) And all those things are +/. 1239447_1240641
*BEN:	&=in They (.) measure constantly the condition of the dam with that instrumentation gallery . 1240641_1244332
*AUD:	(..) Y'all open seven days a week ? 1244332_1246508
*BEN:	(..) Yeah . 1246508_1247288
*BEN:	Mhm ? 1247288_1247691
*AUD:	(..) Is it unusual to- 1247691_1248778
	(.) to do the generator (.) uh (..) room (.) floor ? 1248778_1251376
*AUD:	In something like this ? 1251376_1252082
*AUD:	There's just +... 1252082_1252509
*BEN:	Yeah . 1252509_1252839
*BEN:	It it's (.) in fact 1252839_1253697
	it was built during the depression 1253697_1254954
	&=in ⌈ and they wanted to make it a tourist attra- ⌉ +... 1254954_1256648
*AUD:	     ⌊ &{l=X Make it make it worth talking &}l=X ⌋ . 1255357_1256648
*BEN:	It was at that time the largest dam in the world 1256648_1258470
	(..) they wanted to make it very nice 1258470_1259932
	yeah 1259932_1260128
	it's unusual . 1260128_1260830
*BEN:	(..) ⌈ Usually ⌉ you just have con⌈2crete deck⌉2s . 1260830_1262714
*AUD:	     ⌊ Yeah ⌋ . 1261189_1261598
*AUD:	                                  ⌊2 I would ⌋2 +/. 1262174_1262537
*AUD:	(.) ⌈3 Yeah ⌉3 . 1262714_1263158
*BEN:	    ⌊3 Yeah ⌋3 . 1262825_1263158
*BEN:	(..) Yeah . 1263148_1263768
*BEN:	(..) &=in (.) Any other questions folks . 1263768_1266845
*BEN:	(..) Yes . 1266845_1267820
*AUD:	(..) What are the chances (.) of a leak ? 1267820_1270809
*BEN:	(..) Hm ? 1270809_1271522
*AUD2:	&=laugh ⌈ &=laugh &=laugh ⌉ . 1271522_1272150
*AUD:	        ⌊ What are the ⌋ chances of a leak . 1271792_1273679
*BEN:	&=in &{l=X Well &}l=X 1273679_1274222
	(.) ʔuh it leaks all the time . 1274222_1275433
*BEN:	&=in You see concrete's porous . 1275433_1277075
*BEN:	&=in And because concrete's porous 1277075_1278362
	there's water coming through at all times . 1278362_1279888
*BEN:	&=in But that's good . 1279888_1281007
*BEN:	&=in Because if &{l=X there're &}l=X no moisture in concrete 1281007_1283091
	&=in it dries out 1283091_1284067
	an:d (.) spalls and chips 1284067_1285190
	an:d (.) turns to powder . 1285190_1286337
*BEN:	&=in Wouldn't make a very good dam . 1286337_1287834
*BEN:	&=in So as long as that lake is back there 1287834_1289450
	forcing that water through the concrete at all times 1289450_1291713
	&=in it keeps that concrete in a stage of what we call being green . 1291713_1294461
*BEN:	&=in Green concrete's very strong . 1294461_1296504
*BEN:	&=in So we have a good strong dam . 1296504_1298006
*AUD:	(..) Say Ben . 1298006_1299347
*BEN:	(.) ⌈ Yes ⌉ . 1299347_1299828
*AUD:	    ⌊ what's going ⌋ on up on the hill up here 1299565_1301000
	&{l=X don't ⌈2 think it's uh &}l=X ⌉2 +... 1301000_1301819
*BEN:	            ⌊2 Okay . 1301222_1301415
*BEN:	(.) That's a ⌋2 five-story parking garage 1301415_1303210
	&=in and the new building is a new visitors center . 1303210_1305125
*BEN:	(.) &=in The five-story parking garage will hold four-hundred and fifty cars . 1305125_1308047
*BEN:	&=in Okay 1308047_1308797
	the new f- &=in visitors center 1308797_1310101
	&=in will have (..) three revolving theaters in it 1310101_1312483
	(..) it'll have a (.) seating area for people going on tour 1312483_1315229
	it'll have a museum 1315229_1316122
	&=in the top deck of that building will be an observation platform 1316122_1319005
	&=in we can look back at the dam in one direction 1319005_1320872
	downstream in the other . 1320872_1321761
*BEN:	&=in Now 1321761_1322510
	when that's all done 1322510_1323352
	&=in they hope to be able to f:igure 1323352_1324874
	(..) to handle (.) between one point two and one point three million people a year . 1324874_1328386
*BEN:	&=in Last year we had 1328386_1329672
	(.) seven hundred and twenty-nine thousand eight hundred and eighty-nine people go through the dam 1329672_1333226
	&=in but we had to turn people away 1333226_1334527
	almost every night . 1334527_1335455
*BEN:	(..) Just not enough time in the day 1335455_1336925
	to get everybody through the dam that would like to see it . 1336925_1338492
*AUD:	(.) Hmm . 1338492_1338951
*AUD:	(..) Will it have any slot machines in it ? 1338951_1340707
*BEN:	&=in No 1340707_1341401
	⌈ but it'd be a ⌉ good idea . 1341401_1342109
*AUD:	⌊ &=laugh &=laugh ⌋ . 1341401_1341675
*BEN:	wouldn't it . 1342109_1342467
*AUD:	⌈ &=laugh &=in ⌉ . 1342467_1343242
*BEN:	⌊ &=in Pay ⌋ for this ⌈2 place⌉2⌈3: ⌉3 . 1342467_1343881
*AUD2:	                      ⌊2 &=laugh ⌋2 ⌊3 &=laugh ⌋3 ⌈4 &=laugh &=laugh ⌉4 . 1343489_1344358
*AUD:	                                ⌊3 When's ⌋3      ⌊4 comple⌋4tion on that (..) parking garage . 1343753_1345811
*BEN:	(..) They figure between fifteen and seventeen months . 1345811_1348363
*BEN:	(..) Yeah . 1348363_1348986
*BEN:	(..) Okay folks 1348986_1350246
	step right in the elevator please . 1350246_1351432
*BEN:	(..) &=in R:ight on in . 1351432_1353263
*ENV:	&=CROWD_NOISE . 1353263_1360792
*X:	(..) &{l=VOX Everyone please fa⌈ce the front of the car &}l=VOX ⌉ . 1360792_1363552
*AUD:	                               ⌊ It's gonna be seventeen m⌋ore months ? 1362405_1364195
*AUD:	(..) Seventeen more months ? 1364195_1365359
*X:	(..) &{l=VOX Everyone face the front of the car please &}l=VOX . 1365359_1368906
*BEN:	(..) Ri:ght to ⌈ there ⌉ . 1368906_1374209
*X:	               ⌊ &{l=VOX Front of the ⌋ car please &}l=VOX . 1373907_1375459
*AUD:	(..) Have they ever had to use the spillway ? 1375459_1377755
*BEN:	Just a minute . 1377755_1378151
*BEN:	(..) Okay folks 1378151_1381730
	this does conclude your tour of the dam 1381730_1383102
	I hope you enjoyed it as much as I enjoyed having you 1383102_1384684
	&=in come back and see us again 1384684_1385794
	have any questions on the way up 1385794_1387035
	&=in ask Norm . 1387035_1387886
*BEN:	(.) Bye-bye folks . 1387886_1388878
*AUD:	Thanks Ben . 1388878_1389245
*AUD2:	(..) Have they ever had to use the spillway ? 1389245_1392091
*BEN:	Okay . 1392091_1392396
*BEN:	(.) Folks 1392396_1392841
	the question is 1392841_1393545
	did they ever have to use the spillway . 1393545_1394985
*BEN:	(.) &=in Yes . 1394985_1395884
*BEN:	Just once in the history of the dam 1395884_1397098
	and that was nineteen eighty-three . 1397098_1398382
*BEN:	(..) &=in What happened that year 1398382_1400016
	&=in is they had a very heavy snowpack in the Rocky Mountains 1400016_1402671
	&=in (.) and that was followed by rain and hot weather 1402671_1404981
	&=in which created a flooding condition . 1404981_1407106
*BEN:	&=in We had more water coming down the Colorado River system 1407106_1410135
	&=in than they could put through the power plant . 1410135_1411839
*BEN:	(.) &=in Every reservoir in the Colorado River system was full to overflowing that year . 1411839_1415654
*BEN:	(.) &=in On July second 1415654_1416957
	(..) water overtopped our spillways out here . 1416957_1419065
*BEN:	&=in Six days later 1419065_1420143
	it was going over four and a half feet high . 1420143_1422053
*BEN:	&=in And that went on for sixty-six days . 1422053_1424389
*BEN:	&=in At the end of that time there was no damage to the dam 1424389_1427150
	&=in or to the power plant 1427150_1428385
	&=in but further on downstream where people had built in the floodplain 1428385_1431491
	&=in they did have thirty million dollars worth of damage 1431491_1433955
	&=in but no loss of life . 1433955_1435261
*BEN:	(..) But that flood's what left that white line around the lake out there . 1435261_1438172
*BEN:	(..) That white line indicates it was going over the spillways 1438172_1441268
	&=in four and a half feet above floodstage . 1441268_1443383
*BEN:	&=in It gives a false impression 1443383_1444828
	and makes it look like the lake of the level is low . 1444828_1446745
*BEN:	Or level the lake (.) of the low . 1446745_1448040
*BEN:	(.) &=in Actually we're eight feet above normal 1448040_1450172
	for this time of year . 1450172_1450999
*AUD:	(..) Wow . 1450999_1452157
*BEN:	(.) &=in Yeah we had a very good snowpack last year . 1452157_1454282
*BEN:	(..) . 1454282_1455974
@End
