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with some of its power needs. The dam was built in Diablo Canyon, a gorge of solid granite with vertical walls rising 160 feet (49 m) from the river bed, yet were less than 100 feet (30 m) apart. Construction began in 1927, and was completed in 1930. The dam began generating electricity in
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214:. At the time it was completed, Diablo Dam, at 389 feet (119 m), was the tallest dam in the world. Water from the dam operates two main generators, each with a capacity of 64.5 MW.
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180° panorama from the top of Diablo Dam, Diablo Lake, Washington as seen on an early
September afternoon.
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1534:", 43 photos, 2 color transparencies, 6 measured drawings, 5 photo caption pages
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The dam and its original associated power generation infrastructure were listed on the
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Climate data for Diablo Dam, Washington (1991–2020 normals, extremes 1914–present)
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1315:"City Light Projects Harness Powerful Skagit River After Long, Hard Struggle"
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261:(WRCC) reports weather station 452157 at Diablo Dam since 1948, presently at
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1286:. National Performance of Dams Program (Stanford University). Archived from
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National
Register of Historic Places in Ross Lake National Recreation Area
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with an elevation of 891 feet (272 m). The dam is in a transitional
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1548:", 12 photos, 1 measured drawing, 2 photo caption pages
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The result was a power-generating dam that holds a reservoir known as
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1527:(HAER) documentation, filed under Newhalem, Whatcom County, WA:
62:
1452:"U.S. Climate Normals Quick Access – Station: Diablo Dam, WA"
30:
1639:
Historic
American Engineering Record in Washington (state)
1634:
Buildings and structures in
Whatcom County, Washington
1346:. Carbon Monitoring for Action (CARMA). Archived from
1201:
1454:. National Oceanic and Atmospheric Administration
1644:Hydroelectric power plants in Washington (state)
1615:
1362:"Power Generation: Skagit Project - Diablo Dam"
1507:– silent film clips of construction posted by
1598:
1541:", 4 photos, 1 photo caption page
1532:Skagit Power Development, Diablo Powerhouse
1684:Whatcom County, Washington geography stubs
1605:
1591:
1385:"Washington State Tourism Diablo Dam/Lake"
29:
1679:1930 establishments in Washington (state)
1539:Skagit Power Development, Incline Railway
1248:List of dams and reservoirs in Washington
308:) depending on summer rainfall isotherm.
1474:"NOAA Online Weather Data – NWS Seattle"
106:88,500 acre⋅ft (109,200,000 m)
1659:Energy infrastructure completed in 1936
998:Average extreme snow depth inches (cm)
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1466:
1406:"National Register Information System"
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1307:
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190:is one of three dams along the upper
116:1,103 sq mi (2,860 km)
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1546:Skagit Power Development, Diablo Dam
1525:Historic American Engineering Record
1411:National Register of Historic Places
247:National Register of Historic Places
1518:
1444:
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1167:Source 2: National Weather Service
13:
200:Skagit River Hydroelectric Project
14:
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1649:United States power company dams
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1232:
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18:Dam in Washington, United States
1432:. Western Region Climate Center
259:Western Regional Climate Center
1499:Diablo Dam, 1929-1932 (Part 1)
1430:"Washington Station Inventory"
1422:
1398:
1354:
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1:
1374:Includes construction photos.
1258:
928:Average snowfall inches (cm)
1577:. You can help Knowledge by
1573:state location article is a
7:
1197:
1174:
1068:Average precipitation days
644:Mean daily minimum °F (°C)
504:Mean daily maximum °F (°C)
10:
1700:
1624:Dams in Washington (state)
1571:Whatcom County, Washington
1556:
1509:Seattle Municipal Archives
1476:. National Weather Service
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196:Whatcom County, Washington
93:1,180 ft (360 m)
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1669:Dams on the Skagit River
1544:HAER No. WA-24-F, "
1537:HAER No. WA-24-E, "
1530:HAER No. WA-24-D, "
85:389 ft (119 m)
1629:Seattle City Light dams
1240:Renewable energy portal
151:Installed capacity
124:990 acres (400 ha)
1654:Dams completed in 1930
280:48.71417°N 121.14306°W
174:Annual generation
1416:National Park Service
714:Mean minimum °F (°C)
434:Mean maximum °F (°C)
298:mediterranean climate
67:Concrete arch-gravity
63:Type of dam
1212:United States portal
364:Record high °F (°C)
285:48.71417; -121.14306
233:48.7143°N 121.1312°W
164:Capacity factor
129:Commission date
1418:. November 2, 2013.
1322:The Concrete Herald
1115:Average snowy days
784:Record low °F (°C)
574:Daily mean °F (°C)
276: /
229: /
112:Catchment area
103:Total capacity
1284:"Diablo (WA00170)"
238:48.7143; -121.1312
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1364:. City of Seattle
1350:on March 3, 2016.
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121:Surface area
57:Dam and spillways
49:Opening date
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1290:on March 5, 2016
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1324:. June 21, 1951
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1162:Source 1: NOAA
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44:, United States
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856:precipitation
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1579:expanding it
1568:
1553:
1478:. Retrieved
1468:
1456:. Retrieved
1446:
1434:. Retrieved
1424:
1409:
1400:
1390:September 5,
1388:. Retrieved
1379:
1366:. Retrieved
1356:
1348:the original
1338:
1328:September 5,
1326:. Retrieved
1321:
1292:. Retrieved
1288:the original
1253:Skagit River
1226:Water portal
858:inches (mm)
305:
256:
209:
192:Skagit River
187:
186:
178:689,400,000
76:Skagit River
15:
1070:(≥ 0.01 in)
283: /
271:121°08′35″W
236: /
224:121°07′52″W
212:Diablo Lake
1618:Categories
1480:October 8,
1458:October 8,
1368:January 6,
1259:References
1117:(≥ 0.1 in)
268:48°42′51″N
221:48°42′51″N
188:Diablo Dam
42:Washington
24:Diablo Dam
1664:Arch dams
993:(116.66)
249:in 1989.
98:Reservoir
1505:(Part 3)
1502:(Part 2)
1344:"Diablo"
1294:March 4,
1198:See also
1175:Panorama
923:(1,965)
854:Average
779:(−11.6)
294:maritime
142:2x 64.5
138:Turbines
72:Impounds
38:Location
1513:YouTube
1436:May 18,
1018:(0.25)
948:(0.76)
774:(−7.2)
769:(−4.2)
764:(−0.1)
734:(−0.7)
729:(−3.6)
724:(−6.0)
719:(−8.1)
704:(−1.0)
684:(12.2)
679:(11.9)
654:(−0.9)
649:(−1.4)
619:(15.6)
614:(19.1)
609:(18.8)
604:(15.4)
599:(12.9)
569:(14.3)
554:(14.2)
549:(21.8)
544:(26.0)
539:(25.6)
534:(21.3)
529:(18.9)
524:(14.0)
499:(36.8)
489:(12.8)
484:(22.6)
479:(31.3)
474:(34.9)
469:(35.3)
464:(32.7)
459:(30.2)
454:(24.4)
449:(17.6)
444:(11.5)
306:Cfb/Csb
253:Climate
204:Seattle
1110:174.3
1053:(4.8)
1048:(0.0)
1043:(0.0)
1038:(0.0)
1033:(0.0)
1028:(0.0)
1023:(0.0)
983:(7.9)
978:(0.0)
973:(0.0)
968:(0.0)
963:(0.0)
958:(0.0)
953:(0.0)
918:(294)
913:(347)
908:(219)
878:(117)
873:(207)
868:(187)
863:(311)
849:(−19)
844:(−19)
839:(−15)
799:(−13)
794:(−18)
789:(−19)
759:(5.2)
754:(8.5)
749:(8.5)
744:(5.8)
739:(2.1)
709:(4.8)
699:(1.6)
694:(5.3)
689:(9.4)
674:(9.7)
669:(6.8)
664:(3.1)
659:(0.6)
639:(9.6)
634:(1.2)
629:(4.3)
624:(9.7)
594:(8.6)
589:(5.1)
584:(2.6)
579:(1.1)
564:(3.4)
559:(7.1)
519:(9.4)
514:(6.2)
509:(3.6)
494:(9.2)
439:(9.1)
320:Month
302:Köppen
207:1936.
90:Length
82:Height
1569:This
1318:(PDF)
1157:15.5
1107:19.5
1104:19.9
1101:16.6
1098:10.8
1089:12.1
1086:12.8
1083:16.5
1080:19.0
1077:15.6
1074:18.8
1063:(41)
1058:(25)
1013:(10)
1008:(20)
1003:(28)
988:(41)
943:(11)
938:(25)
933:(31)
921:77.39
916:11.57
911:13.66
903:(87)
898:(38)
893:(32)
888:(57)
883:(69)
861:12.25
834:(−8)
829:(−1)
809:(−2)
804:(−4)
429:(43)
424:(15)
419:(18)
414:(31)
409:(38)
404:(41)
399:(41)
394:(43)
389:(39)
384:(32)
379:(24)
374:(17)
369:(17)
359:Year
1575:stub
1482:2023
1460:2023
1438:2020
1392:2009
1370:2011
1330:2009
1296:2014
1154:5.1
1151:1.3
1148:0.0
1145:0.0
1142:0.0
1139:0.0
1136:0.0
1133:0.0
1130:0.1
1127:2.0
1124:2.6
1121:4.4
1095:6.3
1092:6.4
1061:16.0
1001:11.0
991:45.7
986:16.0
931:12.2
906:8.64
901:3.41
896:1.51
891:1.25
886:2.25
881:2.71
876:4.60
871:8.16
866:7.38
824:(3)
819:(3)
814:(1)
777:11.2
772:19.1
767:24.4
762:31.8
757:41.4
752:47.3
747:47.3
742:42.5
737:35.8
732:30.7
727:25.5
722:21.2
717:17.4
707:40.6
702:30.2
697:34.8
692:41.5
687:48.9
682:53.9
677:53.4
672:49.4
667:44.2
662:37.5
657:33.1
652:30.3
647:29.5
637:49.2
632:34.2
627:39.8
622:49.5
617:60.1
612:66.4
607:65.8
602:59.8
597:55.2
592:47.4
587:41.1
582:36.7
577:34.0
567:57.7
562:38.1
557:44.7
552:57.5
547:71.3
542:78.8
537:78.1
532:70.3
527:66.1
522:57.2
517:49.0
512:43.2
507:38.5
497:98.3
492:48.5
487:55.1
482:72.7
477:88.4
472:94.8
467:95.6
462:90.8
457:86.4
452:75.9
447:63.7
442:52.7
437:48.4
356:Dec
353:Nov
350:Oct
347:Sep
344:Aug
341:Jul
338:Jun
335:May
332:Apr
329:Mar
326:Feb
323:Jan
257:The
155:129
132:1936
52:1930
1511:on
1056:9.7
1051:1.9
1046:0.0
1041:0.0
1036:0.0
1031:0.0
1026:0.0
1021:0.0
1016:0.1
1011:4.1
1006:7.7
981:3.1
976:0.0
971:0.0
966:0.0
961:0.0
956:0.0
951:0.0
946:0.3
941:4.2
936:9.9
427:110
407:101
402:106
397:106
392:110
387:103
194:in
180:KWh
168:61%
1620::
1414:.
1408:.
1320:.
1304:^
1267:^
847:−2
842:−2
832:18
827:31
822:37
817:38
812:33
807:28
802:24
787:−2
422:59
417:65
412:87
382:90
377:76
372:63
367:62
157:MW
144:MW
1606:e
1599:t
1592:v
1581:.
1484:.
1462:.
1440:.
1394:.
1372:.
1332:.
1298:.
837:5
797:9
792:0
304:(
300:(
296:-
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