451:). At the turn of the twentieth century, many engineers argued for the use of steel as a primary dam-building material. Steel had many advantages: it was not only cheaper, but also lighter, more easily transported, and more watertight than traditional materials like concrete, timber, stone, or earth. Furthermore, the use of steel simplified design calculations because standards and tolerances could be monitored at the steel mill. However, because steel dams appeared fragile to the eye, many opposed them in spite of the advantages. After Hauser Dam's collapse, opponents of steel won out. Even though the washout was the fault of too-short pilings—not the fault of steel—engineers rejected steel as a dam-building material, and no other steel dam has ever been built.
392:
spotting the problem, ran into the powerhouse and told everyone to flee for their lives. About 15 minutes later, the masonry footings gave way, causing the upstream section of the dam to settle and a 30-foot-wide (9 m) breach to open in the dam. The water pouring through the breach further undermined the dam's footing, and six minutes later a 300-foot-wide (91 m) section of the dam tore loose. The powerhouse was only slightly damaged. A surge of water 25 to 30 feet (7.6 to 9.1 m) high swept downstream. The remaining sections of the dam, anchored to bedrock, helped hold back some of the water for a time, reducing the destructiveness of the flood. In the state capital of
427:, around 7:00 p.m., but the narrow canyons of the Missouri River above the town helped hold back part of the floodwaters and dissipated much of their energy. The residents of the town received plenty of warning, and were evacuated. At first, the press reported that the town had been swept away, but this proved inaccurate as only a few shacks and the railroad station were uprooted. The famous iron Craig Bridge (normally 25 feet above water) had more than 2 feet (1 m) of water over its deck and was feared doomed, but it held. The Great Northern Railway tracks from Craig to
29:
484:
412:
366:, which had a patented steel sheet piling system) were driven 35 feet (11 m) into the riverbed and the steel of the dam attached to the pilings. The pilings were set at an angle of 1.5:1 to discourage sliding, and a triangular masonry footing capped with concrete on the upstream side set against the pilings in the riverbed to support the dam. The upstream face of the dam was covered in concrete, and a 20-foot (6.1 m) deep layer of
534:. The water impounded by Hauser Dam inundated the lower portion of Prickly Pear Creek, causing the formation of Lake Helena. A narrow canyon 3.9 miles (6.3 km) in length filled with deep water (known as the Causeway Arm) connects Hauser Lake with Lake Helena. Lake Helena is extremely shallow and develops dense amounts of aquatic vegetation, making it an important nesting, stopover, and feeding area for birds.
1962:
384:
1948:
2126:
256:. The original dam, built between 1905 and 1907, failed in 1908 and caused severe flooding and damage downstream. A second dam was built on the site in 1908 and opened in 1911 and comprises the present structure. The current Hauser Dam is 700 feet (210 m) long and 80 feet (24 m) high. The reservoir formed by the dam,
350:
number of changes to the dam to strengthen it. Jackson's design had to overcome a significant engineering problem: bedrock lay out of reach under the riverbed, covered by a thick layer of gravel. To overcome the fact that 300 feet (91 m) of the center section of the dam was built on a gravel riverbed and the rest on
466:
The current Hauser Dam has four sections: An overflow spillway, abutments on either side of the overflow spillway, a non-spillover section east of the left abutment (below which is the powerhouse), and a 32-foot (9.8 m) deep forebay which impounds water behind the powerhouse. The spillway is 493
439:
to allow the floodwaters to go downstream. Their efforts were not needed, as the
Missouri River only rose 7 feet (2.1 m) by the time it reached that city. Nonetheless, damages were estimated at more than $ 1 million. At the end of the 20th century, pieces of the steel dam could still be found on
391:
On April 14, 1908, at about 2:30 p.m., Hauser Dam failed after water pressure undermined the masonry footings (the steel dam itself being structurally sound). The first sign of trouble was when silt-heavy water began gushing from the base of the dam near the powerhouse. A power company employee,
522:
The reservoir formed by Hauser Dam is 15.5 miles (24.9 km) in length and only 0.1 miles (0.16 km) to 1.1 miles (1.8 km) in width. The lake has a surface area of 3,800 acres (1,500 ha), and has a storage capacity of 98,000 acre-feet (121,000,000 m) of water when full. Hauser
349:
constructed the dam for the power company. J.F. Jackson, a
Wisconsin Bridge and Iron engineer, designed the structure. Martin Gerry supervised the construction for the power company. Gerry and Wisconsin Bridge engineer James McKittrick argued several times over the dam's design, and Gerry ordered a
1337:
Flashboards are a system of wooden or metal panels which can be raised or lowered to allow excess water to pass over the crest of the dam. A series of metal frames holds the flashboards in place. Placing more than one flashboard on top of the other allows the dam's height to be temporarily raised.
370:
laid down on the upstream riverbed extending 300 feet (91 m) from the dam to discourage seeping. Volcanic ash is very fine, and
Jackson trusted that the weight of the water above the ash blanket would compact it to the point of being impenetrable, thus preventing water from eroding the gravel
329:
to build a dam (Hauser Dam) 2 miles (3.2 km) below Stubbs' Ferry. In 1905, Hauser and other directors of the
Missouri River Power Company formed the Helena Power Transmission Company (also known as the "Helena Power and Transmission Company"). The two companies merged on February 16, 1906, to
875:, and Montana, announced that it would purchase from PPL Montana 11 hydroelectric facilities in Montana, including Hauser Dam. The Montana Public Service Commission approved the deal in September 2014 and the two companies completed the $ 890 million purchase in November 2014.
844:, who on October 25, 1912, merged United Missouri River Power with the Butte Electric and Power Company, Billings and Eastern Montana Power Company, and Madison River Power Company to form the Montana Power Company. Montana Power took over not only United Missouri's
324:
which nearly ruined him financially. In his early 60s, Hauser began to rebuild his finances by branching out into the relatively new industry of hydroelectric power generation. In 1894, he formed the
Missouri River Power Company, and won the approval of the
855:
for $ 1.6 billion. The sale was expected to generate $ 30 million in taxes for the state of
Montana (although MPC said the total would be lower). In November 2001, citizens of Montana upset with energy price increases announced by PPL sought passage of a
840:, waning investor enthusiasm, and the liability associated with the collapse of the first Hauser Dam nearly drove Samuel Hauser (United Missouri's largest shareholder) into bankruptcy. Hauser sold his interest in United Missouri River Power to
371:
around the pilings. The dam was 630 feet (190 m) long and 75 feet (23 m) high. The spillway was 500 feet (150 m) wide and 13 feet (4.0 m) deep. The 10 horizontal turbines in the powerhouse delivered 14,000
2180:
1338:
Raising the flashboard can permit water to pass beneath the flashboard and over the dam, alleviating stress on the dam. The higher the flashboard is raised, the more water passed beneath and over the dam.
419:
The warnings and the geology of the
Missouri River below Hauser Dam helped save numerous lives. The construction camp at Holter Dam (then being built) was swept away. Future motion picture actor
271:
because it can generate electricity without needing to store additional water supplies behind the dam. The powerhouse contains six generators, bringing Hauser dam's generating capacity to 17
423:
and his family, living at the Seven Bar Nine Ranch, were notified in time and evacuated before the floodwaters tore across a portion of their property. The flood reached the small town of
2160:
1609:
264:), is 25 miles (40 km) long, has a surface area of 3,800 acres (1,500 ha), and has a storage capacity of 98,000 acre-feet (121,000,000 m) of water when full.
1349:
902:
2155:
1747:
The
Province and the States, A History of the Province of Louisiana Under France and Spain, and of the Territories and States of the United States Formed Therefrom.
2165:
2024:
553:
The lake commonly yields rainbow and brown trout, walleye and perch. It is an extremely popular weekend fishing spot. The lake is regularly stocked with fish.
860:
that would require the state of
Montana to buy all of PPL's hydroelectric dams, including Hauser Dam. Montana voters rejected the initiative in November 2002.
1646:
1694:
1396:
2185:
514:
In 2015 NorthWestern began removing and refurbishing the original 1911 turbines. They expect to refurbish one of the six pairs of turbines each year.
443:
The collapse of the dam affected the way engineers design dams. The first Hauser Dam was one of only three steel dams in the world (the others being
2195:
375:
of power. The total cost of the dam at that time was $ 1.5 million. The United
Missouri Power declared Hauser Dam operational on February 12, 1907.
1975:
541:, the next lake downstream, is 4.6 miles (7.4 km). There are several recreation areas along the lake, such as White Sandy Recreation area and
2215:
2200:
463:
rebuilt the dam. Jesse Baker Snow, a noted engineer from New York, was the engineer and assistant superintendent for the dam's reconstruction.
1899:
70:
459:
United Missouri River Power began reconstruction of Hauser Dam in July 1908, completing it in the spring of 1911. The Foundation Company of
1776:
1481:
2175:
1759:
Harts, William W. "Discussion: Forests and Reservoirs in Their Relation to Stream Flow With Particular Reference to Navigable Rivers."
2017:
346:
268:
1620:
1768:
1473:
2150:
2145:
1985:
396:
at the time, Gerry received a telephone call from the dam operators alerting him to the dam's destruction. He immediately sent
288:
The first Hauser Dam was built by the Missouri River Power Company and its successor, the United Missouri River Power Company.
50:
1422:
1868:
1195:
Harts, "Discussion: Forests and Reservoirs in Their Relation to Stream Flow With Particular Reference to Navigable Rivers,"
1904:. Montana Fish, Wildlife and Parks Commission. Montana Department of Fish, Wildlife and Parks. May 13, 2010. Archived from
2190:
851:
On November 2, 1999, Montana Power announced it was selling all of its dams and other electric power generating plants to
401:
2010:
444:
293:
28:
868:
782:
1400:
2170:
125:
890:
359:
1967:
542:
326:
1151:
Sheet pilings are long sections of structural steel which interlock vertically to form a continuous wall.
2205:
841:
1448:
405:
289:
2210:
1905:
864:
1928:
1716:
735:
703:
448:
189:
1846:"'The Huge Mass Writhed and Screamed like a Live Thing': Revisiting the Failure of Hauser Dam."
411:
857:
415:
Looking downstream at the west end Hauser Dam after its catastrophic failure on April 14, 1908
2115:
2110:
2050:
845:
538:
460:
234:
1673:
Aarstad, Rich; Arguimbau, Ellen; Baumler, Ellen; Porsild, Charlene L.; and Shovers, Brian.
2065:
1556:
December 10, 1997; Anez, "PP&L Global Buying Montana Power Plants for $ 1.6 Billion,"
852:
688:
672:
524:
436:
431:, were under water. Workers at the Boston and Montana Smelter in Great Falls improvised a
393:
355:
249:
408:, 70 miles (110 km) downstream, warning stations along the way about the dam break.
1922:
497:
Please help update this article to reflect recent events or newly available information.
2034:
1808:
656:
640:
424:
309:
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202:
140:
2139:
2090:
719:
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321:
253:
208:
58:
2105:
2095:
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1953:
1426:
814:
798:
428:
367:
1990:
Hauser Hydroelectric Facility, Hauser Dam Road, Helena, Lewis and Clark County, MT
435:
to deflect the floodwaters away from the smelter site and dynamited a portion of
2070:
1961:
592:
576:
531:
420:
387:
Looking upstream at Hauser Dam after its catastrophic collapse on April 14, 1908
383:
2085:
2060:
2045:
1943:
1825:
The Battle for Butte: Mining and Politics on the Northern Frontier, 1864–1906.
1537:
The Battle for Butte: Mining and Politics on the Northern Frontier, 1864–1906,
837:
467:
feet (150 m) long. Five hydraulic sliding gates and 17 manually operated
397:
2002:
85:
72:
1947:
1680:
Anez, Bob. "PP&L Global Buying Montana Power Plants for $ 1.6 Billion."
751:
468:
334:
1981:
Pictures of Hauser Dam construction at the "Helena As She Was" history site
1350:"Century of service: Turbines at Hauser Dam to be removed for refurbishing"
903:"Century of service: Turbines at Hauser Dam to be removed for refurbishing"
1689:
Conveniences Sorely Needed: Montana's Historic Highway Bridges, 1860–1956.
1301:
Conveniences Sorely Needed: Montana's Historic Highway Bridges, 1860–1956,
527:
depth of 26 feet (7.9 m) and a maximum depth of 70 feet (21 m).
2100:
2080:
975:, Montana Department of Fish, Wildlife and Parks, May 13, 2010, pp. 7, 9.
872:
432:
317:
272:
217:
195:
1996:
1989:
1980:
1845:
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to all towns and cities downstream, warning them of the coming flood. A
1738:
Gallagher, Susan. "Drive to Buy Montana Hydroelectric Dams Announced."
766:
363:
351:
342:
338:
297:
54:
960:, Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 11.
928:
891:
U.S. Geological Survey Geographic Names Information System: Hauser Dam
1610:"A Once-in-a-Lifetime Opportunity for Montana: PPL Hydro Acquisition"
608:
305:
2125:
1384:
Upper Missouri River Reservoir Fisheries Management Plan, 2010–2019,
1372:
Upper Missouri River Reservoir Fisheries Management Plan, 2010–2019,
1901:
Upper Missouri River Reservoir Fisheries Management Plan, 2010–2019
1386:
Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 7.
1374:
Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 9.
973:
Upper Missouri River Reservoir Fisheries Management Plan, 2010–2019
958:
Upper Missouri River Reservoir Fisheries Management Plan, 2010–2019
410:
382:
313:
1999:", 31 photos, 26 data pages, 5 photo caption pages
471:
allow water to overflow the dam. Hauser Dam can only generate 17
1839:
The Comical History of Montana: A Serious Story for Free People.
1582:
Gallagher, "Drive to Buy Montana Hydroelectric Dams Announced,"
1028:
The Comical History of Montana: A Serious Story for Free People,
472:
372:
341:
footings on top of gravel, with the ends of the dam anchored in
301:
2006:
477:
241:
238:
1830:"MPC Casts Doubt on $ 30 Million Tax Payment on Dam Sales."
1731:"Fishing Access to All PPL Dams in Montana Now Prohibited."
1677:
Helena, Mont.: Montana Historical Society Press Press, 2009.
1569:"MPC Casts Doubt on $ 30 Million Tax Payment on Dam Sales,"
2181:
Buildings and structures in Lewis and Clark County, Montana
1869:
Smith, Barrett. "The Hauser Lake and Wolf Creek Projects."
1711:
Stevensville, Mont.: Stoneydale Press Publishing Co., 1999.
848:
and Hauser Dam but the partially built Holter Dam as well.
320:, but encountered a series of financial setbacks after the
530:
The creation of Hauser Lake led to the creation of nearby
333:
The dam was named for Samuel T. Hauser. Hauser Dam was a
1647:"Montana hydro dams sale to NorthWestern Energy complete"
1761:
Transactions of the American Society of Civil Engineers.
1197:
Transactions of the American Society of Civil Engineers,
1691:
Helena, Mont.: Montana Historical Society Press, 2005.
1724:
Dennison, Mike. "A New Plan for Holter Dam Repairs."
1700:
Berg, Christian. "Montanans Reject Buying PPL Dams."
1818:
Journal of the Association of Engineering Societies.
1749:
Madison, Wisc.: Weston Historical Association, 1904.
1015:
Journal of the Association of Engineering Societies,
475:
of power, and so requires little water to function.
1884:Terzaghi, Karl; Peck, Ralph B.; Mesri, Gholamreza.
1858:
Belgrade, Mont.: Wilderness Adventures Press, 2005.
1552:May 25, 2000; Johnson, "MPC to Sell Power Plants,"
1425:. Montana Fish, Wildlife, and Parks. Archived from
201:
188:
183:
175:
167:
162:
154:
146:
136:
131:
121:
111:
101:
64:
46:
38:
21:
1780:. Washington, D.C.: Library of Congress. p. 2
1695:Axline, Jon. "Hauser Dam." METNet.MT.gov. No date.
1485:. Washington, D.C.: Library of Congress. p. 2
1273:Smith, "The Hauser Lake and Wolf Creek Projects,"
1182:Smith, "The Hauser Lake and Wolf Creek Projects,"
1169:Smith, "The Hauser Lake and Wolf Creek Projects,"
33:Hauser Dam in late 1908 during its reconstruction.
1806:Johnson, Charles S. "MPC to Sell Power Plants."
1756:Helena, Mont.: Independent Publishing Co., 1912.
2161:Historic American Engineering Record in Montana
1548:Dennison, "A New Plan for Holter Dam Repairs,"
300:from 1885 to 1887, enjoyed a lengthy career in
1827:Seattle: University of Washington Press, 2006.
330:form the United Missouri River Power Company.
2018:
1976:Hauser Dam page on the PPL corporate Web site
1142:Axline, "Hauser Dam," METNet.MT.gov, no date.
1138:
1104:
1102:
1100:
1098:
1096:
1094:
1092:
1090:
1088:
1038:
1036:
8:
1769:"Holter Hydroelectric Facility, House No. 8"
1531:
1529:
1474:"Holter Hydroelectric Facility, House No. 8"
1136:
1134:
1132:
1130:
1128:
1126:
1124:
1122:
1120:
1118:
1927:. New York: John Wiley & Sons. p.
1871:Stone & Webster Public Service Journal.
1675:Montana Place Names From Alzada to Zortman.
1521:Montana Place Names From Alzada to Zortman,
1502:
1500:
1399:. Bureau of Land Management. Archived from
1275:Stone & Webster Public Service Journal,
1269:
1267:
1265:
1263:
1261:
1234:
1232:
1230:
1228:
1226:
1224:
1222:
1220:
1218:
1184:Stone & Webster Public Service Journal,
1171:Stone & Webster Public Service Journal,
1044:Montana Place Names From Alzada to Zortman,
968:
966:
2025:
2011:
2003:
1879:The Last Hero: A Biography of Gary Cooper.
1595:Berg, "Montanans Reject Buying PPL Dams,"
1288:The Last Hero: A Biography of Gary Cooper,
1074:
1072:
555:
27:
18:
1997:Hauser Hydroelectric Facility, Powerhouse
1367:
1365:
1363:
1361:
1359:
996:
994:
953:
951:
949:
947:
945:
404:locomotive was dispatched to the city of
248:about 14 miles (23 km) northeast of
1849:Montana The Magazine of Western History.
1709:Lewis & Clark on the Upper Missouri.
1508:Lewis & Clark on the Upper Missouri,
1423:"Black Sandy, State Park on Hauser Lake"
2156:Energy infrastructure completed in 1911
1886:Soil Mechanics in Engineering Practice.
1865:Westport, Conn.: Greenwood Press, 2004.
1320:
1318:
1210:Soil Mechanics in Engineering Practice,
1058:
1056:
1054:
1052:
883:
2166:Hydroelectric power plants in Montana
570:
567:
564:
561:
7:
1986:Historic American Engineering Record
1891:"Two Towns Swept By Montana Flood."
1777:Historic American Engineering Record
1482:Historic American Engineering Record
1238:"Two Towns Swept By Montana Flood,"
1110:The Design and Construction of Dams,
1924:The Design and Construction of Dams
1881:Garden City, N.Y.: Doubleday, 1980.
1816:King, Ernest W. "Annual Address."
1645:Black, Jo Dee (18 November 2014).
1449:"FISHMT :: Waterbody Details"
158:700 feet (210 m) (second dam)
14:
2186:Dam failures in the United States
440:the banks of the Missouri River.
347:Wisconsin Bridge and Iron Company
345:on either side of the river. The
2124:
1960:
1946:
537:The distance from Hauser Dam to
482:
150:80 feet (24 m) (second dam)
2196:Run-of-the-river power stations
1841:San Diego: E.L. Scofield, 1912.
1803:Brookfield, Vt.: Ashgate, 1997.
871:and operating in South Dakota,
2216:1911 establishments in Montana
1767:Johnson, Lon (November 1994).
1472:Johnson, Lon (November 1994).
986:The Province and the States...
931:. Carbon Monitoring for Action
1:
2201:NorthWestern Corporation dams
1856:Flyfisher's Guide to Montana.
1397:"White Sandy Recreation Site"
867:, an energy company based in
1352:. Helena Independent Record.
1348:AL KNAUBER (April 4, 2015).
836:Cost overruns on downstream
445:Ashfork-Bainbridge Steel Dam
179:3,655 ft (1,114 m)
1851:59, 4 (Winter 2009): 24–45.
1208:Terzaghi, Peck, and Mesri,
2232:
2176:Dams on the Missouri River
1745:Goodspeed, Weston Arthur.
2122:
2041:
1995:HAER No. MT-108-A, "
1988:(HAER) No. MT-108, "
1714:"Dam Bursts in Montana."
1251:"Dam Bursts in Montana,"
1186:October 1908, p. 236-237.
869:Sioux Falls, South Dakota
783:Westslope Cutthroat Trout
491:This section needs to be
284:Construction of first dam
215:
26:
1921:Wegmann, Edward (1918).
1792:"J. B. Snow, 79, Dead."
1013:King, "Annual Address,"
832:Dam ownership and access
126:NorthWestern Corporation
1968:Renewable energy portal
1702:Allentown Morning Call.
1597:Allentown Morning Call,
1324:"J.B. Snow, 79, Dead,"
360:L. P. Friestedt Company
216:Power transmission: 69
190:Installed capacity
102:Construction began
2151:Dams completed in 1911
2146:Dams completed in 1907
1888:New York: Wiley, 1996.
543:Black Sandy State Park
416:
402:Great Northern Railway
388:
327:United States Congress
269:"run-of-the-river" dam
203:Annual generation
86:46.76528°N 111.88694°W
51:Lewis and Clark County
1908:on September 21, 2009
1861:Shearer, Benjamin F.
1277:October 1908, p. 237.
1173:October 1908, p. 236.
414:
386:
379:Collapse of first dam
176:Normal elevation
2191:Disasters in Montana
1992:", 8 data pages
1933:Hauser Dam April 14.
1726:Great Falls Tribune.
1697:Accessed 2010-06-15.
1550:Great Falls Tribune,
1312:Parrett 2009, p. 33.
1160:Parrett 2009, p. 34.
988:, 1904, pp. 452–454.
294:Territorial Governor
290:Samuel Thomas Hauser
91:46.76528; -111.88694
16:Dam in Montana, U.S.
1893:The New York Times.
1823:Malone, Michael P.
1799:Jackson, Donald C.
1794:The New York Times.
1651:Great Falls Tribune
1617:NorthWestern Energy
1326:The New York Times,
1253:The New York Times,
1240:The New York Times,
1199:March 1909, p. 356.
1017:March 1906, p. 103.
865:NorthWestern Energy
863:In September 2013,
558:
82: /
1863:Louisiana to Ohio.
1813:December 10, 1997.
1742:November 20, 2001.
1717:The New York Times
1586:November 20, 2001.
1002:Louisiana to Ohio,
907:Independent Record
736:Smallmouth Buffalo
704:Mountain Whitefish
556:
449:Redridge Steel Dam
417:
389:
2133:
2132:
1877:Swindell, Larry.
1837:Murphy, Jerre C.
1832:Associated Press.
1740:Associated Press.
1733:Associated Press.
1704:November 7, 2002.
1684:November 2, 1998.
1682:Associated Press.
1599:November 7, 2002.
1584:Associated Press,
1571:Associated Press,
1560:November 2, 1998.
1558:Associated Press,
1519:Aarstad, et al.,
1042:Aarstad, et al.,
858:ballot initiative
829:
828:
512:
511:
358:(supplied by the
224:
223:
132:Dam and spillways
117:1911 (second dam)
115:1907 (first dam);
112:Opening date
107:1908 (second dam)
105:1905 (first dam);
2223:
2128:
2116:Gavins Point Dam
2111:Fort Randall Dam
2051:Canyon Ferry Dam
2027:
2020:
2013:
2004:
1970:
1965:
1964:
1956:
1951:
1950:
1935:
1917:
1915:
1913:
1854:Robbins, Chuck.
1844:Parrett, Aaron.
1789:
1787:
1785:
1773:
1662:
1661:
1659:
1657:
1642:
1636:
1635:
1633:
1631:
1625:
1619:. Archived from
1614:
1606:
1600:
1593:
1587:
1580:
1574:
1567:
1561:
1546:
1540:
1533:
1524:
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1490:
1478:
1469:
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1459:
1445:
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1438:
1436:
1434:
1429:on June 29, 2012
1419:
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1369:
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1187:
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1174:
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1161:
1158:
1152:
1149:
1143:
1140:
1113:
1106:
1083:
1082:1997, pp. 65–66.
1076:
1067:
1060:
1047:
1040:
1031:
1024:
1018:
1011:
1005:
998:
989:
982:
976:
970:
961:
955:
940:
939:
937:
936:
925:
919:
918:
916:
914:
899:
893:
888:
846:Canyon Ferry Dam
559:
539:Holter Reservoir
507:
504:
498:
486:
485:
478:
262:Hauser Reservoir
97:
96:
94:
93:
92:
87:
83:
80:
79:
78:
75:
31:
19:
2231:
2230:
2226:
2225:
2224:
2222:
2221:
2220:
2171:Dams in Montana
2136:
2135:
2134:
2129:
2120:
2066:Black Eagle Dam
2037:
2031:
1966:
1959:
1952:
1945:
1942:
1920:
1911:
1909:
1898:
1895:April 16, 1908.
1783:
1781:
1771:
1766:
1721:April 15, 1908.
1670:
1665:
1655:
1653:
1644:
1643:
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1629:
1627:
1623:
1612:
1608:
1607:
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1594:
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1568:
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1554:The Missoulian,
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1332:
1323:
1316:
1311:
1307:
1298:
1294:
1285:
1281:
1272:
1259:
1255:April 15, 1908.
1250:
1246:
1242:April 16, 1908.
1237:
1216:
1207:
1203:
1194:
1190:
1181:
1177:
1168:
1164:
1159:
1155:
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927:
926:
922:
912:
910:
901:
900:
896:
889:
885:
881:
853:PPL Corporation
834:
689:Mottled Sculpin
673:Longnose Sucker
551:
520:
508:
502:
499:
496:
487:
483:
457:
437:Black Eagle Dam
381:
286:
281:
260:(also known as
250:Helena, Montana
231:Hauser Lake Dam
229:(also known as
116:
106:
90:
88:
84:
81:
76:
73:
71:
69:
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34:
17:
12:
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5:
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2098:
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2083:
2078:
2073:
2068:
2063:
2058:
2053:
2048:
2042:
2039:
2038:
2035:Missouri River
2032:
2030:
2029:
2022:
2015:
2007:
2001:
2000:
1993:
1983:
1978:
1972:
1971:
1957:
1941:
1940:External links
1938:
1937:
1936:
1918:
1896:
1889:
1882:
1875:
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1842:
1835:
1834:March 3, 1999.
1828:
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1809:The Missoulian
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1796:June 18, 1947.
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641:Fathead Minnow
637:
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425:Craig, Montana
380:
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246:Missouri River
222:
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220:single-circuit
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2117:
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2094:
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2091:Fort Peck Dam
2089:
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2079:
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2023:
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2016:
2014:
2009:
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1897:
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1873:October 1908.
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1730:
1728:May 25, 2000.
1727:
1723:
1720:
1718:
1713:
1710:
1707:Clary, Jean.
1706:
1703:
1699:
1696:
1693:
1690:
1687:Axline, Jon.
1686:
1683:
1679:
1676:
1672:
1671:
1667:
1652:
1648:
1641:
1638:
1626:on 2016-10-21
1622:
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1579:
1576:
1572:
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1563:
1559:
1555:
1551:
1545:
1542:
1539:2006, p. 204.
1538:
1532:
1530:
1526:
1523:2009, p. 125.
1522:
1516:
1513:
1510:1999, p. 137.
1509:
1503:
1501:
1497:
1484:
1483:
1475:
1468:
1465:
1454:
1450:
1444:
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1428:
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1403:on 2012-06-01
1402:
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1241:
1235:
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1227:
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1221:
1219:
1215:
1212:1996, p. 478.
1211:
1205:
1202:
1198:
1192:
1189:
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1179:
1176:
1172:
1166:
1163:
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1137:
1135:
1133:
1131:
1129:
1127:
1125:
1123:
1121:
1119:
1115:
1112:1918, p. 298.
1111:
1105:
1103:
1101:
1099:
1097:
1095:
1093:
1091:
1089:
1085:
1081:
1075:
1073:
1069:
1066:1912, p. 135.
1065:
1059:
1057:
1055:
1053:
1049:
1046:2009, p. 119.
1045:
1039:
1037:
1033:
1030:1912, p. 267.
1029:
1023:
1020:
1016:
1010:
1007:
1004:2004, p. 708.
1003:
997:
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753:
750:
749:
745:
742:
739:
737:
734:
733:
729:
726:
723:
721:
720:Rainbow Trout
718:
717:
713:
710:
707:
705:
702:
701:
697:
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692:
690:
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682:
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623:
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610:
607:
606:
602:
599:
596:
594:
591:
590:
586:
583:
580:
578:
575:
574:
571:Native to MT
560:
554:
548:
546:
544:
540:
535:
533:
528:
526:
517:
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494:
489:
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365:
361:
357:
356:sheet pilings
353:
348:
344:
340:
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331:
328:
323:
322:Panic of 1893
319:
315:
311:
307:
303:
299:
295:
291:
283:
278:
276:
274:
270:
267:The dam is a
265:
263:
259:
255:
254:United States
251:
247:
243:
240:
236:
235:hydroelectric
232:
228:
219:
214:
210:
206:
204:
200:
197:
193:
191:
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184:Power Station
182:
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114:
110:
104:
100:
95:
67:
63:
60:
56:
52:
49:
45:
41:
39:Official name
37:
30:
25:
20:
2206:Gravity dams
2106:Big Bend Dam
2096:Garrison Dam
2076:Cochrane Dam
2055:
2033:Dams on the
1954:Water portal
1932:
1923:
1910:. Retrieved
1906:the original
1900:
1892:
1885:
1878:
1870:
1862:
1855:
1848:
1838:
1831:
1824:
1817:
1807:
1800:
1793:
1784:February 12,
1782:. Retrieved
1775:
1760:
1753:
1752:Hall, J. H.
1746:
1739:
1735:May 9, 2003.
1732:
1725:
1715:
1708:
1701:
1688:
1681:
1674:
1668:Bibliography
1654:. Retrieved
1650:
1640:
1628:. Retrieved
1621:the original
1616:
1604:
1596:
1591:
1583:
1578:
1570:
1565:
1557:
1553:
1549:
1544:
1536:
1520:
1515:
1507:
1489:February 12,
1487:. Retrieved
1480:
1467:
1456:. Retrieved
1453:myfwp.mt.gov
1452:
1443:
1431:. Retrieved
1427:the original
1417:
1405:. Retrieved
1401:the original
1391:
1383:
1379:
1371:
1343:
1333:
1325:
1308:
1303:2005, p. 49.
1300:
1295:
1290:1980, p. 12.
1287:
1282:
1274:
1252:
1247:
1239:
1209:
1204:
1196:
1191:
1183:
1178:
1170:
1165:
1156:
1147:
1109:
1079:
1063:
1043:
1027:
1022:
1014:
1009:
1001:
985:
980:
972:
957:
933:. Retrieved
923:
911:. Retrieved
906:
897:
886:
862:
850:
842:John D. Ryan
835:
815:Yellow Perch
799:White Sucker
552:
536:
529:
521:
513:
500:
492:
465:
458:
442:
429:Ulm, Montana
418:
390:
368:volcanic ash
332:
287:
266:
261:
257:
230:
226:
225:
2071:Rainbow Dam
1820:March 1906.
1763:March 1909.
984:Goodspeed,
825:Introduced
777:Introduced
761:Introduced
730:Introduced
667:Introduced
635:Introduced
625:Common Carp
603:Introduced
593:Brown Trout
587:Introduced
577:Brook Trout
532:Lake Helena
523:Lake has a
518:Hauser Lake
469:flashboards
421:Gary Cooper
406:Great Falls
292:, a former
258:Hauser Lake
171:Hauser Lake
122:Operator(s)
89: /
77:111°53′13″W
65:Coordinates
2211:Steel dams
2140:Categories
2086:Morony Dam
2061:Holter Dam
2056:Hauser Dam
2046:Toston Dam
1656:7 November
1630:7 November
1458:2022-06-13
1286:Swindell,
935:2018-04-26
913:7 November
838:Holter Dam
822:Warmwater
806:Warmwater
790:Coldwater
774:Warmwater
743:Warmwater
727:Coldwater
711:Coldwater
680:Warmwater
664:Coldwater
648:Warmwater
632:Warmwater
616:Coldwater
600:Coldwater
584:Coldwater
455:Second dam
227:Hauser Dam
194:17.7
74:46°45′55″N
42:Hauser Dam
22:Hauser Dam
1108:Wegmann,
1078:Jackson,
1000:Shearer,
879:Footnotes
752:Utah Chub
473:megawatts
398:telegrams
373:kilowatts
337:built on
335:steel dam
310:railroads
252:, in the
237:straight
163:Reservoir
2101:Oahe Dam
2081:Ryan Dam
1912:June 13,
1754:Montana.
1535:Malone,
1299:Axline,
1064:Montana,
1026:Murphy,
929:"Hauser"
873:Nebraska
693:Sculpin
613:Codfish
562:Species
557:Species
503:May 2024
461:New York
433:wing dam
318:smelting
314:ranching
137:Impounds
47:Location
1506:Clary,
1433:July 1,
1407:July 1,
809:Native
803:Sucker
793:Native
767:Walleye
756:Minnow
746:Native
740:Sucker
714:Native
698:Native
683:Native
677:Sucker
657:Kokanee
651:Native
645:Minnow
629:Minnow
619:Native
565:Family
549:Fishing
493:updated
364:Chicago
352:bedrock
343:bedrock
339:masonry
302:banking
298:Montana
279:History
244:on the
239:gravity
233:) is a
207:135.34
168:Creates
55:Montana
1062:Hall,
819:Perch
787:Trout
771:Perch
724:Trout
708:Trout
661:Trout
609:Burbot
597:Trout
581:Trout
568:Class
394:Helena
316:, and
306:mining
211:(2009)
155:Length
147:Height
1801:Dams.
1772:(PDF)
1624:(PDF)
1613:(PDF)
1477:(PDF)
1080:Dams,
1914:2010
1786:2022
1658:2016
1632:2016
1491:2022
1435:2012
1409:2012
915:2016
525:mean
447:and
296:of
59:U.S.
1929:298
362:of
242:dam
209:GWh
2142::
1931:.
1774:.
1649:.
1615:.
1528:^
1499:^
1479:.
1451:.
1358:^
1317:^
1260:^
1217:^
1117:^
1087:^
1071:^
1051:^
1035:^
993:^
965:^
944:^
905:.
545:.
354:,
312:,
308:,
304:,
275:.
273:MW
218:kV
196:MW
57:,
53:,
2026:e
2019:t
2012:v
1916:.
1811:.
1788:.
1719:.
1660:.
1634:.
1493:.
1461:.
1437:.
1411:.
938:.
917:.
505:)
501:(
495:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
