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small tug boat and several barges were purchased for $ 1900 and hauled overland from
Seattle to the project site. Work continued through 1915 and 1916. Swiftcurrent Creek was diverted through the dam's outlet works in April 1916. Work was hampered by delays from spring flooding. The outlet tower and gatehouse were built in 1917, together with the spillway. In October observations indicated that the spillway was being displaced by a slide originating in a hill to the north of the spillway. Drainage of lakes above the slide did not cure the problem. Work on the dam and its control works continued through 1918, but the spillway problems continued. Water storage began in 1919. Eventually the spillway walls and floor were built of wood timbers to allow for movement. Work was complete in 1921. As originally built, Lake Sherburne impounded 66,100 acre-feet (81,500,000 m) behind the 94-foot (29 m) dam.
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20 ft (6.1 m) to prevent overtopping during the projected maximum flood condition. A wall, 24 ft (7.3 m) high, was built on top of the dam using interlocking concrete units set 24 ft (7.3 m) apart, with the space between filled with compacted earth, the first example of this technique to be used by the Bureau of
Reclamation. The outlet works and spillway were raised at this time.
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just east of the park), but no suitable damsite could be found. The
Sherburne Lakes in Swiftcurrent Valley were selected as an alternate site, with work beginning in 1914. Building material was borrowed from the upper end of the Sherburne Lakes. In order to expedite transportation of materials, a
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In 1960 the original spillway at the north end of the dam was filled in, victim of continuing slide activity, and a new spillway was built, using a circular overflow of the "morning glory" type out in the lake, discharging into the lower portion of the outlet works. The dam's crest was raised
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No minimum water release agreement applies to discharges from Lake
Sherburne, with no effective flow in the creek from November through February.
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The principal storage facility for the Milk River
Project was initially intended to be a dam on the St. Mary Lakes (
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is a 107-foot (33 m) high compacted earthfill dam built between 1914 and 1921, just outside the boundary of
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Recovery Plan for the
Coterminous United States Population of Bull Trout (
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Buildings and structures in
Glacier National Park (U.S.)
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Buildings and structures in
Glacier County, Montana
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501:Milk River Project at the Bureau of Reclamation
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282:as it flows out of the park. Water stored in
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16:Dam in near Glacier National Park, Montana
47:Location of Lake Sherburne Dam in Montana
538:United States Bureau of Reclamation dams
446:"Saint Mary - Belly River Recovery Unit"
205:242,000 cu yd (185,000 m)
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246:64,793 acre⋅ft (79,921,000 m)
364:from the original on 27 September 2012
426:from the original on 23 February 2012
390:from the original on 12 November 2011
223:2,100 cu ft/s (59 m/s)
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215:One morning glory type, uncontrolled
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466:from the original on 2012-07-20
548:1921 establishments in Montana
419:. U.S. Bureau of Reclamation.
386:. U.S. Bureau of Reclamation.
360:. U.S. Bureau of Reclamation.
296:Boundary Waters Treaty of 1909
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412:Simonds, William Joe (1998).
310:in Glacier National Park and
497:at the Bureau of Reclamation
173:116.5 ft (35.5 m)
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181:1,224 ft (373 m)
139:U.S. Bureau of Reclamation
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197:460 ft (140 m)
189:24 ft (7.3 m)
119:Construction began
543:Dams completed in 1921
455:Salvelinus confluentus
261:99 ft (30 m)
220:Spillway capacity
103:48.82833°N 113.52139°W
272:Glacier National Park
151:Type of dam
72:Glacier National Park
414:"Milk River Project"
384:"Milk River Project"
358:"Lake Sherburne Dam"
108:48.82833; -113.52139
312:Lower St. Mary Lake
308:Upper St. Mary Lake
243:Total capacity
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506:2011-11-12 at the
493:2012-09-27 at the
488:Lake Sherburne Dam
280:Swiftcurrent Creek
268:Lake Sherburne Dam
186:Width (crest)
164:Swiftcurrent Creek
22:Lake Sherburne Dam
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194:Width (base)
145:Dam and spillways
127:Opening date
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302:Construction
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94:113°31′17″W
82:Coordinates
517:Categories
470:2011-05-27
344:References
292:Milk River
91:48°49′42″N
323:Operation
228:Reservoir
211:Spillways
504:Archived
491:Archived
461:Archived
421:Archived
388:Archived
362:Archived
331:See also
160:Impounds
135:Owner(s)
64:Location
276:Montana
233:Creates
76:Montana
70:, near
56:Country
430:27 May
394:27 May
368:27 May
178:Length
170:Height
464:(PDF)
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432:2011
396:2011
370:2011
130:1921
122:1914
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
