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in the first stage and an additional 5 buttresses and 5 arches in the second stage. The maximum base width of the dam is 132 feet (40 m) from the face of the arch to the downstream end of the buttresses. The maximum thickness of the buttresses is 8 feet (2.4 m). The maximum thickness of the
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As of 2019 Mountain Dell Dam was listed as being in "poor" condition, with increased hazard due to its proximity to highways and parks, with risk to life in the event of failure. A liner is being installed on the upstream face to control water intrusion that creates freeze/thaw damage. Until the
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not entirely watertight and of a nature to decompose somewhat under exposure to air and water. The advantages of the multiple arch type in this connection were considered to be the practical elimination of upward pressure, the practical impossibility of overturning or sliding on its base and the
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The total quantity of concrete in the dam is 8,271 cubic yards (6,323 m). The total cost of the dam was $ 90,000. The storage capacity at the present height is slightly over 300 million US gallons (1,100,000 m). The general design and supervision was handled under the direction of
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With the completion of the dam, the city had an available storage capacity of 850 million US gallons (3,200,000 m), and distributing or equalizing capacity of 24 million US gallons (91,000 m) compared to 9 million US gallons (34,000 m) previously.
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The dam was built in two stages, the first stage completed in 1917 with a height of 105 feet (32 m) above the foundation and the second stage, completed 1925, added 40 feet (12 m) to the height of the dam.
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arcs of circles. The spacing between buttress centers is 35 feet (11 m). The two sets of outlet gates each consist of two 24 inches (610 mm) pipes with a suitable grating entrance, and with a
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The cost of the structure was considerably increased because of the necessity of going 43 feet (13 m) below ground level in the bottom of the canyon to secure the bedrock foundation. The
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construction. At the time the plans were made, the city was in need of a sufficient supply of water, especially during late summer and the middle of winter.
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level is 4 feet (1.2 m) below the top of the dam, so that the maximum depth of the reservoir is 58 feet (18 m) to the crest of the spillway.
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arch rings is 4.1 feet (1.2 m). The thickness at the present top of the dam is 15 inches (380 mm). The arch rings are 120
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Mountain Dell Dam, Parley's Canyon, Northwest side of I-80, West of State Route 39, Salt Lake City, Salt Lake County, UT
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After consideration, the multiple arch type was chosen. One of the factors influencing this decision was the
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Industrial buildings and structures on the
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University and college buildings listed on the
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deterioration is arrested, the reservoir may only be half full during the winter.
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Mountain Dell Dam is listed as in "poor" condition and is under repair.
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of Salt Lake City and John S. Eastwood acting as consulting engineer.
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List of jails and prisons on the
National Register of Historic Places
257:"National Register of Historic Places Nomination: Mountain Dell Dam"
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ready facilities for internal inspection of the dam at any time.
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located 10 miles (16 km) east of the city in northeastern
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National
Register of Historic Places in Salt Lake County, Utah
308:"Mountain Dell Dam is 1 of 5 in Utah that's in poor condition"
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Multiple arch reinforced concrete dam of the
Eastwood design
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Dams on the
National Register of Historic Places in Utah
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provides a water equalizing and storage reservoir for
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The dam as planned and as constructed consists of 11
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History of the
National Register of Historic Places
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901:Buildings and structures in Salt Lake County, Utah
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818:National Register of Historic Places portal
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916:Historic American Engineering Record in Utah
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366:U.S. National Register of Historic Places
144:condition at the site. The bedrock is a
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911:United States local public utility dams
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42:Downstream side of the dam. Circa 1925.
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255:Notarianni, Philip T. (January 1980).
50:Upstream side of the dam. Circa 1925.
34:Mountain Dell Dam, Utah. Winter 2019.
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325:Historic American Engineering Record
102:National Register of Historic Places
781:National Historic Preservation Act
287:"Accompanying 2 photos, from 1980"
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129:Reinforced concrete dam of the
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380:Architectural style categories
126:Arched solid dam, gravity type
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786:Historic Preservation Fund
765:American Legation, Morocco
100:The dam was listed on the
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727:Lists by associated state
708:Northern Mariana Islands
327:(HAER) No. UT-16, "
262:. National Park Service.
235:American Water Landmark
18:Mountain Dell Reservoir
906:Dams completed in 1925
857:40.75056°N 111.72111°W
703:Minor Outlying Islands
686:Lists by insular areas
400:Keeper of the Register
275:Cite journal requires
237:– (awarded 1981)
216:were the contractors.
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81:Designed by
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860: /
848:111°43′16″W
753:Other areas
713:Puerto Rico
547:Mississippi
462:Connecticut
875:Categories
845:40°45′02″N
662:Washington
582:New Mexico
577:New Jersey
452:California
242:References
198:gate valve
180:buttresses
146:calcareous
891:Arch dams
672:Wisconsin
637:Tennessee
542:Minnesota
517:Louisiana
220:Condition
194:butterfly
104:in 1980.
828:Category
657:Virginia
607:Oklahoma
587:New York
562:Nebraska
552:Missouri
537:Michigan
527:Maryland
512:Kentucky
492:Illinois
467:Delaware
457:Colorado
447:Arkansas
229:See also
210:Engineer
173:spillway
131:Ambursen
91:arch dam
774:Related
677:Wyoming
652:Vermont
557:Montana
497:Indiana
477:Georgia
472:Florida
442:Arizona
432:Alabama
208:, City
182:and 11
142:bedrock
70:, near
612:Oregon
567:Nevada
507:Kansas
482:Hawaii
437:Alaska
373:Topics
189:degree
184:arches
111:Design
744:Palau
642:Texas
522:Maine
487:Idaho
290:(PDF)
260:(PDF)
149:shale
698:Guam
647:Utah
602:Ohio
502:Iowa
281:help
133:type
64:Utah
54:The
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
