Mountain Dell Dam

Mountain Dell Dam, Utah. Winter 2019.
Downstream side of the dam. Circa 1925.
Upstream side of the dam. Circa 1925.

The Mountain Dell Dam provides a water equalizing and storage reservoir for Salt Lake City, Utah located 10 miles (16 km) east of the city in northeastern Salt Lake County, near Interstate 80 in Parley's Canyon.

Designed by John S. Eastwood, and constructed between 1914 and 1925, the dam is an example of a mixed buttress dam and multiple arch dam 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.

With the completion of the dam, the city had an available storage capacity of 850 million US gallons (3,200,000 m3), and distributing or equalizing capacity of 24 million US gallons (91,000 m3) compared to 9 million US gallons (34,000 m3) previously.

The dam was listed on the National Register of Historic Places in 1980.[1]

Mountain Dell Dam is listed as in "poor" condition and is under repair.

  1. ^ Notarianni, Philip T. (January 1980). "National Register of Historic Places Nomination: Mountain Dell Dam" (PDF). National Park Service. {{cite journal}}: Cite journal requires |journal= (help) "Accompanying 2 photos, from 1980" (PDF). National Register of Historic Places Inventory.