The Coralville Dam
The Emergency Spillway abuts the west end of the Dam and is 500 feet wide with its lip 31 feet below the Dam's crest. The Spillway's purpose is to release flood water that other- wise would exert excessive pressure on the main dam structure.
The capacity of the Coralville Reservoir is
over 15 billion gallons of water enough
to supply water for Iowa City and Coralville
for over five years.
Topics. This historical marker is listed in this topic list: Waterways & Vessels. A significant historical year for this entry is 1958.
Location. 41° 43.306′ N, 91° 31.93′ W. Marker is near Iowa City, Iowa, in Johnson County. It can be reached from Prairie Du Chien Road Northeast. Touch for map. Marker is at or near this postal address: 2850 Prairie Du Chien Rd NE, Iowa City IA 52240,
Regionally, this marker is in Eastern Iowa. It is also in the American Midwest and in the Corn Belt. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once the territory of the Mississippian Culture and also the Louisiana Purchase.
Other nearby markers. At least 8 other markers are within 4 miles of this marker, measured as the crow flies: An Ancient Sea (here, next to this marker); Devonian Fossils (a few steps from this marker); Site Geology (a few steps from this marker); View from the Overlook Plaza (a few steps from this marker); Samuel Jordan Kirkwood (approx. 3.9 miles away); Old Brick (approx. 4 miles away); Mormon Handcart Brigade Camp (approx. 4.1 miles away); St. Mary's Church (approx. 4.1 miles away). Touch for a list and map of all markers in Iowa City.
Credits. This page was last revised on June 7, 2021. It was originally submitted on June 6, 2021, by Connor Olson of Menomonee Falls, Wisconsin. This page has been viewed 593 times since then and 35 times this year. Photos: 1, 2. submitted on June 6, 2021, by Connor Olson of Menomonee Falls, Wisconsin. • Mark Hilton was the editor who published this page.
Editor’s want-list for this marker. A wide shot of the marker and its surroundings. • Can you help?

