Inventory of Roundabouts in Iowa
October 2003

Current

CITY LOCATION DATE OPEN
Bettendorf (2-lane) Middle Road & 53rd Street 2002
Clive (2-lane) NW 156th Street 2003
Coralville (2-lane) 1st. Ave. & Holiday Rd. 2002
Des Moines (one lane) SW 28th St. & Rittenhouse 2000
Urbandale (one lane) 3 residential sites 2003
West Des Moines (2-lane?) Wistful Dr. & S. 79th St. 1999

Future

CITY LOCATION DATE OPEN
Clive Various locations One in 2004, 3 later
Pella E. 1st Street & Franklin 2005?
Polk City 3 sites on Parker Blvd. 2004
Oskaloosa (one lane) Orchard Ave. & Old Pella Rd. 2003?
Ottumwa (one lane) S. Jct. US 34 & US 63 2005?
Urbandale (2-lane) 138th & Douglas Parkway 2004
Waterloo (one lane) River Rd. & Commercial St. 2004?
Iowa County U.S. 151 & Ia. 220 To be programmed

There are also some historic circular intersections in rural areas. One of those is in Dallas County at the intersection of 335th Street and X Avenue, encircling a pioneer cemetery. Age is unknown and considerable modification would be needed to meet current design standards for a modern roundabout. Another has been identified in the town of Spillville in Winneshiek County, age unknown but not of modern design.

CTRE is an Iowa State University center, administered by the Institute for Transportation.

Address: 2711 S. Loop Drive, Suite 4700, Ames, IA 50010-8664

Phone: 515-294-8103
FAX: 515-294-0467

Website: www.ctre.iastate.edu/

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