Inventory of Modern Roundabouts in Iowa

Bettendorf Roundabout
Photo credit City of Bettendorf

Coralville Roundabout
Photo credit City of Coralville

Clive Roundabout
Photo credit City of Clive

CITY/COUNTY	LOCATION	DATE OPEN
	Constructed Roundabouts
Black Hawk County	Single-lane, rural roundabout at the intersection of Independence Avenue (Iowa 281) and Raymond Road (V49). First roundabout in Iowa with 55mph approaches.	Oct. 29, 2008
City of Altoona in Polk County	Single-lane roundabout at the intersection of 10th Avenue SE and 15th Street SE	Dec. 16, 2005
City of Ankeny in Polk County	Four single-lane roundabouts in a new residential development	various
City of Bettendorf in Scott County	Single-lane roundabout with four approaches at the Middle Road and 53rd Street. Designed to accommodate double lanes in the future.	2002
City of Cedar Falls in Black Hawk County	Roundabout at the intersection of Viking Road and Cedar Heights Drive	Nov. 2007
City of Clive in Dallas County	Double-lane roundabout with four approaches at the NW 156th Street and Boston Parkway intersection http://www.cityofclive.com/departments /public-works/traffic/Roundabouts.php	2002
City of Clive in Dallas County	Single-lane roundabout with three approaches at the Berkshire Parkway and Sheridan Avenue intersection http://www.cityofclive.com/departments /public-works/traffic/Roundabouts.php	2001
City of Clive in Dallas County	Single-lane roundabout with four approaches at the Berkshire Parkway and Boston Parkway intersection http://www.cityofclive.com/departments /public-works/traffic/Roundabouts.php	2005
City of Coralville in Johnson County	Single-lane roundabout at the intersection of 12th Avenue and Forevergreen Road	Nov. 16, 2005
City of Coralville in Johnson County	Hybrid single/dual lane roundabout with three approaches at the intersection of 1st Avenue and Holiday Road	Sept. 1, 2002
City of Coralville in Johnson County	Double-lane roundabout with three approaches at the intersection of East 9th Street and Quarry Road	Aug. 15, 2006
City of Coralville in Johnson County	Single-lane roundabout with four approaches at the intersection of Holiday Road and Corridor Way	2007
City of Des Moines in Polk County	Single-lane roundabout in the Airport Business Park, just south of Army Post Road at Southwest 28th Street, Rittenhouse Street and Gannett Avenue	2000
City of Oskaloosa in Mahaska County	Single-lane roundabout with four approaches and an open hole in the center at the intersection of Orchard Avenue and Old Pella Road (former Iowa 163)	2003
City of Ottumwa in Wapello County	Single-lane roundabout at the south junction of U.S. 34 and U.S. 63; all right turns bypass the roundabout Wapello County roundabout drawings	Nov. 2006
City of Urbandale in Dallas County	Double-lane roundabout at the intersection of 138th Street and Douglas Parkway http://www.urbandale.org/Streets/RoundAboutFolder/ RoundaboutHowTo.htm	2004
City of Urbandale in Dallas County	Three single-lane roundabouts at residential sites	2003
West Des Moines in Dallas County	Multi-lane roundabout at the intersection of Wistful Drive and South 79th Street	1999
West Des Moines in Dallas County	Four single-lane roundabouts at commercial and residential developments	2007
	Potential Roundabouts
City of Hiawatha in Linn County	Single-lane roundabout with four approaches at the intersection of Robins Road and Boyson Road	Under consideration
Fayette County	Rural roundabout at the intersection of Iowa 3 and Iowa 187, adjacent to Starmont H.S.	Planned for 2009

Please send any roundabout updates or corrections to Tim Simodynes.