Inventory of modern roundabouts in Iowa
Key
| CITY/COUNTY | LOCATION | DESCRIPTION | DATE/YEAR OPEN |
Altoona Polk County |
Bass Pro Dr & Prairie Fire Blvd |
Multi-lane in new commercial development; only two legs open |
2009 |
Ankeny Polk County |
SW Cherry St & SW 11th St |
New roadway adjacent to new HS & MS |
2011 |
Ankeny
Polk County |
NW 5th Street & NW Abbie Drive |
New residential development |
2008 |
Ankeny Polk County |
SW Snyder Blvd & SW Springfield |
New residential development |
2006 |
Ankeny Polk County |
NW 13th Street & NW Boulder Drive |
New residential development |
2005 |
Ankeny Polk County |
SW White Birch Dr & SW Braeburn St |
New residential development |
2005 |
Ankeny Polk County |
SW Goodwin St & SW Springfield Dr |
One of three in a new residential development |
2004 |
Ankeny Polk County |
SW Somersby Blvd & SW Springfield Dr |
One of three in a new residential development |
2004 |
Ankeny Polk County |
SW Somersby Blvd & SW 46th St |
One of three in a new residential development |
2004 |
Bettendorf in Scott County |
Middle Road & 53rd Avenue |
Designed to accommodate multiple lanes in the future |
2002 |
Rural Black Hawk County |
Independence Ave (Iowa 281) & Raymond Rd (V49) |
First high-speed, rural roundabout in Iowa; 55mph approaches |
2008 |
Rural Buchanan County |
C57 and V62 |
Rural, high-speed intersection; replaced two-way stop intersection |
2012 |
Cedar Falls Black Hawk County |
Ridgeway Ave & Chancellor Dr |
Realigned north approach, replaced T-intersection |
2011 |
Cedar Falls Black Hawk County |
Brandilynn Blvd & Prairie Pkwy |
In new commercial development |
2009 |
Cedar Falls Black Hawk County |
Viking Road & Cedar Heights Drive |
One-lane/two-lane hybrid on new alignment; north leg may be added later |
2007 |
Cedar Rapids CC Linn County |
Kirkwood CC Entrance & Training Rd |
One-lane/two-lane hybrid |
2011 |
Clive Dallas County |
Berkshire Parkway & Boston Parkway |
In new residential development |
2005 |
Clive Dallas County |
NW 156th Street & Boston Parkway |
Combination dual/single-lane |
2002 |
Clive Dallas County |
Berkshire Parkway & Sheridan Avenue |
Three public approaches, fourth is private access |
2001 |
Coralville in Johnson County |
Holiday Road & Corridor Way |
South approach is commercial access |
2007 |
Coralville Johnson County |
E 9th St & Quarry Road |
Double-lane, three approaches, with hotel on east approach |
2006 |
Coralville Johnson County |
12th Ave & Forevergreen Rd |
North approach is middle school entrance |
2005 |
Coralville in Johnson County |
1st Ave & Holiday Rd |
Hybrid dual/single-lane with three approaches |
2002 |
Des Moines Polk County |
SW 28th St & Rittenhouse St & Gannett Ave |
In the Airport Business Park, just south of Army Post Road |
2000 |
Rural Fayette County |
Iowa 3 & Iowa 187 |
Rural, high-speed, adjacent to Starmont HS |
2009 |
Fort Dodge Webster County |
10th Ave N & N 32nd St |
Replaced two "T" intersections |
2009 |
Iowa City Johnson County |
Grand Ave & S Grand Ave |
Three approaches; on U of Iowa campus |
2007 |
Iowa City Johnson County |
Kennedy Parkway & Meadowlark Dr |
In new residential development |
2006 |
Janesville Bremer County |
US 218 southbound ramp terminal at C50 |
Diamond interchange ramp terminal with 5th leg for frontage road |
2012 |
Janesville Bremer County |
US 218 northbound ramp terminal at C50 |
Diamond interchange ramp terminal |
2012 |
Johnston Polk County |
NW 62nd Ave & Pioneer Campus |
1 of 4 on 62nd Ave corridor |
2012 |
Johnston Polk County |
NW 62nd Ave Corridor |
2 of 4 on 62nd Ave corridor |
2012 |
Johnston Polk County |
NW 62nd Ave Corridor |
3 of 4 on 62nd Ave corridor |
2012 |
Johnston Polk County |
NW 62nd Ave Corridor |
4 of 4 on 62nd Ave corridor |
2012 |
Marion Linn County |
35th St & Tower Terrace |
Two-lane and one-lane roundabout on new road |
2011 |
Oskaloosa Mahaska County |
Orchard Ave & Old Pella Rd/Old 163 |
Includes pedestrian underpass and open center |
2003 |
Ottumwa Wapello County |
S Jct US 34 & US 63 |
Three approaches; includes right turn bypass lanes |
2006 |
Peosta Dubuque County |
Peosta St & NICC entrance |
Single-lane, new entrance into college |
2012 |
Urbandale Dallas County |
NW 142nd St & Douglas Parkway |
Double-lane; south approach realigned to create four approaches |
2004 |
Waverly Bremer County |
1st Ave NW & 8th St NW |
Replaced "T" intersection at entry to Wartburg College |
2004/5 |
West Des Moines Dallas County |
Blue Stem Cir; Village View Dr & S Prairie View Dr |
New residential/commercial development on former Ponderosa Golf Course |
2007 |
West Des Moines Dallas County |
Stagecoach Dr & S Crescent Way |
Intersection of two private residential streets on former Ponderosa Golf Course |
2007 |
West Des Moines Dallas County |
S Crescent Way & S Ridgefield Way & Fairway Dr |
Intersection of two private residential streets on former Ponderosa Golf Course |
2007 |
West Des Moines Dallas County |
West Access & W Wells Fargo Trail |
In new Wells Fargo development |
2006 |
West Des Moines Dallas County |
W Wells Fargo Trail & Wells Fargo Terrace |
In new Wells Fargo development |
2005 |
West Des Moines Dallas County |
W Wells Fargo Trail & E Wells Fargo Terrace |
In new Wells Fargo development |
2005 |
| CITY/COUNTY | LOCATION | DESCRIPTION | DATE/YEAR OPEN |
Ankeny in Polk County |
Irvindale Dr & Vintage Pkwy/Polk City Dr |
Replacing all-way stop |
Under construction in 2012 |
Cedar Rapids in Linn County |
Kirkwood Blvd & 76th Ave. SW |
Replacing all-way stop |
unknown |
Marion in Linn County |
Tower Terrace & Alburnett |
New intersection on Alburnett Rd |
Under construction in 2012 |
Mount Vernon in Linn County |
US 30 & Iowa 1 |
possible replacement for 4-way stop |
Mar-2013 Letting |
Mount Vernon in Linn County |
US 30 & 10th Street |
Three-approaches replacement for 1-way stop |
Mar-2013 Letting |
| CITY/COUNTY | LOCATION | DESCRIPTION | DATE/YEAR OPEN |
| Altoona Polk County |
10th Avenue SE & 15th Street SE | Traffic calming circle | Dec. 16, 2005 |
| Clive Polk County |
Clark Street & 101st Street | Traffic calming circle | 2003 |
| Clive Polk County |
Clark Street & 102nd Street | Traffic calming circle | 2003 |
| Des Moines Polk County |
Buchanan St & E 12th St. | Two-way stop (E-W) traffic calming circle | ? |
| Iowa City Johnson County |
Westbury Drive & Eastbury Drive | Olde Town private commercial development with no deflection or yield signs | 2006 |
| Sioux City Woodbury County |
Larsen Park Rd | Large (~400') Rotary with Park center |
? |
| Sioux City Woodbury County |
Larsen Park Rd & Floyd Blvd | Oval-shaped large Rotary | ? |
| Spillville Winneshiek County |
Main St & Church St | Old intersection around a central island | (old) |
| Urbandale Dallas County |
Tanglewood Drive & 159th Street | One of four traffic-calming circular islands new residential development |
2003 |
| Urbandale Dallas County |
Tanglewood Drive & Walnut Hills Drive/162nd | One of four traffic-calming circular islands new residential development |
2003 |
| Urbandale Dallas County |
Alpine Drive & 160th Street | One of four traffic-calming circular islands new residential development |
2003 |
| Urbandale Dallas County |
Alpine Drive & 162nd Street | One of four traffic-calming circular islands new residential development |
2003 |
| Urbandale Dallas County |
Quail Ridge & 138th | Traffic calming circle new residential development |
2003 |
| Urbandale Dallas County |
Quail Ridge & 140th | Traffic calming circle new residential development |
2003 |
| West Des Moines Dallas County |
Wistful Dr. & So. 79th St. | Circular island in a new residential development | 1999 |
| West Des Moines Polk County |
Glen Oaks Way | Three-approach residential circle | ? |
| West Des Moines Dallas County |
Intersection on new private commercial streets, near 64th & Wistful. | Circular island with no entry deflection; on private roads new commercial development east of Jordan Creek |
2006 |
| West Des Moines Dallas County |
Mills Civic Pkwy (335th St/F68) & 88th St (X Ave) | Old, stop-controlled circular intersection around a pioneeer cemetery | (very old) |
Bettendorf Roundabout
Photo credit Bing Maps
Coralville Roundabout
Photo credit Hillary Isebrands
Clive Roundabout
Photo credit City of Clive
Grand Avenue Roundabout - Iowa City
Photo credit Bing Maps
