| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Bend,
                OR Deschutes Co. United States | NW Awbrey Rd. / NW Sonora Dr. (44.07240, -121.31750) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.0262 | Other (At-Grade) Single-Lane | Older design. Fourth leg is stub. ICD estimated from Google Maps linework. | |
| Draper,
                UT Salt Lake Co. United States | Vestry Rd. / Rocky Mouth Ln. (40.48996, -111.87390) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 57.2236 | Other (At-Grade) Single-Lane | 1996 | ICD estimated from Google Maps linework. | 
| Mount Aetna,
                MD Washington Co. United States | MD 66 (Mapleville Rd.) / Mount Aetna Rd. (39.60243, -77.62425) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 44.1703 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Scaggsville,
                MD Howard Co. United States | Hopkins-Gorman Rd. / US 29 NB Ramps (39.15846, -76.88660) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 59.2695 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2002 | ICD estimated from Google Maps linework. | 
| Rochester,
                MN Olmsted Co. United States | College Dr. SE / College Pkwy. SE (north) (44.01949, -92.42918) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.2920 | Other (At-Grade) Single-Lane | 2000 | |
| Maplewood,
                MN Ramsey Co. United States | Frost Ave. / English St. (44.99927, -93.04572) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.5374 | Other (At-Grade) Single-Lane | 2002 | Completed October 2002. Twenty-year ADT is 15,000. ICD estimated from Google Maps linework. | 
| Stillwater,
                MN Washington Co. United States | Rutherford Rd. / 72nd St. / New England Pl. (School House Circle) (45.05673, -92.85909) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 55.6830 | Other (At-Grade) Single-Lane | 1999 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Lindon,
                UT Utah Co. United States | 400 South / 600 West (Lindon Park Circle) (40.33034, -111.73140) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 33.6873 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | Date estimated. ICD estimated from Google Maps linework. | 
| Provo,
                UT Utah Co. United States | 1730 North / 1740 West (40.25703, -111.68890) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.3437 | Other (At-Grade) Single-Lane | 1998 | ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Promenade Dr. / Royal Pine Dr. (38.96891, -104.74860) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.2859 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Provo,
                UT Utah Co. United States | 700 East / Center St. (40.23369, -111.64660) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.9119 | Other (At-Grade) Single-Lane | 1996 | ICD estimated from Google Maps linework. | 
| Provo,
                UT Utah Co. United States | 1700 North / 1730 North / 1500 West (40.25650, -111.68530) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.4324 | Other (At-Grade) Single-Lane | 1998 | ICD estimated from Google Maps linework. | 
| Provo,
                UT Utah Co. United States | 300 North / Seven Peaks Blvd. (40.23737, -111.63750) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.7337 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1997 | ICD estimated from Google Maps linework. | 
| Provo,
                UT Utah Co. United States | 5000 North / Edgewood Dr. (40.30066, -111.65750) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 19.1282 | Other (At-Grade) Single-Lane | 1999 | ICD estimated from Google Maps linework. | 
| Avon,
                CO Eagle Co. United States | William J Post Blvd. / Yoder Ave. (39.62753, -106.50320) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.9554 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| De Pere,
                WI Brown Co. United States | Chicago St. (CTH G) / Libal St. (44.44026, -88.03812) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.8455 | Other (At-Grade) Single-Lane | 2001 | Roundabout surrounded by homes, businesses, East De Pere Middle School, and De Pere High School. Roundabout serves as main entrance to the high school. Completed August 2001. http://www.co.brown.wi.us/Planning/roundabouts.html ICD estimated from Google Maps linework. | 
| De Pere,
                WI Brown Co. United States | Dickinson Rd. (CTH G) / Swan Rd. (44.43908, -88.03475) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 23.0241 | Other (At-Grade) Single-Lane | 2001 | Roundabout is slightly east of the Chicago/Libal roundabout and is surrounded by businesses and East De Pere Middle School. Roundabout serves as the entrance to a medical clinic. Completed August 2001. http://www.co.brown.wi.us/Planning/roundabouts.html ICD estimated from Google Maps linework. | 
| Green Bay,
                WI Brown Co. United States | Airport Dr. (STH 172) / Airport Entrance (44.49569, -88.12467) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.1882 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | Opened October 2011. ICD estimated from Google Maps linework. | 
| Lawrence,
                KS Douglas Co. United States | W. Harvard Rd. / Grove Dr. / Mulberry Dr. (38.96701, -95.29801) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 15.7862 | Other (At-Grade) Unknown | 2005 | Built as part of Harvard Road traffic calming plan. A temporary traffic circle was in place for some time prior to permanent construction. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework. | 
| Lawrence,
                KS Douglas Co. United States | W. Harvard Rd. / Goldfield St. / Goldfield Ct. (38.96597, -95.29628) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 16.7150 | Other (At-Grade) Single-Lane | 2005 | Built as part of Harvard Road Traffic Calming plan. A Temporary traffic circle with all way Yield control was installed prior to permanent construction. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework. | 
| Lawrence,
                KS Douglas Co. United States | W. Harvard Rd. / George Williams Way (38.96404, -95.32552) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.1446 | Other (At-Grade) Single-Lane | 2005 | Built in conjunction with construction of George Williams Way. Functional Class: Collector ICD estimated from Google Maps linework. | 
| Bloomington,
                IN Monroe Co. United States | Moores Pike / Winfield Rd. (39.15027, -86.50103) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.3430 | Other (At-Grade) Single-Lane | 2005 | Completed August 2005. http://bloomington.in.gov/egov/docs/1124562196872.htm ICD estimated from Google Maps linework. | 
| Kiel,
                WI Manitowoc Co. United States | STH 67-STH 32 / STH 57 (43.90986, -88.02251) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 49.0446 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Opened November 13, 2009. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Sacramento,
                CA Sacramento Co. United States | San Juan Rd. / Azevedo Dr. (38.62740, -121.50840) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.1250 | Other (At-Grade) Single-Lane | 2004 | Constructed using asphalt curbs without reconstructing original curb/gutter/sidewalk. Tactile guide strips in crosswalks. Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| Coeur dAlene,
                ID Kootenai Co. United States | 4th St. / Margaret Ave. (47.71537, -116.77880) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.1602 | Other (At-Grade) Single-Lane | 2003 | Near high school. ICD estimated from Google Maps linework. | 
| Clearwater,
                FL Pinellas Co. United States | Palmetto St. / Casler Ave. (27.97541, -82.76752) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.0954 | Other (At-Grade) Single-Lane | 2003 | John F. Kennedy Middle School on NE corner. Crossing guard operation across N and E legs. ICD estimated from Google Maps linework. | 
| Jackson,
                MS Hinds Co. United States | John R. Lynch St. / Metro Pkwy. / Eastview St. (32.29798, -90.21458) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 45.4296 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2004 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Jackson,
                MS Hinds Co. United States | Metro Pkwy. / Prentiss St. (32.30098, -90.21120) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 51.4850 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2004 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Jackson,
                MS Hinds Co. United States | Metro Pkwy. / Dalton St. (32.30095, -90.20563) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 38.3614 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2004 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| St. Simons,
                GA Glynn Co. United States | Demere Rd. / Frederica Rd. (31.15957, -81.38859) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.9249 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | ICD estimated from Google Maps linework. | 
| Albany,
                OR Linn Co. United States | N. Albany Rd. / Gibson Hill Rd. (44.65688, -123.11730) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 23.7877 | Other (At-Grade) Single-Lane | 2005 | Completed August 2005. Four leg added to north to extend North Albany Road. ICD estimated from Google Maps linework. | 
| Kennewick,
                WA Benton Co. United States | 18th Ave. / Irving St. (46.19221, -119.19620) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.1649 | Other (At-Grade) Single-Lane | 2006 | New roads/intersection in subdivision - completed February 2006. Functional Class: Local ICD estimated from Google Maps linework. | 
| Lawrence,
                KS Douglas Co. United States | 28th St. / O'Connell Rd. (38.93372, -95.20499) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.7292 | Other (At-Grade) Single-Lane | 2004 | Built as part of Widening of OConnell Road. Orig. T intersection, east leg currently unused. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework. | 
| Highland,
                IL Madison Co. United States | US 40 / IL 160 / Poplar St. (38.75010, -89.67197) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.9832 | Other (At-Grade) Single-Lane | 2004 | Roundabout operating nicely with no accidents reported during first six months of operation. Completed October 2004. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Jackson,
                MS Hinds Co. United States | Central St. / Buena Vista Ave. (32.30306, -90.21358) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2005 | Functional Class: Local | 
| (unincorporated),
                OR Washington Co. United States | NW Verboort Rd. / Martin Rd. (45.55150, -123.07350) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.0173 | Other (At-Grade) Single-Lane | 2003 | Reverse curves on approaches. Designed as multilane roundabout, striped-out inner circulatory and entry/exit lanes. ICD estimated from Google Maps linework. | 
| Billings,
                MT Yellowstone Co. United States | Ironwood Dr. / Woodcreek Dr. (45.81641, -108.67716) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2003 | |
| Jackson,
                MS Hinds Co. United States | Metro Pkwy. / Terry Rd. / Pearl St. / Pascagoula St. (32.29912, -90.19500) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 79.2480 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | |
| Jackson,
                MS Hinds Co. United States | Metro Pkwy. / Rose St. (32.30005, -90.20143) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Elliptical shaped. ICD = 160 ft x 115 ft. | 
| Kennewick,
                WA Benton Co. United States | 27th Ave. / Vancouver St. (46.18394, -119.14850) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.4604 | Other (At-Grade) Single-Lane | 2004 | Completed November 15, 2004. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Denali National Park,
                AK Denali National Park United States | Denali National Park (63.73358, -148.91550) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.3554 | Other (At-Grade) Single-Lane | 2002 | Date estimated. ICD estimated from Google Maps linework. | 
| Kennewick,
                WA Benton Co. United States | Grandridge Blvd. / Center Pkwy. (46.22032, -119.23220) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.5746 | Other (At-Grade) Single-Lane | 2006 | Completed August 3, 2006. Functional Class: Collector ICD estimated from Google Maps linework. | 
| Kennewick,
                WA Benton Co. United States | Gage Blvd. / Center Pkwy. (46.22710, -119.23120) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 44.6169 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Sioux Falls,
                SD Minnehaha Co. United States | Career Ave. / W Nobel St. (43.59985, -96.78073) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2008 | Right-turn-only lane on north leg; added lane right-turn bypass lane on east leg. ICD estimated from Google Earth. | 
| Rexburg,
                ID Madison Co. United States | 2nd W. / 4th S. (43.81770, -111.78950) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.1941 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | ICD estimated from Google Maps linework. | 
| Honolulu,
                HI Oahu Co. United States | Likini St. / Ala Ilima St. / Ala Lilikoi St. (21.35054, -157.91460) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.4720 | Other (At-Grade) Single-Lane | 2000 | Roundabout is 500 ft from Salt Lake Elementary School. http://starbulletin.com/2000/02/28/news/story9.html ICD estimated from Google Maps linework. | 
| Charlotte,
                NC Mecklenburg Co. United States | E. 9th St. / N. Davidson St. (35.22668, -80.83273) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.9516 | Other (At-Grade) Single-Lane | 2006 | Near elementary school. ICD estimated from Google Maps linework. | 
| Modesto,
                CA Stanislaus Co. United States | Sylvan Ave. / Roselle Ave. (37.68896, -120.93980) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.2012 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Denver,
                CO Denver Co. United States | E. Lowry Blvd. / E Fairmount Dr. / Rampart Way (39.71718, -104.89580) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 49.6091 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1998 | ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Chapel Hills Dr. / Graycroft (38.97358, -104.78310) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.7125 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2002 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | E. Cheyenne Mountain Blvd. / Springmeadow Dr. (38.79132, -104.82750) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 81.9191 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Colorado Springs,
                CO El Paso Co. United States | Lake Ave. / Berthie Cir. (38.79348, -104.83950) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 16.7557 | Other (At-Grade) Single-Lane | 1995 | Year Completed unknown (before 1999). ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Lake Ave. / Old Broadmoor Rd. (38.79479, -104.83360) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 22.3405 | Other (At-Grade) Single-Lane | 1995 | Year Completed unknown (before 1999). ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Buena Vista Blvd. / Belvedere Blvd. (28.91778, -81.99953) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.3161 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Morse Blvd. / El Camino Real / Paige Pl. (28.94803, -81.95540) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 68.9771 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1998 | ICD estimated from Google Maps linework. | 
| Killingworth,
                CT Middledex Co. United States | Rte. 80 / Rte. 81 (41.35801, -72.56517) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 1997 | First rotary modification in Connecticut. 21442 | 
| North Stonington,
                CT New London Co. United States | Rte 2 / Rte 184 (41.42439, -71.86039) | Rotary Existing | All-Way Yield None | 4 Approaches 0 Driveways 103.6320 | Other (At-Grade) Single-Lane | Yield signs added 1999? | |
| Miami Springs,
                FL Miami-Dade Co. United States | DeSoto Dr. / Labaron Dr. (25.81180, -80.27770) | Traffic Calming Circle Existing | One-Way/Two-Way Stop None | 4 Approaches 0 Driveways 36.5558 | Other (At-Grade) Single-Lane | Functional Class: Local ICD estimated from Google Maps linework. | |
| The Villages,
                FL Marion Co. United States | Buena Vista Blvd. / Mulberry Ln. (28.98078, -82.01563) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 70.0001 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Marion Co. United States | Buena Vista Blvd. / Legacy Ln. (28.97006, -82.01506) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.3341 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Marion Co. United States | Buena Vista Blvd. / Belle Meade Cir. (28.96300, -82.00399) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 55.3827 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Buena Vista Blvd. / Glenview Rd. / El Camino Real (28.95271, -82.00076) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 71.0641 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1998 | ICD estimated from Google Maps linework. | 
| Miami Springs,
                FL Miami-Dade Co. United States | Pinecrest Dr. / South Dr. (25.81530, -80.28000) | Traffic Calming Circle Existing | One-Way/Two-Way Stop None | 4 Approaches 0 Driveways 43.0055 | Other (At-Grade) Single-Lane | Functional Class: Local ICD estimated from Google Maps linework. | |
| Lakewood,
                CO Jefferson Co. United States | S. Allison Pkwy. / W. Virginia Ave. (39.70705, -105.08390) | Roundabout Existing | All-Way Yield None | 4 Approaches 1 Driveways 33.9964 | Other (At-Grade) Single-Lane | 2000 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Oskaloosa,
                IA Mahaska Co. United States | Hwy 432 / Old Hwy 163 / Pella Ave. / Orchard Ave. (41.30376, -92.66716) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.8882 | Other (At-Grade) Single-Lane | 2004 | Completed April 2004. Site has sunken hole in central island with tunnels for bike path that passes under circulatory roadway. Experienced two single-vehicle crashes into sunken central island (alcohol-related). ICD estimated from Google Maps linework. | 
| Newton,
                KS Harvey Co. United States | First St. / I-135 Ramps (38.04250, -97.32240) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 65.8419 | Freeway Ramps (Grade-Separated) Single-Lane | 2003 | Single-point interchange. Previously controlled by one-way stop ICD estimated from Google Maps linework. | 
| Overland Park,
                KS Johnson Co. United States | W. 141st St. / Bluejacket St. (38.87130, -94.71130) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.6150 | Other (At-Grade) Single-Lane | 2001 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Duxbury,
                MA Plymouth Co. United States | Lincoln St. / Congress St. (42.05532, -70.72294) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 21.2829 | Other (At-Grade) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| New London,
                CT New London Co. United States | Shaw St. / Pequot Ave. / Nameaug St. / Driveway to Pfizer (41.34204, -72.09873) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.8671 | Other (At-Grade) Single-Lane | 2000 | Functional Class: Collector ICD estimated from Google Maps linework. | 
| Indianapolis,
                IN Marion Co. United States | Monument Circle [Market St. / Meridian St.] (39.76848, -86.15804) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 36.5760 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1820 | Most famous traffic circle in the State of Indiana. Completed 1820. | 
| Carmel,
                IN Hamilton Co. United States | Hazel Dell Pkwy. / E 126th St. (39.97119, -86.07069) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 1998 | |
| Carmel,
                IN Hamilton Co. United States | Hazel Dell Pkwy. / E 131st St. (39.97845, -86.07054) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 1998 | Built in late 1990s.Converted to multilane 2010-2012. Right-turn-only lane on west leg; left-turn-only lane on east leg. | 
| Carson City,
                NV Carson City Co. United States | Arrowhead Dr. / I-580 SB Ramp (39.19810, -119.77540) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.7669 | Freeway Ramps (Grade-Separated) Single-Lane | 2002 | Future SB on-ramp for Carson City Freeway (I-580). Overpass and roundabouts completed in 2002; freeway ramps completed ~2005. ICD estimated from Google Maps linework. | 
| Carson City,
                NV Carson City Co. United States | Arrowhead Dr. / I-580 NB Ramps / Imus Rd. (39.19840, -119.77380) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.6923 | Freeway Ramps (Grade-Separated) Single-Lane | 2002 | NB off-ramp for Carson City Freeway (I-580) and extension of Imus Road. Overpass and roundabouts completed in 2002. ICD estimated from Google Maps linework. | 
| Medford,
                MN Steele Co. United States | CR 12 / I-35 NB Ramps (44.17349, -93.25775) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.6872 | Other (At-Grade) Single-Lane | 2002 | Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework. | 
| East Lansing,
                MI Ingham Co. United States | Wilson Rd. / Red Cedar Rd. (42.72324, -84.48238) | Other Removed | Unknown Unknown | 4 Approaches 0 Driveways 23.6898 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Boulder,
                CO Boulder Co. United States | St. Johns St. / New Haven Ct. (Hampton Circle) (40.04742, -105.24740) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 25.5996 | Other (At-Grade) Single-Lane | 1997 | ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | Eby Creek Rd. / US 6 (39.65630, -106.82500) | Roundabout Existing | All-Way Yield Active Pedestrian Warning (flashing yellow) | 4 Approaches 0 Driveways 40.4579 | Other (At-Grade) Single-Lane | 2001 | Opened July 2001. Highway ref pt. 6-49.67. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Winchester,
                VA Frederick Co. United States | Commonwealth Ct. / (parking lot) (39.12518, -78.19009) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 28.7222 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Gypsum,
                CO Eagle Co. United States | I-70 Frontage Roads / US 6 (39.65086, -106.95510) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.3351 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Swinomish Tribal Community,
                WA Skagit Co. United States | SR 20 / Padilla Heights Rd. (48.45519, -122.51940) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.2280 | Other (At-Grade) Single-Lane | 2002 | The ground breaking ceremony was held October 2002. The client is the Swinomish Tribe. Opened October 2002. Functional Class: Local ICD estimated from Google Maps linework. | 
| East Lansing,
                MI Ingham Co. United States | Bogue St. / Wilson Rd. (42.72326, -84.47186) | Other Removed | Unknown Unknown | 4 Approaches 0 Driveways 36.8508 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Hilton Head,
                SC Beaufort Co. United States | US 278 / Pope Ave. / Greenwood Dr. / William Hilton Pkwy. (32.15560, -80.76283) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 91.0011 | Other (At-Grade) Single-Lane | 2000 | Converted rotary with large diameter. Right turn bypass lanes on all legs. Conversion Year Completed estimated (1994-2005). ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | River Rd. / East 131st St. / Longest Dr. (39.97910, -86.05145) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 79.2480 | Other (At-Grade) Single-Lane | 1997 | First roundabout in Carmel. | 
| Carmel,
                IN Hamilton Co. United States | Gray Rd. / 106th St. (39.94151, -86.08847) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.6277 | Other (At-Grade) Single-Lane | 2003 | Under construction in December 2002; completed January 2003. Intersection closed until completion. Construction cost $430,000 per Indianapolis Star article authored by Bill Ruthhart (12/05/2002). Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | Spring Mill Rd. / W. 131st St. (39.97776, -86.16474) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.2691 | Other (At-Grade) Single-Lane | 2007 | Construction planned for Spring 2003 per article in The Indianapolis Star (12/05/2002). Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | Spring Mill Rd. / W. 136th St. (39.98505, -86.16485) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.6893 | Other (At-Grade) Single-Lane | 2005 | Construction planned for Spring 2003 per article in The Indianapolis Star (12/05/2002). Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | Old Meridian St. / Pennsylvania St. (39.96796, -86.15526) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 60.9600 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2008 | |
| Carmel,
                IN Hamilton Co. United States | Old Meridian St. / 131st (Main) St. (39.97806, -86.14577) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 60.9600 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2007 | Painted spirals next to central island. Skewed intersection. | 
| Bettendorf,
                IA Scott Co. United States | 53rd Ave. / Middle Rd. (41.57538, -90.46408) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.5252 | Other (At-Grade) Single-Lane | 2002 | Right turn bypass lanes striped within roundabout. Construction cost ~$865,000. Information from website: http://www.bettendorf.lib.ia.us/publicworks/roundabout.html ICD estimated from Google Maps linework. | 
| Johnson City,
                NY Broome Co. United States | Riverside Dr. / Floral Ave. / Rte 201 Ramps (42.10678, -75.96601) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 60.9600 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2005 | http://www.dot.state.ny.us/reg/r9/cur_project/circle/about/index.html | 
| Raleigh,
                NC Wake Co. United States | Pullen Rd. / Stinson Dr. (35.78457, -78.66421) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 19.3773 | Other (At-Grade) Single-Lane | 2002 | Located on campus of North Carolina State University. Completed November 2002. Used to have Pedestrian signal located upstream of roundabout (removed in 2006) Previously controlled by one-way stop Functional Class: Local ICD estimated from Google Maps linework. | 
| Lenexa,
                KS Johnson Co. United States | 67th St. / Gleason Rd. (39.00723, -94.86295) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.3387 | Other (At-Grade) Single-Lane | 2002 | Built as part of extension of both streets -- road originally curved from the north to the east. Completed October 2002. Functional Class: Collector ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Chapel Hills Dr. / Royal Pine Dr. (38.98067, -104.77060) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 26.9242 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Reno,
                NV Washoe Co. United States | Wedekind Rd. / Clear Acre Ln. (39.55157, -119.78930) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 23.0222 | Other (At-Grade) Single-Lane | 1999 | Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| Lake Oswego,
                OR Clackamas Co. United States | SW Stafford Rd. / SW Rosemont Rd. (45.39300, -122.69020) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.7740 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| (unincorporated),
                OR Clackamas Co. United States | SW Stafford Rd. / SW Borland Rd. (45.37472, -122.70240) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.6945 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | ICD estimated from Google Maps linework. | 
| Carson City,
                NV Carson City Co. United States | E 5th St. / Fairview Dr. (39.16090, -119.72790) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.5280 | Other (At-Grade) Single-Lane | 1999 | |
| Hinesville,
                GA Liberty Co. United States | Washington Ave. / Memorial Dr. (31.84992, -81.59570) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.5366 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Brookfield,
                WI Waukesha Co. United States | Barker Rd. (CTH Y) / North Ave. (CTH M) (43.06136, -88.16629) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.9042 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | Functional Class: Arterial ICD estimated from Google Maps linework. |