Roundabouts Database Index

30320 Results

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City, State County Country	Intersection (Lat, Lng)	Type Status	Control Type / Other Control Type	Approaches / Driveways / ICD (m)	Functional Class / LaneType	Year Completed	Comments
Clemmons, NC Forsyth Co. United States	Styers Ferry Rd. / Utility Dr. (River Ridge Roundabout) (36.07380, -80.39124)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9598	Other (At-Grade) Single-Lane	2002	Built by developer. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Willimantic, CT Windham Co. United States	Eastern Rd. / (driveway) (ECSU Campus by clock tower) (41.72001, -72.21691)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 24.0693	Other (At-Grade) Single-Lane	1999	Not properly signed and painted, but lots of potential for demonstrating this intersection concept. ICD estimated from Google Maps linework.
Stafford Springs, CT Tolland Co. United States	Rte 32 / Rte 190 (41.95362, -72.30314)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 18.6523	Other (At-Grade) Multilane (2 Lane, unspecified)	1890	Believed by some to be improperly signed and painted, though some roundabout features have been added in the past 10 years. Near railroad crossing. Year Completed estimated (1890?). ICD estimated from Google Maps linework.
Seward, NE Seward Co. United States	7th St. / 6th Ave. / 8th Ave. (40.91742, -97.10029)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 37.9050	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Brookfield, IL Cook Co. United States	Grand Blvd. / Washington St. (41.82755, -87.85150)	Other Existing	Unknown Unknown	8 Approaches 0 Driveways 41.8281	Other (At-Grade) Single-Lane		I am a chauffuer in the Chicago area and I use this roundabout frequently when traveling from the West Suburbs to Midway Airport. Only real traffic is on Grand Blvd at this intersection but it is in a downtown shopping district in Brookfield (13 mi WSW of Functional Class: Local ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	E. Brigham Rd. / I-15 SB Ramps / Pioneer Rd. (37.05999, -113.58560)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 78.1526	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2006	Combines interchange ramps and frontage road. ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	21st Ave. E / E. Republican St. (47.62320, -122.30470)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 5.6349	Other (At-Grade) Unknown	2006	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.
Urbana, MD Frederick Co. United States	Bennett Creek Ave. / Bennett Creek Blvd. (39.32256, -77.34935)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.8808	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Chattanooga, TN Hamilton Co. United States	US 41 - US 76 - SR 8 (Westside Dr.) / 29th St. (35.00944, -85.27164)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 21.5209	Other (At-Grade) Single-Lane	2001	Completed September 26, 2001. The intersection is located at the western portal of the Bachman Tunnel, a two-lane tunnel through Missionary Ridge, connecting Chattanooga with the City of East Ridge, Tennessee. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Williston, VT Chittenden Co. United States	Maple Tree Pl. / Sycamore Dr. (44.44349, -73.10966)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.1697	Other (At-Grade) Single-Lane	2001	Completed November 2001. Major shopping area, road part of the planned ring road around Taft Corner. Functional Class: Local ICD estimated from Google Maps linework.
Bend, OR Deschutes Co. United States	SW Industrial Way / SW Wall St. (44.05050, -121.31750)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.9023	Other (At-Grade) Single-Lane	2003	Wall St. is one-way southbound into the roundabout. Roundabout is raindrop-shaped to prevent eastbound to northbound movements. Dogbone/peanut shape. ICD estimated from Google Maps linework.
Bend, OR Deschutes Co. United States	SW Industrial Way / SW Bond St. (44.05040, -121.31630)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.6191	Other (At-Grade) Single-Lane	2003	Bond St. is one-way northbound out of the roundabout. Roundabout has raindrop-shaped central island, as no westbound to southbound movements are needed. Dogbone/peanut shape. ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Beech Ave. / 1st St. (38.79048, -104.84660)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 42.8219	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Lake Ave. / Lake Cir. (38.79144, -104.84880)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.2724	Other (At-Grade) Single-Lane	1995	Year Completed estimated (before 1999). ICD estimated from Google Maps linework.
The Villages, FL Sumter Co. United States	Buena Vista Blvd. / Rainey Tr. (28.91345, -81.99847)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.3183	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Rigden Pkwy. / Custer Dr. (40.54863, -105.02960)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.9307	Other (At-Grade) Single-Lane	2001	Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Stanton Creek Dr. / St. Thomas Dr. (40.49066, -105.05590)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 24.5241	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Stanton Creek Dr. / Tortola Way (40.48999, -105.05430)	Traffic Calming Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 25.4327	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Cuerto Ln. / (unknown) (40.57718, -105.13330)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 26.3067	Other (At-Grade) Single-Lane	2005	Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Tierra Ln. / Saddle Ridge Condominiums (40.57545, -105.13140)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 28.1217	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Oval Dr. (Howes St. / Plum St. / Isotope Dr. / East Dr. / Music Dr.) (40.57639, -105.08070)	Other Existing	Unknown Unknown	6 Approaches 0 Driveways 19.0499	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA Yolo Co. United States	Moore Blvd. / Rockwell Dr. (38.56830, -121.72630)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.2127	Other (At-Grade) Single-Lane	1999	Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA Yolo Co. United States	Moore Blvd. / Wright Blvd. (38.56490, -121.71860)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.2801	Other (At-Grade) Single-Lane	1999	Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Anchorage, AK Anchorage United States	Southport Dr. / Maritime Loop / Washington Ave. (61.12706, -149.92590)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.9886	Other (At-Grade) Single-Lane	2001	The first winter resulted in several accidents, including the loss of a number of light poles around the circle. In response, minor modifications were made to the roundabout in 2002. ICD estimated from Google Maps linework.
Fort Wayne, IN Allen Co. United States	Adams Center Rd. / Marion Center Rd. / Maples Rd. / Wayne Terrace (41.00440, -85.05704)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 57.9120	Other (At-Grade) Single-Lane	1995	Painted splitter islands. Year Completed estimated (before 1998).
Bloomington, IN Monroe Co. United States	High St. / Winslow Rd. / Rogers Rd. (39.13631, -86.50819)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.9078	Other (At-Grade) Single-Lane	1999	$497,000 construction cost. ICD estimated from Google Maps linework.
Mount Pleasant, SC Charleston Co. United States	Rifle Range Rd. / Bowman Rd. (Veterans Circle) (32.80469, -79.84284)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.1197	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1994-2002) ICD estimated from Google Maps linework.
Encinitas, CA San Diego Co. United States	Leucadia Blvd / Hymettus Ave (33.06470, -117.29620)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 21.0192	Other (At-Grade) Single-Lane	2004	Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Malta, NY Saratoga Co. United States	Rte 67 (Dunning St.) / State Farm Pl. (42.96991, -73.80676)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 43.6952	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Encinitas, CA San Diego Co. United States	Leucadia Blvd / Hermes Ave (33.06482, -117.30010)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 18.0164	Other (At-Grade) Single-Lane	2004	Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Normal, IL McLean Co. United States	Beaufort St. / North St. (40.50929, -88.98440)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Single-Lane	2009	Both a traffic solution and centerpiece for significant downtown redevelopment. Pedestrian access to central island. Completed Fall 2009. https://www.landscapeperformance.org/case-study-briefs/uptown-normal-circle-and-streetscape
Amelia Island, FL Nassau Co. United States	SR A1A / Beach Lagoon Rd. (30.55541, -81.44933)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2001	Elliptical shape. ICD = 125 ft x 105 ft. Year Completed estimated (1999-2003).
The Villages, FL Sumter Co. United States	Buena Vista Blvd. / Old Mill Run (28.90720, -81.98250)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 57.5036	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Bypass lane for southbound through movement in addition to two entry lanes. ICD estimated from Google Maps linework.
The Villages, FL Sumter Co. United States	Morse Blvd. / Mariposa Way / Mission Hills Run (28.91829, -81.96940)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.4974	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	ICD estimated from Google Maps linework.
London, ON Middlesex County Canada	Lambton Dr. / Oxford Dr. (43.00616, -81.27515)	Traffic Calming Circle Existing	Unknown Unknown	5 Approaches 0 Driveways 38.4291	Other (At-Grade) Single-Lane		Constructed sometime in the 1970s. Functional Class: Local ICD estimated from Google Maps linework.
Hartland, MI Livingston Co. United States	Hartland Rd. / Rovey Dr. (42.63682, -83.74883)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.6594	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Bayview Rd. / Slidell St. / Burnside Ave. (45.40958, -75.72880)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5384	Other (At-Grade) Single-Lane	2010	Functional Class: Collector ICD estimated from Google Maps linework.
Davis, CA Yolo Co. United States	Anderson Rd. / Alvarado Ave. (38.56210, -121.75850)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.2149	Other (At-Grade) Single-Lane	1997	Moderate to high pedestrian and bicycle volume. Located in residential area frequented by commuters to University of California at Davis. ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	E. Via Linda / E. San Rafael Dr. (33.56711, -111.89565)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 18.2880	Other (At-Grade) Single-Lane		ICD estimated from Google Earth.
Arcata, CA Humboldt Co. United States	12th St. / I St. (40.87160, -124.08700)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 48.7687	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Goshen, CT Litchfield Co. United States	Rte. 4 / Rte. 63 (41.83185, -73.22539)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-Lane	2002	Painted splitter islands.
Rochester, MI Oakland Co. United States	Tienken Rd. / Runyon Rd. / Washington Rd. (42.69743, -83.11135)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.0105	Other (At-Grade) Single-Lane	1999	Total cost: $353,000. Completed July 1999. Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA Humboldt Co. United States	13th St. / J St. (40.87260, -124.08780)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 11.7404	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Rutherford, NJ Bergen Co. United States	Park Ave. / Erie Ave. (40.82835, -74.10118)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.0152	Other (At-Grade) Single-Lane	2004	Reconstructed as roundabout in 2004? ICD estimated from Google Maps linework.
Maplewood, NJ Essex Co. United States	Midland Blvd. / Highland Ave. (40.73043, -74.25748)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 83.2644	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Maplewood, NJ Essex Co. United States	Midland Blvd. / Norfolk Ave. (40.73111, -74.25972)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 16.2907	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Princeton, NJ Mercer Co. United States	Faculty Rd. / Elm Dr. (40.33888, -74.65523)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.2209	Other (At-Grade) Single-Lane	2001	This roundabout is on University owned roads open to the public. There is a second roundabout similar in dimensions upstream on Elm Drive. Close to an at-grade rail crossing. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Belmar, NJ Monmouth Co. United States	10th Ave. / B St. (40.17772, -74.01782)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Belmar, NJ Monmouth Co. United States	10th Ave. / D St. (40.17855, -74.02169)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Summit, NJ Union Co. United States	Union Pl. / Beechwood Rd. (40.71691, -74.35757)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 19.0099	Other (At-Grade) Single-Lane		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.
Lakewood, CO Jefferson Co. United States	Allison Pkwy. / Civic Center (39.70906, -105.08630)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 31.2390	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	Arbutus Dr. / W. 2nd Pl. (39.71649, -105.14750)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.5609	Other (At-Grade) Single-Lane	2001	Functional Class: Collector ICD estimated from Google Maps linework.
Coral Gables, FL Miami-Dade Co. United States	Ponce de Leon Blvd. / Greco Ave. / Ruiz Ave. (25.73047, -80.25832)	Roundabout Existing	All-Way Yield Unknown	6 Approaches 0 Driveways 49.4917	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	ICD estimated from Google Maps linework.
Hyannis, MA Barnstable Co. United States	Iyannough Rd. / Barnstable Rd. / Falmouth Rd. (41.66512, -70.28732)	Rotary Existing	Unknown Unknown	0 Approaches 0 Driveways 87.4371	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Greenbelt, MD Prince Georges Co. United States	Hanover Pkwy. / Village Park Dr. / Schrom Hills Community Park entrance (38.98378, -76.87333)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.4960	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1994-2001). ICD estimated from Google Maps linework.
Superior, CO Boulder Co. United States	5th Ave. / Center Dr. (39.95764, -105.17190)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.1262	Other (At-Grade) Single-Lane	1999	Serves Costco and Target as part of 750,000 square foot shopping center. Functional Class: Local ICD estimated from Google Maps linework.
Windsor, CO Weld Co. United States	Westgate Dr. / Oakmond St. (40.48121, -104.98870)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2020	Year Completed estimated (2019-2021). Opened 1999-2004 as single-lane cul-de-sac with south leg and stubs on west and east legs and no evidence of traffic control; the outer portions of circulatory roadway were striped out. Converted to 2x1 roundabout 2019-2021 with addition of north leg.
Henrietta, NY Monroe Co. United States	Andrews Memorial Dr. / Lomb Memorial Dr. (43.08770, -77.67448)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 35.7614	Other (At-Grade) Single-Lane	2003	On campus of Rochester Institute of Technology. ICD estimated from Google Maps linework.
Linton Hall, VA Prince William Co. United States	Tartan Hills Pkwy. / Native Rocks Dr. / Seagate Way (38.74593, -77.58755)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1911	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Parkville, MO Platte Co. United States	National Dr. / Ridge Rd. (39.21333, -94.70781)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 49.9696	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Portsmouth, VA N/A Co. United States	Crawford St. / Bart St. (36.83202, -76.29770)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.8849	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Chapel Hills Dr. / Divot Trl. (38.97569, -104.77560)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.7116	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Functional Class: Arterial 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.
Fruita, CO Mesa Co. United States	Aspen Ave. / Mesa St. (Park Square) (39.15884, -108.73360)	Other Existing	Unknown Unknown	0 Approaches 0 Driveways 77.7908	Other (At-Grade) Unknown		Completed 1940? 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.
La Conner, WA Skagit Co. United States	LaConner-Whitney Rd. / Chilberg Rd. / Morris Sr. (48.39234, -122.48660)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.5504	Other (At-Grade) Single-Lane	2003	Roundabout replaces a Y intersection. The center island is under private ownership and contains an exisitng granite monument. Opened September 2003. Previously controlled by one-way stop Functional Class: Arterial 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.
Greeley, CO Weld Co. United States	Promontory Cir. / W 16th St. / (parking) (40.41524, -104.85540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	Part of 6 in vicinity.
Hutchinson, KS Reno Co. United States	23rd Ave. / Severence St. (38.07940, -97.91340)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.7846	Other (At-Grade) Single-Lane	2000	Near the state fairgrounds in Hutchinson Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Garnett, KS Harvey Co. United States	US 59 / US 169 (38.25832, -95.24861)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.8910	Other (At-Grade) Single-Lane	2006	None. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Newton, KS Harvey Co. United States	Broadway St. / I-135 Ramps (38.05000, -97.32250)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.1441	Freeway Ramps (Grade-Separated) Single-Lane	2003	Single-point interchange. Near roundabout interchange at I-135/1st Street. Roundabout completed January 2002, ramps from I-135 to the roundabout reopened March 2002. Eliptical structure incorporating both NB and SB ramps. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Lenexa, KS Johnson Co. United States	Prairie Star Pkwy / Montecello Rd. (38.95251, -94.84398)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.0123	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Functional Class: Arterial ICD estimated from Google Maps linework.
Paola, KS Miami Co. United States	K-68 / Old Kansas City Rd. / Hedge Ln. (38.62133, -94.85551)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 44.7895	Other (At-Grade) Single-Lane	2001	First roundabout on rural, high-speed facility in Kansas. Functional Class: Arterial ICD estimated from Google Maps linework.