Roundabouts Database Index

30321 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
Asheville, NC Buncombe Co. United States	College St. / Valley St. / Oak St. (35.59719, -82.54733)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.1343	Other (At-Grade) Single-Lane	2005	Entrance to downtown. Downtown redevelopment - "road diet". ICD estimated from Google Maps linework.
West Jordan, UT Salt Lake Co. United States	W 8020 S / (parking lots) (40.60561, -111.93990)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.3888	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Grand Junction, CO Mesa Co. United States	Main St. / 7th St. (39.06731, -108.56104)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.8912	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Riverhead, NY Suffolk Co. United States	Rte. 58 / Roanoke Ave. (40.93315, -72.67399)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.7005	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Was single-lane traffic circle. Redesigned, resigned, and restriped in 2009. ICD estimated from Google Maps linework.
Fort Montgomery, NY Orange Co. United States	US 6 / US 9W / Bear Mountain Bridge (41.32020, -73.99147)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 98.6676	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.
Bear Mountain, NY Rockland Co. United States	US 6 / Seven Lakes Dr. (41.30530, -74.03460)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 109.4564	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Squamish, BC Squamish-Lillooet District Canada	Commercial Way / Discovery Way (49.72279, -123.15057)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Home Depot retail center on one corner. Uses fishhook signs and pavement markings. Year Completed estimated (2004-2009).
Orlando, FL Orange Co. United States	Arbor Park Ln. / Village Oak Ln. (28.78793, -81.35421)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 32.4483	Other (At-Grade) Single-Lane		Part of retail shopping center/office park development. Series of three roundabouts. Functional Class: Local ICD estimated from Google Maps linework.
Orlando, FL Orange Co. United States	Arbor Park Ln. / Colonial Center Pkwy. / Colonial Grand Ln. (28.79006, -81.35422)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 29.3075	Other (At-Grade) Single-Lane		Part of retail shopping center/office park development. Series of three roundabouts. Functional Class: Local ICD estimated from Google Maps linework.
Quincy, MA Norfolk Co. United States	Washington St (Rte 3A) / Dee Rd (42.24553, -70.97224)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 66.3095	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Rotary update ICD estimated from Google Maps linework.
Hingham, MA Plymouth Co. United States	Rte. 3A (Summer St.) / Chief Justic Cushing Hwy. / Green St. (42.24615, -70.88130)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 60.1200	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.
Newport, RI Newport Co. United States	J. T. Connell Hwy. / Admiral Kalbfus Rd. (41.50703, -71.31757)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2022	Conversion from rotary to roundabout. https://www.newportthisweek.com/articles/rotary-morphing-into-a-roundabout/
Boston, MA Suffolk Co. United States	Columbia Rd. / William J. Day Blvd. (42.32172, -71.05128)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 69.7616	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.
Boston, MA Suffolk Co. United States	Willard St. / I-93 Ramps / Furnace Brook Expwy. (42.24208, -71.02673)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 99.0276	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Woburn, MA Middlesex Co. United States	I-95 Ramps / MA 38 (Main St.) (42.49945, -71.15711)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 30.8196	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Revere, MA Suffolk Co. United States	Copeland Circle [Rte 60 (Squire Rd.) / US 1 Ramps] (42.43008, -71.01710)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 381.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max)		Retrofitted (November 2018) with multi-lane approaches/departures on the Route 1 ramps and roundabout style pavement markings and signs within the circulating roadway. ICD = 1250 ft x 880 ft. 21442
Sedona, AZ Coconino Co. United States	AZ 89A / AZ 179 (34.86597, -111.76370)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.1774	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Functional Class: Arterial ICD estimated from Google Maps linework.
Hollymead, VA Albemarle Co. United States	Timberwood Blvd. / Conner Blvd. (38.13065, -78.44083)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.8813	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Hollymead, VA Albemarle Co. United States	Timberwood Blvd. / Grand Forks Blvd. (38.13111, -78.44283)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 93.9459	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE 58th Ave. (S) / SE Lincoln St. (45.50805, -122.60380)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 104.6245	Other (At-Grade) Single-Lane	1990	Completed 5/8/1990. ICD estimated from Google Maps linework.
Sacramento, CA Sacramento Co. United States	26th St. / I St. (38.57565, -121.47140)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 81.2327	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Sacramento, CA Sacramento Co. United States	24th St. / I St. (38.57636, -121.47410)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 55.0883	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Sacramento, CA Sacramento Co. United States	24th St. / H St. (38.57746, -121.47360)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 70.0264	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Sacramento, CA Sacramento Co. United States	26th St. / E St. (38.58003, -121.46950)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 15.8721	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Davis, CA Yolo Co. United States	Peter J Shields Ave. / East Quad (38.54061, -121.74820)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 16.8150	Other (At-Grade) Unknown		On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA Yolo Co. United States	Peter J Shields Ave. / West Quad (38.54028, -121.75010)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 14.9467	Other (At-Grade) Single-Lane		On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA Yolo Co. United States	California Ave. / North Quad (38.54252, -121.75300)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 20.5511	Other (At-Grade) Single-Lane		On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA Yolo Co. United States	California Ave. / Storer Mall (38.54082, -121.75250)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 13.0783	Other (At-Grade) Single-Lane		On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA Yolo Co. United States	California Ave. / Hutchison Dr. (38.53909, -121.75200)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.3015	Other (At-Grade) Single-Lane		On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local. Year Completed unknown (before 1993). ICD estimated from Google Maps linework.
Woodland, CA Yolo Co. United States	Palm Ave. / Keystone Ave. (38.68635, -121.77050)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 41.0198	Other (At-Grade) Single-Lane		Circular intersection in older neighborhood. ICD estimated from Google Maps linework.
Madison, WI Dane Co. United States	Kendall Ave. / Grand Ave. (43.07145, -89.43156)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	1997
Madison, WI Dane Co. United States	New Washburn Way / Dandaneau Trl. / Chautauqua Trl. (43.04669, -89.51501)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 13.9650	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Madison, WI Dane Co. United States	Glenway St. / Hillcrest Dr. (43.06437, -89.43896)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 11.3433	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Beaverton, OR Washington Co. United States	SW Hart Rd. / Sorrento Rd. / Juniper Terr. (45.46680, -122.80880)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1283	Other (At-Grade) Single-Lane		Functional Class: Collector. Pedestrian ramps into circulatory roadway. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE 24th Ave. / Brazee St. (45.54050, -122.64110)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	1989	Completed 10/10/1989.
Portland, OR Multnomah Co. United States	NE 24th Ave. / Thompson St. (45.53896, -122.64110)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 56.8845	Other (At-Grade) Single-Lane	1989	Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE 24th Ave. / Tillamook St. (45.53741, -122.64110)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 56.0495	Other (At-Grade) Single-Lane	1989	Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE 21st Ave. / Thompson St. (45.53898, -122.64420)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 34.2980	Other (At-Grade) Single-Lane	1989	Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE 21st Ave. / Brazee St. (45.54051, -122.64420)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 86.9974	Other (At-Grade) Single-Lane	1989	Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE 37th Ave. / Morris St. / Wisteria St. (45.54467, -122.62500)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 16.7290	Other (At-Grade) Single-Lane	1986	Completed 12/23/1986. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE 37th Ave. / Brazee St. (45.54057, -122.62500)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 119.6213	Other (At-Grade) Single-Lane	1987	Completed 10/16/1987. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE 37th Ave. / Thompson St. (45.53904, -122.62500)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 94.5285	Other (At-Grade) Single-Lane	1987	Completed 11/16/1987. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE 32nd Ave. / SE Lincoln St. (45.50825, -122.63270)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 12.5549	Other (At-Grade) Single-Lane	1990	Completed 4/25/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE 30th Ave. / SE Caruthers St. (45.50550, -122.63470)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 78.6812	Other (At-Grade) Single-Lane	1990	Completed 4/23/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE 31st Ave. / SE Clinton St. (45.50354, -122.63360)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 14.2301	Other (At-Grade) Single-Lane	1990	Completed 6/22/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE 23rd Ave. / SE Clinton St. (45.50339, -122.64260)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 31.8085	Other (At-Grade) Single-Lane	1990	Completed 6/22/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE 37th Ave. / SE Lincoln St. (45.50806, -122.62570)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 15.0659	Other (At-Grade) Single-Lane	1990	Completed 4/25/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE 43rd Ave. / SE Lincoln St. (45.50799, -122.61810)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 22.5989	Other (At-Grade) Single-Lane	1990	Completed 4/23/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE 51st Ave. / SE Lincoln St. (45.50803, -122.61000)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 15.0659	Other (At-Grade) Single-Lane	1990	Completed 4/23/1990. ICD estimated from Google Maps linework.
Eno, CO Adams Co. United States	Kittredge St. / E. 107th Ave. (39.89114, -104.80140)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.3237	Other (At-Grade) Single-Lane	2006	Functional Class: Local ICD estimated from Google Maps linework.
Oshkosh, WI Winnebago Co. United States	Jackson St. / Murdock Ave. (44.03947, -88.54265)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2010
Seattle, WA King Co. United States	34th Ave. SW / SW Elmgrove St. (47.53009, -122.37530)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Edmonton, AB Edmonton Capital Region Canada	107th Ave. / 142nd St. NW (53.55102, -113.56580)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 81.5992	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Hilliard, OH Franklin Co. United States	Britton Pkwy. / Hayden Run Rd. (40.06202, -83.13750)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	ICD = 160 feet in one-lane section, 180 in two-lane section.
Hilliard, OH Franklin Co. United States	Britton Pkwy. / Riggins Rd. (40.06493, -83.13857)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8637	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2006	Converted from 2x2 roundabout to a 2x1 roundabout in 2020 by changing the EB and WB thru/right lanes to RT only lanes.
Eno, CO Adams Co. United States	Memphis St. / E. 105th Way (39.88830, -104.79660)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.8265	Other (At-Grade) Single-Lane	2006	Functional Class: Local ICD estimated from Google Maps linework.
West Roxbury, MA Suffolk Co. United States	W. Roxbury Pkwy. / Centre St. (42.28730, -71.14774)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 68.9162	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Tumwater, WA Thurston Co. United States	Tumwater Blvd. / New Market St. (46.97971, -122.91320)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.7052	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Functional Class: Arterial ICD estimated from Google Maps linework.
Medford, OR Jackson Co. United States	Highland Dr. / Siskiyou Blvd. (42.32110, -122.84986)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2006	Elliptical shaped. ICD = 140 ft x 125 ft. Fire station on south leg.
Yelm, WA Thurston Co. United States	SR 510 / Mud Run Rd. SE (46.96465, -122.63230)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8630	Other (At-Grade) Single-Lane	2010	October 2010. ICD estimated from Google Maps linework.
Mendon, NY Monroe Co. United States	NY 65 / NY 251 (42.99061, -77.57766)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8180	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Linton Hall, VA Prince William Co. United States	Tartan Hills Pkwy (VA 3254) / Broadsword Dr. (VA 3256) (38.74232, -77.58066)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.9462	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Linton Hall, VA Prince William Co. United States	Braemar Pkwy. (VA 3080) / Iona Sound Dr. (VA 3089) (38.73510, -77.56889)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 46.5816	Other (At-Grade) Single-Lane	1999	Year Completed estimated (1994-2002). ICD estimated from Google Maps linework.
Amherst, VA Amherst Co. United States	US 60 / US 29 (37.58815, -79.04990)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.2314	Other (At-Grade) Single-Lane	2004	Constructed in 1936, upgraded in 1940 and again in 2004. ICD estimated from Google Maps linework.
Port St. Lucie, FL St. Lucie Co. United States	SE Westmoreland Blvd. / Morningside Blvd. (27.25997, -80.30961)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.8991	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Spokane, WA Spokane Co. United States	SR 206 (Mt. Spokane Park Dr.) / Bruce Rd. (47.78761, -117.30400)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.3076	Other (At-Grade) Single-Lane	2005	http://www.wsdot.wa.gov/Projects/SR206/BruceRoadRoundabout/. Opened December 2005. Previously controlled by 2-way stop control ICD estimated from Google Maps linework.
Spokane, WA Spokane Co. United States	Wellesley Ave. / A St. (47.70076, -117.45400)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.7401	Other (At-Grade) Single-Lane	2005	Opened October 2005. ICD estimated from Google Maps linework.
Petaluma, CA Sonoma Co. United States	Casa Grande Rd. / Ely Blvd. (38.24348, -122.59580)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.8924	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	W Riverwood Blvd. / W Kirby Ave. (33.41608, -112.27480)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 16.9473	Other (At-Grade) Single-Lane	2002	Painted splitter islands. ICD estimated from Google Maps linework.
Cottonwood, AZ Yavapai Co. United States	AZ 89A / Avenida Centerville (34.75854, -112.05880)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.0983	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Clarkdale, AZ Yavapai Co. United States	AZ 89A / Cement Plant Rd. / Clarkdale Pkwy. (34.76220, -112.06416)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Series of 5 roundabouts. Yield-controlled right-turn bypass lane on east leg. Year Completed estimated (2007-2009).
Cottonwood, AZ Yavapai Co. United States	AZ 89A / Groseta Ranch Rd. (34.74706, -112.04510)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.1235	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Cottonwood, AZ Yavapai Co. United States	AZ 89A / Lisa St. / Lincoln Dr. (34.75449, -112.05400)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0444	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	16th Ave. E. / E. Spring St. (47.61154, -122.31150)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 8.8568	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	15th Ave. E. / E. Spring St. (47.61155, -122.31280)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 44.2838	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	16th Ave. E. / E. Marion St. (47.61037, -122.31150)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 9.6621	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	17th Ave. E. / E. Marion St. (47.61036, -122.31020)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 6.4414	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Ashworth Ave. N / N 137th St. (47.72868, -122.33970)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 14.4604	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Wallingford Ave. N / N 137th St. (47.72868, -122.33690)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 12.8537	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Hollymead, VA Albemarle Co. United States	Ashwood Blvd. / Stratford Glen / Chimney Rd. (38.10672, -78.43133)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 22.5545	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Bedford, VA Bedford Co. United States	London Park Dr. / Meade Rd. / Meadow Down Dr. (37.30592, -79.33699)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2006	https://www.wdbj7.com/2020/07/28/meade-road-extension-to-be-completed-soon/
New Orleans, LA Orleans Par. United States	Lee Circle (St. Charles Ave. / Andrew Higgins Dr.) (29.94333, -90.07247)	Signalized Roundabout/Circle Existing	Other None	4 Approaches 0 Driveways 99.3513	Other (At-Grade) Unknown		Two tram lines run along the circulatory roadway. Some entry-circulating points are fully signalized; others are yield-controlled. ICD estimated from Google Maps linework.
Metairie Terrace, LA Jefferson Par. United States	Causeway Blvd. (LA 3046) / US 61 (Airline Hwy.) (29.97476, -90.15636)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 107.5965	Other (At-Grade) Unknown		Single-point interchange using one circle. Entire circle is on causeway structure over railroad yards. ICD estimated from Google Maps linework.
Pittsfield Township, MI Washtenaw Co. United States	Campus Pkwy. / Suncrest Dr. / (parking) (42.18764, -83.74729)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2002
Pittsfield Township, MI Washtenaw Co. United States	Campus Pkwy. / Community Dr. (42.18982, -83.74387)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2002
Meridian Township, MI Ingham Co. United States	Hulett Rd. / Bennett Rd. (42.69739, -84.44709)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.9884	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Manistee, MI Manistee Co. United States	Lakeshore Dr. / Monroe St. / Cottage Ln. (44.25355, -86.33302)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 45.3388	Other (At-Grade) Single-Lane	1992	Before 1993. No splitter islands on east leg. ICD estimated from Google Maps linework.
Jensen Beach, FL Martin Co. United States	SR 707 / Pineapple Dr. / Jensen Beach Causeway (27.25074, -80.22818)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.7914	Other (At-Grade) Single-Lane	1999	RT only lanes entering roundabout on two approaches. ICD estimated from Google Maps linework.
Brighton, MI Livingston Co. United States	Village Place Blvd. / Green Oak Dr. / Fieldcrest Dr. (42.50573, -83.75296)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2006
Brighton, MI Livingston Co. United States	Village Place Blvd. / Green Oak Ave. (42.50698, -83.75462)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	ICD estimated from Google Earth.
Ancaster, ON Hamilton Canada	Wilson St. / Meadowbrook Dr. / Hamilton Dr. (43.20797, -80.00224)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.6911	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Markham, ON York Region Canada	Prospectors Dr. / Angus Glen Blvd. (43.89075, -79.31981)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.2641	Other (At-Grade) Single-Lane	2004	Functional Class: Local ICD estimated from Google Maps linework.
Markham, ON York Region Canada	Prospectors Dr. / The Fairways (43.89400, -79.32079)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.0985	Other (At-Grade) Single-Lane	2004	Functional Class: Local ICD estimated from Google Maps linework.
Richmond, VA Henrico Co. United States	Monument Ave. / Allen Ave. (37.55384, -77.46020)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 74.8004	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Richmond, VA Henrico Co. United States	Stuart Circle (37.55246, -77.45788)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 35.9806	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Greensboro, NC Guilford Co. United States	Greene St. / McGee St. (36.06852, -79.79192)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.2386	Other (At-Grade) Single-Lane	2006	This is part of a major transformation of Greene Street in Downtown Greensboro. Greene Street is currently 4 lanes one-way and will be converted to 2-way traffic with one lane in each direction and angled parking in the middle of the street separated by a median. Functional Class: Arterial ICD estimated from Google Maps linework.
Boise, ID Ada Co. United States	S. Touchmark Way / E. Louise Dr. (43.60317, -116.34880)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 29.4050	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Boise, ID Ada Co. United States	S. Touchmark Way / S. Worth Way (43.60206, -116.34610)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 30.2704	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Gaithersburg, MD Montgomery Co. United States	Kentlands Blvd. / Main St. (39.12333, -77.23855)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x1 max)	1994	Year Completed estimated (1993-2002).
Gaithersburg, MD Montgomery Co. United States	Kentlands Blvd. / Market St. (39.12309, -77.23489)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Multilane (2 Lane, 2x1 max)	1994	Year Completed estimated (1993-2002).