Roundabouts Database Index

11317 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
Lakewood, CO Jefferson United States	Arbutus Dr. / Red Rocks Community College (39.71903, -105.14840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.7465	Other Single-Lane	2001	Functional Class: Collector ICD estimated from Google Maps linework.
St. Simons, GA Glynn United States	Frederica Rd. / Lawrence Rd. (31.21650, -81.37550)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.8563	Other Single-Lane	2006	ICD estimated from Google Maps linework.
Wall, NJ Monmouth United States	NJ 35 / Atlantic Ave. (Brielle Circle) (40.13232, -74.06525)	Rotary Existing	Other Unknown	4 Approaches 0 Driveways 129.6649	Other Single-Lane		Traffic circle conversion ICD estimated from Google Maps linework.
Southampton, NJ Burlington United States	US 206 / NJ 70 (Red Lion Circle) (39.88715, -74.74104)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 136.5464	Other Single-Lane		Traffic circle conversion Functional Class: Arterial ICD estimated from Google Maps linework.
Washington, DC N/A United States	Dupont Circle (Mass Ave. / Conn. Ave. / New Hampshire Ave.19th St. / P St.) (38.90965, -77.04344)	Signalized Roundabout/Circle Existing	Signal None	10 Approaches 0 Driveways 137.5441	Other Multilane (2 Lane)		ICD estimated from Google Maps linework.
Washington, DC N/A United States	Washington Circle (Penn. Ave. / New Hampshire Ave. / 23rd St. / K St.) (38.90252, -77.05010)	Signalized Roundabout/Circle Existing	Signal None	8 Approaches 0 Driveways 119.8984	Other Multilane (2 Lane)		ICD estimated from Google Maps linework.
Washington, DC N/A United States	Scott Circle (Mass. Ave. / Rhode Isl. Ave. / 16th St. / N St.) (38.90725, -77.03654)	Signalized Roundabout/Circle Existing	Signal None	6 Approaches 0 Driveways 51.1161	Other Multilane (2 Lane)		ICD estimated from Google Maps linework.
Washington, DC N/A United States	Logan Circle (Rhode Isl. Ave. / Vermont Ave. / 13th St. / P St.) (38.90965, -77.02963)	Signalized Roundabout/Circle Existing	Signal None	5 Approaches 0 Driveways 120.8157	Other Multilane (2 Lane)		ICD estimated from Google Maps linework.
Washington, DC N/A United States	Thomas Circle (Mass Ave. / Vermont Ave. / 14th St. / M St.) (38.90565, -77.03196)	Signalized Roundabout/Circle Existing	Signal None	6 Approaches 0 Driveways 75.2817	Other Multilane (2 Lane)		ICD estimated from Google Maps linework.
Washington, DC N/A United States	Sheridan Circle (Mass Ave. / 23rd St. / R St.) (38.91214, -77.05065)	Rotary Existing	Uncontrolled None	0 Approaches 0 Driveways 69.6989	Other Multilane (2 Lane)		Functional Class: Arterial ICD estimated from Google Maps linework.
Washington, DC N/A United States	Westmoreland Circle (Mass. Ave. / Dalecarlia Pkwy / Western Ave.) (38.94892, -77.10097)	Rotary Existing	Uncontrolled None	6 Approaches 0 Driveways 82.6665	Other Multilane (2 Lane)		Functional Class: Arterial ICD estimated from Google Maps linework.
Washington, DC N/A United States	Ward Circle (Mass. Ave. / Nebraska Ave.) (38.93792, -77.08590)	Signalized Roundabout/Circle Existing	Signal None	0 Approaches 0 Driveways 80.8214	Other Multilane (2 Lane)		ICD estimated from Google Maps linework.
Washington, DC N/A United States	Chevy Chase Circle (Conn. Ave. / Western Ave.) (38.96761, -77.07716)	Signalized Roundabout/Circle Existing	Signal None	0 Approaches 0 Driveways 88.2163	Other Multilane (2 Lane)		ICD estimated from Google Maps linework.
Washington, DC N/A United States	Tenley Circle (Nebraska Ave. / Wisconsin Ave. / Yuma St.) (38.94628, -77.07875)	Signalized Roundabout/Circle Existing	Signal None	0 Approaches 0 Driveways 73.3809	Other Multilane (2 Lane)		ICD estimated from Google Maps linework.
Washington, DC N/A United States	Sherman Circle (Kansas Ave. / Illinois Ave. / Crittenden St.) (38.94733, -77.02190)	Rotary Existing	All-Way Stop None	6 Approaches 0 Driveways 89.1704	Other Multilane (2 Lane)		Functional Class: Arterial ICD estimated from Google Maps linework.
Washington, DC N/A United States	Grant Circle (New Hampshire Ave. / Illinois Ave. / Varnum St. / NW 5th St.) (38.94312, -77.01926)	Rotary Existing	All-Way Stop None	8 Approaches 0 Driveways 120.7587	Other Multilane (2 Lane)		Functional Class: Arterial ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	NE Cesar E Chavez Blvd. (NE 39th Ave.) / NE Glisan St. (45.52640, -122.62300)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 68.6113	Other Multilane (2 Lane)		Stop-controlled entries into circle. Bus stop within circulatory roadway. Historical rotary with stop control. ICD estimated from Google Maps linework.
Beaverton, OR Washington United States	SW Teal Blvd. / SW 155th Ave. / SW Nutcracker Ct. (45.44060, -122.83760)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 37.7099	Other Single-Lane		Characteristics of a roundabout, but yield signs replaced with stop signs in 1998. ICD estimated from Google Maps linework.
Berkeley, CA Alameda United States	Marin Ave. / Los Angeles Ave. / Del Norte St. / Arlington Ave. (37.89015, -122.27240)	Other Existing	Two-Way Stop None	6 Approaches 0 Driveways 25.4489	Other Single-Lane		Free movement on Marin Ave.; rest are stop-controlled ICD estimated from Google Maps linework.
Clackamas, OR Clackamas United States	Monterey Ave. / Stevens Rd. (45.43780, -122.56390)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.8738	Other Single-Lane	2006	Fourth leg serves New Hope Community Church parking lot. ICD estimated from Google Maps linework.
Abingdon, MD Harford United States	Tollgate Rd. / Montrose Way (39.48198, -76.32751)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5762	Other Single-Lane	2003	Elementary school and library to north, another school to south. Functional Class: Collector ICD estimated from Google Maps linework.
Arcata, CA Humboldt United States	West End Rd. / Spear Ave. / Saint Louis Rd. (40.88910, -124.08210)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.0866	Other Single-Lane	1998	Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA Humboldt United States	Samoa Blvd. / Union St. (40.86140, -124.07730)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.2273	Other Single-Lane	1999	Functional Class: Arterial ICD estimated from Google Maps linework.
Bel Air, MD Harford United States	Tollgate Rd. / Westover Ln. / Crisfield Dr. (39.46859, -76.32162)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.7377	Other Single-Lane	2002	http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Arcata, CA Humboldt United States	Samoa Blvd. / Buttermilk Ln. (40.85710, -124.07250)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.1329	Other Single-Lane	1999	Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA Humboldt United States	Guintoli Ln. / US 101 SB Ramps (40.90400, -124.08920)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.7180	Freeway Ramps Single-Lane	2005	ICD estimated from Google Maps linework.
Canmore, AB Central Alberta Canada	Three Sisters Pkwy. / Stewart Creek Dr. (51.05031, -115.31370)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.7860	Other Single-Lane	2008	ICD estimated from Google Maps linework.
Arcata, CA Humboldt United States	Guintoli Ln. / US 101 NB Ramps (40.90492, -124.08510)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.3015	Freeway Ramps Single-Lane	2005	ICD estimated from Google Maps linework.
Durango, CO La Plata United States	Florida Rd. / Riverview Dr. (37.28319, -107.86900)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4086	Other Single-Lane	2010	ICD estimated from Google Maps linework.
Durango, CO La Plata United States	CR 238 / Fort Lewis Dr. / College Dr. (37.27940, -107.85940)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.7643	Other Single-Lane	2007	ICD estimated from Google Maps linework.
Durango, CO La Plata United States	(Mercy Regional Medical Center ring road) / (unknown) (37.23677, -107.82050)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.2308	Other Single-Lane	2006	ICD estimated from Google Maps linework.
Visalia, CA Tulare United States	Houston Ave. / Santa Fe St. / NE 3rd Ave. (36.34183, -119.28780)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 50.9874	Other Single-Lane	2010	ICD estimated from Google Maps linework.
Durango, CO La Plata United States	(Mercy Regional Medical Center entrance drive) / (ring road) (37.23339, -107.82310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.6431	Other Multilane (2 Lane)	2006	Functional Class: Arterial ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	NW 25th Ave. / NW Quimby St. (45.53328, -122.70277)	Neighborhood Traffic Circle Existing	Two-Way Stop None	3 Approaches 0 Driveways 15.8958	Other Single-Lane	1988	Completed 9/30/1988. ICD estimated from Google Maps linework.
Carmel, IN Hamilton United States	Old Meridian St. / Grand Blvd. (39.97366, -86.14984)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7631	Other Multilane (2 Lane)	2008	ICD estimated from Google Maps linework.
Port Orchard, WA Kitsap United States	Mile Hill Dr. (Hwy 166) / Bethel Ave. (47.53467, -122.62730)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.7045	Other Single-Lane	1998	Previously a Y Intersection. Opened June 1998. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Malta, NY Saratoga United States	Rte 67 (Dunning St.) / I-87 NB Ramps (42.97052, -73.80057)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.9470	Other Multilane (2 Lane)	2006	Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Modesto, CA Stanislaus United States	La Loma / James St. / G St. (37.64360, -120.98740)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 34.0452	Other Single-Lane	1997	Permanent installation with landscaping in place Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Clackamas, OR Clackamas United States	Monterey Ave. / Causey Ave. / William Otty Rd. (45.44020, -122.55510)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.7102	Other Single-Lane	2004	ICD estimated from Google Maps linework.
Montréal, QC Montréal Region Canada	Ave. Marie-Curie / Blvd. Alfred Nobel (45.48518, -73.76222)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.6801	Other Multilane (2 Lane)	1998	Completed November 1998. Functional Class: Collector ICD estimated from Google Maps linework.
(unincorporated), OR Clackamas United States	SE 147th Ave. / Oregon Trail Dr. / Hines Dr. / Sieben Pkwy. (45.42280, -122.51240)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 34.3688	Other Single-Lane		ICD estimated from Google Maps linework.
Bend, OR Deschutes United States	SW Century Dr. / SW Colorado Ave. / SW Chandler Ave. (44.04180, -121.33200)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.9120	Other Single-Lane	1999	Completed Fall 1999. One leg comes in at 60 degree angle. Right-turn bypass lane part of conceptual design but removed for final. First modern roundabout in Oregon.
Bellevue, WA King United States	W. Lake Sammamish Pkwy. SE / Lakemont Blvd. SE (47.56776, -122.09980)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.4567	Other Single-Lane	1997	Revised August 2005. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Tallahassee, FL Leon United States	Sutor Road / Old Sutor Road (30.42957, -84.21212)	Neighborhood Traffic Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 16.4770	Other Single-Lane		ICD estimated from Google Maps linework.
Port St. Lucie, FL St. Lucie United States	SE Westmoreland Blvd. / Pine Valley St. (27.25530, -80.30157)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 72.1975	Other Single-Lane		ICD estimated from Google Maps linework.
Fort Pierce, FL St. Lucie United States	Avenue A / N Indian River Dr. (27.44907, -80.32326)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.6165	Other Single-Lane	1997	http://www.walkinginfo.org/pedsafe/casestudy.cfm?CS_NUM=14. Year Completed estimated (1994-1999). ICD estimated from Google Maps linework.
Malta, NY Saratoga United States	Rte 67 (Dunning St.) / I-87 SB Ramps (42.97027, -73.80322)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.5689	Other Multilane (2 Lane)	2006	Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Malta, NY Saratoga United States	Rte 67 (Dunning St.) / US 9 (42.97116, -73.79296)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.6943	Other Multilane (2 Lane)	2006	Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	NW 25th Ave. / NW Overton St. (45.53190, -122.70270)	Neighborhood Traffic Circle Existing	Two-Way Stop None	4 Approaches 0 Driveways 44.3420	Other Single-Lane	1988	Completed 9/30/1988. ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	NW 25th Ave. / NW Marshall St. (45.53040, -122.70270)	Neighborhood Traffic Circle Existing	Two-Way Stop None	4 Approaches 0 Driveways 62.7498	Other Single-Lane	1988	Completed 9/30/1988. ICD estimated from Google Maps linework.
Provo, UT Utah United States	Riverside Ave. / W 1720 North (40.25703, -111.66810)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.8749	Other Single-Lane	2000	ICD estimated from Google Maps linework.
Columbia, MD Howard United States	Cradlerock Way / Homespun Dr. (39.19095, -76.83787)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 22.2158	Other Single-Lane	2001	Completed May 21, 2001. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Malta, NY Saratoga United States	Rte 67 (Dunning St.) / Kelch Dr. / Blacksmith Dr. (Malta Commons) (42.97073, -73.79816)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.8207	Other Multilane (2 Lane)	2006	Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa United States	E. Via Linda / E. San Pablo Dr. (33.56833, -111.89350)	Neighborhood Traffic Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 49.7573	Other Single-Lane		ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa United States	E. Via Linda / N. 87th St. (33.56715, -111.89500)	Neighborhood Traffic Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 69.6612	Other Single-Lane		ICD estimated from Google Maps linework.
Loveland, CO Larimer United States	McWhinney Blvd. / Hahns Peak Dr. / Grays Peak Dr. (40.41048, -105.01140)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 68.2039	Other Multilane (2 Lane)	2002	Previously controlled by new Functional Class: Arterial ICD estimated from Google Maps linework.
Eugene, OR Lane United States	Barger Dr. / Green Hill Rd. (44.08470, -123.20830)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.6002	Other Single-Lane	1999	ICD estimated from Google Maps linework.
Lawrence, KS Douglas United States	Monterey Way / Harvard Rd. (38.96400, -95.28833)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 15.7869	Other Single-Lane	1999	Built as part of reconstrction of Monterey Way. Designed as part of City/State Safety Improvement Project. ICD estimated from Google Maps linework.
Lawrence, KS Douglas United States	West Campus Rd. / Jayhawk Blvd. / Crescent Rd. (38.95905, -95.25105)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.7185	Other Single-Lane	2013	Original circle built c. 1945, rebuilt 2013 as part of reconstruction of Jayhawk Boulevard. Encircles Chi Omega fountain. Functional Class: Collector ICD estimated from Google Maps linework.
Coventry, CT Tolland United States	Daly Rd. / South St. (41.76721, -72.33688)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.9424	Other Single-Lane	2004	ICD estimated from Google Maps linework.
Fairmont, WV Marion United States	WV 273 / Haymond St. (39.47601, -80.13599)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.9383	Other Multilane (2 Lane)	2010	Functional Class: Arterial ICD estimated from Google Maps linework.
Hartland, MI Livingston United States	Hartland Rd. / Rovey Dr. (42.63682, -83.74883)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.6594	Other 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 Single-Lane	2010	Functional Class: Collector ICD estimated from Google Maps linework.
Davis, CA Yolo United States	Anderson Rd. / Alvarado Ave. (38.56210, -121.75850)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.2149	Other 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 United States	E. Via Linda / E. San Rafael Dr. (33.56711, -111.89565)	Neighborhood Traffic Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 18.2880	Other Single-Lane		ICD estimated from Google Earth.
Arcata, CA Humboldt United States	12th St. / I St. (40.87160, -124.08700)	Neighborhood Traffic Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 48.7687	Other Single-Lane		ICD estimated from Google Maps linework.
Goshen, CT Litchfield United States	Rte. 4 / Rte. 63 (41.83181, -73.22543)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.3576	Other Single-Lane	2002	Painted rather than raised islands ICD estimated from Google Maps linework.
Rochester, MI Oakland 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 Single-Lane	1999	Total cost: $353,000. Completed July 1999. Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA Humboldt United States	13th St. / J St. (40.87260, -124.08780)	Neighborhood Traffic Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 11.7404	Other Single-Lane		ICD estimated from Google Maps linework.
Madison, CT New Haven United States	Rte. 80 / Rte. 79 (41.35976, -72.63807)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 98.6077	Other Single-Lane		Old traffic circle converted to yield on entry. ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV Clark United States	Village Center Dr. / Meadow Hills Dr. (36.19350, -115.30070)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.0121	Other Multilane (2 Lane)	1991	ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa United States	E. Via Linda / N. 84th St. (33.56832, -111.89880)	Neighborhood Traffic Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 37.8156	Other Single-Lane		ICD estimated from Google Maps linework.
New London, CT New London United States	Shaw St. / Howard St. / Willets Ave. (41.34284, -72.09972)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.9700	Other Single-Lane	2000	ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa United States	E. Via Linda / N. 83rd Pl. (33.56770, -111.90100)	Neighborhood Traffic Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 63.6899	Other Single-Lane		ICD estimated from Google Maps linework.
University Place, WA Pierce United States	Grandview Dr. / Olympic Blvd. (47.22188, -122.55790)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1454	Other Single-Lane	1997	Curtis High School and Curtis Junior High School on NE corner of roundabout. Opened August 1997. Functional Class: Arterial ICD estimated from Google Maps linework.
Kennewick, WA Benton United States	27th Ave. / Union St. / Southridge Blvd / W Creekstone Dr. (46.18497, -119.18040)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.5168	Other Single-Lane	2000	Completed August 25, 2000. Right-turn bypass on WB approach. Was 3-leg intersection; fourth leg added to west as part of project. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Seymour, CT New Haven Co. United States	Rte. 188 / Rte. 334 (Great Hill Rd.) / Holbrook Rd. (41.37857, -73.12669)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8469	Other Single-Lane	2016	Previous traffic circle was upgraded to modern roundabout design guidelines. 21442
Scottsdale, AZ Maricopa United States	N. Marshall Way / E. Main St. (33.49311, -111.92830)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 22.9083	Other Single-Lane		ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa United States	N. Marshall Way / E. 5th Ave. (33.49802, -111.92900)	Other Existing	All-Way Stop None	3 Approaches 0 Driveways 23.9030	Other Single-Lane		Stop controlled. ICD estimated from Google Maps linework.
Prescott, AZ Yavapai United States	SR 89 / Willow Lake Rd. (34.59233, -112.42580)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 59.9743	Other Multilane (2 Lane)	2006	ICD estimated from Google Maps linework.
Bisbee, AZ Cochise United States	Bisbee Rd. / SR 80 / SR 92 (31.42830, -109.89230)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 104.9686	Other Single-Lane		ICD estimated from Google Maps linework.
Kingston, NY Ulster United States	I-587 / Rte. 28 / I-87 / Washington Ave. (41.94362, -74.02840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.7424	Freeway Ramps Multilane (2 Lane)	2000	A 600 ft diameter traffic circle was replaced by 200 ft diameter roundabout. At Exit 19 from I-87. I-587 terminates in roundabout. ICD estimated from Google Maps linework.
Windsor, CT Hartford United States	Hayden Station Rd. / Lancaster Dr. / Center St. (41.89280, -72.63409)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.8935	Other Single-Lane	1998	Functional Class: Collector. Year Completed estimated (1994-2003). ICD estimated from Google Maps linework.
Manhattan, KS Riley United States	Gary Ave. / Candlewood Dr. (39.21087, -96.61885)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.2841	Other Single-Lane	1997	Considered to be the First Modern Roundabout in the State of Kansas. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Oviedo, FL Seminole United States	Franklin St. / Geneva Dr. / Division St. (28.67359, -81.20439)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 34.5795	Other Single-Lane	2006	Website: http://www.cityofoviedo.net/files/Roundabouts.pdf ICD estimated from Google Maps linework.
Windsor, CT Hartford United States	Hayden Station Rd. / Pond Rd. (41.89371, -72.64065)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 24.0041	Other Single-Lane	1998	Functional Class: Collector. Year Completed estimated (1992-2003). ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV Clark United States	Vista Run Dr. / Park Vista Dr. (36.17820, -115.34610)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.2741	Other Single-Lane	1995	Year completed estimated (1990-1999) ICD estimated from Google Maps linework.
Windsor, CT Hartford United States	Prospect Hill Rd. / Lang Rd. (41.89153, -72.69762)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 25.7830	Other Single-Lane	1998	Located at entrance to industrial park. Year Completed estimated (1992-2004). ICD estimated from Google Maps linework.
Seattle, WA King United States	61st Ave. S / S Norfolk St. (47.51337, -122.25705)	Neighborhood Traffic Circle Existing	Unknown Unknown	4 Approaches 0 Driveways	Other Single-Lane	2006
Truckee, CA Nevada United States	Brockway Rd. / Martis Valley Rd. (39.32135, -120.16269)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other Single-Lane	2006
Tampa (Ybor City), FL Hillsborough United States	Channelside Dr. / Cumberland Ave. (27.94497, -82.44576)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 54.8640	Other Multilane (2 Lane)	1995	Right-turn-only lane on north leg.
Clearwater, FL Pinellas United States	SR 60 / Coronado Dr. (SR 699) / Mandalay Ave. / Poinsettia Ave. (Gateway Roundabout) (27.97752, -82.82709)	Roundabout Existing	All-Way Yield Metering Signal	6 Approaches 0 Driveways 68.5587	Other Multilane (2 Lane)	1999	Modified 2002-2004 to change geometry and striping, and remove fountain. 21442
Bend, OR Deschutes United States	Brookswood Blvd. / Powers Rd. (44.02886, -121.32130)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.1961	Other Single-Lane	2013	ICD estimated from Google Maps linework.
Anchorage, AK Anchorage United States	C St. / O'Malley EB Ramps (61.12273, -149.88630)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.5659	Other Multilane (2 Lane)	2006	Functional Class: Arterial ICD estimated from Google Maps linework.
Anchorage, AK Anchorage United States	C St. / O'Malley WB Ramps (61.12404, -149.88630)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.2943	Other Multilane (2 Lane)	2006	Functional Class: Arterial ICD estimated from Google Maps linework.
Seattle, WA King United States	34th Ave. SW / SW Henderson St. (47.52286, -122.37530)	Neighborhood Traffic Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 42.7458	Other Unknown	2006	ICD estimated from Google Maps linework.
Litchfield Park, AZ Maricopa United States	W. Palmilla Blvd. / W. Alvarado Dr. (33.46978, -112.35190)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 23.9107	Other Single-Lane		ICD estimated from Google Maps linework.
Moses Lake, WA Grant United States	Yonezawa Blvd. / S. Division St. / W. Belmont Ave. (47.10438, -119.27860)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.0857	Other Single-Lane	2001	Pedestrian crossing has z-shape, with exit closer to roundabout than entrance. Part of series of 3 roundabouts. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Litchfield Park, AZ Maricopa United States	Wigwam Creek Blvd. / N. Rattler Way (33.51643, -112.32870)	Neighborhood Traffic Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 16.9277	Other Single-Lane	2004	ICD estimated from Google Maps linework.
Loveland, CO Larimer United States	Plum Creek Dr. / Piney River Dr. (40.41253, -105.01850)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.0994	Other Single-Lane	2001	Functional Class: Local ICD estimated from Google Maps linework.