Roundabouts Database Index

28782 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
Havana, Havana Plaza de la Revolución Cuba	Rotonda Calixto García (23.14498, -82.39590)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Havana, Havana Playa Cuba	Avenida 5ta / (unknown) (23.09301, -82.45429)	Other Existing	Unknown Unknown	3 Approaches 1 Driveways	Other (At-Grade) Multilane (3+ Lane)
Hollister, CA San Benito Co. United States	SR 25 / SR 156 (36.89565, -121.42733)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 78.0288	Other (At-Grade) Multilane (3+ Lane)	2023	Rotor turbo roundabout. Opened December 2023. https://www.sfgate.com/local/article/gilroy-california-turbo-roundabout-18585736.php
Ciudad Juárez, Chihuahua Juárez Mexico	Calle Miguel de la Madrid / Enrique Pinocelli (31.63261, -106.41585)	Unknown Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
New York City, NY New York Co. United States	W 110th St. / Central Park West / Frederick Douglass Blvd. / West St. (40.80058, -73.95821)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (3+ Lane)
Cedar Road Corridor, OH Cuyahoga Co. United States	Warrensville Center Rd. / Fairmount Blvd. / University Blvd. / John Carroll Blvd. / N Park Blvd. (41.48648, -81.53627)	Signalized Roundabout/Circle Existing	Signal Unknown	8 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (3+ Lane)		Hamburger shaped.
Bailleston, Scotland Glasgow City United Kingdom	A8 / Rhindhouse Rd. / (connector to M8 interchange) (55.85259, -4.09783)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Rome, Latium Rome Italy	Piazza Guido Piovene (41.81226, 12.46578)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Sarasota, FL Sarasota Co. United States	SR 789 / N Tamiami Trl. (27.33555, -82.54678)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (3+ Lane)	2022	https://www.yourobserver.com/news/2022/dec/22/with-gulfstream-roundabout-open-sarasota-adds-another-circle-to-bayfront-string/
Lille, Hauts-de-France Nord France	M750 / Boulevard de la Moselle / A25-E42 Ramps (50.62317, 3.02852)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Basingstoke, England Hants United Kingdom	A30 (Winchester Rd.) / A340 (Ringway West - Ringway South) (51.25513, -1.10357)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Basingstoke, England Hants United Kingdom	Black Dam Roundabout: A30 / A339 (51.26302, -1.06631)	Other Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Some direct movements through central island.
Basingstoke, England Hants United Kingdom	A339 / M3 Ramps (51.25793, -1.06507)	Signalized Roundabout/Circle Existing	Signal Unknown	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Kuching, Sarawak Bahagian Kuching Malaysia	Lorong Bunga Kenanga: Jala Tun Abdul Rahman / Jalan Bako / (unknown) (1.57992, 110.35132)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Concentric striped circulatory roadway.
Kuching, Sarawak Bahagian Kuching Malaysia	Bulatan D P Abang Haji Abdillah (1.57168, 110.35128)	Rotary Existing	All-Way Yield Unknown	6 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Kuching, Sarawak Bahagian Kuching Malaysia	Jalan Datuk Marican Salleh / Jalan Demak / (unknown) (1.56605, 110.35639)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 150.0000	Other (At-Grade) Multilane (3+ Lane)
Kuching, Sarawak Bahagian Kuching Malaysia	Bulatan Datuk Temenggong Abang Kipali Bin Abang Akip (1.56887, 110.32092)	Rotary Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 200.0000	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)		Oval shaped. ICD = 200 m x 180 m.
Kuching, Sarawak Bahagian Kuching Malaysia	Jalan Matang / Jalan Matang Baru / (unknown) (1.57234, 110.30408)	Rotary Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 145.0000	Other (At-Grade) Multilane (3+ Lane)
Kuching, Sarawak Bahagian Kuching Malaysia	Jalan Lapangan Terbang (1.50399, 110.34811)	Other Existing	All-Way Yield Unknown	5 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)		Vehicular access to central island.
Kuching, Sarawak Bahagian Kuching Malaysia	Jalan Sherip Masahor / Jalan Taman Hui Sing (1.51238, 110.34372)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 110.0000	Other (At-Grade) Multilane (3+ Lane)		Concentric striped circulatory roadway.
Kuching, Sarawak Bahagian Kuching Malaysia	Jalan Datuk Tawi Sli (1.52093, 110.33663)	Rotary Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 200.0000	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)		Oval shaped. ICD = 200 m x 160 m.
Kuching, Sarawak Bahagian Kuching Malaysia	Jalan Tun Razak / Jalan Wan Alwi / Jalan Ridgeway (1.53037, 110.35927)	Rotary Existing	All-Way Yield Unknown	6 Approaches 0 Driveways 230.0000	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Kuching, Sarawak Bahagian Kuching Malaysia	Jalan Wan Alwi / Jalan Setia Raja (1.52098, 110.38141)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 130.0000	Other (At-Grade) Multilane (3+ Lane)		Oval shaped. ICD = 130 m x 105 m.
Kuching, Sarawak Bahagian Kuching Malaysia	Jalan Stutong / Jalan Tabuan Laru (1.50515, 110.37383)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 110.0000	Other (At-Grade) Multilane (3+ Lane)
Kota Samarahan, Sarawak Bahagian Samarahan Malaysia	Jalan Datuk Muhammad Musa / Lebuhraya Kuching-Samarahan (1.45870, 110.41921)	Rotary Existing	All-Way Yield Unknown	4 Approaches 1 Driveways 210.0000	Other (At-Grade) Multilane (3+ Lane)
Kota Samarahan, Sarawak Bahagian Samarahan Malaysia	Lebuhraya Kuching-Samarahan / (unknown) (1.47543, 110.41598)	Rotary Existing	All-Way Yield Unknown	3 Approaches 2 Driveways 240.0000	Other (At-Grade) Multilane (3+ Lane)
Kota Samarahan, Sarawak Bahagian Samarahan Malaysia	Lebuhraya Kuching-Samarahan / (unknown) (1.48899, 110.40638)	Rotary Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 240.0000	Other (At-Grade) Multilane (3+ Lane)
Kuching, Sarawak Bahagian Kuching Malaysia	Rte 1002 / (unknown) (1.59920, 110.43140)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 110.0000	Other (At-Grade) Multilane (3+ Lane)
Kuching, Sarawak Bahagian Kuching Malaysia	Jalan Demak Maju / (unknown) (1.59923, 110.44736)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 130.0000	Other (At-Grade) Multilane (3+ Lane)
Kuching, Sarawak Bahagian Kuching Malaysia	Jalan Sultan Tengah / (unknown) (1.62387, 110.34799)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 245.0000	Other (At-Grade) Multilane (3+ Lane)
Whitehall Estate, George Town Cayman Islands	Esterley Tibbetts Hwy. / Minerva Dr. (19.31260, -81.37797)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 82.0000	Other (At-Grade) Multilane (3+ Lane)	2017
Whitehall Estate, George Town Cayman Islands	Esterly Tibbetts Hwy. / Lawrence Blvd. / Nexus Way (19.32019, -81.37929)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)	2017	Oval shaped.
Fort Worth, TX Tarrant Co. United States	TX 199 (N Henderson St.) / White Settlement Rd. (32.76005, -97.34442)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (3+ Lane)	2021	https://fortworthreport.org/2021/12/08/some-roundabouts-leave-fort-worthians-heads-spinning/
Tulcea, Tulcea Romania	DN22-E87 (Danube Delta) / Strada 9 Mai / Strada Grigore Antipa (45.17967, 28.80456)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Parking along circulatory roadway.
Cox Green, England Windsor And Maidenhead United Kingdom	Holyport Interchange: A404 (M) / A308 (M) / M4 Ramps (51.49903, -0.72393)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Fishery, England Windsor And Maidenhead United Kingdom	A308 (Braywick Rd.) / Stafferton Way / Rushington Ave. (51.51711, -0.72021)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Maidenhead, England Windsor And Maidenhead United Kingdom	A4 / A308 (51.52276, -0.72468)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Cippenham, England Slough United Kingdom	A4 (Bath Rd.) / M4 (Hunterscombe Spur) / Goldsworthy Way (51.52017, -0.65469)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Chalvey, England Slough United Kingdom	A355 (Tums Ln.) / Church St. / Cippenham Ln. (51.50871, -0.61241)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Hamburger shaped.
Chalvey, England Slough United Kingdom	Tuns Lane Interchange: A355 (Tuns Ln.) / M4 (Slough-Maidenhead By-Pass) Ramps (51.50311, -0.61641)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Brands Hill, England Slough United Kingdom	Langley Roundabout: A4 (London Rd.) / M4 (Slough-Maidenhead By-Pass) Ramps (51.49179, -0.54292)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
West Drayton, England Greater London United Kingdom	A408 (Stockley Rd.) / Prologis Park (51.50251, -0.45118)	Signalized Roundabout/Circle Existing	Signal Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Cranford, England Greater London United Kingdom	A408 / M4 (Heathrow Airport Spur Rd. / M4 (Chiswick to Langley Special Road) Ramps (51.49580, -0.45344)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Clewer Green, England Windsor And Maidenhead United Kingdom	A332 (Royal Windsor Way) / B3024 (Clarence Rd.) / B3173 (Imperial Rd.) (51.47994, -0.62424)	Signalized Roundabout/Circle Existing	Signal Unknown	5 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Swindon, England Wiltshire United Kingdom	"Magic Roundabout" [A4312 / Drove Rd. / Fleming Way / A4289 (County Rd.) / Shrivenham Rd.] (51.56285, -1.77147)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 66.0791	Other (At-Grade) Ring junction (3+ mini-roundabouts in ring)	1972	Ring junction of five mini-roundabouts. ICD estimated from Google Maps linework.
Hemel Hempstead, England Herts United Kingdom	Plough Roundabout (A414 / Lawn Ln. / Two Waters Rd. / Station Rd. / Leighton Buzzard Rd. / Selden Hill) (51.74628, -0.47329)	Roundabout Existing	All-Way Yield Unknown	6 Approaches 0 Driveways 89.4750	Other (At-Grade) Ring junction (3+ mini-roundabouts in ring)		Ring junction of six mini-roundabouts. ICD estimated from Google Maps linework.
London Heathrow Airport, England London United Kingdom	Hatton Cross Roundabout [Envoy Ave. / Eastchurch Rd. / Viscount Way / Southern Perimeter Rd. / Hatton Rd.] (51.46785, -0.42332)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways	Other (At-Grade) Ring junction (3+ mini-roundabouts in ring)		Ring junction of five multilane mini-roundabouts.
Colchester, England Essex United Kingdom	A133 (Saint Andrews Ave.-Clingoe Hill) / A134 (Colchester Causeway) / Greenstead Rd. / Avon Way (51.88446, 0.93270)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways	Other (At-Grade) Ring junction (3+ mini-roundabouts in ring)		Ring junction of five multilane mini-roundabouts.
Las Vegas, NV Clark Co. United States	Lake South / Crystal Water Way (36.13289, -115.29050)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 25.0796	Other (At-Grade) Single-Lane	1994	Completed August 1994. Functional Class: Collector ICD estimated from Google Maps linework.
(unincorporated), FL Palm Beach Co. United States	Lakes at Boca Raton / Cain Blvd. (26.39603, -80.21160)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.3962	Other (At-Grade) Single-Lane	1994	Completed November 1994. ICD estimated from Google Maps linework.
Lisbon, MD Howard Co. United States	MD 94 / MD 144 (39.33700, -77.07360)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	1993	First roundabout in Maryland. Built initially as temporary, made permanent after one month.
Gainesville, FL Alachua Co. United States	SE 7th St. / SE 4th Ave. (29.64824, -82.31792)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 18.2880	Other (At-Grade) Single-Lane	1992	Pedestrian crossings within circulatory roadway. Completed April 1992.
Fort Walton Beach, FL Okaloosa Co. United States	Hollywood Blvd. / Doolittle Blvd. (30.41364, -86.66468)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.8704	Other (At-Grade) Single-Lane	1994
Tallahassee, FL Leon Co. United States	Killarney Way / Shamrock Dr. (30.51361, -84.22315)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.7810	Other (At-Grade) Single-Lane	1994	Completed August 1994. ICD estimated from Google Maps linework.
Bradenton Beach, FL Manatee Co. United States	SR 789 / Bridge St. (27.46500, -82.69847)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 14.8361	Other (At-Grade) Single-Lane	1994	Completed August 1994. ICD estimated from Google Maps linework.
Short Pump, VA Goochland Co. United States	Capitol One Dr. / (unknown) (37.62693, -77.66927)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 37.8365	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Santa Barbara, CA Santa Barbara Co. United States	Alameda Padre Serra / Montecito St. / Salinas St. / Sycamore Canyon Rd. (34.42903, -119.67720)	Roundabout Existing	All-Way Yield None	5 Approaches 1 Driveways 23.6427	Other (At-Grade) Single-Lane	1992	Includes driveway into roundabout serving one home. ICD estimated from Google Maps linework.
Boca Raton, FL Palm Beach Co. United States	SW 18th St. / Juana Rd. (SW 12th Ave.) (26.33206, -80.11059)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane		Raised splitter islands on SW 18th St., painted splitter islands on Juana Rd.. Flashing warning beacon on eastbound SW 18th St. approach. Year Completed unknown (before 1985).
Lothian, MD Anne Arundel Co. United States	MD 2 / MD 408 / MD 422 (38.82973, -76.61590)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.8423	Other (At-Grade) Single-Lane	1995	Completed October 1995. ICD estimated from Google Maps linework.
Elkton, MD Cecil Co. United States	MD 213 (Fair Hill Rd.) / Leeds Rd. / Elk Mill Rd. (Lanzi Circle) (39.66364, -75.85529)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.0178	Other (At-Grade) Single-Lane	1995	Previously controlled by two-way stop. Functional Class: Arterial ICD estimated from Google Maps linework.
Cearfoss, MD Washington Co. United States	MD 63 / MD 58 / MD 494 (Cearfoss Pike) (39.70017, -77.77593)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	1995	Completed December 1995.
Naples, FL Collier Co. United States	8th St. S / 12th Ave. S (26.13267, -81.79491)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.2281	Other (At-Grade) Single-Lane	1996	Installed for community enhancement. ICD estimated from Google Maps linework.
Naples, FL Collier Co. United States	7th St. N. / 3rd Ave. N. (26.15530, -81.80524)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 9.6483	Other (At-Grade) Single-Lane	1998	Installed for traffic calming. Detailed traffic volume, speed data available. ICD estimated from Google Maps linework.
Tavares, FL Lake Co. United States	Main St. / Disston Ave. / Lake Dora Dr. (28.80215, -81.72475)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 20.9315	Other (At-Grade) Single-Lane	1996	Railroad tracks running along edge of central island. RR unprotected, train frequency 1-2/wk, 10 mph. ICD estimated from Google Maps linework.
Clovis, NM Curry Co. United States	Hwy 245 (Llano Estacado Blvd.) / Norris St. (34.43384, -103.17830)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.3276	Other (At-Grade) Single-Lane	2006	Completed February 27, 2006. Website: http://www.cityofclovis.org/roundabout/roundabout.htm ICD estimated from Google Maps linework.
Taneytown, MD Carroll Co. United States	MD 140 / MD 832 / Antrim Blvd. (39.64809, -77.15468)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1960	Other (At-Grade) Single-Lane	1996	Completed August 1996. Curbs set for double lane, striped for single outer circulating lane.
Hilton Head, SC Beaufort Co. United States	Whooping Crane Way / Main St. (32.21647, -80.72187)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.4598	Other (At-Grade) Single-Lane	1996	Completed February 1996. ICD estimated from Google Maps linework.
Montpelier, VT Washington Co. United States	Keck Circle (Main St. / Spring St.) (44.26283, -72.57178)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.6594	Other (At-Grade) Single-Lane	1995	Main Street Middle School located one block NE of roundabout. ICD estimated from Google Maps linework.
Naples, FL Collier Co. United States	7th St. N. / 7th Ave. N. (26.15619, -81.79971)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 22.5125	Other (At-Grade) Single-Lane	1998	Installed for traffic calming. Detailed traffic volume, speed data available. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Naples, FL Collier Co. United States	7th St. N. / 11th Ave. N. (26.15712, -81.79420)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 13.7160	Other (At-Grade) Single-Lane	1996	Installed for traffic calming. Painted splitter islands. Detailed traffic volume, speed data available. ICD estimated from Google Earth.
Naples, FL Collier Co. United States	7th St. N. / 12th Ave. N. (26.15734, -81.79282)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 13.7160	Other (At-Grade) Single-Lane	1996	Installed for traffic calming. Detailed traffic volume, speed data available. ICD estimated from Google Earth.
Modesto, CA Stanislaus Co. United States	Chandon Dr. / Calero Dr. (37.67642, -120.93380)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4132	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Modesto, CA Stanislaus Co. United States	Bowen Ave. / Fremont Ave. (37.67470, -121.00260)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.9061	Other (At-Grade) Single-Lane	2002	Previously controlled by twsc ICD estimated from Google Maps linework.
Stuart, FL Martin Co. United States	N. Colorado Ave. / E. Osceola St. (27.19860, -80.25300)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 32.9303	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Nederland, CO Boulder Co. United States	SH 72 / SH 119 / 2nd St. / Bridge St. (39.96261, -105.51030)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 23.8006	Other (At-Grade) Single-Lane	1995	Opened June 1995. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Tampa, FL Hillsborough Co. United States	North Blvd. / Country Club Dr. (28.05466, -82.46759)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 14.7559	Other (At-Grade) Single-Lane	1996	Completed June 1996. ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	N. 64th St. / E. Lafayette Blvd. (33.49474, -111.94330)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.9119	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Olmos Park, TX Bexar Co. United States	Olmos Dr. / El Prado Dr. / McCullough Ave. (29.47094, -98.49162)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 32.0037	Other (At-Grade) Single-Lane	1996	Completed July 1996.
Manchester, VT Bennington Co. United States	Rte. 7A / Equinox (Grand Union) (43.17309, -73.06181)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.1304	Other (At-Grade) Single-Lane	1997	Roundabout is in a retail/outlet district in a resort area. VT 7-A is posted as a Historic Highway and is the local business route, while the parallel US 7 is a two-lane, limited access bypass that carries through truck traffic. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Acworth-Kennesaw, GA Cobb Co. United States	W Sandtown Rd. / Villa Rica Rd. (33.92703, -84.63775)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2008
Durango, CO La Plata Co. United States	Jenkins Ranch Rd. / Lizard Head (south) (37.28605, -107.84710)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 24.7061	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Durango, CO La Plata Co. United States	Jenkins Ranch Rd. / Lizard Head (north) (37.28920, -107.84310)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 27.5556	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	S. Pointe Pkwy. W / S. Pointe Pkwy. E (33.37649, -111.97210)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.8650	Other (At-Grade) Single-Lane	1994	Before 1997. ICD estimated from Google Maps linework.
Douglasville, GA Douglas Co. United States	SR 5 / SR 166 (33.61361, -84.83688)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.8602	Other (At-Grade) Single-Lane	2007	Fatal crash November 24, 2011. 11861-05. ICD estimated from Google Maps linework.
(unincorporated), MD Anne Arundel Co. United States	Arundel Beach Rd. / Leelyn Dr. (39.07955, -76.54560)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9594	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Brunswick, MD Frederick Co. United States	MD 17 / A St. / B St. / Maryland Ave. (39.31433, -77.62807)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 42.5054	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Catonsville, MD Baltimore Co. United States	MD 372 / Hilltop Rd. / Entrance to UMBC (39.25733, -76.71964)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.1417	Other (At-Grade) Single-Lane	1998	Functional Class: Collector ICD estimated from Google Maps linework.
Lisbon, MD Howard Co. United States	MD 94 / Old Frederick Rd. (Lisbon North) (39.34810, -77.06930)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.7839	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Ellicott City, MD Howard Co. United States	MD 103 / MD 100 WB Ramps (39.20846, -76.78294)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.3154	Freeway Ramps (Grade-Separated) Single-Lane	1998	Opened November 1998. ICD estimated from Google Maps linework.
Ellicott City, MD Howard Co. United States	MD 103 / MD 100 EB Ramps (39.20733, -76.78243)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.5396	Freeway Ramps (Grade-Separated) Single-Lane	1998	Opened November 1998. ICD estimated from Google Maps linework.
Ellicott City, MD Howard Co. United States	Snowden River Pkwy. / MD 100 WB Ramps (39.21233, -76.79544)	Roundabout Existing	All-Way Yield Metering Signal	3 Approaches 0 Driveways 25.9105	Freeway Ramps (Grade-Separated) Single-Lane	1998	Opened November 1998. Metering signal on Snowden River Pkwy approach. ICD estimated from Google Maps linework.
Federalsburg, MD Caroline Co. United States	MD 307 / MD 313 / MD 318 (38.68938, -75.78949)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.4247	Other (At-Grade) Single-Lane	1999	Rural, installed for safety reasons Previously controlled by two-way stop ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE Ladd Circle (45.50850, -122.64940)	Other Existing	Unknown None	0 Approaches 0 Driveways 92.0689	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Cedar Lake Township, MN Scott Co. United States	SH 13 (Langford Ave.) / CR 2 (260th St.) (44.57259, -93.50546)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.9429	Other (At-Grade) Single-Lane	2005	Rural location, intersection of two 55-mph facilities. Previous 2-way stop had 2 fatal crashes and 50 injury crashes in 5 years. Opened to traffic in September 2005. During 12 months after opening, 1 reported crash involving single motorcycle running off road. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Copley Township, OH Summit Co. United States	Ridgewood Rd. / Hametown Rd. (41.11395, -81.66791)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1947	Other (At-Grade) Single-Lane	2006	Opened August 21, 2006. ICD estimated from Google Maps linework.
Decatur, GA DeKalb Co. United States	N Decatur Rd. / Lullwater Rd. (33.78744, -84.32914)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2004
Durango, CO La Plata Co. United States	Jenkins Ranch Rd. / Ophir Dr. (37.28321, -107.85120)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 26.6075	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Huntsville, AL Madison Co. United States	Old Monrovia Rd. / Providence Main St. / Indian Creek Rd. (34.75765, -86.68776)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.3429	Other (At-Grade) Single-Lane	2004	Single-lane with right-turn only lanes. Built as staged construction with potential to be multilane. ICD estimated from Google Maps linework.
Camp Verde, AZ Yavapai Co. United States	Middle Verde / Cliff Castle (34.60927, -111.86130)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.3535	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
De Pere, WI Brown Co. United States	Grant St. (CTH EE) / Lawrence Dr. (44.44511, -88.09367)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.8430	Other (At-Grade) Single-Lane	2008	Opened September 30, 2008. ICD estimated from Google Maps linework.