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
São Domingos de Benfica, Lisbon Lisboa Portugal	Rua Tomás da Fonseca / Rua António Albino Machado (38.75584, -9.16971)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Lewes, DE Sussex Co. United States	Red Tail Rd. / Peregrine Rd. / Kestrel Ct. (38.75699, -75.13283)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands on north, east, or south legs.
Falagueira-Venda Nova, Lisbon Amadora Portugal	Praça São Silvestre [Estrada dos Salgados / Rua Manuel Ribeiro de Pavia] (38.75755, -9.21864)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Lewes, DE Sussex Co. United States	Kalmar St. / Pilotboat Dr. / Overfalls Dr. N (38.75793, -75.13541)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island. No splitter islands on northeast, northwest, or southwest legs.
São Marcos, Lisbon Sintra Portugal	Estrada de Paço de Arcos / Rua Marciano Tomaz da Costa / Rua do Alto do Cotão (38.75850, -9.30697)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Milton, DE Sussex Co. United States	Windstone Blvd. / Millstone Dr. (38.75985, -75.23334)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Queluz, Lisbon Sintra Portugal	N117 (Estrada das Águas Livres - Avenida José Elias Garcia) / Rua Elias Garcia (38.76047, -9.24986)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Carnide, Lisbon Lisboa Portugal	Avenida Mário Soares / Estrada da Correia / Estrada Militar (38.76088, -9.19743)	Signalized Roundabout/Circle Existing	Signal None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Roseville, CA Placer Co. United States	Park Regency Dr. / Hiawatha Dr. / Sharifa Way / Bottlebrush Cir. (38.76105, -121.34870)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.2518	Other (At-Grade) Single-Lane	2001	Crosswalks adjacent to circle. ICD estimated from Google Maps linework.
O'Fallon, MO St. Charles Co. United States	Springhurst Pkwy. / Spring Borough Dr. (38.76123, -90.77537)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 39.6240	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2007).
Roseville, CA Placer Co. United States	Westhills Dr. / Morningstar Dr. / St. Basil Cir. (38.76151, -121.35340)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.5951	Other (At-Grade) Single-Lane	2001	Crosswalks adjacent to circle. ICD estimated from Google Maps linework.
Parque das Nações, Lisbon Lisboa Portugal	Alameda dos Oceanos / Avenida de Ulisses (38.76160, -9.09625)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Parque das Nações, Lisbon Lisboa Portugal	Praça Princípe Perfeito [Avenida de Ulisses / Avenida Dom João II] (38.76170, -9.09832)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Mina de Água, Lisbon Amadora Portugal	Praça José Niza [Avenida General Humberto Delgado / Avenida Pedro Álvares Cabral] (38.76263, -9.23983)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Bristow, VA Prince William Co. United States	Tappen Mill Way / Hayes Station Way / Sorrel River Way (38.76305, -77.55212)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2008).
Gainesville, VA Prince William Co. United States	Catbird Dr. / Yellow Hammer Dr. (38.76306, -77.61385)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.5944	Other (At-Grade) Single-Lane	2006	Functional Class: Local ICD estimated from Google Maps linework.
Lewes, DE Sussex Co. United States	New Rd. / Lynn Rd. (38.76363, -75.17073)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://www.capegazette.com/article/roundabouts-abound/228013
Falagueira-Venda Nova, Lisbon Amadora Portugal	Avenida Jorge Sampaio / Avenida Ruy Luís Gomes (38.76414, -9.21255)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Junction West, CA Placer Co. United States	Camino Real Way / Camino Real Way (38.76573, -121.35364)	Other Existing	All-Way Stop Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Roseville, CA Placer Co. United States	Reserve Dr. / Diamond Oaks Rd. (38.76679, -121.27120)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.7990	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Roseville, CA Placer Co. United States	Reserve Dr. / Fountains Driveway (38.76793, -121.27090)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.1106	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Olivais, Lisbon Lisboa Portugal	Praça Baden Powell [venida de Berlim / Avenida Cidade de Luanda / Rua Contra-Almirante Armando Ferraz] (38.76821, -9.10999)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
O'Fallon, MO St. Charles Co. United States	Connecting Rd. / Alta Mira Ct. / MO 364 WB Ramps (38.76954, -90.74393)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2014
St Charles, MO St. Charles Co. United States	Veterans Memorial Pkwy. / Fairgrounds Rd. (38.76989, -90.50100)	Roundabout Unknown	All-Way Yield None	4 Approaches 0 Driveways 42.6717	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2017	Merging right-turn bypass lane on north leg.
Olivais, Lisbon Lisboa Portugal	Avenida de Berlim / Alameda das Comunidades Portuguesas / Rua C-Aeroporto da Portela (38.76997, -9.12595)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Gainesville, VA Prince William Co. United States	Glenkirk Rd. (Rte 675) / Bearhurst Dr. / Sedge Wren Dr. (38.77018, -77.61681)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.6599	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Bradley Rd. / SR 83 (S Academy Blvd.) NB Ramps / Cody Dr. (38.77019, -104.75705)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2007	Year Completed estimated (2006-2007).
Warrensburg, MO Johnson Co. United States	SR 13 / US 50 EB Ramps (38.77151, -93.68568)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.9709	Freeway Ramps (Grade-Separated) Single-Lane	2011	ICD estimated from Google Maps linework.
Westpark, CA Placer Co. United States	Wharton Ln. (38.77188, -121.37325)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Roseville, CA Placer Co. United States	Galleria Cir. / Antelope Creek Dr. (38.77210, -121.26705)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Year Completed estimated (2007-2008).
Westpark, CA Placer Co. United States	Mayhill Dr. / Parkham Dr. (38.77222, -121.36546)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands.
Mira-Sintra, Lisbon Sintra Portugal	N250 (Avenida Fernão Mendes Pinto - / Avenida dos Bons Amigos) / Avenida Infante Dom Henrique / Rua Joaquim Guilherme da Costa Caldas (38.77223, -9.29235)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Lisbon, Lisbon Lisboa Portugal	Rotunda dos Corvos [Eixo Central / Avenida Álvaro Cunhal] (38.77269, -9.14915)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Manassas, VA Manassas City United States	Sumner Lake Blvd. / Warfield St. / Stoddard Dr. (38.77334, -77.48041)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Building in central island.
Ashland, MO Boone Co. United States	E Rte Y (Broadway) / Industrial Dr. (38.77420, -92.24893)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://hi-in.facebook.com/SaraForMissouri/photos/a.1410590502324879/3879420848775153
Ashland, MO Boone Co. United States	MO-M (E Broadway) / MO-Y / US 63 NB Ramps (38.77429, -92.25118)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2014	Year Completed estimated (2013-2015).
Ashland, MO Boone Co. United States	MO-M (E Broadway) / US 63 SB Ramps (38.77431, -92.25328)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2014	Year Completed estimated (2013-2015).
Warrensburg, MO Johnson Co. United States	SR 13 / US 50 WB Ramps (38.77480, -93.68554)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.9690	Freeway Ramps (Grade-Separated) Single-Lane	2011	ICD estimated from Google Maps linework.
Parque das Nações, Lisbon Lisboa Portugal	Rotunda dos Vice-Reis [Alameda dos Oceanos / Avenida da Boa Esperança] (38.77494, -9.09518)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Westpark, CA Placer Co. United States	Mayhill Dr. / Ardley Dr. (38.77507, -121.36969)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands.
Rio de Mouro, Lisbon Sintra Portugal	N249 (Rua António Cardoso - Rua Elias Garcia) / Rua do Pino Verde / Rua António Cardoso (38.77607, -9.33240)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
St Charles, MO St. Charles Co. United States	Boones Lick Rd. / N Outer Rd. / St Charles Ave. (38.77702, -90.50897)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2007
Colorado Springs, CO El Paso Co. United States	Peak Innovation Pkwy. / Integration Loop (38.77922, -104.71029)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2021	Yield-controlled right-turn bypass lanes on north and south legs. Add-lane right-turn bypass lanes on east and west legs. Year Completed estimated (2020-2021).
Fort Washington, MD Prince George's Co. United States	Oxon Hill Rd. / Kerby Hill Rd. (38.77951, -77.00648)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.4490	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Santa Clara, Lisbon Lisboa Portugal	Avenida Nuno Krus Abecassis / Avenida Sérgio Vieira de Melo / Estrada de São Bartolomeu / Rua João Amaral (38.78008, -9.15233)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Moscavide, Lisbon Loures Portugal	Avenida de Moscavide / Avenida da Peregrinação / Rua Adão Manuel Ramos Barata (38.78036, -9.10176)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Moscavide, Lisbon Loures Portugal	Rua Cidade de Goa / Rua Francisco Marques Beato / Avenida de Moscavide / Rua do Seminário (38.78049, -9.10454)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Gainesville, VA Prince William Co. United States	Turtle Point Dr. / Spyglass Hill Loop (38.78095, -77.65189)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.6552	Other (At-Grade) Single-Lane	2001	Functional Class: Local ICD estimated from Google Maps linework.
Parque das Nações, Lisbon Lisboa Portugal	Rotunda das Oliveiras [Alameda dos Oceanos / Avenida da Peregrinação] (38.78166, -9.09707)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Deerfield Hills, CO El Paso Co. United States	Drennan Rd. / Post Oak Dr. (38.78168, -104.74115)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands; only diverging yellow lines.
Deerfield Hills, CO El Paso Co. United States	Drennan Rd. / Monica Dr. W (38.78171, -104.74739)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands; only diverging yellow lines.
Deerfield Hills, CO El Paso Co. United States	Drennan Rd. / Springnite Dr. (38.78171, -104.75088)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands; only diverging yellow lines.
Warrensburg, MO Johnson Co. United States	Hawthorne Blvd. / Cooper Blvd. (38.78203, -93.73226)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.9306	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Oxon Hill, MD Prince Georges Co. United States	National Harbor Blvd. / American Way (38.78227, -77.01099)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.7236	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	ICD estimated from Google Maps linework.
Rose Hill, VA Fairfax Co. United States	Park Terrace / Edgewood Dr. (38.78241, -77.12587)	Other Existing	Unknown Unknown	4 Approaches 4 Driveways 0.0000	Other (At-Grade) Single-Lane
Mount Vernon, VA Fairfax Co. United States	Fort Willard Circle (38.78275, -77.06601)	Other Existing	Unknown Unknown	6 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Odivelas, Lisbon Odivelas Portugal	Avennida Doutor Augusto Pais Martins / Avenida Miguel Torga (38.78325, -9.19423)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Warrensburg, MO Johnson Co. United States	MO-13 Business / Hawthorne Blvd. (38.78409, -93.73864)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.8257	Other (At-Grade) Single-Lane	2019	http://www.dailystarjournal.com/news/local/warrensburg-roundabout-construction-completed/article_c2a33804-ca57-11e9-a264-2fd41be698da.html. Completed August 2019. ICD estimated from Google Maps linework.
Odivelas, Lisbon Odivelas Portugal	Avenida Miguel Torga / Avenida Severiano Pedro Falcão / Rua Famões (38.78435, -9.19175)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Oxon Hill, MD Prince George's Co. United States	Oxen Hill Rd. / Cedar Ridge Dr. / Panorama Dr. (38.78452, -77.00597)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.4465	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Madison, IN Jefferson Co. United States	US 421 / SR 62 (E Clifty Dr.) (38.78539, -85.37201)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.6869	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	https://www.facebook.com/INDOTSoutheast/posts/madison-indthe-indiana-department-of-transportation-is-building-crossovers-for-t/875938365828212/ ICD estimated from Google Maps linework.
Parque das Nações, Lisbon Lisboa Portugal	Avenida Dom João II / Alameda dos Oceanos / Via do Oriente / IC2 (Avenida Infante Dom Henrique) Ramps (38.78581, -9.09981)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Loomis, CA Placer Co. United States	Montserrat Ln. / Blackhawk Ct. (38.78614, -121.18684)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2007
Mina de Água, Lisbon Amadora Portugal	Rua Fernando Maia / Rua dos Campos / Rua António Freitas (38.78813, -9.23418)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Roseville, CA Placer Co. United States	Roseville Pkwy. / (parking) (38.78819, -121.31549)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	Year Completed estimated (1998-2002). Built initial as single-lane roundabout. Converted to double lane east and west 2017-2018.
Rocklin, CA Placer Co. United States	Rocklin Rd. / Meyers St. (38.78852, -121.22915)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1684	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	ICD estimated from Google Maps linework.
Raymore, MO Cass Co. United States	S Madison St. / (park access) (38.78857, -94.45769)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2009-2010).
Rocklin, CA Placer Co. United States	Rocklin Rd. / S Grove St. (38.78884, -121.23168)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	Elliptical shaped. ICD = 150 ft x 125 ft.
Roseville, CA Placer Co. United States	Roseville Pkwy. / (unknown) (38.78900, -121.32076)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2016-2018).
Roseville, CA Placer Co. United States	Campus Pkwy. / Crimson Ridge Way (38.78933, -121.32544)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2017-2018).
Loomis, CA Placer Co. United States	Rutherford Canyon Rd. / Montserrat Ln. (38.78979, -121.18570)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.4440	Other (At-Grade) Single-Lane	2007	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.
Loomis, CA Placer Co. United States	Campus Dr. / Sierra College Blvd. connector (38.79049, -121.20638)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.9964	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Rocklin, CA Placer Co. United States	Rocklin Rd. / Pacific St. (38.79073, -121.23610)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2023	Yield-controlled right-turn bypass lanes on west and south legs; add-lane right-turn bypass lane on east leg. https://www.rocklin.ca.us/roundabout
Odivelas, Lisbon Odivelas Portugal	N8 (Rua Major Caldas Xavier) / Rua Guilherme Gomes Fernandes / Avenida Professor Augusto Abreu Lopes (38.79088, -9.17663)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Colorado Springs, CO El Paso Co. United States	E. Cheyenne Mountain Blvd. / Springmeadow Dr. (38.79132, -104.82750)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 81.9191	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Lake Ave. / 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.
Oxon Hill, MD Prince George's Co. United States	Oxon Hill Rd. / (parking lots) (38.79166, -77.00416)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.0650	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Roseville, CA Placer Co. United States	Albertsons Dr. / (parking) (38.79187, -121.31505)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2001	Merging right-turn bypass lane on east leg. Year Completed estimated (1998-2002).
Roseville, CA Placer Co. United States	Roseville Pkwy. / Painted Desert Way (38.79230, -121.32493)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2017	Yield-controlled right-turn bypass lane on north leg. East leg stubbed. 21442.
Hidden Valley Lake, CA Lake Co. United States	SR 29 / Hartmann Rd. (38.79274, -122.56556)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.6823	Other (At-Grade) Single-Lane	2019	ICD estimated from Google Maps linework.
Roseville, CA Placer Co. United States	Freedom Way / Thrive Dr. (38.79276, -121.29625)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2015-2016). North leg added 2017-2018.
Wentzville, MO St. Charles Co. United States	Wilmer Valley Dr. / Wilmer Ridge Dr. (38.79278, -90.86444)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2675	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Roseville, CA Placer Co. United States	Freedom Way / (unknown) (38.79281, -121.29852)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2016	Yield-controlled right-turn bypass lane on west leg. Year Completed estimated (2015-2016).
Edwardsville, IL Madison Co. United States	N University Dr. / Hairpin Dr. (38.79313, -89.99441)	Other Existing	Unknown Unknown	3 Approaches 5 Driveways 0.0000	Other (At-Grade) Unknown
Deale, MD Anne Arundel Co. United States	MD 256 / MD 258 (38.79327, -76.54586)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 34.4423	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Mesa Ave. / Park Ave. / Lake Cir. (38.79330, -104.85226)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.7188	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Lake Ave. / Berthie Cir. (38.79348, -104.83950)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 16.7557	Other (At-Grade) Single-Lane	1995	Year Completed unknown (before 1999). ICD estimated from Google Maps linework.
Sacavém, Lisbon Loures Portugal	N10 (Rua do Estado da Índia) / Avenida de São José / Rua Álvaro Pedro Gomes (38.79402, -9.10410)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Gilmore, MO St. Charles Co. United States	Village Glen Dr. / Glengarry Dr. (38.79407, -90.84755)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Loomis, CA Placer Co. United States	Rutherford Canyon Rd. / Shady Canyon Ct. (38.79408, -121.17740)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2007
Colorado Springs, CO El Paso Co. United States	Lake Ave. / Old Broadmoor Rd. (38.79479, -104.83360)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.3405	Other (At-Grade) Single-Lane	1995	Year Completed unknown (before 1999). ICD estimated from Google Maps linework.
Gilmore, MO St. Charles Co. United States	Glengarry Ct. / Kellerton Pl. (38.79542, -90.84653)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Edwardsville, IL Madison Co. United States	(access road) / (parking) (38.79590, -89.99837)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2018-2019).
St Peters, MO St. Charles Co. United States	Jungermann Cir. / Wellness Dr. (38.79591, -90.57980)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2015).
Wentzville, MO St. Charles Co. United States	Prospect Rd. / I-64 EB Exit Ramp (38.79596, -90.82043)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6717	Freeway Ramps (Grade-Separated) Single-Lane	2008	Interchange replaced single at-grade intersection. Year Completed estimated (2008-2009).
Wentzville, MO St. Charles Co. United States	Prospect Rd. / Corporate Pkwy. / I-64 WB Exit Ramp (38.79597, -90.81810)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Freeway Ramps (Grade-Separated) Single-Lane	2008	Interchange replaced single at-grade intersection. Year Completed estimated (2008-2009).
St Peters, MO St. Charles Co. United States	Executive Centre Pkwy. / Jungermann Cir. (38.79655, -90.58169)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 48.7680	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2015	Two circulating lanes throughout even though side street has only one entering lane. Year Completed estimated (2014-2015).
St Charles, MO St. Charles Co. United States	Tecumseh St. / N 3rd St. (38.79739, -90.47611)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.0037	Other (At-Grade) Single-Lane	2010	Merging right-turn bypass lane on east leg.
Roseville, CA Placer Co. United States	Parkside Way / Diamond Creek Blvd. (38.79791, -121.33400)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.8552	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.