Roundabouts Database Index

29411 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
Sellersburg, IN Clark Co. United States	American Way / Camp Run Pkwy. (38.39235, -85.76984)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	Northwest and northeast legs stubbed. https://www.wdrb.com/news/sellersburg-officials-hope-new-roundabout-will-attract-more-businesses/article_8ee3e832-2af4-11ed-94a6-3397bf032ef2.html
Salisbury, MD Wicomico Co. United States	Marquis Ave. / Victoria Park Dr. (38.39301, -75.61582)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Karabaglar, İzmir Turkey	Inonu Caddesi / 52/18 Sokak (38.39312, 27.08751)	Signalized Roundabout/Circle Existing	Signal Unknown	3 Approaches 0 Driveways	Other (At-Grade) Unknown
Narlıdere, İzmir Turkey	D-300 / Fevzi Yılmaz Sokak (38.39366, 27.01845)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Unknown Unknown		Circulating traffic yields to entering traffic.
Balçova, İzmir Turkey	(D-300 Frontage Road) / Ata Caddesi (38.39515, 27.05791)	Signalized Roundabout/Circle Existing	Signal Unknown	3 Approaches 0 Driveways	Other (At-Grade) Unknown
Narlıdere, İzmir Turkey	Mithatpaşa Caddesi / E881 Ramps (38.39542, 27.00104)	Unknown Existing	Unknown Unknown	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Narlıdere, İzmir Turkey	Mithatpaşa Caddesi / Ahmet Taner Kişali Caddesi (38.39613, 26.99712)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Buca, İzmir Turkey	Gazi Osman Paşa Caddesi / Yavuz Sultan Selim Caddesi (38.39685, 27.17485)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
(unincorporated), CA Sacramento Co. United States	Bonito Circle (38.39719, -121.40355)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Pedestrian access to central island.
Konak, İzmir Turkey	Mithatpaşa Caddesi / Inonu Caddesi / Mehmetcik Bulvari (38.39728, 27.07013)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Puebla de Sancho Pérez, Estremadura Badajoz Spain	N-432 / N-630 Ramps (38.39818, -6.34767)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Elk Grove, CA Sacramento Co. United States	Nassa Circle (38.40333, -121.41259)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Pedestrian access to central island.
Konak, İzmir Turkey	İnönü Caddesi / Halide Edip Adivar Caddesi (38.40625, 27.12237)	Unknown Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Unknown
Imperial, MO Jefferson Co. United States	Amberleigh Pkwy. / Amber Meadows Dr. / Amber View Dr. (38.40708, -90.44771)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Pedestrian access to central island.
Higashimatsushima City, Miyagi Pref. Japan	(unknown) (38.40823, 141.24143)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Elk Grove, CA Sacramento Co. United States	Elk Grove Blvd. / Black Swan Dr. / Baypoint Way (38.40909, -121.34886)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.5370	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Elk Grove, CA Sacramento Co. United States	Elk Grove Blvd. / Mainline Dr. / Clarke Farms Dr. (38.40911, -121.33893)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.5370	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Huntington, WV Cabell Co. United States	Campbell Dr. / (parking) (38.40914, -82.37140)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Laguna, CA Sacramento Co. United States	Coney Island Circle (38.40992, -121.47661)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Higashimatsushima City, Miyagi Pref. Japan	Omagari Shimodai (38.41179, 141.24126)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Emporia, KS Lyon Co. United States	US 50 / (connector to I-35) (38.41225, -96.22947)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 79.2480	Other (At-Grade) Single-Lane	2008	New interchange configuration. Half double-lane, half triple-lane. Opened November 2008. Modified 2011-2013 to reduce lanes. NCHRP Synthesis 488. 21442
Emporia, KS Lyon Co. United States	(connector to US 50) / I-35 Ramps (38.41494, -96.22918)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 97.5360	Freeway Ramps (Grade-Separated) Single-Lane	2008	New interchange configuration. Elliptical shaped. ICD = 320 ft x 270 ft. Constructed initially as half double-lane, half triple-lane. Opened November 2008.
Charlestown, IN Clark Co. United States	Melbourne Dr. / Hawthorne Glen / Covington Dr. (38.41763, -85.72569)	Other Unknown	Unknown Unknown	3 Approaches 7 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Penrose, CO Fremont Co. United States	SR 115 / US 50 EB Ramps (38.41802, -105.04263)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2024	https://krdo.com/news/top-stories/2024/07/02/traffic-roundabout-now-open-at-interchange-of-us-50-highway-115-in-fremont-county/
Emporia, KS Lyon Co. United States	W 18th Ave. / Graphic Arts Rd. (38.41962, -96.22618)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Single-Lane	2005	Opened July 2005. BTE jurisdiction.
South Point, OH Lawrence Co. United States	Solida Rd. / US 52 WB Ramps / Collins Ave. (38.42360, -82.57472)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 47.7198	Freeway Ramps (Grade-Separated) Single-Lane	2019	ICD estimated from Google Maps linework.
Konak, İzmir Turkey	Gazi Bulvari / Anafartalar Caddesi (38.42378, 27.14286)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Canon City, CO Fremont Co. United States	Elm Ave. / S 9th St. (38.42500, -105.23167)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.1986	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2011-2013). ICD estimated from Google Maps linework.
Elk Grove, CA Sacramento Co. United States	W Camden Dr. / N Camden Dr. / Camden Lake Way (38.42732, -121.37700)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	1988	Year Completed apparent from historical Google Earth aerial photos.
Konak, İzmir Turkey	Şair Eşref Bulvarı / Şehit Nevres Bulvarı (38.42793, 27.14127)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Konak, İzmir Turkey	Şair Eşref Bulvarı / Vasif Cinar Bulvari (38.42993, 27.14160)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Union, MO Franklin Co. United States	Denmark Rd. / Saint Andrews Dr. (38.43079, -90.95348)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-lane w/ Traversable Central Island	2018	https://www.emissourian.com/local_news/union/denmark-road-opens-to-traffic-project-is-nearly-finished/article_c0073fff-d446-5b9b-be14-d1bfef9abd1d.html
Union, MO Franklin Co. United States	Prairie Dell Rd. / Denmark Rd. (38.43101, -90.97237)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2015	Yield-controlled right-turn bypass lane with large radius on north leg. Entrance to college campus.
Elk Grove, CA Sacramento Co. United States	Waterman Rd. / Sheldon Rd. (38.43814, -121.35290)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.3552	Other (At-Grade) Single-Lane	2016	Yield-controlled right-turn bypass lane on north leg. ICD estimated from Google Maps linework.
Elk Grove, CA Sacramento Co. United States	Bradshaw Rd. / Sheldon Rd. (38.43818, -121.33457)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.1617	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	ICD estimated from Google Maps linework.
Stafford, VA Stafford Co. United States	Stefaniga Farms Dr. / Bergamont Dr. / Lupine Dr. (38.44014, -77.51576)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 45.8379	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2003-2005). ICD estimated from Google Maps linework.
Harrisonburg, VA United States	Linda Ln. / Smithland Rd. (38.44244, -78.83532)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.6428	Other (At-Grade) Single-Lane	2008	Right turn bypass lane. ICD estimated from Google Maps linework.
Harrisonburg, VA Harrisonburg City Co. United States	S Carlton St. / Reservoir St. (38.44283, -78.85823)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.3527	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Arnold, MO Jefferson Co. United States	Astra Way / Missouri State Rd. (38.44301, -90.40168)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1589	Other (At-Grade) Single-Lane	2012	Located approximately 220 feet from traffic signal. https://patch.com/missouri/fenton-highridge/new-traffic-roundabout-to-be-built-on-hwy-141-between4fb74fd68b . ICD estimated from Google Maps linework.
Elk Grove, CA Sacramento Co. United States	Auberry Dr. / Laporte Way / Toad Hollow Way (38.44561, -121.39940)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 20.5787	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Union, MO Franklin Co. United States	Independence Dr. / W Main St. (38.44642, -91.02549)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.7385	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2012-2013). https://www.unionmissouri.org/document_center/talk_of_the_town_winter_2013.pdf ICD estimated from Google Maps linework.
Canon City, CO Fremont Co. United States	Main St. / 15th St. (38.44672, -105.22743)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2009	Yield-controlled right-turn bypass lane on west leg. Year Completed estimated (2007-2011).
Canon City, CO Fremont Co. United States	Dozier Ave. / Fremont Dr. (38.44797, -105.19374)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 28.0610	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2019). ICD estimated from Google Maps linework.
Bayrakli, İzmir Turkey	Manas Bulvarı / Islam Kerimov Caddesi (38.45085, 27.17924)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Montrose, CO Montrose Co. United States	Ogden Rd. / Woodgate Rd. (38.45096, -107.86297)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.7365	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2011-2012). ICD estimated from Google Maps linework.
Bayrakli, İzmir Turkey	286. Sokak / İslam Kerimov Caddesi (38.45209, 27.18364)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Unknown
Selbyville, DE Sussex Co. United States	Day Lily Pkwy. / Signature Blvd. (38.45417, -75.11646)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Selbyville, DE Sussex Co. United States	Sand Cove Rd. / Crosswinds Landing / Williamsville Rd. (38.45556, -75.10488)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Bayrakli, İzmir Turkey	Haydar Aliyev Caddesi / 286. Sokak (38.45584, 27.18125)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Bayrakli, İzmir Turkey	Sakarya Caddesi / Alija Izetbegovic Caddesi (38.45828, 27.18801)	Other Existing	Other Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown		Circulating traffic yields to entering traffic.
Bayrakli, İzmir Turkey	Mustafa Kemal Caddesi / Sakarya Caddesi (38.46062, 27.19957)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Union, MO Franklin Co. United States	Independence Dr. / N Washington Ave. (MO A) (38.46062, -91.01237)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.9265	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2012-2013). https://www.unionmissouri.org/document_center/talk_of_the_town_winter_2013.pdf ICD estimated from Google Maps linework.
Columbia, IL Monroe Co. United States	Quarry Rd. / Palmer Creek Dr. (38.46186, -90.21085)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2022	https://www.republictimes.net/another-roundabout-for-columbia/
Bayrakli, İzmir Turkey	Nur Sultan Hazarbeyev / Manas Bulvari / 1912. Sokak (38.46199, 27.17131)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Bornova, İzmir Turkey	Ankara Caddesi / İstanbul Caddesi Ramps / Genclik Caddesi (38.46201, 27.22668)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Unknown
Bayrakli, İzmir Turkey	Dumlupinar Caddesi / Fatih Sultan Mehmet Caddesi (38.46250, 27.19474)	Other Existing	Other Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown		Circulating traffic yields to entering traffic.
Bayrakli, İzmir Turkey	Alija İzetbegoviç Caddesi / Yuzbasi Ibrahim Hakki Caddesi / Yavuz Caddesi / Nur Sultan Nazarbeyev Caddesi (38.46419, 27.18732)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Bornova, İzmir Turkey	Mustafa Kamal Caddesi / Fevzi Cakmak Caddesi (38.46623, 27.21915)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown		Parking along circulatory roadway.
Saint Leonard, MD Calvert Co. United States	Calvert Beach Rd. / MD 765 Saint Leonard Rd. (38.47316, -76.50607)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 25.2460	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Selbyville, DE Sussex Co. United States	Shearwater Dr. / Royal Tern Dr. (38.47429, -75.11815)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Montrose, CO Montrose Co. United States	S Hillcrest Dr. / Sunnyside Rd. (38.47450, -107.85663)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 15.8954	Other (At-Grade) Single-Lane	2016	date: https://www.cityofmontrose.org/CivicAlerts.aspx?AID=1235 ICD estimated from Google Maps linework.
Stafford, VA Stafford Co. United States	Woodstream Blvd. / Pike Pl. (38.47492, -77.40636)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.5956	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2008). ICD estimated from Google Maps linework.
Selbyville, DE Sussex Co. United States	Shearwater Dr. / Ashley Manor Blvd. (38.47505, -75.12000)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Stafford, VA Stafford Co. United States	Doc Stone Rd. / Juggins Rd. / Moncure Ln. (38.47662, -77.41360)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 39.2698	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Sacramento, CA Sacramento Co. United States	Silva Ranch Way / (unknown) (38.47686, -121.52680)	Traffic Calming Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 61.7094	Other (At-Grade) Single-Lane	2007	Functional Class: Local ICD estimated from Google Maps linework.
Murayama City, Yamagata Pref. Japan	Tateoka (38.47723, 140.37874)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Culpeper, VA Culpeper Co. United States	US 522 (Sperryville Pike - W Evans St.) / N Blue Ridge Ave. (38.47732, -77.99810)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2023	https://starexponent.com/news/local/latest-town-roundabout-getting-ready-to-go-live/article_653784ba-61f0-11ee-bca6-fbccacf95ba9.html
Sacramento, CA Sacramento Co. United States	Coleman Ranch Way / (unknown) (38.47739, -121.52340)	Traffic Calming Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 139.3127	Other (At-Grade) Single-Lane	2007	Functional Class: Local ICD estimated from Google Maps linework.
Ashland, KY Boyd Co. United States	Winchester Ave. (US 23 Business) / 18th St. (38.47750, -82.63733)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2024	One of five mini-roundabouts in series. Road diet from five lanes to two lanes. https://visitaky.com/winchester
Ashland, KY Boyd Co. United States	Winchester Ave. (US 23 Business) / 17th St. (38.47804, -82.63838)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2024	One of five mini-roundabouts in series. Road diet from five lanes to two lanes. https://visitaky.com/winchester
Selbyville, DE Sussex Co. United States	Bayville Shores Dr. / Ocean Vista Dr. / Bay Vista Dr. (38.47838, -75.08532)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Ashland, KY Boyd Co. United States	Winchester Ave. (US 23 Business) / 16th St. (38.47860, -82.63954)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2024	One of five mini-roundabouts in series. Road diet from five lanes to two lanes. South leg is a one-way exit. https://visitaky.com/winchester
Ashland, KY Boyd Co. United States	Winchester Ave. (US 23 Business) / 15th St. (38.47922, -82.64073)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2024	One of five mini-roundabouts in series. Road diet from five lanes to two lanes. https://visitaky.com/winchester
Culpeper, VA Culpeper Co. United States	US 522 / Colonel Jameson Blvd. (38.47944, -78.00346)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.2682	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Culpeper, VA Culpeper Co. United States	Colonel Jameson Blvd. / Old Rixeyville Rd. (38.47972, -77.99637)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 54.2274	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Ashland, KY Boyd Co. United States	Winchester Ave. (US 23 Business) / 14th St. (38.47980, -82.64184)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2024	One of five mini-roundabouts in series. Road diet from five lanes to two lanes. https://visitaky.com/winchester
Culpeper, VA Culpeper Co. United States	US 15-US 29 Business / Colonel Jameson Blvd. (38.48020, -77.99338)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.7474	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Montrose, CO Montrose Co. United States	Miami Rd. / Hillcrest Dr. (38.48179, -107.85677)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019	https://www.cityofmontrose.org/701/Miami-Hillcrest-Roundabout-Project
Plymouth, CA Amador Co. United States	SR 49 / Main St. (38.48184, -120.84483)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.3320	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
(unincorporated), MO Jefferson Co. United States	13th St. / Winding Bluffs Dr. (38.48406, -90.44573)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7865	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017). ICD estimated from Google Maps linework.
Sacramento, CA Sacramento Co. United States	Rush River Dr. / Windbridge Dr. (38.48465, -121.53360)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 32.7212	Other (At-Grade) Single-Lane	2007	Functional Class: Local ICD estimated from Google Maps linework.
Prince Frederick, MD Calvert Co. United States	Oakland Hall Rd. / Abbott Ln. / Bunker Hill Rd. (38.50147, -76.55177)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2015).
Mascoutah, IL St. Clair Co. United States	Falling Leaf Way / Timberbrook Dr. / Antique Ln. (38.50300, -89.81853)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands.
Belleville, IL St. Clair Co. United States	Centreville Ave. / SR 15 SB Ramps / Whiskey Dr. (38.50516, -90.00173)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 35.5157	Freeway Ramps (Grade-Separated) Single-Lane	2013	ICD estimated from Google Maps linework.
Belleville, IL St. Clair Co. United States	Centreville Ave. / SR 15 NB Ramps / S Belt W (38.50591, -90.00011)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 47.6653	Freeway Ramps (Grade-Separated) Single-Lane	2013	ICD estimated from Google Maps linework.
Quantico Base, VA Prince William Co. United States	Barnett Ave. / Russell Rd. / Dunlap Rd. / Damato St. (38.51066, -77.31001)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)
Prince Frederick, MD Calvert Co. United States	Skipjack Rd. / Ketch Rd. (38.51100, -76.64140)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)
Belleville, IL St. Clair Co. United States	SR 159 (N Illinois St. - S Illinois St.) / E Main St. / W Main St. (38.51360, -89.98421)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Single-Lane		Painted splitter islands. Circle with roundabout features.
Frankford, DE Sussex Co. United States	Sand Trap Circle (38.51939, -75.11730)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
São Sebastião, Setúbal Setúbal Portugal	Avenida Luísa Todi / Avenida Jaime Rebelo (38.52272, -8.88670)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
São Sebastião, Setúbal Setúbal Portugal	Praceta Dona Olga Morães Sarmento [Avenida Jaime Cortesão / Avenida Infante Dom Henrique / Avenida Bento de Jesus Caraça / Avenida Manuel I] (38.52530, -8.87502)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Winters, CA Yolo Co. United States	SR 128 (E Grant Ave.) / Walnut Ln. / (parking lot) (38.52629, -121.96733)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.8992	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2018). ICD estimated from Google Maps linework.
Millville, DE Sussex Co. United States	Substation Rd. / Huntington St. / Tybee St. (38.52679, -75.12575)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.3737	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2009). ICD estimated from Google Maps linework.
Shiloh, IL St. Clair Co. United States	Wingate Blvd. / London Ln. (38.52931, -89.92521)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
São Sebastião, Setúbal Setúbal Portugal	Praça de Portugal [Avenida Dom João II / Avenida Infante Dom Henrique / Avenida Pedro Álvares Cabral / Avenida Afonso de Albuquerque] (38.53010, -8.87533)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Swansea, IL St. Clair Co. United States	Berwick Crossing (38.53100, -89.92281)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Prince Frederick, MD Calvert Co. United States	Prince Frederick Blvd. / Thoroughbred Dr. / Equestrian Way (38.53171, -76.58916)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
São Sebastião, Setúbal Setúbal Portugal	N10 (Rua António José Baptista - Avenida do Alentejo) / Avenida Pedro Álvares Cabral (38.53207, -8.87541)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Davis, CA Yolo Co. United States	Old Davis Rd. / California Ave. (38.53318, -121.75180)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.7649	Other (At-Grade) Single-Lane	2011	Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Hughesville, MD Charles Co. United States	MD 231 / MD 5 SB Ramps (38.53381, -76.77969)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 58.8579	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2005	ICD estimated from Google Maps linework.