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
Boise, ID Ada Co. United States	E Parkcenter Blvd. / S Shadywood Way (43.57291, -116.12957)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2018).
Meridian, ID Ada Co. United States	S Eagle Rd. / E Zaldia Dr. / E Zaldia St. (43.56661, -116.35440)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2021	Year Completed estimated (2021-2022).
Cudillero, Principality of Asturias Asturias Spain	CU-8 / A-8 Ramps (43.56586, -6.24125)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 39.8079	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Meridian, ID Ada Co. United States	E Wrightwood Dr. / S Luminous Ave. / E Crest Ridge Dr. (43.56552, -116.37989)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2014).
Cudillero, Principality of Asturias Asturias Spain	CU-8 / A-8 Ramps (43.56410, -6.24234)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 47.5978	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Tapia de Casariego, Principality of Asturias Asturias Spain	N-634 / AS-23 (43.56306, -6.92345)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 74.4270	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Nampa, ID Canyon Co. United States	Happy Valley Rd. / Amity Ave. (43.56146, -116.51290)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.2726	Other (At-Grade) Single-Lane	2006	Designed for ultimate two-lane w/ 180-ft ICD. Current 160-ft single-lane is initial build. Previously controlled by 4-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Nampa, ID Canyon Co. United States	E Amity Rd. / S Robinson Blvd. (43.56137, -116.49376)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.5418	Other (At-Grade) Single-Lane	2019	Completed in May 2019. Initial build is 160' ICD, expandible outward to 2x1 (160'x180') in the future. ICD estimated from Google Maps linework.
(unincorporated), WI Sauk Co. United States	Moon Rd. / Timothy Ln. (43.56132, -89.77681)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.0800	Other (At-Grade) Single-Lane	2010	Fatal crash July 10, 2010. ICD estimated from Google Maps linework.
Meridian, ID Ada Co. United States	S Eagle Rd. / E Amity Rd. (43.56130, -116.35436)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Single-Lane	2012	Constructed initially as single-lane roundabout. Expanded in 2021-2022 to 2x2 with merging right-turn bypass lane on north leg. https://www.youtube.com/watch?v=mKWTT7Upuss
Meridian, ID Ada Co. United States	W Amity Rd. / S Ten Mile Rd. (43.56108, -116.43378)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2021	Right-turn-only lanes on all legs. https://www.achdidaho.org/Projects/proj_intersection_ten-mile-road-and-amity-road-roundabout.aspx
(unincorporated), WI Sauk Co. United States	CTH BD (Fern Dell Rd.) / Moon Rd. / Giebel Ct. (43.56057, -89.78316)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.8114	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Series of 4 roundabouts. ICD estimated from Google Maps linework.
Portage, WI Columbia Co. United States	W Wisconsin St. (STH 16) / Columbia Dr. (STH 127) / I-39 SB Ramps (43.56023, -89.49496)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.9282	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2018	https://www.wiscnews.com/portagedailyregister/news/local/dot-nearly-ready-to-open-portage-s-first-roundabout-to/article_bdd0df9d-4e73-52b4-99de-252ab92cf7c8.html#4 ICD estimated from Google Maps linework.
Wellesley, ON Waterloo Canada	Ament Line / Herrgott Rd. (43.55994, -80.64612)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2018	https://www.newhamburgindependent.ca/news-story/8660450-wellesley-township-roundabout-construction-begins-next-week/. Year Completed estimated (2018-2019).
Tapia de Casariego, Principality of Asturias Asturias Spain	AS-23 / (unknown) (43.55961, -6.92424)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.9288	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
(unincorporated), WI Sauk Co. United States	CTH BD (Fern Dell Rd.) / US 12 WB Ramps (43.55867, -89.78077)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.5437	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2010	Series of 4 roundabouts. ICD estimated from Google Maps linework.
Mississauga, ON Peel Canada	The Credit Woodlands / McBride Ave. / Credit Heights Dr. (43.55853, -79.65842)	Rotary Existing	Other None	4 Approaches 4 Driveways	Other (At-Grade) Single-Lane		Yields in circulatory roadway.
Cudillero, Principality of Asturias Asturias Spain	Autovía del Cantábrico (43.55817, -6.20578)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 38.0820	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
(unincorporated), WI Sauk Co. United States	CTH BD (Fern Dell Rd.) / US 12 EB Ramps (43.55774, -89.77940)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.6788	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2010	Series of 4 roundabouts. ICD estimated from Google Maps linework.
Cudillero, Principality of Asturias Asturias Spain	N-632 / A-8 Ramps (43.55717, -6.17028)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 59.7205	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Cudillero, Principality of Asturias Asturias Spain	N-632 / A-8 Ramps (43.55713, -6.20690)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways 38.0827	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Cudillero, Principality of Asturias Asturias Spain	Tolombreo de Arriba, 20 (43.55667, -6.14584)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 44.1416	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
(unincorporated), WI Sauk Co. United States	CTH BD (Fern Dell Rd.) / Timothy Ln. (43.55597, -89.77811)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 39.8145	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Series of 4 roundabouts. ICD estimated from Google Maps linework.
Mississauga, ON Peel Canada	Hazelton Pl. / Plantation Pl. (43.55342, -79.71753)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 13.8491	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
El Franco, Principality of Asturias Asturias Spain	N-634 / Camino de Santiago (43.54909, -6.82078)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 46.7441	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Cudillero, Principality of Asturias Asturias Spain	N-632 / A-8 Ramps (43.54814, -6.32877)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 21.6411	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Ribadeo, Galicia Lugo Spain	N-634 / LU-P-5206 (43.54724, -7.15185)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 47.6111	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Nampa, ID Canyon Co. United States	Happy Valley Rd. / Greenhurst Rd. (43.54679, -116.51290)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1488	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Valdés, Principality of Asturias Asturias Spain	N-632 / A-8 Ramps / Canero (43.54648, -6.44675)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 55.4028	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Meridian, ID Ada Co. United States	E Lake Hazel Rd. / S Locust Grove Rd. (43.54644, -116.37449)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2022	Year Completed estimated (2021-2022).
Valdés, Principality of Asturias Asturias Spain	N-632 / VA-3 / A-8 Ramps (43.54457, -6.39757)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 50.2103	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Coaña, Principality of Asturias Asturias Spain	Pol. Ind. Río Pinto (43.54422, -6.76233)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 50.2106	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Navia, Principality of Asturias Asturias Spain	N-634 / NV-5 (43.54412, -6.65608)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 70.9876	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
El Franco, Principality of Asturias Asturias Spain	FR-1 / A-8 Ramps (43.54392, -6.82076)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 42.4195	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Dayton, ME York Co. United States	New County Rd. / Clark Mills Rd. / Hight Rd. / Goodwins Mills Rd. (43.54381, -70.59252)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 23.3741	Other (At-Grade) Unknown	2018	ICD estimated from Google Maps linework.
Woolwich, ON Waterloo Regional Municipality Canada	Arthur St. / Sawmill Rd. (43.54355, -80.54693)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 60.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2006
Castropol, Principality of Asturias Asturias Spain	AS-31 / A-8 EB Ramps (43.54295, -7.02135)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.6888	Freeway Ramps (Grade-Separated) Single-Lane		ICD estimated from Google Maps linework.
Coaña, Principality of Asturias Asturias Spain	Pol. Ind. Río Pinto / Pol. Ind. Río Pinto III (43.54273, -6.76110)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Ribadeo, Galicia Lugo Spain	N-634 / Rua dos Galos / / A-8 EB Ramps (43.54178, -7.04636)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.0924	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Tapia de Casariego, Principality of Asturias Asturias Spain	N-634 / Avenida San Esteban (43.54176, -6.98612)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 48.4812	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Coaña, Principality of Asturias Asturias Spain	N-634 / Pol. Ind. Río Pinto / A-8 Ramps (43.54163, -6.76568)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 68.3933	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Ribadeo, Galicia Lugo Spain	N-634 / N-642 Ramps (43.54127, -7.06795)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 59.7363	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Valdés, Principality of Asturias Asturias Spain	VA-3 / AS-268 (43.54081, -6.39177)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 19.9122	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Tapia de Casariego, Principality of Asturias Asturias Spain	N-634 / CP-1 / A-8 Ramps (43.53976, -6.98492)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 53.6774	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Ribadeo, Galicia Lugo Spain	N-634 / N-642 (43.53956, -7.05516)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 35.4965	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Valdés, Principality of Asturias Asturias Spain	N-634 / A-8 Ramps (43.53637, -6.50281)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 42.4249	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Theresa, WI Dodge Co. United States	STH 67-STH 175 / STH 28 / CR TW (43.53623, -88.44702)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Single-Lane	2022	External truck aprons on north, east, and south legs.
Sioux Falls, SD Minnehaha Co. United States	E 18th St. / S Highline Pl. / S Highline Ave. (43.53603, -96.65424)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2019	Right-turn-only lanes on all legs. Year Completed estimated (2018-2020).
Navia, Principality of Asturias Asturias Spain	NV-5 / A-8 Ramps (43.53539, -6.65932)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 52.8155	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Navia, Principality of Asturias Asturias Spain	N-634 / A-8 Ramps (43.53481, -6.69293)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 74.4619	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Castropol, Principality of Asturias Asturias Spain	AS-31 / Pol. Ind. Barres (43.53464, -6.98657)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 57.1453	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Navia, Principality of Asturias Asturias Spain	N-634 / NV-3 / NV-4 (43.53359, -6.70118)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 34.6341	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
(unincorporated), WI Sauk Co. United States	Reedsburg Rd. / US 12 EB Ramps (43.53258, -89.78800)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.7569	Freeway Ramps (Grade-Separated) Single-Lane	2010	ICD estimated from Google Maps linework.
(unincorporated), WI Sauk Co. United States	Reedsburg Rd. / US 12 WB Ramps (43.53249, -89.78612)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.5617	Freeway Ramps (Grade-Separated) Single-Lane	2010	ICD estimated from Google Maps linework.
Milton, ON Halton Canada	Dublin Line / Campbellville Rd. / James Snow Pkwy. (43.53018, -79.93243)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	Year Completed estimated (2019-2020).
Valdés, Principality of Asturias Asturias Spain	N-634 / A-8 Ramps (43.52873, -6.55152)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 38.1006	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Idaho Falls, ID Bonneville Co. United States	E Iona Rd. / 25th E (43.52586, -111.98394)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2006).
Midland, MI Midland Co. United States	E Freeland Rd. / S Sasse Rd. (43.52518, -84.22937)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2021	Rural, high-speed approaches.
Freeland, MI Saginaw Co. United States	W Freeland Rd. / N River Rd. (43.52509, -84.13434)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2020	https://www.tittabawassee.org/news_detail_T5_R8.php
Split, Split-Dalmatia Croatia	Ul. Zrinsko Frankopanska / Put Lore / Poljudsko šetalište (43.52379, 16.43300)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Waterloo, ON Waterloo Canada	Millennium Blvd. / Crossgate Blvd. (43.52326, -80.49690)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2011	West leg stubbed. Year Completed estimated (2009-2012).
Viroqua, WI Vernon Co. United States	US 14-US 61 / STH 27-STH 82 / CR T (43.52202, -90.86531)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Single-Lane	2023	Elliptical shaped. ICD = 170 ft x 155 ft.
Oakville, ON Halton Canada	William Halton Pkwy. / Ninth Line (43.52182, -79.71624)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Unknown	2020
Guelph, ON Wellington County Canada	Summerfield Dr. / Colonial Dr. (43.51809, -80.18253)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.4466	Other (At-Grade) Single-Lane	2001	Located in Pine Ridge East residenital subdivision Functional Class: Collector ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	University Ave E / Labrador Dr (43.51759, -80.51453)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 41.5720	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Labrador Dr / RIM Campus Ln (43.51601, -80.51332)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 24.2510	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Guelph, ON Wellington Canada	Frederick Dr. / Colonial Dr. / Goodwin Dr. (43.51457, -80.17591)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2006-2009).
Saginaw, MI Saginaw Co. United States	Davis Rd. / College Dr. (43.51453, -83.95585)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 21.3360	Other (At-Grade) Single-Lane	2008	Right-turn-only arrows and legend on each entry. https://www.mlive.com/news/saginaw/2008/09/svsu_calms_traffic_in_effort_t.html.
(unincorporated), WI Sauk Co. United States	STH 33 / US 12 EB Ramps (43.51449, -89.78516)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.7080	Freeway Ramps (Grade-Separated) Single-Lane	2010	ICD estimated from Google Maps linework.
(unincorporated), WI Sauk Co. United States	STH 33 / US 12 WB Ramps (43.51445, -89.78288)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.5741	Freeway Ramps (Grade-Separated) Single-Lane	2010	ICD estimated from Google Maps linework.
Idaho Falls, ID Bonneville Co. United States	E Lincoln Rd. / E Hitt Rd. (N 25th) (43.51143, -111.98410)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2001	Right-turn-only lane on west leg. Year Completed estimated (1992-2003). Converted from single-lane to multilane in 2018. 21442
Idaho Falls, ID Bonneville Co. United States	E Lincoln Rd. / Ammon Rd. (43.51133, -111.96428)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.7101	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	New Bedford Dr / Eastbridge Blvd / Shediac Crescent (43.51109, -80.50054)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.5765	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Ammon, ID Bonneville Co. United States	E Lincoln Rd. / N 45th E (Crowley Rd.) (43.51059, -111.94433)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2020	https://www.eastidahonews.com/2020/09/major-intersection-to-close-next-week-for-roundabout-construction/
Guelph, ON Wellington Canada	Goodwin Dr. / Hall Ave. / Tolton Dr. (43.51005, -80.17930)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2006-2009).
Saginaw, MI Saginaw Co. United States	Pierce Rd. / S Entrance Dr. (43.50866, -83.96070)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2012	Entrance to Saginaw Valley State University. Year Completed estimated (2011-2014).
Milton, ON Halton Canada	Louis St Laurent Ave. / Kennedy Cir. (northeast end) / (future road) (43.50807, -79.83568)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	Year Completed estimated (2018-2021).
Guelph, ON Wellington Canada	Goodwin Dr. / Beaver Meadow Dr. (43.50679, -80.18360)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Single-Lane	2002	Year Completed estimated (2000-2006).
Milton, ON Halton Canada	Tremaine Rd. / Steeles Ave. W (43.50658, -79.91068)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 48.5095	Other (At-Grade) Single-Lane	2015	Fourth leg closed, built for future expansion. ICD estimated from Google Maps linework.
Guelph, ON Wellington Canada	Clairfields Dr. / Farley Dr. (43.50556, -80.19153)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1998-2006).
Milton, ON Halton Canada	Louis St Laurent Ave. / Kennedy Cir. (southwest end) / (future road) (43.50490, -79.83937)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	Year Completed estimated (2018-2021).
Milton, ON Halton Canada	Louis Saint Laurent Ave. / Yates Dr. (43.50033, -79.84411)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.7175	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Fourth leg stubbed off. ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Conestoga Rd. / Kraus Dr. (43.49983, -80.52906)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2009	Add lane right-turn bypass lane on west leg.
Waterloo, ON Waterloo Canada	Davenport Rd. / Old Abbey Rd. / (shopping center) (43.49957, -80.52551)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.0000	Other (At-Grade) Single-Lane	2012	Right-turn-only leg on north leg. Year Completed estimated (2011-2012).
Kuna, ID Ada Co. United States	Hickory Valley Rd. / Courage Ave. (43.49807, -116.32973)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2022
Oakville, ON Halton Canada	Sixth Line / William Halton Pkwy. (43.49724, -79.75367)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	https://www.halton.ca/For-Residents/Roads-Construction/Construction-Projects/William-Halton-Parkway-Extension-Project
Idaho Falls, ID Bonneville Co. United States	Memorial Dr. / Riverside Dr. / E St. (43.49716, -112.04057)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.5861	Other (At-Grade) Single-Lane	2012	Right-turn-only lane on west leg. ICD estimated from Google Maps linework.
Milton, ON Halton Canada	Campbellville Rd. / Campbell Ave. (43.49642, -79.97028)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2022	Year Completed estimated (2021-2022).
Idaho Falls, ID Bonneville Co. United States	1st St. / 45th St. E (Crowley Rd.) (43.49621, -111.94440)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8637	Other (At-Grade) Single-Lane	2020	Designed to be expandable inward to dual lanes in the future.
Milton, ON Halton Canada	Tremaine Rd. / Main St. W (43.49537, -79.89726)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 51.1177	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	ICD estimated from Google Maps linework.
Nalchik, Kabardino-Balkaria Nalchik Russia	ulitsa Golovko / ulitsa Tarchokova / ulitsa Kalyuzhnogo (43.49247, 43.57990)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x2 max)
Kuna, ID Ada Co. United States	N Linder Ave. / W Main St. / E 3rd St. (43.49056, -116.41390)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.7271	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Sioux Falls, SD Minnehaha Co. United States	69th St. / Southeastern Ave. (43.48928, -96.68768)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.7250	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	ICD estimated from Google Maps linework.
Baraboo, WI Sauk Co. United States	Old US 12 / CTH BD (43.48896, -89.77718)	Roundabout Removed	All-Way Yield None	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2010	Constructed in 2010. Removed in 2017(?) due to bypass expansion.
Idaho Falls, ID Bonneville Co. United States	S Utah Ave. / Bridgeport Dr. (43.48859, -112.04979)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.6574	Other (At-Grade) Single-Lane	2002	Eagle Rock Fountain in center island. Roundabout was partially reconstructed with geometric improvements in 2014. Original construction was in 2002. ICD estimated from Google Maps linework.
Idaho Falls, ID Bonneville Co. United States	S Boulevard / N Corner Ave. / Elm St. (43.48859, -112.03375)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 32.9270	Other (At-Grade) Single-Lane	2018	Fourth leg is departure only. ICD estimated from Google Maps linework.
Idaho Falls, ID Bonneville Co. United States	Bridgeport Dr. / River Walk Dr. (43.48855, -112.04801)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.4610	Other (At-Grade) Single-Lane	2007	Originally built without splitter islands. Splitter islands added to north and west legs in 2016. ICD estimated from Google Maps linework.
Milton, ON Halton Canada	Whitlock Ave. / Farmstead Dr. (43.48834, -79.84905)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.6626	Other (At-Grade) Single-Lane	2018	Under construction in Streetview Aug 2018 ICD estimated from Google Maps linework.
Milton, ON Halton Canada	Scott Blvd. / Willet Terr. / Dymott Ave. (43.48676, -79.86895)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.4619	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2009-2013). ICD estimated from Google Maps linework.
Milton, ON Halton Canada	Farmstead Dr. / Etheridge Ave. (43.48622, -79.84111)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.3964	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.