Roundabouts Database Index

29483 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
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.
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.
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
(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.
(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.
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.
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).
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.
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.
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.
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
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.
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).
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)
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
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.
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).
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.
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).
(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.
(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.
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.
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 / 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.
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.
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).
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.
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.
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.
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.
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.
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.
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.
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.
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.
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)
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.
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
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.
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.
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.
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.
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.
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 / 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.
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.
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.
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.
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.
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.
Nampa, ID Canyon Co. United States	S Midland Blvd. / Iowa Ave. (43.55439, -116.59279)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2024	https://www.facebook.com/cityofnampa.us/posts/-exciting-safety-news-for-our-community-were-happy-to-announce-the-installation-/900763452095945/
(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.
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.
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	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.
(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	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.
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.
(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.
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.
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).
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.
(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.
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
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
(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.
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.
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.
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.
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.
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 (43.56586, -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	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).
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).
Jackson, WY Teton Co. United States	Gros Ventre Junction (US-26 / US 89 / US 191 / Golf Course Rd / Gros Ventre Rd) (43.57420, -110.73327)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.9371	Other (At-Grade) Single-Lane	2018	Under construction summer 2018. https://www.nps.gov/grte/planyourvisit/gros-ventre-roundabout.htm The Gros Ventre intersection on US Hwy 26/89/191 has an average daily traffic volume of approximately 14,200 vehicles and almost 200 bicycle riders during the summer season. ICD estimated from Google Maps linework.
Boise, ID Ada Co. United States	E Parkcenter Blvd. / Old Hickory Way (43.57434, -116.13364)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.4191	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Nampa, ID Canyon Co. United States	N Happy Valley Rd. / E Victory Rd. (43.57444, -116.51303)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2021	Intersection moved 0.1 mile south due to airport. https://www.idahopress.com/news/local/1903-wright-flyer-sculpture-featured-at-new-roundabout-near-nampa-airport/article_a2bb7a2a-7fdf-5110-b36f-8657c33dda60.html
Meridian, ID Ada Co. United States	Victory Rd. / S Ten Mile Rd. (43.57570, -116.43378)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2022	Right-turn-only lanes on all legs.
Meridian, ID Ada Co. United States	E Victory Rd. / S Locust Grove Rd. (43.57574, -116.37461)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2023	https://www.youtube.com/watch?v=ONrQ1FFqSR8.
Boise, ID Ada Co. United States	E Parkcenter Blvd. / S Wise Way (43.57577, -116.13773)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.6879	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Nampa, ID Canyon Co. United States	E Victory Rd. / N Kings Rd. (43.57584, -116.53288)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2022	https://twitter.com/NampaPIO/status/1606348916282101760
Nampa, ID Canyon Co. United States	Robinson Rd. / E Victory Rd. (43.57596, -116.49388)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2018-2019).
Boise, ID Ada Co. United States	E Parkcenter Blvd. / E Warm Springs Ave. (43.57647, -116.13975)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.5314	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Guelph, ON Wellington Canada	Ontario Hwy 7 / Jones Baseline (43.57942, -80.18623)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0122	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Nampa, ID Canyon Co. United States	Airport Rd. / N Robinson Blvd. (43.58690, -116.49334)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2023
Mississauga, ON Peel Canada	Duke of York Blvd. / Square One Dr. (43.59181, -79.64742)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.0056	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Sochi, Krasnodar Sochi Russia	ulitsa Gagarina / Moskovskaya ulitsa / ulitsa Chaykovskogo (43.59482, 39.72087)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Meridian, ID Ada Co. United States	S Vanguard Way / S Wayfinder Ave. / (parking) (43.59800, -116.43116)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2017	Right-turn-only lane on northeast leg.
Sioux Falls, SD Minnehaha Co. United States	Career Ave. / W Nobel St. (43.59985, -96.78073)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2008	Right-turn-only lane on north leg; added lane right-turn bypass lane on east leg. ICD estimated from Google Earth.
Meridian, ID Ada Co. United States	S Wayfinder Ave. / W Cobalt Dr. (43.60115, -116.42905)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2018).
Boise, ID Ada Co. United States	S. Touchmark Way / S. Worth Way (43.60206, -116.34610)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 30.2704	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Boise, ID Ada Co. United States	Crescent Rim Dr. / Eastover Terr. (43.60307, -116.21526)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 61.4047	Other (At-Grade) Single-lane w/ Traversable Central Island	2013	ICD estimated from Google Maps linework.
Boise, ID Ada Co. United States	S. Touchmark Way / E. Louise Dr. (43.60317, -116.34880)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 29.4050	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Laconia, NH Belknap Co. United States	US 3 / NH 11B (43.60333, -71.45460)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 35.4589	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Nampa, ID Canyon Co. United States	E Franklin Rd. / Star Rd. / N Robinson Rd. (43.60497, -116.49357)	Roundabout Removed	All-Way Yield Unknown	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Single-Lane	2012	Roundabout removed 2020 in conjunction with construction of Amazon center. Original roundabout completed 2012 and had right-turn-only lanes on north and south legs.
Mount Pleasant, MI Isabella Co. United States	Mosher St. / Main St. (43.60531, -84.77661)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 21.6206	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Sochi, Krasnodar Sochi Russia	Plastunskaya ulitsa Ramps / Donskaya ulitsa Ramps (43.60708, 39.73571)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max)
Sioux Falls, SD Minnehaha Co. United States	N Granite Ln. / N Granite Ct. (43.60869, -96.76803)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.2440	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2015
Midland, MI Midland Co. United States	Business US 10 WB / E Patrick Rd. / E Lyon Rd. (43.61168, -84.21498)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways 43.2366	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Meridian, ID Ada Co. United States	Pine St. / Webb Rd. (43.61220, -116.36840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.9126	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	ICD estimated from Google Maps linework.