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
Buffalo, NY Erie Co. United States	Colonial Circle (Richmond Ave. / Lafayette Ave.) (42.92026, -78.88171)	Other Existing	Unknown Unknown	0 Approaches 0 Driveways 71.7180	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Stoughton, WI Dane Co. United States	US 51-STH 138 / US 51 / STH 138 (42.91876, -89.24947)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2022	https://isthmus.com/events/u-s-highway-51-construction/
Franklin, WI Milwaukee Co. United States	(park entrance road) / (parking) (42.91866, -88.01334)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2011-2014).
Rutland, WI Dane Co. United States	STH 138 / Kettle Park Way (42.91821, -89.25204)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.4812	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Stoughton, WI Dane Co. United States	US 51-STH 138 / Hoel Ave. / Silverado Dr. (42.91814, -89.24587)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2022	https://isthmus.com/events/u-s-highway-51-construction/
Oregon, WI Dane Co. United States	STH 138 / US 14 EB Ramps (42.91774, -89.36817)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.1083	Freeway Ramps (Grade-Separated) Single-Lane	2011	ICD estimated from Google Maps linework.
Oregon, WI Dane Co. United States	STH 138 / US 14 WB Ramps (42.91764, -89.36607)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.2309	Freeway Ramps (Grade-Separated) Single-Lane	2011	ICD estimated from Google Maps linework.
Grand Blanc, MI Genesee Co. United States	E Grand Blanc Rd. / Embury Rd. (42.91693, -83.64652)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://www.abc12.com/news/grand-blanc-road-reopens-following-roundabout-construction-project/article_39b8087a-3083-5a44-b841-c1872cfd8918.html.
Phelps, NY Ontario Co. United States	Fort Hill Rd. / McIvor Rd. / CR 23 (42.91672, -77.04341)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019	https://www.fltimes.com/news/ontario-county-s-newest-roundabout-opens-in-phelps/article_3fe5e190-49db-5f3b-a42f-7da6c3073a08.html .
Lake Eastbrook, MI Kent Co. United States	Lake Eastbrook Blvd. SE / Sparks Dr. SE (42.91585, -85.57470)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2022
Chubbuck, ID Bannock Co. United States	N Hiline Rd. / Mallard St. (42.91435, -112.45179)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.2383	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Year Completed estimated (2009-2011). ICD estimated from Google Maps linework.
Swartz Creek, MI Genesee Co. United States	Grand Blanc Rd. / Linden Rd. (42.91411, -83.77008)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021
Swartz Creek, MI Genesee Co. United States	Grand Blanc Rd. / Morrish Rd. (42.91289, -83.83040)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://swartzcreekview.mihomepaper.com/articles/traffic-circle-construction-underway-bridge-work-set-to-begin/
Muskego, WI Waukesha Co. United States	Woods Rd. / Moorland Rd. / Durham Dr. (42.91086, -88.09789)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2018-2021).
Fort Erie, ON Niagara Canada	Queen St. / Goderich St. (42.90951, -78.91385)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.7419	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Grand Blanc, MI Genesee Co. United States	S Dort Hwy. / I-75 NB Ramps (42.90822, -83.64880)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2020	https://www.mlive.com/news/flint/2020/11/dort-highway-extension-roundabouts-now-open-to-traffic.html
Swanzey, NH Cheshire Co. United States	Monadnock Hwy (Hwy 12) / Lake St. / Swanzey Factory Rd. (42.90817, -72.25933)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 37.6156	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Pocatello, ID Bannock Co. United States	Hurley Dr. / Pole Line Rd. (42.90782, -112.46041)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1149	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	ICD estimated from Google Maps linework.
Franklin, WI Milwaukee Co. United States	Drexel Ave. / Shoppes of Wyndham driveway (42.90494, -88.03474)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.3700	Other (At-Grade) Single-Lane	2008	Opened July 2008. ICD estimated from Google Maps linework.
Fleming, NY Cayuga Co. United States	W Lake Rd. / White Bridge Rd. / Lake Ave. / Sand Beach Rd. / (park access) (42.90470, -76.54446)	Rotary Existing	Other None	5 Approaches 0 Driveways 109.7280	Other (At-Grade) Single-Lane		Mixture of Yield and Stop signs.
Grand Blanc, MI Genesee Co. United States	S Dort Hwy. / I-75 SB Ramps (42.90437, -83.65300)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2020	https://www.mlive.com/news/flint/2020/11/dort-highway-extension-roundabouts-now-open-to-traffic.html
Grand Blanc, MI Genesee Co. United States	E Cook Rd. / Dort Hwy. (42.90188, -83.65195)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.mlive.com/news/flint/2020/11/dort-highway-extension-roundabouts-now-open-to-traffic.html
Canandaigua, NY Ontario Co. United States	CR 10 / CR 4 (42.90187, -77.24570)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.2451	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Franklin, WI Milwaukee Co. United States	S 51st St. / W Drexel Ave. (42.90151, -87.98018)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019
Bennington, VT Bennington Co. United States	Rte 7A / Willma St. (42.89936, -73.20987)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2016	https://www.benningtonbanner.com/archives/northside-drive-roundabout-open-to-traffic/article_28eed74c-dc7f-5ce0-a331-ef606872868c.html
Buffalo, NY Erie Co. United States	Porter Ave. / I-190 NB On-Ramp / Sheridan Terr. (42.89887, -78.89722)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 37.6213	Freeway Ramps (Grade-Separated) Single-Lane	2016	ICD estimated from Google Maps linework.
Fort Erie, ON Niagara Canada	Lakeshore Rd. / Dominion Rd. (42.89540, -78.92324)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.0000	Other (At-Grade) Single-Lane	2022	https://www.niagararegion.ca/projects/dominion-road/default.aspx
Peterborough, NH Hillsborough Co. United States	Monadnock Community Hospital entrance / parking areas (42.89412, -71.93811)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.3743	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Grand Rapids, MI Kent Co. United States	Pfeiffer Woods Dr. / (unknown) (42.89293, -85.59628)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.9999	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Peterborough, NH Hillsborough Co. United States	Old Street Rd. / Parmalee Dr. / Monadnock Community Hospital entrance (42.89272, -71.93790)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.3750	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Derry, NH Rockingham Co. United States	Rte 28 (N Main St.-Londonderry Turnpike) / E Broadway / Chester Rd. / E Derry Rd. (42.89225, -71.31208)	Other Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 33.2503	Other (At-Grade) Single-Lane		Pedestrian access to central island. No splitter islands. ICD estimated from Google Maps linework.
Canandaigua, NY Ontario Co. United States	CR 10 / CR 46 (42.88665, -77.24563)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.5031	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Buffalo, NY Erie Co. United States	Niagara Square (42.88642, -78.87815)	Other Existing	Other Other	7 Approaches 0 Driveways 115.5118	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Brattleboro, VT Windham Co. United States	Rte 9 / Rte 5 (42.88500, -72.55670)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x2 max)	1999	Adjacent to I-89. Heavy truck volume (>7%).
Peterborough, NH Hillsborough Co. United States	NH 101 / Shaw's Plaza entrance (42.87519, -71.96153)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 28.0080	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Kentwood, MI Kent Co. United States	Breton Rd. SE / Walma Ave. SE (42.87452, -85.59791)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.1371	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Swanzey, NH Cheshire Co. United States	Old Homestead Hwy. (NH 32) / Sawyer's Crossing Rd. (42.87428, -72.28155)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.nh.gov/dot/org/projectdevelopment/highwaydesign/roundabouts/documents/roundabout-pho-swanzey40485.pdf
Londonderry, NH Rockingham Co. United States	Michels Way / First Ave. (42.87405, -71.35055)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2018).
Londonderry, NH Rockingham Co. United States	Michels Way / Main St. (42.87228, -71.35008)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2018-2019).
Clifton Park, NY Saratoga Co. United States	Rte 146 / Rte 146A / Vischer Ferry Rd. (42.87020, -73.82034)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.7660	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	https://wnyt.com/news/last-phase-of-construction-underway-at-clifton-park-roundabout-route-146-route-146a-vischer-ferry-road/5528433/ ICD estimated from Google Maps linework.
Schenectady, NY Schenectady Co. United States	Rte 29 / Glenridge Rd. (42.86709, -73.90634)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.7653	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Buffalo, NY Erie Co. United States	Fuhrmann Blvd. / Outer Harbor Dr. (42.86220, -78.87408)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.3945	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Amesbury, MA Essex Co. United States	Market St (Rte 150) / Elm St / Main St (Rte 150) / High St (42.85794, -70.93010)	Traffic Calming Circle Existing	Other None	4 Approaches 0 Driveways 13.1324	Other (At-Grade) Single-Lane		On-Street parking in the traffic circle ICD estimated from Google Maps linework.
Muskego, WI Waukesha Co. United States	CTH Y (Racine Ave.) / Kelsey Dr. (42.85757, -88.15911)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.6425	Other (At-Grade) Single-Lane	2009	Opened November 9, 2009. ICD estimated from Google Maps linework.
Amesbury, MA Essex Co. United States	Friend St / School St (Rte 150) / Allens Ct (42.85615, -70.93410)	Roundabout Existing	Other None	4 Approaches 0 Driveways 26.2656	Other (At-Grade) Single-Lane	2001	North leg stop-controlled. Fire station on south leg. Resurfaced on 2017. ICD estimated from Google Maps linework.
Whitewater, WI Jefferson Co. United States	Burr Oak Trl. / N Acorn Ridge (42.85569, -88.74258)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.6434	Other (At-Grade) Single-Lane	2007	Opened October 2007. Functional Class: Local ICD estimated from Google Maps linework.
(unincorporated), WI Dane Co. United States	US 14 / STH 92 / Biglow Rd. (42.85434, -89.34080)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2022	https://www.channel3000.com/u-s-highway-14-to-close-between-oregon-brooklyn-starting-next-week/
Whitewater, WI Jefferson Co. United States	Burr Oak Trl. / (unknown) (42.85222, -88.74105)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.7695	Other (At-Grade) Single-Lane	2007	Opened November 2007. Functional Class: Local ICD estimated from Google Maps linework.
Columbus, MI St. Clair Co. United States	Gratiot Ave. / Palms Rd. (42.85156, -82.63709)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://www.thetimesherald.com/story/news/2021/09/29/roundabout-palms-gratiot-open-traffic-week-columbus-twp/5913286001/
Tillsonburg, ON Oxford Canada	Vienna Rd. (Hwy 19) / Talbot Rd. (Hwy 3) (42.84913, -80.72222)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.5272	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2013-2016). ICD estimated from Google Maps linework.
Schenectady, NY Schenectady Co. United States	Balltown Rd. / Aqueduct Rd. / Williams St. (42.84861, -73.88891)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.6619	Other (At-Grade) Single-Lane	2016	Scheduled to be converted to 2 lanes in Dec. 2017. ICD estimated from Google Maps linework.
Bishkek, Bishkek Kyrgyzstan	(unknown) (42.84452, 74.52832)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Lackawanna, NY Erie Co. United States	McKinley Pkwy. / Choate Ave. / Red Jacket Pkwy. (42.84436, -78.81496)	Other Existing	Unknown Unknown	5 Approaches 0 Driveways 138.3584	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Nakhodka, Primorye Nakhodka Russia	Nakhimovskiy prospekt / ulitsa Shevchenko / Pereval'naya ulitsa (42.84359, 132.91834)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Bishkek, Bishkek Bishkek Kyrgyzstan	Shabdan Baatyr St. / Akhunbayev St. (42.84171, 74.63644)	Unknown Existing	Unknown None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Buffalo, NY Erie Co. United States	Tifft St. / Rte 5 NB Ramps (42.83952, -78.85611)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.4029	Freeway Ramps (Grade-Separated) Single-Lane	2010	ICD estimated from Google Maps linework.
Nakhodka, Primorye Nakhodka Russia	Obkhodnaya magistral' (42.83658, 132.87868)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x2 max)
Fulton, WI Rock Co. United States	STH 59 / I-39 SB Ramps (42.83635, -89.02979)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.4238	Freeway Ramps (Grade-Separated) Single-Lane	2016	ICD estimated from Google Maps linework.
Fulton, WI Rock Co. United States	STH 59 / I-39 NB Ramps (42.83577, -89.02705)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.5420	Freeway Ramps (Grade-Separated) Single-Lane	2016	ICD estimated from Google Maps linework.
Fulton, WI Rock Co. United States	STH 59 / E Richardson Springs Rd. / N Goede Rd. (42.83490, -89.02549)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.3008	Other (At-Grade) Single-Lane	2016	Previously had I-39 NB Ramps attached; these have been relocated to new roundabout to the west of this roundabout. ICD estimated from Google Maps linework.
Merrimac, MA Essex Co. United States	Main St (Rte 110) / Church St / School St (42.83371, -71.00250)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2015	aka Merrimac Square, off-street parking used on two quadrants
Lackawanna, NY Erie Co. United States	McKinley Pkwy. / Dorrance Ave. / Vincent Ave. (42.83200, -78.81520)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 30.6551	Other (At-Grade) Single-Lane	2010	Restriped as single-lane roundabout. ICD estimated from Google Maps linework.
Lackawanna, NY Erie Co. United States	Dorrance Ave. / S. Shore Blvd. / Ward Ct. (42.83199, -78.80859)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0345	Other (At-Grade) Single-Lane	2010	Restriped as single-lane roundabout. ICD estimated from Google Maps linework.
Newburyport, MA Essex Co. United States	Spofford St. / Merrimac St. / Moseley Ave. (42.83148, -70.90667)	Roundabout Existing	Other Unknown	4 Approaches 2 Driveways 30.4800	Other (At-Grade) Single-Lane	2013	Stop control at the crosswalk and painted splitter island on the western driveway leg. Year Completed estimated (2013-2014). ICD estimated from Google Maps linework.
Whitewater, WI Walworth Co. United States	BUS 12-STH 59 (E Milwaukee St.-Elkhorn Rd.) / Bluff Rd. / Clay St. (42.83102, -88.71045)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.2833	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Opened October 2007. ICD estimated from Google Maps linework.
Casper, WY Natrona Co. United States	Centennial Hills Blvd. / Waterford St. (42.83014, -106.26682)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2006). South leg added 2009-2012.
Casper, WY Natrona Co. United States	Rustic Dr. / Rustic Ct. / Rustic Pl. (42.82970, -106.28379)	Other Existing	Unknown Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Norway, WI Racine Co. United States	Racine Ave. / Oakridge Dr. / S Loomis Rd. (42.82942, -88.15896)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.5395	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Casper, WY Natrona Co. United States	Jasper Dr. / Preserve Cir. (42.82867, -106.28915)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands on three legs.
Hopkins-Tifft, NY Erie Co. United States	Botanical Dr. / McKinley Pkwy. (42.82812, -78.82460)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Niskayuna, NY Schenectady Co. United States	Research Circle (River Rd. / Elm Ave. / Van Antwerp Rd.) (42.82561, -73.87882)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)
Nakhodka, Primorye Nakhodka Russia	Nakhodkinskiy prospekt / Shkol'naya ulitsa (42.82415, 132.89282)	Other Removed	Other Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x1 max)
Buffalo, NY Erie Co. United States	Norfred Dr. (42.82391, -78.80598)	Other Existing	Unknown Unknown	2 Approaches 8 Driveways 0.0000	Other (At-Grade) Unknown
Schenectady, NY Schenectady Co. United States	Erie Blvd. / Nott St. / Rush St. (42.82162, -73.93570)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	Year Completed estimated (2015-2016).
Nakhodka, Primorye Nakhodka Russia	Nakhodkinskiy prospekt / Proganichnaya ulitsa (42.82123, 132.88740)	Other Existing	Other Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x1 max)
Merrimack, NH Hillsborough Co. United States	Spartan Way / Digital Dr. (42.82118, -71.50855)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 46.4288	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	On campus of Fidelity Investments. ICD estimated from Google Maps linework.
Merrimack, NH Hillsborough Co. United States	Spartan Way / Spartan Ln. (42.81991, -71.51026)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 48.1818	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	On campus of Fidelity Investments. ICD estimated from Google Maps linework.
China, MI St. Clair Co. United States	Fred W Moore Hwy. / Wadhams Rd. (42.81537, -82.55479)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	Year Completed estimated (2019-2022).
Holland, MI Ottawa Co. United States	Westshore Mall / (parking) (42.81319, -86.08626)	Other Existing	Unknown None	3 Approaches 0 Driveways 26.8221	Other (At-Grade) Single-Lane	2021	Entrance to The Shops at Westshore shopping mall
Zeeland, MI Ottawa Co. United States	W Main Ave. / Washington Ave. (42.81237, -86.03303)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.5501	Other (At-Grade) Single-Lane	2019	https://www.hollandsentinel.com/news/20191123/zeeland-roundabout-now-open ICD estimated from Google Maps linework.
Byron Center, MI Kent Co. United States	84th St. SE / Kalamazoo Ave. SE (42.81191, -85.62478)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://www.mlive.com/news/grand-rapids/2023/08/roundabout-the-first-of-its-kind-in-kent-county-opens-ahead-of-schedule.html
Gaines Township, MI Kent Co. United States	84th St. SE / Kalamazoo Ave. SE (42.81188, -85.62476)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://www.mlive.com/news/grand-rapids/2023/08/roundabout-the-first-of-its-kind-in-kent-county-opens-ahead-of-schedule.html.
Fenton, MI Genesee Co. United States	North Rd. / Torrey Rd. / (gas station access) (42.80472, -83.72443)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.6687	Other (At-Grade) Single-Lane	2019	100-ft inscribed circle diameter. Opened November 2019. https://www.thelascopress.com/2019/11/fentons-first-roundabout-is-open-for-business/ . ICD estimated from Google Maps linework.
Geneseo, NY Livingston Co. United States	Genesee St. / Court St. (42.80354, -77.82737)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://13wham.com/news/local/new-bridge-roundabout-in-geneseo-now-open-to-traffic
St Thomas, ON Elgin Canada	Burwell Rd. / Ponsford Pl. (42.80168, -81.16236)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2020	https://www.stthomas.ca/news/archived_news/burwell_road__ponsford_place_roundabout
Newburyport, MA Essex Co. United States	Newburyport Turnpike (US 1) / State St (42.79893, -70.87539)	Rotary Existing	All-Way Yield None	3 Approaches 5 Driveways 74.4880	Other (At-Grade) Multilane (2 Lane, unspecified)		No Ped facilities ICD estimated from Google Maps linework.
Niskayuna, NY Schenectady Co. United States	Rosendale Rd. / River Rd. (42.79650, -73.85496)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.0144	Other (At-Grade) Single-Lane	2020
Independence, MI Oakland Co. United States	Sashabaw Rd. / Oak Hill Rd. (42.79422, -83.37240)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2021	West leg is unpaved away from roundabout.
Hamburg, NY Erie Co. United States	Rte 179 / Gateway Blvd. / Rte 5 (Lake Shore Rd.) Ramps (42.79021, -78.84711)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 128.8386	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		Lane change required to go further than the next exit. ICD estimated from Google Maps linework.
Orion Township, MI Oakland Co. United States	Baldwin Rd. / Indianwood Rd. / Coats Rd. (42.78413, -83.31979)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.0862	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	ICD estimated from Google Maps linework.
Orion, MI Oakland Co. United States	E Flint St. / Orion Rd. / Miller Rd. (42.78398, -83.23184)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-lane w/ Traversable Central Island	2018
St Thomas, ON Elgin Canada	Sunset Dr. / Talbot Hill / Wellington Rd. (42.78327, -81.21434)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 47.3338	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	Sculpture of a train in central island. ICD estimated from Google Maps linework.
Vermillion, SD Clay Co. United States	Rockwell Trl. / Joplin St. (42.78285, -96.95270)	Other Existing	Unknown None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2014	No splitter islands. Year Completed estimated (2013-2015).
Nakhodka, Primorye Nakhodka Russia	ulitsa Pirogova / Sportivnaya ulitsa (42.77908, 132.85609)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Cohoes, NY Albany Co. United States	Preston Dr. / Stacey Ct. (42.77582, -73.74557)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2015).
St Thomas, ON Elgin Canada	Wellington St. / Manor Rd. (42.77450, -81.15594)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2016
Hamburg, NY Erie Co. United States	US 62 (S. Park Ave.) / Big Tree Rd. (42.77190, -78.82391)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.3151	Other (At-Grade) Single-Lane	2011	Fatal crash Oct 28, 2011. 11861-05. ICD estimated from Google Maps linework.
Salem, NH Rockingham Co. United States	Tuscan Blvd. / Artisan Dr. (42.77110, -71.22775)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1960	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2020	In a mixed-use development called Tuscan Village.
Salem, NH Rockingham Co. United States	Via Toscana / S Village Dr. (42.77099, -71.22354)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2020	In a mixed-use development called Tuscan Village.
Salem, NH Rockingham Co. United States	Tuscan Blvd. / (unknown) (42.77007, -71.22693)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.1960	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2020	In a mixed-use development called Tuscan Village.