Roundabouts Database Index

29616 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
Albany, NY Albany Co. United States	Fuller Rd. (CR 156) / I-90 WB Ramps (42.69511, -73.82928)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.6231	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Year Completed estimated (2011-2013). Functional Class: Arterial ICD estimated from Google Maps linework.
Rochester Hills, MI Oakland Co. United States	W Tienken Rd. / N Livernois Rd. (42.69527, -83.15397)	Roundabout Existing	All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)	4 Approaches 0 Driveways 46.5232	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	ICD estimated from Google Maps linework.
Rochester Hills, MI Oakland Co. United States	Tienken Rd. / Sheldon Rd. (42.69626, -83.12320)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.6224	Other (At-Grade) Single-Lane	2001	Near Hart Middle School and Stoney Creek High School. Functional Class: Local ICD estimated from Google Maps linework.
Meridian Township, MI Ingham Co. United States	Hulett Rd. / Bennett Rd. (42.69739, -84.44709)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.9884	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Rochester, MI Oakland Co. United States	Tienken Rd. / Runyon Rd. / Washington Rd. (42.69743, -83.11135)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.0105	Other (At-Grade) Single-Lane	1999	Total cost: $353,000. Completed July 1999. Functional Class: Arterial ICD estimated from Google Maps linework.
Macomb, MI Macomb Co. United States	25 Mile Rd. / Romeo Plank Rd. / Garfield Rd. (42.70077, -82.95901)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2022	Year Completed estimated (2021-2022).
Macomb, MI Macomb Co. United States	25 Mile Rd. / Hayes Rd. (42.70090, -82.97623)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.4973	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Macomb, MI Macomb Co. United States	25 Mile Rd E / Romeo Plank Rd. (42.70099, -82.95338)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 31.5978	Other (At-Grade) Single-Lane	2016	Right-turn only lane on south leg. ICD estimated from Google Maps linework.
Lawrence, MA Essex Co. United States	Margin St. / Medford St. / Melrose St. / Hancock St. / Bodwell St. (42.70103, -71.17348)	Other Existing	All-Way Stop Unknown	5 Approaches 0 Driveways 21.9429	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Lansing, MI Ingham Co. United States	Forest Rd. / Collins Rd. (42.70389, -84.49795)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2021
Yorkville, WI Racine Co. United States	US 45 (S Colony Ave.) / Spring St. (42.70407, -88.05189)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.6176	Other (At-Grade) Single-Lane	2017	Elliptical shape. ICD estimated from Google Maps linework.
Lawrence, MA Essex Co. United States	170 May St (42.71218, -71.18037)	Traffic Calming Circle Existing	Other Unknown	5 Approaches 0 Driveways 18.4287	Other (At-Grade) Single-Lane		No splitter islands. Mix of stop and yield control. ICD estimated from Google Maps linework.
Mount Pleasant, WI Racine Co. United States	16th St. / Emmertsen Rd. (42.71282, -87.85553)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2019
Colonie, NY Albany Co. United States	Sand Creek Rd. / Colonie Ct. (42.71318, -73.80853)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.3670	Other (At-Grade) Single-Lane	2008	4 legs, one for planned future road. Completion year of 2008 is approximate. Functional Class: Minor Arterial ICD estimated from Google Maps linework.
Lyulin, Sofia City Sofia Bulgaria	SR 18 (Sofia Ring Road) / SR 189 / A3-E79 Ramps / (connector to bulevard D-r Petar Dertliev) (42.71319, 23.23032)	Rotary Existing	All-Way Yield None	5 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Lansing, MI Ingham Co. United States	Harding Ave. / Pershing Ave. (42.71364, -84.53384)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.1015	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Williamstown, MA Berkshire Co. United States	Main St (Rte 2) / North St (US 7) / Cold Spring Rd (US7 / Rte 2) / South St (42.71367, -73.21032)	Other Existing	All-Way Yield None	5 Approaches 3 Driveways 21.9384	Other (At-Grade) Single-Lane		Historic elliptical town common ICD estimated from Google Maps linework.
Utica, MI Macomb Co. United States	26 Mile Rd. / M-53 SB Ramps (42.71388, -83.02834)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 44.7542	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2009	ICD estimated from Google Maps linework.
Utica, MI Macomb Co. United States	26 Mile Rd. / M-53 NB Ramps (42.71396, -83.02374)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 42.9991	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2009	Replaced back-to-back loop ramps on northbound M-53. ICD estimated from Google Maps linework.
South Wales, NY Erie Co. United States	Rte 16-Rte 400 / Rte 16 (Olean Rd.) / Richardson Rd. (42.71467, -78.58067)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://wellsvillesun.com/blog/2022/04/06/major-project-on-route-400-in-erie-county-announced/
Lansing, MI Ingham Co. United States	Barnes Ave. / Coleman Ave. (42.71488, -84.55390)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 20.1829	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Lansing, MI Ingham Co. United States	Barnes Ave. / Davis Ave. (42.71489, -84.55698)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 18.4279	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Lansing, MI Ingham Co. United States	Barnes Ave. / Beal Ave. (42.71491, -84.56174)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 15.7953	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Orion Township, MI Oakland Co. United States	S Baldwin Rd. / Judah Rd. (42.71519, -83.30749)	Roundabout Existing	All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)	3 Approaches 0 Driveways 38.6106	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	ICD estimated from Google Maps linework.
Hamburg, NY Erie Co. United States	US 62 (E Main St.) / Buffalo St. (42.71581, -78.82941)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 33.3452	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Lansing, MI Ingham Co. United States	Beal Ave. / Sparrow Ave. (42.71602, -84.56174)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 8.7750	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Janesville, WI Rock Co. United States	Sandhill Dr. / Sandstone Dr. (42.71610, -88.95860)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.0801	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Hamburg, NY Erie Co. United States	US 62 (E Main St.) / Center St. (42.71622, -78.83438)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 23.6925	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Okemos, MI Ingham Co. United States	Hamilton Rd. / Marsh Rd. (42.71625, -84.42687)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.8350	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Racine, WI Racine Co. United States	Valley Dr. / 13th St. / Bluefields Dr. (42.71663, -87.80302)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 64.0080	Other (At-Grade) Single-Lane	2007	Elliptical shaped. ICD = 210 ft x 140 ft. Replaced triangular intersection.
Lansing, MI Ingham Co. United States	Moores River Dr. / Boston Blvd. / Pattengill Ave. (42.71923, -84.57225)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 15.7942	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Colonie, NY Albany Co. United States	Winners Cir. / Marcus Blvd. / (parking) (42.72115, -73.79651)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2015).
Orion Township, MI Oakland Co. United States	S Baldwin Rd. / Gregory Rd. (42.72153, -83.30757)	Roundabout Existing	All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)	4 Approaches 0 Driveways 41.2390	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	ICD estimated from Google Maps linework.
Hamburg, NY Erie Co. United States	US 62 (Buffalo St.) / Prospect Ave. (42.72197, -78.82588)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 28.9548	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
East Lansing, MI Ingham Co. United States	Wilson Rd. / Red Cedar Rd. (42.72324, -84.48238)	Other Removed	Unknown Unknown	4 Approaches 0 Driveways 23.6898	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
East Lansing, MI Ingham Co. United States	Bogue St. / Wilson Rd. (42.72326, -84.47186)	Other Removed	Unknown Unknown	4 Approaches 0 Driveways 36.8508	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Janesville, WI Rock Co. United States	Morse St. / Menards Access (42.72334, -88.99679)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.3412	Other (At-Grade) Single-Lane	2007	Functional Class: Local ICD estimated from Google Maps linework.
Colonie, NY Albany Co. United States	Albany Shaker Rd. / Maxwell Rd. (42.72396, -73.79143)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.7278	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	Intersection is being relocated to east. Addition of a fourth leg is planned. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Orion, MI Oakland Co. United States	Baldwin Rd. / (parking) (42.72527, -83.30757)	Roundabout Existing	All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	West leg is for athletic club; east leg is for a small strip mall. A fountain is featured in the circle.
East Lansing, MI Ingham Co. United States	Bogue St. / Shaw Ln. (42.72575, -84.47185)	Roundabout Removed	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	Roundabout built in 2000, removal date estimated (2013-2015).
Hamburg, NY Erie Co. United States	US 62 (Buffalo St.) / Legion St. / Clark St. (42.72590, -78.82574)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 42.1134	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Racine, WI Racine Co. United States	6th St. / 7th St. / Washington Ave. (42.72602, -87.78892)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 35.0945	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Platteville, WI Grant Co. United States	Chestnut St. / Markee Ave. (42.72607, -90.48517)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.6039	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Waverly, IA Bremer Co. United States	1st Ave. NW / 8th St. NW (42.72669, -92.48061)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.2167	Other (At-Grade) Single-Lane	2005	Replaced "T" intersection at entry to Wartburg College school campus. ICD estimated from Google Maps linework.
Watervliet, NY Albany Co. United States	Sutherland Dr. / Beacon Dr. / Mahogany Dr. (42.72840, -73.72327)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.4611	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Orion, MI Oakland Co. United States	Baldwin Rd. / Maybee Rd. (42.72884, -83.30775)	Roundabout Existing	All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	Yield-controlled right-turn bypass lane on east leg. West leg enters into a residential subdivision local road.
Yorkville, WI Racine Co. United States	Washington Ave. / Spring St. (42.72909, -87.96664)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 47.3752	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	ICD estimated from Google Maps linework.
Pelham, NH Hillsborough Co. United States	NH 111A (Marsh Rd.) / Acorn Ln. / Village Green (42.73178, -71.32437)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 58.7778	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Racine, WI Racine Co. United States	State St. / Spring St. / West St. (42.73298, -87.80201)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.5996	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Watervliet, NY Albany Co. United States	Billys Way / Beryl Way (42.73320, -73.72641)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 50.0038	Other (At-Grade) Unknown	2005	ICD estimated from Google Maps linework.
Lansing, MI Ingham Co. United States	Michigan Ave. / Washington Square (42.73360, -84.55225)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.3176	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Pelham, NH Hillsborough Co. United States	NH 111A / Nashua Rd. (42.73399, -71.32318)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 42.1079	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Washington, MI Macomb Co. United States	Van Dyke Ave. / Campground Rd. (42.73402, -83.03617)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2024	https://www.youtube.com/watch?v=tFHwV5OfDwc
Independence, MI Oakland Co. United States	Clintonville Rd. / Waldon Rd. (42.73447, -83.34991)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2024	https://www.youtube.com/watch?v=7dLM3y1e23U
Orion, MI Oakland Co. United States	Baldwin Rd. / Waldon Rd. (42.73619, -83.30805)	Roundabout Existing	All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, unspecified)	2020
Racine, WI Racine Co. United States	Northwestern Ave. / Albert St. / W High St. (42.73721, -87.80717)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 37.7197	Other (At-Grade) Single-Lane	2016	Replaced two offset T-intersections. ICD estimated from Google Maps linework.
Nashua, NH Hillsborough Co. United States	Main St. / Daniel Webster Hwy (42.73881, -71.45826)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.4557	Other (At-Grade) Single-Lane	2003	Located near Rivier College, 1/4 mile north of Exit 3 of the Everett Turnpike. ICD estimated from Google Maps linework.
Latham, NY Albany Co. United States	Old Wolf Rd. / Old Niskayuna Rd. (42.73882, -73.79072)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.8241	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Oakland Township, MI Oakland Co. United States	Adams Rd. / Gunn Rd. (42.73932, -83.19683)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019
Independence, MI Oakland Co. United States	Knob Hill Circle (42.73975, -83.37107)	Unknown Existing	Unknown Unknown	3 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-Lane
Platteville, WI Grant Co. United States	N Water St. / E Madison St. (42.74037, -90.46891)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.3320	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Vrabnitsa, Sofia City Sofia Bulgaria	bulevard Lomsko shose / ulitsa Ostrov (42.74044, 23.28740)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Metro station above roundabout.
Meridian Township, MI Ingham Co. United States	Park Lake Rd. / Burcham Dr. (42.74077, -84.44757)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.8232	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2013). ICD estimated from Google Maps linework.
Kansasville, WI Racine Co. United States	STH 20 / STH 75 / CTH S (42.74191, -88.11098)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.7169	Other (At-Grade) Single-Lane	2014	Rural, high-speed approaches. ICD estimated from Google Maps linework.
Dover, WI Racine Co. United States	US 45 (N Raynor Ave. / Washington Ave.) / STH 20 (Washington Ave.) / N Raynor Ave. (42.74204, -88.07155)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Single-Lane	2023	https://racinecountyeye.com/2023/05/03/highway-20-resurfacing-project/
Yorkville, WI Racine Co. United States	US 45 / STH 20 (Washington Ave.) / N Colony Ave. (42.74216, -88.05209)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.8396	Other (At-Grade) Single-Lane	2010	Opened November 2010. ICD estimated from Google Maps linework.
Grand Ledge, MI Eaton Co. United States	M-43 (E Grand Ledge Hwy.) / (school access road) (42.74365, -84.75917)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://www.fox47news.com/neighborhoods/delta-township-grand-ledge/grand-ledge-public-schools-roundabout-project-on-m-43-is-complete
Latham, NY Albany Co. United States	Latham Circle: Rte 2 / Rte 9 (42.74810, -73.76098)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 76.2000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2002
St Thomas, ON Elgin Canada	Southdale Line / Fairview Rd. (42.74922, -81.16651)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2021	https://www.facebook.com/cityofstthomas/photos/a.3739568726131579/3992567457498370
St Thomas, ON Elgin Canada	Southdale Line / Lake Margaret Trl. (42.74945, -81.17914)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.8515	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Janesville, WI Rock Co. United States	N Harmony Town Hall Rd. / STH 26 NB Ramps (42.75114, -88.95416)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2012	Interchange replaced single at-grade two-way stop-controlled intersection.
Hamburg, NY Erie Co. United States	US 62 (S Park Ave.) / Sowles Rd. (42.75150, -78.82474)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.8340	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
St Thomas, ON Elgin Canada	Southgate Pkwy. / Fairview Ave. (42.75327, -81.16695)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2021	https://london.ctvnews.ca/the-most-famous-st-thomas-ont-native-you-ve-likely-never-heard-of-1.5629790
St Thomas, ON Elgin Canada	Southgagte Pkwy. / Carolina Crescent / Peach Tree Blvd. (42.75327, -81.15804)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.0000	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2009-2013).
Janesville, WI Rock Co. United States	N Harmony Town Hall Rd. / STH 26 SB Ramps (42.75331, -88.95426)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2012	Interchange replaced single at-grade two-way stop-controlled intersection.
St Thomas, ON Elgin Canada	Southgate Pkwy. / Penhale Ave. (42.75348, -81.16312)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.0000	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2001-2006).
Guilderland, NY Albany Co. United States	Rte 146 (Carman Rd.) / Lydius St. (42.75479, -73.94366)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2022	Skewed intersection. https://www.timesunion.com/news/article/Guilderland-roundabout-work-to-start-Sept-6-17410914.php
Delta Township, MI Eaton Co. United States	Willow Hwy. / Canal Rd. (42.75553, -84.66173)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 33.3239	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Nashua, NH Hillsborough Co. United States	SR 130 (Broad St.) / Coburn Ave. / Chuck Drudging Dr. (42.75617, -71.51653)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.0619	Other (At-Grade) Single-Lane	2002	Entrance to north high school, very heavy traffic in AM peak. ICD estimated from Google Maps linework.
Caledonia, WI Racine Co. United States	STH 38 / CTH K (Northwestern Ave.) (42.75957, -87.86417)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.9524	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Opened November 2007. Right-turn bypass lane. ICD estimated from Google Maps linework.
Rotterdam, NY Schenectady Co. United States	Rte 146 (Carman Rd.) / I-890 SB Ramps (42.76055, -73.94206)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Freeway Ramps (Grade-Separated) Single-Lane	2022	Merging right-turn bypass lane on south leg. https://www.news10.com/news/albany-county/road-work-begins-to-upgrade-route-146-intersections/
Lansing Township, MI Ingham Co. United States	Lake Lansing Rd. / Chamberlain Dr. (42.76086, -84.52982)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 56.9966	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	ICD estimated from Google Maps linework.
Lansing Township, MI Ingham Co. United States	Wood St. / Sams Way (42.76276, -84.52303)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.5810	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Schenectady, NY Schenectady Co. United States	Curry Rd. / Carman Rd. / Hamburg St. (42.76513, -73.93874)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.2100	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Independence, MI Oakland Co. United States	S Baldwin Rd, / Clarkston Rd. / W Clarkston Rd. (42.76543, -83.31409)	Roundabout Existing	All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2024	Elliptical shaped. Opened August 2024. https://www.rcocweb.org/675/Baldwin-RoadClarkston-Road-Roundabout-Op
Colonie, NY Albany Co. United States	Johnson Rd. / Boght Rd. / St. Agnes Hwy (42.76550, -73.73207)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.6881	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
East Aurora, NY Erie Co. United States	Rte 20A / Rte 78 (42.76773, -78.62917)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 38.1000	Other (At-Grade) Single-Lane	2009	Converted from rotary.
Milton, WI Rock Co. United States	STH 59 / CTH M (42.76886, -88.91364)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.5632	Other (At-Grade) Single-Lane	2009	Opened October 2009. ICD estimated from Google Maps linework.
Milton, WI Rock Co. United States	STH 59 / STH 26 NB Ramps (42.76902, -88.92310)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2009	Opened October 2009.
Salem, NH Rockingham Co. United States	Tuscan Blvd. / S Village Dr. (42.76904, -71.22519)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1960	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2020	In a mixed-use development called Tuscan Village.
Milton, WI Rock Co. United States	STH 59 / STH 26 SB Ramps (42.76911, -88.92484)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2009	Opened October 2009.
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.
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. / 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.
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.
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
Orion Township, MI Oakland Co. United States	Orion Rd. / Stoney Creek Rd. (42.77560, -83.22117)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://www.youtube.com/watch?v=SCHUqTp-aNI
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).
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
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).