Roundabouts Database Index

29679 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
Ayer, MA Middlesex Co. United States	Main St. (Rte 2A, Rte 111) / Sandy Pond Rd. / Littleton Rd. (Rte 2A, Rte 110) / Harvard Rd. (Rte 110, Rte 111) / Barnum Rd (42.55279, -71.57239)	Rotary Existing	Other None	5 Approaches 0 Driveways 118.7740	Other (At-Grade) Single-Lane		All-Yield Control expect for Barnum Rd (Stop-controlled) ICD estimated from Google Maps linework.
Concord, NH Merrimack Co. United States	Manor Rd. / Abbott Rd. (43.26422, -71.57349)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2018	https://www.nh.gov/dot/org/projectdevelopment/highwaydesign/roundabouts/documents/nh_roundabouts_list_details_web_version.pdf
Lancaster, NH Coos Co. United States	US 2 (Main St.) / US 3 (44.49690, -71.57632)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.9279	Other (At-Grade) Single-Lane	2016	https://www.nh.gov/dot/org/projectdevelopment/highwaydesign/roundabouts/documents/nh_roundabouts_list_details_web_version.pdf ICD estimated from Google Maps linework.
Concord, NH Merrimack Co. United States	Whitney Rd. / Merchants Way (43.28791, -71.58083)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.concordmonitor.com/Exit-17-rotary-landscaped-by-local-nursery-City-Council-accepts-donations-for-project-48392448
Concord, NH Merrimack Co. United States	US 4 (Old Boyce Rd.) / Whitney Rd. / Hoit Rd. (43.28906, -71.58169)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2022	https://www.concordmonitor.com/A-Canterbury-homeowner-enjoys-the-storm-before-the-calm-47736538
Goffstown, NH Hillsborough Co. United States	NH 114 (S. Mast St.) / Wallace Rd. (43.01441, -71.58619)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 24.4516	Other (At-Grade) Single-Lane	2010	External truck apron in SE quadrant. ICD estimated from Google Maps linework.
Pepperell, MA Middlesex Co. United States	Main St. / River Rd. / Hollis St. (42.66638, -71.58831)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.6410	Other (At-Grade) Single-Lane		Pedestrian access to central island. ICD estimated from Google Maps linework.
Boscawen, NH Merrimack Co. United States	US 4 (King St.) / Tremont St. (43.29130, -71.59523)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2011	Merging right-turn bypass lane on south leg.
Concord, NH Merrimack Co. United States	US 3 (Village St.) / Washington St. (43.28008, -71.59997)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 25.2150	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Westborough, MA Worcester Co. United States	E Main St. / Milk St. / South St. / Brigham St. (42.26951, -71.61304)	Other Existing	Other Unknown	5 Approaches 0 Driveways 39.7706	Other (At-Grade) Multilane (2 Lane, unspecified)		Mix of stop and yield control, parking along circulatory roadway, pedestrian access to central island. ICD estimated from Google Maps linework.
Alma, QC Lac-Saint-Jean-Est Regional County Municipality Canada	Rte 172 / Rte 169 (48.60369, -71.61456)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2021	Year Completed estimated (2019-2021).
Berlin, MA Worcester Co. United States	River Rd W / Basset Rd (42.35534, -71.62343)	Roundabout Existing	All-Way Yield Other	4 Approaches 0 Driveways 32.6557	Other (At-Grade) Single-Lane	2016	X-W11-2 installed on all approaches splitter islands with crosswalks (high vis ladders) new sidewalks around the roundabout. context in development, more mixed-use seems to be planned for the future ICD estimated from Google Maps linework.
Berlin, MA Worcester Co. United States	River Rd W / South St / Whitney Rd (42.35764, -71.62354)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 60.0136	Other (At-Grade) Single-Lane		New pavement markings (shark teeth and definition of circular roadway) in 2016 ICD estimated from Google Maps linework.
Alma, QC Lac-Saint-Jean-Est Regional County Municipality Canada	Rte 169 / Avenue du Pont N / Chemin de la Grand Décharge (48.57749, -71.62818)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	https://www.lequotidien.com/actualites/enfin-le-grand-jour-pour-la-nouvelle-voie-de-contournement-a-alma-e60502acec48e0c3c82a6a4ea0f74ca1
Richmond, RI Washington Co. United States	SR 138 (Kingstown Rd.) / SR 112 (Richmond Townhouse Rd.) / Carolina Nooseneck Rd. (41.50041, -71.65955)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2024	https://www.turnto10.com/news/local/ridot-completes-richmond-roundabout-project-southern-new-england-rhode-island-massachusetts-november-26-2024
Glocester, RI Providence Co. United States	Putnam Pike (US 44) / RI-102 (41.91536, -71.67162)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 25.7734	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Plymouth, NH Grafton Co. United States	US 3 / Bridge St. (NH 175A) / High St. (43.76001, -71.68737)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.3282	Other (At-Grade) Single-Lane	2007	Adjacent to at-grade railroad crossing. ICD estimated from Google Maps linework.
Lancaster, MA Worcester Co. United States	Lunenburg Rd. / Old Union Turnpike (42.51839, -71.69255)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.9723	Other (At-Grade) Single-Lane	2013	Year estimated between 2010 and 2015. ICD estimated from Google Maps linework.
Coventry, RI Kent Co. United States	Victoria Hwy (Rte 102) / Flat River Rd. (Rte 117) (41.69308, -71.69349)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 33.8894	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Sterling, MA Worcester Co. United States	Leominster Rd. (Rte 12) / I-190 SB Ramps (42.46038, -71.74610)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	3 Approaches 0 Driveways 41.4121	Freeway Ramps (Grade-Separated) Single-Lane	2018	RRFB ICD estimated from Google Maps linework.
Sterling, MA Worcester Co. United States	Leominster Rd. (Rte 12) / Chocksett Rd. (42.45284, -71.74849)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.7735	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Worcester, MA Worcester Co. United States	Lake Ave. / S Rd. (42.27715, -71.75925)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 38.8821	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Crosswalks on all approaches. Year Completed estimated (2010-2014). ICD estimated from Google Maps linework.
Millbury, MA Worcester Co. United States	Elm St / Elm Ct / Rte 146 Ramps (42.18783, -71.76618)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.2384	Freeway Ramps (Grade-Separated) Single-lane w/ Traversable Central Island	2018	ICD estimated from Google Maps linework.
North Lincoln Street, MA Worcester Co. United States	Lincoln St. (Rte 70) / Boylston St. (Rte 70) / Benson Ave. (42.29801, -71.76636)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.7526	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Millbury, MA Worcester Co. United States	Main St / Elmwood St / Elm St / Faron Cir / Rte 146 Ramps (42.18731, -71.76704)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 33.6278	Freeway Ramps (Grade-Separated) Single-Lane	2018	ICD estimated from Google Maps linework.
Union Hill, MA Worcester Co. United States	Grafton St (Rte 122) / Hamilton St / Orient St (42.25577, -71.78528)	Traffic Calming Circle Existing	Other None	4 Approaches 2 Driveways 24.7515	Other (At-Grade) Single-Lane		Control Type: Grafton EB free flow, Grafton WB and Hamilton yield controlled, Orient St is stop controlled. Grafton St is Major road in terms of control type. On-street parking on the circular roadway. Wide lanes, limited pavement markings. Crosswalks present. Downtown and residential context. ICD estimated from Google Maps linework.
Saint-Gédéon, QC Lac-St-Jean-Est Canada	Rte 170 / Rang de la Belle-Rivière / Rue de Quen (48.47879, -71.79000)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.7941	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2008-2010). ICD estimated from Google Maps linework.
Worcester, MA Worcester Co. United States	Washington Sq (Front St. / Summer St.) (42.26201, -71.79451)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.0337	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Rotary Retrofit completed in 2007 or 2008. ICD estimated from Google Maps linework.
Green Island, MA Worcester Co. United States	Kelley Square [Vernon St. / Water St. / Madison St. / Harding St.] (42.25509, -71.79785)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2021	Peanut shaped. https://www.wbjournal.com/article/data-shows-fewer-kelley-square-crashes-since-peanut-redesign
Fitchburg, MA Worcester Co. United States	Rindge Rd. / John Fitch Hwy / Mechanic St. (Rte 31) / Ashby State Rd. (Rte 31) (42.60170, -71.80156)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.8900	Other (At-Grade) Single-Lane	2010	RTYL ICD estimated from Google Maps linework.
Worcester, MA Worcester Co. United States	Arwick Ave. / Millbury St. / Olde Millbury St. (42.24747, -71.80182)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	https://spectrumnews1.com/ma/worcester/news/2020/07/25/mini-roundabout-worcester
Fitchburg, MA Worcester Co. United States	Main St. / River St. (42.58718, -71.80861)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 13.1898	Other (At-Grade) Single-lane w/ Traversable Central Island	2017	https://www.sentinelandenterprise.com/2017/05/22/roundabout-at-main-and-river-in-fitchburg-could-see-revisions/ ICD estimated from Google Maps linework.
Fitchburg, MA Worcester Co. United States	Electric Ave. / Rollstone Rd. / Rollstone St. (42.56713, -71.81346)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 17.5921	Other (At-Grade) Single-lane w/ Traversable Central Island	2017	https://www.sentinelandenterprise.com/2017/04/29/work-on-roundabout-at-rollstone-road-and-electric-ave-in-fitchburg-begins-monday-will-require-detour/ ICD estimated from Google Maps linework.
Fitchburg, MA Worcester Co. United States	River St (Rte 2A, 31) / Kimball St (Rte 12) / Daniels St (42.58252, -71.81891)	Traffic Calming Circle Existing	Other Unknown	4 Approaches 2 Driveways 32.5374	Other (At-Grade) Single-Lane		Control Type; All way Yield, except for Daniel St. A crosswalk over River St is missing. River St WB has a large median, no crosswalk utilizing it. Industrial mixed-use context. ICD estimated from Google Maps linework.
Sherbrooke, QC Sherbrooke Canada	Route 112 / Autoroute 610 (45.42954, -71.82424)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 56.9951	Freeway Ramps (Grade-Separated) Single-Lane	2011	Free-flowing right-turn bypass lanes on all legs. Year Completed estimated (2010-2012). ICD estimated from Google Maps linework.
Worcester, MA Worcester Co. United States	Highland St / June St / Pleasant St / Newton Ave (42.26980, -71.82529)	Traffic Calming Circle Existing	Other Unknown	5 Approaches 0 Driveways 31.8163	Other (At-Grade) Single-Lane		Control type: 2 way stop, 3 way yield. remarkable: stop bar June St on circular roadway, after CW. Geometry is wide enough for two lanes although 4 out of 5 exits are single lane. Crosswalks present. New pavement markings crosswalk in approx. 2015. Residential contexts. Traffic Circle next to large neighborhood park. Two bus lines with bus 5 bus stops within 100 ft of the traffic circle. ICD estimated from Google Maps linework.
Worcester, MA Worcester Co. United States	Lovell St / Marywood St / Englewood Ave / Ferdinand St (42.25439, -71.83255)	Traffic Calming Circle Existing	Other None	5 Approaches 0 Driveways 24.7521	Other (At-Grade) Single-Lane		Control Type: 2 yield Lovell St; Other 3 approaches stop controlled. Some pavement markings to define circular roadway (arrows, dotted lines) and create 'splitter islands' on the approaches from Englewood Ave, Ferdinand St; Lovell NB. Crosswalks present. Residential area; local shop and laundromat at the roundabout. ICD estimated from Google Maps linework.
Warner, NH Merrimack Co. United States	Rte 103 / (shopping center parking) / (service station) (43.28882, -71.83340)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.5582	Other (At-Grade) Single-Lane	2016	https://www.nh.gov/dot/org/projectdevelopment/highwaydesign/roundabouts/documents/nh_roundabouts_list_details_web_version.pdf ICD estimated from Google Maps linework.
Lennoxville, QC Sherbrooke Canada	Rte 108 (Rue College) / Chemin Glenday (45.36727, -71.83398)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 43.6325	Other (At-Grade) Single-Lane	2019	ICD estimated from Google Maps linework.
Lennoxville, QC Sherbrooke Canada	Rte 108 / Autoroute 410 WB Onramp (45.35581, -71.86037)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways 52.8732	Freeway Ramps (Grade-Separated) Single-Lane	2011	Future third approach (off-ramp) stubbed. ICD estimated from Google Maps linework.
North Stonington, CT New London Co. United States	Rte 2 / Rte 184 (41.42439, -71.86039)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 103.6320	Other (At-Grade) Single-Lane		Yield signs added 1999?
Lennoxville, QC Sherbrooke Canada	Rte 108 / Autoroute 410 EB Offramp (45.35401, -71.86207)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 52.8749	Freeway Ramps (Grade-Separated) Single-Lane	2011	Fourth leg (future on-ramp) stubbed. ICD estimated from Google Maps linework.
Waterville, QC Coaticook Regional County Municipality Canada	Route Gilbert-Hyatt (Rte 108-Rte 143) / Rte 147 (45.34374, -71.86662)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 43.6507	Other (At-Grade) Single-Lane	2011	Year Completed based on Streetview. ICD estimated from Google Maps linework.
Sherbrooke, QC Sherbrooke Canada	Rue James-Quintin / Rue Ida-Métivier / Rue Maximilien-Chagnon (45.44458, -71.86999)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 51.9523	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Year Completed estimated (2004-2009). ICD estimated from Google Maps linework.
Sherbrooke, QC Sherbrooke Canada	Rue James-Quintin / (unknown) / (parking lot) (45.44661, -71.87316)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2019).
Hatley Canton, QC Memphrémagog Regional County Municipality Canada	Rue Belvédère / Autoroute 410 EB Ramps (45.35780, -71.89470)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.4437	Freeway Ramps (Grade-Separated) Single-Lane	2014	Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Sherbrooke, QC Sherbrooke Canada	Rue Terrill / Rue des Grandes-Fourches N (45.40783, -71.89476)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2023	Previous control type was a grade-separated interchange. https://www.sherbrookerecord.com/new-grandes-fourches-bridge-opens-in-sherbrooke/
Hatley Canton, QC Memphrémagog Regional County Municipality Canada	Rue Belvédère / Autoroute 410 WB Ramps (45.36010, -71.89496)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.9597	Freeway Ramps (Grade-Separated) Single-Lane	2014	Year Completed estimated (2013-2015). 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.
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.
Wanchaq, Cusco Province of Cusco Peru	Calle República del Perú / Prolongacion Avenida Túpac Amaru (-13.52962, -71.94065)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Unknown		Parking along circulatory roadway.
Sherbrooke, QC Sherbrooke Canada	Rue Jean-de la Fontaine / Rue Émile-Zola (45.41384, -71.94202)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2004-2009).
Sherbrooke, QC Sherbrooke Canada	Chemin de Ste-Catherine (Rte 216) / Rue Labbé / Rue Felton (45.34917, -71.95487)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.2891	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2012-2013). ICD estimated from Google Maps linework.
Wanchaq, Cusco Province of Cusco Peru	Óvalo Libertadores (-13.53311, -71.95531)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
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.
Wanchaq, Cusco Province of Cusco Peru	Ovalo Garcilaso (-13.52104, -71.96746)	Other Existing	Other Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Stop control on circulatory roadway.
Wanchaq, Cusco Province of Cusco Peru	Ovalo de Pachacutec (-13.53178, -71.96825)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Sherbrooke, QC Sherbrooke Canada	Chemin de Ste-Catherine (Rte 216) / Chemin St-Roch (45.33304, -71.97867)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.3381	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2012-2013). ICD estimated from Google Maps linework.
Gardner, MA Worcester Co. United States	Rte 2 Ramps / Pearson Blvd (42.56420, -71.97920)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 137.2249	Freeway Ramps (Grade-Separated) Single-Lane		ICD estimated from Google Maps linework.
Sherbrooke, QC Sherbrooke Canada	Boulevard Industriel / Boulevard de Portland / Boulevard René-Lévesque (45.39569, -71.98464)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 54.5133	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	Grade-separated path for pedestrians and bicyclists: https://translate.google.com/translate?hl=en&sl=fr&u=https://www.ville.sherbrooke.qc.ca/salle-de-presse/actualites/dossiers-municipaux/prolongement-du-boulevard-de-portland/ Connected to Boulevard René-Lévesque in 2018: https://translate.google.com/translate?hl=en&sl=fr&u=https://www.ville.sherbrooke.qc.ca/salle-de-presse/actualites/dossiers-municipaux/construction-du-boulevard-rene-levesque ICD estimated from Google Maps linework.
Gardner, MA Worcester Co. United States	Timpany Blvd (Rte 68) / Rte 2 (42.56665, -71.99296)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 140.7379	Freeway Ramps (Grade-Separated) Single-Lane		Crosswalks present ICD estimated from Google Maps linework.
Sherbrooke, QC Sherbrooke Canada	Boulevard René-Lévesque / Rue Sainte Claire / Rue Magnelli (45.38799, -71.99469)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2018
Sherbrooke, QC Sherbrooke Canada	Boulevard René-Lévesque / Rue Matisse / Rue Luce-Dufresne (45.38324, -71.99812)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2018
Sherbrooke, QC Sherbrooke Canada	Rue Henri-Labonne / Boulevard René-Lévesque (45.37523, -71.99868)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 27.6860	Other (At-Grade) Single-Lane	2018	https://translate.google.com/translate?hl=en&sl=fr&u=https://www.ville.sherbrooke.qc.ca/salle-de-presse/actualites/dossiers-municipaux/construction-du-boulevard-rene-levesque/ shows 2 other roundabouts on Boulevard René-Lévesque. ICD estimated from Google Maps linework.
New London, NH Merrimack Co. United States	Newport Rd. / County Rd. (43.42280, -72.00003)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.4930	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Norwich, CT New London Co. United States	Main St. / Franklin St. (41.52462, -72.07476)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	Opened September 17, 2021. https://www.theday.com/article/20210917/NWS01/210919500
New London, CT New London Co. United States	Shaw St. / Pequot Ave. / Nameaug St. / Driveway to Pfizer (41.34204, -72.09873)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8671	Other (At-Grade) Single-Lane	2000	Functional Class: Collector ICD estimated from Google Maps linework.
New London, CT New London Co. United States	Shaw St. / Howard St. / Willets Ave. (41.34284, -72.09972)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.9700	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
New London, CT New London Co. United States	Lincoln Ave. / Colver St. (41.35554, -72.11288)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Newport, NH Sullivan Co. United States	Rte 10 / Rte 11 (43.36506, -72.17355)	Other Existing	Unknown Unknown	0 Approaches 0 Driveways 30.3894	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Athol, MA Worcester Co. United States	Market Rd. / Tower Rd. / Reservoir Dr. (42.58053, -72.18775)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2014	no crosswalks, commercial center
East Hampton, NY Suffolk Co. United States	East Hampton Sag Harbor Tpke (Hwy 114) / Toilsome Ln. (40.96028, -72.20192)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 19.8421	Other (At-Grade) Single-Lane	2018	Aug 2018 Streetview shows construction almost complete. ICD estimated from Google Maps linework.
Magog, QC Memphrémagog Regional County Municipality Canada	Rte 112 / Rte 10 EB Onramp / Chemin Milletta (45.29072, -72.20692)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 44.5318	Freeway Ramps (Grade-Separated) Single-Lane	2009	Year Completed estimated (2009-2010). ICD estimated from Google Maps linework.
Magog, QC Memphrémagog Regional County Municipality Canada	Rue Principale O (Rte 112) / Chemin du Mont Orford (Rte 141) / Rte 10 WB Onramp (45.29438, -72.20914)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 39.4879	Freeway Ramps (Grade-Separated) Single-Lane	2009	Year Completed estimated (2009-2010). ICD estimated from Google Maps linework.
Willimantic, CT Windham Co. United States	Eastern Rd. / (driveway) (ECSU Campus by clock tower) (41.72001, -72.21691)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 24.0693	Other (At-Grade) Single-Lane	1999	Not properly signed and painted, but lots of potential for demonstrating this intersection concept. ICD estimated from Google Maps linework.
Niantic, CT New London Co. United States	(Rocky Neck State Park entrance) (41.31555, -72.24149)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Storrs, CT Tolland Co. United States	Hillside Rd. / Alumni Dr. (41.80824, -72.25809)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	On campus of University of Connecticut.
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.
Salem, CT New London Co. United States	Rte 85 (Hartford Rd.-New London Rd.) / Rte 82 (E Haddam Rd.-Norwich Rd.) (41.47662, -72.26473)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.1084	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Hanover, NH Grafton Co. United States	NH 10 (Lyme Rd.) / (no intersecting street) (43.72763, -72.26868)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2006
Hanover, NH Grafton Co. United States	Lyme Rd. (NH 10) / Reservoir Rd. (43.71814, -72.27405)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 35.3912	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Keene, NH Cheshire Co. United States	Main St. / Winchester St. / Marlboro St. (42.92849, -72.27757)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.2307	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Functional Class: Arterial 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
Keene, NH Cheshire Co. United States	Winchester St. / Pearl St. / Island St. / (parking) (42.92674, -72.28771)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2023	Combined 3 intersections: one all-way stop, one one-way stop; one one-way yield. https://www.keenewinchesterstreet.com/
Keene, NH Cheshire Co. United States	Winchester St. / Key Rd. / (parking) (42.92459, -72.28941)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2023	https://www.keenewinchesterstreet.com/
Keene, NH Cheshire Co. United States	Court St. / Allen Ct. / Cheshire Medical Center entrance (42.94991, -72.29057)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 26.2257	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Keene, NH Cheshire Co. United States	Rte. 101 / Winchester St. (42.92247, -72.29079)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 59.4713	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Functional Class: Arterial ICD estimated from Google Maps linework.
Stafford Springs, CT Tolland Co. United States	Rte 32 / Rte 190 (41.95362, -72.30314)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 18.6523	Other (At-Grade) Multilane (2 Lane, unspecified)	1890	Believed by some to be improperly signed and painted, though some roundabout features have been added in the past 10 years. Near railroad crossing. Year Completed estimated (1890?). ICD estimated from Google Maps linework.
Keene, NH Cheshire Co. United States	NH 12A (Maple Ave.) / Court St. / Old Walpole Rd. (42.96305, -72.30895)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.7161	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Keene, NH Cheshire Co. United States	Rte 9 / Base Hill Rd. (42.92477, -72.31239)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 43.7273	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
North Haven, NY Suffolk Co. United States	Tyndall Road / Rte. 114 (Ferry Rd.) (41.01303, -72.31309)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.2334	Other (At-Grade) Single-Lane	2001	Replaced a dangerous 2-way stop. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Water Mill, NY Suffolk Co. United States	Scuttlehole Rd. / Mitchells Ln. (40.95021, -72.32856)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 26.1595	Other (At-Grade) Single-Lane	2005	Year completed estimated (2004-2006). ICD estimated from Google Maps linework.
White River Junction, VT Windsor Co. United States	Sykes Mountain Ave. / Ralph Lehman Dr. (43.64620, -72.33411)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2021	https://www.vnews.com/Hartford-prepares-to-use-Route-5-roundabout-40112771
White River Junction, VT Windsor Co. United States	US 5 / Sykes Mountain Ave. / (parking) (43.64694, -72.33556)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2021	https://www.vnews.com/Hartford-prepares-to-use-Route-5-roundabout-40112771
Stafford Springs, CT Tolland Co. United States	W Stafford Rd. (Rte 190) / Orcuttville Rd. (Rte 319) (41.97141, -72.33620)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020
Coventry, CT Tolland Co. United States	Daly Rd. / South St. (41.76721, -72.33688)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.9424	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Claremont, NH Sullivan Co. United States	Main St. / Broad St. / Tremont St. / Sullivan St. (43.37272, -72.33808)	Other Existing	Other Unknown	0 Approaches 0 Driveways 32.1219	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Shelter Island, NY Suffolk Co. United States	Rte 114 / Bateman Rd. / School St. (41.06829, -72.33887)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.8096	Other (At-Grade) Single-Lane	2010	Converted from old traffic circle. ICD estimated from Google Maps linework.
Barre, VT Washington Co. United States	E Barre Rd. (US 302) / Mill St. (VT 110) / Cobble Hill Rd. (44.16088, -72.44848)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 34.2718	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Granby, MA Hampshire Co. United States	US 202 (E State St.) / School St. (42.26516, -72.47326)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2024