Roundabouts Database Index

30375 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
Olean, NY Cattaraugus Co. United States	N Union St. / Wayne St. / (parking lot) (42.08521, -78.42995)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.8183	Other (At-Grade) Single-Lane	2015	Crosswalk on east parking lot leg passes over painted splitter island in front of yield position. ICD estimated from Google Maps linework.
Olean, NY Cattaraugus Co. United States	N Union St. / Main St. (42.08706, -78.42994)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 28.3630	Other (At-Grade) Single-Lane	2015	Yield-controlled right-turn bypass lane on north leg; it terminates at crosswalk across west leg. ICD estimated from Google Maps linework.
Vestal, NY Broome Co. United States	Glenn G Bartle Dr. / West Dr. (42.09200, -75.96836)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)		Concentric striped circulatory roadway.
Elmira, NY Chemung Co. United States	N Main St. / Park Pl. / W 3rd St. (42.09278, -76.80993)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 33.6780	Other (At-Grade) Single-Lane	2019	https://www.mytwintiers.com/local-news-3/elmira-cultural-connectors-ribbon-cutting-took-place-and-the-roundabout-is-officially-open/ ICD estimated from Google Maps linework.
Marion, IA Linn Co. United States	County Home Rd. / Alburnett Rd. (42.09450, -91.61904)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2020	Year Completed estimated (2019-2020).
Marion, IA Linn Co. United States	County Home Rd. / C Ave. Extension (42.09487, -91.64848)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://cbs2iowa.com/news/local/county-home-road-reopens-in-linn-county-after-improvement-project
West Springfield, MA Hampden Co. United States	Rte 147 (Memorial Ave.) / US 5 Ramps (42.09762, -72.59717)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 37.2202	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		One of several along US 5. ICD estimated from Google Maps linework.
Binghamton, NY Broome Co. United States	Court St. / Exchange St. / Chenango St. (42.09878, -75.91089)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2014	Located in downtown next to courthouse. Year Completed estimated (2012-2015).
Springfield, MA Hampden Co. United States	Walnut St. / Alden St. / Hancock St. / Ashley St. (42.10143, -72.56719)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2020	https://www.wwlp.com/news/local-news/hampden-county/six-corners-roundabout-project-completed-more-than-a-year-later/
Gilbert, IA Story Co. United States	Gretten St / Matthews Dr (42.10645, -93.64027)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 84.1769	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Glenview, IL Cook Co. United States	Patriot Blvd. / (parking) (42.10673, -87.82186)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-lane w/ Traversable Central Island	2023	Add-lane right-turn bypass lane on north leg. https://www.glenview.il.us/index.php?section=newsroom&prrid=5
Johnson City, NY Broome Co. United States	Riverside Dr. / Floral Ave. / Rte 201 Ramps (42.10678, -75.96601)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, unspecified)	2005	http://www.dot.state.ny.us/reg/r9/cur_project/circle/about/index.html
West Springfield, MA Hampden Co. United States	Elm St. / Westfield St. / (parking) (42.10703, -72.62284)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2024	https://www.wwlp.com/news/local-news/hampden-county/final-phases-of-construction-of-the-new-elm-street-roundabout-in-west-springfield/
West Springfield, MA Hampden Co. United States	Park St. / West St. / US 5 Ramps (42.10753, -72.61637)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 84.1755	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Benton Harbor, MI Berrien Co. United States	Main St. (I-94 Business) / Riverview Dr. (42.11343, -86.46642)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.0091	Other (At-Grade) Single-Lane	2010	Completed November 2010. Part of downtown streetscape project. ICD estimated from Google Maps linework.
Benton Harbor, MI Berrien Co. United States	Main St. (I-94 Business) / 5th St. (42.11655, -86.45281)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4639	Other (At-Grade) Single-Lane	2010	Completed November 2010. Part of downtown streetscape project. ICD estimated from Google Maps linework.
Norfolk, MA Norfolk Co. United States	Union St. / North St. / Liberty Ln. (42.11823, -71.32501)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.8054	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Norfolk, MA Norfolk Co. United States	Main St. / Rockwood Rd. / Union St. (42.11966, -71.32520)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.8049	Other (At-Grade) Single-Lane	2004	Pedestrian crossings at yield lines. At-grade railroad crossing to the north. Year Completed estimated (2003-2005). ICD estimated from Google Maps linework.
Brockton, MA Plymouth Co. United States	N Quincy St. / Boundary Ave. / Chestnut St. (42.12289, -71.00124)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2021
Binghamton, NY Broome Co. United States	US 11 (Upper Front St.) / I-81 NB Ramps (42.12299, -75.90472)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2022	https://www.binghamtonhomepage.com/news/new-roundabout-opens-on-upper-front-st/ https://www.wbng.com/2022/06/22/one-roundabout-completed-one-more-go-town-dickinson-see-bridge-completion-new-traffic-patterns/
Springfield, MA Hampden Co. United States	Saint James Ave. / Tapley St. (42.12539, -72.56763)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2025
Binghamton, NY Broome Co. United States	Upper Front St. / Old Front St. / I-81 SB Ramps (42.12650, -75.90703)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)	2022	https://www.wbng.com/2022/08/04/second-roundabout-now-open-rt-11-town-dickinson/
Westfield, MA Hampden Co. United States	Parker Ave. / Pochassic St. / Montgomery St. (42.13113, -72.74647)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways 30.4800	Other (At-Grade) Single-Lane	2008	stop-controlled traffic circle retrofit, near bridge
Springfield, MA Hampden Co. United States	Springfield St / Hamburg St / Rimmon Ave (42.13225, -72.60011)	Traffic Calming Circle Existing	Other None	4 Approaches 0 Driveways 27.4571	Other (At-Grade) Single-Lane		Hamburg St stop-controlled ICD estimated from Google Maps linework.
Kumanovo, Northeastern Kumanovo North Macedonia	R1104 (Ulica 3-ta Makedonska Udarna Brigada - Ulica 11-ti Oktomvri) / Ulica 3-ta Makedonska Udarna Brigada (42.13446, 21.70531)	Unknown Existing	Unknown None	3 Approaches 0 Driveways	Other (At-Grade) Unknown
Algonquin, IL Kane Co. United States	Bolz Rd. / Longmeadow Pkwy. (42.13872, -88.27011)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://kanecountyconnects.com/2020/11/as-longmeadow-parkway-opens-kdot-permanently-closes-portion-of-bolz-road/
West Dundee, IL Kane Co. United States	Millbrook Dr. / (unknown) / (parking) (42.14551, -88.34157)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2013-2015).
Homer, MI Calhoun Co. United States	Hillsdale St. / Main St. (42.14585, -84.80890)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 39.8485	Other (At-Grade) Single-Lane		Before 1999. ICD estimated from Google Maps linework.
Canton, MA Norfolk Co. United States	Pleasant St. / Bolivar St. / Lincolnshire Dr. (42.15077, -71.12804)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2015
Weymouth, MA Norfolk Co. United States	Patriot Pkwy / Marker St (42.15310, -70.94390)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.6148	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Rockland, MA Plymouth Co. United States	Bill Delahunt Pkwy / Union St (42.15400, -70.92708)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.5828	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Augusta Township, MI Washtenaw Co. United States	Whittaker Rd. / Willis Rd. (42.15726, -83.60088)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2024	https://www.facebook.com/photo.php?fbid=960810756074083&set=a.249859160502583&type=3.
Charlton, MA Worcester Co. United States	US 20 (Southbridge Rd.) / Oxbow Rd. (42.15929, -71.90133)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2025
Erwin, NY Steuben Co. United States	Robert Dann Dr. / Science Center Rd. (42.15936, -77.11082)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2001	Add-lane right-turn bypass lane on west leg.
Coral, IL McHenry Co. United States	US 20 / Harmony Rd. (42.16114, -88.52668)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2020
Corning, NY Steuben Co. United States	Robert Dann Blvd. / Aurene Dr. / Creekside Dr. (42.16506, -77.11484)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.7216	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Access permits for research and development plant. ICD estimated from Google Maps linework.
Horseheads, NY Chemung Co. United States	Rte 13 / E. Franklin St. (42.16756, -76.80553)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.7531	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
York Township, MI Washtenaw Co. United States	W Bemis Rd. / Moon Rd. (42.17062, -83.73832)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.9936	Other (At-Grade) Single-lane w/ Traversable Central Island	2018
Horseheads, NY Chemung Co. United States	Rte 13 / Horseheads Connector Rd. (42.17077, -76.80564)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023
Braintree Highlands, MA Norfolk Co. United States	South St. / (unknown) (42.17309, -71.01367)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2002	Painted splitter island on southeast leg. Year Completed estimated (2001-2002).
Ypsilanti, MI Washtenaw Co. United States	Whittaker Rd. / Bemis Rd. (42.17317, -83.60141)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2023	https://www.wcroads.org/wcrc-project/bemis-rd-whittaker-rd-roundabout/
Klamath Falls, OR Klamath Co. United States	OR 140 / Homedale Rd. (42.17351, -121.72272)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021
Algonquin, IL McHenry Co. United States	N Main St. / Cary Rd. / Arrowhead Dr. (42.17487, -88.28598)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.facebook.com/AlgonquinIL/videos/710925177010156/
Marengo, IL McHenry Co. United States	SR 23 / I-90 EB Ramps (42.17539, -88.61798)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2020	Yield-controlled right turn bypass lane on east leg off freeway exit ramp. Merging right turn bypass lane on south leg onto freeway entrance ramp.
Horseheads, NY Chemung Co. United States	Old Ithaca Rd. / Horseheads Connector Rd. / E St. (42.17554, -76.81741)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023
Scituate, MA Plymouth Co. United States	County Way / New Driftway / Main St. (Rte 123) / Chief Justice Cushing Hwy (Rte 3A) (42.17701, -70.75060)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 58.4157	Other (At-Grade) Single-Lane	2008	Pedestrian facilities, RTBPL ICD estimated from Google Maps linework.
Essex, ON Essex Canada	Maidstone Ave. E (CR 8) / CR 23 (42.17719, -82.80347)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.5989	Other (At-Grade) Single-Lane	2010	https://www.infrastructure.gc.ca/media/news-nouvelles/2010/20101112essexcounty-eng.html ICD estimated from Google Maps linework.
Marengo, IL McHenry Co. United States	SR 23 / I-90 WB Ramps (42.17930, -88.61798)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2020	Yield-controlled right turn bypass lane on east leg off freeway exit ramp. Merging right turn bypass lane on south leg onto freeway entrance ramp.
Marengo, IL McHenry Co. United States	SR 23 / Harmony Rd. (42.18243, -88.61803)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2020	Yield-controlled right-turn bypass lane on north leg.
Pazardzhik, Pazardzhik Pazardzhik Bulgaria	ulitsa Hristo Kasapvelev / ulitsa Tsaritsa Yoanna / ulitsa D-r Nikola Lambrev (42.18316, 24.32002)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Norwood, MA Norfolk Co. United States	Brook St. / Nichols St. / Bullard St. / Minihan Ln. (42.18364, -71.23340)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
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.
Pittsfield Township, MI Washtenaw Co. United States	Campus Pkwy. / Suncrest Dr. / (parking) (42.18764, -83.74729)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2002
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.
Ypsilanti, MI Washtenaw Co. United States	Whittaker Rd. / Merrit Rd. (42.18812, -83.60861)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2016	Replaced skewed intersection.
Norwood, MA Norfolk Co. United States	Neponset St. / US 1 Ramps (42.18827, -71.18453)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 164.5920	Freeway Ramps (Grade-Separated) Single-Lane
Horseheads, NY Chemung Co. United States	Rte 13 / Old Ithaca Rd. / Breesport Rd. (42.18851, -76.79076)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.2025	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Great Barrington, MA Berkshire Co. United States	US 7 (Main St.) / Rte 23-Rte 41 (Maple Ave.) (42.18916, -73.36466)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.townofgb.org/home/news/state-dot-begins-gb-roundabout-work-brown-bridge-repair-completion-set-june
Norwood, MA Norfolk Co. United States	Nichols St. / Victoria Cir. / Berwick Pl. (42.18956, -71.21498)	Other Existing	Other Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Three way Yield, One way Stop (From the western part of Nichols Street).
Pittsfield Township, MI Washtenaw Co. United States	Campus Pkwy. / Community Dr. (42.18982, -83.74387)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2002
Portage, MI Kalamazoo Co. United States	Zylman Ave. / Coxs Dr. (42.19367, -85.55061)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2020	Replaced offset T-intersections. Year Completed estimated (2018-2020).
Saline, MI Washtenaw Co. United States	Ann Arbor-Saline Rd. / Textile Rd. (42.19859, -83.79691)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-lane w/ Traversable Central Island	2016
Ann Arbor, MI Washtenaw Co. United States	Textile Rd. / Woodland Dr. (42.19953, -83.76754)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://thesalinepost.com/g/saline-mi/n/15400/washtenaw-county-road-commission-opens-roundabout-intersection-textile-woodland
Ypsilanti, MI Washtenaw Co. United States	Textile Rd. / Hitchingham Rd. (42.20169, -83.62088)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-lane w/ Traversable Central Island	2015
Ypsilanti, MI Washtenaw Co. United States	Textile Rd. / Stony Creek Rd. (42.20172, -83.62311)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-lane w/ Traversable Central Island	2016
Braintree, MA Norfolk Co. United States	Liberty St. / Pearl St. / Lenox Dr. (42.20251, -70.98480)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4266	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Millbury, MA Worcester Co. United States	Greenwood St. / McCracken Rd. (42.20395, -71.78713)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2025
Braintree, MA Norfolk Co. United States	Liberty St. / Pearl Pl. / Middle St. (42.20400, -70.98490)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.9648	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Norwood, MA Norfolk Co. United States	Washington St. / Upland Rd. / Prospect St. / Fulton St. (42.20417, -71.19667)	Other Removed	Other Unknown	5 Approaches 3 Driveways 0.0000	Other (At-Grade) Single-Lane	2025	Removed in 2025. Wide circular roadway. New pavement markings on circular roadway approx 2016 (e.g. splitter island, traffic lanes dedicated left-through-right on Prospect St). New pavement markings to extend/complete central island. Markings go into roadway on Washington Street. No additional pavement markings on Washington Street to delineate through-left. Missing or submerged curbs, various layers of resurfacing and fixtures of potholes. Sidewalks present, crosswalk present. Crosswalk along Washington Street very long (2 x 70 - 90 ft). Possible drainage issues, general water management concerns with condition existing inlets. Bus line 34E on Washington Street; bus stop just south of traffic circle.
Ypsilanti, MI Washtenaw Co. United States	Whittaker Rd. / Stony Creek Rd. (42.20999, -83.61936)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.4632	Unknown Multilane (2 Lane, unspecified)	2010	Fourth leg serves parking lot.
Braintree, MA Norfolk Co. United States	Union Street / Rte 3 (42.21028, -70.99659)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 65.4619	Freeway Ramps (Grade-Separated) Single-Lane		Braintree Rotary ICD estimated from Google Maps linework.
Tecumseh, ON Essex Canada	Walker Rd. (CR 11) / S Talbot Rd. (42.21667, -82.96444)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2020	https://www.youtube.com/watch?v=TuFUrtqYzBs
Jackson, MI Jackson Co. United States	4th St. / Hickory Ave. (42.21719, -84.41821)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.5726	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Greenport, NY Columbia Co. United States	Rip Van Winkle Bridge (Rte 23) / Rhinebeck-Hudson Rd (Rte 9G) (42.21926, -73.83312)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 42.4557	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Jackson, MI Jackson Co. United States	4th St. / West Ave. (42.22067, -84.41847)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.3790	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Between 1999 and 2005. ICD estimated from Google Maps linework.
South Hadley, MA Hampshire Co. United States	US 202 (Purple Heart Dr.) / N Main St. (42.22171, -72.60281)	Rotary Existing	All-Way Yield None	5 Approaches 0 Driveways 292.6080	Other (At-Grade) Multilane (2 Lane, unspecified)		Oval shaped. ICD 960 ft x 640 ft.
Lincolnshire, IL Lake Co. United States	Everett Rd. / Riverwoods Rd. (42.22193, -87.90590)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.4539	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Mattawan, MI Van Buren Co. United States	N Main St. / I-94 EB Ramps (42.22215, -85.78540)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 38.9160	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2011	ICD estimated from Google Maps linework.
Windsor, ON Essex Canada	Laurier Pkwy. / Mike Raymond Dr. (42.22251, -83.04987)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.9514	Other (At-Grade) Single-Lane	2011	Fourth approach stubbed. Year Completed estimated (2009-2012). ICD estimated from Google Maps linework.
Westwood, MA Norfolk Co. United States	East St. / US 95 Ramps / Canton St. / Allied St. (42.22317, -71.17071)	Rotary Existing	Unknown Unknown	6 Approaches 0 Driveways 86.6751	Freeway Ramps (Grade-Separated) Unknown		ICD estimated from Google Maps linework.
Mattawan, MI Van Buren Co. United States	S Main St. / I-94 WB Ramps / Cole Ave. (42.22384, -85.78535)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 1 Driveways 57.4880	Freeway Ramps (Grade-Separated) Single-Lane	2011	ICD estimated from Google Maps linework.
Urbana, IA Benton Co. United States	SR 150 (31st Ave. - Sunset St.) / Sunset St. (55th St.) (42.22578, -91.89114)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://vintontoday.com/articles/news/article1033582.html
Jackson, MI Jackson Co. United States	Kibby Rd. / Denton Rd. (42.22748, -84.42911)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 46.8721	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Ann Arbor, MI Washtenaw Co. United States	State St. / Ellsworth Rd. (42.22938, -83.73901)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	Offset crosswalks.
Portage, MI Kalamazoo Co. United States	Texas Dr. / W Milham Rd. / S 12th St. (42.23030, -85.64826)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.7206	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Crystal Lake, IL McHenry Co. United States	E Congress Pkwy. / Federal Dr. (42.23117, -88.30719)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-Lane	2023	https://www.crystallake.org/your-government/departments/community-development/engineering/roundabout-information
Winnebago, NE Thurston Co. United States	US 75 / US 77 (42.23120, -96.47212)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.2574	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Oldcastle, ON Essex Canada	Hwy 9 / Hwy 3 / Hwy 401 WB Ramps / Hwy 401 EB Ramps (42.23142, -82.99124)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.1340	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2012	Year Completed estimated (2009-2014). ICD estimated from Google Maps linework.
Weymouth, MA Norfolk Co. United States	North St / East St / Norton St (42.23165, -70.94496)	Traffic Calming Circle Existing	Other None	4 Approaches 1 Driveways 25.6453	Other (At-Grade) Single-Lane		Control Type is Mixed: Yield on circular road, stop on East St approach, yield on North St SB approach ICD estimated from Google Maps linework.
Dedham, MA Norfolk Co. United States	East St. / Cedar St. (42.23184, -71.15963)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 36.5760	Other (At-Grade) Single-Lane	2015	Old circle converted into a roundabout 2014-2015.
Crystal Lake, IL McHenry Co. United States	E Congress Pkwy. / Exchange Dr. (42.23256, -88.30131)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2023	https://www.crystallake.org/your-government/departments/community-development/engineering/roundabout-information
Spring Arbor, MI Jackson Co. United States	Dearing Rd. / McCain Rd. (42.23292, -84.54088)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	Peanut shaped. https://www.mlive.com/news/jackson/2023/09/it-looks-like-a-peanut-but-its-really-jacksons-newest-roundabout.html.
Ypsilanti Township, MI Washtenaw Co. United States	Wiard Rd. / Airport Dr. (42.23730, -83.56309)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2017
Lake Barrington, IL Lake Co. United States	Roberts Rd. / River Rd. (42.23849, -88.16919)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.8321	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Jackson, MI Jackson Co. United States	E Morrell St. / Martin Luther King Dr. (Francis St.) (42.24012, -84.40396)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	http://www.cityofjackson.org/CivicAlerts.aspx?AID=629
Ashland, MA Middlesex Co. United States	Pond St. / Spyglass Hill Dr. / (parking) (42.24026, -71.43205)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2022	Utility pole within central island on inner edge of truck apron.
Sherborn, MA Middlesex Co. United States	Washington St. / Sanger St. / Maple St. (42.24060, -71.37120)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2024	https://www.youtube.com/watch?v=7B6zWOWi74o.
Boston, MA Suffolk Co. United States	Willard St. / I-93 Ramps / Furnace Brook Expwy. (42.24208, -71.02673)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 99.0276	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Quincy, MA Norfolk Co. United States	Washington St (Rte 3A) / Dee Rd (42.24553, -70.97224)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 66.3095	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Rotary update ICD estimated from Google Maps linework.
Hingham, MA Plymouth Co. United States	Rte. 3A (Summer St.) / Chief Justic Cushing Hwy. / Green St. (42.24615, -70.88130)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 60.1200	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.