Roundabouts Database Index

29359 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
Statesville, NC Iredell Co. United States	US 21 / Free Nancy Rd. (35.80533, -80.87606)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 96.8615	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	For Ingles Development - Project I-2819. ICD estimated from Google Maps linework.
Statesboro, GA Bulloch Co. United States	Forest Dr. / Old Register Rd. (32.42382, -81.79015)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.2035	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Statesboro, GA Bulloch Co. United States	W. Gentilly Rd. / O'Neal Dr. (32.42258, -81.77542)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.1957	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Statesboro, GA Bulloch Co. United States	Langston Chapel Rd. / Burkhalter Rd. (32.39247, -81.76561)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.2377	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2017-2019). https://www.statesboroherald.com/local/roundabout-construction-to-begin-soon/ ICD estimated from Google Maps linework.
Statesboro, GA Bulloch Co. United States	Burkhalter Rd. / Rushing Rd. (32.40994, -81.73057)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.2405	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2017-2019). https://www.statesboroherald.com/local/roundabout-construction-to-begin-soon/ ICD estimated from Google Maps linework.
Staroderevyankovskaya, Krasnodar Kanevskoy District Russia	R268 / (unknown) (46.12231, 38.98769)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Unknown Unknown		Building in central island.
Starkville, MS Oktibbeha Co. United States	Blackjack Rd. / Oktoc Rd. (33.44708, -88.79340)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 31.8893	Other (At-Grade) Single-Lane	2002	http://www.msstate.edu/web/media/detail.php?id=1874 Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Starke, FL Bradford Co. United States	NW 83rd Ave. / NW 77th Ave. / NW 228th St. (30.06115, -82.18254)	Other Existing	Uncontrolled Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No control.
Stargard Szczeciński, Zachodniopomorskie Stargard County Poland	Rondo 15 Południk [Szczecińska / Hanzeatycka / Skandynawska / (parking)] (53.34301, 14.99385)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Staré Město, Zlín Uherské Hradiště Czechia	Hustenovska / (unknown) (49.08655, 17.44884)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Stara Zagora, Stara Zagora Stara Zagora Bulgaria	ulitsa Dimcho Staev / ulitsa Anastasiya Tosheva / bulevard Slavyanski / ulitsa Georgi Baydanov (42.41817, 25.62058)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Stara Zagora, Stara Zagora Stara Zagora Bulgaria	ulitsa Bratya Zhekovi / ulitsa Anastasiya Tosheva / bulevard Slavyanski (42.41818, 25.62063)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Stanwell Tops, NSW Wollongong Australia	Lady Wakehurst Dr. (Otford Rd.) / (parking) (-34.22334, 150.99762)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane		At Bald Hill Lookout Rest Area.
Stanton, CA Orange Co. United States	Lansdale Cir. / Moordale Cir. (33.77871, -117.99627)	Traffic Calming Circle Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Stanthorpe, QLD Southern Downs Australia	Maryland St. / Folkestone St. (-28.65816, 151.93369)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Stanthorpe, QLD Southern Downs Australia	Maryland St. / Railway St. (-28.65579, 151.93412)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Stanthorpe, QLD Southern Downs Australia	Lock St. / High St. (-28.65449, 151.93572)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Stanmore Bay, Auckland Whangaparāoa New Zealand	Wade River Rd. / Rishworth Ave. / Cochrane Ave. (-36.63901, 174.74327)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Stanley Bridge, PE Queens Canada	PE-6 / St Marys Rd. / Cavendish Rd. / Rattenbury Rd. (46.46131, -63.45422)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 16.4541	Other (At-Grade) Single-lane w/ Traversable Central Island	2015	ICD estimated from Google Maps linework.
Stanford, CA Santa Clara Co. United States	Campus Dr. / Santa Teresa St. (37.42678, -122.18140)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.5567	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Stanford, CA Santa Clara Co. United States	Campus Dr. / Serra St. (37.42679, -122.15944)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.5257	Other (At-Grade) Single-Lane	2018	https://transportation.stanford.edu/news/stanfords-fifth-roundabout-open-serra-street-and-campus-drive-east ICD estimated from Google Maps linework.
Stanford, CA Santa Clara Co. United States	Campus Dr. / Galvez St. (37.43156, -122.16420)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.2453	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Stanford, CA Santa Clara Co. United States	Campus Dr. / Escondido Rd. (37.42427, -122.16053)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 19.9182	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Stanford, CA Santa Clara Co. United States	Campus Dr. / Bowdoin St. (37.42271, -122.16149)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.5066	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Stanford, CA Santa Clara Co. United States	Galvez St. / Arboretum Rd. (37.43602, -122.16281)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	Right-turn bypass lane on northeast leg; through bypass lane on southwest leg. Year Completed estimated (2018-2020).
Standish, ME Cumberland Co. United States	Ossipee Trl. (Rte 25) / Manchester Rd. / Saco Rd. (43.73761, -70.63064)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019
Standish, MI Arenac Co. United States	US 23 / M-13 (43.95018, -83.96713)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.2920	Other (At-Grade) Single-Lane	2022	Grade separation replaced with roundabout. https://www.upnorthvoice.com/news/2022/03/us-23-at-standish-to-undergo-major-construction-this-summer-2/
Stamford, CT Fairfield Co. United States	Shippan Ave. / Fairview Ave. (41.02609, -73.52336)	Traffic Calming Circle Existing	One-Way/Two-Way Stop None	4 Approaches 0 Driveways 13.5152	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Stamford, CT Fairfield Co. United States	Davenport Ridge Rd. / Lakeside Dr. / Newfield Ave. (41.12314, -73.53272)	Other Existing	All-Way Yield None	3 Approaches 1 Driveways 23.3918	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Stallings, NC Union Co. United States	Matthews Weddington Rd. / Chestnut Ln. (35.06272, -80.72727)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1960	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	Year Completed estimated (2019-2021).
Stäket, Stockholm County Järfälla Sweden	Rte 267 / E18 EB Ramps (59.47017, 17.81034)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.4357	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Stäket, Stockholm County Järfälla Sweden	Trafikplats Stäket (Rte 267 / E18 WB Ramps) (59.47308, 17.81194)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 61.2718	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Staines-upon-Thames, England Greater London United Kingdom	Stanwell Moor Rd. / Southern Perimeter Rd. (51.46354, -0.49342)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways 87.0576	Other (At-Grade) Multilane (3+ Lane)		ICD estimated from Google Maps linework.
Staines-upon-Thames, England Greater London United Kingdom	Southern Perimeter Rd. / Western Perimeter Rd. (51.46226, -0.48932)	Roundabout Existing	All-Way Yield Pedestrian Signal (red-yellow-green to drivers)	4 Approaches 0 Driveways 64.7369	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Staines-upon-Thames, England Surrey United Kingdom	A30 / M25 Ramps (51.44442, -0.52944)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
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.
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
Stafford Heights, QLD Brisbane Australia	Trouts Rd. / Felstead St. / Redwood St. (-27.40107, 152.99760)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Stafford Heights, QLD Brisbane Australia	Appleby Rd. / Wilgarning St. / Jarvis St. (-27.40089, 153.00954)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Stafford, VA Stafford Co. United States	Stefaniga Farms Dr. / Bergamont Dr. / Lupine Dr. (38.44014, -77.51576)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 45.8379	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2003-2005). ICD estimated from Google Maps linework.
Stafford, VA Stafford Co. United States	Woodstream Blvd. / Pike Pl. (38.47492, -77.40636)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.5956	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2008). ICD estimated from Google Maps linework.
Stafford, VA Stafford Co. United States	Doc Stone Rd. / Juggins Rd. / Moncure Ln. (38.47662, -77.41360)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 39.2698	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Staffanstorp, Skane County Staffanstorp Sweden	Rte 108 / E22 Ramps / Malmövägen (55.67936, 13.18008)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 80.8069	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Staffanstorp, Skane County Staffanstorp Sweden	Rte 108 / E22 Ramps (55.67813, 13.18171)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 60.6071	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Stadskanaal, Groningen Gemeente Stadskanaal Netherlands	N378 / Semsstraat / Handelsstraat (53.00067, 6.93157)	Roundabout Existing	All-Way Yield Other	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane		Drawbridge on southwest leg.
Stadskanaal, Groningen Gemeente Stadskanaal Netherlands	N378 / Esdoornstraat / Beerhavenstraat / Semmelweislaan (53.00217, 6.93410)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways	Other (At-Grade) Single-Lane		Oval shaped.
St.-Étienne, Auvergne-Rhône-Alpes Loire France	Place Paul-Louis Courier (45.40953, 4.38702)	Other Existing	Unknown Unknown	7 Approaches 0 Driveways	Other (At-Grade) Unknown		Trams through central island.
St. Simons Island, GA Glynn Co. United States	Harrison Point Dr. / Sinclair Ave. (31.18167, -81.38167)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 24.5228	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
St. Simons Island, GA Glynn Co. United States	Harrison Point Dr. / Graham Ave. (31.18167, -81.37972)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 22.4792	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
St. Simons, GA Glynn Co. United States	Frederica Rd. / Lawrence Rd. (31.21650, -81.37550)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.8563	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
St. Simons, GA Glynn Co. United States	Demere Rd. / Frederica Rd. (31.15957, -81.38859)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.9249	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	ICD estimated from Google Maps linework.
St. Petersburg, St. Petersburg City Saint Petersburg Russia	Gostilitskoye shosse / Astronomicheskaya ulitsa (59.87023, 29.82498)	Rotary Existing	Uncontrolled None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
St. Petersburg, St. Petersburg City Saint Petersburg Russia	Kolpinskoye shosse / Sofiyskaya ulitsa (59.74856, 30.53130)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
St. Petersburg, St. Petersburg City Saint Petersburg Russia	ploshchad' Pobedy [Moskovskiy prospekt / Pulkovskoye shosse / Moskovskoye shosse / ulitsa Ordzhonikidze] (59.84305, 30.32202)	Other Existing	Other None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
St. Petersburg, St. Petersburg City Saint Petersburg Russia	Severnaya ploshchad' [Severnyy prospekt / Grazhdanskiy prospekt] (60.02204, 30.40677)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
St. Petersburg, St. Petersburg City Saint Petersburg Russia	Kronshtadtskaya ploshchad' (59.85203, 30.23628)	Other Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown		Hamburger shaped. Trams through central island.
St. Petersburg, St. Petersburg City Saint Petersburg Russia	ploshchad' Moskovskiye Vorota (59.89174, 30.31946)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
St. Petersburg, St. Petersburg City Saint Petersburg Russia	Narodnaya ulitsa / prospekt Bol'shevikov (59.88495, 30.48899)	Other Existing	Signal Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Hamburger shaped.
St. Petersburg, St. Petersburg City Saint Petersburg Russia	Peterburgskoye shosse / Oktyabr'skiy bul'var (59.72947, 30.39466)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Unknown
St. Petersburg, St. Petersburg City Saint Petersburg Russia	ploshchad' Muzhestva (59.99836, 30.36379)	Signalized Roundabout/Circle Existing	Signal Unknown	6 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Trams through central island.
St. Petersburg, St. Petersburg City Saint Petersburg Russia	Komsomol'skaya ploshchad' / Krasnoputilovskaya ulitsa / Korabel'naya ulitsa (59.87645, 30.25747)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
St. Louis, MO St. Louis City Co. United States	Tower Grove Ave. / I-64 EB Off-Ramp (38.63045, -90.25538)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5879	Freeway Ramps (Grade-Separated) Single-Lane	2014	ICD estimated from Google Maps linework.
St. Louis, MO St. Louis City Co. United States	Gratiot St. / S 13th St. (38.62104, -90.20242)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 33.5923	Other (At-Grade) Single-Lane		No splitter islands. ICD estimated from Google Maps linework.
St. Louis, MO St. Louis Co. United States	Halls Ferry / MO 367 (38.72251, -90.24017)	Rotary Existing	All-Way Yield None	6 Approaches 0 Driveways 86.6571	Other (At-Grade) Multilane (2 Lane, unspecified)		three of the six approaches are multilane and have dual lanes of traffic merging into both lanes of the roundabout; roundabout is unstriped. Description as follows: Halls Ferry Circle is 3 lanes wide, 350 foot diameter, 35 miles per hour and has 5 major roadways entering (from http://www.ballwin.mo.us/minutes_062402.html) ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	Main St. / 200 N St. / Diagonal St. (37.11152, -113.58350)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 30.4778	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	750 N St. / 2860 E St. (37.12077, -113.52450)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.5218	Other (At-Grade) Single-Lane	2001	Next to school campus. ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	Main St. / Hope St. (400 N) (37.11495, -113.58340)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 28.5717	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	E. Brigham Rd. / I-15 SB Ramps / Pioneer Rd. (37.05999, -113.58560)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 78.1526	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2006	Combines interchange ramps and frontage road. ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	Tabernacle Rd. / Main St. (37.10812, -113.58350)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.8119	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	E. Brigham Rd. / I-15 NB Ramps (37.05939, -113.58350)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.8889	Freeway Ramps (Grade-Separated) Single-Lane	2006	Raindrop-shaped interchange terminal. ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	N Ridgecrest / W 1130 N / (parking) (37.12710, -113.60330)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5671	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	N Ridgecrest / Valley View Dr. / (parking) (37.12601, -113.60230)	Roundabout Existing	Unknown None	4 Approaches 0 Driveways 22.8540	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	(unknown) / (unknown) (37.15329, -113.63020)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 32.3648	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	Snow Canyon Pkwy. / (unknown) (37.16312, -113.64370)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.2034	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	Washington Pkwy. / (unknown) (37.14462, -113.48590)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9290	Other (At-Grade) Multilane (2 Lane, unspecified)	2005	Date estimated. ICD estimated from Google Maps linework.
St. George, Saint George Bermuda	Kindley Field Rd. / Mullet Bay Rd. / St David's Rd. / Southside Rd. (32.36990, -64.69213)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
St. Croix Falls, WI Polk Co. United States	US 8 / 208th St. (45.39731, -92.58540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.2548	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	Opened March 8, 2011. ICD estimated from Google Maps linework.
St. Clair Township, OH Butler Co. United States	Hamilton Trenton Rd. / Riverside Dr. / Busenbark Rd. / (parking lot) (39.46565, -84.48671)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.7252	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
St. Clair Township, OH Butler Co. United States	Jacksonburg Rd. / Morganthaler Rd. (39.46012, -84.52261)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0399	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
St. Clair Township, OH Butler Co. United States	Eaton Rd. / Beissinger Rd. (39.44294, -84.58301)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6602	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
St. Asaph, Wales Denbighshire United Kingdom	Ffordd William Morgan / A55 (North Wales Expressway) WB Ramps (53.26168, -3.47766)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane		Raindrop shaped.
St. Asaph, Wales Denbighshire United Kingdom	Ffordd William Morgan / A55 (North Wales Expressway) EB Ramps (53.26270, -3.47690)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane		Raindrop shaped.
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	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).
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).
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.
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
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.
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
St Simons Island, GA Glynn Co. United States	Demere Rd. / E Beach Causeway (31.14836, -81.38116)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.arcgis.com/apps/MapJournal/index.html?appid=1665571e5832424bbef0fe01a60a00c0&section=7
St Simons Island, GA Glynn Co. United States	Ocean Blvd. / Ocean Rd. / E Beach Causeway / 1st St. (31.14671, -81.37451)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	https://www.arcgis.com/apps/MapJournal/index.html?appid=1665571e5832424bbef0fe01a60a00c0&section=8
St Simons Island, GA Glynn Co. United States	Brockinton Dr. / Hanging Moss Dr. (31.16501, -81.39671)	Traffic Calming Circle Existing	Unknown None	3 Approaches 0 Driveways 40.8785	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
St Simons Island, GA Glynn Co. United States	Kings Way / Frederica Rd. / Retreat Ave. (31.14561, -81.40034)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2021	Year Completed estimated (2019-2021).
St Peters, MO St. Charles Co. United States	Executive Centre Pkwy. / Jungermann Cir. (38.79655, -90.58169)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 48.7680	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2015	Two circulating lanes throughout even though side street has only one entering lane. Year Completed estimated (2014-2015).
St Peters, MO St. Charles Co. United States	Jungermann Cir. / Wellness Dr. (38.79591, -90.57980)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2015).
St Peter, MN Nicollet Co. United States	W Broadway Ave. / Sunrise Dr. (44.33175, -93.96950)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2022	Elliptical shaped. ICD = 140 ft x 130 ft. https://www.keyc.com/2022/08/15/roundabout-construction-begins-st-peter/
St Peter, MN Nicollet Co. United States	CSAH 5 (W Broadway Ave.-Fort Rd.) / 357th Ave. (44.32626, -93.98485)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2017	Entrance to St Peter High School. Year Completed estimated (2016-2020).
St Paul, MN Ramsey Co. United States	Coral Sea St. NE / Ring Rd. (45.12147, -93.19897)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways 33.7090	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	ICD estimated from Google Maps linework.
St Paul, MN Dakota Co. United States	Northwood Pkwy. / Central Pkwy. / Denmark Ave. / (unknown) (44.83731, -93.15923)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4888	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.