Roundabouts Database Index

29361 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
Jacksonville, FL Duval Co. United States	Southside Blvd. SB Ramp / Southside Blvd. Service Rd. / Como Lake Dr. (30.21216, -81.55235)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 34.0593	Other (At-Grade) Single-Lane	1998	ICD estimated from Google Maps linework.
Jacksonville, FL Duval Co. United States	University of North Florida access (30.26963, -81.50950)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 29.9134	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Jacksonville, FL Duval Co. United States	University of North Florida N Entrance Rd (30.27627, -81.50918)	Roundabout Existing	All-Way Yield None	2 Approaches 1 Driveways 36.1000	Other (At-Grade) Single-Lane	2002	Functional Class: Local ICD estimated from Google Maps linework.
Jacksonville, FL Duval Co. United States	University of North Florida N Entrance Rd. / North-South Rd. (30.27613, -81.51447)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 27.8486	Other (At-Grade) Single-Lane	2007	Functional Class: Local ICD estimated from Google Maps linework.
Jacksonville, FL Duval Co. United States	Watermill Blvd. / Maidstone Mill Dr. / W Maidstone Mill Dr. (30.19300, -81.81720)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.4213	Other (At-Grade) Single-Lane	2004	Functional Class: Local ICD estimated from Google Maps linework.
Jacksonville, FL Duval Co. United States	Watermill Blvd. / Staplehurst Dr. (30.19553, -81.81669)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 45.4201	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Jacksonville, FL Jacksonville Co. United States	Touchton Rd. / (parking) (30.26961, -81.56347)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2010	Serves apartment complex.
Jacksonville, FL Jacksonville Co. United States	Touchton Rd. / Winnsboro Dr. (30.26953, -81.56884)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.9134	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Jacksonville, FL Duval Co. United States	W Independent Dr. / S Laura St. (30.32553, -81.65970)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 30.4800	Other (At-Grade) Single-Lane	2010	Laura St and one leg of Independent Dr were converted to two-way from one-way.
Jacksonville, FL Duval Co. United States	Arlington Rd. / Rogero Rd. / King Arthur Rd. (30.33311, -81.58914)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2021
Jacksonville, FL Duval Co. United States	SR 211 (St Johns Ave.) / Herschel St. / Geraldine Dr. (30.29063, -81.71342)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.4317	Other (At-Grade) Single-Lane	2022	Raindrop shaped. Year Completed estimated (2021-2022).
Jacksonville, FL Duval Co. United States	SR 211 (St Johns Ave.) / Herschel St. (30.28895, -81.71349)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2022	Year Completed estimated (2021-2022).
Jacksonville, NC Onslow Co. United States	Aragona Blvd. / Thyme Ct. (34.80023, -77.45887)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Jacksonville, NC Onslow Co. United States	Parkway Dr. / Surry Ct. (34.80117, -77.45822)	Other Existing	Unknown Unknown	3 Approaches 2 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Jacksonville, NC Onslow Co. United States	Aragona Blvd. / Myna Dr. (34.80135, -77.45579)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Jacksonville, NC Onslow Co. United States	Aragona Blvd. / Ramsey Dr. / Ramsey Ct. (34.80252, -77.45365)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Jacksonville, FL Duval Co. United States	Baltimore St. / Moale Ave. (30.38391, -81.39941)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2013
Jacksonville, AR Pulaski Co. United States	Galloway Circle (34.86330, -92.10433)	Other Existing	Unknown Unknown	6 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Buildings in central island.
Jacksonville, NC Onslow Co. United States	Laguna Bay Dr. / Laguna Ln. (34.74484, -77.43996)	Other Existing	Unknown Unknown	2 Approaches 4 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Jacksonville, FL Duval Co. United States	San Marco Blvd. / Landon Ave. / River Rd. (30.30523, -81.65905)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2013
Jacksonville, FL Duval Co. United States	University Blvd. / Merrill Rd. / (parking) (30.35164, -81.60257)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2022	Turbo roundabout. https://www.actionnewsjax.com/news/local/duval-county/have-you-noticed-new-roundabout-arlington-details-why-it-was-built/3VDRL6EQ35B7JI2YFQYYB5ONUA/.
Jacksonville, FL Duval Co. United States	Premier Park Dr. / Palmetto Park Pl. (30.11183, -81.43791)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 33.5277	Other (At-Grade) Single-Lane	2020	Second leg added 2018-2021.
Jacksonville, FL Duval Co. United States	(unknown) / (parking) (30.24766, -81.52946)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2006
Jacksonville, FL Duval Co. United States	San Marco Blvd. / Atlantic Blvd. / Naido Ave. (30.30436, -81.65568)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.0416	Other (At-Grade) Single-Lane	2013
Jacobs Well, QLD Gold Coast Australia	Pimpama Jacobs Well Rd. / Stapylton Jacobs Well Rd. / Helmore Rd. (-27.78040, 153.36161)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Jakobsberg, Stockholm County Järfälla Sweden	Viksjöleden / Kärrvägen (59.42526, 17.82392)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 27.3379	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Viksjöleden / Hastskovägen (59.42530, 17.84232)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 30.9829	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Vijksjöleden / Enköpingsvägen / Unionsvägen (59.42543, 17.84730)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 37.0579	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Folkungavägen / Unionsvägen / E18 Ramps (59.42187, 17.84906)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 37.6694	Freeway Ramps (Grade-Separated) Single-Lane		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Folkungsvägen / Birgittavägen (59.42132, 17.84474)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.3032	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Enköpingsvägen / Flyginfarten (59.41773, 17.85402)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.3822	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Flyginfarten / Folkungavägen (59.41817, 17.85576)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 22.4826	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Herrestavägen / Enkopingsvägen (59.41273, 17.86007)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 45.5801	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Enkopingsvägen / Mustanggatan (59.41098, 17.86109)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 37.6815	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Viksjoleden / E18 Ramps (59.41118, 17.85277)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 41.3278	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Järfällavägen / Frihetsvägen (59.41815, 17.82961)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 27.9513	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Folkungavägen / Tornérvägen (59.42147, 17.83922)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 17.0122	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Folkungavägen / (parking lot) (59.42240, 17.85737)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.9856	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Herrestavägen / Kalvshällavägen (59.41375, 17.86155)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 17.0160	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Jakobsberg, Stockholm County Järfälla Sweden	Karlslundsvägen / Barkarbyvägen (59.41483, 17.86719)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 28.5617	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Jamaica Plain, MA Suffolk Co. United States	Arborway / Centre St. (42.30899, -71.12169)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 75.9583	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Jamaica Plain, MA Suffolk Co. United States	Arborway / Prince St. / Pond St. (42.31339, -71.12175)	Rotary Existing	All-Way Yield Unknown	6 Approaches 0 Driveways 82.1352	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Jamaica Plain, MA Suffolk Co. United States	Heath Square Rotary (Heath St. / New Heath St. / Hensley St. / Parker St.) (42.32630, -71.10037)	Rotary Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 33.5538	Other (At-Grade) Single-Lane	2004	Converted to circular rotary from triangular intersection in 2004. ICD estimated from Google Maps linework.
Jamaica Plain, MA Suffolk Co. United States	Hyde Square Rotary (Centre St. / Perkins St. / Day St.) (42.32193, -71.10991)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.7255	Other (At-Grade) Single-Lane		Stop control on Day St. Reconfigured in 2018 but retains stop control on Day St. ICD estimated from Google Maps linework.
James City, NC Craven Co. United States	Terminal Dr. / Airline Dr. / (parking) (35.07889, -77.03292)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	Only 2 approaches but 4 exits. Year Completed estimated (2019-2022).
James City, NC Craven Co. United States	W Grantham Rd. / Pine St. (35.06418, -77.02352)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling approach only)	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2023	Roundabout relocated to be approximately 50 feet from railroad track. Intersection moved approximately 350 feet southwest of the original location. Previous intersection was controlled with stop signs on 3 of the approaches. https://www.witn.com/2023/09/05/james-city-traffic-roundabout-set-open-friday/
James Island, SC Charleston Co. United States	Fort Johnson Rd. / Harbor View Rd. / Sterling Dr. (32.74134, -79.91551)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2016
James Island, SC Charleston Co. United States	Camp Rd. / Riverland Dr. (32.73323, -79.98198)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2020	Year Completed estimated (2020-2021).
Jamestown, CA Tuolumne Co. United States	SR 108 / People of the Mountain Rd. (MacKey Ranch Rd.) / Sierra Rock Rd. (37.92569, -120.44641)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.uniondemocrat.com/news/local/article_c858c6e0-40ee-11ed-b07d-6b13ef882d63.html
Jämjö, Blekinge County Karlskrona kommun Sweden	E22 (Västra Riksvägen) / Kvarnlyckevägen (56.19204, 15.83579)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2011	Construction in 2010 and finished in 2011. Previous control included a signalized crosswalk across one leg of major road. This was removed in 2010.
Jandakot, WA Cockburn Australia	Karel Ave. / Berrigan Dr. (-32.09006, 115.86411)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Jandakot, WA Cockburn Australia	Karel Ave. / Pilatus St. / Orion Rd. (-32.09103, 115.86835)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Jandakot, WA Cockburn Australia	Karel Ave. / SR 3 (Roe Hwy.) EB Ramps (-32.08544, 115.86405)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane		Raindrop shaped.
Jandakot, WA Cockburn Australia	Karel Ave. / SR 3 (Roe Hwy.) WB Ramps (-32.08701, 115.86359)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		Raindrop shaped.
Jane Brook, WA Swan Australia	Talbot Rd. / Farrall Rd. / White Gum Dr. (-31.86183, 116.04569)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Janesville, WI Rock Co. United States	E Racine St. / I-90 WB-I-39 NB Ramps (42.67077, -88.98221)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 55.3230	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2013	Replaced cloverleaf interchange. ICD estimated from Google Maps linework.
Janesville, WI Rock Co. United States	E Racine St. / I-90 EB-I-39 SB Ramps (42.67098, -88.98493)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 51.8102	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2013	Replaced cloverleaf interchange. ICD estimated from Google Maps linework.
Janesville, IA Bremer Co. United States	Barrick Rd. / US 218 SB Ramps (42.64937, -92.45388)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Freeway Ramps (Grade-Separated) Single-Lane	2012
Janesville, IA Bremer Co. United States	Barrick Rd. / US 218 NB Ramps (42.64935, -92.44918)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2012
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.
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.
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.
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.
Jardia, Setúbal Montijo Portugal	N5 / N11-2 / Rua do Operário (38.68648, -8.94418)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Jardia, Setúbal Montijo Portugal	N4 (Avenida Dom Manuel) / Rua das Forças Armadas / Rua Infante Dom Francisco (38.70686, -8.92771)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Jardines de los Arcos, Jalisco Guadalajara Mexico	San Bonifacio / Sijüenza y Góngora (20.67169, -103.39753)	Other Existing	Uncontrolled Unknown	3 Approaches 0 Driveways 15.6441	Unknown Single-Lane		ICD estimated from Google Maps linework.
Jarrow, England South Tyneside United Kingdom	A194 (Leam Ln. - Newcastle Rd.) / A1300 (John Reid Rd.) / Auckland Terrace (54.96804, -1.46718)	Signalized Roundabout/Circle Existing	Signal None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Järva, Stockholm County Solna Sweden	Kolonnvägen / Gårdsvägen (59.36846, 18.01008)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 23.1241	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Järva, Stockholm County Solna Sweden	Gustav III:s Boulevard / Frögatan (59.37170, 18.01658)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 48.0692	Other (At-Grade) Single-Lane		Parking along circulatory roadway. ICD estimated from Google Maps linework.
Järva, Stockholm County Solna Sweden	Vallgatan / Kolonnvägen (59.38022, 18.00859)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 23.1161	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Järva, Stockholm County Solna Sweden	Råsta Strandväg / Signalbron (59.37249, 18.00357)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.9467	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Järva, Stockholm County Solna Sweden	Råsta Strandväg / Evenemangsgatan (59.37367, 17.99665)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 35.8977	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Jászberény, Jász-Nagykun-Szolnok Jászberényi járás Hungary	Main road 32 (Dózsa György út - Jászteleki út) / Jákóhalmi út (47.50150, 19.92145)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Jefferson, GA Jackson Co. United States	Traditions Way / Cotton Gin Row / Delaperriere Loop (34.09591, -83.69507)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Jefferson, GA Jackson Co. United States	Traditions Way / Sanctuary Way (34.07650, -83.70251)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Jefferson, GA Jackson Co. United States	GA 11 / GA 124 (34.09190, -83.61570)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2012	Painted splitter islands. Year Completed estimated (2011-2013).
Jefferson City, MO Cole Co. United States	Leslie Blvd. / Stadium Blvd. / Lafayette St. (38.56052, -92.17668)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2009-2010).
Jefferson City, MO Cole Co. United States	Ellis Blvd. / Tanner Bridge Rd. (38.55085, -92.18866)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2011	Elliptical shape. ICD = 135 ft x 125 ft. Skewed intersection. Right-turn bypass lane due to skew on west leg. Year Completed estimated (2010-2011).
Jefferson City, MO Cole Co. United States	W Stadium Blvd. / Hard Rock Dr. / (parking lot) (38.57584, -92.21602)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Add-lane right-turn bypass lane on north leg; yield-controlled right-turn bypass lane on west leg.
Jefferson City, MO Cole Co. United States	W Stadium Blvd. / Hyde Park Rd. / (future street) (38.57733, -92.21556)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2010	Fourth leg stubbed.
Jefferson City, MO Cole Co. United States	Central Stadium Blvd. / Jefferson St. (38.56496, -92.18680)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 45.7585	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Jefferson City, MO Cole Co. United States	Mission Dr. / Rolling Hills Dr. / St. Marys Health Center access / (future road) / (future road) (38.56022, -92.21954)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 57.9024	Other (At-Grade) Single-Lane	2013	Access to hospital. ICD estimated from Google Maps linework.
Jefferson City, MO Cole Co. United States	Stoneridge Pkwy. / Hard Rock Dr. (38.57574, -92.22419)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2015	Year Completed estimated (2015-2017).
Jefferson City, MO Cole Co. United States	Old Lohman Rd. / Westview Dr. / Big Horn Dr. (38.56917, -92.28955)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2011	Elliptical shaped. ICD = 140 ft x 120 ft.
Jefferson City, MO Cole Co. United States	E McCarty St. / US 50 EB Ramps / Supercenter Dr. (38.54169, -92.12189)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Freeway Ramps (Grade-Separated) Single-Lane	2009	Yielding right-turn bypass lane with acute view angle on northwest leg. Year Completed estimated (2007-2009).
Jefferson City, MO Cole Co. United States	E McCarty St. / US 50 WB Ramps (38.54432, -92.11960)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2009	Year Completed estimated (2007-2009).
Jefferson Township, OH Franklin Co. United States	Reynoldsburg New Albany Rd. / Havens Rd. (40.02985, -82.81429)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2023	https://www.facebook.com/groups/dullmensclub/posts/1361459861177218/
Jeffersonville, VT Lamoille Co. United States	VT 108 / VT 15 (44.64775, -72.82956)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.5430	Other (At-Grade) Single-Lane	2014	Completion year estimated. ICD estimated from Google Maps linework.
Jeffersonville, IN Clark Co. United States	Port Rd. / IN-265 WB Ramps (38.34491, -85.70012)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 58.0754	Freeway Ramps (Grade-Separated) Single-Lane	2016	Raindrop shape. ICD estimated from Google Maps linework.
Jeffersonville, IN Clark Co. United States	E 10th St. / IN-62 WB Ramps (38.34567, -85.70617)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 54.3280	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Jeffersonville, IN Clark Co. United States	E 10th St. / IN-62 EB Ramps (38.34309, -85.70641)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signal/Beacon	3 Approaches 0 Driveways 65.5707	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)	2015	At-grade rail crossing on south legm with PHBs controlling west and north legs. No pedestrian crossings. ICD estimated from Google Maps linework.
Jekyll Island, GA Glynn Co. United States	GA 520 (Ben Fortson Pkwy.) / N Beachview Dr. (31.04758, -81.41269)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2011	Elliptical shaped. ICD = 135 ft x 125 ft.
Jelgava, Latvia	Loka maģistrāle / Bērzu ceļš (56.67065, 23.74253)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Jelgava, Latvia	Loka maģistrāle / Rubeņu ceļš (56.66083, 23.78495)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Jelgava, Latvia	Loka maģistrāle / Langervaldes iela (56.65650, 23.79418)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Jelgava, Latvia	Rīga-Jelgava-Lietuvas robeža [A8-E77 (Miera iela) / P94 (Miera iela)] (56.62956, 23.75276)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Jenks, OK Tulsa Co. United States	S 1st St. / (parking) (36.01555, -95.96640)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling approach only)	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2017	At-grade rail crossing approximately 270 ft on northwest leg. Year Completed estimated (2016-2017).
Jenks, OK Tulsa Co. United States	S Aquarium Dr. / S 7th St. / Aquarium Dr. / E 101st St. (36.01776, -95.96138)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Single-Lane	2017	TWSC intersection relocated to east. Year Completed estimated (2016-2017).
Jennings, MO St. Louis Co. United States	Wilson Bridge Dr. / Alexandria Place Dr. (38.73354, -90.24449)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Jensen Beach, FL Martin Co. United States	SR 707 (NE Dixie Hwy.) / NE Palmer St. / NE Langford Ln. (27.22321, -80.22038)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2018	Replaced triangular intersection.