Roundabouts Database Index

29410 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
Guatemala City, Guatemala Guatemala Guatemala	Anillo Periférico / (unknown) (14.62255, -90.56021)	Other Existing	All-Way Stop Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x2 max)
Guatemala City, Guatemala Guatemala Guatemala	27 Avenida / (unknown) (14.62179, -90.56131)	Other Existing	Other Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x1 max)		Circulating traffic yields to entering traffic on east leg.
Davenport, IA Scott Co. United States	Leclaire St. / E 2nd St. (41.52114, -90.56831)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2024	Located underneath railroad bridge and connecting to lower deck of bridge over river. https://www.kwqc.com/video/2024/08/09/rock-island-arsenal-davenport-update-progress-government-bridge-traffic-circle/
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 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).
Mixco, Guatemala Mixco Guatemala	(unknown) (14.64746, -90.60516)	Other Existing	Unknown Unknown	6 Approaches 0 Driveways	Other (At-Grade) Unknown		Parking along circulatory roadway.
Mixco, Guatemala Mixco Guatemala	(unknown) (14.64871, -90.60538)	Other Existing	Unknown Unknown	6 Approaches 0 Driveways	Other (At-Grade) Unknown		Parking along circulatory roadway.
Wildwood, MO St. Louis Co. United States	Old Fairway Dr. / Nantucket Island Dr. (38.56696, -90.61728)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 16.8088	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Wildwood, MO St. Louis Co. United States	Old Fairway Dr. / Roaring Fork Dr. / (school access) (38.56734, -90.61948)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.1469	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Wildwood, MO St. Louis Co. United States	Old Fairway Dr. / Elderberry Ln. (38.57910, -90.61965)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.0099	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Wildwood, MO St. Louis Co. United States	Old Fairway Dr. / Waterside Dr. (38.57311, -90.62062)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.8135	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Wildwood, MO St. Louis Co. United States	Manchester Rd. / Village Hills Pkwy. / Taylor Rd. (38.57818, -90.62749)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.4797	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2002-2003). ICD estimated from Google Maps linework.
Wildwood, MO St. Louis Co. United States	MO 109 / Pond Grover Loop Rd. (38.59084, -90.64046)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.6729	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	Year Completed estimated (2014-2015). ICD estimated from Google Maps linework.
Wildwood, MO St. Louis Co. United States	MO 109 / MO 100 WB Ramps / Windsor Meadow Blvd. (38.58501, -90.64241)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.2771	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2014	ICD estimated from Google Maps linework.
Wildwood, MO St. Louis Co. United States	MO 109 / MO 100 EB Ramps (38.58348, -90.64292)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	Year Completed estimated (2019-2020).
Wildwood, MO St. Louis Co. United States	MO 109 / Main St. (38.58163, -90.64350)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	Year Completed estimated (2019-2020).
Jonesboro, AR Craighead Co. United States	N Airport Rd. / Aggie Rd. (35.84631, -90.65022)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2016
Chesterfield, MO St. Louis Co. United States	N Outer 40 Rd. / I-64 WB Exit Ramp (38.67582, -90.65115)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Freeway Ramps (Grade-Separated) Single-Lane	2010	Year Completed estimated (2009-2010).
Dubuque, IA Dubuque Co. United States	Kerper Blvd. / Kerper Ct. (42.51518, -90.65500)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2023	https://www.kwwl.com/video/kerper-boulevard-roundabout-now-open-in-dubuque/video_c96b5eb0-5305-5b6f-8b06-be51094e84b7.html
Cottleville, MO St. Charles Co. United States	Gutermuth Rd. / (unknown) (38.73697, -90.66532)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020
Cottleville, MO St. Charles Co. United States	Gutermuth Rd. / MO 364 WB Ramps (38.73583, -90.66567)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2020	https://www.stltoday.com/suburban-journals/stcharles/portion-of-gutermuth-to-close-for-route-364-interchange-construction/article_392e1870-c917-5df1-82ab-d83cceca50b8.html
Jonesboro, AR Craighead Co. United States	SR 163 (Harrisburg Rd.) / SR 158 (E Lawson Rd.) (35.74871, -90.66603)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 56.3880	Other (At-Grade) Single-Lane	2021	https://www.kait8.com/2021/06/22/new-roundabout-use-south-jonesboro/
Cottleville, MO St. Charles Co. United States	Gutermuth Rd. / MO 364 EB Ramps (38.73394, -90.66626)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2020	https://www.stltoday.com/suburban-journals/stcharles/portion-of-gutermuth-to-close-for-route-364-interchange-construction/article_392e1870-c917-5df1-82ab-d83cceca50b8.html
Weldon Spring, MO St. Charles Co. United States	Technology Dr. / Meadows Pkwy. / Wolfrum Rd. / I-64 WB Exit Ramp (38.70526, -90.67410)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Freeway Ramps (Grade-Separated) Single-Lane		Oval shaped. ICD = 200 ft x 180 ft. Built initially as 2x2 roundabout in 2005-2006. Concentric circulatory roadway striping. Converted to single lane using by striping out inner circulatory roadway lane and left entry lane on southwest leg 2020-2021.
Lancaster, WI Grant Co. United States	US 61-STH 35 / STH 81 (42.81577, -90.68369)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2023
Dubuque, IA Dubuque Co. United States	N Grandview Ave. / Delhi St. / Grace St. (42.49682, -90.68791)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 20.2537	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Dubuque, IA Dubuque Co. United States	N Grandview Ave. / University Ave. (42.49832, -90.68817)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.9396	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Weldon Spring, MO St. Charles Co. United States	Weldon Spring Rd. / Technology Dr. / Siedentop Rd. (38.71551, -90.68906)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2004	Painted splitter island on east leg. Year Completed estimated (2003-2004).
O'Fallon, MO St. Charles Co. United States	Technology Dr. / Progress Point Pkwy. / (parking) (38.71685, -90.69499)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2002-2003).
O'Fallon, MO St. Charles Co. United States	Technology Dr. / Waterbury Falls Dr. (38.71843, -90.69627)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2002-2003). Southwest leg added 2008-2009.
O'Fallon, MO St. Charles Co. United States	Phoenix Pkwy. / Redhawk Pkwy. / Red Hawk Pl. (38.74510, -90.73630)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5341	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1996-2002). ICD estimated from Google Maps linework.
O'Fallon, MO St. Charles Co. United States	Phoenix Pkwy. / Phoenix Dr. / Boardwalk Place Dr. (38.74122, -90.73747)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5359	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1996-2002). ICD estimated from Google Maps linework.
O'Fallon, MO St. Charles Co. United States	Connecting Rd. / Alta Mira Ct. / MO 364 WB Ramps (38.76954, -90.74393)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2014
O'Fallon, MO St. Charles Co. United States	Hwy DD / Dalriada Blvd. (38.74631, -90.75882)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Single-Lane	2022	Right-turn-only lanes on southwest and northeast legs. Appears to be convertible to 2x1. https://www.sccmo.org/DocumentCenter/View/18378/OF_HIGHWAY-DD
Dubuque, IA Dubuque Co. United States	US 52 (SW Arterial - Seippel Rd.) / Chesterfield Dr. / US 20 EB ramps (42.47403, -90.75987)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2020	https://www.telegraphherald.com/news/tri-state/article_25dde05e-920f-5330-8d6f-356d16812f2d.html
Houma, LA Terrebonne Par. United States	Westside Blvd. / Enterprise Dr. (29.60658, -90.76499)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.4206	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	http://www.providenceeng.com/projects/terrebonne-parish-roundabout ICD estimated from Google Maps linework.
Maurepas, LA Livingston Par. United States	LA-16 / LA-22 (30.26014, -90.76844)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 29.9163	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Lake St Louis, MO St. Charles Co. United States	Lake Saint Louis Blvd. / Veteran's Memorial Pkwy. / I-70 EB Ramps (38.80322, -90.77073)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 67.0560	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)	2022
O'Fallon, MO St. Charles Co. United States	Springhurst Pkwy. / Spring Borough Dr. (38.76123, -90.77537)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 39.6240	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2007).
Sparta, WI Monroe Co. United States	STH 16 / STH 71 / Hardwood Rd. (43.94078, -90.78544)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.7996	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Portland, WI Monroe Co. United States	STH 27 / STH 33 (43.74201, -90.79387)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2016
O'Fallon, MO St. Charles Co. United States	Preston Woods Pkwy. / Preston Woods Trl. / Flowering Ash Ln. (38.74881, -90.79714)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2008-2009).
O'Fallon, MO St. Charles Co. United States	Paul Renaud Blvd. / Lake St Louis Blvd. / Curtis Ln. (38.75382, -90.80034)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2017-2018).
Thibodaux, LA Lafourche Par. United States	Ardoyne Rd. / Audubon Ave. (29.78934, -90.80550)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	On Nicholls State University campus. https://www.facebook.com/HoumaTimes/posts/check-it-out-the-new-roundabout-on-campus-is-open-enjoy-this-how-to-video-from-n/2529969010358873/
Wentzville, MO St. Charles Co. United States	Prospect Rd. / Corporate Pkwy. / I-64 WB Exit Ramp (38.79597, -90.81810)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Freeway Ramps (Grade-Separated) Single-Lane	2008	Interchange replaced single at-grade intersection. Year Completed estimated (2008-2009).
Wentzville, MO St. Charles Co. United States	Prospect Rd. / I-64 EB Exit Ramp (38.79596, -90.82043)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6717	Freeway Ramps (Grade-Separated) Single-Lane	2008	Interchange replaced single at-grade intersection. Year Completed estimated (2008-2009).
Sparta, WI Monroe Co. United States	S Black River St. (STH 27) / River Rd. (43.93267, -90.82053)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.4248	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Gilmore, MO St. Charles Co. United States	Glengarry Ct. / Kellerton Pl. (38.79542, -90.84653)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Gilmore, MO St. Charles Co. United States	Village Glen Dr. / Glengarry Dr. (38.79407, -90.84755)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Peosta, IA Dubuque Co. United States	Peosta St / NICC Dr (42.44531, -90.84966)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 103.1146	Other (At-Grade) Single-Lane	2012	Entrance to Northeast Iowa Community College ICD estimated from Google Maps linework.
Port Vincent, LA Livingston Par. United States	LA 16 (Petes Hwy.) / LA 447 (Walker South Rd.) (30.35577, -90.84991)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2022
Gilmore, MO St. Charles Co. United States	Luetkenhaus Blvd. / Main Plaza Dr. / Wall St. / (parking) (38.82013, -90.85000)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2012).
Port Vincent, LA Ascension Par. United States	LA-28 / LA-431 (30.33152, -90.85329)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 29.8945	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Gilmore, MO St. Charles Co. United States	S Church St. / I-70 WB Ramps (38.80639, -90.85441)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.2920	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2016	Year Completed estimated (2015-2016).
Walker, LA Livingston Par. United States	Walker South Rd. / I-12 WB Ramps (30.47242, -90.86272)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 42.2038	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Walker, LA Livingston Par. United States	Walker South Rd. / I-12 EB Ramps (30.46773, -90.86314)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 43.2352	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Wentzville, MO St. Charles Co. United States	Wilmer Valley Dr. / Wilmer Ridge Dr. (38.79278, -90.86444)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2675	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Viroqua, WI Vernon Co. United States	US 14-US 61 / STH 27-STH 82 / CR T (43.52202, -90.86531)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Single-Lane	2023	Elliptical shaped. ICD = 170 ft x 155 ft.
Gilmore, MO St. Charles Co. United States	Pine Creek Dr. / Pine Creek Ct. (38.83970, -90.86642)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Flint Hill, MO St. Charles Co. United States	CR P / US 61 NB Ramps / Service Rd. (38.85292, -90.86827)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.6445	Freeway Ramps (Grade-Separated) Single-Lane	2018	Under construction (almost finished) Aug 2018 (streetview) ICD estimated from Google Maps linework.
Wentzville, MO St. Charles Co. United States	Schroeder Creek Blvd. / William Dierberg Dr. (38.82018, -90.86907)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.0819	Other (At-Grade) Single-Lane	2016	Paving was done in late 2016, but fully completed in 2017 -- https://www.wentzvillemo.org/departments/public_works/schroeder_creek_boulevard_extension_project.php . ICD estimated from Google Maps linework.
Wentzville, MO St. Charles Co. United States	Schroeder Creek Blvd. / (high school access) (38.81649, -90.86931)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.9451	Other (At-Grade) Single-Lane	2016	Paving was done in late 2016, but fully completed in 2017 -- https://www.wentzvillemo.org/departments/public_works/schroeder_creek_boulevard_extension_project.php . ICD estimated from Google Maps linework.
Sorrento, LA Ascension Par. United States	LA 22 / LA 70 (30.16658, -90.88120)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	https://eminetra.com/newly-finished-roundabout-in-sorrento-one-of-many-planned-in-ascension-parish-ascension-new-orleans-louisiana/9042/
Prairieville, LA Ascension Par. United States	Timberstone Dr. / Devall Rd. / Tigers Eye Stone Ave. (30.29926, -90.89318)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2008
Denham Springs, LA Livingston Par. United States	Juban Rd. (LA 1026) / Buddy Ellis Rd. (30.45957, -90.91627)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Multilane (2 Lane, unspecified)	2021	Year Completed estimated (2021-2022).
Gonzales, LA Ascension Par. United States	Conway Village Blvd. / Parkside Way / Village Oaks Ave. (30.18106, -90.91760)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2019).
Denham Springs, LA Livingston Par. United States	Crossing Way / Crossing Circle (30.46747, -90.91999)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.2059	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	ICD estimated from Google Maps linework.
Gonzales, LA Ascension Par. United States	LA 44 / Conway Village Blvd. / Waterview Ave. (30.18121, -90.92016)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	Year Completed estimated (2019-2021).
Denham Springs, LA Livingston Par. United States	Juban Crossing Blvd. / (parking) (east) (30.46981, -90.92104)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2014
Denham Springs, LA Livingston Par. United States	Juban Crossing Blvd. / (parking) (west) (30.46981, -90.92283)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2014
Denham Springs, LA Livingston Par. United States	Lockhart Rd. / Dunn Rd. (30.50500, -90.92494)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 35.0520	Other (At-Grade) Single-Lane	2020	Year Completed estimated (2019-2021).
Denham Springs, LA Livingston Par. United States	US 190 / Eden Church Rd. (30.48333, -90.92654)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 42.1990	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Denham Springs, LA Livingston Par. United States	Lockhart Rd. / Cockerham Rd. / Linder Rd. (30.50846, -90.93534)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.8983	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	https://www.livingstonparishnews.com/new-roundabout/youtube_e2ce3f06-169f-11e8-bddf-bb3b21456b5b.html ICD estimated from Google Maps linework.
Prairieville, LA Ascension Par. United States	SR 929 / Parker Rd. (30.31358, -90.93913)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://www.weeklycitizen.com/story/news/local/2023/11/22/roundabout-near-new-prairieville-high-school-opens-to-traffic-ascension-parish-officials/71682751007/
Union, MO Franklin Co. United States	Denmark Rd. / Saint Andrews Dr. (38.43079, -90.95348)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-lane w/ Traversable Central Island	2018	https://www.emissourian.com/local_news/union/denmark-road-opens-to-traffic-project-is-nearly-finished/article_c0073fff-d446-5b9b-be14-d1bfef9abd1d.html
Barksdale, WI Bayfield Co. United States	STH 13 / US 2 WB Ramps (46.58774, -90.95454)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.9645	Freeway Ramps (Grade-Separated) Single-Lane	2012	ICD estimated from Google Maps linework.
Prairieville, LA Ascension Par. United States	LA 930 / Henry Rd. (30.30593, -90.95578)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://moveascension.com/projects/ma-18-08/
Troy, MO Lincoln Co. United States	S Lincoln Dr. / Bueneman Ln. / US 61 NB Ramps (38.96739, -90.95594)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 39.9296	Freeway Ramps (Grade-Separated) Single-Lane	2013	ICD estimated from Google Maps linework.
Troy, MO Lincoln Co. United States	S Lincoln Dr. / US 61 SB Ramps (38.96664, -90.95804)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 43.6444	Freeway Ramps (Grade-Separated) Single-Lane	2013	ICD estimated from Google Maps linework.
Troy, MO Lincoln Co. United States	S Lincoln Dr. / S 3rd St. / Old Moscow Mills Rd. (38.96606, -90.95936)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.3592	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Puerto Villamil, Galápagos Cantón Isabela Ecuador	Antonio Gil / Pepino (-0.95869, -90.96267)	Unknown Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Unknown
Union, MO Franklin Co. United States	Prairie Dell Rd. / Denmark Rd. (38.43101, -90.97237)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2015	Yield-controlled right-turn bypass lane with large radius on north leg. Entrance to college campus.
Holy Cross, IA Dubuque Co. United States	US 52 / Holy Cross Rd. (42.59513, -90.98652)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	https://www.dyersvillecommercial.com/news/roundabout-completed-outside-of-holy-cross/image_abf4ba03-bd15-5801-928e-39c6e5ff2bfb.html
Union, MO Franklin Co. United States	Independence Dr. / N Washington Ave. (MO A) (38.46062, -91.01237)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.9265	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2012-2013). https://www.unionmissouri.org/document_center/talk_of_the_town_winter_2013.pdf ICD estimated from Google Maps linework.
Union, MO Franklin Co. United States	Independence Dr. / W Main St. (38.44642, -91.02549)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.7385	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2012-2013). https://www.unionmissouri.org/document_center/talk_of_the_town_winter_2013.pdf ICD estimated from Google Maps linework.
Baton Rouge, LA East Baton Rouge Par. United States	Stumberg Ln. / Womans Way (30.38264, -91.03593)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 59.4360	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2012	Year Completed estimated (2011-2013).
Baton Rouge, LA East Baton Rouge Par. United States	Lovett Rd. / (Magnolia Square subdivision) (30.52095, -91.03818)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 18.5192	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Brownsfield/Central, LA East Baton Rouge Par. United States	Sullivan Rd. / Gurney Rd. / (school access) (30.56124, -91.04099)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.7673	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Muscatine, IA Muscatine Co. United States	Mulberry Ave. / 2nd St. (41.42371, -91.04141)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.youtube.com/watch?v=nyJfLuvBF_A
Wright City, MO Warren Co. United States	Lexington Ave. / Sturbridge Dr. (38.81909, -91.04345)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands.
Brownsfield/Central, LA East Baton Rouge Par. United States	Gurney Rd. / Joor Rd. (30.56104, -91.04840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.7105	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Muscatine, IA Muscatine Co. United States	Cedar St. / Logan St. (41.43575, -91.06473)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.7570	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Baton Rouge, LA East Baton Rouge Par. United States	The Grove Blvd. / (parking) (30.38708, -91.07573)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2018
Baton Rouge, LA East Baton Rouge Par. United States	Lobdell Ave. / Government St. / Independence Blvd. (30.44534, -91.11159)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2020	Add-lane right-turn bypass lanes on east, west, and south legs; yielding right-turn bypass lane on north leg. https://www.wafb.com/2020/07/29/new-roundabout-government-lobdell-causing-headache-some-drivers/.
Prairie du Chien, WI Crawford Co. United States	S Marquette Rd. / E Iowa St. (43.04911, -91.14094)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling approach only)	4 Approaches 0 Driveways 41.8934	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	Series of three roundabouts. Nearby at-grade rail crossing. ICD estimated from Google Maps linework.
Prairie du Chien, WI Crawford Co. United States	S Marquette Rd. / E Wisconsin St. (43.05037, -91.14098)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling approach only)	4 Approaches 0 Driveways 33.1649	Other (At-Grade) Single-Lane	2014	Series of three roundabouts. Nearby at-grade rail crossing. ICD estimated from Google Maps linework.
Prairie du Chien, WI Crawford Co. United States	S Marquette Rd. / E Blackhawk Ave. (43.05193, -91.14100)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling approach only)	4 Approaches 0 Driveways 40.1459	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	Series of three roundabouts. Nearby at-grade rail crossing. ICD estimated from Google Maps linework.
Highlands/Perkins, LA East Baton Rouge Par. United States	River Rd. / L'Auberge Crossing Dr. (30.34331, -91.14428)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 53.5976	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Dyersville, IA Delaware Co. United States	CR X49 (332nd Ave.) / W 1st Ave. / 210th St. (42.48441, -91.14450)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.dyersvillecommercial.com/news/new-roundabout-officially-open/image_90cf973c-23eb-59eb-9a68-62a9bf4de883.html
Highlands/Perkins, LA East Baton Rouge Par. United States	L'Auberge Ave. / River Rd. (east) (30.34668, -91.14825)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 53.5957	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.