Roundabouts Database Index

30293 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
Joensuu, North Karelia Joensuu Finland	Sirkkalansilta / Yläsatamakatu / Rantakatu (62.60331, 29.76792)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Joensuu, North Karelia Joensuu Finland	Suvantokatu / Rantakatu (62.59806, 29.76325)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Joensuu, North Karelia Joensuu Finland	Karjalankatu / Sortavalankatu (62.59743, 29.78597)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Joensuu, North Karelia Joensuu Finland	Kettuvaarantie / Pohjolankatu (62.60302, 29.80404)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Joensuu, North Karelia Joensuu Finland	Noljakantie / Yliopistokatu (62.61455, 29.73176)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Single-Lane
Joensuu, North Karelia Joensuu Finland	Noljakantie / Onttolantie / Marjalantie / Kosti Aaltosen tie (62.62707, 29.69664)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Jodhpur, RJ Jodhpur India	B Rd. / 7th B Rd. (26.27787, 73.00554)	Unknown Existing	Unknown Unknown	5 Approaches 0 Driveways	Other (At-Grade) Unknown
Jihlava, Vysočina Jihlava Czechia	Havlíčkova / Pražská (49.40457, 15.58709)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Jiaoqu District, Heilongjiang Jiamusi China	Hongqi St. / Youyi Rd. Ramps (46.80940, 130.33150)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Xiangyang District, Heilongjiang Jiamusi China	Shengli West Rd. / Hongqi St. (46.78857, 130.35309)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
North Vernon, IN Jennings Co. United States	US 50 / Walnut St. / CR 400 W (38.98696, -85.68113)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2018	https://www.facebook.com/NVPDS/photos/west-end-bypass-roundabout-opens-six-months-after-construction-started-the-new-w/2385364561504366/
North Vernon, IN Jennings Co. United States	US 50 / IN 750 (39.01143, -85.60029)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.3289	Other (At-Grade) Single-Lane	2017	https://www.in.gov/indot/projects/2423.htm . ICD estimated from Google Maps linework.
Metairie Terrace, LA Jefferson Par. United States	Causeway Blvd. (LA 3046) / US 61 (Airline Hwy.) (29.97476, -90.15636)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 107.5965	Other (At-Grade) Unknown		Single-point interchange using one circle. Entire circle is on causeway structure over railroad yards. ICD estimated from Google Maps linework.
Port Ludlow, WA Jefferson County United States	SR 104 / Paradise Bay Rd. / Shine Rd. (47.86767, -122.63923)	Roundabout Existing	All-Way Yield Other	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2025	Drawbridge signal approximately 800 ft to east. https://wsdot.wa.gov/construction-planning/search-projects/sr-104-paradise-bay-shine-road-sr-19-intersection-safety-improvements
Vestavia Hills, AL Jefferson Co. United States	Blue Lake Dr. / Sicard Hollow Rd. / Cahaba Heights Rd. (33.45106, -86.71773)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2025	https://vestaviavoice.com/news/roundabout-opens-at-blue-lake-drive-sicard-hollow-road/
Birmingham, AL Jefferson Co. United States	Liberty Pkwy. / (parking) (33.47619, -86.70359)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2018
Vestavia Hills, AL Jefferson Co. United States	Liberty Pkwy. / Liberty Rd. (33.47421, -86.69406)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2021	Year Completed estimated (2019-2021).
McCalla, AL Jefferson Co. United States	4th Ave. SW (Old Tuscaloosa Hwy.) / Lowetown Rd. (33.29639, -87.06038)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 76.2000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2025	Turbo roundabout. https://www.wbrc.com/2025/02/05/jefferson-county-welcomes-nations-3rd-turbo-roundabout/
Hoover, AL Jefferson Co. United States	Main St. / Creekside Ave. (33.37445, -86.81575)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2006	Right-turn-only arrows on entries. Year Completed estimated (2005-2006).
(unincorporated), CO Jefferson Co. United States	US 40 / CR 65 / I-70 WB Exit Ramp (39.71621, -105.39166)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2024	Year Completed estimated (2023-2024). https://www.codot.gov/projects/i70floydhill/earlyprojects.
Louisville, KY Jefferson Co. United States	Terra Crossing Blvd. / Bush Farm Rd. (38.28006, -85.49789)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2018
Louisville, KY Jefferson Co. United States	James Thornton Way / Wickham Green Way (38.27422, -85.49318)	Other Existing	Uncontrolled None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2009	No splitter island on west leg. Concentric striped circulatory roadway.
Watertown, NY Jefferson Co. United States	Coffeen St. / N Hycliff Dr. / Gaffney Dr. (43.99017, -75.93460)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2022	On campus of Jefferson Community College. Year Completed estimated (2020-2022).
Port Ludlow, WA Jefferson Co. United States	SR 104 / SR 19 (Beaver Valley Rd.) (47.89014, -122.73245)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2024	Through lane bypass on west leg. https://www.facebook.com/groups/porttownsendchat/posts/the-highway-104-and-19-roundabout-is-open-in-all-directions/1440699556614168/?_rdr
Denver, CO Jefferson Co. United States	S Reed St. / S Pierce Way (39.68087, -105.07380)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2017-2018).
Denver, CO Jefferson Co. United States	S Upham St. / S Evans Ave. (39.67841, -105.07776)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2016
Arvada, CO Jefferson Co. United States	W 94th Ave. / Hallett St. (39.86650, -105.22434)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2014
Ranson, WV Jefferson Co. United States	N Fairfax Blvd. / E 13th Ave. (39.30680, -77.85569)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 54.8640	Other (At-Grade) Single-Lane	2019	Peanut shaped. ICD = 180 ft on each end; 530 ft long. Year Completed estimated (2017-2020). This condition is locally known as the "Peanut" and constructed within the historic plat of the city where an oval park was visioned. The peanut shape will support additional approaches as further development occurs. https://www.cityofransonwv.net/149/Fairfax-Boulevard https://www.cityofransonwv.net/DocumentCenter/View/1219/Fairfax-Blvd-Extension---Engineering-Peanut?bidId=
Pine Bluff, AR Jefferson Co. United States	US 63-US 79-SR 15 (Market St.) / Saracen Resort Dr. (34.21292, -91.96112)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 67.0560	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2020	Double left turn on north and south legs.
Port Townsend, WA Jefferson Co. United States	SR 20 / Kearney St. (48.11000, -122.77066)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2023
Fairfield, IA Jefferson Co. United States	SR 1 (S Main St.) / Libertyville Rd. / S Junction Rd. (40.98829, -91.96307)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://www.youtube.com/watch?app=desktop&v=Mabi9suTVMA
Irondale, AL Jefferson Co. United States	Grants Mill Rd. / Old Leeds Rd. / Karl Daly Rd. (33.53524, -86.67353)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2023	https://www.youtube.com/watch?v=idyfwu96hcM
Herculaneum, MO Jefferson Co. United States	McNutt St. / Providence Way (38.25522, -90.40498)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 76.2000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2019	Ellipitcal shaped. ICD = 250 ft x 230 ft. Year Completed estimated (2018-2020).
Herculaneum, MO Jefferson Co. United States	Stone Water Dr. (38.26044, -90.42469)	Other Existing	Unknown Unknown	2 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-Lane
Edgewater, CO Jefferson Co. United States	W 20th Ave. / Harlan St. (39.74762, -105.06264)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://edgewaterecho.com/2022/01/new-roundabout-at-20th-and-harlan-opening-tuesday-february-1/
Watertown, NY Jefferson Co. United States	Park Circle (43.96723, -75.88971)	Other Existing	Other Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Mix of stop and yield control.
Watertown, NY Jefferson Co. United States	Gaffney Dr. / Commerce Park Dr. / Western Blvd. (43.98164, -75.94248)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2020
McCalla, AL Jefferson Co. United States	Old Tuscaloosa Hwy. / McAdory School Rd. (33.33566, -87.01218)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2022	https://www.youtube.com/watch?v=GS7xX-8KUkc
Edgewater, CO Jefferson Co. United States	W 20th Ave. / Benton St. (39.74763, -105.05562)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2022	Elliptical shaped. ICD = 100 ft x 85 ft.
Whisper Creek, CO Jefferson Co. United States	W 87th Dr. / W 87th Ln. (39.85326, -105.15802)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Whisper Creek, CO Jefferson Co. United States	W 87th Dr. / W 87th Terrace (39.85449, -105.15278)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Edgewater, CO Jefferson Co. United States	Pierce St. / W 24th Ave. (39.75123, -105.07204)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://edgewaterecho.com/2022/03/new-roundabout-open-at-24th-avenue-and-pierce-street/
Charles Town, WV Jefferson Co. United States	Prospect Hill Blvd. / Butler St. (39.26299, -77.87787)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Charles Town, WV Jefferson Co. United States	Ball Circle (39.26676, -77.87701)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Charles Town, WV Jefferson Co. United States	Haversack Circle (39.27053, -77.84909)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Harpers Ferry, WV Jefferson Co. United States	Gap View Blvd. / Gap View Blvd. (39.33462, -77.80635)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Harpers Ferry, WV Jefferson Co. United States	Gap View Blvd. / Gap View Cir. (39.33013, -77.80121)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Buechel, KY Jefferson Co. United States	Meeting St. (38.32910, -85.56720)	Other Existing	Unknown Unknown	6 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Buechel, KY Jefferson Co. United States	Beechspring Farm Blvd. / Creekton Dr. (38.30690, -85.61487)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Westminster, CO Jefferson Co. United States	Circle Point Rd. (39.89729, -105.07433)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Pamelia, NY Jefferson Co. United States	US 11 / Mill St. / (parking) (43.99425, -75.90456)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	Replaced stop-controlled, scissors-type intersection. https://www.wwnytv.com/2021/12/07/traffic-flowing-around-route-11-roundabout/
Festus, MO Jefferson Co. United States	Victoria Falls Dr. / Niagara Falls Ct. (38.22449, -90.44699)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands on three legs.
Imperial, MO Jefferson Co. United States	Amberleigh Pkwy. / Amber Meadows Dr. / Amber View Dr. (38.40708, -90.44771)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Pedestrian access to central island.
Lakewood, CO Jefferson Co. United States	S. Allison Pkwy. / W. Virginia Ave. (39.70705, -105.08390)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways 33.9964	Other (At-Grade) Single-Lane	2000	Functional Class: Local ICD estimated from Google Maps linework.
Columbine, CO Jefferson Co. United States	S. Simms St. / Nelson St. (39.64159, -105.12910)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 38.6271	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Right turn bypass lanes on three legs. ICD estimated from Google Maps linework.
Madras, OR Jefferson Co. United States	SE Grizzly Rd. / SE J St. / SE City View Rd. / (future leg) (44.62504, -121.10943)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 54.4017	Other (At-Grade) Single-Lane	2007	Sized for conversion to ultimate double-lane. Bear sculpture in central island. ICD estimated from Google Maps linework.
Madras, OR Jefferson Co. United States	SE City View St. / SE Yarrow Ave. / (future leg) (44.63084, -121.10905)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.3963	Other (At-Grade) Single-Lane	2007	Sized for conversion to ultimate double-lane. Raptor sculpture in central island. ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	Arbutus Dr. / Red Rocks Community College (39.71903, -105.14840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.7465	Other (At-Grade) Single-Lane	2001	Functional Class: Collector ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	Allison Pkwy. / Civic Center (39.70906, -105.08630)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 31.2390	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	Arbutus Dr. / W. 2nd Pl. (39.71649, -105.14750)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.5609	Other (At-Grade) Single-Lane	2001	Functional Class: Collector ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	S. Golden Rd. / Johnson Rd. / 16th St. (39.74207, -105.20060)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.6526	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Functional Class: Arterial ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	S. Golden Rd. / Lunnonhaus Dr. (39.74062, -105.19840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Small two-lane roundabout but with nontraversable central island.
Golden, CO Jefferson Co. United States	S. Golden Rd. / Utah St. (39.73919, -105.19620)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.8782	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	S. Golden Rd. / Ulysses St. (39.73771, -105.19390)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.5734	Other (At-Grade) Single-Lane	1998	Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Main entrance to shopping center. Functional Class: Arterial ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	Jefferson County Pkwy. / Civic Center (39.72717, -105.19940)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.9051	Other (At-Grade) Single-Lane	2000	Feeds parking lot ICD estimated from Google Maps linework.
Columbine, CO Jefferson Co. United States	S. Simms St. / W. Quincy Ave. (39.63865, -105.12860)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.0301	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	S. Golden Rd. / Ford St. / Jackson St. (39.74612, -105.20940)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 52.3432	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Functional Class: Arterial ICD estimated from Google Maps linework.
Port Townsend, WA Jefferson Co. United States	SR 20 (Sims Way) / Howard St. / Evans Vista (48.10260, -122.80500)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2010	April 2010.
Port Townsend, WA Jefferson Co. United States	SR 20 (Sims Way) / Thomas St. (48.10333, -122.79891)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2010	July 2010.
Watertown, WI Jefferson Co. United States	E Horseshoe Rd. / CTH T (43.19009, -88.76381)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.2185	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Watertown, WI Jefferson Co. United States	E Horseshoe Rd. / CTH A (Milford St.) (43.16401, -88.76087)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.2014	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Watertown, WI Jefferson Co. United States	E Horseshoe Rd. / Jefferson Rd. (43.15839, -88.74851)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.3640	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Watertown, WI Jefferson Co. United States	Jefferson Rd. / CTH Y (43.15325, -88.75062)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5944	Other (At-Grade) Single-Lane	2010	Near railroad crossing. ICD estimated from Google Maps linework.
Watertown, WI Jefferson Co. United States	CTH Y (S Church St.) / STH 26 NB Ramps (43.15562, -88.74126)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.7217	Freeway Ramps (Grade-Separated) Single-Lane	2011	ICD estimated from Google Maps linework.
Watertown, WI Jefferson Co. United States	CTH Y (S Church St.) / STH 26 SB Ramps (43.15450, -88.74223)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.3362	Freeway Ramps (Grade-Separated) Single-Lane	2011	ICD estimated from Google Maps linework.
Watertown, WI Jefferson Co. United States	BUS 26 (S Church St.) / High Rd. (43.16088, -88.73526)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.8169	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	ICD estimated from Google Maps linework.
Watertown, WI Jefferson Co. United States	W Main St. (STH 19) / STH 26 NB Ramps (43.19772, -88.76607)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.3091	Freeway Ramps (Grade-Separated) Single-Lane	2010	ICD estimated from Google Maps linework.
Watertown, WI Jefferson Co. United States	W Main St. (STH 19) / STH 26 SB Ramps (43.19772, -88.76804)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.6971	Freeway Ramps (Grade-Separated) Single-Lane	2010	ICD estimated from Google Maps linework.
Applewood, CO Jefferson Co. United States	W. 32nd Ave. / Eldridge St. (39.76180, -105.15660)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 29.3790	Other (At-Grade) Single-Lane	2005	North leg serves golf course parking lot. ICD estimated from Google Maps linework.
Evergreen, CO Jefferson Co. United States	CR 65 / Bergen Pkwy. (39.69101, -105.36050)	Roundabout Existing	Unknown Unknown	3 Approaches 1 Driveways 26.6520	Other (At-Grade) Single-Lane	1998	ICD estimated from Google Maps linework.
Harpers Ferry, WV Jefferson Co. United States	Koonce Road / Private Road (39.31484, -77.78628)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.1129	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Louisville, KY Jefferson Co. United States	Trevilian Way / Louisville Zoo Entrance (38.20764, -85.70862)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 26.2772	Other (At-Grade) Single-Lane	2009	Oblong shape. ICD estimated from Google Maps linework.
Whitewater, WI Jefferson Co. United States	Burr Oak Trl. / N Acorn Ridge (42.85569, -88.74258)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.6434	Other (At-Grade) Single-Lane	2007	Opened October 2007. Functional Class: Local ICD estimated from Google Maps linework.
Whitewater, WI Jefferson Co. United States	Burr Oak Trl. / (unknown) (42.85222, -88.74105)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.7695	Other (At-Grade) Single-Lane	2007	Opened November 2007. Functional Class: Local ICD estimated from Google Maps linework.
Littleton, CO Jefferson Co. United States	S Union Ct. / S Ida Ave. (39.61175, -105.13316)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.0433	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Littleton, CO Jefferson Co. United States	S Zang St. / Robert Easton Park (39.60735, -105.14731)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.6044	Other (At-Grade) Single-Lane	2006	3rd leg added around 2012, Built for future 4th Leg. ICD estimated from Google Maps linework.
Birmingham, AL Jefferson Co. United States	Liberty Pkwy. / Lake Pkwy. (33.47937, -86.67624)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.8928	Other (At-Grade) Single-Lane	2000	Year Completed estimated (1998-2002). ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	Lamar St. / W 14th Ave. (39.73850, -105.06733)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2014	Fire station driveway at end of radius on northwest corner.
Ixonia, WI Jefferson Co. United States	STH 16 / American St. (CTH F) (43.14647, -88.59080)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 47.0551	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Steubenville, OH Jefferson Co. United States	Lovers Ln. / Fort Steuben Dr. (40.36706, -80.67710)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 26.3892	Other (At-Grade) Single-Lane	2017	First roundabout in Eastern Ohio and ODOT District 11. ICD estimated from Google Maps linework.
Louisville, KY Jefferson Co. United States	Stony Farm Dr. / Stara Way (38.19654, -85.59588)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.3426	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Beckly, KY Jefferson Co. United States	Shelby Station Dr. / (unknown) (38.23829, -85.49049)	Other Existing	Other None	4 Approaches 0 Driveways 26.2662	Other (At-Grade) Single-Lane		No yield signs on major street. ICD estimated from Google Maps linework.
Barnhart, MO Jefferson Co. United States	Metropolitan Blvd. / Marriott Ln. / (unknown) / I-55 SB On-ramp (38.34633, -90.39727)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.5939	Freeway Ramps (Grade-Separated) Single-Lane	2010	Year Completed estimated (2010-2011). ICD estimated from Google Maps linework.
Arnold, MO Jefferson Co. United States	Astra Way / Missouri State Rd. (38.44301, -90.40168)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1589	Other (At-Grade) Single-Lane	2012	Located approximately 220 feet from traffic signal. https://patch.com/missouri/fenton-highridge/new-traffic-roundabout-to-be-built-on-hwy-141-between4fb74fd68b . ICD estimated from Google Maps linework.
(unincorporated), MO Jefferson Co. United States	13th St. / Winding Bluffs Dr. (38.48406, -90.44573)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7865	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017). ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	W Dartmouth Pl. / W Cornell Pl. / (high school access) (39.66034, -105.10813)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.2611	Other (At-Grade) Single-Lane	2006	https://www.denverpost.com/2006/08/03/on-the-side-84/ . ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	Illinois St. / (unknown) (39.73540, -105.21057)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.5747	Other (At-Grade) Single-Lane	2002	Minimal splitter islands. No detectable warnings for the one pedestrian crossing. ICD estimated from Google Maps linework.
Arvada, CO Jefferson Co. United States	W 66th Ave. / W 66th Dr. (39.81516, -105.17026)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.6867	Other (At-Grade) Single-Lane	2007	Located 35 feet from adjacent stop-controlled intersection. No buffers between sidewalk and circulatory roadway. ICD estimated from Google Maps linework.
Westminster, CO Jefferson Co. United States	Reed St. / Promenade Dr. / (parking lot) (39.88726, -105.07719)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.7403	Other (At-Grade) Single-Lane	2004	Wapiti Circle (statue of small elk herd) installed in center island in 2005 -- https://www.waymarking.com/waymarks/WMDRJH_Wapiti_Circle_Westminster_CO . ICD estimated from Google Maps linework.
Hoover, AL Jefferson Co. United States	Preserve Pkwy. / (unknown) (33.38298, -86.83674)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 33.9074	Other (At-Grade) Single-Lane	2006	Two future legs planned but no splitter islands built yet. Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.