Roundabouts Database Index

29679 Results

Search by location, intersection, and comments with the Quick Search below. You can search all other attributes by clicking Advanced Search. Sort results by clicking the headers of any column. Click the Intersection name for a details and aerial view. Search results pages can be bookmarked. Results can be exported to KML for viewing in Google Earth.

City, State County Country	Intersection (Lat, Lng)	Type Status	Control Type / Other Control Type	Approaches / Driveways / ICD (m)	Functional Class / LaneType	Year Completed	Comments
Flower Mound, TX Denton Co. United States	Chinn Chapel Rd. / Dixon Ln. (33.06646, -97.08794)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2012	.
Austin, TX Travis Co. United States	Davis Ln. / Leo St. (30.19038, -97.82537)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2014	.
Austin, TX Travis Co. United States	Keepsake Dr. / Empress Blvd. (30.18869, -97.81841)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2003	.
Austin, TX Travis Co. United States	Keepsake Dr. / Dulcet Dr. (30.18818, -97.81580)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2003	.
Eisenhower East, VA Alexandria City United States	Eisenhower Ave. / Holland Ln (38.80044, -77.06079)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)		0
Glenwood Springs, CO Garfield Co. United States	Mel Ray Rd. / I-70 EB Ramps / Midland Ave. / Riverine Rd. (39.56019, -107.36139)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.9595	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2006	1 of 2 at Exit 114 on I-70, observed under construction in 2005. ICD estimated from Google Maps linework.
Kennewick, WA Benton Co. United States	19th Ave. / Union St. (46.19220, -119.18040)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.2832	Other (At-Grade) Single-Lane	2003	1/3 mile from school, primary bus and traffic route for the school, on school walking route, has adult crossing guards. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Fenton, MI Genesee Co. United States	North Rd. / Torrey Rd. / (gas station access) (42.80472, -83.72443)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.6687	Other (At-Grade) Single-Lane	2019	100-ft inscribed circle diameter. Opened November 2019. https://www.thelascopress.com/2019/11/fentons-first-roundabout-is-open-for-business/ . ICD estimated from Google Maps linework.
Saskatoon, SK Saskatchewan Canada	Innovation Blvd. / Downey Rd. (52.14021, -106.62809)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 34.4508	Other (At-Grade) Single-Lane		16 parking spaces around the circle. ICD estimated from Google Maps linework.
Glendale, AZ Maricopa Co. United States	(Glendale Heroes Regional Park road) / (parking) (33.52526, -112.23376)	Other Existing	Other None	3 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2022	18' wide circulating lane, including bike lane. No splitter islands other than painted areas flush to the pavement surface. One approach has no yield control.
Tallmadge, OH Summit Co. United States	Tallmadge Circle (North Ave. / Northeast Ave. / East Ave. / Southeast Ave. / South Ave. / Southwest Ave. / West Ave. / Northwest Ave.) (41.10138, -81.44121)	Rotary Existing	All-Way Yield None	8 Approaches 10 Driveways 59.3989	Other (At-Grade) Single-Lane	1807	1807 is the year it was built, but as a square. Unknown when it took present form. Some history here: https://www.ohio.com/akron/lifestyle/local-history-tallmadge-circle-is-center-of-creation ICD estimated from Google Maps linework.
Issaquah, WA King Co. United States	19th Ave. NW / NW Gilman Blvd. (47.54571, -122.06644)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 21.7667	Other (At-Grade) Single-Lane		19th Ave legs have painted splitter islands. Completed 2008 or earlier (streetview). ICD estimated from Google Maps linework.
Lethbridge, AB Alberta Canada	Garry Dr. / Squamish Blvd. (49.69084, -112.89540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 58.7195	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	2 lanes E-W, 1 lane N-S ICD estimated from Google Maps linework.
Baraboo, WI Sauk Co. United States	CR W / US 12 WB Ramps (43.45996, -89.77719)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 51.8160	Freeway Ramps (Grade-Separated) Single-Lane	2014	2 new roundabouts at ramp terminals on new bypass project.
West Baraboo, WI Sauk Co. United States	Linn St. / US 12 EB Ramps (43.47476, -89.77598)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 51.8160	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2017	2 new roundabouts at ramp terminals on new bypass project.
West Baraboo, WI Sauk Co. United States	Linn St. / US 12 WB Ramps (43.47482, -89.77414)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 51.8160	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2017	2 new roundabouts at ramp terminals on new bypass project.
Baraboo, WI Sauk Co. United States	CR W / US 12 EB Ramps (43.46004, -89.77893)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Freeway Ramps (Grade-Separated) Single-Lane	2017	2 new roundabouts at ramp terminals on new bypass project.
Santa Monica, CA Los Angeles Co. United States	26th St. / Washington Ave. (34.03876, -118.48070)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.8041	Other (At-Grade) Single-Lane	2005	20,000 ADT on 26th, 2000 on Washington Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Turlock, CA Stanislaus Co. United States	N Berkeley Ave. / Dancer Way (37.53472, -120.83029)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2006	2007 or earlier (SV)
Lund, Skåne County Lund Municipality Sweden	Vikingavägen / Norrängavägen / Emblas gata (55.69412, 13.24157)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane		2007 or earlier completion.
Mossle, Jönköping County Värnamo Sweden	Halmstadsvägen / Gröndalsleden / Lundbyvägen (57.18135, 14.00697)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Single-Lane	2008	2008 or earlier
Arlington, TX Tarrant Co. United States	Calender Rd. / Kuykendall Dr. (32.63263, -97.15398)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 30.4800	Other (At-Grade) Single-Lane	2022	2020-2022 (SV)
Brighton, CO Adams Co. United States	Longs Peak St. / Bowie Dr. / N 46th Ave. (39.99239, -104.75969)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2021	2022 or earlier (SV)
Lakes by The Bay, FL Miami-Dade Co. United States	SW 216th St. / SW 97th Ave. (25.56658, -80.34580)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	2x1 roundabout.
Hilliard, OH Franklin Co. United States	Wilcox Rd. / Riggins Rd. (40.06279, -83.14831)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	2x1 roundabout. ICD = 160 ft in one-lane section, 180 feet in two-lane section.
Brno, South Moravia Brno - město Czechia	Kamenice / Netroufalky / Akademická (49.17802, 16.56736)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		2x1 turbo roundabout.
Raleigh, NC Wake Co. United States	Alexander Promenade Pl. / Unknown St. (35.91392, -78.77933)	Other Existing	Other Unknown	4 Approaches 0 Driveways 23.2149	Other (At-Grade) Single-Lane	2003	3 Yield, One Stop ICD estimated from Google Maps linework.
Desert View, AZ Maricopa Co. United States	E Lone Cactus Dr. / N Aviano Way (33.68254, -111.99673)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2007	30 foot wide single, circulating lane and absent of a truck apron. Year Completed estimated (2006-2007).
Duncan, BC Cowichan Valley Canada	Kingsview Rd. / Nevilane Dr. (48.79787, -123.62230)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 29.8956	Other (At-Grade) Single-Lane	2008	3rd approach stubbed off. Year Completed estimated (2006-2010). 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.
Lisbon, Lisbon Lisboa Portugal	Rua de São Jorge / Avenida de Álvares Cabral / Rua João Anastácio Rosa (38.71579, -9.15871)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		3rd street is one way out of roundabout
Colonie, NY Albany Co. United States	Sand Creek Rd. / Colonie Ct. (42.71318, -73.80853)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.3670	Other (At-Grade) Single-Lane	2008	4 legs, one for planned future road. Completion year of 2008 is approximate. Functional Class: Minor Arterial ICD estimated from Google Maps linework.
Greeley, CO Weld Co. United States	Promontory Cir. / W. 16th St. (40.41505, -104.85090)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	4 roundabouts in series; 6 in vicinity.
Greeley, CO Weld Co. United States	Promontory Cir. / Con Agra Dr. (40.41138, -104.85200)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	4 roundabouts in series; 6 in vicinity.
Greeley, CO Weld Co. United States	Promontory Cir. / W 18th St. (40.40869, -104.85120)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6717	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	4 roundabouts in series; 6 in vicinity.
Greeley, CO Weld Co. United States	Promontory Cir. / W 11th St. (40.41889, -104.84990)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.1960	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	4 roundabouts in series; 6 in vicinity.
Duncan, BC Cowichan Valley Canada	Kingsview Rd. / Donnay Dr. (48.79786, -123.64314)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.1088	Other (At-Grade) Single-Lane	2013	4th approach stubbed off. ICD estimated from Google Maps linework.
Baltimore, MD Baltimore City Co. United States	Old Frederick Road / Maple Wood Road (39.29094, -76.69283)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.8815	Other (At-Grade) Single-Lane	2013	4th leg not built yet - for future development ICD estimated from Google Maps linework.
East Central, UT Salt Lake Co. United States	900 S / 1100 E / E Gilmer Dr. (40.74978, -111.85950)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 25.3340	Other (At-Grade) Single-Lane	2019	5-leg compact. Speed tables on entry. Bottom of very steep hill. 5th leg needs widening to Gilmer Dr. 10 ft Bike Trail connects to it. Next to East High School site of Disney's High School Musical Movies and TV series. ICD estimated from Google Maps linework.
West Jordan, UT Salt Lake Co. United States	6265 W (Fall Oak Dr.) / Fall Water Dr. / 7965 W (40.60635, -112.03860)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 47.1501	Other (At-Grade) Single-Lane	2019	5-leg roundabout first in West Jordan City. ICD estimated from Google Maps linework.
Richland, WA Benton Co. United States	Steptoe Dr. / SR 240 EB Ramps / Columbia Park Trl. (46.23893, -119.24546)	Roundabout Existing	All-Way Yield Metering Signal	5 Approaches 0 Driveways 49.5635	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2007	5th leg is on-ramp to SR 240. Opened November 2007. Lane configuration reduced in 2016. Modified in 2018 to add metering signal. According to local news (link below) they started metering the traffic on the westbound Columbia Park Trail approach in 2018. It only turns on when traffic coming off the freeway gets backed up. https://97rockonline.com/tri-cities-roundabout-gets-new-metered-traffic-light-wait-what/ 21442
Trnava, Trnava Region Trnava Slovakia	I/61 (Zelenečská- Tamaškovičova) / 9. mája / Dohnányho (48.36651, 17.58804)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane		9. mája is one-way westbound
Kingston, NY Ulster Co. United States	I-587 / Rte 28 / I-87 Ramps / Washington Ave. (41.94362, -74.02840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max)	2000	A 600 ft diameter traffic circle was replaced by 200 ft diameter roundabout. At Exit 19 from I-87. I-587 terminates in roundabout.
Koloa, HI Kauai Co. United States	SR 530 (Koloa Rd.) / Ala Kalanikaumaka (21.90635, -159.47038)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 45.7200	Other (At-Grade) Single-Lane	2021	A fourth leg is planned at the north side of this roundabout, but that probably won't be until at least 2030.
Santo Domingo Oeste, Santo Domingo Dominican Republic	Avenida Luperon / Avenida 27 de Febrero (18.44976, -69.97512)	Signalized Roundabout/Circle Existing	Signal None	4 Approaches 0 Driveways 242.4496	Other (At-Grade) Multilane (3+ Lane)		A landmark of Santo Domingo. The Flag Park (center island) has been the location of many historical events. It currently holds the biggest flag in the country. ICD estimated from Google Maps linework.
Dublin, OH Union Co. United States	Hyland-Croy Rd. / Glacier Ridge Blvd (40.15634, -83.18476)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.9484	Other (At-Grade) Single-Lane	2006	A school nearby and park on the other side. Previously controlled by stop control side street Functional Class: Arterial/Residential ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	N 70th Pl. / E Chaparral Rd. (33.50954, -111.92900)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2016	A traffic calming circle was completed in 2002 on what was otherwise a TWSC intersection. Roundabout constructed in 2016. On south leg there is no entry into the roundabout but instead a yield-controlled right-turn bypass lane to prevent northbound-to-westbound cut-through traffic.
Colchester, England Essex United Kingdom	North Station Roundabout [A134 / B1508 / Mile End Rd.] (51.90096, 0.89509)	Signalized Roundabout/Circle Existing	Signal Unknown	5 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		A134 bypasses through central island.
Corning, NY Steuben Co. United States	Robert Dann Blvd. / Aurene Dr. / Creekside Dr. (42.16506, -77.11484)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.7216	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Access permits for research and development plant. ICD estimated from Google Maps linework.
Greenville, WI Outagamie Co. United States	CTH CB / W Atlantis Dr. (44.26708, -88.50676)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 59.4360	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	Access to airport.
Westchester, NY Westchester Co. United States	Airport Rd. / Rye Lake Rd. (41.07284, -73.70593)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.5131	Other (At-Grade) Single-Lane	2006	Access to airport. ICD estimated from Google Maps linework.
Talkeetna, AK Matanuska-Susitna Borough United States	E Kesugi Ken Dr. / (unknown) (62.60097, -150.22817)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2016	Access to Alaska State Park campground, third (south) leg for future expansion. Year Completed estimated (2013-2016).
Lørenskog, Viken Lørenskog Norway	Solheimveien / Skårersletta (59.92813, 10.95345)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane		Access to bus terminal.
Lees Summit, MO Jackson Co. United States	NE Blackwell Rd. / NE Chipman Rd. / (parking lot) (38.92333, -94.31850)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.0961	Other (At-Grade) Single-Lane	2010	Access to church parking lot. Year Completed estimated (2009-2010). ICD estimated from Google Maps linework.
(unincorporated), GA Cherokee Co. United States	River Ridge High School access / parking access (34.11611, -84.47916)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 140.4079	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Access to high school. 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.
Junction City, KS Geary Co. United States	K-18 / Blue Jay Way / Karns Dr. (39.03013, -96.88229)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Single-Lane	2022	Access to Junction City High School. https://kveng.com/news/junction-city-high-school-project-updates/
Federal Way, WA King Co. United States	S 317th St. / 11th Pl. S (47.31677, -122.31839)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2016	Access to multifamily housing, public streets.
Waukee, IA Dallas Co. United States	NW Sunrise Dr. / NW 6th St. / (parking) (41.62216, -93.88667)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2021	Access to school. https://www.waukee.org/194/Capital-Improvement-Projects
Phoenix, AZ Maricopa Co. United States	E Madison St. / (parking) (33.44625, -111.98911)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2011	Accommodates WB-67 truck deliveries to the Phoenix Sky Train terminal. Part of Phoenix Sky Harbor off-site parking facility. Year Completed estimated (2011-2012).
Sept-Îles, QC Sept-Rivières Canada	Rue Smith / Rue Comeau (50.22375, -66.37588)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 60.3655	Other (At-Grade) Single-Lane		According to the article below, this was converted from a rotary to roundabout in 2011 (but no apparent geometric changes). https://ici.radio-canada.ca/nouvelle/682505/carrefour-rond-point-sept-iles [Translation note: French has two terms for circular intersections: rond-point and carrefour giratoire. According to the article, the former term means rotary (traffic in circle yields) and the latter means roundabout (entering traffic yields). However, Google Translate translates them both as 'roundabout', making for a confusing article if you don't refer back to the original French.] ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Conestoga Rd. / Kraus Dr. (43.49983, -80.52906)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2009	Add lane right-turn bypass lane on west leg.
Vacaville, CA Solano Co. United States	Vanden Rd. / Leisure Town Rd. (38.31717, -121.94312)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2017	Added lane right-turn bypass lanes on west and south legs.
Medford, MA Middlesex Co. United States	Highland Ave. / Woodland Rd. / Elm St. (42.44247, -71.09392)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.3400	Other (At-Grade) Single-Lane	2015	Added roundabout style pavement markings on approaches and definition of circulating roadway in approx. 2015. Right-turn-only lane and two-lane exit on north leg.
Gloucester Township, NJ Camden Co. United States	Zimmerman Rd. / Premuim Outlets Dr. (39.78762, -75.05079)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 36.7099	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Additional westbound through lane added during 2011-2016 period. ICD estimated from Google Maps linework.
Cranberry Township, PA Butler Co. United States	Cranberry Springs Dr. / Cool Springs Dr. (40.68728, -80.09240)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 45.2817	Other (At-Grade) Single-Lane	2015	Add-lane bypass lanes in two quadrants. ICD estimated from Google Maps linework.
North Las Vegas, NV Clark Co. United States	Moonlight Falls Ave. / Midnight Falls St. (36.30951, -115.19364)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2004	Add-lane bypass lanes on all four legs. Year Completed estimated (2004-2005).
Opole, Opolskie Opole Poland	Rondo Ronalda Regana [Kazimierza Sosnkowskiego / Wiejska] (50.67324, 17.96112)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane		Add-lane bypass lanes on all legs.
Ann Arbor, MI Washtenaw Co. United States	Geddes Rd. / US 23 SB Ramps (42.27450, -83.67833)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.2440	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2011	Add-lane right-turn bypass lane in northwest quadrant.
Duncan, BC Cowichan Valley Canada	Green Rd. / (shopping center parking lot) (48.79946, -123.71861)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.6813	Other (At-Grade) Single-Lane	2009	Add-lane right-turn bypass lane on east leg. Year Completed estimated (2006-2012). ICD estimated from Google Maps linework.
Byron, GA Peach Co. United States	Centerville Rd. / Walker Rd. / John E Sullivan Rd. (32.60656, -83.75755)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2014	Add-lane right-turn bypass lane on east leg. Year Completed estimated (2013-2015).
Las Vegas (Summerlin), NV Clark Co. United States	Village Center Dr. / Meadow Hills Dr. (36.19350, -115.30070)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 59.4360	Other (At-Grade) Multilane (2 Lane, 2x1 max)	1991	Add-lane right-turn bypass lane on north leg.
Glenview, IL Cook Co. United States	Patriot Blvd. / (parking) (42.10673, -87.82186)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-lane w/ Traversable Central Island	2023	Add-lane right-turn bypass lane on north leg. https://www.glenview.il.us/index.php?section=newsroom&prrid=5
Blaine, MN Anoka Co. United States	99th Ave. NE / Baltimore St. NE (45.14987, -93.23354)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2023	Add-lane right-turn bypass lane on north leg. https://www.youtube.com/watch?v=HgVsQEb1_00
Rio Rancho, NM Sandoval Co. United States	Loma Colorado Blvd. NE / (parking) (35.26261, -106.67142)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2010	Add-lane right-turn bypass lane on north leg. Year Completed estimated (2009-2011).
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.
Wildwood, FL Sumter Co. United States	Meggison Rd. / Bexley Trl. / Marilee Pl. (28.78888, -81.96811)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 64.0080	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2020	Add-lane right-turn bypass lane on northwest leg. Year Completed estimated (2019-2022).
Kennett, MO Dunklin Co. United States	US 412 / CR VV / Kennett St. (36.22581, -90.05759)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 59.4360	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2016	Add-lane right-turn bypass lane on south leg.
Liberty, MO Clay Co. United States	S Stewart Rd. / (parking) (39.24344, -94.45337)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5277	Other (At-Grade) Single-Lane	2016	Add-lane right-turn bypass lane on south leg.
Georgetown, KY Scott Co. United States	Outer Ring Rd. / Team Services Way (38.24794, -84.53523)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2016	Add-lane right-turn bypass lane on south leg. Merging right-turn bypass lane on north leg with acute entry angle.
Chaska, MN Carver Co. United States	Big Woods Blvd. / US 212 WB Off-Ramp (44.79113, -93.63390)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2020	Add-lane right-turn bypass lane on south leg. Year Completed estimated (2019-2020).
Tumwater, WA Thurston Co. United States	93rd Ave. SW / Lathrop Industrial Dr. (46.95285, -122.94231)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	Add-lane right-turn bypass lane on south leg. Year Completed estimated (2021-2022).
Slidell, LA St. Tammany Par. United States	Oak Harbor Blvd. / E Howze Beach Rd. (30.21894, -89.77929)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2021	Add-lane right-turn bypass lane on southeast leg and northeast leg..
Lévis, QC Lévis Canada	Rue de Saint-Denis / Rue de Bernières (46.69436, -71.30060)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.0000	Other (At-Grade) Single-Lane	2019	Add-lane right-turn bypass lane on southeast leg. Southwest leg stubbed.
Malta, NY Saratoga Co. United States	Stonebreak Rd. / Luther Forest Blvd. (42.96551, -73.75795)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2012	Add-lane right-turn bypass lane on southeast leg. Year Completed estimated (2011-2013). Southeast leg added 2015-2018.
Marshfield, MO Webster Co. United States	N Marshall Rd. / CR CC / I-44 EB Ramps (37.36485, -92.90724)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Freeway Ramps (Grade-Separated) Single-Lane	2020	Add-lane right-turn bypass lane on southwest leg.
Miami, FL Miami-Dade Co. United States	SR 972 (SW 3rd Ave.-SW 13th St.) / SW 3rd Ave. / Broadway (SW 15 Rd.) (25.76158, -80.19918)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2023	Add-lane right-turn bypass lane on southwest leg. https://www.youtube.com/watch?v=tpUJl5s5mfk.
Cedar Rapids, IA Linn Co. United States	6th St. SW / Innovation Dr. / St Martin Blvd. SW (41.89632, -91.67617)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Other (At-Grade) Single-Lane	2023	Add-lane right-turn bypass lane on west leg.
Erwin, NY Steuben Co. United States	Robert Dann Dr. / Science Center Rd. (42.15936, -77.11082)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2001	Add-lane right-turn bypass lane on west leg.
Northfield Township, MI Washtenaw Co. United States	W 8 Mile Rd. / US 23 SB Ramps (42.42923, -83.76779)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2017	Add-lane right-turn bypass lane on west leg.
Slinger, Village of, WI Washington Co. United States	CTH C (Hillsdale Rd.) / American Eagle Dr. (43.32600, -88.24102)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.2284	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Add-lane right-turn bypass lane on west leg. ICD estimated from Google Maps linework.
Lady's Island, SC Beaufort Co. United States	SC-802 (Sams Point Rd.) / Brickyard Point Rd. / Holly Hall Rd. (32.44562, -80.63971)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.3790	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	Add-lane right-turn bypass lane on west leg. ICD estimated from Google Maps linework.
Toledo, OH Lucas Co. United States	Millard Ave. / Tiffin St. (41.67453, -83.47456)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.9120	Other (At-Grade) Single-Lane	2020	Add-lane right-turn bypass lane on west leg. Year Completed estimated (2019-2021).
D'Iberville, MS Harrison Co. United States	MS Hwy 15 / Lamey Bridge Rd. (30.49431, -88.90603)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2018	Add-lane right-turn bypass lane on west leg; yield-controlled right-turn bypass lanes on north and south legs. Fatal crash Monday February 7, 2022: https://www.sunherald.com/news/local/counties/harrison-county/article258139973.html
Glen Allen, VA Henrico Co. United States	Greenwood Rd. / Woodman Rd. (37.67146, -77.48272)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2020	Add-lane right-turn bypass lane on west leg; yield-controlled right-turn-only lane on south leg. https://www.facebook.com/henricova/videos/159967112559967/?redirect=false
Guaynabo, PR Santa Rosa United States	Carretera 837 (Avenida Santa Rosa) / Calle Cecilio Urbina (18.35793, -66.11529)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2013	Add-lane right-turn bypass lanes on all legs.
Red Oak, TX Ellis Co. United States	Harmony Way / Grand Meadow Blvd. (32.53842, -96.82920)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2022	Add-lane right-turn bypass lanes on all legs. Two-lane pedestrian crossings across all entries and exits.
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/.
Homestead, FL Miami-Dade Co. United States	Saint Nazaire Blvd. / SW 127th Ave. (25.50248, -80.39611)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2020	Add-lane right-turn bypass lanes on north and west legs.
East Wenatchee, WA Douglas Co. United States	Grant Rd. / Airport Way / Urban Industrial Dr. (47.40592, -120.20780)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2010	Add-lane right-turn bypass lanes on north and west legs. July 2010.