Roundabouts Database

30375 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
Tallahassee, FL
Leon Co.
United States 		Weems Rd. / Dartmouth Dr.
(30.45770, -84.22234) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
20.5903 		Other (At-Grade)
Single-Lane 		2020 ICD estimated from Google Maps linework.
Troy, AL
Pike Co.
United States 		University Ave. / Luther Dr.
(31.79906, -85.95933) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		2010 Year Completed estimated (2010-2011). Luther Dr is called International Blvd on Google Maps. ICD estimated from Google Earth.
Troy, AL
Pike Co.
United States 		McKinley Dr. / Luther Dr.
(31.80401, -85.95713) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2010 Painted splitter islands on three legs; no splitter island on southeast leg. Year Completed estimated (2010-2011). Google Maps claims this is the intersection of International Blvd and Veterans Memorial Dr. ICD estimated from Google Earth.
Clarkdale, AZ
Yavapai Co.
United States 		Scenic Dr. / Alamos Dr.
(34.74635, -112.04608) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2012). Initially completed with painted splitter islands. Raised splitter islands added 2012-2014.
Rancho Cucamonga, CA
San Bernardino Co.
United States 		Terra Vista Pkwy. / Aspen Ave.
(34.10923, -117.57130) 		Other
Existing 		All-Way Stop
Unknown 		3 Approaches
0 Driveways
34.6104 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Los Angeles, CA
Los Angeles Co.
United States 		Ignation Cir. / Loyola Blvd.
(33.96856, -118.41666) 		Other
Existing 		Other
Unknown 		3 Approaches
0 Driveways
21.7912 		Other (At-Grade)
Single-Lane 		Located at Loyola Marymount University. Two stop signs, one uncontrolled. ICD estimated from Google Maps linework.
Playa Vista, CA
Los Angeles Co.
United States 		Fountain Park Dr. / EA Way
(33.97449, -118.42916) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
20.7993 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Playa Vista, CA
Los Angeles Co.
United States 		Runway Rd.
(33.97676, -118.41661) 		Other
Existing 		Uncontrolled
Unknown 		3 Approaches
0 Driveways
13.8658 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Cedar Rapids, IA
Linn Co.
United States 		Stoney Point Rd. NW / E Ave. NW
(41.97858, -91.75502) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2019 https://kwwl.com/2019/08/16/stoney-point-rd-reopens-after-months-welcoming-cedar-rapids-4th-roundabout/
Anderson, SC
Anderson Co.
United States 		Brown Rd. / Kings Rd. / Frances Cannon Dr.
(34.56968, -82.66937) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
23.6029 		Other (At-Grade)
Single-Lane 		2018 Intersection moved about 100 ft south; Frances Cannon Dr rerouted to the roundabout. Truck apron takes up almost the entire center island. https://www.independentmail.com/story/news/local/2017/12/28/roundabouts-coming-anderson-two-years-after-they-were-announced/871867001/ ICD estimated from Google Maps linework.
Lewiston Orchards, ID
Nez Perce Co.
United States 		Powers Ave. / Thain Rd. / 14th St.
(46.36927, -116.96010) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
14.8337 		Other (At-Grade)
Single-Lane 		2017 Opened November 3, 2017. https://lmtribune.com/northwest/roundabout-draws-a-yellow-flag/article_137af938-33cf-51a8-b75e-5c38559e8800.html ICD estimated from Google Maps linework.
Woodbury, MN
Washington Co.
United States 		Bailey Lake Rd. / Copper Ridge Dr.
(44.88115, -92.93047) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.5433 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Windsor, CO
Larimer Co.
United States 		Cherry Blossom Dr. / Blackwood Dr.
(40.45061, -104.94835) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
21.8122 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Windsor, CO
Larimer Co.
United States 		Cherry Blossom Dr. / Stone Chase Dr.
(40.45095, -104.95728) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
22.7210 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Winston-Salem, NC
Forsyth Co.
United States 		Rams Dr. / Bruce St. / Old Stadium Dr.
(36.09045, -80.22660) 		Other
Existing 		All-Way Stop
Unknown 		4 Approaches
0 Driveways
27.9886 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway. ICD = 110 ft. ICD estimated from Google Maps linework.
Winston-Salem, NC
Forsyth Co.
United States 		Giannini Dr.
(36.07618, -80.23623) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
45.3690 		Other (At-Grade)
Single-Lane 		Oval shape. University of North Carolina School of the Arts. ICD = 180 ft x 150 ft. ICD estimated from Google Maps linework.
Manteo, NC
Dare Co.
United States 		SR 1128 (Sir Walter Raleigh St.) / SR 1130 (Bideford St.)
(35.90418, -75.67849) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		2009 Painted splitter islands.
Raleigh, NC
Wake Co.
United States 		Falls Valley Dr. / Greenway St.
(35.89732, -78.60629) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
22.2522 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2002-2005). ICD estimated from Google Maps linework.
O'Fallon, IL
St. Clair Co.
United States 		Milburn School Rd. / Old Collinsville Rd.
(38.61444, -89.96636) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.7290 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Onalaska, WI
La Crosse Co.
United States 		Sand Lake Rd. / County Hwy OT
(43.92355, -91.23538) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2019
Fairview Heights, IL
St. Clair Co.
United States 		Dunhill Dr. / Northshore Dr.
(38.61012, -89.97116) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.7309 		Other (At-Grade)
Single-Lane 		2006 No splitter islands. ICD estimated from Google Maps linework.
Ao Fu Shi, Su Du Di Qu

Iceland 		Rte 38 / Rte 427
(63.86300, -21.39095) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
36.3026 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Ge Lin Da Wei Ku Zhen, Lei Ka Nei Si

Iceland 		Rte 43 / Gerðavellir
(63.84535, -22.43505) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Ge Lin Da Wei Ku Zhen, Lei Ka Nei Si

Iceland 		Hópbraut / Sudurhóp
(63.84791, -22.42748) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
28.4260 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Ge Lin Da Wei Ku Zhen, Lei Ka Nei Si

Iceland 		Hópsbraut / Etrahóp
(63.84770, -22.42216) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
23.1621 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Lei Ke Ya Nei Zhen, Lei Ka Nei Si

Iceland 		Rte 41 / Flugbraut
(63.98030, -22.56156) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
34.0553 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Lei Ke Ya Nei Zhen, Lei Ka Nei Si

Iceland 		Njarðarbraut / Bolafótur / Sjávargata
(63.98440, -22.54938) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
28.2880 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Lei Ke Ya Nei Zhen, Lei Ka Nei Si

Iceland 		Njarðarbraut / Borgarvegur
(63.98684, -22.54902) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
25.1427 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Lei Ke Ya Nei Zhen, Lei Ka Nei Si

Iceland 		Bolafótur / Hjallavegur
(63.98847, -22.56361) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Lei Ke Ya Nei Zhen, Lei Ka Nei Si

Iceland 		Rte 41 / Rte 424
(63.99029, -22.57863) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
48.1842 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Lei Ke Ya Nei Zhen, Lei Ka Nei Si

Iceland 		Rte 41 (Reykjanesbraut) / Adalgata
(63.99710, -22.58925) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
49.2197 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Jia Du Shi, Lei Ka Nei Si

Iceland 		Rte 41 / Rte 45 / Rte 429
(64.00285, -22.60241) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
37.6924 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Lei Ke Ya Nei Zhen, Lei Ka Nei Si

Iceland 		Rte 45 / Rte 423 / Hringbraut
(64.01683, -22.58543) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1968 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Si Ka Fu Ta Shi, Su Du Di Qu

Iceland 		Rte 1 / Rte 203
(63.79456, -18.03988) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
35.3361 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
A Ku Lei La Zhen, Nuo Du Di Qu Yi Dong

Iceland 		Rte 1 / Stapabraut
(65.69973, -18.14093) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
43.2510 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Las Vegas, NV
Clark Co.
United States 		Summerlin Centre Dr. / Sagemont Dr. / Cape Cod Landing Dr. / Carleton Mills Dr.
(36.15376, -115.34035) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2005-2006).
Las Vegas, NV
Clark Co.
United States 		Plaza Centre Dr. / Sagemont Dr.
(36.15634, -115.34419) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2006 One leg has no splitter island. Year Completed estimated (2005-2006).
Las Vegas, NV
Clark Co.
United States 		Park Vista Dr. / Vista Center Dr. / Vista Run Dr.
(36.16161, -115.34478) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Single-Lane 		2003 Clock tower in central island.
Las Vegas, NV
Clark Co.
United States 		Desert Moon Rd. / Fox Hill Dr. / Desert Sunrise Rd.
(36.16339, -115.36230) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2005).
Las Vegas, NV
Clark Co.
United States 		Fox Hill Dr. / Paseo Breeze Dr.
(36.16713, -115.36480) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2012).
Las Vegas, NV
Clark Co.
United States 		Fox Hill Dr. / Beautiful Vista Ln.
(36.17373, -115.36476) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2014
La Quinta, CA
Riverside Co.
United States 		Eisenhower Dr. / Calle Sinaloa
(33.67254, -116.30801) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2014 Elliptical shape. ICD = 125 ft x 105 ft. Year Completed estimated (2013-2014).
Palm Desert, CA
Riverside Co.
United States 		Avenue of the States / California Dr. / Michigan Dr.
(33.74085, -116.30647) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2016 Parallel parking along circulatory roadway. Year Completed estimated (2015-2016).
Palm Desert, CA
Riverside Co.
United States 		College Dr. / Pacific Ave.
(33.78350, -116.36543) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2006-2009).
Palm Desert, CA
Riverside Co.
United States 		College Dr. / Technology Dr.
(33.78010, -116.35956) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2006-2009).
Palm Desert, CA
Riverside Co.
United States 		College Dr. / University Park Dr.
(33.77712, -116.35736) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2006-2009).
Scottsdale, AZ
Maricopa Co.
United States 		N 124th St. / E Cactus Rd.
(33.59690, -111.81336) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.9080 		Other (At-Grade)
Single-Lane 		2015
Dove Mountain Resort, AZ
Pima Co.
United States 		N Dove Mountain Blvd. / N Secret Springs Dr.
(32.46698, -111.10013) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2002
Gainesville, FL
Alachua Co.
United States 		SW 77th Ave. / SW 85th Dr. / SW 78th Ln.
(29.58316, -82.43249) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2005).
Homestead, FL
Miami-Dade Co.
United States 		SW 152nd Ave. W / NE 9th Ct.
(25.47867, -80.44219) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2008 Year Completed estimated (2007-2009). [Google Maps says it's NE 10th Ct]
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.
Irvine, CA
Orange Co.
United States 		(parking lot)
(33.63050, -117.72818) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane
Irvine, CA
Orange Co.
United States 		Protocol / (parking lot)
(33.63098, -117.73184) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane
Rancho Santa Margarita, CA
Orange Co.
United States 		Auto Center Dr. / (parking lot)
(33.64100, -117.60714) 		Other
Existing 		Other
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Mix of uncontrolled and stop-signs
Aliso Viejo, CA
Orange Co.
United States 		Antares / (parking lot)
(33.58578, -117.73300) 		Other
Existing 		Uncontrolled
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Aliso Viejo, CA
Orange Co.
United States 		Woodcrest Ln. / Alder Dr.
(33.58374, -117.73886) 		Other
Existing 		All-Way Stop
Unknown 		3 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Natick, MA
Middlesex Co.
United States 		Natick Mall Rd. / (parking lots)
(42.30191, -71.38212) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.7334 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019). ICD estimated from Google Maps linework.
Nuuk (Godthab), Greenland

Greenland 		400-Rtalik / Sipisaq Kanilleq
(64.18160, -51.72219) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
19.2457 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Nuuk (Godthab), Greenland

Greenland 		Aqqusinersuaq / 400-Rtalik
(64.17024, -51.73026) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
18.7332 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Aleksandrów Łódzki, Woj. Łódzkie
Powiat Zgierski
Poland 		ulica Słowiańska / ulica Panska / ulica Koscielna / ulica Aleksandrowska
(51.78946, 19.32078) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
32.5052 		Other (At-Grade)
Single-Lane 		https://www.huffpost.com/entry/roundabout-crash-flying-car_n_5e968401c5b6ead140048120 ICD estimated from Google Maps linework.
Fort Pierce, FL
St. Lucie Co.
United States 		S Indian River Dr. / Citrus Ave.
(27.44443, -80.32228) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
25.9080 		Other (At-Grade)
Single-Lane 		2007 Driveway added 2019.
Covington, GA
Newton Co.
United States 		Perimeter College driveway
(33.60535, -83.75550) 		Other
Existing 		Uncontrolled
None 		2 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2006-2008).
Hilton Head Island, SC
Beaufort Co.
United States 		Coligny Circle (Forest Beach Dr. / Pope Ave.)
(32.14239, -80.75164) 		Rotary
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
115.8240 		Other (At-Grade)
Single-Lane
Shipyard, SC
Beaufort Co.
United States 		Shipyard Dr. / Evan Way / Cordillo Pkwy.
(32.15491, -80.74470) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
65.5320 		Other (At-Grade)
Single-Lane 		Mix of stop and yield control.
Palmetto Dunes, SC
Beaufort Co.
United States 		Hotel Circle (Queens Folly Rd. / Mooring Buoy / Ocean Ln.)
(32.16807, -80.71940) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
64.0080 		Other (At-Grade)
Single-Lane
Hilton Head Island, SC
Beaufort Co.
United States 		Haig Point Ct. / (unknown)
(32.17314, -80.76981) 		Other
Existing 		Other
Unknown 		3 Approaches
0 Driveways
85.3440 		Other (At-Grade)
Single-Lane
Waikoloa, HI
Hawaii Co.
United States 		Mauna Lani Dr. / Kaniku Dr.
(19.93999, -155.85740) 		Rotary
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
100.5840 		Other (At-Grade)
Single-Lane 		Crosswalks are much further away from the circle than at typical roundabout.
Nampa, ID
Canyon Co.
United States 		Robinson Rd. / E Victory Rd.
(43.57596, -116.49388) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019).
Las Vegas, NV
Clark Co.
United States 		S Grand Canyon Pkwy. / (parking lots)
(36.11311, -115.30900) 		Other
Existing 		Other
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		Mix of stop and yield control.
Las Vegas, NV
Clark Co.
United States 		Mesa Park Dr. / S Town Center Dr.
(36.09061, -115.32584) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2006
Las Vegas, NV
Clark Co.
United States 		Mesa Park Dr. / W Russell Rd.
(36.08370, -115.32039) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2007-2008). Fourth leg added 2014-2015. 21442
Las Vegas, NV
Clark Co.
United States 		W Russell Rd. / Cascante Rd. / (school access)
(36.08448, -115.31799) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Single-Lane 		2008 Two legs completed 2007-2008. Third leg added 2011-2012. School access added 2012-2014. 21442
Las Vegas, NV
Clark Co.
United States 		Mesa Park Dr. / Sky Post Rd. / Sky Post Way
(36.07500, -115.31850) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
65.5320 		Other (At-Grade)
Single-Lane 		2016
Las Vegas, NV
Clark Co.
United States 		S Hualapai Way / Regency Summit Ave.
(36.06702, -115.31516) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
65.5320 		Other (At-Grade)
Single-Lane 		2016 Right-turn-only lane on north leg.
Las Vegas, NV
Clark Co.
United States 		W Maule Ave. / Trail Ridge Dr.
(36.06289, -115.30960) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
65.5320 		Other (At-Grade)
Single-Lane 		2016
Tampa, FL
Hillsborough Co.
United States 		S Beneficial Dr. / Harbour Passage Way
(27.93143, -82.44988) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		1997 Year Completed estimated (1995-1998).
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.
London, ON
Middlesex
Canada 		Raleigh Blvd. / Tillmann Rd.
(42.93469, -81.30829) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
110.0000 		Other (At-Grade)
Single-Lane 		2010 completed 2010 based on Google historical aerials
London, ON
Middlesex
Canada 		Morgan Ave. / Morgan Crescent / Singleton Ave.
(42.93441, -81.27261) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2011 Year Completed estimated (2009-2011). Splitter islands added 2015.
London, ON
Middlesex
Canada 		Singleton Ave. / Morgan Ave.
(42.93793, -81.27158) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2012).
London, ON
Middlesex
Canada 		Evans Blvd. / Meadowgate Blvd.
(42.95077, -81.17398) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2006-2009).
London, ON
Middlesex
Canada 		Meadowgate Blvd. / Reardon Blvd.
(42.96234, -81.18034) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2002-2006).
London, ON
Middlesex
Canada 		Coronation Dr. / Carriage Way
(42.99640, -81.32622) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2006
London, ON
Middlesex
Canada 		Coronation Dr. / Lawson Rd.
(42.99659, -81.32142) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2006-2009).
London, ON
Middlesex
Canada 		Brunswick Ave. / Coronation Dr.
(42.99836, -81.32060) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2006
London, ON
Middlesex
Canada 		Callingham Dr. / Meadowlands Way
(43.03489, -81.29534) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2010-2013). Splitter islands added 2016-2019. (streetview) 21442
Waterloo, ON
Waterloo
Canada 		Davenport Rd. / Old Abbey Rd. / (shopping center)
(43.49957, -80.52551) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.0000 		Other (At-Grade)
Single-Lane 		2012 Right-turn-only leg on north leg. Year Completed estimated (2011-2012).
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.
Waterloo, ON
Waterloo
Canada 		Hagey Blvd. / Frank Trompa Dr.
(43.47734, -80.54814) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (before 2005).
Centreville, IL
St. Clair Co.
United States 		SR 13 / SR 157
(38.55853, -90.09956) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Single-Lane 		2008
Brownsburg, IN
Hendricks Co.
United States 		Hornaday Rd. / CR 300N
(39.80708, -86.38169) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019
Brownsburg, IN
Hendricks Co.
United States 		Airport Rd. (CR 400N) / Northfield Dr.
(39.82194, -86.37069) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019
Iowa City, IA
Johnson Co.
United States 		Sycamore St. / Lehman Ave.
(41.62058, -91.51211) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2014-2016).
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).
Houston, TX
Harris Co.
United States 		Dover Ave. / Moline St.
(29.68365, -95.28025) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
54.8637 		Other (At-Grade)
Single-Lane 		No splitter islands. Oval shape. ICD 180 ft x 130 ft.
Houston, TX
Harris Co.
United States 		Joplin St. / Poplar St.
(29.68898, -95.28702) 		Other
Existing 		All-Way Stop
Unknown 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Single-Lane
Houston, TX
Harris Co.
United States 		Grove Ridge Dr. / Leonora St.
(29.67659, -95.28483) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		No splitter islands.
Houston, TX
Harris Co.
United States 		Carothers St. / Kinney St.
(29.68701, -95.30075) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
88.3920 		Other (At-Grade)
Single-Lane 		Six houses within central island, parking along circulatory roadway, bidirectional travel along circulatory roadway.
Salem, MA
Essex Co.
United States 		Swampscott Rd. / 1st St.
(42.49822, -70.92450) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2019