Roundabouts Database

28798 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
Watertown, WI
Dodge Co.
United States 		BUS 26 (N Church St.) / STH 16 EB Ramps
(43.21605, -88.73625) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.2976 		Freeway Ramps (Grade-Separated)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Windsor, WI
Dane Co.
United States 		Windsor Rd. / US 51 SB Ramps
(43.21641, -89.32400) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.2973 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2013 Year Completed estimated (2013-2014). ICD estimated from Google Maps linework.
Irondequoit, NY
Monroe Co.
United States 		Rte 590 / Seneca Rd.
(43.21642, -77.54655) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.2973 		Other (At-Grade)
Single-Lane 		2010 Series of 4 roundabouts. ICD estimated from Google Maps linework.
Ellijay, GA
Gilmer Co.
United States 		River St. / Dalton St. / Main St.
(34.69513, -84.48260) 		Other
Existing 		Unknown
Unknown 		6 Approaches
0 Driveways
38.2967 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Granite Falls, WA
Snohomish Co.
United States 		Granite Falls Access Rd. / Burn Rd. (NE 100th St.)
(48.08656, -121.99060) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.2954 		Other (At-Grade)
Single-Lane 		2010 November 2010. ICD estimated from Google Maps linework.
Rome, NY
Oneida Co.
United States 		Rte 825 (Hill Rd.) / Floyd Ave. / Brooks Rd.
(43.22258, -75.41900) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.2935 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 Year Completed estimated (2017-2018). https://en.wikipedia.org/wiki/New_York_State_Route_825 ICD estimated from Google Maps linework.
Irondequoit, NY
Monroe Co.
United States 		Rte 590 / Point Pleasant Rd.
(43.22389, -77.54493) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.2926 		Other (At-Grade)
Single-Lane 		2010 Series of 4 roundabouts. ICD estimated from Google Maps linework.
Gothenburg, Vastra Gotaland County
Gothenburg
Sweden 		Oljevägen / Nordatlanten
(57.69906, 11.87051) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.2925 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Gothenburg, Vastra Gotaland County
Gothenburg
Sweden 		Hjalmar Brantingsgatan / Sommarvadersgatan / Hostvadersgatan / Yrvadersgatan
(57.71303, 11.89656) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.2778 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		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.
Val d'Or, QC
Abitibi-Témiscamingue Region
Canada 		Blvd. Tetrault / Rue de l'Hydro
(48.11267, -77.79543) 		Roundabout
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
38.2759 		Other (At-Grade)
Unknown 		2003 ICD estimated from Google Maps linework.
Olympia, WA
Thurston Co.
United States 		Boulevard Rd. / Morse-Merryman Rd. SE
(47.01817, -122.86518) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.2699 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
St Johns, FL
St. Johns Co.
United States 		SR 13 / Rafter Tail Ln.
(30.01773, -81.63293) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.2630 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018). ICD estimated from Google Maps linework.
Port Salerno, FL
Martin Co.
United States 		SE Salerno Rd. / SE Martin Meadows Ave. / (unknown) / (unknown)
(27.13707, -80.21922) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
38.2628 		Other (At-Grade)
Single-Lane 		2009 Long oval. ICD estimated from Google Maps linework.
Berkel en Rodenrijs, South Holland
Lansingerland
Netherlands 		N471 / Marconisingel
(51.97634, 4.44973) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.2559 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Turbo roundabout. ICD estimated from Google Maps linework.
San Sebastián, Basque Country
Guipúzcoa
Spain 		Calle Dr. Begiristain / Camino de Goiaztxiki
(43.28580, -1.98559) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.2537 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Olympia, WA
Thurston Co.
United States 		Olympic Way NW / 4th Ave. W / 5th Ave. W
(47.04422, -122.91200) 		Roundabout
Existing 		All-Way Yield
Active Pedestrian Warning (flashing yellow) 		4 Approaches
0 Driveways
38.2512 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 Opened March 2004. Functional Class: Arterial ICD estimated from Google Maps linework.
San Sebastián, Basque Country
Guipúzcoa
Spain 		Miramon pasealekua
(43.29041, -1.98001) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.2508 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Town and Country, MO
St. Louis Co.
United States 		MO 141 SB Ramps / Woods Mill Rd.
(38.63523, -90.51449) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
38.2503 		Other (At-Grade)
Single-Lane 		2002 Previously controlled by one-way stop ICD estimated from Google Maps linework.
Youngsville, LA
Lafayette Par.
United States 		Chemin Metarie Pkwy. / Viaulet Rd.
(30.07649, -91.95547) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.2403 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2012-2014). ICD estimated from Google Maps linework.
Youngsville, LA
Lafayette Par.
United States 		LA 89 / Chemin Metairie Pkwy.
(30.08441, -91.99059) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
38.2372 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
St Johns, FL
St. Johns Co.
United States 		Heron Landing Rd. / Sanctuary Dr.
(30.08552, -81.53676) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
38.2368 		Other (At-Grade)
Single-Lane 		Mix of stop and yield control. No splitter islands. Pedestrian crossings at edge of circulatory roadway. ICD estimated from Google Maps linework.
Pijnacker, South Holland
Pijnacker-Nootdorp
Netherlands 		N470 / Faunalaan / Oude Leedeweg
(51.99962, 4.43945) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.2360 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Turbo roundabout. ICD estimated from Google Maps linework.
Jackson, WY
Teton Co.
United States 		US 89 / US 191
(43.32233, -110.73067) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.2307 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2009-2013). ICD estimated from Google Maps linework.
Betton, Brittany
Ille-et-Vilaine
France 		Rue d'Helsinki / Avenue de l'Europe
(48.17502, -1.66246) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.2295 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
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.
Youngsville, LA
Lafayette Par.
United States 		LA 92 / Chemin Metairie Pkwy.
(30.10922, -92.01561) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
38.2276 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Hveragerðisbær, Suðurland

Iceland 		Rte 1 / Rte 38 / Rte 376
(63.99524, -21.19289) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.2263 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Jacksonville, FL
Duval Co.
United States 		Stone Mason Way / Blacksmith Terr. / Northern Ridge Path / (parking lot)
(30.12254, -81.43680) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.2225 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2015-2016). ICD estimated from Google Maps linework.
Itxassou, Nouvelle-Aquitaine
Pyrénées-Atlantiques
France 		D918 / La Place
(43.33646, -1.40362) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.2218 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Gothenburg, Vastra Gotaland County
Gothenburg
Sweden 		Gråbovägen / Bergsjövägen
(57.77816, 12.07197) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.2089 		Other (At-Grade)
Single-Lane 		Through bypass lane. ICD estimated from Google Maps linework.
West Bend, WI
Washington Co.
United States 		CR-P / CR-NN E
(43.36879, -88.18095) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.2015 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Bristow, VA
Prince William Co.
United States 		Iron Brigade Unit Ave. / Tenth Alabama Way
(38.72790, -77.54408) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.2008 		Other (At-Grade)
Single-Lane 		2006 Functional Class: Local ICD estimated from Google Maps linework.
Gothenburg, Vastra Gotaland County
Gothenburg
Sweden 		Gråbovägen / Gunnilsevägen
(57.78926, 12.09674) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1971 		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.
Colorado Springs, CO
El Paso Co.
United States 		Nelson Blvd. / Harr Ave.
(38.73903, -104.80268) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1948 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Saukville, WI
Ozaukee Co.
United States 		STH 33 (E Green Bay Ave.)
(43.38493, -87.92303) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1913 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 Opened September 21, 2012. Functional Class: Arterial ICD estimated from Google Maps linework.
Saukville, WI
Ozaukee Co.
United States 		STH 33 (E Green Bay Ave.) / Northwood Rd.
(43.38498, -87.92057) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1913 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 Opened September 21, 2012. Functional Class: Arterial ICD estimated from Google Maps linework.
Linton Hall, VA
Prince William Co.
United States 		Tartan Hills Pkwy. / Native Rocks Dr. / Seagate Way
(38.74593, -77.58755) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1911 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		E Crossroads Blvd. / I-25 NB Ramps
(40.43597, -104.99138) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.1797 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2011 ICD estimated from Google Maps linework.
Rocklin, CA
Placer Co.
United States 		Rocklin Rd. / Meyers St.
(38.78852, -121.22915) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1684 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 ICD estimated from Google Maps linework.
Gardner, KS
Johnson Co.
United States 		E Grand St. / White Dr.
(38.80410, -94.91469) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1600 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2012-2013). ICD estimated from Google Maps linework.
Vallentuna, Stockholm County
Vallentuna
Sweden 		Rte 268 / Rte 264 / Lindholmsvägen
(59.53093, 18.09760) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1536 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Mount Pleasant, SC
Charleston Co.
United States 		Patriots Point Rd. / (unknown)
(32.78888, -79.90328) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1535 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 ICD estimated from Google Maps linework.
Morningside, QLD

Australia 		Lytton Rd. / Junction Rd. / Colmslie Rd.
(-27.45764, 153.08788) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1524 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Fayetteville, NC
Cumberland Co.
United States 		Camden Rd. / Cumberland Rd.
(35.02237, -78.90197) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1447 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Tallahassee, FL
Leon Co.
United States 		SR 61 / Oak Ridge Rd. W
(30.32480, -84.31148) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1439 		Other (At-Grade)
Single-Lane 		2019 ICD estimated from Google Maps linework.
Åhus, Skane County
Kristianstad
Sweden 		Rte 118 / Kavrövägen
(55.92304, 14.28865) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1438 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Saint George, UT
Washington Co.
United States 		Airport Pkwy. / Desert Canyons Pkwy.
(37.02456, -113.50841) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1410 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Åhus, Skane County
Kristianstad
Sweden 		Rte 118 / Hamnleden
(55.92965, 14.28990) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1373 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Treeline View / Stately View
(38.87351, -104.86560) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
38.1228 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Altoona, WI
Eau Claire Co.
United States 		Meadowlark Ln. / Front Porch Pl.
(44.82051, -91.46056) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1222 		Other (At-Grade)
Single-Lane 		2016 https://www.google.com/maps/d/viewer?mid=1kRgB04jjoXd6tLLe0r20FJoxJMI&ll=44.82028420322557%2C-91.46035208710174&z=16. ICD estimated from Google Maps linework.
Oak Grove, MD
Prince Georges Co.
United States 		MD 193 (Watkins Park Dr.) / Oak Grove Rd.
(38.87737, -76.78108) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1207 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Hampton, VA

United States 		Exploration Way / Floyd Thompson Dr.
(37.08245, -76.39976) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1119 		Other (At-Grade)
Single-Lane 		2004 Functional Class: Local ICD estimated from Google Maps linework.
Fayetteville, NC
Cumberland Co.
United States 		Plantation Garden Blvd. / Scotch Hall Way / Harmony Hall Way
(35.09671, -78.97316) 		Other
Existing 		Uncontrolled
Unknown 		3 Approaches
1 Driveways
38.1100 		Other (At-Grade)
Single-Lane 		2012 Gated community. Parking along circulatory roadway. ICD estimated from Google Maps linework.
Kalix, Norrbotten County
Kalix
Sweden 		E4 / Nygatan / Älvängsvägen
(65.85406, 23.14304) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1073 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Cottage Grove, MN
Washington Co.
United States 		CSAH 19-CSAH 19A (Keats Ave. S) / CSAH 22 (70th St. S)
(44.84796, -92.90354) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1040 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Cottage Grove, MN
Washington Co.
United States 		Jamaica Ave S / 70th St S
(44.84808, -92.92186) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1039 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2016 ICD estimated from Google Maps linework.
Cottage Grove, MN
Washington Co.
United States 		Hinton Ave. S / 70th St. S
(44.84809, -92.94916) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1039 		Other (At-Grade)
Single-Lane 		2019 ICD estimated from Google Maps linework.
Sandviken, Gavleborg County
Sandviken
Sweden 		Rte 272 / Hamngatan / Seljansögatan
(60.60538, 16.77068) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1032 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Palmer, AK
Matanuska-Susitna
United States 		Trunk Rd. / E Blue Lupine Dr. / Georgeson Rd.
(61.56617, -149.26180) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1010 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 ICD estimated from Google Maps linework.
Valdés, Principality of Asturias
Asturias
Spain 		N-634 / A-8 Ramps
(43.52873, -6.55152) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.1006 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Victoria, MN
Carver Co.
United States 		Watermark Pkwy. / Kelzer Pond Dr.
(44.85331, -93.67349) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
38.1005 		Unknown
Single-Lane 		2002 No splitter islands. ICD estimated from Google Maps linework.
Ishpeming, MI
Marquette Co.
United States 		N 2nd St. / N 3rd St.
(46.50205, -87.66564) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2016
Nellis AFB, NV
Clark Co.
United States 		Ellsworth Ave. / Beale Ave.
(36.24458, -115.04291) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2012-2014).
Northfield Township, MI
Washtenaw Co.
United States 		W 8 Mile Rd. / US 23 NB Ramps
(42.42882, -83.76591) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2017
Ann Arbor, MI
Washtenaw Co.
United States 		Geddes Rd. / Earhart Rd.
(42.27460, -83.68216) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2011 At Concordia College campus.
Portland, OR
Multnomah Co.
United States 		SW Terwilliger Blvd. / SW Palater Rd.
(45.45290, -122.67660) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2002 Roundabout replaces existing Y-intersection, adds fourth leg to serve college law school. Includes driveway into roundabout serving two homes. Roundabout is on tilted plane with central island plane steeper than inscribed circle plane to manage cross slopes. Northeast leg (Palater Road) has 8-9 percent grade down into roundabout, then flattens using a short vertical curve to a zero percent crown at the top of the circulatory roadway. Maximum grade through the roundabout is 4 percent; maximum cross slope is -2 percent. First roundabout under City of Portland jurisdiction.
Voorheesville, NY
Albany Co.
United States 		Rte 85A (Maple Rd.) / Rte 155
(42.64936, -73.92110) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003 Replaced a stop-controlled, channelized triangular intersection. Completed Fall 2003. First roundabout in Albany area.
Clarkdale, AZ
Yavapai Co.
United States 		Clarkdale Pkwy. / Mountain Gate Dr.
(34.76500, -112.06276) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2003-2006).
Carmel, IN
Hamilton Co.
United States 		E 136th St. / Keystone Pkwy NB Ramps
(39.98598, -86.11404) 		Roundabout
Existing 		All-Way Yield
Metering Signal 		3 Approaches
0 Driveways
38.1000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Part of tight diamond interchange with raindrop shape central island. Modified in 2016-2017 to add metering signals. Northbound ramp from Keystone Pkwy has a metering signal (PHB) that activates during peak hours when triggered by a long westbound queue. Eastbound approach has a metering signal (PHB) that activates during peak hours when triggered by a long northbound queue. 21442
East Aurora, NY
Erie Co.
United States 		Rte 20A / Rte 78
(42.76773, -78.62917) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2009 Converted from rotary.
Blaine, WA
Whatcom Co.
United States 		SR 548 (Grandview Rd.) / Blaine Rd. / (parking)
(48.89206, -122.72655) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2010 September 2010. Merging right-turn bypass lane on south leg. Right-turn-oinly lane on north leg.
Selah, WA
Yakima Co.
United States 		Gore Rd. / Selah Loop Rd.
(46.67943, -120.53061) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2008 August 2008. Replaced triangle intersection.
Walla Walla, WA
Walla Walla Co.
United States 		Myra Rd. / SR 12 WB Ramps
(46.07040, -118.36987) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2010 Raindrop shaped. July 2010.
Spokane Valley, WA
Spokane Co.
United States 		Flora Rd. / E Mission Ave. / E Indiana Pkwy. - E Mission Pkwy.
(47.67154, -117.17516) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2010 E Indiana Pkwy is west leg entrance; E Mission Pkwy is west leg exit. November 2010.
Tumwater, WA
Thurston Co.
United States 		Littlerock Rd. SW / Israel Rd. SW / 70th Ave. SW
(46.98554, -122.93236) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2009 October 2009.
Commerce City, CO
Adams Co.
United States 		E 105th Ave. / Uvalda St.
(39.88673, -104.83520) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (2002-2003).
Commerce City, CO
Adams Co.
United States 		Wheeling St. / E 106th Ave. / Victor St.
(39.88895, -104.83121) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003 Painted splitter islands.
Bozeman, MT
Gallatin Co.
United States 		Laurel Pkwy. / Glenellen Dr. / Sherwood Way
(45.69050, -111.11401) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003
Forest Hill, MD
Harford Co.
United States 		MD 23 / Commerce Rd.
(39.57390, -76.37067) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2008 On August 9, 2008 a new roundabout opened on Maryland Route 23 and an extended Commerce Drive in Forest Hill (Harford County), Maryland. It was built by a private developer to improve access to the Forest Hill Industrial Park by using Route 23, a limited access highway, rather than the current access road to Commerce Drive, Jarrettsville Road, which is primarily a residential route.
Waco, TX
McLennan Co.
United States 		Crosslake Pkwy. / Legend Lake Pkwy.
(31.49100, -97.15920) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2006 Major internal street intersection for a 159-acre tract (74.5 acres of this is Hospital and Medical complex).
Bryan, TX
Brazos Co.
United States 		Miramont Blvd. / Miramont Cir.
(30.67306, -96.30883) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2004 Gateway intersection of Miramont subdivision/country club development. At the main entry to the clubhouse facilities.
Chincoteague, VA
Accomack Co.
United States 		Beach Rd. / (parking lot)
(37.88955, -75.34290) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2016 This roundabout is constructed on the sand. Inside Assateague National Seashore. Year Completed estimated (2013-2016).
Burlingame, CA
San Mateo Co.
United States 		California Dr. / Bellevue Ave. / Lorton Ave.
(37.58049, -122.34729) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2019 Bus stop in advance of crosswalk on through bypass lane.
San Antonio, TX
Bexar Co.
United States 		San Pedro Ave. / N Main Ave. / Navarro St
(29.43375, -98.49433) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 .
New Milford, CT
Litchfield Co.
United States 		Still River Dr. / Pickett District Rd. / Lanesville Rd.
(41.54029, -73.41615) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
1 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2018
Reedley, CA
Fresno Co.
United States 		Reed Ave. / North Ave. / I St.
(36.60072, -119.45756) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		3 Approaches
2 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2017 Right-turn-only lane on southwest leg. Roundabout is approximately 100 feet from at-grade railroad crossing on southwest leg. A signalized intersection is approximately 60 feet from the at-grade rail crossing on the other side of the rail crossing. The two legs of the roundabout not crossing the railroad tracks have train-activated flashing red beacons requiring traffic to stop when flashing.
Frisco, TX
Denton Co.
United States 		4th Army Dr. / Timber Ridge Dr.
(33.12940, -96.86042) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2018 https://communityimpact.com/guides/dallas-fort-worth/frisco/news/transportation/2018/10/25/transportation-update-4th-army-drive-5/.
Columbus, OH
Franklin Co.
United States 		Dublin-Granville Rd. / Albany Park Dr.
(40.07893, -82.84812) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2019
San Antonio, TX
Bexar Co.
United States 		Wildhorse Pkwy. / Mustang Gate
(29.53330, -98.70100) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2004 .
San Antonio, TX
Bexar Co.
United States 		Bella Vista Pl. / Palatine Hill
(29.42546, -98.76859) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2005 No buffer between sidewalk and circulatory roadway.
Aubrey, TX
Denton Co.
United States 		Union Park Blvd. / Fish Trap Rd.
(33.23213, -96.92081) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
Ypsilanti Township, MI
Washtenaw Co.
United States 		Wiard Rd. / Airport Dr.
(42.23730, -83.56309) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2017
Scotts Hill, NC
New Hanover Co.
United States 		Scotts Hill Medical Dr. / NHRMC ER Driveway
(34.31484, -77.76922) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		Painted splitter island on one leg, no splitter islands on others.
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).
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.
West Jordan, UT
Salt Lake Co.
United States 		W 8600 S / 6000 W
(40.59520, -112.03394) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2015-2016).
Richmond, VA
Chesterfield Co.
United States 		N Arch Rd. / Arboretum Pkwy.
(37.49494, -77.57103) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
Bentonville, AR
Benton Co.
United States 		NE J St. / Museum Way / John Deshields Blvd.
(36.37822, -94.19655) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2019 https://www.dot.state.mn.us/d2/projects/2019/hwy71-bemidji/index.html