Roundabouts Database

29372 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
Mankato, MN
Blue Earth Co.
United States 		Stadium Rd. / Pohl Rd.
(44.14510, -93.97611) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 Opened August 29, 2020. https://www.keyc.com/2020/08/28/mankatos-newest-roundabout-open-saturday/
Cologne, MN
Carver Co.
United States 		STH 5 / Orchard Rd.
(44.82925, -93.82348) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Single-Lane 		2017 Rural. Year Completed estimated (2017-2018).
Waconia, MN
Carver Co.
United States 		CR 10 (Orchard Rd.) / Community Dr.
(44.83673, -93.82410) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2017 Year Completed estimated (2017-2018).
Waconia, MN
Carver Co.
United States 		Waconia Pkwy. / CR 10
(44.84217, -93.81903) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019).
Monticello, MN
Wright Co.
United States 		E 7th St. / Fallon Ave. NE
(45.29661, -93.78431) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Monticello, MN
Wright Co.
United States 		Chelsea Rd. / Fallon Ave. NE
(45.29370, -93.78557) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Monticello, MN
Wright Co.
United States 		E 7th St. / Washington St.
(45.29817, -93.78709) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Covington, GA
Newton Co.
United States 		Riverstone Dr. / Riverstone Pkwy.
(33.59147, -83.89301) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Avondale Estates, GA
DeKalb Co.
United States 		Lakeshore Dr. / Kensington Rd.
(33.77246, -84.26350) 		Other
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Chula Vista, CA
San Diego Co.
United States 		Industrial Blvd. / Ada St.
(32.60208, -117.08502) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2009
Chula Vista, CA
San Diego Co.
United States 		Exploration Falls Dr & Discovery Falls Dr
(32.62407, -116.95973) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Painted splitter islands, parking along circulatory roadway.
Chula Vista, CA
San Diego Co.
United States 		Evening Star St. / Windingwalk St.
(32.62644, -116.95313) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Partial painted splitter islands.
Coronado, CA
San Diego Co.
United States 		Star Park Cir. [Flora Ave. / Loma Ave. / Park Pl.]
(32.68400, -117.18101) 		Other
Existing 		All-Way Stop
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway.
West Chester, OH
Butler Co.
United States 		Lesourdsville West Chester Rd. / Becket Ridge Blvd.
(39.34459, -84.41655) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2020 Near a junior high school. https://www.journal-news.com/news/newest-roundabout-opens-in-west-chester-as-dangerous-intersection-work-begins/PWKR73DU2VD53AOPGDM3VII2U4/
Chula Vista, CA
San Diego Co.
United States 		Raven Ave. / (parking)
(32.61637, -117.03642) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.8600 		Other (At-Grade)
Single-Lane 		2016
Lakeside, CA
San Diego Co.
United States 		Harry Hertzberg Way / Founders Way
(32.93779, -116.87303) 		Other
Existing 		All-Way Stop
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Stop control on circulatory roadway and on all entries.
Melrose, MA
Middlesex Co.
United States 		Green St. / Howard S.
(42.46562, -71.05908) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		2019 Replaced stop-controlled triangle set of intersections.
Watertown, MA
Middlesex Co.
United States 		Common St. / Orchard St. / Church St.
(42.37243, -71.17858) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
33.5277 		Other (At-Grade)
Single-Lane 		2020
St Simons Island, GA
Glynn Co.
United States 		Demere Rd. / E Beach Causeway
(31.14836, -81.38116) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.arcgis.com/apps/MapJournal/index.html?appid=1665571e5832424bbef0fe01a60a00c0&section=7
St Simons Island, GA
Glynn Co.
United States 		Ocean Blvd. / Ocean Rd. / E Beach Causeway / 1st St.
(31.14671, -81.37451) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 https://www.arcgis.com/apps/MapJournal/index.html?appid=1665571e5832424bbef0fe01a60a00c0&section=8
(unincorporated), TX
Webb Co.
United States 		Inspiration Pkwy. / (unknown)
(27.59683, -99.43837) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2017
(unincorporated), TX
Webb Co.
United States 		(unknown) / (unknown)
(27.59454, -99.43233) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2017
Laredo, TX
Webb Co.
United States 		(unknown) / (unknown)
(27.61862, -99.45209) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
21.3357 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2020).
Laredo, TX
Webb Co.
United States 		(unknown) / (unknown)
(27.61666, -99.45271) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
21.3360 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2020).
Del Mar Hills, TX
Webb Co.
United States 		International Blvd. / Puerto Belo / Sandy Ln.
(27.58409, -99.48222) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Painted splitter islands; change lanes to enter or exit circle.
Webb City, MO
Jasper Co.
United States 		MO 43/MO 96
(37.20043, -94.50865) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2012-2014).
Webb City, MO
Jasper Co.
United States 		E MacArthur Dr. / Centennial St. / S East St.
(37.14176, -94.45764) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
68.5797 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 Double left on north leg; right-turn-only lane on east leg.
Joplin, MO
Jasper Co.
United States 		Tri State Rd. / W 1st St.
(37.09190, -94.55775) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
56.3880 		Other (At-Grade)
Single-Lane 		2008
Joplin, MO
Jasper Co.
United States 		Prigmor Rd. / E 20th St. / I-44 WB Ramps
(37.06999, -94.40444) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9600 		Freeway Ramps (Grade-Separated)
Single-Lane 		2015 https://www.joplinglobe.com/news/local_news/new-i-44-interchange-ready-for-traffic-to-roll/article_a99388fb-0488-5c4a-82e9-f0e64593260b.html
Joplin, MO
Jasper Co.
United States 		Prigmor Rd. / CR 190 / Apple Rd. / I-44 EB Ramps
(37.06848, -94.40364) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9600 		Freeway Ramps (Grade-Separated)
Single-Lane 		2015 https://www.joplinglobe.com/news/local_news/new-i-44-interchange-ready-for-traffic-to-roll/article_a99388fb-0488-5c4a-82e9-f0e64593260b.html
Leawood, MO
Newton Co.
United States 		E 50th St. / (parking)
(37.03321, -94.50215) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2009-2010).
Marion, IL
Williamson Co.
United States 		Morgan Ave. (The Hill) / N Carbon St.
(37.74458, -88.94792) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2019 https://local.nixle.com/alert/7707046/
(unincorporated), GA
Hall Co.
United States 		(unknown) / (unknown)
(34.43486, -83.69755) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Tallahassee, FL
Leon Co.
United States 		Harbor Club Dr. / Kiawah Dr.
(30.47399, -84.22270) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2006
Duluth, GA
Gwinnett Co.
United States 		Venture Dr. / Day Dr.
(33.95385, -84.13234) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.gwinnettdailypost.com/multimedia/photos-new-roundabout-at-venture-day-drives-opens/collection_befd7f9e-993b-11ea-b52d-87cffebaf0b1.html#1
Greenacres, WA
Spokane Co.
United States 		N Barker Rd. / I-90 WB Ramps / E Cataldo Ave.
(47.66736, -117.15377) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.4904 		Freeway Ramps (Grade-Separated)
Single-Lane 		2020 ICD ranges from approx 112 to approx 123 feet. Open 8/25/2020.
St Cloud, MN
Stearns Co.
United States 		33rd St. S / Cooper Ave. S
(45.51500, -94.17814) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 Year Completed estimated (2016-2019).
Sherwood, OR
Washington Co.
United States 		SW Elwert Rd. / SW Kruger Rd. / Cedar Ln.
(45.35477, -122.86786) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2020 Intersection of Kruger/Elwert was moved north a few hundred feet. That intersection was previously a two-way stop.
Shakopee, MN
Scott Co.
United States 		Vierling Dr. E / 12th Ave. / Shenandoah Dr.
(44.78504, -93.48103) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Single-Lane 		2019 Right-turn bypass lane on south leg.
Shakopee, MN
Scott Co.
United States 		Shenandoah Dr. / Canterbury Access Road Connector / (parking)
(44.78989, -93.48637) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2019 Right-turn only lane on south leg. Year Completed estimated (2017-2019).
Shakopee, MN
Scott Co.
United States 		Shenandoah Dr. / (parking)
(44.79179, -93.48743) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2017-2019).
St Louis Park, MN
Hennepin Co.
United States 		Cedar Lake Rd. / Zarthan Ave.
(44.96544, -93.35534) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020
Horizon West, FL
Orange Co.
United States 		Lake Hancock Blvd. / John Hancock Dr.
(28.45882, -81.62045) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2013
Horizon West, FL
Orange Co.
United States 		Summerport Village Pkwy. / Eden Isle Blvd. / Merrick Landing Blvd. / Blu Knight Ln.
(28.47355, -81.58850) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2002
Willows at Lake Rhea, FL
Orange Co.
United States 		Willow Gardens Dr. / Willow Brick Rd.
(28.51391, -81.54793) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
76.2000 		Other (At-Grade)
Single-Lane 		No splitter islands on two legs.
Metro West, FL
Orange Co.
United States 		Lake Debra Dr. / (unknown)
(28.51446, -81.47791) 		Other
Existing 		Other
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Stop control on one leg.
Fort Wayne, IN
Allen Co.
United States 		Lincoln Hwy. / Goshen Ave. / Sherman Blvd. / Lillian Ave.
(41.09896, -85.15372) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.wane.com/news/local-news/goshen-avenue-roundabout-opens-to-traffic/
Salem, MI
Washtenaw Co.
United States 		Pontiac Trl. / 7 Mile Rd.
(42.41368, -83.64647) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2020 https://www.wcroads.org/wcrc-project/pontiac-trail-and-7-mile-road-roundabout/
Chester, MD
Queen Anne's Co.
United States 		Castle Marina Rd. / Bayberry Dr.
(38.98086, -76.28905) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Severna Park, MD
Anne Arundel Co.
United States 		East West Blvd. / Jumpers Hole Rd. / Adler Ct.
(39.10765, -76.58306) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
65.5320 		Other (At-Grade)
Single-Lane 		1998 Elliptical shape. ICD 225 ft x 200 ft. Year Completed estimated (1994-2002).
Millersville, MD
Anne Arundel Co.
United States 		Brightview Dr. / Galiot Dr. / Tremont Dr.
(39.11196, -76.62028) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2008
Hanover, MD
Anne Arundel Co.
United States 		Parkside Blvd. / Fredericksburg Rd. / Cornfield Ave.
(39.13140, -76.75125) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2015
Gaithersburg, MD
Montgomery Co.
United States 		Washingtonian Blvd. / Rio Blvd.
(39.11678, -77.20122) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1998 Year Completed estimated (1993-2002).
Gaithersburg, MD
Montgomery Co.
United States 		Washingtonian Blvd. / Washington Blvd.
(39.11773, -77.20314) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1998 Year Completed estimated (1993-2002).
Severn, MD
Anne Arundel Co.
United States 		Milestone Pkwy. / (unknown)
(39.14341, -76.75076) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 Year Completed estimated (2011-2014).
Severn, MD
Anne Arundel Co.
United States 		Milestone Pkwy. / Clubhouse Dr.
(39.14600, -76.74775) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 Year Completed estimated (2011-2014).
Severn, MD
Anne Arundel Co.
United States 		Milestone Pkwy. / Split Creek Ln. / (parking)
(39.15042, -76.74668) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007
Darnestown, MD
Montgomery Co.
United States 		Schaeffer Rd. / Germantown Park Dr. / Central Park Cir.
(39.15003, -77.30152) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2004 Right-turn-only lane on northeast leg. Year Completed estimated (2002-2005).
Jessup, MD
Anne Arundel Co.
United States 		Montevideo Rd. / Forest Ave. / Wigley Ave.
(39.15966, -76.75916) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2006-2007).
Columbia, MD
Howard Co.
United States 		Owen Brown Rd. / Martin Rd.
(39.19989, -76.86930) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2002-2005).
Columbia, MD
Howard Co.
United States 		Oakland Mills Rd. / MD 175 SB Ramps / (unknown)
(39.21308, -76.83456) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Freeway Ramps (Grade-Separated)
Single-Lane 		2017 Year Completed estimated (2016-2017).
Columbia, MD
Howard Co.
United States 		Oakland Mills Rd. / Old Montgomery Rd.
(39.20788, -76.83157) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2017
Clarksville, MD
Howard Co.
United States 		Linden Church Rd. / MD 32 NB Ramps
(39.22942, -76.97263) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Freeway Ramps (Grade-Separated)
Single-Lane 		2013 Year Completed estimated (2011-2014).
Clarksville, MD
Howard Co.
United States 		Highland Rd. / Triadelphia Mill Rd.
(39.21551, -76.97698) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2008
West Friendship, MD
Howard Co.
United States 		Castlebridge Rd. / Hunter's View Rd.
(39.24552, -76.90189) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2006
West Friendship, MD
Howard Co.
United States 		Folly Quarter Rd. / Sheppard Ln. / Homewood Rd.
(39.24979, -76.93188) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2002-2005).
Glenelg, MD
Howard Co.
United States 		Pfefferkorn Rd. / Fox Stream Way / Old Rover Rd.
(39.29067, -76.99226) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2005).
Cooksville, MD
Howard Co.
United States 		Long Corner Rd. / Penn Shop Rd.
(39.33938, -77.15284) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (1988-2005).
Camp Springs, MD
Prince George's Co.
United States 		Capital Gateway Dr. / Auth Rd. / Old Soper Rd.
(38.82403, -76.91189) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1999 Unstriped circulatory roadway. Year Completed estimated (1995-2001).
College Park, MD
Prince George's Co.
United States 		Campus Dr. / Mowatt Ln. / Valley Dr. (Alumni Dr.)
(38.98482, -76.94890) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.0037 		Other (At-Grade)
Single-Lane 		2004 Striped splitter island on north and east legs. Year Completed estimated (2002-2005).
Parole, MD
Anne Arundel Co.
United States 		Housley Rd. / Gateway Village Dr. / Annapolis Ridge Rd.
(38.98793, -76.55715) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2000 Right-turn-only lanes on north and south legs. Year Completed estimated (1998-2002). Converted from unstriped two-lane roundabout in 2008-2009.
Summerfield, MD
Prince George's Co.
United States 		Saint Josephs Dr. / Grove Hurst Ln.
(38.91969, -76.84060) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012
Summerfield, MD
Prince George's Co.
United States 		Ruby Lockhart Blvd. / Taj Ln.
(38.92163, -76.84438) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2011
Glenarden, MD
Prince George's Co.
United States 		Ruby Lockhart Blvd. / Campus Way
(38.92345, -76.84696) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2011
Glenarden, MD
Prince George's Co.
United States 		Ruby Lockhart Blvd. / Evarts St. / Sir Michael Pl.
(38.92506, -76.84953) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2011 Double left-turn and double right-turn movements.
Summerfield, MD
Prince George's Co.
United States 		Campus Way / Geaton Park Pl.
(38.92577, -76.84451) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2011
Beltsville, MD
Prince George's Co.
United States 		Sellman Rd. / Woodbine Rd.
(39.03418, -76.93680) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2008 Intersection relocated south of previous TWSC intersection.
Calverton, MD
Montgomery Co.
United States 		Fairland Rd. / Brahms Ave. / (parking)
(39.07126, -76.95403) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008
Calverton, MD
Montgomery Co.
United States 		Fairland Rd. / Marlow Farm Terr. / Musgrove Rd.
(39.07004, -76.95264) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2008
Calverton, MD
Montgomery Co.
United States 		Fairland Rd. / Galway Dr.
(39.06594, -76.94436) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2008
Greenacres, WA
Spokane Co.
United States 		N Barker Rd. / I-90 EB Ramps
(47.66457, -117.15376) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Freeway Ramps (Grade-Separated)
Single-Lane 		2020 Open September 4, 2020.
Konterra, MD
Prince George's Co.
United States 		Bentley Park Dr. / Parkgate Dr.
(39.09112, -76.91733) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2015
Perry Hall, MD
Baltimore Co.
United States 		E Joppa Rd. / Scott Moore Way / Cowenton Ave.
(39.40290, -76.44124) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2008 Right-turn bypass lane on west leg.
Hagerstown, MD
Washington Co.
United States 		Hagers Crossing Dr. / Bartow Dr. / Sedgwick Way
(39.65981, -77.75932) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (1999-2005).
Robinwood, MD
Washington Co.
United States 		Yale Dr. / Medical Campus Rd. / Caring Pathway Ln.
(39.62594, -77.68707) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2016 Right-turn bypass lane on southwest leg.
Linganore, MD
Frederick Co.
United States 		Boyers Mill Rd. / Eaglehead Dr.
(39.41912, -77.30650) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2018
Ballenger Creek, MD
Frederick Co.
United States 		Jefferson Technology Pkwy. / Jefferson Station Blvd.
(39.39223, -77.45291) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Year Completed estimated (2013-2015).
Ballenger Creek, MD
Frederick Co.
United States 		Holiday Dr. / Spectrum Dr.
(39.38178, -77.40206) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 Left turn lane trap in circulatory roadway.
Bel Air North, MD
Harford Co.
United States 		Red Pump Rd. / Yankee Doodle Dr.
(39.54551, -76.37994) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2010
Bel Air South, MD
Harford Co.
United States 		Woodsdale Rd. / Box Hill Corporate Center Dr. / (parking)
(39.46498, -76.31016) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2014 Year Completed estimated (2013-2015).
Bear, DE
New Castle Co.
United States 		Rockwood Rd. / Gregory Dr.
(39.62152, -75.67763) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2001 Year Completed estimated (1992-2002).
Estes Park, CO
Larimer Co.
United States 		US 34 (Wonderview Ave.) / MacGregor Ave.
(40.38043, -105.52244) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.youtube.com/watch?v=AB4aM0_6gDs
Idaho Springs, CO
Clear Creek Co.
United States 		Colorado Blvd. / I-70 WB Ramps
(39.74195, -105.49607) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2015
Evergreen, CO
Jefferson Co.
United States 		CO 74 / CO 64 (Turkey Creek Rd.)
(39.58759, -105.30994) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2008
Spartanburg, SC
Spartanburg Co.
United States 		Clifton-Glendale Rd. / Fernwood Glendale Rd.
(34.96021, -81.84396) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 Year Completed estimated (2019-2020).
Knoxville, TN
Knox Co.
United States 		Town Center Blvd. / Boardwalk Blvd. / I-140 EB Off-ramp
(35.86049, -84.07767) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2012 Year Completed estimated (2012-2013).
Knoxville, TN
Knox Co.
United States 		Thunderhead Rd. / Willow Loop Way
(35.85896, -84.07963) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2007
Reno, NV
Washoe Co.
United States 		SR 425 / Edinburg Dr.
(39.52257, -119.96617) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Reno, NV
Washoe Co.
United States 		Herz Blvd. / Summit Sierra Blvd.
(39.40118, -119.75215) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Concentric circulatory roadway striping. Year Completed estimated (2004-2006).
Perry, GA
Houston Co.
United States 		(unknown) / (parking)
(32.43653, -83.75816) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane