Roundabouts Database Index

28782 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
Taylors, SC Greenville Co. United States	Gaithburg Square / Bransfield Rd. (34.88630, -82.29624)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-Lane	2007	Painted splitter islands. Year Completed estimated (2006-2007).
Crestwood, KY Oldham Co. United States	Spring Hill Trace / Clore Ln. (38.33233, -85.50073)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 41.1480	Other (At-Grade) Single-Lane	2010
New Albany, IN Floyd Co. United States	Technology Ave. / Innovation Blvd. (38.34008, -85.79843)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2007
North Richland Hills, TX Tarrant Co. United States	City Point Dr. / City Point W (32.82773, -97.21840)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2015
Spring Creek, UT Utah Co. United States	S Mountain Vista Pkwy. / S Sierra Vista Way. (40.19060, -111.61533)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 54.8640	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2005). North leg added 2011-2013.
Lakeview South, UT Utah Co. United States	Lakeshore Dr. / 620 N (40.24248, -111.70994)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2018).
Lakeview North, UT Utah Co. United States	Lakeshore Dr. / W 1390 N (40.25277, -111.71290)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2016-2017).
Lakeview North, UT Utah Co. United States	W 1390 N / N 3350 W (40.25308, -111.71813)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2016
Orem, UT Utah Co. United States	W 575 S / S Sleepy Ridge Dr. (40.28674, -111.74051)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006).
Orem, UT Utah Co. United States	S Sleepy Ridge Dr. / S Fairway Ln. (40.28305, -111.74283)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2005
American Fork, UT Utah Co. United States	E 980 N / N 800 E (40.39768, -111.77392)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2012	Painted splitter islands. Year Completed estimated (2011-2013).
Cedar Hills, UT Utah Co. United States	Cottonwood Dr. / Nielsen Blvd. / N Ironwood Dr. / Bayhill Dr. (40.42261, -111.75720)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006).
Lehi, UT Utah Co. United States	N Toscana Hills Dr. / Morning Vista Rd. / W Chapel Ridge Rd. (40.44388, -111.87893)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2005
Bluffdale, UT Salt Lake Co. United States	Spring View Pkwy. / Peacock Midge Dr. / Pheasant Tail Dr. (40.49070, -111.92292)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2005
Salt Lake City, UT Salt Lake Co. United States	Wasatch Dr. / (university parking) (40.76877, -111.84068)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2018-2019). Replaced turnaround for on-street parking.
North Salt Lake, UT Davis Co. United States	Orchard Dr. / E Eaglegate Dr. (40.83459, -111.91224)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2011	Crosswalks next to circulatory roadway. Year Completed estimated (2010-2011).
Providence, UT Cache Co. United States	W 100 N / N Gateway Dr. (41.71010, -111.82917)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	Year Completed estimated (2011-2014).
Providence, UT Cache Co. United States	W 100 S / 485 W (41.70634, -111.83031)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2017-2018).
Miami, FL Miami-Dade Co. United States	SW 73rd Avenue Rd. / SW 35th St. (25.73754, -80.31535)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	2010
Cocoa, FL Brevard Co. United States	Donegal Dr. / Tralee Bay Ave. (28.25439, -80.70092)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2005	Painted splitter islands.
Fairborn, OH Greene Co. United States	Wright State Rd. / University Blvd. (39.78877, -84.05543)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2015	Edge line extensions across exits. Year Completed estimated (2014-2015).
Plymouth, IN Marshall Co. United States	Michigan Rd. / Veterans Pkwy. (41.37295, -86.31351)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 51.8160	Other (At-Grade) Single-Lane	2015
Goshen, IN Elkhart Co. United States	Dierdorff Rd. / Keystone Dr. (41.56426, -85.80461)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1999-2003).
South Bend, IN St. Joseph Co. United States	Portage Ave. / Lathrop St. / Highland Cemetery (41.70878, -86.27810)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Year Completed estimated (2007-2008).
Rogers, AR Benton Co. United States	Monte NE Rd. / Pleasant Ridge Rd. (36.32245, -94.10972)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2018	Through bypass lane on north leg.
Bentonville, AR Benton Co. United States	SW Bright Rd. / SW Gator Blvd. / SW Wentworth Ave. (36.32128, -94.23638)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 56.3880	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Left-only and left-through-right lanes on all four legs.
Baxter, MN Crow Wing Co. United States	Cypress Dr. / Excelsior Rd. (46.35480, -94.23405)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2018
Muscatine, IA Muscatine Co. United States	Mulberry Ave. / 2nd St. (41.42371, -91.04141)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.youtube.com/watch?v=nyJfLuvBF_A
Holy Cross, IA Dubuque Co. United States	US 52 / Holy Cross Rd. (42.59513, -90.98652)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	https://www.dyersvillecommercial.com/news/roundabout-completed-outside-of-holy-cross/image_abf4ba03-bd15-5801-928e-39c6e5ff2bfb.html
Johnston, IA Polk Co. United States	NW 70th Ave. / Peckham St. (41.68821, -93.74458)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	Year Completed estimated (2018-2019).
Ashland, MO Boone Co. United States	MO-M (E Broadway) / MO-Y / US 63 NB Ramps (38.77429, -92.25118)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2014	Year Completed estimated (2013-2015).
Ashland, MO Boone Co. United States	MO-M (E Broadway) / US 63 SB Ramps (38.77431, -92.25328)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2014	Year Completed estimated (2013-2015).
Wanamingo, MN Goodhue Co. United States	STH 60 / STH 57 (Main St.) (44.29785, -92.79077)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://kdhlradio.com/wanamingo-roundabout-opens-tomorrow-morning/
Boischatel, QC La Côte-de-Beaupré Regional County Municipality Canada	Rue Dugal / Rue de l'Estran (46.90396, -71.11098)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2000	Year Completed estimated (before 2007).
L’Assomption, QC L'Assomption Regional County Municipality Canada	Chemin du Golf / Rang Point du Jour N / Boulevard Lafortune (45.83759, -73.41587)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.0000	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2002-2005).
Terrebonne, QC Les Moulins Regional County Municipality Canada	Rue Rodrigue / Rue Michaud / (parking) (45.75778, -73.69477)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2009
Terrebonne, QC Les Moulins Regional County Municipality Canada	Rue Rodrigue / Rue Aline (45.75260, -73.69731)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2009
Mascouche, QC Les Moulins Regional County Municipality Canada	Avenue de la Gare / Avenue de l'Esplanade (45.72534, -73.60450)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.0000	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2008).
Terrebonne, QC Les Moulins Regional County Municipality Canada	Chemin Saint-Charles / Allée du Grand-Pic (45.71351, -73.49795)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.0000	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2012).
Terrebonne, QC Les Moulins Regional County Municipality Canada	Rue d'Angora / Rue de la Portneuf (45.71541, -73.65052)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.0000	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2013).
Terrebonne, QC Les Moulins Regional County Municipality Canada	Rue d'Angora / Rue des Tilleuls (45.71697, -73.64922)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 32.0000	Other (At-Grade) Single-Lane	2017
Pointe-Lebel, QC Manicouagan Regional County Municipality Canada	Boulevard Laflèche (Rte 138) / Chemin de la Scierie / Rue Granier (49.17599, -68.33833)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.0000	Other (At-Grade) Single-Lane	2005
Lake Country, BC Central Okanagan Canada	Lodge Rd. / Bottom Wood Lake Rd. (50.03469, -119.40189)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2012-2013).
Lake Country, BC Central Okanagan Canada	Bottom Wood Lake Rd. / Berry St. / Grant Crescent (Main St.) (50.02941, -119.40193)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2006-2010).
Kelowna, BC Central Okanagan Canada	University Way / Innovation Dr. / Hollywood Rd. (49.94106, -119.39019)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2005-2011).
Kelowna, BC Central Okanagan Canada	Hollywood Rd. / John Hindle Dr. / Hwy 97 NB Off-ramp / Hwy 97 SB On-ramp (49.93629, -119.39215)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.0000	Freeway Ramps (Grade-Separated) Single-Lane	2010	Year Completed estimated (2005-2011).
Kelowna, BC Central Okanagan Canada	Discovery Ave. / University Way / (parking) (49.93985, -119.39897)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Single-Lane	2018
West Kelowna, BC Central Okanagan Canada	Louie Dr. / Butt Rd. (49.83687, -119.61698)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.0000	Other (At-Grade) Single-Lane	2008	Right-turn bypass lane on west leg due to skew. Year Completed estimated (2006-2009).
West Kelowna, BC Central Okanagan Canada	Westlake Rd. / Stevens Rd. (49.86593, -119.56604)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2014).
Penticton, BC Okanagan-Similkameen Canada	Power St. / Wade Ave. / Vees Dr. / Park Dr. (49.49474, -119.60266)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2004-2009)
Kelowna, BC Central Okanagan Canada	Campbell Rd. / Hwy 97 SB Ramps (49.87891, -119.52320)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 40.0000	Freeway Ramps (Grade-Separated) Single-Lane	2008	Year Completed estimated (2006-2009).
West Kelowna, BC Central Okanagan Canada	Campbell Rd. / Hwy 97 NB Ramps (49.87847, -119.52412)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.0000	Freeway Ramps (Grade-Separated) Single-Lane	2008	Year Completed estimated (2006-2009).
Fitchburg, WI Dane Co. United States	E Cheryl Pkwy. / Fahey Glen (43.00451, -89.41212)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.1960	Other (At-Grade) Single-Lane	2002	Year Completed estimated (2000-2004). Third leg added 2018-2019; future fourth leg.
Madison, WI Dane Co. United States	Dayflower Dr. / Starr Grass Dr. (43.03834, -89.51671)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	1999	Year Completed estimated (before 2000).
Madison, WI Dane Co. United States	Mansion Hill Ave. / Starr Grass Dr. (43.03559, -89.52668)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2001	Year Completed estimated (2000-2003).
Madison, WI Dane Co. United States	Ancient Oak Ln. / Redan Dr. (43.04384, -89.54697)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2006
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
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/
Delta, BC Greater Vancouver Canada	Tilbury Connector / Progress Way / 80 St. / (unknown) / (unknown) (49.14014, -123.00090)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 68.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2013
Delta, BC Greater Vancouver Canada	Delsom Crescent / Delsom Way (49.15497, -122.92664)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2008	Splitter islands added 2014-2015.
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.