Roundabouts Database Index

29679 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
Lake Arbor, MD Prince George's Co. United States	Lake Arbor Way / Fairlakes Pl (38.90717, -76.82304)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Owings Mills, MD Baltimore Co. United States	Upper Mill Dr. / Bluestem Ct. /Spring Willow Ct. / Bayline Cir. (39.41253, -76.82032)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Silver Spring, MD Montgomery Co. United States	Woodmoor Dr. / Lexington Dr. (39.02215, -77.00818)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Potomac, MD Montgomery Co. United States	Old Seven Locks Rd. / Quarry Manor Terrace (38.99371, -77.16028)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Elkridge, MD Howard Co. United States	Toomey Ln. / Fairlee Rd. (39.21083, -76.71160)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 27.4320	Other (At-Grade) Single-Lane	2002
Prince Frederick, MD Calvert Co. United States	MD 402 Dares Beach Rd. / Armory Rd. (38.54877, -76.58590)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2014
Prince Frederick, MD Calvert Co. United States	Silverwood Ln. / English Oak Ln. / Running Brook Way (38.54713, -76.58000)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2007
Huntingtown, MD Calvert Co. United States	Queensberry Dr. / Larkspur Ct. (38.58450, -76.55968)	Other Existing	Unknown Unknown	3 Approaches 4 Driveways 0.0000	Other (At-Grade) Single-Lane
Chesapeake Beach, MD Calvert Co. United States	Harrison Blvd. / Sansbury Dr. (38.69561, -76.55797)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	1997	Year Completed estimated (1993-2004).
Owings, MD Calvert Co. United States	Cross Point Dr. / Paulyn Dr. (38.71532, -76.61335)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Owings, MD Calvert Co. United States	Cross Point Dr. / Blue Sky Ct. / Bear Claw Ct. (38.71468, -76.61554)	Other Existing	Unknown Unknown	3 Approaches 4 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Owings, MD Calvert Co. United States	Good Shepherd Way / Megatha Ln. (38.71846, -76.62480)	Other Existing	Uncontrolled Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Prince Frederick, MD Calvert Co. United States	Skipjack Rd. / Ketch Rd. (38.51100, -76.64140)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)
Huntingtown, MD Calvert Co. United States	Huntsman Dr. / Horse Pen Run / Hardesty Rd. (38.57357, -76.54875)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Huntingtown, MD Calvert Co. United States	Queensberry Dr. / Carlon Ct. / Duchess Ln. / (unknown) (38.58381, -76.55492)	Other Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Huntingtown, MD Calvert Co. United States	Mairfield Ln. / Liberty Ln. / Fairwood Dr. (38.60411, -76.58464)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2014	Painted splitter islands added 2017.
Huntingtown, MD Calvert Co. United States	Marley Run / Channel Ct. / Plainview Dr. (38.60911, -76.59709)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Huntingtown, MD Calvert Co. United States	Barberry Dr. / Spears Rd. / Blueberry Ct. (38.62290, -76.59347)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Odenton, MD Anne Arundel Co. United States	Piney Orchard Pkwy. / Roaming Ridge Way / Village Center Dr. (39.06702, -76.71951)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Year Completed estimated (2002-2004).
Laurel, MD Howard Co. United States	Weathered Stone Way / Boulder Ridge Rd. / Stone Lake Dr. (39.13774, -76.84066)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Laurel, MD Howard Co. United States	Boulder Ridge Rd. / Polished Pebble Way (39.13864, -76.84358)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Ellicott City, MD Howard Co. United States	Columbia Rd. / Hemlock Cone Way / Kingscup Ct. (39.24949, -76.83326)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-lane w/ Traversable Central Island	2019
Columbia, MD Howard Co. United States	Stevens Forest Rd. / Farewell Rd. / Night Street Hill (39.20114, -76.84781)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-lane w/ Traversable Central Island	2019
Rockville, MD Montgomery Co. United States	Henderson Circle (39.08800, -77.16702)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
North Potomac, MD Montgomery Co. United States	Bald Cypress Dr. / Willow Tree Dr. / Cherrydale Dr. (39.08158, -77.20120)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Rockville, MD Montgomery Co. United States	Valley Dr. / Aqua Ln. (39.07945, -77.20575)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Gaithersburg, MD Montgomery Co. United States	Parkview Ave. / Uptown St. (39.15334, -77.22619)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2012	Right-turn-only lane on northwest leg. Year Completed estimated (2011-2012).
Clarksburg, MD Montgomery Co. United States	Granite Rock Rd. / Grand Elm St. (39.24126, -77.26647)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Clarksburg, MD Montgomery Co. United States	Saint Clair Rd. / Timber Creek Ln. / Brewers Tavern Terrace / (unknown) (39.23680, -77.27531)	Other Existing	Unknown Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Bel Air, MD Harford Co. United States	Thomas Run Rd. / Cross Campus Dr. (39.56164, -76.28699)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2012
Bel Air South, MD Harford Co. United States	Laurel Bush Rd. / Falkland Dr. / Dowers Rd. (39.48330, -76.29847)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2013-2017).
Brandywine, MD Prince George's Co. United States	MD 373 / Accokeek Rd. / MD 5 (Branch Ave.) SB On-Ramp (38.70076, -76.87599)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2019	MD 5 (Branch Ave.) was converted to limited access. https://www.thebaynet.com/articles/0419/newtrafficshiftstartsinbrandywineareathursday.html.
Catonsville, MD Baltimore Co. United States	Research Park Dr. (39.24868, -76.71406)	Other Existing	Uncontrolled Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Catonsville, MD Baltimore Co. United States	Hidden Bludd Cir. / Jacks Ct. (39.25966, -76.71926)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Westminster, MD Carroll Co. United States	Old Westminster Pike / N Chandler Dr. (39.55808, -76.97130)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2018).
Reisterstown, MD Baltimore Co. United States	Long Ridge Rd. / Barto Ln. (39.47055, -76.73195)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Accokeek, MD Prince George's Co. United States	St Mary's View Rd. / Lusby Ridge Rd. (38.69721, -76.95157)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane		No splitter island on south leg.
Saint Charles, MD Charles Co. United States	Lexington Dr. / Montpelier Dr. (38.64225, -76.96877)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Upper Marlboro, MD Prince George's Co. United States	George Hilleary Terrace (38.84772, -76.74269)	Other Existing	Unknown Unknown	2 Approaches 2 Driveways 0.0000	Other (At-Grade) Single-Lane
Upper Marlboro, MD Prince George's Co. United States	Symondsbury Way / Galeshead Dr. (38.85587, -76.73628)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Upper Marlboro, MD Prince George's Co. United States	Nancy Gibbons Terrace (38.85592, -76.74356)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Davidsonville Historic District, MD Prince George's Co. United States	Science Dr. / Curie Dr. (38.96399, -76.70897)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Davidsonville Historic District, MD Prince George's Co. United States	Science Dr. / (parking) (38.96068, -76.71428)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Bethesda, MD Montgomery Co. United States	Boxwood Rd. / Spangler Ave. (38.94781, -77.10888)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Bethesda, MD Montgomery Co. United States	Tournay Rd. / Spangler Ave. (38.94811, -77.11053)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
(unincorporated), MD Montgomery Co. United States	Travilah Rd. / Turkey Foot Rd. / Hanson Farm Dr. (39.07993, -77.25560)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2020	Painted splitter islands. Year Completed estimated (2019-2020).
Germantown, MD Montgomery Co. United States	Crossview Rd. / Autumn Crest Rd. (39.16717, -77.30075)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Germantown, MD Montgomery Co. United States	Crestmount Rd. / Kings Crossing Rd. (39.16175, -77.30841)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Germantown, MD Montgomery Co. United States	Kings Crossing Blvd. / Cornflower Rd. (39.16222, -77.30397)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Germantown, MD Montgomery Co. United States	Kings Crossing Blvd. / Ashmeade Rd. (39.16235, -77.29971)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane		Painted splitter islands. Pedestrian crossings next to circulatory roadway.
Germantown, MD Montgomery Co. United States	Ashleigh Greene Rd. / Ashmeade Rd. (39.16013, -77.29900)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Germantown, MD Montgomery Co. United States	Ashleigh Greene Rd. / Cornflower Rd. (39.15879, -77.30324)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Germantown, MD Montgomery Co. United States	Wonderland Way / Chalet Dr. (39.15516, -77.27464)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Pasadena, MD Anne Arundel Co. United States	Creekside Village Blvd. / Oak Creek Dr. (39.16938, -76.57165)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter island on southeast leg.
Annapolis, MD Anne Arundel Co. United States	Church Circle (38.97848, -76.49269)	Other Existing	Unknown Unknown	7 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (3+ Lane)
Annapolis, MD Anne Arundel Co. United States	Main St. / Randall St. (38.97746, -76.48722)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Annapolis, MD Anne Arundel Co. United States	King George St. / Turner Joy Rd. / Brownson Rd. (38.97776, -76.48280)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		On campus of US Naval Academy.
Parole, MD Anne Arundel Co. United States	Riva Trace Pkwy. / Winters Chase Way (38.96098, -76.56114)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Flintstone, MD Allegany Co. United States	Lake Shore Dr. / (parking) (39.69941, -78.65115)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Unknown Unknown
Villages of Winterset, MD Baltimore Co. United States	Runnymeade Rd. / New Town Blvd. / Bon Haven Ln. (39.39893, -76.81700)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Owings Mills, MD Baltimore Co. United States	New Town Blvd. / Rangeford Dr. (39.40957, -76.80654)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Abingdon, MD Harford Co. United States	Four Seasons Dr. / Raking Leaf Dr. / Raking Leaf Dr. / Indian Summer Ct. (39.45387, -76.28951)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2006	Painted splitter islands. Pedestrian crossings at entrance lines. Year Completed estimated (2005-2007).
Aiken's Tavern Historic District, MD Cecil Co. United States	Thomas Jefferson Terrace / Patriots Way (39.61821, -75.80337)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Aiken's Tavern Historic District, MD Cecil Co. United States	Park Pl. (39.61573, -75.83392)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Solomons, MD Calvert Co. United States	Farren Ave. / Charles St. (38.31939, -76.45267)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-lane w/ Traversable Central Island	2008	Painted splitter islands. Year Completed estimated (2007-2009).
Westminster, MD Carroll Co. United States	(Carroll Community College entrance) / (parking) (39.53096, -76.99236)	Other Existing	One-Way/Two-Way Stop Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Linganore, MD Frederick Co. United States	Finn Dr. / Douglas Ave. / Huckleberry Way (39.40210, -77.29509)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island. No splitter islands.
Wormans Mill, MD Frederick Co. United States	Palatine Dr. / Island Grove Blvd. (39.46038, -77.38314)	Other Existing	Unknown Unknown	3 Approaches 3 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island. No splitter islands.
South Laurel, MD Prince George's Co. United States	Frost Pl. / (parking) (39.09016, -76.90091)	Other Existing	Unknown Unknown	2 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-Lane
Ellicott City, MD Howard Co. United States	Academy Rd. / Hillsborough Rd. / Chews Vineyard (39.24993, -76.78913)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Columbia, MD Howard Co. United States	Vantage Point Rd. (39.22074, -76.85392)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Columbia, MD Howard Co. United States	Charter Dr. / (parking) (39.21273, -76.88310)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2013	Converted from cul-de-sac. Year Completed estimated (2011-2014).
Bel Air, MD Harford Co. United States	English Manor Ln. / Squire Ln. / Canterbury Rd. (39.52643, -76.36371)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
College Park, MD Prince George's Co. United States	Stadium Dr. / Alumni Dr. (38.99151, -76.94948)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)
College Park, MD Prince George's Co. United States	Fieldhouse Dr. / Presidential Dr. (38.98872, -76.95237)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Greenbelt, MD Prince George's Co. United States	Golden Triangle Dr. / (parking) (38.99762, -76.89644)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Frederick, MD Frederick Co. United States	Greenleese Circle (39.44847, -77.37242)	Other Existing	Unknown Unknown	2 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-Lane
Frederick, MD Frederick Co. United States	Synergy Way / Progress Dr. (39.43796, -77.36660)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2008
Frederick, MD Frederick Co. United States	Synergy Way (39.43898, -77.36665)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011).
Middletown, MD Frederick Co. United States	Smithfield Dr. / Layla Dr. / Hoffman Dr. (39.44814, -77.52097)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Bel Air, MD Harford Co. United States	Old Joppa Ct. / Hoskins Terrace (39.51380, -76.37506)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2014-2017).
Pikesville, MD Baltimore Co. United States	Travertine Dr. (39.38721, -76.68990)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Parking along circulatory roadway; pedestrian access to central island.
Owings Mills, MD Baltimore Co. United States	Painters Mill Rd. / Lyons Mill Rd. (39.39425, -76.78747)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)
Konterra, MD Prince George's Co. United States	Belle Chasse Blvd. / Belle Chasse Blvd. (north) (39.07820, -76.87960)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Konterra, MD Prince George's Co. United States	Belle Chasse Blvd. / Belle Chasse Blvd. (southwest) (39.07731, -76.88037)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Konterra, MD Prince George's Co. United States	Belle Chasse Blvd. / Belle Chasse Blvd. (southeast) (39.07714, -76.87923)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Konterra, MD Prince George's Co. United States	Belle Chasse Blvd. / (parking) (west) (39.07512, -76.88073)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Konterra, MD Prince George's Co. United States	Belle Chasse Blvd. / (parking) (east) (39.07499, -76.87964)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Konterra, MD Prince George's Co. United States	Belle Chasse Blvd. / Belle Chasse Blvd. (south) (39.07274, -76.88060)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Laurel, MD Prince George's Co. United States	W Side Blvd. / (parking) (39.08512, -76.89003)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Calverton, MD Prince George's Co. United States	Bay Hill Dr. / Innisbrook Dr. (39.06579, -76.92532)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Robinwood, MD Washington Co. United States	Professional Blvd. / Yale Dr. (39.63069, -77.68089)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	Striped spiraling. Year Completed estimated (2015-2016). 21442.
Hagerstown, MD Washington Co. United States	Observatory Dr. / Meridian Dr. (39.61678, -77.67508)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2003	Year Completed estimated (1999-2005).
Aberdeen, MD Harford Co. United States	Heathland Trl. / Spindrift Rd. / Bentgrass Dr. (39.49427, -76.20490)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Easton, MD Talbot Co. United States	Lakelands Dr. / Superior Cir. (38.74048, -76.06518)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands on three legs.
White Marsh Station, MD Baltimore Co. United States	Carrington Dr. / Jerome Ave. (39.40574, -76.40236)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Urbana, MD Frederick Co. United States	Hartwick Ln. / Singleton Terrace (39.33399, -77.33970)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Urbana, MD Frederick Co. United States	Royal Crest Cir. / Aberdeen Way (39.34020, -77.33396)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Urbana, MD Frederick Co. United States	Braidwood Dr. / Ethan Ridge Ave. (39.34386, -77.32911)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2008-2009).
Baltimore, MD Baltimore City United States	Whetstone Way / (parking) (39.26820, -76.60021)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.