Roundabouts Database

29616 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
Newport News, VA

United States 		Thomas Wolfe St. / Phillip Roth St.
(37.08515, -76.48840) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
16.1970 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Rossville, MD
Baltimore Co.
United States 		Franklin Square Dr. / Upton Cir.
(39.35121, -76.48864) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Lexington Park, MD
St. Mary's Co.
United States 		FDR Blvd. / (parking) / (future road)
(38.28732, -76.48888) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2023 South leg stubbed. https://thebaynet.com/new-section-of-fdr-boulevard-opened-to-the-public/.
California, MD
St. Mary's Co.
United States 		Saint Georges Hundred / Saint Johns Cir. / Saint Michaels Cir.
(38.27383, -76.48964) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Annapolis, MD
Anne Arundel Co.
United States 		State Circle
(38.97890, -76.49063) 		Other
Existing 		Unknown
Unknown 		6 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Maryland State House in central island.
Newport News, VA
Newport News Co.
United States 		Avenue of the Arts / University Pl. / Shoe Ln.
(37.06211, -76.49220) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4977 		Other (At-Grade)
Single-Lane 		2005 Christopher Newport University entrance. ICD estimated from Google Maps linework.
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)
California, MD
St. Mary's Co.
United States 		Amber Dr. (FDR Blvd.) / Athlone Dr. / Meath Rd.
(38.28865, -76.49920) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2013-2019).
South Hill, NY
Tompkins Co.
United States 		Alumni Cir. / Conservatory Dr. / Grant Egbert Blvd.
(42.42153, -76.49961) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Stop control on circulatory roadway.
Suffolk, VA

United States 		Governors Pointe Dr. / Tindalls Ct. / Wentworth Ct.
(36.89513, -76.49969) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
24.8338 		Other (At-Grade)
Single-Lane 		2004 No splitter islands. ICD estimated from Google Maps linework.
Ithaca, NY
Tompkins Co.
United States 		Spencer St. / Elmira Rd. / Park St. / Albany St.
(42.43167, -76.50152) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
34.3790 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
California, MD
St. Mary's Co.
United States 		FDR Blvd. / Kinnegad Dr. / Castletown Way
(38.28887, -76.50263) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2013-2019).
Annapolis, MD
Anne Arundel Co.
United States 		Gateway Circle [MD 450 (West St.) / Taylor Ave. / Spa Rd.]
(38.97630, -76.50486) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1999 Elliptical shaped. ICD = 180 ft x 160 ft. Opened December 1999.
Saint Leonard, MD
Calvert Co.
United States 		Calvert Beach Rd. / MD 765 Saint Leonard Rd.
(38.47316, -76.50607) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
25.2460 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Newport News, VA
Newport News City
United States 		Siemens Way / McManus Blvd.
(37.13199, -76.50734) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
Dundalk, MD
Baltimore Co.
United States 		Dundalk Ave. / Sollers Point Rd.
(39.24534, -76.50786) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.9734 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
California, MD
St. Mary's Co.
United States 		FDR Blvd. / Old Rolling Rd.
(38.29057, -76.51176) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2015-2020).
Gloucester, VA
Gloucester Co.
United States 		W Main St. / Waltons Ln. / Fox Centre Pkwy.
(37.39841, -76.52674) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.9525 		Other (At-Grade)
Single-Lane 		2005 West of Route 17, near Walmart and Home Depot retail. ICD estimated from Google Maps linework.
Annapolis, MD
Anne Arundel Co.
United States 		Bywater Rd.
(38.96731, -76.52788) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Fleming, NY
Cayuga Co.
United States 		W Lake Rd. / White Bridge Rd. / Lake Ave. / Sand Beach Rd. / (park access)
(42.90470, -76.54446) 		Rotary
Existing 		Other
None 		5 Approaches
0 Driveways
109.7280 		Other (At-Grade)
Single-Lane 		Mixture of Yield and Stop signs.
(unincorporated), MD
Anne Arundel Co.
United States 		Arundel Beach Rd. / Leelyn Dr.
(39.07955, -76.54560) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.9594 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Deale, MD
Anne Arundel Co.
United States 		MD 256 / MD 258
(38.79327, -76.54586) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
34.4423 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
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.
Prince Frederick, MD
Calvert Co.
United States 		Oakland Hall Rd. / Abbott Ln. / Bunker Hill Rd.
(38.50147, -76.55177) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2014-2015).
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.
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.
Marietta, PA
Lancaster Co.
United States 		W Market St. / S Gay St.
(40.05620, -76.55728) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
30.1671 		Other (At-Grade)
Single-Lane 		Stop control on Gay Street; yield control on Market Street. Parking within square. ICD estimated from Google Maps linework.
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).
Kingston, ON
Frontenac
Canada 		Centennial Dr. / Venture Dr.
(44.27265, -76.55935) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
43.6137 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
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
Kingston, ON
Frontenac
Canada 		Resource Rd. / Centennial Dr.
(44.27700, -76.55971) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.0000 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2019).
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
Londontowne, MD
Anne Arundel Co.
United States 		Millhaven Dr. / Two Rivers Dr. / Tilden Way
(38.93715, -76.56159) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2006 Converted from open intersection. Year Completed estimated (2005-2006).
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.
Londontowne, MD
Anne Arundel Co.
United States 		Southdown Rd. / Landing Rd. / Decker Pl.
(38.93983, -76.57211) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Campbelltown, PA
Lebanon Co.
United States 		SR 117 / Northside Dr.
(40.28457, -76.57339) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.8879 		Other (At-Grade)
Single-Lane 		2011 Yield-controlled right-turn bypass lane on north leg. ICD estimated from Google Maps linework.
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
Maytown, PA
Lancaster Co.
United States 		N River St. / W High St.
(40.07541, -76.58208) 		Other
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
36.5559 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
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).
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.
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 		Prince Frederick Blvd. / Thoroughbred Dr. / Equestrian Way
(38.53171, -76.58916) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Kingston, ON
Frontenac
Canada 		Cataraqui Wood Dr. / Holden St.
(44.26729, -76.58991) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
23.9470 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Pasadena, MD
Anne Arundel Co.
United States 		Ashberry Ln. / Dewberry Ln. / Dewberry Cir.
(39.13099, -76.59326) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
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.
Friendship, MD
Anne Arundel Co.
United States 		Solomons Island Rd. (MD 2) / Friendship Rd. (MD 261) / Sansbury Rd.
(38.73656, -76.59379) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.0594 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Prince Frederick, MD
Calvert Co.
United States 		Cambridge Pl. / Allnutt Ct. / (parking)
(38.54943, -76.59467) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Kingston, ON
Frontenac
Canada 		Cataraqui Woods Dr. / Woodhaven Dr.
(44.26739, -76.59501) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
24.8022 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Prince Frederick, MD
Calvert Co.
United States 		Prince Frederick Blvd. / Chapline Place Blvd.
(38.55239, -76.59551) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-2003). Initially constructed as two-lane roundabout with concentric striped circulatory roadway. Converted to single-lane roundabout 2007-2009.
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.
Suffolk, VA
Suffolk City
United States 		Kings Grant Cir. / Queens Point Dr.
(36.77752, -76.59713) 		Other
Existing 		Unknown
Unknown 		3 Approaches
2 Driveways
0.0000 		Other (At-Grade)
Unknown 		Pedestrian access to central island.
Stewartstown, PA
York Co.
United States 		Bailey Dr. / (parking)
(39.75459, -76.59740) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Newfield Hamlet, NY
Tompkins Co.
United States 		Elira Rd. (Rte 13) / Trumbull Corners Rd. (Rte 133)
(42.36021, -76.59969) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
32.6531 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
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.
Baltimore, MD
Baltimore City
United States 		S President St. / Aliceanna St.
(39.28317, -76.60158) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on three legs.
Towson, MD
Baltimore Co.
United States 		MD 45 / MD 146 / Joppa Rd. / Allegheny Ave.
(39.40185, -76.60230) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
47.9892 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1998 Opened October 1998. Exit striping retrofitted to roundabout after opening. Hotdog/racetrack shape. ICD estimated from Google Maps linework. 21442
Baltimore, MD
Baltimore City
United States 		New Hope Circle
(39.29360, -76.60289) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Pedestrian access to central island. Parking along circulatory roadway.
Prince Frederick, MD
Calvert Co.
United States 		Frederick Blvd. / Auto Dr.
(38.56178, -76.60339) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2007-2009).
Dulaney Forest, MD
Baltimore Co.
United States 		E Ridgely Rd. / Margate Rd.
(39.43199, -76.60754) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.8120 		Other (At-Grade)
Single-Lane 		2013 No raised splitter islands on side street. Year Completed estimated (2012-2014).
Baltimore, MD
Baltimore City Co.
United States 		Guilford Ave. / 22nd St.
(39.31441, -76.61263) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
6.4682 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2012 ICD estimated from Google Maps linework.
Baltimore, MD
Baltimore City Co.
United States 		Guilford Ave. / E 24th St.
(39.31650, -76.61276) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
9.2400 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2012 ICD estimated from Google Maps linework.
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.
Baltimore, MD
Baltimore City Co.
United States 		Guilford Ave. / E 32nd St.
(39.32703, -76.61345) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-lane w/ Traversable Central Island 		2012
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.
Huntingtown, MD
Calvert Co.
United States 		Lorins Dr. / Cambridge Dr. / Stephanies Ln.
(38.60541, -76.61564) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands; pedestrian access to central island.
Baltimore, MD
Baltimore City
United States 		Washington Pl. / Mount Vernon Pl.
(39.29756, -76.61568) 		Signalized Roundabout/Circle
Existing 		Signal
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Lothian, MD
Anne Arundel Co.
United States 		MD 2 / MD 408 / MD 422
(38.82973, -76.61590) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.8423 		Other (At-Grade)
Single-Lane 		1995 Completed October 1995. ICD estimated from Google Maps linework.
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
Baltimore, MD
Baltimore City Co.
United States 		Canterbury Rd. / W 39th St.
(39.33569, -76.62047) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
16.6275 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2013 ICD estimated from Google Maps linework.
Glen Burnie, MD
Anne Arundel Co.
United States 		Hancock Ln. / Mayflower Cir.
(39.14357, -76.62097) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
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
Hershey, PA
Dauphin Co.
United States 		SR 322 / Meadow Ln
(40.27467, -76.62551) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.0936 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Lutherville-Timonium, MD
Baltimore Co.
United States 		MD 139 (Charles St.) / Bellona Ave.
(39.41790, -76.62900) 		Roundabout
Removed 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1999 Two-lane circulatory roadway across northern half.
Cockeysville, MD
Baltimore Co.
United States 		Lord Byron Ln. / Duke of York Ln.
(39.46487, -76.63164) 		Other
Existing 		Unknown
Unknown 		3 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Hershey, PA
Dauphin Co.
United States 		SR 322 / Homestead Ln
(40.27526, -76.63332) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.4484 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Medfield, MD
Baltimore City
United States 		Weldon Ave. / Elsa Terrace
(39.33803, -76.63881) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway; pedestrian access to central island.
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)
Baltimore, MD
Baltimore City Co.
United States 		Wilkens Ave / Mount St / Ramsey St
(39.28325, -76.64332) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
31.4310 		Other (At-Grade)
Single-Lane 		2001 Completed prior to 2002 ICD estimated from Google Maps linework.
Dunkirk, MD
Calvert Co.
United States 		Ward Rd. / (entrance to park)
(38.72220, -76.64529) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2021 https://southernmarylandchronicle.com/2021/07/02/section-of-ward-road-in-calvert-to-close-for-construction/
Glen Burnie, MD
Anne Arundel Co.
United States 		George Clausse Blvd. / (parking access)
(39.14768, -76.64935) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.3442 		Other (At-Grade)
Single-Lane 		2008 RT lanes on eastbound and northbound approaches. Part of shopping center. ICD estimated from Google Maps linework.
Gambrills, MD
Anne Arundel Co.
United States 		Grand Meadow Dr. / Ridings Way
(39.00615, -76.66270) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.4632 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
Gambrills, MD
Anne Arundel Co.
United States 		2498 Mt Tabor Rd
(38.99855, -76.66414) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
22.2765 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Park Lane, MD
Baltimore City
United States 		Pall Mall Rd. / Wylie Ave. / Edgecombe Cir. S
(39.34212, -76.66482) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway.
Williamsburg, VA
Williamsburg City Co.
United States 		Battery Blvd. / Commonwealth Ave.
(37.25257, -76.66771) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 Through arrows only on northeast entry even though lanes marked within roundabout as LT, LT-TH. Entry appears to have been modified by removing left-turn pavement marking arrows on entry and replacing with through arrows. No lane use signs. Year Completed estimated (2011-2014). 21442
Williamsburg, VA
Williamsburg City
United States 		Battery Blvd. / Green Hill St.
(37.25081, -76.67254) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway; pedestrian access to central island.
Williamsburg, VA
Williamsburg City
United States 		Northridge St. / Green Hill St.
(37.25266, -76.67321) 		Unknown
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Crofton, MD
Anne Arundel Co.
United States 		Cardinal Crest Dr. / Hallwood Ct. / Dalewood Ct. / Thornbury Ct.
(38.99364, -76.67343) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Mix of stop and uncontrolled; no splitter islands.
Williamsburg, VA
Williamsburg City Co.
United States 		Battery Blvd. / Redoubt Rd.
(37.25003, -76.67504) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2011-2014) as three-leg roundabout.
Gambrills, MD
Anne Arundel Co.
United States 		Nancarles Dr. / Kirchner Ln.
(38.98934, -76.68111) 		Other
Existing 		Unknown
Unknown 		3 Approaches
2 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Crofton, MD
Anne Arundel Co.
United States 		Walden Dr. / Chapman Rd. / Windy Oak Ct.
(39.02364, -76.68366) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Odenton, MD
Anne Arundel Co.
United States 		MD 175 / MD 677 / Higgins Dr.
(39.07831, -76.68481) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
57.9120 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 Reduced from two lanes to one lane in 2010. 21442
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.
Baltimore, MD
Baltimore City Co.
United States 		Old Frederick Road / Maple Wood Road
(39.29094, -76.69283) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.8815 		Other (At-Grade)
Single-Lane 		2013 4th leg not built yet - for future development ICD estimated from Google Maps linework.
Mount Washington, MD
Baltimore Co.
United States 		Quarry Lake Dr. / Stone Cliff Dr.
(39.38398, -76.69603) 		Other
Existing 		Other
Unknown 		2 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Uncontrolled entry on southeast leg.
Mays Chapel, MD
Baltimore Co.
United States 		Ridgemont Rd.
(39.45142, -76.69629) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Hanover, MD
Anne Arundel Co.
United States 		Ridge Rd. / Corporate Center Dr.
(39.19204, -76.70216) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.4719 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Odenton, MD
Anne Arundel Co.
United States 		Piney Station Way / Black Oak Way / Barred Owl Way
(39.05532, -76.70351) 		Other
Existing 		Uncontrolled
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Bowie, MD
Prince George's Co.
United States 		Melford Blvd. / Curie Dr.
(38.95842, -76.70683) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
78.9406 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Odenton, MD
Anne Arundel Co.
United States 		Town Center Blvd. / Odenton Landing Way / Odenton Ave.
(39.09810, -76.70709) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2018 Year Completed estimated (2017-2018).
Odenton, MD
Anne Arundel Co.
United States 		Strawberry Lake Way / Field Farm Way / Found Artifact Ct.
(39.05052, -76.70858) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Oval shaped. Mix of stop and yield control.