Roundabouts Database Index

29483 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
Casselberry, FL Seminole Co. United States	Melody Ln. / Triplet Lake Dr. / Jackson Ct. (28.67227, -81.33951)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2008).
Northglenn, CO Adams Co. United States	Melody Dr. / Kennedy Dr. (39.89222, -104.99270)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.6541	Other (At-Grade) Single-Lane	1999	Roundabout is single-lane except for NB approach with separate RT lane. ICD estimated from Google Maps linework.
Wellington, Wellington Region Lower Hutt New Zealand	Melling Link / Rutherford St. (-41.20538, 174.90821)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Elliptical shaped.
Wellington, Wellington Region Lower Hutt New Zealand	Melling Link / High St. / Pretoria St. (-41.20630, 174.90915)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Bowie, MD Prince George's Co. United States	Melford Blvd. / Science Dr. (38.96089, -76.71320)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.6480	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Concentric striping in circulatory roadway. ICD estimated from Google Maps linework.
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.
Melbourne, VIC Australia	Melbourne Rd. / North Rd. / Hall Rd. (-37.84479, 144.88475)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Melbourne, VIC Mornington Peninsula Australia	Melbourne Rd. / Hughes Rd. (-38.35799, 144.75737)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Melbourne, VIC Mornington Peninsula Australia	Melbourne Rd. / Canterbury Jetty Rd. (-38.37949, 144.78560)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Charlestown, IN Clark Co. United States	Melbourne Dr. / Hawthorne Glen / Covington Dr. (38.41763, -85.72569)	Other Unknown	Unknown Unknown	3 Approaches 7 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Dieppe, NB Westmorland Canada	Melanson Rd. / Dieppe Blvd. (46.07528, -64.69420)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.6553	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Glenwood Springs, CO Garfield Co. United States	Mel Ray Rd. / I-70 WB Ramps / US 6 (39.56142, -107.36127)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 44.1965	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2006	ICD estimated from Google Maps linework.
Glenwood Springs, CO Garfield Co. United States	Mel Ray Rd. / I-70 EB Ramps / Midland Ave. / Riverine Rd. (39.56019, -107.36139)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.9595	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2006	1 of 2 at Exit 114 on I-70, observed under construction in 2005. ICD estimated from Google Maps linework.
Port Wentworth, GA Chatham Co. United States	Meinhard Rd. / Benton Blvd. (32.18643, -81.22110)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2020
Sherwood, OR Washington Co. United States	Meinecke Pkwy. / Cedar Brook Way (45.36180, -122.85870)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.0842	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Tain, Scotland Highland United Kingdom	Meikle Ferry Roundabout [A9 (Moray Firth) / A836] (57.83092, -4.10612)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Greenville, MI Montcalm Co. United States	Meijer Dr. / Greenville West Dr. (43.17297, -85.27965)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4855	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2005). ICD estimated from Google Maps linework.
Καραβοστάσι, Λευκωσία Cyprus	Mehmet Akif Caddesi / Flamingo Yolu (35.13557, 32.83399)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Budapest, Budapest Hungary	Megyeri út / Homoktövis utca (47.59411, 19.11290)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Wildwood, FL Sumter Co. United States	Meggison Rd. / Morse Blvd. (28.79076, -81.97668)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 64.0080	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2020	Year Completed estimated (2019-2022).
Wildwood, FL Sumter Co. United States	Meggison Rd. / Hawkins Dr. (28.78955, -81.98197)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 64.0080	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2020	Year Completed estimated (2019-2022).
Wildwood, FL Sumter Co. United States	Meggison Rd. / Galloway Dr. (28.80147, -81.99511)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2020	Painted spirals in circulatory roadway. Year Completed estimated (2019-2021).
Wildwood, FL Sumter Co. United States	Meggison Rd. / Cason Hammock Path / St Catherine Cir. (28.79082, -81.97237)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 64.0080	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2020	Painted spiral in circulatory roadway. Year Completed estimated (2019-2022).
Wildwood, FL Sumter Co. United States	Meggison Rd. / Bexley Trl. / Marilee Pl. (28.78888, -81.96811)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 64.0080	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2020	Add-lane right-turn bypass lane on northwest leg. Year Completed estimated (2019-2022).
Menominee Falls, WI Waukesha Co. United States	Megal Ct. / (unknown) (43.18504, -88.10064)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2015	Fourth leg stubbed. Year Completed estimated (2015-2016).
Barnstable, MA Barnstable Co. United States	Meetinghouse Way (Rte 149) / US 6 EB / Service Rd. (41.69544, -70.38519)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.4815	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Bedford, NH Hillsborough Co. United States	Meetinghouse Rd. / Gault Rd. (42.94741, -71.49442)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 35.8432	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Buechel, KY Jefferson Co. United States	Meeting St. (38.32910, -85.56720)	Other Existing	Unknown Unknown	6 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Vlaardingen, South Holland Gemeente Vlaardingen Netherlands	Meester L.A. Kesperweg / Van Hogendorplaan / Schiedamseweg (51.91107, 4.36087)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Schoonhoven, South Holland Krimpenerwaard Netherlands	Meester Kesperplein [N210 / Pleinweg / H A Schreuderstraat] (51.95080, 4.84977)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Hillegom, South Holland Hillegom Netherlands	Meerlaan / Weerlaan / Olympiaweg (52.29022, 4.58940)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 25.5684	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Taradale, Hawke’s Bay Napier New Zealand	Meeanee Rd. / SH 2 (Hawkes Bay Expressway) SB Ramps (-39.53917, 176.86133)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		Raindrop shaped.
Taradale, Hawke’s Bay Napier New Zealand	Meeanee Rd. / SH 2 (Hawkes Bay Expressway) NB Ramps (-39.53899, 176.86017)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		Raindrop shaped.
Auckland, Auckland Auckland New Zealand	Medvale Ave. / Eastland Rd. / Nuneaton Dr. (-36.97561, 174.90123)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Peachtree Corners, GA Gwinnett Co. United States	Medlock Bridge Rd. NW / Peachtree Corners Cir. (33.97841, -84.21117)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.6062	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	ICD estimated from Google Maps linework.
Mediterra, FL Collier Co. United States	Mediterra Blvd. E / Lucarno Way / Glardino Ln. (26.30799, -81.75999)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Mediterra, FL Collier Co. United States	Mediterra Blvd. / Corso Mediterra Cir. (26.30965, -81.76771)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Mediterra, FL Collier Co. United States	Mediterra Blvd. (26.30926, -81.76466)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Building in central island.
Mediterra, FL Collier Co. United States	Mediterra Blvd E / Celebrita Ct. / Buonasera Ct. (26.30338, -81.75908)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
New Smyrna Beach, FL Volusia Co. United States	Medici Blvd. / Gallia St. (29.03465, -81.02830)	Other Existing	One-Way/Two-Way Stop Unknown	3 Approaches 1 Driveways 0.0000	Other (At-Grade) Unknown
Oteha, Auckland Auckland New Zealand	Medallion Dr. / Fernhill Way (-36.71850, 174.71655)	Roundabout Existing	All-Way Yield None	3 Approaches 3 Driveways	Other (At-Grade) Single-Lane
Chalco, NE Sarpy Co. United States	Meadows Pkwy. / Meadow Ridge Rd. (41.17162, -96.13438)	Other Existing	Other None	3 Approaches 1 Driveways 82.6008	Other (At-Grade) Single-Lane	1979	Mix of stop and yield control on entry.
Altoona, WI Eau Claire Co. United States	Meadowlark Ln. / Front Porch Pl. (44.82051, -91.46056)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1222	Other (At-Grade) Single-Lane	2016	https://www.google.com/maps/d/viewer?mid=1kRgB04jjoXd6tLLe0r20FJoxJMI&ll=44.82028420322557%2C-91.46035208710174&z=16. ICD estimated from Google Maps linework.
Trenton, NJ Mercer Co. United States	Meadowlark Dr. / Meadowlark Dr. (40.21770, -74.67986)	Other Existing	One-Way/Two-Way Stop Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Erie, PA Erie Co. United States	Meadowland Circle (42.06937, -80.05504)	Other Existing	Unknown Unknown	2 Approaches 11 Driveways 0.0000	Other (At-Grade) Unknown
Houston, TX Harris Co. United States	Meadowglen Ln. / Seagler Rd. (29.73162, -95.55486)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Single-Lane	2005
London, ON Middlesex Canada	Meadowgate Blvd. / Reardon Blvd. (42.96234, -81.18034)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 35.0000	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2006).
Gaston, SC Lexington Co. United States	Meadowfield Rd. / Woodtrail Dr. / Woodcrest Ln. / Sharpes Hill Rd. (33.81626, -81.15706)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 47.6294	Other (At-Grade) Single-Lane	2016	Replaced two closely spaced stop-controlled intersections. ICD estimated from Google Maps linework.
Prairie Village, KS Johnson Co. United States	Meadowbrook Pkwy. (38.96147, -94.64582)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
(unincorporated), TX Fort Bend Co. United States	Meadowbrook Farms Club Dr. / Parson Landing Dr. (29.71433, -95.79071)	Other Existing	All-Way Stop None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2004
Prosper, TX Collin Co. United States	Meadowbrook Blvd. / Lakewood Dr. (33.23044, -96.75974)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 33.5280	Other (At-Grade) Single-Lane	2017
Summerville, SC Berkeley Co. United States	Meadow Weed Rd. / (unknown) (33.09056, -80.20008)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1960	Other (At-Grade) Single-Lane	2019
Billings, MT Yellowstone Co. United States	Meadow View Dr. / Meadow View Dr. (45.78325, -108.59372)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2017	South leg stubbed. Year Completed estimated (2015-2018).
Suffolk, VA Suffolk City United States	Meadow View Blvd. / Meridian Pl. / Vineyard Pl. (36.85508, -76.46192)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Pedestrian access to central island.
Eden, NC Rockingham Co. United States	Meadow Rd. / Boone Rd. (36.50438, -79.75866)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9204	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
(unincorporated), GA Gwinnett Co. United States	Meadow Park Dr. / Meadow Park Ln. / Meadow Bluff Ln. / Dovecote Trl. (34.06361, -84.10306)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 75.1945	Other (At-Grade) Single-Lane	1998	ICD estimated from Google Maps linework.
American Fork, UT Utah Co. United States	Meadow Ln. / Pacific Dr. (40.38057, -111.81950)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.7524	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Mooresville, IN Morgan Co. United States	Meadow Lakes Dr. / (parking) (39.62448, -86.35528)	Other Existing	Uncontrolled None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Frisco, TX Collin Co. United States	Meadow Hill Dr. / Highland Ct. / Parkview Cir. (33.16318, -96.80569)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 18.2880	Other (At-Grade) Single-Lane	2023
Frisco, TX Collin Co. United States	Meadow Hill Dr. / Crestview Dr. (33.16281, -96.80749)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 18.2880	Other (At-Grade) Single-Lane	2023
Glen Innes, NSW Glen Innes Severn Australia	Meade St. / Grey St. (-29.73702, 151.73579)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
San Diego, CA San Diego Co. United States	Meade Ave. / Utah St. (32.75727, -117.13268)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	2020	Painted splitter islands and pedestrian crossings adjacent to circulatory roadway on north and south legs.
San Diego, CA San Diego Co. United States	Meade Ave. / Swift Ave. (32.75719, -117.11900)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.8600	Other (At-Grade) Single-Lane	2020	Painted splitter islands on north and south legs.
San Diego, CA San Diego Co. United States	Meade Ave. / Marlborough Ave. (32.75707, -117.10613)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-Lane	2021	Painted splitter islands on north and south legs. Pedestrian crossings adjacent to circulatory roadway on east and south legs.
San Diego, CA San Diego Co. United States	Meade Ave. / Central Ave. (32.75713, -117.10825)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-Lane	2021	Painted splitter island on north leg. One-way street entrance on south leg.
San Diego, CA San Diego Co. United States	Meade Ave. / 39th St. (32.75712, -117.11041)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-Lane	2021	Painted splitters and pedestrian crossings adjacent to circulatory roadway on north and south legs.
San Diego, CA San Diego Co. United States	Meade Ave. / 34th St. (32.75722, -117.12007)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-Lane	2020	Painted splitter islands on north and south legs.
Hampstead, MD Carroll Co. United States	MD-30 (Hampstead Bypass) / Business MD 30 (Hanover Pike) (39.63466, -76.86675)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 49.6684	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	ICD estimated from Google Maps linework.
Lisbon, MD Howard Co. United States	MD 94 / Old Frederick Rd. (Lisbon North) (39.34810, -77.06930)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.7839	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Lisbon, MD Howard Co. United States	MD 94 / MD 144 (39.33700, -77.07360)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	1993	First roundabout in Maryland. Built initially as temporary, made permanent after one month.
Hampstead, MD Carroll Co. United States	MD 88 / MD 833 (39.60434, -76.83682)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 34.0470	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Princess Anne, MD Somerset Co. United States	MD 822 (UMES Blvd.-Hickory Rd.) / MD 675 (Somerset Ave.) (38.21930, -75.69592)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.4712	Other (At-Grade) Single-Lane	2015	https://www.delmarvanow.com/story/news/local/maryland/2014/11/24/roundabout-umes-boulevard/70053440/ ICD estimated from Google Maps linework.
Urbana, MD Frederick Co. United States	MD 80 / Sugarloaf Pkwy. / Bennett Creek Blvd. (39.32467, -77.34974)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.6619	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	Rural ICD estimated from Google Maps linework.
Bel Air, MD Harford Co. United States	MD 7 / Holly Oaks Drive (39.48848, -76.21669)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.1039	Other (At-Grade) Single-Lane	1999	Opened September 1999. ICD estimated from Google Maps linework.
Aberdeen, MD Harford Co. United States	MD 7 (Philadelphia Rd.) / Seven Trails Dr. / (unknown) (39.48874, -76.22404)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.0861	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Mount Aetna, MD Washington Co. United States	MD 66 (Mapleville Rd.) / Mount Aetna Rd. (39.60243, -77.62425)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1703	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Cumberland, MD Allegany Co. United States	MD 639 Willow Brook Rd. / (Western Maryland Regional Medical Center - south entrance) (39.64659, -78.73184)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.7848	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2008-2009). ICD estimated from Google Maps linework.
Cumberland, MD Allegany Co. United States	MD 639 Willow Brook Rd. / (Western Maryland Regional Medical Center - north entrance) (39.64875, -78.73164)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.0248	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2008-2009). ICD estimated from Google Maps linework.
Temple Hills, MD Prince Georges Co. United States	MD 637 (Naylor Rd.) / Oxon Run Dr. (38.84986, -76.95789)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.4150	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Temple Hills, MD Prince Georges Co. United States	MD 637 (Naylor Rd.) / Good Hope Ave. (38.84922, -76.95655)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.6248	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Cearfoss, MD Washington Co. United States	MD 63 / MD 58 / MD 494 (Cearfoss Pike) (39.70017, -77.77593)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	1995	Completed December 1995.
Fruitland, MD Wicomico Co. United States	MD 513 Cedar Ln. / Division St. (38.32094, -75.61021)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 29.0471	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
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
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
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	MD 372 / Hilltop Rd. / Entrance to UMBC (39.25733, -76.71964)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.1417	Other (At-Grade) Single-Lane	1998	Functional Class: Collector ICD estimated from Google Maps linework.
Urbana, MD Frederick Co. United States	MD 355 / Sugarloaf Pkwy. (39.32862, -77.35193)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.8013	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Urbana, MD Frederick Co. United States	MD 355 / Sprigg St. (39.33070, -77.35654)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.4954	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Federalsburg, MD Caroline Co. United States	MD 307 / MD 313 / MD 318 (38.68938, -75.78949)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.4247	Other (At-Grade) Single-Lane	1999	Rural, installed for safety reasons Previously controlled by two-way stop ICD estimated from Google Maps linework.
Centreville, MD Queen Anne's Co. United States	MD 304 (Ruthsburg Rd.) / US 301 SB Ramps / Tidewater Dr. (39.02813, -76.02920)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.2563	Freeway Ramps (Grade-Separated) Single-Lane	2017	https://www.calvertbeacon.com/opening-new-us-301md-304-interchange/ ICD estimated from Google Maps linework.
Centreville, MD Queen Anne's Co. United States	MD 304 (Ruthsburg Rd.) / US 301 NB Ramps (39.02731, -76.02541)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.1124	Freeway Ramps (Grade-Separated) Single-Lane	2017	https://www.calvertbeacon.com/opening-new-us-301md-304-interchange/ ICD estimated from Google Maps linework.
Hampstead, MD Carroll Co. United States	MD 30 (Hampstead Bypass) / MD 482 (Hampstead Mexico Rd.) (39.61108, -76.86457)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3657	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	ICD estimated from Google Maps linework.
Hampstead, MD Carroll Co. United States	MD 30 (Hampstead Bypass) / Business MD 30 (Hanover Pike) (39.58178, -76.84261)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 56.1498	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	ICD estimated from Google Maps linework.
Millington, MD Kent Co. United States	MD 291 / US 301 SB Ramps (39.26463, -75.86641)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.4393	Freeway Ramps (Grade-Separated) Single-Lane	1999	Opened August 1999. ICD estimated from Google Maps linework.
Millington, MD Kent Co. United States	MD 291 / US 301 NB Ramps (39.26386, -75.86260)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.6656	Freeway Ramps (Grade-Separated) Single-Lane	1999	Opened August 1999. ICD estimated from Google Maps linework.
Elkton, MD Cecil Co. United States	MD 281 (Red Hill Rd.) / Muddy Ln. / Kemp Ln. (39.61811, -75.79733)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 37.7202	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2018) (streetview). ICD estimated from Google Maps linework.
North East, MD Cecil Co. United States	MD 273 (Telegraph Rd.) / Blue Ball Rd. (39.70019, -75.93167)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.9998	Other (At-Grade) Single-Lane	2019	ICD estimated from Google Maps linework.
Appleton, MD Cecil Co. United States	MD 273 (Telegraph Rd.) / Appleton Rd. (39.69858, -75.81417)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.7574	Other (At-Grade) Single-Lane	2016	https://www.cecildaily.com/business/construction-to-begin-on-two-roundabouts/article_a86c04d1-1da8-5e3a-927a-8f05b09e6c57.html ICD estimated from Google Maps linework.
Rising Sun, MD Cecil Co. United States	MD 273 (Rising Sun Rd.) / MD 276 (Jacob Tome Memorial Hwy.) (39.69595, -76.08018)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.5157	Other (At-Grade) Single-Lane	2003	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.