Roundabouts Database

28784 Results

Search by location, intersection, and comments with the Quick Search below. You can search all other attributes by clicking Advanced Search. Sort results by clicking the headers of any column. Click the Intersection name for a details and aerial view. Search results pages can be bookmarked. Results can be exported to KML for viewing in Google Earth.


Search Advanced Search Export as KML
City, State
County
Country 		Intersection
(Lat, Lng) 		Type
Status 		Control Type / Other Control Type Approaches / Driveways / ICD (m) Functional Class /
LaneType 		Year Completed Comments
Virginia Footills, NV
Washoe Co.
United States 		Buchephalus Pkwy. / Copenhagen Way / Bonfire Ln.
(39.43838, -119.71442) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Terre Haute, IN
Vigo Co.
United States 		2440 Huber Ln
(39.43817, -87.38012) 		Traffic Calming Circle
Existing 		Unknown
None 		2 Approaches
4 Driveways
23.0598 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Terre Haute, IN
Vigo Co.
United States 		2328 Huber Ln
(39.43817, -87.38160) 		Traffic Calming Circle
Existing 		Unknown
None 		2 Approaches
2 Driveways
23.0598 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Terre Haute, IN
Vigo Co.
United States 		2216 Huber Ln
(39.43806, -87.38327) 		Traffic Calming Circle
Existing 		Unknown
None 		1 Approaches
2 Driveways
23.0599 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
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
Virginia Footills, NV
Washoe Co.
United States 		Bucephalus Pkwy. / Show Jumper Ln.
(39.43790, -119.71097) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2015 Painted splitter islands on north and south legs. Year Completed estimated (2014-2015).
(unincorporated), CO
Douglas Co.
United States 		Fox Sparrow Rd. / Windhaven Dr.
(39.43781, -104.73199) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.7495 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Virginia Footills, NV
Washoe Co.
United States 		Bucephalus Pkwy. / Burmese Ln. / Show Jumper Ln.
(39.43756, -119.70732) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on north and south legs.
Townsend, DE
New Castle Co.
United States 		Tony Marchio Dr. / Campus Dr. / Stadium Way
(39.43676, -75.64873) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Concentric striping on circulatory roadway. Right-turn-only arrows in all lanes of three entries. Year Completed estimated (2011-2015).
Reno, NV
Washoe Co.
United States 		Burghley Ln. / Kerrydale Ct.
(39.43443, -119.71424) 		Other
Existing 		Unknown
Unknown 		2 Approaches
5 Driveways
0.0000 		Other (At-Grade)
Unknown
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).
Virginia Footills, NV
Washoe Co.
United States 		Burghley Ln. / Calais Ln.
(39.43197, -119.71530) 		Unknown
Existing 		Unknown
Unknown 		3 Approaches
4 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Egg Harbor, NJ
Atlantic Co.
United States 		Tilton Road Circle
(39.43177, -74.57915) 		Signalized Roundabout/Circle
Existing 		Signal
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Hamburger shaped.
Montalto Uffugo, Calabria
Cosenza
Italy 		SP248 (Corso Italia) / SP102 (Via Alessandro Manzoni)
(39.43119, 16.23146) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Parachute, CO
Garfield Co.
United States 		Old Hwy 6 / I-70 WB Ramps
(39.42982, -108.07610) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
51.8160 		Freeway Ramps (Grade-Separated)
Single-Lane 		2012
Castle Rock, CO
Douglas Co.
United States 		Sapphire Pointe Blvd. / Tremolite Dr.
(39.42908, -104.85397) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
52.5832 		Other (At-Grade)
Single-Lane 		2005 No buffer between sidewalk and circulatory roadway. ICD estimated from Google Maps linework.
Sykesville, MD
Carroll Co.
United States 		Old Washington Rd. (MD 97) / W Old Liberty Rd.
(39.42906, -77.00755) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.1330 		Other (At-Grade)
Single-Lane 		2000 Year Completed estimated (1995-2005). ICD estimated from Google Maps linework.
Reisterstown, MD
Baltimore Co.
United States 		Winged Foot Dr. / Crystal Downs Ct. / Kauri Cliffs Rd.
(39.42897, -76.81445) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Middletown, DE
New Castle Co.
United States 		St Annes Church Rd. / Levels Rd.
(39.42842, -75.73887) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.9783 		Other (At-Grade)
Single-Lane 		2010 Intersection was relocated when converted to roundabout. ICD estimated from Google Maps linework.
(unincorporated), CO
Douglas Co.
United States 		W Happy Canyon Rd. / Castle Pines Dr.
(39.42838, -104.90106) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.8306 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Parachute, CO
Garfield Co.
United States 		Old Hwy 6 / I-70 EB Ramps / (unknown)
(39.42828, -108.07440) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
57.9120 		Freeway Ramps (Grade-Separated)
Single-Lane 		2012
Castle Rock, CO
Douglas Co.
United States 		Sapphire Pointe Blvd. / Sulfur Ln. / Peridot Ln.
(39.42788, -104.84576) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
63.6545 		Other (At-Grade)
Single-Lane 		2003 Single-stage pedestrian crossings, fully traversable splitter islands, no buffer between sidewalk and circulatory roadway. Year Completed estimated (2002-2005). ICD estimated from Google Maps linework.
Montalto Uffugo, Calabria
Cosenza
Italy 		SP241 (Corso Italia) / Via Busento
(39.42609, 16.23949) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Martinsville, IN
Morgan Co.
United States 		SR 252 (Morgantown Rd.) / I-69 SB Ramps / Hospital Dr.
(39.42578, -86.40211) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2021 Replaced at-grade signalized intersection. Opened to traffic 12/2021. https://i69finishline.com/construction-schedule/.
Virginia Footills, NV
Washoe Co.
United States 		McCauley Ranch Blvd. / Gold Mine Dr.
(39.42575, -119.70909) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2007 Painted splitter islands on all legs.
Middletown, DE
New Castle Co.
United States 		St Annes Church Rd. / Wiggins Mill Rd.
(39.42541, -75.72769) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.1348 		Other (At-Grade)
Single-Lane 		2010 Previous intersection was relocated when converted to roundabout. ICD estimated from Google Maps linework.
Chillicothe, OH
Ross Co.
United States 		SR 159 / SR 180
(39.42539, -82.95429) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.facebook.com/ODOTDistrict9/videos/ross-207-extension-first-trip/344554030308290/
Martinsville, IN
Morgan Co.
United States 		SR 252 (Morgantown Rd.) / I-69 NB Ramps
(39.42498, -86.40092) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2021 Replaced at-grade signalized intersection.
Castle Rock, CO
Douglas Co.
United States 		Castle Rock Pkwy. / Promenade Pkwy. / I-25 SB Off-Ramp / I-25 NB Ramps
(39.42427, -104.87786) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.3611 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2016 ICD estimated from Google Maps linework.
Martinsville, IN
Morgan Co.
United States 		SR 252 (Morgantown Rd.) / Cramertown Loop
(39.42394, -86.39938) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 Opened 12/2021 as part of the I-69 opening around Martinsville. https://i69finishline.com/construction-schedule/.
Castle Rock, CO
Douglas Co.
United States 		Promenade Pkwy. / (parking lot)
(39.42238, -104.87869) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.5233 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2016 ICD estimated from Google Maps linework.
Linganore, MD
Frederick Co.
United States 		Woodridge Rd. / Woodland Rd.
(39.42155, -77.32956) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Owings Mills, MD
Baltimore Co.
United States 		Tollgate Rd. / Lastgage Rd.
(39.42149, -76.78482) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.6010 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Liberty Township, OH
Butler Co.
United States 		Aspenwood Dr. / Aspen Trail Blvd.
(39.42119, -84.44619) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.7559 		Other (At-Grade)
Single-Lane 		2003 No splitter islands. ICD estimated from Google Maps linework.
Terre Haute, IN
Vigo Co.
United States 		Willow Run Ct. / Aspen Ct. / Magnolia Ct.
(39.42072, -87.32787) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
101.4886 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Hanover Township, OH
Butler Co.
United States 		Stahlheber Rd. / Morman Rd.
(39.42038, -84.64629) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2023
Townsend, DE
New Castle Co.
United States 		N Odessa Blvd. / Tweedsmere Dr. / Aviemore Dr. / Ravenglass Dr.
(39.41965, -75.63644) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Chillicothe, OH
Ross Co.
United States 		SR 159 / SR 207
(39.41938, -82.95615) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.facebook.com/ODOTDistrict9/videos/ross-207-extension-first-trip/344554030308290/
Linganore, MD
Frederick Co.
United States 		Boyers Mill Rd. / Eaglehead Dr.
(39.41912, -77.30650) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2018
Castle Rock, CO
Douglas Co.
United States 		Promenade Pkwy. / (parking lots)
(39.41882, -104.87797) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.5192 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2016 ICD estimated from Google Maps linework.
Castle Rock, CO
Douglas Co.
United States 		Castle Oaks Dr. / Arabella Dr.
(39.41863, -104.77860) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2006
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.
Liberty Township, OH
Butler Co.
United States 		Kyles Station Rd. / Lesourdsville West Chester Rd.
(39.41743, -84.43708) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.5974 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Castle Rock, CO
Douglas Co.
United States 		N Meadows Dr. / (unknown)
(39.41690, -104.89226) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2021
Silver Springs, NV
Lyon Co.
United States 		US 50 / Alt US 95
(39.41616, -119.22497) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://mynews4.com/news/local/new-us-5095a-traffic-roundabout-to-open-in-silver-springs-tomorrow
Townsend, DE
New Castle Co.
United States 		Robinson Rd. / Goldsborough Dr.
(39.41614, -75.65156) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on three legs.
Liberty Township, OH
Butler Co.
United States 		Kyles Station Rd. / Yankee Rd.
(39.41489, -84.38421) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.5988 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Terre Haute, IN
Vigo Co.
United States 		IN-46 / IN-641 SB Ramps
(39.41463, -87.33553) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane 		2016
Liberty Township, OH
Butler Co.
United States 		Kyles Station Rd. / Cincinnati Dayton Rd.
(39.41390, -84.36743) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.5994 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Castle Rock, CO
Douglas Co.
United States 		New Beale St. / (parking)
(39.41325, -104.87702) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2006-2008).
Sykesville, MD
Carroll Co.
United States 		Bennett Rd. / Monroe Ave.
(39.41306, -76.92967) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.7590 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Frederick, MD
Frederick Co.
United States 		Hillsborough Dr. / Hillsborough Terrace / Forest Hills Ct.
(39.41266, -77.34441) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Terre Haute, IN
Vigo Co.
United States 		IN-46 / IN-641 NB Ramps
(39.41253, -87.33459) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.9093 		Freeway Ramps (Grade-Separated)
Single-Lane 		2016 ICD estimated from Google Maps linework.
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.
Fort Bragg, CA
Mendocino Co.
United States 		Hwy 1 / Simpson Ln.
(39.41239, -123.80830) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
52.5958 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Joppa, MD
Harford Co.
United States 		Trimble Rd. / Fort Hoyle Rd.
(39.41183, -76.33325) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2013).
Perry Hall, MD
Baltimore Co.
United States 		Seven Courts Dr. / Proctor Ln.
(39.41060, -76.48483) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2008 Year Completed estimated (2007-2008).
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
Townsend, DE
New Castle Co.
United States 		Glen Mohr Dr. / Perthshire Dr. / S Odessa Blvd.
(39.40908, -75.63633) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Casal da Boavista de São Gregório, Leiria
Caldas da Rainha
Portugal 		Rua Doutor Vieira Pereira / Rua Inseparáveis De Lubango / Rua da Crocha
(39.40878, -9.12190) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified)
Montalto Uffugo, Calabria
Cosenza
Italy 		SP247 (Via Sila) / Via Coretta
(39.40860, 16.25275) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Frederick, MD
Frederick Co.
United States 		Claridge Dr. S / Spring Ridge Pkwy.
(39.40767, -77.33577) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
2 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2002 Painted splitter islands on two legs. Year Completed estimated (1988-2005).
Owings Mills, MD
Baltimore Co.
United States 		Grand Central Ave. / Waverly Ln.
(39.40713, -76.78413) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2014 Year Completed estimated (2011-2014). West leg added 2015.
Rose, Calabria
Cosenza
Italy 		SP234 / SP247
(39.40709, 16.26141) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Frederick, MD
Frederick Co.
United States 		Briarcliff Ln. / Briarcliff Way / Cliffside Terrace
(39.40696, -77.34925) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Frederick, MD
Frederick Co.
United States 		Butterfly Ln. / Himes Ave.
(39.40671, -77.44764) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		2020 https://www.cityoffrederickmd.gov/CivicAlerts.aspx?aid=6432
Frederick, MD
Frederick Co.
United States 		S East St. / (future road)
(39.40599, -77.40392) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2009 Year Completed estimated (2009-2011). East leg is stubbed for future connection.
Owings Mills, MD
Baltimore Co.
United States 		Grand Central Ave. / (parking)
(39.40581, -76.78033) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Year Completed estimated (2011-2014).
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.
Perry Hall, MD
Baltimore Co.
United States 		Scott Moore Way / Honeygo Center Dr.
(39.40491, -76.44142) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Pedestrian access to central island.
Perry Hall, MD
Baltimore Co.
United States 		Georgia Belle Dr. / Fragrence Way / Harcrest Way
(39.40467, -76.42700) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
4 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Martinsville, IN
Morgan Co.
United States 		SR 39 (Morton Ave.) / I-69 SB Ramps / Rogers Rd.
(39.40439, -86.44597) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2021 I-69 freeway opened 12/23/2021 - see https://content.govdelivery.com/accounts/INDOT/bulletins/30250b9 ** Roundabout opened with temporary configuration while new southbound ramp construction is completed
Townsend, DE
New Castle Co.
United States 		Karins Circle
(39.40433, -75.69677) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Perry Hall, MD
Baltimore Co.
United States 		E Joppa Rd. / Scott Moore Way / Cowenton Ave.
(39.40290, -76.44124) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2008 Right-turn bypass lane on west leg.
Reno, NV
Washoe Co.
United States 		SR 341 (Geiger Grade Rd.) / Veterans Pkwy. / (parking)
(39.40271, -119.74165) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
62.4840 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2011 Double left (left, left-through-right) on south leg; double right (left-through-right, right) on west leg.
Liberty Township, OH
Butler Co.
United States 		Millikin Rd. / Pinckney Trl.
(39.40263, -84.43077) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2021
Martinsville, IN
Morgan Co.
United States 		SR 39 / I-69 NB Ramps / Southview Dr.
(39.40262, -86.44528) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2021 Year Completed estimated (2020-2021). https://i69finishline.com/construction-schedule/.
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.
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
Liberty Township, OH
Butler Co.
United States 		Millikin Rd. / Maud Hughes Rd.
(39.40153, -84.40943) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6837 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Reno, NV
Washoe Co.
United States 		Herz Blvd. / Summit Sierra Blvd.
(39.40118, -119.75215) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Concentric circulatory roadway striping. Year Completed estimated (2004-2006).
Carbondale, CO
Garfield Co.
United States 		CO-133 / Main St.
(39.40113, -107.21968) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
42.4526 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 ICD estimated from Google Maps linework.
Liberty Township, OH
Butler Co.
United States 		Yankee Rd. / Millikin Rd.
(39.40022, -84.38541) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.1471 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Silver Springs, NV
Lyon Co.
United States 		US 50 / USA Pkwy. / Opal Ave.
(39.40014, -119.26883) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
64.0080 		Other (At-Grade)
Multilane (3+ Lane) 		2017 Consecutive double-left turns.
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
Linganore, MD
Frederick Co.
United States 		Lake Linganore Blvd. / Eaglehead Dr.
(39.39732, -77.31047) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2022).
New Market, MD
Frederick Co.
United States 		Eaglehead Dr. / Tomahawk St. / Fallfish Ct.
(39.39677, -77.30826) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 Year Completed estimated (2017-2018).
El Jebel, CO
Eagle Co.
United States 		El Jebel Rd. / Shadow Rock Rd.
(39.39554, -107.08999) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
128.2910 		Other (At-Grade)
Single-Lane 		2017 https://www.aspentimes.com/news/el-jebel-road-roundabout-opens-saturday/ ICD estimated from Google Maps linework.
Frederick, MD
Frederick Co.
United States 		Mercantile Dr. E / Rodes Cir.
(39.39507, -77.44311) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Brigantine, NJ
Atlantic Co.
United States 		Brigantine Blvd. / Bayshore Ave. / 34th St. S / (unknown) / (parking lot)
(39.39482, -74.38953) 		Other
Existing 		Other
None 		7 Approaches
0 Driveways
28.6120 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		All entries except Brigantine Blvd controled by stop signs. ICD estimated from Google Maps linework.
Frederick, MD
Frederick Co.
United States 		Jefferson Station Blvd. / Jefferson Commons Way
(39.39479, -77.44916) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2015 Year Completed estimated (2013-2015).
Liberty Township, OH
Butler Co.
United States 		The Trails Blvd. / Kensington Trl. / Windsor Trl. / Cambridge Trl.
(39.39451, -84.34693) 		Other
Existing 		All-Way Stop
None 		4 Approaches
0 Driveways
50.7634 		Other (At-Grade)
Single-Lane 		2002 Stop control; no splitter islands. ICD estimated from Google Maps linework.
Liberty Township, OH
Butler Co.
United States 		Carriage House Blvd. / Thoroughbred Ln. / Winner Circle Dr.
(39.39434, -84.45087) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0730 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
New Market, MD
Frederick Co.
United States 		Empire Blvd. / Edwardian Ln. / Jacobian Pl.
(39.39428, -77.29567) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway.
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)
New Market, MD
Frederick Co.
United States 		Eaglehead Dr. / Pecking Stone St.
(39.39397, -77.30943) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2016 Year Completed estimated (2015-2017).
Liberty Township, OH
Butler Co.
United States 		Berkshire Pl. / Amberly Ct. / Wiltshire Ct.
(39.39282, -84.34687) 		Other
Existing 		All-Way Stop
None 		4 Approaches
0 Driveways
27.6898 		Other (At-Grade)
Single-Lane 		2002 Stop control and no splitter islands. ICD estimated from Google Maps linework.
Owings Mills, MD
Baltimore Co.
United States 		(unknown)
(39.39269, -76.78657) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Ballenger Creek, MD
Frederick Co.
United States 		Jefferson Technology Pkwy. / (unknown)
(39.39256, -77.45666) 		Unknown
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Ballenger Creek, MD
Frederick Co.
United States 		Jefferson Technology Pkwy. / Jefferson Station Blvd.
(39.39223, -77.45291) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Year Completed estimated (2013-2015).