Roundabouts Database

30321 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
Davis, CA
Yolo Co.
United States 		Moore Blvd. / Wright Blvd.
(38.56490, -121.71860) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.2801 		Other (At-Grade)
Single-Lane 		1999 Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Ocean View, DE
Sussex Co.
United States 		Bay Forest Dr. / Starling Rd. / Shearwater Dr.
(38.56493, -75.11833) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Jefferson City, MO
Cole Co.
United States 		Central Stadium Blvd. / Jefferson St.
(38.56496, -92.18680) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
45.7585 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2017 ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		Butterfield Way / (parking)
(38.56675, -121.34436) 		Other
Existing 		Other
None 		3 Approaches
0 Driveways
59.4360 		Other (At-Grade)
Single-Lane 		West leg stop controlled.
Wildwood, MO
St. Louis Co.
United States 		Old Fairway Dr. / Nantucket Island Dr.
(38.56696, -90.61728) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
16.8088 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Wildwood, MO
St. Louis Co.
United States 		Old Fairway Dr. / Roaring Fork Dr. / (school access)
(38.56734, -90.61948) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.1469 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Moore Blvd. / Rockwell Dr.
(38.56830, -121.72630) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.2127 		Other (At-Grade)
Single-Lane 		1999 Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Jefferson City, MO
Cole Co.
United States 		Old Lohman Rd. / Westview Dr. / Big Horn Dr.
(38.56917, -92.28955) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2011 Elliptical shaped. ICD = 140 ft x 120 ft.
Villafranca de los Barros, Estremadura
Badajoz
Spain 		EX-334 / BA-002
(38.56983, -6.32994) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified) 		Unstriped circulatory roadway.
Ocean View, DE
Sussex Co.
United States 		Pettinaro Dr. / Fairway Blvd. / Anderson Dr.
(38.57018, -75.10036) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Villafranca de los Barros, Estremadura
Badajoz
Spain 		N-630 / BA-002 / (unknown)
(38.57127, -6.35166) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified) 		Concentric circulatory roadway striping.
Wildwood, MO
St. Louis Co.
United States 		Old Fairway Dr. / Waterside Dr.
(38.57311, -90.62062) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.8135 		Other (At-Grade)
Single-Lane 		2005 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.
Sacramento, CA
Sacramento Co.
United States 		26th St. / I St.
(38.57565, -121.47140) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
81.2327 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Jefferson City, MO
Cole Co.
United States 		Stoneridge Pkwy. / Hard Rock Dr.
(38.57574, -92.22419) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2015 Year Completed estimated (2015-2017).
Jefferson City, MO
Cole Co.
United States 		W Stadium Blvd. / Hard Rock Dr. / (parking lot)
(38.57584, -92.21602) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 Add-lane right-turn bypass lane on north leg; yield-controlled right-turn bypass lane on west leg.
Sacramento, CA
Sacramento Co.
United States 		24th St. / I St.
(38.57636, -121.47410) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
55.0883 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Dagsboro, DE
Sussex Co.
United States 		Seagrass Plantation Ln. / Bluffton Ct.
(38.57678, -75.14570) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Jefferson City, MO
Cole Co.
United States 		W Stadium Blvd. / Hyde Park Rd. / (future street)
(38.57733, -92.21556) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2010 Fourth leg stubbed.
Sacramento, CA
Sacramento Co.
United States 		24th St. / H St.
(38.57746, -121.47360) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
70.0264 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Wildwood, MO
St. Louis Co.
United States 		Manchester Rd. / Village Hills Pkwy. / Taylor Rd.
(38.57818, -90.62749) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.4797 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (2002-2003). ICD estimated from Google Maps linework.
Dushanbe, Districts of Republican Subordination

Tajikistan 		Shohtemur St. / Druzhba Narodov St.
(38.57906, 68.80067) 		Unknown
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Wildwood, MO
St. Louis Co.
United States 		Old Fairway Dr. / Elderberry Ln.
(38.57910, -90.61965) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.0099 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		26th St. / E St.
(38.58003, -121.46950) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
15.8721 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Saint-Charles, MD
Charles Co.
United States 		St Owen Ct. / Oyster Reef Pl. / Ottawa Park Pl.
(38.58026, -76.91047) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2008
Wildwood, MO
St. Louis Co.
United States 		MO 109 / Main St.
(38.58163, -90.64350) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2019 Year Completed estimated (2019-2020).
Dushanbe, Districts of Republican Subordination

Tajikistan 		E60 / F Mukhammadiev St.
(38.58165, 68.72395) 		Other
Existing 		Other
Unknown 		3 Approaches
0 Driveways
 Other (At-Grade)
Multilane (3+ Lane) 		Circulating traffic yields to entering traffic.
Wildwood, MO
St. Louis Co.
United States 		MO 109 / MO 100 EB Ramps
(38.58348, -90.64292) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2019 Year Completed estimated (2019-2020).
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 		Queensberry Dr. / Larkspur Ct.
(38.58450, -76.55968) 		Other
Existing 		Unknown
Unknown 		3 Approaches
4 Driveways
0.0000 		Other (At-Grade)
Single-Lane
O'Fallon, IL
St. Clair Co.
United States 		Cambridge Blvd. / St Francis Way / St Elizabeth's Blvd.
(38.58493, -89.93023) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.6755 		Other (At-Grade)
Single-Lane 		2016 Roundabout built by hospital. ICD estimated from Google Maps linework.
Wildwood, MO
St. Louis Co.
United States 		MO 109 / MO 100 WB Ramps / Windsor Meadow Blvd.
(38.58501, -90.64241) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.2771 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2014 ICD estimated from Google Maps linework.
Millsboro, DE
Sussex Co.
United States 		Plantation Lakes Blvd. / Belmont Blvd.
(38.58603, -75.31598) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Salem, IN
Washington Co.
United States 		SR 60-SR 135 (Salem Bypass) / SR 135 (Salem Bypass) / SR 60 / S Jackson St.
(38.58859, -86.06888) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021
Bealeton, VA
Fauquier Co.
United States 		Lafayette Ave. / Bowers Run Dr.
(38.58888, -77.77173) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.5409 		Other (At-Grade)
Single-Lane 		2015 Roundabout as part of new Mintbrook Development near Bealeton, VA ICD estimated from Google Maps linework.
Wildwood, MO
St. Louis Co.
United States 		MO 109 / Pond Grover Loop Rd.
(38.59084, -90.64046) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.6729 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Year Completed estimated (2014-2015). ICD estimated from Google Maps linework.
O'Fallon, IL
St. Clair Co.
United States 		W State St. / Obernuefermann Rd. / Schwaegel Rd.
(38.59229, -89.92877) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.2043 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Millsboro, DE
Sussex Co.
United States 		Sheep Pen Rd. / Olney Way / Wright Way
(38.59275, -75.32798) 		Unknown
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		2020 Year Completed estimated (2018-2022).
O'Fallon, IL
St. Clair Co.
United States 		Old Vincennes Trl. / Seven Hills Rd. / E State St.
(38.59342, -89.89246) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.4056 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Woodbridge, VA
Prince William Co.
United States 		Anchor Bend Circle
(38.59517, -77.28977) 		Other
Existing 		Unknown
Unknown 		2 Approaches
12 Driveways
0.0000 		Other (At-Grade)
Unknown
Des Peres, MO
St. Louis Co.
United States 		Des Peres Rd. / Old des Peres Rd. / (parking)
(38.59822, -90.45349) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2024 https://www.youtube.com/watch?v=njKGqjmTBVA
Southern Pacific/Richards, CA
Sacramento Co.
United States 		(unknown) / (unknown)
(38.59937, -121.49238) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
33.6024 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Southern Pacific/Richards, CA
Sacramento Co.
United States 		N 7th St. / Vine St.
(38.59962, -121.48959) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
41.0695 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Arrentela, Setúbal
Seixal
Portugal 		Avenida Aureliano Mira Fernandes / Rua Rodrigo Sarmento de Beires
(38.60038, -9.06367) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Saint-Charles, MD
Charles Co.
United States 		Smugglers Notch Ct. / Jacksonhole Pl.
(38.60188, -76.94805) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Dushanbe, Districts of Republican Subordination

Tajikistan 		(unknown)
(38.60224, 68.77527) 		Unknown
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
 Other (At-Grade)
Unknown
O'Fallon, IL
St. Clair Co.
United States 		Porter Rd. / Simmons Rd.
(38.60258, -89.93231) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.7342 		Other (At-Grade)
Single-Lane 		2011 Year Completed estimated (2010-2011). ICD estimated from Google Maps linework.
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 		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.
Saint Louis, MO
St. Louis City
United States 		Center Cross Dr. / Main Dr.
(38.60658, -90.25836) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Saint Charles, MD
Charles Co.
United States 		Middletown Rd. / Billingsley Rd.
(38.60721, -76.97561) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2019 https://www.charlescountymd.gov/our-county/infrastructure/traffic-signal-projects/middletown-road-billingsley-road-roundabout
Potomac Heights, MD
Charles Co.
United States 		Cedar Ln. / Glymont Rd. / Greenwood Pl.
(38.60764, -77.14063) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Millsboro, DE
Sussex Co.
United States 		Sterling Blvd. / Peninsula Esplanade
(38.60821, -75.16426) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Healdsburg, CA
Sonoma Co.
United States 		Healdsburg Ave. / Mill St. / Vine St.
(38.60833, -122.87009) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
36.3981 		Other (At-Grade)
Single-Lane 		2018 At-grade railroad crossing through central island. ICD estimated from Google Maps linework.
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.
Fairview Heights, IL
St. Clair Co.
United States 		Dunhill Dr. / Northshore Dr.
(38.61012, -89.97116) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.7309 		Other (At-Grade)
Single-Lane 		2006 No splitter islands. ICD estimated from Google Maps linework.
Saint Charles, MD
Charles Co.
United States 		Devongate St. / Malvern St. / Promenade Pl.
(38.61057, -76.93790) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2009 Crosswalks adjacent to circulatory roadway. Year Completed estimated (2008-2009).
Natomas, CA
Sacramento Co.
United States 		Orchard Ln. / W. River Dr.
(38.61135, -121.53004) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2005
O'Fallon, IL
St. Clair Co.
United States 		Milburn Estates Dr. / Portsmith Place Dr.
(38.61138, -89.94514) 		Other
Existing 		Uncontrolled
None 		3 Approaches
0 Driveways
55.9947 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
O'Fallon, IL
St. Clair Co.
United States 		Simmons Rd. / Milburn School Rd. / Fairwood Hills Rd.
(38.61146, -89.92906) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.7957 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Millsboro, DE
Sussex Co.
United States 		Peninsula Esplanade / N Nicklaus Ave. / S Nicklaus Ave.
(38.61209, -75.17355) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Folsom, CA
Sacramento Co.
United States 		Prairie City Rd. / Scott Rd.
(38.61225, -121.14817) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 https://www.facebook.com/CityofFolsom/videos/6294236023941862/
O'Fallon, IL
St. Clair Co.
United States 		Milburn School Rd. / Merriam Pkwy. / Milburn Estates Dr.
(38.61429, -89.94506) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.1966 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
O'Fallon, IL
St. Clair Co.
United States 		Milburn School Rd. / Old Collinsville Rd.
(38.61444, -89.96636) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.7290 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Pinhal Novo, Setúbal
Palmela
Portugal 		N252 (Rua José Afonso - Avenida dos Ferroviários) / Rua José Afonso
(38.61814, -8.91773) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
St. Louis, MO
St. Louis City Co.
United States 		Gratiot St. / S 13th St.
(38.62104, -90.20242) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
33.5923 		Other (At-Grade)
Single-Lane 		No splitter islands. ICD estimated from Google Maps linework.
Paola, KS
Miami Co.
United States 		K-68 / Old Kansas City Rd. / Hedge Ln.
(38.62133, -94.85551) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
44.7895 		Other (At-Grade)
Single-Lane 		2001 First roundabout on rural, high-speed facility in Kansas. Functional Class: Arterial ICD estimated from Google Maps linework.
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.
Long Neck, DE
Sussex Co.
United States 		Shoreview Blvd. / (parking)
(38.62526, -75.18077) 		Other
Existing 		Unknown
Unknown 		2 Approaches
2 Driveways
0.0000 		Other (At-Grade)
Single-Lane
East St Louis, IL
St. Clair Co.
United States 		N 18th St. / Baugh Ave. / I-64 WB Ramps
(38.62540, -90.13455) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
28.9249 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		San Juan Rd. / Azevedo Dr.
(38.62740, -121.50840) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.1250 		Other (At-Grade)
Single-Lane 		2004 Constructed using asphalt curbs without reconstructing original curb/gutter/sidewalk. Tactile guide strips in crosswalks. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Saint Charles, MD
Charles Co.
United States 		Ethridge Dr. / Nobility Ct.
(38.62769, -76.96461) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter island on north and east legs.
St. Louis, MO
St. Louis City Co.
United States 		Tower Grove Ave. / I-64 EB Off-Ramp
(38.63045, -90.25538) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5879 		Freeway Ramps (Grade-Separated)
Single-Lane 		2014 ICD estimated from Google Maps linework.
East St Louis, IL
St. Clair Co.
United States 		N 9th St. / St Clair Ave.
(38.63094, -90.14386) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
37.3196 		Other (At-Grade)
Single-Lane 		2013 Right-turn bypass lane on east leg. ICD estimated from Google Maps linework.
Woodbridge, VA
Prince William Co.
United States 		Potomac Branch Dr. / Oberlin Dr. / Barkham Dr. / Weeburn Way / Cadbury Way
(38.63114, -77.28082) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Pinhal Novo, Setúbal
Palmela
Portugal 		N252 (Rua Luís de Camões - Avenida dos Ferroviários) / Rua Guerra Junqueiro
(38.63135, -8.91769) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Pinhal Novo, Setúbal
Palmela
Portugal 		Praça da Indepedência / Rua El Rei Dom Sancho I / Rua António Sérgio
(38.63156, -8.91099) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
East St Louis, IL
St. Clair Co.
United States 		N 9th St. / Baugh Ave. / I-70 EB Onramp
(38.63197, -90.14187) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5871 		Freeway Ramps (Grade-Separated)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Forest Park, MO
St. Louis City Co.
United States 		Hampton Ave. / Concourse Dr. / Wells Dr.
(38.63316, -90.28546) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.7207 		Other (At-Grade)
Single-Lane 		2009 Right-turn bypass lane merge in crosswalk area. ICD estimated from Google Maps linework.
St Louis, MO
St. Louis City Co.
United States 		McKinley Dr. / Wells Dr.
(38.63354, -90.28072) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.4467 		Other (At-Grade)
Single-Lane 		2008 Converted from traffic circle in 2007-2008. Previous circle had on-street parking in circulatory roadway. ICD estimated from Google Maps linework.
Forest Park, MO
St. Louis City Co.
United States 		Government Dr. / Wells Dr.
(38.63437, -90.30113) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
44.7814 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Forest Park, MO
St. Louis City Co.
United States 		Concourse Dr. / Washington Dr.
(38.63495, -90.28480) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.3234 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
St Louis, MO
St. Louis Co.
United States 		S Forty Rd. / I-64-US 40 EB Ramps
(38.63496, -90.41724) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
48.5127 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Frontage road connection replaced direct connection to S Spoede Rd. ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		Fong Ranch Rd. / Bridgegate Dr.
(38.63510, -121.49340) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2020).
Town and Country, MO
St. Louis Co.
United States 		MO 141 SB Ramps / Woods Mill Rd.
(38.63523, -90.51449) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
38.2503 		Other (At-Grade)
Single-Lane 		2002 Previously controlled by one-way stop ICD estimated from Google Maps linework.
Waldorf, MD
Charles Co.
United States 		Davis Rd. / (School entrance)
(38.63609, -76.97873) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
1 Driveways
33.5852 		Other (At-Grade)
Single-Lane 		2005 Functional Class: Local ICD estimated from Google Maps linework.
Folsom, CA
Sacramento Co.
United States 		Grand Prairie Rd. / Rustic Ridge Dr.
(38.63617, -121.09165) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019).
St Louis, MO
St. Louis Co.
United States 		N Forty Dr. / I-64-US 40 WB Ramps
(38.63631, -90.41822) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
50.3777 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Frontage road connection replaced direct connection to S Spoede Rd. ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		Promenade Cir. / (unknown)
(38.63732, -121.49950) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.5175 		Other (At-Grade)
Single-Lane 		2006 Inside commercial/office park. ICD estimated from Google Maps linework.
Caseyville, IL
St. Clair Co.
United States 		George E Chance Pkwy. / Laurel Flats Dr. / (future roads)
(38.63746, -90.00941) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2007-2008).
Lyndon, KS
Osage Co.
United States 		US 75 / K-31 / K-268
(38.63773, -95.68464) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.1083 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Costa de Caparica, Setúbal
Almada
Portugal 		N10-1 (Avenida de Dom Sebastião) / Rua Engenheiro Henrique Mendia
(38.63925, -9.23049) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Corroios, Setúbal
Seixal
Portugal 		N10 (Avenida 25 de Abril) / CM1013 / Av Arsenal do Alfeite
(38.63997, -9.15016) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified)
Folsom, CA
Sacramento Co.
United States 		Grand Prairie Rd. / Rustic Ridge Dr. / Alder Creek Pkwy
(38.64059, -121.09212) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019).
Woodland, CA
Yolo Co.
United States 		Road 25A / Miekle Ave.
(38.64078, -121.73624) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2021 Year Completed estimated (2020-2021).
Woodland, CA
Yolo Co.
United States 		Road 25A / Parkland Ave.
(38.64099, -121.74450) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2020
Saint Charles, MD
Charles Co.
United States 		Radford St. / Montpelier Dr.
(38.64135, -76.97106) 		Other
Existing 		Unknown
Unknown 		3 Approaches
4 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Pedestrian access to central island.
Caseyville, IL
St. Clair Co.
United States 		George E Chance Pkwy. / Villa Valley / Donner Ridge
(38.64193, -90.00523) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2007-2008).
Corroios, Setúbal
Seixal
Portugal 		Rua do Rouxinol / Rua da Igreja / Avenida Baía Natural do Seixal Ramps
(38.64207, -9.14887) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
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