29410 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
Almendralejo, Estremadura
Badajoz
Spain
N-630 / Calle Ortega y Muñoz / Calle las Encinas
(38.67584, -6.39247)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
1 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
North Highlands, CA
Sacramento Co.
United States
Freedom Park Dr. / 34th St. / Dudley Blvd.
(38.67588, -121.38752)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2012
North Highlands, CA
Sacramento Co.
United States
Freedom Park Dr. / 32nd St.
(38.67592, -121.39216)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2012
Piedade, Setúbal
Almada
Portugal
Avenida Dom Nuno Álvares Pereira / Avenida Bento Gonçalves / Rua Direita / Rua Caetano Maria Batalha
(38.67617, -9.16488)
Roundabout
Existing
All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling circulatory roadway only)
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Pedestrian signals and signals for light rail crossing through central island.
Sacramento, CA
Sacramento Co.
United States
Crossfield Dr. / Meister Way / Airport Blvd. NB Ramps
(38.67890, -121.58937)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
51.8160
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max)
2023 Serves Sacramento International Airport. https://sacramento.aero/scas/about/news-and-events/upcoming-smf-construction-plan-ahead-for-improved-travel-experience
Sacramento, CA
Sacramento Co.
United States
Crossfield Dr. / Lindbergh Dr. / Airport Blvd. SB Ramps
(38.67892, -121.59240)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
48.7680
Freeway Ramps (Grade-Separated)
Single-Lane
2023 Serves Sacramento International Airport. https://sacramento.aero/scas/about/news-and-events/upcoming-smf-construction-plan-ahead-for-improved-travel-experience
Madison, CA
Yolo Co.
United States
SR 16 / CR 89
(38.68204, -121.96678)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Single-Lane
2019
Sacramento, CA
Sacramento Co.
United States
Northborough Dr. / Heritage Park Ln. / Rose Arbor Dr.
(38.68221, -121.51550)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
23.3081
Other (At-Grade)
Single-Lane
2002 ICD estimated from Google Maps linework.
Almendralejo, Estremadura
Badajoz
Spain
N-630 / Calle de Santa Marta
(38.68229, -6.39858)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Woodbridge, VA
Prince William Co.
United States
Greatbridge Rd. / Mays Quarter Rd.
(38.68304, -77.34802)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
44.7509
Other (At-Grade)
Single-Lane
1998 Year Completed estimated (1994-2002). ICD estimated from Google Maps linework.
Citrus Heights, CA
Sacramento Co.
United States
Stock Ranch Rd. / Woodside Dr. / Fountain Square Dr.
(38.68438, -121.29649)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
38.1000
Other (At-Grade)
Single-Lane
2004 Bike lanes striped within circulatory roadway. Year Completed estimated (2003-2004).
Woodbridge, VA
Prince William Co.
United States
Mays Quarter Rd. / Dorset Dr. / Weejun Loop
(38.68551, -77.34407)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.3589
Other (At-Grade)
Single-Lane
2014 ICD estimated from Google Maps linework.
Warrenton, VA
Fauquier Co.
United States
US 17 Business / Lord Fairfax Dr. / US 15-US 17-US 29 (Eastern Bypass) NB Ramps
(38.68557, -77.78602)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Freeway Ramps (Grade-Separated)
Single-Lane
2020 http://www.virginiadot.org/projects/culpeper/warrentoninterchange.asp
Chesterfield, MO
St. Louis Co.
United States
River Valley Dr. / River Bend Dr.
(38.68602, -90.50327)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
33.5280
Other (At-Grade)
Single-Lane
2003 Year Completed estimated (2002-2003).
Woodland, CA
Yolo Co.
United States
Palm Ave. / Keystone Ave.
(38.68635, -121.77050)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
41.0198
Other (At-Grade)
Single-Lane
Circular intersection in older neighborhood. ICD estimated from Google Maps linework.
Jardia, Setúbal
Montijo
Portugal
N5 / N11-2 / Rua do Operário
(38.68648, -8.94418)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Warrenton, VA
Fauquier Co.
United States
US 17 Business (James Madison Hwy.) / US 15-US 17-US 29 (Eastern Bypass) SB Ramps
(38.68752, -77.78767)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Freeway Ramps (Grade-Separated)
Single-Lane
2020 http://www.virginiadot.org/projects/culpeper/warrentoninterchange.asp
St Louis, MO
St. Louis Co.
United States
Willow Village Pkwy. / Beckham Ridge Ct. / Willowbrooke Manors Ct. / Kennabrooke Ct.
(38.68853, -90.41193)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
39.6240
Other (At-Grade)
Single-Lane
2014 One-stage unmarked pedestrian crossings.
Almendralejo, Estremadura
Badajoz
Spain
Avenida de A Rúa / Camino Corona / Poligono Pabellon
(38.68884, -6.41395)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
Other (At-Grade)
Single-Lane
Almendralejo, Estremadura
Badajoz
Spain
EX-300
(38.68926, -6.42754)
Roundabout
Existing
All-Way Yield
Unknown
2 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
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.
Georgetown, DE
Sussex Co.
United States
The Circle (Georgetown Circle)
(38.69005, -75.38587)
Other
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
66.1876
Other (At-Grade)
Single-Lane
1791 New town built as county seat centered on circle instead of more traditional square. Pedestrian access to center island. Parking at buildings on the circle. No raised splitter islands. ICD estimated from Google Maps linework.
Almendralejo, Estremadura
Badajoz
Spain
EX-300 / EX-359
(38.69145, -6.43905)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
1 Driveways
Other (At-Grade)
Multilane (3+ Lane)
Concentric circulatory roadway striping.
Almendralejo, Estremadura
Badajoz
Spain
Carretera San Serván / (unknown)
(38.69153, -6.40953)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Almendralejo, Estremadura
Badajoz
Spain
N-630 / Calle Gonzalo Hernandez / Calle Almendro
(38.69168, -6.40553)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
2 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Woodbridge, VA
Prince William Co.
United States
Greatbridge Rd. / Chanceford Dr.
(38.69295, -77.34576)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
28.8976
Other (At-Grade)
Single-Lane
2003 ICD estimated from Google Maps linework.
Afonsoeiro, Setúbal
Montijo
Portugal
Estrada Nacional 5 / Circular Externa / Rua Vasco da Gama
(38.69332, -8.95082)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Sacramento, CA
Sacramento Co.
United States
Airport Blvd. / Lindbergh Dr. / Aviation Dr.
(38.69345, -121.59025)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
39.6240
Other (At-Grade)
Single-Lane
2011 South leg is exit only.
Almendralejo, Estremadura
Badajoz
Spain
Calle Jarabugo / Calle Sup 37ii
(38.69413, -6.43824)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
Other (At-Grade)
Single-Lane
Chesapeake Beach, MD
Calvert Co.
United States
Harrison Blvd. / Sansbury Dr.
(38.69561, -76.55797)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
24.3840
Other (At-Grade)
Single-Lane
1997 Year Completed estimated (1993-2004).
Almendralejo, Estremadura
Badajoz
Spain
Calle Sup 37ii
(38.69575, -6.43608)
Roundabout
Existing
All-Way Yield
Unknown
2 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Concentric circulatory roadway striping.
Accokeek, MD
Prince George's Co.
United States
St Mary's View Rd. / Lusby Ridge Rd.
(38.69721, -76.95157)
Other
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
27.4320
Other (At-Grade)
Single-Lane
No splitter island on south leg.
Lewes, DE
Sussex Co.
United States
Beaver Dam Rd. / Quiet Harbor Way
(38.69743, -75.21559)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
2021 https://www.capegazette.com/article/roundabouts-abound/228013
Afonsoeiro, Setúbal
Montijo
Portugal
N4 (Circular Externa) / (Fórum Montijo shopping centre entrance)
(38.69761, -8.94484)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
São Domingos de Rana, Lisbon
Cascais
Portugal
Avenida dos Bombeiros Voluntários / Rua do Dia Mundial da Criança
(38.69795, -9.35301)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other (At-Grade)
Single-Lane
Warrenton, VA
Fauquier Co.
United States
E Shirley Ave. / Falmouth St.
(38.69843, -77.78795)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
13.0496
Other (At-Grade)
Single-lane w/ Traversable Central Island
2018 Constructed Fall 2018, mini-roundabout with one bypass lane ICD estimated from Google Maps linework.
Sedalia, MO
Pettis Co.
United States
Rte Y (W 16th St.) / Winchester Dr.
(38.69957, -93.27763)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
2011 Year Completed estimated (2010-2012).
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.
Georgetown, DE
Sussex Co.
United States
Sand Hill Rd. / Clark Dr.
(38.70163, -75.36785)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
39.6240
Other (At-Grade)
Single-Lane
2022 West leg is entrance to Cheer Community Center. East leg stubbed. https://www.wmdt.com/2022/08/georgetown-east-gateway-project-completed-ensuring-safer-roadways-for-locals/
Afonsoeiro, Setúbal
Montijo
Portugal
N4 (Circular Externa) / Avenida das Portas da Cidade
(38.70209, -8.94456)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Cascais, Lisbon
Cascais
Portugal
N9 (Avenida de Sintra) / Rua Henrique de Seixas
(38.70356, -9.41787)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Normandy, MO
St. Louis Co.
United States
Natural Bridge Rd. (SR 115) / Florissant Rd.
(38.70418, -90.29664)
Roundabout
Existing
All-Way Yield
None
3 Approaches
1 Driveways
39.6240
Other (At-Grade)
Single-Lane
2015
Weldon Spring, MO
St. Charles Co.
United States
Technology Dr. / Meadows Pkwy. / Wolfrum Rd. / I-64 WB Exit Ramp
(38.70526, -90.67410)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
60.9600
Freeway Ramps (Grade-Separated)
Single-Lane
Oval shaped. ICD = 200 ft x 180 ft. Built initially as 2x2 roundabout in 2005-2006. Concentric circulatory roadway striping. Converted to single lane using by striping out inner circulatory roadway lane and left entry lane on southwest leg 2020-2021.
Jardia, Setúbal
Montijo
Portugal
N4 (Avenida Dom Manuel) / Rua das Forças Armadas / Rua Infante Dom Francisco
(38.70686, -8.92771)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Afonsoeiro, Setúbal
Montijo
Portugal
N4 (Circular Externa) / Avenida Garcia da Orta
(38.70694, -8.94501)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Warrensburg, MO
Johnson Co.
United States
SR 13 / Old SR 13 / SE 101st Rd.
(38.70853, -93.73029)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
41.0071
Other (At-Grade)
Single-Lane
2011 Functional Class: Arterial ICD estimated from Google Maps linework.
Alcochete, Setúbal
Alcochete
Portugal
N4 / N118
(38.70905, -8.89566)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Rehoboth Beach, DE
Sussex Co.
United States
Coatue Blvd. / Wauwinet Ct. / Sconset Ct.
(38.70921, -75.13040)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Rehoboth Beach, DE
Sussex Co.
United States
Wanoma Cir. / Coatue Blvd.
(38.70922, -75.12642)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Linda-a-Velha, Lisbon
Oeiras
Portugal
Avenida dos Bombeiros Voluntários de Algés / Alameda Engenheiro José Mattos e Silva / A36 NB Ramp
(38.70931, -9.22470)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
Oval shaped.
Caxias, Lisbon
Oeiras
Portugal
Rua Calvet de Magalhães / Avenida António Sena da Silva / Rua do Penedo
(38.71033, -9.28560)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Caxias, Lisbon
Oeiras
Portugal
Avenida das Seleções / Estrada Militar / A9 SB Ramps
(38.71045, -9.26562)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
Praia da Vitória, Terceira Island

Portugal
Estrada da Circunvalação (Rte 2A) / Caminho dos Poços
(38.71093, -27.06084)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
51.2571
Other (At-Grade)
Single-Lane
ICD estimated from Google Maps linework.
Mount Vernon, VA
Fairfax Co.
United States
Mount Vernon Memorial Hwy
(38.71132, -77.08612)
Other
Existing
Unknown
Unknown
2 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Parking along circulatory roadway.
Bridgeville, DE
Sussex Co.
United States
Heritage Shore Dr.
(38.71171, -75.59194)
Other
Existing
Unknown
Unknown
2 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Bridgeville, DE
Sussex Co.
United States
Heritage Shore Dr. / (future roads)
(38.71236, -75.59344)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Afonsoeiro, Setúbal
Montijo
Portugal
Circular Externa / Rua Antero de Quental
(38.71345, -8.94616)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Linda-a-Velha, Lisbon
Oeiras
Portugal
Avenida Maximiano Lemos / Alameda Fernão Lopes / Rua Quinta das Romeiras / Rua Afonso Praça / A36 SB Ramp
(38.71369, -9.22492)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
Lewes, DE
Sussex Co.
United States
Cardiff Circle
(38.71458, -75.17947)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
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.
Rehoboth Beach, DE
Sussex Co.
United States
Rehoboth Ave. / Grove St.
(38.71501, -75.09075)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
32.6163
Other (At-Grade)
Multilane (2 Lane, unspecified)
2003 Yield-controlled right-turn bypass lane on SB approach. Fishhook pavement markings. Heavy bicycle and pedestrian traffic. Extensive queuing with beach-related surges. Functional Class: Arterial 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.
Cascais, Lisbon
Cascais
Portugal
Avenida Condes de Barcelona / A5 Ramps / Rua do Campo Santo
(38.71537, -9.38870)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Freeway Ramps (Grade-Separated)
Multilane (3+ Lane)
Weldon Spring, MO
St. Charles Co.
United States
Weldon Spring Rd. / Technology Dr. / Siedentop Rd.
(38.71551, -90.68906)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
39.6240
Other (At-Grade)
Single-Lane
2004 Painted splitter island on east leg. Year Completed estimated (2003-2004).
Lisbon, Lisbon
Lisboa
Portugal
Rua de São Jorge / Avenida de Álvares Cabral / Rua João Anastácio Rosa
(38.71579, -9.15871)
Roundabout
Existing
All-Way Yield
None
2 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
3rd street is one way out of roundabout
Afonsoeiro, Setúbal
Montijo
Portugal
Circular Externa / Rua das Naus
(38.71601, -8.95715)
Roundabout
Existing
All-Way Yield
None
2 Approaches
2 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Linda-a-Velha, Lisbon
Oeiras
Portugal
Alameda António Sérgio / Avenida Carolina Michaelis
(38.71625, -9.23698)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Bridgeville, DE
Sussex Co.
United States
Heritage Shores Cir. / White Pelican Ct. / Will's Island Dr.
(38.71647, -75.60235)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
O'Fallon, MO
St. Charles Co.
United States
Technology Dr. / Progress Point Pkwy. / (parking)
(38.71685, -90.69499)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
39.6240
Other (At-Grade)
Single-Lane
2003 Year Completed estimated (2002-2003).
Linda-a-Velha, Lisbon
Oeiras
Portugal
Avenida 25 de Abril de 1974 / Alameda António Sérgio / Rua Alexandre Herculano
(38.71706, -9.23763)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Briatico, Calabria
Vibo Valentia
Italy
SP6 / SP80
(38.71758, 16.04923)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
Other (At-Grade)
Single-Lane
O'Fallon, MO
St. Charles Co.
United States
Technology Dr. / Waterbury Falls Dr.
(38.71843, -90.69627)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
39.6240
Other (At-Grade)
Single-Lane
2003 Year Completed estimated (2002-2003). Southwest leg added 2008-2009.
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
São Domingos de Rana, Lisbon
Cascais
Portugal
Rua dos Canteiros / Avenida Salgueiro Maia / Avenida Amália Rodrigues
(38.71855, -9.34707)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Single-Lane
Praia da Vitória, Terceira Island

Portugal
Estrada da Circunvalação (Rte 1A) / Via Vitorino Nemesio
(38.71992, -27.06340)
Roundabout
Existing
All-Way Yield
None
4 Approaches
1 Driveways
44.7279
Other (At-Grade)
Single-Lane
ICD estimated from Google Maps linework.
Samouco, Setúbal
Alcochete
Portugal
M501 / Rua do Oceano / Rua da Quinta da Praia
(38.72128, -9.00093)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Single-Lane
Rehoboth Beach, DE
Sussex Co.
United States
Warrington Rd. / Healthy Way
(38.72141, -75.14094)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
39.6240
Other (At-Grade)
Single-Lane
2021 Year Completed estimated (2019-2021). https://deldot.gov/Programs/roundabouts/images/warrington.jpg.
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/
St. Louis, MO
St. Louis Co.
United States
Halls Ferry / MO 367
(38.72251, -90.24017)
Rotary
Existing
All-Way Yield
None
6 Approaches
0 Driveways
86.6571
Other (At-Grade)
Multilane (2 Lane, unspecified)
three of the six approaches are multilane and have dual lanes of traffic merging into both lanes of the roundabout; roundabout is unstriped. Description as follows: Halls Ferry Circle is 3 lanes wide, 350 foot diameter, 35 miles per hour and has 5 major roadways entering (from http://www.ballwin.mo.us/minutes_062402.html) ICD estimated from Google Maps linework.
Rehoboth Beach, DE
Sussex Co.
United States
Liverpool Ln. / Oxford Ct. / Limerick Dr. / Worcester Dr.
(38.72326, -75.09795)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.7200
Other (At-Grade)
Single-Lane
2006 Year Completed estimated (2005-2006).
Security-Widefield, CO
El Paso Co.
United States
Fountain Mesa Rd. / Caballero Ave. / Fortman Ave.
(38.72330, -104.69956)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
33.5280
Other (At-Grade)
Single-Lane
2022 Year Completed estimated (2021-2022). https://www.koaa.com/news/covering-colorado/new-roundabout-but-is-it-keeping-children-safe
Bridgeville, DE
Sussex Co.
United States
Heritage Shores Cir. / Champions Dr.
(38.72458, -75.60463)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
(unincorporated), MD
Prince Georges Co.
United States
Ft. Washington Rd. / Swan Creek Rd.
(38.72498, -77.00491)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
25.1576
Other (At-Grade)
Single-Lane
1997 Fourth leg added. Year Completed estimated (before 2001). ICD estimated from Google Maps linework.
Cirby Side, CA
Placer Co.
United States
Somer Ridge Dr. / (parking)
(38.72754, -121.28342)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Bristow, VA
Prince William Co.
United States
Iron Brigade Unit Ave. / Tenth Alabama Way
(38.72790, -77.54408)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
38.2008
Other (At-Grade)
Single-Lane
2006 Functional Class: Local ICD estimated from Google Maps linework.
Queijas, Lisbon
Oeiras
Portugal
N6-2 (Estrada da Amadora - Avenida de Portugal) / Rua da Mina Grande
(38.72830, -9.24809)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Single-Lane
Alcabideche, Lisbon
Cascais
Portugal
Rotunda José Roquete [Avenida de Alcabideche / Rua de Cascais]
(38.72888, -9.41113)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Alcabideche, Lisbon
Cascais
Portugal
Rotunda das Palmeiras [Terceira Circular / Rota do Património da Humanidade / Avenida de Alcabideche]
(38.72895, -9.41449)
Roundabout
Existing
All-Way Yield
None
3 Approaches
1 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Brentsville, VA
Prince William Co.
United States
Twin Leaf Dr. / Spring Iris Dr.
(38.72948, -77.55567)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2020 Year Completed estimated (2019-2020).
Lewes, DE
Sussex Co.
United States
Grove Estate Rd.
(38.72983, -75.15914)
Other
Existing
Unknown
Unknown
2 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Alcabideche, Lisbon
Cascais
Portugal
N9 / A16 (Rota do Património da Humanidade) NB Ramps
(38.73119, -9.41452)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
Jennings, MO
St. Louis Co.
United States
Wilson Bridge Dr. / Alexandria Place Dr.
(38.73354, -90.24449)
Other
Existing
Uncontrolled
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Cottleville, MO
St. Charles Co.
United States
Gutermuth Rd. / MO 364 EB Ramps
(38.73394, -90.66626)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Freeway Ramps (Grade-Separated)
Single-Lane
2020 https://www.stltoday.com/suburban-journals/stcharles/portion-of-gutermuth-to-close-for-route-364-interchange-construction/article_392e1870-c917-5df1-82ab-d83cceca50b8.html
Linton Hall, VA
Prince William Co.
United States
Braemar Pkwy. (VA 3080) / Iona Sound Dr. (VA 3089)
(38.73510, -77.56889)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
46.5816
Other (At-Grade)
Single-Lane
1999 Year Completed estimated (1994-2002). ICD estimated from Google Maps linework.
Cottleville, MO
St. Charles Co.
United States
Gutermuth Rd. / MO 364 WB Ramps
(38.73583, -90.66567)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Freeway Ramps (Grade-Separated)
Single-Lane
2020 https://www.stltoday.com/suburban-journals/stcharles/portion-of-gutermuth-to-close-for-route-364-interchange-construction/article_392e1870-c917-5df1-82ab-d83cceca50b8.html
Highland, IL
Madison Co.
United States
Iberg Rd. / Veterans Honor Pkwy. / Broadway / Saint Rose Rd.
(38.73643, -89.65281)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
2019 https://www.bnd.com/news/local/community/highland-news-leader/article137270003.html
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.
Camino, CA
El Dorado Co.
United States
Pondorado Rd. / (US 50 underpass) / (future road)
(38.73683, -120.70547)
Roundabout
Existing
All-Way Yield
None
2 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
2022 North leg passes under US 50. Future east leg not built. https://dot.ca.gov/caltrans-near-me/district-3/d3-projects/d3-us-50-camino-safety-4e620
Cottleville, MO
St. Charles Co.
United States
Gutermuth Rd. / (unknown)
(38.73697, -90.66532)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
2020
Troy, IL
Madison Co.
United States
SR 162 / Lakeview Acres Rd.
(38.73777, -89.93511)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
37.2639
Other (At-Grade)
Single-Lane
2013 ICD estimated from Google Maps linework.