|
City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways / ICD (m) |
Functional Class / LaneType |
Year Completed | Comments |
|---|---|---|---|---|---|---|---|
|
Scottsdale,
AZ Maricopa Co. United States |
N. 74th St. / E. Sweetwater Ave. (33.60395, -111.92155) |
Traffic Calming Circle Existing |
All-Way Yield None |
0 Approaches 0 Driveways 16.7640 |
Other (At-Grade) Unknown |
2003 | Modified by City in 2005 to improve operation as roundabout. 21442 |
|
Durham,
NC Durham Co. United States |
Glendale Ave. / Washington St. (36.02251, -78.90046) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 34.7744 |
Other (At-Grade) Single-Lane |
2000 | Modified circle, part of I-85 detour route. ICD estimated from Google Maps linework. |
|
La Quinta,
CA Riverside Co. United States |
Avenida Montezuma / Avenida Navarro (33.67616, -116.30460) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.9560 |
Other (At-Grade) Single-Lane |
2007 | Modified from former geometrics to conform to roundabout. 21442 |
|
Buffalo,
NY Erie Co. United States |
Gates Circle (Delaware Ave. / Lafayette Ave.) (42.92054, -78.86776) |
Other Existing |
Unknown Unknown |
5 Approaches 0 Driveways 66.4699 |
Other (At-Grade) Unknown |
2002 | Modified in 2002 to incorporate roundabout principles. ICD estimated from Google Maps linework. 21442 |
|
Apex,
NC Wake Co. United States |
Blackburn Rd. / Orchard Villas Ave. (35.74781, -78.86505) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 27.1406 |
Other (At-Grade) Single-Lane |
2008 | Modified in 2012 to add splitter islands. ICD estimated from Google Maps linework. 21442 |
|
Hilliard,
OH Franklin Co. United States |
Britton Pkwy. / Anson Dr. (40.04156, -83.13125) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 54.8640 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2009 | Modified striping to eliminate fishhooks & convert to 2x1 in 2020 (converted EB from Thru/RT to RT only). |
|
Hillard,
OH Franklin Co. United States |
Britton Pkwy. / Davidson Rd. (40.04977, -83.13399) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 54.8640 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2009 | Modified striping to remove fishhooks in 2019. |
|
Grays,
England Essex United Kingdom |
A1306 / B186 (51.48926, 0.27230) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 89.2395 |
Other (At-Grade) Single-Lane |
Modified with striped spirals to be single-lane. ICD estimated from Google Maps linework. 21442 | |
|
San Diego,
CA San Diego Co. United States |
Florida Dr. / Morley Field Dr. (32.73983, -117.14367) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 24.3840 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2022 | Modular (quick build) construction. https://www.californiaconstructionnews.com/2022/10/01/construction-starts-on-modular-roundabout-quick-build/ |
|
Chesterfield,
VA Chesterfield Co. United States |
Otterdale Rd. / Hampton Park Dr. (37.39585, -77.70733) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2020 | Modular roundabout. http://www.virginiadot.org/newsroom/richmond/2020/modular-roundabout-installations-complete-in-chesterfield-county10-1-2020.asp |
|
Chesterfield,
VA Chesterfield Co. United States |
Otterdale Rd. / Harpers Mill Pkwy. (37.38280, -77.70556) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2020 | Modular roundabout. http://www.virginiadot.org/newsroom/richmond/2020/modular-roundabout-installations-complete-in-chesterfield-county10-1-2020.asp |
|
Midlothian,
VA Chesterfield Co. United States |
Spring Run Rd. / Bailey Bridge Rd. / Springford Pkwy. (37.38447, -77.65050) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2020 | Modular roundabout. http://www.virginiadot.org/newsroom/richmond/2020/modular-roundabout-installations-complete-in-chesterfield-county10-1-2020.asp |
|
Annandale,
VA Fairfax Co. United States |
Ravensworth Rd. / Jayhawk St. / Fountain Head Dr. (38.82630, -77.19993) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 22.8600 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2018 | Modular, rapid-install roundabout. |
|
Indianapolis,
IN Marion Co. United States |
Castle Creek Pkwy North Dr. / Castle Creek Pkwy East Dr. (39.91590, -86.06950) |
Other Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 54.0460 |
Other (At-Grade) Single-Lane |
More of a traffic circle than a roundabout. ICD estimated from Google Maps linework. | |
|
Indianapolis,
IN Marion Co. United States |
Monument Circle [Market St. / Meridian St.] (39.76848, -86.15804) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1820 | Most famous traffic circle in the State of Indiana. Completed 1820. |
|
Maple Grove,
MN Hennepin Co. United States |
Jonquil Ln. / 85th Ave. (45.10938, -93.43398) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 57.3175 |
Other (At-Grade) Single-Lane |
2001 | Mountable splitter islands, driverways in circle, parking in circle, pedestrian amenity in central island. Functional Class: Local ICD estimated from Google Maps linework. |
|
Wake Forest,
NC Wake Co. United States |
South Ave. (NC 98-US 1 Alt) / S Main St. (35.97893, -78.51203) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 21.2627 |
Other (At-Grade) Single-Lane |
2006 | Moving Ahead project. ICD estimated from Google Maps linework. |
|
Patcham,
England Brighton and Hove United Kingdom |
A23 (London Rd.) / Carden Rd. (50.85664, -0.15380) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways |
Other (At-Grade) Multilane (2 Lane, unspecified) |
Multilane mini-roundabout. | |
|
Palm Harbor,
FL Pinellas Co. United States |
US 19 Alternate (Palm Harbor Blvd.) / Florida Ave. (28.07797, -82.76724) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2023 | Multiuse trail on west side of roundabout. https://www.fdottampabay.com/project/486/437636-1-52-01 |
|
Liberty Hill,
TX Williamson Co. United States |
Loop 332 / CR 279 / Munro St. (30.66338, -97.92119) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2023 | Munro St is exit only. https://www.facebook.com/CityofLibertyHill/videos/roundabout/1258995458128112/ |
|
Milwaukee,
WI Milwaukee Co. United States |
W Locust St. / N 21st St. (43.07156, -87.96447) |
Traffic Calming Circle Existing |
One-Way/Two-Way Stop None |
4 Approaches 0 Driveways 16.1541 |
Other (At-Grade) Single-Lane |
2022 | N 21st St. is one-way northbound. |
|
Chattanooga,
TN Hamilton Co. United States |
SR 153 SB Ramps / N. Access Rd. / TVA offices (35.10868, -85.23122) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 97.7036 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2006 | N Access Road is a 4 lane arterial road. Fatal crash April 4, 2010. 11861-05. ICD estimated from Google Maps linework. |
|
Portland,
OR Multnomah Co. United States |
NE Yacht Harbor Drive (45.60542, -122.66034) |
Other Existing |
All-Way Yield Unknown |
1 Approaches 2 Driveways 25.9020 |
Other (At-Grade) Single-Lane |
2006 | N end of Yacht Harbor Drive, yield entry at south, driveway at west and driveway at east. ICD estimated from Google Maps linework. |
|
Kilpedder,
Co Wicklow Ireland |
R772 / N11 SB On-Ramp / Garden Village Ct. (53.10054, -6.10651) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Freeway Ramps (Grade-Separated) Single-Lane |
N11 SB On-Ramp is outbound only. | |
|
Sarasota,
FL Sarasota Co. United States |
Honore Ave. / Camus St. (27.33355, -82.46388) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.6465 |
Other (At-Grade) Single-Lane |
2010 | NB and SB right turn lanes. ICD estimated from Google Maps linework. |
|
Carson City,
NV Carson City Co. United States |
Arrowhead Dr. / I-580 NB Ramps / Imus Rd. (39.19840, -119.77380) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.6923 |
Freeway Ramps (Grade-Separated) Single-Lane |
2002 | NB off-ramp for Carson City Freeway (I-580) and extension of Imus Road. Overpass and roundabouts completed in 2002. ICD estimated from Google Maps linework. |
|
West Chester,
OH Butler Co. United States |
Lesourdsville West Chester Rd. / Becket Ridge Blvd. (39.34459, -84.41655) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 39.6240 |
Other (At-Grade) Single-Lane |
2020 | Near a junior high school. https://www.journal-news.com/news/newest-roundabout-opens-in-west-chester-as-dangerous-intersection-work-begins/PWKR73DU2VD53AOPGDM3VII2U4/ |
|
Argyle,
TX Denton Co. United States |
Cook St. / Boonesville Bend / Nora Ln. / Ellison Trace (33.10503, -97.18643) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.1000 |
Other (At-Grade) Single-Lane |
2014 | Near Argyle High School. Painted splitter islands. |
|
Lenexa,
KS Johnson Co. United States |
Marshall Dr. / W 95th St. WB Connector (38.95709, -94.73438) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 37.1492 |
Other (At-Grade) Single-Lane |
2016 | Near diverging diamond interchange. https://www.ksdot.org/Assets/wwwksdotorg/Headquarters/PDF_Files/2016-11-28_ProjectUpdate12_Web_FINAL_FactSheet-LowRes.pdf . ICD estimated from Google Maps linework. |
|
Lenexa,
KS Johnson Co. United States |
Marshall Dr. / W 95th St. EB Connector (38.95590, -94.73460) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 34.3636 |
Other (At-Grade) Single-Lane |
2016 | Near diverging diamond interchange. https://www.ksdot.org/Assets/wwwksdotorg/Headquarters/PDF_Files/2016-11-28_ProjectUpdate12_Web_FINAL_FactSheet-LowRes.pdf . ICD estimated from Google Maps linework. |
|
Bend,
OR Deschutes Co. United States |
NE 15th St. / Bear Creek Rd. (44.05150, -121.28400) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.9018 |
Other (At-Grade) Single-Lane |
2005 | Near elementary school. Crossing guard operation. ICD estimated from Google Maps linework. |
|
Charlotte,
NC Mecklenburg Co. United States |
E. 9th St. / N. Davidson St. (35.22668, -80.83273) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 41.9516 |
Other (At-Grade) Single-Lane |
2006 | Near elementary school. ICD estimated from Google Maps linework. |
|
Estero,
FL Lee Co. United States |
Williams Rd. / Chapel Trace (26.41990, -81.83160) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 29.9485 |
Other (At-Grade) Single-Lane |
2006 | Near Estero High School. ICD estimated from Google Maps linework. |
|
Bend,
OR Deschutes Co. United States |
SW Columbia St. / SW Simpson Ave. (44.04820, -121.32716) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2021 | Near fire station. |
|
El Paso,
TX El Paso Co. United States |
Sun Bowl Dr. / University Dr. (31.76872, -106.50750) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.7200 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2010 | Near football stadium. |
|
Greenfield,
IN Hancock Co. United States |
Broadway St. / McKenzie Rd. (39.79925, -85.77997) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 34.8685 |
Other (At-Grade) Single-Lane |
2004 | Near Greenfield-Central High School. http://www.indystar.com/apps/pbcs.dll/article?AID=/20071003/LOCAL/710030465/-1/LOCAL17 ICD estimated from Google Maps linework. |
|
Rochester Hills,
MI Oakland Co. United States |
Tienken Rd. / Sheldon Rd. (42.69626, -83.12320) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.6224 |
Other (At-Grade) Single-Lane |
2001 | Near Hart Middle School and Stoney Creek High School. Functional Class: Local ICD estimated from Google Maps linework. |
|
Coeur dAlene,
ID Kootenai Co. United States |
4th St. / Margaret Ave. (47.71537, -116.77880) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.1602 |
Other (At-Grade) Single-Lane |
2003 | Near high school. ICD estimated from Google Maps linework. |
|
Acoma Indian Reservation,
NM McKinley Co. United States |
Silver Dollar Rd. / Veterans Blvd. (35.07119, -107.56000) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 43.0093 |
Other (At-Grade) Single-Lane |
2010 | Near Hospital, low ADT, series of 3 roundabouts. ICD estimated from Google Maps linework. |
|
Billings,
MT Yellowstone Co. United States |
King Ave. / Olympic Blvd. (45.75507, -108.61360) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.1658 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2008 | Near Kohl's retail shopping center. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework. |
|
Redmond,
WA King Co. United States |
152nd Ave. NE / NE 36th Pl. / NE 31st St. (47.63828, -122.13550) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 27.3615 |
Other (At-Grade) Single-Lane |
2010 | Near Microsoft campus. Moderate ped/bike volumes. ICD estimated from Google Maps linework. |
|
Sharon,
PA Mercer Co. United States |
Connelly Blvd. / Dock St. (41.23144, -80.50617) |
Roundabout Existing |
All-Way Yield At-grade Rail Crossing Signal/Beacon |
4 Approaches 1 Driveways 44.9099 |
Other (At-Grade) Single-Lane |
2018 | Near railroad crossing with flashing lights but no gates. ICD estimated from Google Maps linework. |
|
Watertown,
WI Jefferson Co. United States |
Jefferson Rd. / CTH Y (43.15325, -88.75062) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.5944 |
Other (At-Grade) Single-Lane |
2010 | Near railroad crossing. ICD estimated from Google Maps linework. |
|
Branson,
MO Taney Co. United States |
Branson Landing Blvd. / Veterans Blvd. / Skaggs Rd. / Parnell Dr. (36.64981, -93.21976) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 63.2418 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2006 | Near Skaggs Community Health Center Hospital. Veterans Boulevard was formerly Business 65 but was transferred from MoDOT to the city. Cost of roundabout was $1.9 million. News article: http://www.news-leader.com/apps/pbcs.dll/article?Date=20060324&Category=NEWS02&ArtNo=603240360&SectionCat=&Template=printart ICD estimated from Google Maps linework. |
|
Galt,
CA Sacramento Co. United States |
Twin Cities Rd. / E Stockton Blvd. (38.29108, -121.31110) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 35.6210 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2014 | Near SR 99 NB freeway ramps. ICD estimated from Google Maps linework. |
|
Galt,
CA Sacramento Co. United States |
Twin Cities Rd. / W Stockton Blvd. (38.29105, -121.31340) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 33.7463 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2014 | Near SR 99 SB freeway ramps. ICD estimated from Google Maps linework. |
|
Monona,
WI Dane Co. United States |
S Towne Dr. / Industrial Dr. (43.04082, -89.35458) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 34.9158 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2007 | Near Super-Walmart. Opened August 7, 2007. ICD estimated from Google Maps linework. |
|
Hutchinson,
KS Reno Co. United States |
23rd Ave. / Severence St. (38.07940, -97.91340) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 34.7846 |
Other (At-Grade) Single-Lane |
2000 | Near the state fairgrounds in Hutchinson Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework. |
|
Nampa,
ID Canyon Co. United States |
Ustick Rd. / Santa Ana Ave. (43.63404, -116.60317) |
Roundabout Existing |
All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) |
4 Approaches 0 Driveways 44.1960 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2022 | Near two schools. |
|
Davis,
CA Yolo Co. United States |
Hutchison Dr. / Hutchison Pl. / Sage St. (38.53933, -121.77160) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Single-Lane |
2010 | Near University of California Davis college campus. Constructed initially as two-lane roundabout; converted to single-lane in 2020-2022. |
|
Davis,
CA Yolo Co. United States |
Hutchison Dr. / Campbell Rd. (38.53686, -121.77170) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.4343 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2010 | Near University of California Davis college campus. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Poughkeepsie,
NY Dutchess Co. United States |
Rte 376 / Vassar Lake Dr. (41.68654, -73.89823) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 18.7303 |
Other (At-Grade) Single-Lane |
2006 | Near Vassar College ICD estimated from Google Maps linework. |
|
Poughkeepsie,
NY Dutchess Co. United States |
Rte 376 / College Ave. (41.68975, -73.89973) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 26.7562 |
Other (At-Grade) Single-Lane |
2006 | Near Vassar College ICD estimated from Google Maps linework. |
|
Poughkeepsie,
NY Dutchess Co. United States |
Rte 376 / Collegeview Ave. (41.69179, -73.90046) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.3227 |
Other (At-Grade) Single-Lane |
2008 | Near Vassar College ICD estimated from Google Maps linework. |
|
Golden,
CO Jefferson Co. United States |
Heritage Rd. / W 4th Ave. (39.72190, -105.21004) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 12.8607 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2015 | Nearby pedestrian overcrossing in addition to at-grade pedestrian crossing on north leg. ICD estimated from Google Maps linework. |
|
Quincy,
MA Norfolk Co. United States |
Palmer St / Yardarm Ln / Bicknell St (42.25300, -70.96574) |
Rotary Existing |
Uncontrolled None |
4 Approaches 2 Driveways 70.7217 |
Other (At-Grade) Single-Lane |
Neighborhood area ICD estimated from Google Maps linework. | |
|
Charlottesville,
VA Charlottesville Co. United States |
109 Burnet St (38.02424, -78.48827) |
Traffic Calming Circle Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 13.1717 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2017 | Neighborhood mini-roundabout placed in lieu of all-way stop when a new section was added in residential development in the City of Charlottesville. ICD estimated from Google Maps linework. |
|
Phoenix,
AZ Maricopa Co. United States |
South 20th Drive. / (none) (33.37556, -112.10290) |
Traffic Calming Circle Existing |
Unknown Unknown |
2 Approaches 0 Driveways 16.9552 |
Other (At-Grade) Single-Lane |
2003 | Neighborhood traffic calming. ICD estimated from Google Maps linework. |
|
Charlottesville,
VA Albemarle Co. United States |
775 Belvedere Blvd (38.07317, -78.45885) |
Other Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 154.1935 |
Other (At-Grade) Single-Lane |
2016 | Neighborhood Traffic Circle constructed with buildout of Belvedere Development ICD estimated from Google Maps linework. |
|
Portland,
OR Multnomah Co. United States |
NE 7th Ave. / NE Morris St. (45.54468, -122.65860) |
Traffic Calming Circle Removed |
One-Way/Two-Way Stop None |
3 Approaches 0 Driveways 128.8135 |
Other (At-Grade) Single-Lane |
2013 | Neighborhood traffic circle was installed 1/9/1992. Removed in 2013 as part of upgrades to the Neighborhood Greenway. Added speed humps nearby. ICD estimated from Google Maps linework. |
|
Frisco,
TX Collin Co. United States |
Vita Dolce Dr. / Toscana Way (33.17776, -96.80012) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 42.6717 |
Other (At-Grade) Single-Lane |
2004 | Neighborhood. |
|
Glendale,
AZ Maricopa Co. United States |
N 87th Ave. / W Montebello Ave. / (parking) (33.51695, -112.24749) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Single-Lane |
2019 | New city collector street, private developer funded. |
|
Durham,
NC Durham Co. United States |
Towerview Rd. / Campus Dr. (35.99779, -78.93916) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 24.1565 |
Other (At-Grade) Single-Lane |
2004 | New entrance to parking areas on Duke University campus. ICD estimated from Google Maps linework. |
|
Emporia,
KS Lyon Co. United States |
(connector to US 50) / I-35 Ramps (38.41494, -96.22918) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 97.5360 |
Freeway Ramps (Grade-Separated) Single-Lane |
2008 | New interchange configuration. Elliptical shaped. ICD = 320 ft x 270 ft. Constructed initially as half double-lane, half triple-lane. Opened November 2008. |
|
Emporia,
KS Lyon Co. United States |
US 50 / (connector to I-35) (38.41225, -96.22947) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 79.2480 |
Other (At-Grade) Single-Lane |
2008 | New interchange configuration. Half double-lane, half triple-lane. Opened November 2008. Modified 2011-2013 to reduce lanes. NCHRP Synthesis 488. 21442 |
|
Boardman,
NC Columbus Co. United States |
Old Boardman Rd. / US 74 WB Ramps (34.43547, -78.94924) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Freeway Ramps (Grade-Separated) Single-Lane |
2023 | New interchange replaces single at-grade, stop-controlled intersection. https://www.nrcolumbus.com/news/new-boardman-interchange-open-to-traffic-ncdot-says/article_feaec6c2-4c23-11ee-a358-437c17d778ff.html. |
|
Boardman,
NC Columbus Co. United States |
Old Boardman Rd. / US 74 EB Ramps (34.43447, -78.95052) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Freeway Ramps (Grade-Separated) Single-Lane |
2023 | New interchange replaces single at-grade, stop-controlled intersection. https://www.nrcolumbus.com/news/new-boardman-interchange-open-to-traffic-ncdot-says/article_feaec6c2-4c23-11ee-a358-437c17d778ff.html. |
|
Bern,
PA Berks Co. United States |
SR 183 (Bernville Rd.) / Wellness Way (40.37421, -75.97048) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 44.1960 |
Other (At-Grade) Single-Lane |
2020 | New intersection installed as part of development. |
|
Spokane,
WA Spokane Co. United States |
SR 290 (Trent Ave) / Martin Luther King Jr Way / Perry St. (47.66163, -117.39014) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 19.3053 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2018 | New intersection of MLK Jr. Way and SR 290. Open to traffic August 5, 2018. Two circulating lanes for SR 290 WB entry leg ICD estimated from Google Maps linework. |
|
Bourne,
MA Barnstable Co. United States |
Otis Rotary [MacArthur Blvd. (Rte 28) / Connery Ave. / Sandwich Rd. (Rte 28A)] (41.68534, -70.59144) |
Rotary Existing |
All-Way Yield None |
4 Approaches 0 Driveways 249.9360 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2017 | New lane configuration/striping in 2017. ICD = 820 ft x 620 ft. 21442 |
|
Durham,
NC Durham Co. United States |
Circuit Dr. / Research Dr. (36.00615, -78.94078) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 22.2216 |
Other (At-Grade) Single-Lane |
2003 | New north-south road through Duke University campus. ICD estimated from Google Maps linework. |
|
Boston,
MA Suffolk Co. United States |
Northern Ave / Massport Haul Rd / Fid Kennedy Rd (42.34767, -71.03621) |
Traffic Calming Circle Existing |
Other None |
4 Approaches 1 Driveways 24.7154 |
Other (At-Grade) Single-Lane |
New pavement markings (roundabout like) on approaches in June 2017. Control Type: 2 yield (Northern Ave), 1 stop Massport Haul Rd and 1 uncontrolled (stop sign is missing?) (Fid Kennedy Ave). ICD estimated from Google Maps linework. | |
|
Berlin,
MA Worcester Co. United States |
River Rd W / South St / Whitney Rd (42.35764, -71.62354) |
Rotary Existing |
All-Way Yield None |
4 Approaches 0 Driveways 60.0136 |
Other (At-Grade) Single-Lane |
New pavement markings (shark teeth and definition of circular roadway) in 2016 ICD estimated from Google Maps linework. | |
|
West Des Moines,
IA Dallas Co. United States |
Village View Dr. / Prairie View Dr. (Blue Stem Circle) (41.56376, -93.78467) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.5745 |
Other (At-Grade) Single-Lane |
2007 | New residential/commercial development on former Ponderosa Golf Course. ICD estimated from Google Maps linework. |
|
Liberty Township,
OH Butler Co. United States |
Veterans Blvd. / Bell Blvd. (39.37220, -84.35684) |
Roundabout Existing |
All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) |
4 Approaches 0 Driveways 54.8637 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2022 | New road, Veterans Blvd, constructed for new development. |
|
Bend,
OR Deschutes Co. United States |
NW Crossing Dr. / Lemhi Pass Rd. (44.06210, -121.34600) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 31.7544 |
Other (At-Grade) Single-Lane |
2006 | New roads as part of NW Crossing Development ICD estimated from Google Maps linework. |
|
Kennewick,
WA Benton Co. United States |
18th Ave. / Irving St. (46.19221, -119.19620) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 42.1649 |
Other (At-Grade) Single-Lane |
2006 | New roads/intersection in subdivision - completed February 2006. Functional Class: Local ICD estimated from Google Maps linework. |
|
Kennewick,
WA Benton Co. United States |
Creekstone Dr. / Irving St. (46.18894, -119.19640) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 33.0725 |
Other (At-Grade) Single-Lane |
2005 | New roadway (Creekstone) connecting into existing subdivision stub-street (Irving) on south side and new subdivision on north side Functional Class: Collector ICD estimated from Google Maps linework. |
|
Carmel,
IN Hamilton Co. United States |
Lowes Way / (shopping center entrance) (39.99786, -86.12268) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 40.2572 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2018 | New roundabout built as part of new southbound ramp project to keystone (ramp and overpass under construction). ICD estimated from Google Maps linework. |
|
Warwick,
RI Kent Co. United States |
Veteran's Memorial Dr. / Post Rd. / Post Rd. Extension (41.70266, -71.45475) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 59.7435 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2016 | New roundabout fully operational and opened in fall 2016. Note that traffic was previously NB only on Post Rd south of the roundbaout, and WB only on VMD, but traffic is now bi-directional in all directions. ICD estimated from Google Maps linework. |
|
Liberty Township,
OH Butler Co. United States |
Veterans Blvd. / Reagan Way (39.37030, -84.35617) |
Roundabout Existing |
All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) |
4 Approaches 0 Driveways 54.8637 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2022 | New roundabout on new alignment, Veterans Blvd, constructed for new commercial development (Costco). |
|
Carmel,
IN Hamilton Co. United States |
N Range Line Rd. / Lowes Way (39.99193, -86.12728) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 1 Driveways 0.0000 |
Other (At-Grade) Unknown |
2020 | New roundabout opened for connection to the new Lowes Way extension (will connect to the new overpass to the east over Keystone). https://www.hamiltoncounty.in.gov/881/Lowes-Way-Connection---Phase-2 . https://twitter.com/HamcoIndiana/status/1254047807759097859 |
|
Liberty Township,
OH Butler Co. United States |
SR 129 / Cox Rd. / Veterans Blvd. (39.37289, -84.36015) |
Roundabout Existing |
All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) |
4 Approaches 0 Driveways 62.4840 |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
2022 | New roundabout partially opened in November 2022. Full operation is scheduled in mid-December 2022. SR 129 highway was extended to Cox Road (local road) and new alignment (Veterans Blvd) was constructed to help alleviate traffic congestion and safety issues involving Liberty Way interchange with I-75. |
|
Albany,
NY Albany Co. United States |
Washington Ave. / CR 156 (Fuller Rd.) (42.69307, -73.83071) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 53.5475 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2012 | New roundabout will be just north of existing intersection. A flyover will carry through traffic on Washington Ave Functional Class: Arterial ICD estimated from Google Maps linework. |
|
Warwick,
RI Kent Co. United States |
Post Rd. / W. Shore Rd. (41.69980, -71.45348) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.6694 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2016 | New tear-drop roundabout. Only one approach (eb) has to yield. the WB approach is a free merge. Post Road (on west side of roundabout) is EB only. Fully operational - opened in fall 2016. Post Rod (SB) was previously 4 lanes NB only, now 2 lanes in each direction. 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. |
|
Miyako,
Iwate Pref. Japan |
Takonohamacho (39.64840, 141.96832) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other (At-Grade) Single-Lane |
Newly-built area in city destroyed by the tsunami in 2011. | |
|
Waco,
TX McLennan Co. United States |
Austin Ave. / N 38th St. (31.52991, -97.16233) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 18.2880 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2009 | News story at http://www.kcendt.com/?p=11617, Photos at http://www.waco-texas.com/photo-gallery/index22.htm. |
|
Waco,
TX McLennan Co. United States |
Austin Ave. / 29th St. (31.53724, -97.15418) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 27.4317 |
Other (At-Grade) Single-Lane |
2009 | News story at http://www.kcendt.com/?p=11617, Photos at http://www.waco-texas.com/photo-gallery/index22.htm. |
|
Las Vegas,
NV Clark Co. United States |
S Pavillion Center Dr. / Oval Park Dr. (36.15207, -115.33082) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.7680 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2014 | Next to baseball stadium. Completed initially with only 3 legs; 4th leg added 2019. |
|
Walled Lake,
MI Oakland Co. United States |
Loop Rd. / Commerce Crossing Dr. (42.53542, -83.44801) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 49.2829 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2006 | Next to Costco retail center and gas station. ICD estimated from Google Maps linework. |
|
El Paso,
TX El Paso Co. United States |
Pebble Hills Blvd. / (parking) (31.77636, -106.26610) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 44.1960 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2009 | Next to diamond interchange serving freeway commercial development. |
|
Enumclaw,
WA King Co. United States |
Semanski St. / Warner Ave. (47.19201, -122.00551) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.9560 |
Other (At-Grade) Single-Lane |
2021 | Next to Enumclaw High School. https://www.courierherald.com/news/council-awards-bid-for-roundabout-in-front-of-enumclaw-high/ |
|
Harrison,
OH Hamilton Co. United States |
Dry Fork Rd. / West Rd. (39.25461, -84.76702) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 33.5280 |
Other (At-Grade) Single-Lane |
2021 | Next to high school and junior high school. https://www.facebook.com/CityofHarrison/photos/a.155847067781927/4751915121508409/?type=3&source=48 |
|
Grand Rapids,
MI Kent Co. United States |
Cherry St. SE / Jefferson Ave. SE (42.95950, -85.66412) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 22.7254 |
Other (At-Grade) Single-Lane |
2007 | Next to hospital. ICD estimated from Google Maps linework. |
|
St. George,
UT Washington Co. United States |
750 N St. / 2860 E St. (37.12077, -113.52450) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 29.5218 |
Other (At-Grade) Single-Lane |
2001 | Next to school campus. ICD estimated from Google Maps linework. |
|
Lawrence,
KS Douglas Co. United States |
Sunflower Park Rd / Inverness Dr (38.93745, -95.29810) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 111.4785 |
Other (At-Grade) Single-Lane |
2001 | Next to Sunflower Elementary School and Southwest Junior High School. Functional Class: Collector ICD estimated from Google Maps linework. |
|
Grand Rapids,
MN Itasca Co. United States |
10th St. SW (Golf Course Rd.) / Grand Itasca Clinic and Hospital entrance (47.22104, -93.55408) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.5019 |
Other (At-Grade) Single-Lane |
2005 | No accidents reported to date (2007). Rural environment. ICD estimated from Google Maps linework. |
|
San Antonio,
TX Bexar Co. United States |
Bella Vista Pl. / Palatine Hill (29.42546, -98.76859) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.1000 |
Other (At-Grade) Single-Lane |
2005 | No buffer between sidewalk and circulatory roadway. |
|
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. |