|
City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways / ICD (m) |
Functional Class / LaneType |
Year Completed | Comments |
|---|---|---|---|---|---|---|---|
|
Marysville,
WA Snohomish Co. United States |
3rd St. / Union Ave. (48.05088, -122.16967) |
Traffic Calming Circle Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2016 | |
|
Marysville,
WA Snohomish Co. United States |
92nd St. NE / 46th Dr. NE (48.07910, -122.16836) |
Traffic Calming Circle Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 13.7157 |
Other (At-Grade) Single-Lane |
||
|
Bothell,
WA Snohomish Co. United States |
SR 524 (Maltby Rd.) / (unknown) (47.80956, -122.16689) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
2020 | |
|
Bonney Lake,
WA Pierce Co. United States |
198th Ave. E / Cascadia Blvd. E (47.12299, -122.16688) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 44.6959 |
Other (At-Grade) Single-Lane |
2008 | Fourth (southeast) leg added 2018. ICD estimated from Google Maps linework. |
|
Marysville,
WA Snohomish Co. United States |
92nd St. NE / 48th Dr. NE (48.07907, -122.16566) |
Traffic Calming Circle Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 13.7160 |
Other (At-Grade) Single-Lane |
||
|
Stanford,
CA Santa Clara Co. United States |
Campus Dr. / Galvez St. (37.43156, -122.16420) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 32.2453 |
Other (At-Grade) Single-Lane |
2016 | ICD estimated from Google Maps linework. |
|
Stanford,
CA Santa Clara Co. United States |
Galvez St. / Arboretum Rd. (37.43602, -122.16281) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2019 | Right-turn bypass lane on northeast leg; through bypass lane on southwest leg. Year Completed estimated (2018-2020). |
|
Marysville,
WA Snohomish Co. United States |
Shoultes Rd. / 51st Ave. NE / 108th St. NE (48.09268, -122.16210) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 29.5158 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2006 | Opened September 2006. ICD estimated from Google Maps linework. |
|
Stanford,
CA Santa Clara Co. United States |
Campus Dr. / Bowdoin St. (37.42271, -122.16149) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 27.5066 |
Other (At-Grade) Single-Lane |
2015 | ICD estimated from Google Maps linework. |
|
Woodinville,
WA King Co. United States |
NE 171st St. / 131st Ave. NE / (parking) (47.75074, -122.16148) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2018 | Year Completed estimated (2018-2019). |
|
Stanford,
CA Santa Clara Co. United States |
Campus Dr. / Escondido Rd. (37.42427, -122.16053) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 19.9182 |
Other (At-Grade) Single-Lane |
2014 | ICD estimated from Google Maps linework. |
|
Stanford,
CA Santa Clara Co. United States |
Campus Dr. / Serra St. (37.42679, -122.15944) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.5257 |
Other (At-Grade) Single-Lane |
2018 | https://transportation.stanford.edu/news/stanfords-fifth-roundabout-open-serra-street-and-campus-drive-east ICD estimated from Google Maps linework. |
|
Woodinville,
WA King Co. United States |
NE 171st St. / 135th Ave. NE (47.75063, -122.15921) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2017 | Year Completed estimated (2017-2018). |
|
Woodinville,
WA King Co. United States |
136th Ave. NE / Woodinville High School Entrance (47.77161, -122.15860) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 25.6862 |
Other (At-Grade) Single-Lane |
2003 | Opened October 2003. ICD estimated from Google Maps linework. |
|
Mill Creek,
WA Snohomish Co. United States |
SE 116th St. / 56th Ave SE (47.89201, -122.15856) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 80.8842 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2012 | Open August 2012. ICD estimated from Google Maps linework. |
|
Palo Alto,
CA Santa Clara Co. United States |
Lytton Ave. / Fulton St. (37.45214, -122.15750) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 9.4813 |
Other (At-Grade) Single-Lane |
Functional Class: Local ICD estimated from Google Maps linework. | |
|
Eastgate,
WA King Co. United States |
SE 40th St. / 138th Ave. SE (47.57459, -122.15670) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 40.2865 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2019 | Mini-roundabout adjacent Tyee Middle School, completed October 2019. ICD estimated from Google Maps linework. |
|
Palo Alto,
CA Santa Clara Co. United States |
Addison Ave. / Bryant St. (37.44197, -122.15540) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 15.1722 |
Other (At-Grade) Single-Lane |
Functional Class: Local ICD estimated from Google Maps linework. | |
|
Orinda,
CA Contra Costa Co. United States |
Hall Dr. / Donald Dr. (37.86411, -122.15310) |
Traffic Calming Circle Existing |
All-Way Yield Unknown |
5 Approaches 0 Driveways 17.9148 |
Other (At-Grade) Single-Lane |
2002 | ICD estimated from Google Maps linework. |
|
Arlington Bluff,
WA Snohomish Co. United States |
SR 530 / 59th Ave. NE (48.18839, -122.15068) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2023 | https://www.arlingtonwa.gov/735/SR-530---59th-211th-Roundabouts |
|
Palo Alto,
CA Santa Clara Co. United States |
Park Blvd. / Park Ave. (37.43076, -122.14980) |
Traffic Calming Circle Existing |
Unknown Unknown |
3 Approaches 0 Driveways 24.6585 |
Other (At-Grade) Single-Lane |
Functional Class: Local ICD estimated from Google Maps linework. | |
|
Renton,
WA King Co. United States |
SE 176th St. / SE 171st Way (47.44500, -122.14831) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 23.4239 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2019 | Mini-roundabout in a suburban neighborhood context, completed November 2019. ICD estimated from Google Maps linework. |
|
Bellevue,
WA King Co. United States |
Landerholm Rd. / South Perimeter Cir. (47.58438, -122.14600) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 33.8343 |
Other (At-Grade) Single-Lane |
2003 | Opened July 2003. Entrance to Bellevue Community College. ICD estimated from Google Maps linework. |
|
Woodinville,
WA King Co. United States |
SR 202 / (parking) (47.73280, -122.14400) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 33.5280 |
Other (At-Grade) Single-Lane |
2009 | October 2009. |
|
Arlington,
WA Snohomish Co. United States |
SR 530 / 211th Pl. NE (48.18852, -122.14376) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2023 | https://www.arlingtonwa.gov/735/SR-530---59th-211th-Roundabouts |
|
Woodinville,
WA King Co. United States |
SR 202 / NE 145th St. / 148th Ave. NE (47.73271, -122.14220) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 47.2440 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2009 | October 2009. |
|
Woodinville,
WA King Co. United States |
SR 202 / Village Dr. / NE 144th St. (47.73111, -122.14040) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.4048 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2009 | Constructed as single-lane roundabout in October 2009 and expanded to include second lane northbound in 2021. |
|
Kendall,
WA Whatcom Co. United States |
SR 542 / SR 547 (Kendall Corner) (48.91692, -122.13767) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 34.5337 |
Other (At-Grade) Single-Lane |
2015 | Open September 2015. 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. |
|
Bellevue,
WA King Co. United States |
SE 46th Way / 157th Ave. SE (47.56285, -122.13218) |
Traffic Calming Circle Existing |
One-Way/Two-Way Stop None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
|
Arlington,
WA Snohomish Co. United States |
W. Division St. / N. West Ave. (48.19864, -122.12800) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 27.8628 |
Other (At-Grade) Single-Lane |
2002 | September 2002. ICD estimated from Google Maps linework. |
|
Arlington,
WA Snohomish Co. United States |
204 St. NE / 77th Ave. NE (48.18082, -122.12637) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2021 | Elliptical shaped. http://www.arlingtonwa.gov/643/204th-St-NE-77th-Avenue-NE-Roundabout |
|
Arlington,
WA Snohomish Co. United States |
E. Division St. / N. Broadway St. (48.19858, -122.12530) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 23.8824 |
Other (At-Grade) Single-Lane |
2002 | September 2002. ICD estimated from Google Maps linework. |
|
Redmond,
WA King Co. United States |
NE 116th St. / 162nd Ave. NE (47.70420, -122.12313) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 116.5413 |
Other (At-Grade) Single-Lane |
2014 | Open May 2014. ICD estimated from Google Maps linework. |
|
Covington,
WA King Co. United States |
SE 256th St. / 164th Ave. SE (47.37256, -122.12290) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 50.1477 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2007 | Open September 2007. ICD estimated from Google Maps linework. |
|
Redmond,
WA King Co. United States |
NE 76th St. / 164th Ave. NE (47.67214, -122.12180) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 99.7242 |
Other (At-Grade) Single-Lane |
2012 | Oblong shape. Connected two T-intersections on either side of median to allow crossing and left-turn movements. Open December 2012. ICD estimated from Google Maps linework. |
|
Eastgate,
WA King Co. United States |
SE Newport Way / 164th Ave. SE (47.57236, -122.12142) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 19.5072 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2019 | https://dev.bellevuewa.gov/sites/default/files/media/pdf_document/levy-164th-SE-newport-way-roundabout-mailer-2018.pdf |
|
Lake Stevens,
WA Snohomish Co. United States |
Soper Hill Rd. / 83rd Ave. NE (48.02162, -122.11931) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 22.8600 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2020 | https://www.heraldnet.com/news/soper-hill-roundabout-and-pedestrian-trail-work-wraps-up/ |
|
Covington,
WA King Co. United States |
168th Pl. SE / Costco Entrance (47.35463, -122.11860) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.6463 |
Other (At-Grade) Single-Lane |
2008 | November 2008. Entrance into Costco shopping center. ICD estimated from Google Maps linework. |
|
Covington,
WA King Co. United States |
168th Pl. SE / Fred Meyer Entrance (47.35698, -122.11680) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 105.1794 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2008 | November 2008. Entrance into Fred Meyer shopping center. ICD estimated from Google Maps linework. |
|
Arlington,
WA Snohomish Co. United States |
SR 531 (172nd St NE) / SR 9 (48.15166, -122.11325) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 40.6373 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2012 | Open October 2012. ICD estimated from Google Maps linework. |
|
Covington,
WA King Co. United States |
172nd Ave. SE / SE 270th Pl. (47.35939, -122.11240) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 34.7885 |
Other (At-Grade) Single-Lane |
2001 | ICD estimated from Google Maps linework. |
|
Marysville,
WA Snohomish Co. United States |
SR 9 / 108th St NE (48.09180, -122.11180) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Single-Lane |
2020 | Year Completed estimated (2018-2020). |
|
Palo Alto,
CA Santa Clara Co. United States |
E Meadow Dr. / Ross Rd. (37.42600, -122.11139) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 13.2785 |
Other (At-Grade) Single-Lane |
2018 | ICD estimated from Google Maps linework. |
|
Marysville,
WA Snohomish Co. United States |
SR 9 / 84th St. NE / Getchell Rd. (48.07196, -122.11135) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Single-Lane |
2014 | Right-turn-only lanes on all four legs. Open October 2014. |
|
Redmond,
WA King Co. United States |
NE 116th St. / 172nd Ave. NE (47.70403, -122.11106) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.5420 |
Other (At-Grade) Single-Lane |
2015 | Open April 2015. ICD estimated from Google Maps linework. |
|
Lake Stevens,
WA Snohomish Co. United States |
Vernon Rd. / 91st Ave. SE (48.00354, -122.10817) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 24.3840 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2022 | Peanut shaped. ICD = 80 ft for each node, 185 ft for overall length. No deflection on north and south legs prior to entry. https://www.reddit.com/r/Suburbanhell/comments/y403wy/a_new_peanut_shaped_roundabout_my_city_just/?rdt=48505 |
|
Lake Stevens,
WA Snohomish Co. United States |
SR 9 / Vernon Rd. (48.00461, -122.10670) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.7200 |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
2023 | https://www.youtube.com/watch?v=5RRqjCCJjRc |
|
Lake Stevens,
WA Snohomish Co. United States |
SR 9 / SR 204 (Snohomish Marysville Rd.) / 7th Pl. NE (48.00286, -122.10637) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.7200 |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
2023 | https://www.youtube.com/watch?v=5RRqjCCJjRc |
|
Lake Stevens,
WA Snohomish Co. United States |
N Davies Rd. / Vernon Rd. / Frontage Rd. (48.00477, -122.10589) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 19.8120 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2023 | Originally opened July 2012. Shifted to east 2022-2023 as part of construction of SR 9/Vernon Rd roundabout. |
|
Lake Stevens,
WA Snohomish Co. United States |
N Davies Rd. / Frontier Village Access Rd. (48.00472, -122.10462) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 18.2880 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2012 | Painted splitter islands. Open July 2012. |
|
Auburn,
WA King Co. United States |
SE 392nd St. / (parking lot) (47.24986, -122.10399) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 28.3750 |
Other (At-Grade) Single-Lane |
2012 | ICD estimated from Google Maps linework. |
|
Lake Stevens,
WA Snohomish Co. United States |
Lake Dr. / 29th St. NE (48.02479, -122.10383) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 24.3840 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2017 | |
|
West Lake Stevens,
WA Snohomish Co. United States |
SR 9 / S Lake Stevens Rd. (47.97461, -122.10273) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2022 | https://www.tiktok.com/@j_will_entrepreneur/video/7151997176799939883?is_from_webapp=v1&item_id=7151997176799939883 |
|
Covington,
WA King Co. United States |
SE Wax Rd. / 180th Ave. SE / SE 267th Pl. (47.36216, -122.10200) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 53.3935 |
Other (At-Grade) Single-Lane |
2008 | September 2008. ICD estimated from Google Maps linework. |
|
Snohomish,
WA Snohomish Co. United States |
SR 9 / Bickford Ave. (47.93379, -122.10107) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.1000 |
Other (At-Grade) Single-Lane |
2022 | WSDOT safety project that was completed in early Sept 2022. Includes right-turn bypass lane for NB to EB movement |
|
Snohomish,
WA Snohomish Co. United States |
Ave. D / Bickford Ave. / 15th St. (47.93037, -122.10101) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 79.2238 |
Other (At-Grade) Single-Lane |
2014 | Open July 2014. ICD estimated from Google Maps linework. |
|
Lake Stevens,
WA Snohomish Co. United States |
Lundeen Parkway / Soper Hill Rd. (48.01557, -122.10010) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 29.5601 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2010 | ICD estimated from Google Maps linework. |
|
Bellevue,
WA King Co. United States |
W. Lake Sammamish Pkwy. SE / Lakemont Blvd. SE (47.56776, -122.09980) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 35.4567 |
Other (At-Grade) Single-Lane |
1997 | Revised August 2005. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. |
|
Bellevue,
WA King Co. United States |
W Lake Sammamish Pkwy SE / I-90 WB Ramps (47.56690, -122.09947) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 139.9998 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2013 | Open November 2013. Raindrop shape. |
|
Lake Stevens,
WA Snohomish Co. United States |
SR 92 / 99th Ave NE (48.02885, -122.09804) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.5396 |
Other (At-Grade) Single-Lane |
2013 | Reverse curves on east and west approaches. Open November 2013. ICD estimated from Google Maps linework. |
|
Lafayette,
CA Contra Costa Co. United States |
Olympic Blvd. / Pleasant Hill Rd. (37.88604, -122.09300) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 33.5280 |
Other (At-Grade) Single-Lane |
2017 | Yield-controlled right-turn bypass lanes on north and east legs. Painted splitter island on south leg. |
|
Fairfield,
CA Solano Co. United States |
Rockville Rd. / Abernathy Rd. (38.24598, -122.09074) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 23.4495 |
Other (At-Grade) Single-Lane |
2005 | ICD estimated from Google Maps linework. |
|
Lake Stevens,
WA Snohomish Co. United States |
Lundeen Park Way / Callow Rd. / Lakeview Dr. / Vernon Rd. (48.01797, -122.09050) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 31.9553 |
Other (At-Grade) Single-Lane |
2006 | http://www1.co.snohomish.wa.us/Departments/Public_Works/Services/Roads/Projects/LundeenCallow.htm. Opened June 2006. ICD estimated from Google Maps linework. |
|
Cupertino,
CA Santa Clara Co. United States |
Cristo Rey Dr. / Hammond Way / Canyon Oak Way (37.33058, -122.08070) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 36.0875 |
Other (At-Grade) Single-Lane |
2000 | Functional Class: Local ICD estimated from Google Maps linework. |
|
Redmond,
WA King Co. United States |
NE Novelty Hill Rd. / 195th Ave. NE (47.68845, -122.07993) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.5909 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2012 | Open October 2012. ICD estimated from Google Maps linework. |
|
Redmond,
WA King Co. United States |
NE Union Hill Rd. / 196th Ave. NE (47.67501, -122.07901) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.7680 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2012 | Open September 2012. |
|
Lake Stevens,
WA Snohomish Co. United States |
SR 92 / 113th Ave. SE (48.03019, -122.07884) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.9412 |
Other (At-Grade) Single-Lane |
2013 | Reverse curves on east and west approaches. Open November 2013. ICD estimated from Google Maps linework. |
|
Hayward,
CA Alameda Co. United States |
Orchard Ave. / Joyce St. (37.65808, -122.07850) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 18.9103 |
Other (At-Grade) Single-Lane |
2000 | Painted splitter islands. Built as temporary in February 2000, reconstructed permanent central island 2001 (http://ci.hayward.ca.us/citygov/meetings/cca/rp/2000/rp091900-05.pdf). ICD estimated from Google Maps linework. |
|
Issaquah,
WA King Co. United States |
Newport Way NW / NW Pacific Elm Dr. / 200th Ave. SE (47.54989, -122.07416) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 26.6016 |
Other (At-Grade) Single-Lane |
2018 | ICD estimated from Google Maps linework. |
|
Pleasant Hill,
CA Contra Costa Co. United States |
Old Quarry Rd. / Camelback Rd. (37.97273, -122.06894) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 30.1278 |
Other (At-Grade) Single-Lane |
2017 | Year Completed estimated (2017-2018). https://www.eastbaytimes.com/2017/02/20/pleasant-hill-roundabout-planned-near-diablo-valley-college/ ICD estimated from Google Maps linework. |
|
Issaquah,
WA King Co. United States |
19th Ave. NW / NW Gilman Blvd. (47.54571, -122.06644) |
Other Existing |
All-Way Yield None |
3 Approaches 0 Driveways 21.7667 |
Other (At-Grade) Single-Lane |
19th Ave legs have painted splitter islands. Completed 2008 or earlier (streetview). ICD estimated from Google Maps linework. | |
|
Issaquah,
WA King Co. United States |
East Lake Sammamish Parkway / SE 43rd Way (47.56792, -122.05500) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 38.6799 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2009 | ICD estimated from Google Maps linework. |
|
Sammamish,
WA King Co. United States |
NE Inglewood Hill / 216th Ave. NE (47.61554, -122.05180) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 31.3989 |
Other (At-Grade) Single-Lane |
2001 | October 2001. ICD estimated from Google Maps linework. |
|
Issaquah,
WA King Co. United States |
Maple St. NW / (parking lots) (47.54340, -122.05121) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 20.9614 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2017 | ICD estimated from Google Maps linework. |
|
Issaquah,
WA King Co. United States |
SE 62nd St. / Lake Dr. / Pickering Pl. (47.54599, -122.04930) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 22.5728 |
Other (At-Grade) Single-Lane |
2019 | https://www.youtube.com/watch?v=FGdBuaAZqVU. https://www.issaquahwa.gov/62. ICD estimated from Google Maps linework. |
|
Sammamish,
WA King Co. United States |
SE 4th St. / 218th Ave. SE (47.60555, -122.04899) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 21.9453 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2020 | |
|
Maple Valley,
WA King Co. United States |
Witte Rd. SE / SE 254th Pl. (47.37383, -122.04867) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2024 | https://www.maplevalleywa.gov/departments-services/public-works/capital-improvement-projects/current-transportation-improvement-projects/t-28b-ph-3-south-witte-road-se-roundabout-improvements |
|
Maple Valley,
WA King Co. United States |
Witte Rd. SE / SE 248th St. (47.37966, -122.04813) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2011 | January 2011. |
|
Sammamish,
WA King Co. United States |
SE 4th St. / 222nd Pl. SE (47.60554, -122.04307) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 19.8120 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2020 | |
|
Lake Stevens,
WA Snohomish Co. United States |
(unknown) (48.01194, -122.04305) |
Roundabout Existing |
All-Way Yield None |
2 Approaches 0 Driveways 30.4800 |
Other (At-Grade) Single-Lane |
2009 | Entrance to Lake Stevens Community Park. January 2009. |
|
Issaquah,
WA King Co. United States |
SE 62nd St. / 221st Pl. SE / 4th Ave. NW (47.54682, -122.04277) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.2155 |
Other (At-Grade) Single-Lane |
2019 | https://www.youtube.com/watch?v=FGdBuaAZqVU. https://www.issaquahwa.gov/62. ICD estimated from Google Maps linework. |
|
Sammamish,
WA King Co. United States |
SE 4th St. / 224th Ave. SE (47.60553, -122.04091) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 25.6032 |
Other (At-Grade) Single-Lane |
2020 | |
|
Sammamish,
WA King Co. United States |
SE 4th St. / 224th Pl. SE (47.60552, -122.03916) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 26.2128 |
Other (At-Grade) Single-Lane |
2020 | |
|
Maple Valley,
WA King Co. United States |
228th Ave. SE / SE 275th Pl. / SE Bear Blvd. (47.35485, -122.03766) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 27.4320 |
Other (At-Grade) Single-Lane |
2017 | Year Completed estimated (2016-2017). |
|
Maple Valley,
WA King Co. United States |
SE 240th Blvd. / 228th Ave. SE (47.38734, -122.03723) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 33.5280 |
Other (At-Grade) Single-Lane |
2018 | Southwest leg stubbed. Year Completed estimated (2017-2018). |
|
(unincorporated),
WA King Co. United States |
Redmond Ridge Dr. / NE Alder Crest Dr. (47.69211, -122.03572) |
Roundabout Unknown |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2024 | https://kingcounty.gov/en/dept/local-services/transit-transportation-roads/roads-and-bridges/projects-and-programs/redmond-ridge-dr-ne-roundabout (open to traffic, but final paving delayed by weather until Spring 2024) |
|
Black Diamond,
WA King Co. United States |
SE Auburn Black Diamond Rd. / Ten Trails Pkwy. SE (47.31106, -122.03510) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 41.4528 |
Other (At-Grade) Single-Lane |
2019 | North leg added 2021-2022. |
|
Alamo,
CA Contra Costa Co. United States |
Danville Blvd. / Orchard Ct. (37.85201, -122.03374) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.4800 |
Other (At-Grade) Single-Lane |
2024 | https://www.contracosta.ca.gov/8130/Danville-BlvdOrchard-Ct-Project-Alamo-Ro |
|
Redmond,
WA King Co. United States |
Redmond Ridge Dr. NE / NE Cedar Park Crest (47.68578, -122.03278) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.1000 |
Other (At-Grade) Single-Lane |
2011 | Year Completed estimated (2011-2012). |
|
Fairview,
CA Alameda Co. United States |
Fairview Ave. / Five Canyons Pkwy. / East Ave. (Star Ridge Rd.) (37.67520, -122.03220) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 20.7965 |
Other (At-Grade) Single-Lane |
1998 | https://www.sfgate.com/bayarea/article/COMMUTER-CHRONICLES-IN-A-ROUNDABOUT-WAY-The-2975842.php ICD estimated from Google Maps linework. |
|
Black Diamond,
WA King Co. United States |
SE Auburn Black Diamond Rd. / Roberts Dr. / Lake Sawyer Rd. SE (47.31151, -122.02996) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 33.2005 |
Other (At-Grade) Single-Lane |
2017 | ICD estimated from Google Maps linework. |
|
Sammamish,
WA King Co. United States |
NE 8th St. / 233rd Ave NE (47.61687, -122.02903) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 63.6012 |
Other (At-Grade) Single-Lane |
2012 | Open September 2012. ICD estimated from Google Maps linework. |
|
Sammamish,
WA King Co. United States |
Issaquah Pine Lake Rd. / SE 32nd Way (47.57894, -122.02810) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 33.8378 |
Other (At-Grade) Single-Lane |
2005 | Opened March 2005. ICD estimated from Google Maps linework. |
|
Redmond,
WA King Co. United States |
Trilogy Pkwy NE / NE Greens Crossing Rd. (47.70752, -122.02660) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 25.7178 |
Other (At-Grade) Single-Lane |
2004 | Adjacent to golf course and semi-retired community. Completed June 2004. ICD estimated from Google Maps linework. |
|
Santa Cruz,
CA Santa Cruz Co. United States |
Pacific Ave. / Center St. / W. Cliff Dr. (36.96490, -122.02620) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 32.4453 |
Other (At-Grade) Single-Lane |
2011 | ICD estimated from Google Maps linework. |
|
Santa Cruz,
CA Santa Cruz Co. United States |
Pacific Ave. / Beach St. (36.96282, -122.02388) |
Roundabout Existing |
All-Way Yield At-grade Rail Crossing Signals/Gates (controlling all approaches) |
4 Approaches 0 Driveways 41.1480 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2015 | Railroad tracks cut through part of circle. Separated two-way bicycle lane/cycle track along south side of intersection. |
|
Maple Valley,
WA King Co. United States |
SE Tahoma Way / Maple Valley Black Diamond Rd. SE (47.35796, -122.02252) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 27.5079 |
Other (At-Grade) Single-Lane |
2018 | East Entrance to Tahoma High School. Year Completed estimated (2018-2019). ICD estimated from Google Maps linework. |
|
Cupertino,
CA Santa Clara Co. United States |
Portal Ave. / Wheaton Dr. (37.32445, -122.01964) |
Traffic Calming Circle Existing |
All-Way Stop None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2001 | Year Completed estimated (2000-2002). |
|
Hayward Highland,
CA Alameda Co. United States |
Fairview Ave. / Hayward Blvd. / Stonebrae Country Club Dr. (37.65432, -122.01743) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.7681 |
Other (At-Grade) Single-Lane |
2006 | ICD estimated from Google Maps linework. |