Roundabouts Database

30012 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
San Francisco State University, CA
San Francisco Co.
United States 		Font Blvd. / (parking lot)
(37.72286, -122.48358) 		Other
Existing 		One-Way/Two-Way Stop
Unknown 		3 Approaches
0 Driveways
33.0641 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Arballo Dr.
(37.72177, -122.48231) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
35.8987 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Pinto Ave. / Holloway Ave.
(37.72069, -122.48105) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
32.1204 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Bucareli Dr. / Gonzalez Dr.
(37.71695, -122.48001) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
18.8953 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Serrano Dr.
(37.71957, -122.47976) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
32.1209 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Grijalva Dr. / Gonzalez Dr.
(37.71638, -122.47919) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
21.7298 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Juan Bautista Circle
(37.71804, -122.47795) 		Other
Existing 		All-Way Stop
Unknown 		7 Approaches
0 Driveways
120.9281 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Gonzalez Dr.
(37.71679, -122.47592) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
30.2325 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Crespi Dr. / Varela Ave. / Serrano Dr. / Gonzalez Dr.
(37.71990, -122.47589) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
43.4574 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Cambon Dr.
(37.71590, -122.47445) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
28.3433 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Chumasero Dr.
(37.71501, -122.47298) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
25.5093 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
Camas, WA
Clark Co.
United States 		SE Brady Rd. / Columbia Palisades Dr.
(45.58617, -122.47084) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6717 		Other (At-Grade)
Single-Lane 		2018
San Francisco, CA
San Francisco Co.
United States 		Claremont Blvd. / Taraval St. / Dewey Blvd. / Kensington Way
(37.74376, -122.46370) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
35.8881 		Other (At-Grade)
Single-Lane 		Stop-controlled traffic circle. ICD estimated from Google Maps linework.
Presidio, CA
San Francisco Co.
United States 		Lincoln Blvd. / Girard Rd.
(37.80065, -122.45385) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2021 Separated bike lanes on all legs. https://sf.streetsblog.org/2021/03/01/presidios-dutch-roundabout/
Lynden, WA
Whatcom Co.
United States 		SR 546 / Depot Rd.
(48.96478, -122.45217) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.2052 		Other (At-Grade)
Single-Lane 		2013 Open August 2013. ICD estimated from Google Maps linework.
Camas, WA
Clark Co.
United States 		NW Camas Meadows Dr. / NW Payne St. / NW Pittock Pl.
(45.62718, -122.45141) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.0037 		Other (At-Grade)
Single-Lane 		2018
Bay View, WA
Skagit Co.
United States 		Josh Wilson Rd. / Farm to Market Rd.
(48.48665, -122.44440) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://www.goskagit.com/townnews/economics/bay-view-area-roundabout-now-open/article_e9ac88a2-32e5-11ed-b607-03db0c4dca41.html
Mount Vernon, WA
Skagit Co.
United States 		Best Rd. / McLean Rd.
(48.42070, -122.44380) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.4976 		Other (At-Grade)
Single-Lane 		2009 April 2009. On high-speed rural roadways. ICD estimated from Google Maps linework.
Bellingham, WA
Whatcom Co.
United States 		E Smith Rd. / Hannegan Rd.
(48.83337, -122.44289) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2024 https://whatcom-news.com/hannegan-smith-intersection-to-reopen-as-a-multi-lane-roundabout_219458/
Lynden, WA
Whatcom Co.
United States 		SR 546 / Bender Rd.
(48.96442, -122.44116) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.2849 		Other (At-Grade)
Single-Lane 		2013 Open August 2013. ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Waller St. / Steiner St.
(37.77097, -122.43190) 		Traffic Calming Circle
Existing 		All-Way Stop
None 		4 Approaches
0 Driveways
66.0853 		Other (At-Grade)
Single-Lane 		2003 Preliminary layout for neighborhodd comment Functional Class: Local ICD estimated from Google Maps linework.
Camas, WA
Clark Co.
United States 		NW 6th Ave. / SR 14 WB Ramps / NW Norwood St.
(45.58216, -122.42684) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.1960 		Freeway Ramps (Grade-Separated)
Single-Lane 		2016
Camas, WA
Clark Co.
United States 		NW 44th Ave. / NW Jasmine St.
(45.60960, -122.42245) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.8221 		Other (At-Grade)
Single-Lane 		2012 No splitter islands, residential area.
Camas, WA
Clark Co.
United States 		NW 44th Ave. / NW Ivy St.
(45.60804, -122.42079) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Redding, CA
Shasta Co.
United States 		Teton Dr. / Crescent Moon Dr. / Crescent Moon Ct.
(40.56422, -122.41552) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
23.5899 		Other (At-Grade)
Single-Lane 		1997 Year completed estimated (before 1998). Pedestrian ramps into circulatory roadway. ICD estimated from Google Maps linework.
Redding, CA
Shasta Co.
United States 		Shasta St. / Almond Ave.
(40.58272, -122.40809) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2006
Lynden, WA
Whatcom Co.
United States 		SR 546 / Northwood Rd.
(48.96424, -122.40709) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.9551 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2016 Open June 2016. ICD estimated from Google Maps linework.
Camas, WA
Clark Co.
United States 		NE Everett St. / NW Lake Rd.
(45.60225, -122.40656) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021 https://www.camaspostrecord.com/news/2021/mar/25/camas-traffic-roundabout-completed/
Redding, CA
Shasta Co.
United States 		Shasta St. / Olive Ave.
(40.58343, -122.40524) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-lane w/ Traversable Central Island 		2006
Tacoma, WA
Pierce Co.
United States 		E 29th St. / E 30th St. / E 28th St.
(47.23811, -122.40505) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
27.5704 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		8th St. / Townsend St. / Division St. / Kansas St.
(37.76992, -122.40393) 		Other
Existing 		All-Way Stop
None 		5 Approaches
0 Driveways
33.0431 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Camas, WA
Clark Co.
United States 		NE Woodburn Dr. / NE Laurel St.
(45.60703, -122.39789) 		Unknown
Existing 		Unknown
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2018 Painted splitter islands. Year Completed estimated (2017-2018).
San Francisco, CA
San Francisco Co.
United States 		Mission Bay Dr. / Mission Bay Blvd. / Owens St. / Channel St.
(37.77048, -122.39599) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
78.3588 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 Year Completed estimated (2011-2012). ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		NW 75th St. / 30th Ave. NW
(47.68305, -122.39575) 		Traffic Calming Circle
Existing 		Uncontrolled
None 		4 Approaches
0 Driveways
16.1541 		Other (At-Grade)
Single-Lane
Federal Way, WA
King Co.
United States 		SW 329th Way / 49th Ave. SW
(47.30724, -122.39523) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.3357 		Other (At-Grade)
Single-Lane 		2017 Painted splitter islands.
Federal Way, WA
King Co.
United States 		SR 509 (SW Dash Point Rd.) / 47th Ave. SW
(47.32161, -122.39253) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.4317 		Other (At-Grade)
Single-Lane 		2022
Seattle, WA
King Co.
United States 		44th Ave. SW / SW College St.
(47.58301, -122.38780) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
37.0576 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Ballard, WA
King Co.
United States 		NW 83rd St. / Jones Ave. NW
(47.68870, -122.38650) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Washougal, WA
Clark Co.
United States 		SE Union St. / 8th Ave.
(45.58089, -122.38580) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.9288 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		42nd Ave. SW / SW Hinds St.
(47.57318, -122.38570) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
9.6690 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Washougal, WA
Clark Co.
United States 		SE Union St. / Front St.
(45.57985, -122.38560) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.4371 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Ballard, WA
King Co.
United States 		NW 83rd St. / 23rd Ave. NW
(47.68871, -122.38542) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 83rd St. / 22nd Ave. NW
(47.68871, -122.38435) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 77th St. / 22nd Ave. NW
(47.68500, -122.38435) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 83rd St. / 21st Ave. NW
(47.68871, -122.38328) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Seattle, WA
King Co.
United States 		40th Ave. SW / SW Manning St.
(47.57122, -122.38250) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
7.2520 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Tacoma, WA
Pierce Co.
United States 		49th Ave. NE / 33rd St. NE / Norpoint Way NE
(47.28643, -122.38220) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
25.9249 		Other (At-Grade)
Single-Lane 		2004 Opened December 2004. ICD estimated from Google Maps linework.
Abbotsford, BC
Fraser Valley Regional District
Canada 		Mt Lehman Rd. / Old Yale Rd. / Hwy 1 WB Entrance Ramp
(49.05889, -122.38131) 		Roundabout
Removed 		All-Way Yield
None 		3 Approaches
0 Driveways
44.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2022 Roundabout (multilane, 2x2) constructed 2006 to replace a two-way stop intersection. Roundabout replaced with traffic signal in 2022.
Abbotsford, BC
Fraser Valley Regional District
Canada 		Mt Lehman Rd. / S Fraser Way
(49.05355, -122.38119) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2005 Year Completed estimated (2004-2006).
Crown Hill, WA
King Co.
United States 		NW 7tth St. / 19th Ave. NW
(47.68504, -122.38110) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 77th St. / 18th Ave. NW
(47.68505, -122.38004) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		17th Ave. NW / NW 83rd St
(47.68874, -122.37896) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 77th St. / 16th Ave. NW
(47.68506, -122.37788) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7637 		Other (At-Grade)
Single-Lane
Washougal, WA
Clark Co.
United States 		SE Port St. / Front St.
(45.58009, -122.37780) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.4214 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Washougal, WA
Clark Co.
United States 		SE Port St. / C St.
(45.58099, -122.37780) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.2878 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Bellingham, WA
Whatcom Co.
United States 		Everson Goshen Rd. / E Smith Rd.
(48.83263, -122.37755) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-lane w/ Traversable Central Island 		2015 Open June 2015.
Edmonds, WA
Snohomish Co.
United States 		Main St. / 5th Ave.
(47.81061, -122.37753) 		Other
Existing 		All-Way Stop
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Water fountain in the middle.
Ballard, WA
King Co.
United States 		NW 83rd St. / Mary Ave. NW
(47.68875, -122.37549) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 77th St. / Mary Ave. NW
(47.68508, -122.37547) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Seattle, WA
King Co.
United States 		34th Ave. SW / SW Henderson St.
(47.52286, -122.37530) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
42.7458 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		34th Ave. SW / SW Elmgrove St.
(47.53009, -122.37530) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Ballard, WA
King Co.
United States 		NW 83rd St. / 14th Ave. NW
(47.68875, -122.37413) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 83rd St. / 12th Ave. NW
(47.68875, -122.37144) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Seattle, WA
King Co.
United States 		30th Ave. SW / SW Cloverdale St.
(47.52648, -122.37120) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
64.5176 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Ballard, WA
King Co.
United States 		NW 83rd St. / 11th Ave. NW
(47.68875, -122.37041) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Federal Way, WA
King Co.
United States 		SW 349th St. / 27th Ave. SW
(47.28883, -122.36857) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2005 Painted splitter islands
Ballard, WA
King Co.
United States 		NW 83rd St. / Dibble Ave. NW
(47.68911, -122.36729) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Crown Hill, WA
King Co.
United States 		NW 81st St. / 6th Ave. NW
(47.68766, -122.36334) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Greenwood, WA
King Co.
United States 		NW 82nd St. / 6th Ave. NW
(47.68839, -122.36333) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Greenwood, WA
King Co.
United States 		NW 83rd St. / 6th Ave. NW
(47.68911, -122.36333) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Shasta Lake, CA
Shasta Co.
United States 		Smith Ave. / Jorsack Way / Rosstay Way
(40.66503, -122.36168) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2006 Crosswalks are at unmarked entrance lines.
Edmonds, WA
Snohomish Co.
United States 		Emerald Hills Dr. / 12th Ave. N
(47.81132, -122.35936) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		No splitter islands.
Federal Way, WA
King Co.
United States 		19th Ave. SW / SW 353rd Pl.
(47.28501, -122.35852) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.9456 		Other (At-Grade)
Single-Lane 		2020
Greenwood, WA
King Co.
United States 		1st Ave. NW / NW 83rd St.
(47.68911, -122.35799) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
15.2400 		Other (At-Grade)
Single-Lane
Crown Hill, WA
King Co.
United States 		1st Ave. NW / NW 82nd St.
(47.68839, -122.35799) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Crown Hill, WA
King Co.
United States 		1st Ave. NW / NW 81st St.
(47.68767, -122.35797) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Washougal, WA
Clark Co.
United States 		SR 14 / 15th St. (Washougal River Rd.)
(45.57665, -122.35617) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.2591 		Other (At-Grade)
Single-Lane 		2019 Completed Summer 2019 (WSDOT). If needed will be converted in the future to multilane and has built in concrete joint lines in the splitter islands and central island truck apron. ICD estimated from Google Maps linework.
Redding, CA
Shasta Co.
United States 		S Bonnyview Rd. / Bechelli Ln.
(40.53910, -122.35470) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2022 Serves as a primary intersection for a Costco store. https://krcrtv.com/news/local/south-bonnyview-and-bechelli-lane-roadabout-update
Greenwood, WA
King Co.
United States 		N 82nd St. / Dayton Ave. N
(47.68840, -122.35261) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Greenwood, WA
King Co.
United States 		N 83rd St. / Dayton Ave. N
(47.68913, -122.35260) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Federal Way, WA
King Co.
United States 		12th Ave. SW / 12th Pl. SW / SW 340th St.
(47.29677, -122.35142) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.6299 		Other (At-Grade)
Single-Lane 		2013 Inscribed diameter of 76 feet, landscaped central island, yield control on all approaches. No curbing for channelizing the approaches, paint only. Opened November 2013. ICD estimated from Google Maps linework.
Greenwood, WA
King Co.
United States 		Fremont Ave. N / N 83rd St.
(47.68912, -122.34992) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Greenwood, WA
King Co.
United States 		Fremont Ave. N / N 82nd St.
(47.68839, -122.34992) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
San Mateo Park, CA
San Mateo Co.
United States 		Edgewood Rd. / Clark Dr. / Midway Ave.
(37.56598, -122.34956) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands or control.
Seattle, WA
King Co.
United States 		4th Ave. N / N. Prospect St.
(47.62890, -122.34880) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
10.4636 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Linden Ave. N / N. 36th St.
(47.65116, -122.34860) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
35.4002 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Linden Ave. N / N. 42nd St.
(47.65774, -122.34850) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
56.3115 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
White Center, WA
King Co.
United States 		10th Ave. SW / SW 100th St.
(47.51379, -122.34770) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
12.1000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2006 Opened April 2006. Previously controlled by two-way stop ICD estimated from Google Maps linework.
San Mateo Park, CA
San Mateo Co.
United States 		Warren Rd. / Costa Rica Ave.
(37.56965, -122.34751) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on two legs; no control.
Seattle, WA
King Co.
United States 		N 100th St. / Linden Ave. N
(47.70145, -122.34735) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Burlingame, CA
San Mateo Co.
United States 		California Dr. / Bellevue Ave. / Lorton Ave.
(37.58049, -122.34729) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2019 Bus stop in advance of crosswalk on through bypass lane.
Edmonds, WA
Snohomish Co.
United States 		212th St. SW / 84th Ave. W / SW Bowdoin Way
(47.80701, -122.34716) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
113.9049 		Other (At-Grade)
Single-Lane 		2014 Open November 2014. ICD estimated from Google Maps linework.
White Center, WA
King Co.
United States 		9th Ave. SW / SW 100th St.
(47.51379, -122.34640) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
14.5200 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2006 Opened April 2006. Previously controlled by two-way stop Functional Class: Neighborhood Collector ICD estimated from Google Maps linework.
San Mateo Park, CA
San Mateo Co.
United States 		Warren Rd. / Crescent Ave.
(37.57129, -122.34558) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands or control.
Seattle, WA
King Co.
United States 		8th Ave. SW / SW 102nd St.
(47.51201, -122.34505) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2019 https://content.govdelivery.com/accounts/WAKING/bulletins/2723d2f
Seattle, WA
King Co.
United States 		8th Ave. SW / SW 108th St.
(47.50659, -122.34466) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2018 http://whitecenternow.com/2018/10/16/road-work-alert-mini-roundabout-construction-to-start-at-8th-108th/
San Mateo Park, CA
San Mateo Co.
United States 		W Bellevue Ave. / Dorchester Rd.
(37.56727, -122.34429) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands or control.
San Mateo Park, CA
San Mateo Co.
United States 		Clark Dr. / Crescent Ave.
(37.56928, -122.34362) 		Other
Existing 		All-Way Stop
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Federal Way, WA
King Co.
United States 		SW 330th St. / 6th Ave. SW
(47.30622, -122.34230) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
20.2463 		Other (At-Grade)
Single-Lane 		2014 This is a "Compact" urban roundabout with central island landscaping and a truck apron, inscribed diameter is 76 feet. Pedestrian refuge islands on the east-west approaches provide channelization. This and the one at 3rd Ave SW / SW 330th Street were opened in November 2014. ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Interlake Ave. N / N 39th St.
(47.65411, -122.34130) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
14.4811 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.