Roundabouts Database Index

29465 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
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.
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.
Fife, WA Pierce Co. United States	SR 99 (Pacific Hwy. E) / Wapato Way (47.24293, -122.34070)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2021	https://wsdot.wa.gov/projects/sr167/completion/construction
Seattle, WA King Co. United States	Ashworth Ave. N / N 38th St. (47.65269, -122.34020)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 160.1009	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Ashworth Ave. N / N 137th St. (47.72868, -122.33970)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 14.4604	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Conway, WA Skagit Co. United States	SR 534 (Pioneer Hwy) / Fir Island Rd. / Conway Frontage Rd. / Main St. (48.34133, -122.33929)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 56.3641	Other (At-Grade) Single-Lane	2014	Oblong shape. Open July 2014. Replaced two closely spaced stop-controlled intersections. ICD estimated from Google Maps linework.
Federal Way, WA King Co. United States	3rd Ave. SW / SW 330th St. (47.30636, -122.33874)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 17.8167	Other (At-Grade) Single-Lane	2014	This is a "Compact" single-lane roundabout with center island landscaping and a truck apron, inscribed circle diameter is 76 feet. Pedestrian refuge islands on the east-west approaches provide channelization. ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Woodlawn Ave. N / N. 36th St. (47.65051, -122.33870)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 12.8730	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Burlington, WA Skagit Co. United States	SR 11 (Chuckanut Dr.) / I-5 SB Ramps / Josh Wilson Rd. (48.48585, -122.33867)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2010	Right-turn-only lanes on east and west legs. Replaced two T-intersections. September 2010.
Seattle, WA King Co. United States	Densmore Ave. N / N 137th St. (47.72867, -122.33830)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 16.8705	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Redding, CA Shasta Co. United States	Victor Ave. / Marlene Ave. (40.55815, -122.33824)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.7773	Other (At-Grade) Single-Lane	2017	The roundabout is a hybrid with some features of a mini-roundabout but with other features of an urban compact roundabout. ICD estimated from Google Maps linework.
Abbotsford, BC Fraser Valley Canada	Clearbrook Rd. / Marshall Rd. / Trans-Canada Hwy EB Ramps (49.03566, -122.33757)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.4984	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2011	http://www.minnowlake.ca/Roundabouts_in_Canada_2013%20(1).pdf ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Densmore Ave. N / N. 36th St. (47.65051, -122.33750)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 13.6775	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Washougal, WA Clark Co. United States	SR 14 / S 32nd St. (45.57443, -122.33692)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.1284	Other (At-Grade) Unknown	2019	Completed Summer 2019 (WSDOT). ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Wallingford Ave. N / N 137th St. (47.72868, -122.33690)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 12.8537	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Woodlawn Ave. N / Wallingfor Ave. N (47.69778, -122.33650)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 9.6460	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Redding, CA Shasta Co. United States	Victor Ave. / Galaxy Way (40.55114, -122.33645)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.7796	Other (At-Grade) Single-Lane	2017	The roundabout is a hybrid with some features of a mini-roundabout but with other features of an urban compact roundabout. ICD estimated from Google Maps linework.
Burlington, WA Skagit Co. United States	SR 11 (Chuckanut Dr.) / I-5 NB Ramps / Old Hwy 99 (48.48359, -122.33559)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2010	October 2010. Right-turn-only lanes on south and east legs. Merging right-turn-bypass lane on west leg.
Burlington, WA Skagit Co. United States	N Burlington Blvd. / (parking) (48.48060, -122.33544)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2008	October 2008. Entrance to high school.
Seattle, WA King Co. United States	Burke Ave. N / N 35th St. (47.64919, -122.33510)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 9.6550	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Burke Ave. N / N 43rd St. (47.65915, -122.33500)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways	Other (At-Grade) Unknown
Seattle, WA King Co. United States	Burke Ave. N / N 44th St. (47.66031, -122.33500)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 16.8926	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.