Roundabouts Database

29411 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
Seattle, WA
King Co.
United States 		Sunnyside Ave. N / N 43rd St.
(47.65912, -122.33020) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2006
Seattle, WA
King Co.
United States 		Corliss Ave. N / N 39th St.
(47.65429, -122.33140) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
12.8720 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Corliss Ave. N / N 43rd St.
(47.65912, -122.33140) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Seattle, WA
King Co.
United States 		Corliss Ave. N / N 42nd St.
(47.65795, -122.33140) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
13.6756 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Corliss Ave. N / N 37th St.
(47.65195, -122.33150) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
16.8953 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Burlington, WA
Skagit Co.
United States 		Marketplace Dr. / S Walnut St.
(48.44859, -122.33169) 		Roundabout
Existing 		Other
None 		4 Approaches
0 Driveways
15.0516 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2015 Year Completed estimated (2015-2016). Two approaches have stop signs at the crosswalk and yield lines (without yield signs) at the entrance (streetview), and no control at the crosswalks on the exit side. ICD estimated from Google Maps linework.
Burlington, WA
Skagit Co.
United States 		E George Hopper Rd. / S Walnut St.
(48.45200, -122.33174) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
20.5955 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2015 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Bagley Ave. N / N 39th St.
(47.65431, -122.33260) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
12.8720 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Bagley Ave. N / N 42nd St.
(47.65796, -122.33260) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Seattle, WA
King Co.
United States 		Bagley Ave. N / N 44th St.
(47.66029, -122.33260) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Seattle, WA
King Co.
United States 		Bagley Ave. N / N 43rd St.
(47.65912, -122.33260) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Seattle, WA
King Co.
United States 		Meridian Ave. N / N 44th St.
(47.66030, -122.33370) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
20.9147 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Meridian Ave. N / N 43rd St.
(47.65914, -122.33380) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Seattle, WA
King Co.
United States 		Meridian Ave. N / N 42nd St.
(47.65797, -122.33380) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Seattle, WA
King Co.
United States 		Meridian Ave. N / N 37th St.
(47.65196, -122.33386) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
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.
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.
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.
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.
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.
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.
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.
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 		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.
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.
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.
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.
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 		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.
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.
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.
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.
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.
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 		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.
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.
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
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.
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/
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
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.
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.
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.
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.
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
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.
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.
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.
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 		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.
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.
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
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 		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
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
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
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.
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
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
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
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
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.
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.
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
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
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
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
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. / 11th Ave. NW
(47.68875, -122.37041) 		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. / 12th Ave. NW
(47.68875, -122.37144) 		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. / 14th Ave. NW
(47.68875, -122.37413) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		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 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
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
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.
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.
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.
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
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. / 18th Ave. NW
(47.68505, -122.38004) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
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
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).
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.
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.
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.
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
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. / 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
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.
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. / 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.
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
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.
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