Roundabouts Database Index

11398 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
Portland, OR Multnomah United States	NE Cesar E Chavez Blvd. (NE 39th Ave.) / NE Glisan St. (45.52640, -122.62300)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 68.6113	Other (At-Grade) Multilane (2 Lane)		Stop-controlled entries into circle. Bus stop within circulatory roadway. Historical rotary with stop control. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE Holman St. / NE 41st St. (45.56858, -122.62172)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 81.9374	Other (At-Grade) Single-Lane	1988	Completed 10/28/1988. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE 41st Ave. / SE Harrison St. (45.50878, -122.62020)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 80.3506	Other (At-Grade) Single-Lane	1990	Completed 5/30/1990. ICD estimated from Google Maps linework.
Joint Base Lewis-McChord, WA Pierce Co. United States	D St. / South Dr. / Integrity Gate (47.11600, -122.61932)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.3273	Other (At-Grade) Single-Lane	2014	Open July 2014. ICD estimated from Google Maps linework.
Petaluma, CA Sonoma United States	Petaluma Blvd. S / Caulfield Ln. (38.22730, -122.61820)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.3434	Other (At-Grade) Single-Lane	2011	Construction began spring 2011. Functional Class: Arterial ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	SE 43rd Ave. / SE Lincoln St. (45.50799, -122.61810)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 22.5989	Other (At-Grade) Single-Lane	1990	Completed 4/23/1990. ICD estimated from Google Maps linework.
Bremerton, WA Kitsap Co. United States	Wheaton Way / Harkins St. / Manette Bridge (47.57079, -122.61700)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 23.3679	Other (At-Grade) Single-Lane	2011	Previous intersection was four-way with south leg. ICD estimated from Google Maps linework.
Gig Harbor, WA Pierce United States	Borgen Blvd. / SR 16 SB Ramps (47.35868, -122.61610)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.8342	Freeway Ramps (Grade-Separated) Single-Lane	2004	Opened March 2004. ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	SE 45th Ave. / SE Clinton St. (45.50336, -122.61610)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 87.0549	Other (At-Grade) Single-Lane	1990	Completed 4/25/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE 46th Ave. / SE Lincoln St. (45.50802, -122.61510)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 35.1539	Other (At-Grade) Single-Lane	1990	Completed 4/23/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE 47th Ave. / NE Thompson St. (45.53903, -122.61496)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 18.4038	Other (At-Grade) Single-Lane	1990	Completed 9/25/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE 47th Ave. / NE Brazee St. (45.54056, -122.61496)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 34.2970	Other (At-Grade) Single-Lane	1990	Completed 9/25/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	SE 47th Ave. / SE Clinton St. (45.50336, -122.61400)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 32.6456	Other (At-Grade) Single-Lane	1990	Completed 4/25/1990. ICD estimated from Google Maps linework.
Anacortes, WA Skagit United States	Commercial Ave. / SR20 Spur (48.49332, -122.61280)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 34.8256	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Gig Harbor, WA Pierce United States	Borgen Blvd. / SR 16 NB Ramps / Burnham Dr. (47.35843, -122.61260)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 47.7339	Freeway Ramps (Grade-Separated) Multilane (2 Lane)	2001	Oval shaped central island. 6 legged configuration includes a on-ramp (outbound)leg. Central island is used as a roadway storm detention pond. Completed Summer/Fall 2001. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Poulsbo, WA Kitsap Co. United States	NE Lincoln Rd / Noll Rd. NE / Gala Way NE (47.75120, -122.61191)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2012	Open September 2012. Replaced two offset T-intersections.
Petaluma, CA Sonoma United States	McDowell Blvd. / Baywood Dr. (38.24036, -122.61010)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.4513	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	SE 51st Ave. / SE Lincoln St. (45.50803, -122.61000)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 15.0659	Other (At-Grade) Single-Lane	1990	Completed 4/23/1990. ICD estimated from Google Maps linework.
Anacortes, WA Skagit Co. United States	R Ave. / 22nd St. (48.50423, -122.60992)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.6011	Other (At-Grade) Single-Lane	2013	Open December 2013. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE Clackamas St. / NE 53rd Ave. (45.53300, -122.60880)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 30.1185	Other (At-Grade) Single-Lane	1988	Completed 11/3/1988. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE 53rd Ave. / NE Hassalo St. (45.53048, -122.60880)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 35.1398	Other (At-Grade) Single-Lane	1988	Completed 11/3/1988. ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	SE 55th Ave. (N) / SE Lincoln St. (45.50806, -122.60650)	Neighborhood Traffic Circle Existing	Unknown None	3 Approaches 0 Driveways 99.6025	Other (At-Grade) Single-Lane	1990	Completed 5/14/1990. ICD estimated from Google Maps linework.
Gig Harbor, WA Pierce United States	Borgen Blvd. / 51st (47.35959, -122.60640)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	4 Approaches 0 Driveways 35.5974	Other (At-Grade) Single-Lane	2002	In-pavement flashers in use on all crosswalks. Striped-out apron for future conversion to multilane. Opened September 2002. Functional Class: Arterial ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	SE 55th Ave. (S) / SE Lincoln St. (45.50804, -122.60610)	Neighborhood Traffic Circle Existing	Unknown None	3 Approaches 0 Driveways 29.2949	Other (At-Grade) Single-Lane	1990	Completed 5/14/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	SE 56th Ave. / SE Woodward St. (45.50140, -122.60500)	Neighborhood Traffic Circle Existing	Unknown None	3 Approaches 0 Driveways 43.5289	Other (At-Grade) Single-Lane	1988	Completed 10/27/1998. ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	SE 58th Ave. (S) / SE Lincoln St. (45.50805, -122.60380)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 104.6245	Other (At-Grade) Single-Lane	1990	Completed 5/8/1990. ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	SE 58th Ave. / SE Woodward St. (45.50140, -122.60310)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	1988	Completed 10/27/1998.
Langley, BC Greater Vancouver Canada	Glover Rd. / Labonte Rd. / 76a Ave. (49.14268, -122.60283)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.5025	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Gig Harbor, WA Pierce United States	Borgen Blvd. / Harbor Hill Dr. (47.35993, -122.60160)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.8333	Other (At-Grade) Single-Lane	2007	Opened March 2007. ICD estimated from Google Maps linework.
Gig Harbor, WA Thurston United States	Harbor Hill Dr. / Costco Entrance (47.35889, -122.60100)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 101.1304	Other (At-Grade) Single-Lane	2008	January 2008. ICD estimated from Google Maps linework.
Gig Harbor, WA Pierce Co. United States	Borgen Blvd. / Olympus Way (47.35991, -122.59782)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 33.1701	Other (At-Grade) Multilane (2 Lane)	2013	Year Completed estimated (2013-2014). ICD estimated from Google Maps linework.
Ferndale, WA Whatcom United States	Vista Dr. / Malloy Ave. / Ferndale Terr. (48.85251, -122.59620)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.3640	Other (At-Grade) Single-Lane	2007	Opened September 2007. ICD estimated from Google Maps linework.
Petaluma, CA Sonoma United States	Casa Grande Rd. / Ely Blvd. (38.24348, -122.59580)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.8924	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Gig Harbor, WA Pierce United States	Borgen Blvd. / Peacock Hill Ave. NW (47.35992, -122.58930)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.6979	Other (At-Grade) Single-Lane	2006	Opened January 2006. ICD estimated from Google Maps linework.
Ferndale, WA Whatcom United States	I-5 SB Ramps / 2nd St. / Portal Way (48.85686, -122.58840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.8616	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Ferndale, WA Whatcom Co. United States	Portal Way / I-5 NB Ramps (48.85836, -122.58613)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.3591	Freeway Ramps (Grade-Separated) Mini-roundabout	2019	Year Completed estimated (2018-2019). https://myferndalenews.com/mayor-second-roundabout-portal-way-5-scheduled-summer_56179/ ICD estimated from Google Maps linework.
Oregon City, OR Clackamas United States	Washington St. / Clackamas River Dr. (45.37355, -122.58530)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.1107	Other (At-Grade) Single-Lane	2012	Right-turn bypass lane on eastbound approach. Constructed as part of OR 213 jughandle project. ICD estimated from Google Maps linework.
Gig Harbor, WA Pierce Co. United States	Point Fosdick Dr. NW / 34th Ave. NW / Stone Dr. NW (47.27442, -122.58412)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.7928	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Joint Base Lewis-McChord, WA Pierce Co. United States	Colorado Ave. / Garcia Blvd. (47.09688, -122.58387)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.4657	Other (At-Grade) Single-Lane	2015	Open January 2015. ICD estimated from Google Maps linework.
Anacortes, WA Skagit Co. United States	SR 20 / Miller Rd. / Gibralter Rd. (48.45438, -122.58269)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 42.7733	Other (At-Grade) Multilane (2 Lane)	2018	ICD estimated from Google Maps linework.
Anacortes, WA Skagit Co. United States	SR 20 / SR 20 Spur (48.46352, -122.58156)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 53.8530	Other (At-Grade) Multilane (2 Lane)	2018	ICD estimated from Google Maps linework.
Langley, BC Greater Vancouver Canada	232 St. / 72 Ave. / Trans Canada 1 WB On-ramp (49.13829, -122.58135)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 37.5059	Freeway Ramps (Grade-Separated) Single-Lane	2013	Roundabout was part of a project to build an overpass at a rail crossing. That project was completed in 2014, but the roundabout was in operation in 2013: https://www.portvancouver.com/wp-content/uploads/2015/03/232nd-st-construction-notice-december-2013.pdf ICD estimated from Google Maps linework.
Langley Township, BC Greater Vancouver Canada	232 St. / 56 Ave. (49.10396, -122.58115)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.8776	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2013). ICD estimated from Google Maps linework.
Gig Harbor, WA Pierce United States	Point Fosdick Dr. NW / NW 36th St. (47.29077, -122.57790)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.3530	Other (At-Grade) Single-Lane	2005	Opened September 2005. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE Fremont Dr. / NE Duddleson St. (45.54667, -122.57574)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 33.4569	Other (At-Grade) Single-Lane	1986	Completed 12/2/1986. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE Fremont Dr. / NE Dyer St. (45.54603, -122.57509)	Neighborhood Traffic Circle Existing	Unknown None	3 Approaches 0 Driveways 29.2751	Other (At-Grade) Single-Lane	1986	Completed 12/2/1986. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE Fremont Dr. / NE 86th Ave. (45.54567, -122.57478)	Neighborhood Traffic Circle Existing	Unknown None	3 Approaches 0 Driveways 25.0931	Other (At-Grade) Single-Lane	1986	Completed 12/2/1986. ICD estimated from Google Maps linework.
University Place, WA Pierce United States	Grandview Dr. / 56th St. W (47.20565, -122.56890)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.3417	Other (At-Grade) Single-Lane	2000	Opened September 2000. ICD estimated from Google Maps linework.
University Place, WA Pierce United States	Grandview Dr. / 62nd Ct. W / Park Entrance (47.20033, -122.56890)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.7785	Other (At-Grade) Single-Lane	2000	Opened September 2000. ICD estimated from Google Maps linework.
University Place, WA Pierce United States	Grandview Dr. / Bristonwood Dr. / 48th St. W (47.21334, -122.56880)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9607	Other (At-Grade) Single-Lane	2000	Opened September 2000. ICD estimated from Google Maps linework.
University Place, WA Pierce United States	Grandview Dr. / Cirque Dr. (47.21093, -122.56880)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.1506	Other (At-Grade) Single-Lane	2000	Opened September 2000. ICD estimated from Google Maps linework.
Hidden Valley Lake, CA Lake Co. United States	SR 29 / Hartmann Rd. (38.79274, -122.56556)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.6823	Other (At-Grade) Single-Lane	2019	ICD estimated from Google Maps linework.
University Place, WA Pierce United States	64th St W / Park Entrance (47.19891, -122.56530)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 28.4022	Other (At-Grade) Single-Lane	2004	Completed before July 2004. ICD estimated from Google Maps linework.
Clackamas, OR Clackamas United States	Monterey Ave. / Stevens Rd. (45.43780, -122.56390)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.8738	Other (At-Grade) Single-Lane	2006	Fourth leg serves New Hope Community Church parking lot. ICD estimated from Google Maps linework.
Joint Base Lewis-McChord, WA Pierce Co. United States	Portland Ave. SW / Boundary St. SW / Camp Murray Gate (47.12106, -122.56300)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.6312	Other (At-Grade) Single-Lane	2012	Open October 2012. ICD estimated from Google Maps linework.
Vancouver, WA Clark Co. United States	NE 18th St. / I-205 SB On Ramp (45.63554, -122.56193)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 33.4039	Freeway Ramps (Grade-Separated) Multilane (2 Lane)	2016	ICD estimated from Google Maps linework.
Portland, OR Multnomah United States	NE Mt. Hood Ave. / Frontage Rd. / PDX Airport Economy Blue Lot / PDX Airport Economy Red Lot (45.57770, -122.55950)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.7822	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
University Place, WA Pierce United States	Grandview Dr. / Olympic Blvd. (47.22188, -122.55790)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1454	Other (At-Grade) Single-Lane	1997	Curtis High School and Curtis Junior High School on NE corner of roundabout. Opened August 1997. Functional Class: Arterial ICD estimated from Google Maps linework.
Clackamas, OR Clackamas United States	Monterey Ave. / Causey Ave. / William Otty Rd. (45.44020, -122.55510)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.7102	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Ferndale, WA Whatcom Co. United States	Slater Rd. / I-5 SB Ramps (48.81707, -122.55050)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.7384	Freeway Ramps (Grade-Separated) Mini-roundabout	2014	Includes a yield-controlled right-turn bypass lane. Open November 2014. ICD estimated from Google Maps linework.
Ferndale, WA Whatcom Co. United States	Slater Rd. / I-5 NB Ramps (48.81737, -122.54604)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.5247	Freeway Ramps (Grade-Separated) Mini-roundabout	2014	Includes yield-controlled right-turn bypass lanes. Open November 2014. ICD estimated from Google Maps linework.
Ferndale, WA Whatcom Co. United States	Slater Rd. / Pacific Hwy. (48.81718, -122.54435)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.8741	Other (At-Grade) Mini-roundabout	2014	Open November 2014. ICD estimated from Google Maps linework.
Joint Base Lewis-McChord, WA Pierce Co. United States	Murray Rd. SW / 150th St. SW (47.12144, -122.54239)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 65.8268	Other (At-Grade) Multilane (2 Lane)	2012	Open September 2012. ICD estimated from Google Maps linework.
Maple Ridge, BC Greater Vancouver Canada	Jackson Rd. / 102 Ave. (49.18779, -122.54119)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.5401	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2012-2013). ICD estimated from Google Maps linework.
University Place, WA Pierce United States	40th St. W / Drexler Dr. W (47.22084, -122.53430)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 31.6351	Other (At-Grade) Single-Lane	2006	Completed June 2006. ICD estimated from Google Maps linework.
San Rafael, CA Marin Co. United States	Civic Center Dr. / Peter Behr Dr. (38.00051, -122.53422)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.8221	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Vancouver, WA Clark Co. United States	NE 39th St. / NE 137th Ave. / NE 138th Ave. (45.65025, -122.53209)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.4044	Other (At-Grade) Multilane (2 Lane)	2013	ICD estimated from Google Maps linework.
Vancouver, WA Clark Co. United States	NE 44th St. / NE 137th Ave. (45.65377, -122.53207)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.8796	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Vancouver, WA Clark United States	NE 137th Ave. / NE 49th St. (45.65733, -122.53190)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 40.0691	Other (At-Grade) Multilane (2 Lane)	2008	Opened January 2008. ICD estimated from Google Maps linework.
Bellingham, WA Whatcom United States	Mitchell Way / Bellingham Airport Access Rd. (48.79757, -122.53080)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.4692	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Vancouver, WA Clark Co. United States	NE 32nd Cir. / NE 138th Ave. (45.64517, -122.53057)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0778	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Bainbridge Island, WA Kitsap United States	High School Rd. / Madison Ave. (47.63579, -122.52100)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.9484	Other (At-Grade) Single-Lane	2000	Greatly reduced congestion. Initial public opposition has turned to full support. Project located next to 3 schools. Separated sidewalks, timed yellow flashing lights during school crossing. Crossing guards. Near library and shopping center. Opened October 2000. ICD estimated from Google Maps linework.
Swinomish Tribal Community, WA Skagit United States	SR 20 / Padilla Heights Rd. (48.45519, -122.51940)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.2280	Other (At-Grade) Single-Lane	2002	The ground breaking ceremony was held October 2002. The client is the Swinomish Tribe. Opened October 2002. Functional Class: Local ICD estimated from Google Maps linework.
Swinomish Tribal Community, WA Skagit United States	Knudsen Ln. / Casino Dr. (48.45635, -122.51910)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.2668	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2012-2013). ICD estimated from Google Maps linework.
University Place, WA Pierce United States	Cirque Dr. W / Alameda Ave. W / 56th St. W (47.20639, -122.51600)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 54.3624	Other (At-Grade) Single-Lane	2002	Completed December 2002. ICD estimated from Google Maps linework.
Lakewood, WA Pierce United States	Main St. SW / 5th Ave. SW (47.16198, -122.51570)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.4220	Other (At-Grade) Single-Lane	2002	Completed June 2002. ICD estimated from Google Maps linework.
Tacoma, WA Pierce Co. United States	N Pearl St. / Five Mile Dr. / N Waterfront Dr. / Ferry Crossing Landing Rd / Park Ave. (47.30193, -122.51556)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 32.3966	Other (At-Grade) Single-Lane	2018	https://www.thenewstribune.com/news/local/article196233104.html ICD estimated from Google Maps linework.
Tacoma, WA Pierce Co. United States	(unknown) / (unknown) (47.30214, -122.51434)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 27.5370	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2018-2019). ICD estimated from Google Maps linework.
(unincorporated), OR Clackamas United States	SE 147th Ave. / Oregon Trail Dr. / Hines Dr. / Sieben Pkwy. (45.42280, -122.51240)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 34.3688	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Happy Valley, OR Clackamas Co. United States	SE 145th Ave. / SE 147th Ave. / Scouters Mountain Rd. (45.44111, -122.51231)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 36.0336	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Ruston, WA Pierce Co. United States	N Ruston Way / Baltimore St. / N 51st St. / Yacht Club Rd. (47.29908, -122.50894)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 101.2449	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Ruston, WA Pierce Co. United States	N Ruston Way / Grand Ave. (47.29725, -122.50488)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 79.3788	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Bellingham, WA Whatcom United States	Northwest Ave. / I-5 NB Ramp (48.78500, -122.50420)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.4117	Freeway Ramps (Grade-Separated) Single-Lane	2010	RT bypass lane on southbound approach. ICD estimated from Google Maps linework.
Ruston, WA Pierce Co. United States	Main St. / Bay View Corridor (47.29744, -122.50297)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1095	Other (At-Grade) Single-Lane	2014	Open September 2014. ICD estimated from Google Maps linework.
Bellingham, WA Whatcom Co. United States	Northwest Blvd. / McLeod Rd. (48.78262, -122.50297)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 56.6614	Other (At-Grade) Single-Lane	2013	Open June 2013. ICD estimated from Google Maps linework.
(unincorporated), CA Sonoma United States	Arnold Dr. / Agua Caliente Rd. (38.32045, -122.50220)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.8586	Other (At-Grade) Single-Lane	2013	Completed 2013. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Clackamas, OR Clackamas United States	SE 157th Ave. / SE 162nd Ave. (45.42429, -122.49770)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.8826	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Tacoma, WA Thurston United States	N. 37th St. / Stevens St. / Mason Ave. (47.28197, -122.49590)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.8760	Other (At-Grade) Single-Lane	2007	One leg skewed at ~60 degrees. Opened April 2007. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Bellingham, WA Whatcom Co. United States	Cordata Pkwy. / Stuart Rd. (48.79931, -122.49572)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.4016	Other (At-Grade) Multilane (2 Lane)	2019	https://www.cob.org/gov/projects/Pages/Cordata%20Stuart%20Roundabout.aspx. ICD estimated from Google Maps linework.
Sausalito, CA Marin United States	Conzelman Rd. / McCullough Rd. (37.83361, -122.49400)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.2415	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Tacoma, WA Pierce United States	S Tyler St. / S 66th St. (47.19746, -122.49280)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 25.9685	Other (At-Grade) Single-Lane	2005	Opened July 2005. Fatal crash August 12. 2006. 11861-05. ICD estimated from Google Maps linework.
Bellingham, WA Whatcom United States	Cordata Pkwy. / Kellogg Rd. (48.79511, -122.49170)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.3384	Other (At-Grade) Multilane (2 Lane)	2003	Primary access to Whatcom Community College. Functional Class: Arterial ICD estimated from Google Maps linework.
Bellingham, WA Whatcom United States	Cordata Pkwy. / Westerly Dr. (48.79198, -122.49140)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.4068	Other (At-Grade) Multilane (2 Lane)	2005	http://cob.org/documents/pw/curconst/ES-0237.pdf Functional Class: Arterial ICD estimated from Google Maps linework.
La Conner, WA Skagit United States	LaConner-Whitney Rd. / Chilberg Rd. / Morris Sr. (48.39234, -122.48660)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.5504	Other (At-Grade) Single-Lane	2003	Roundabout replaces a Y intersection. The center island is under private ownership and contains an exisitng granite monument. Opened September 2003. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Lynden, WA Whatcom United States	SR 539 / Ten Mile Rd. (48.86968, -122.48580)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.3503	Other (At-Grade) Multilane (2 Lane)	2009	ICD estimated from Google Maps linework.
Lynden, WA Whatcom United States	SR 539 / River Rd. (48.92280, -122.48565)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.0858	Other (At-Grade) Multilane (2 Lane)	2009	ICD estimated from Google Maps linework.
Lynden, WA Whatcom United States	SR 539 / Pole Rd. (48.89152, -122.48560)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.1153	Other (At-Grade) Multilane (2 Lane)	2009	ICD estimated from Google Maps linework.
Lynden, WA Whatcom United States	SR 539 / Wiser Lake Rd. (48.90677, -122.48560)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.1009	Other (At-Grade) Multilane (2 Lane)	2009	ICD estimated from Google Maps linework.
Clackamas, OR Clackamas United States	SE 172nd Ave. / SE Creekwood Rd. (45.41880, -122.48550)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.5928	Other (At-Grade) Multilane (2 Lane)	2009	Creekwood Rd. is new roadway; SE 172nd Avenue is existing. ICD estimated from Google Maps linework.
Bellingham, WA Whatcom Co. United States	N State St. / Wharf St. / N Forest St. / Boulevard (48.74361, -122.48473)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.8297	Other (At-Grade) Single-Lane	2013	Open October 2013. ICD estimated from Google Maps linework.