Roundabouts Database Index

11210 Results

Search by location, intersection, and comments with the Quick Search below. You can search all other attributes by clicking Advanced Search. Sort results by clicking the headers of any column. Click the Intersection name for a details and aerial view. Search results pages can be bookmarked. Results can be exported to KML for viewing in Google Earth.

City, State County Country	Intersection (Lat, Lng)	Type Status	Control Type / Other Control Type	Approaches / Driveways / ICD (m)	Functional Class / LaneType	Year Completed	Comments
Burnaby, BC Greater Vancouver Canada	Gaglardi Way / University Dr. W (49.27628, -122.93078)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.8429	Other Single-Lane	2014	Right-turn bypass lane on southeast leg. ICD estimated from Google Maps linework.
Hillsboro, OR Washington United States	Brookwood Ave. / Alexander St. (45.49736, -122.93050)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6949	Other Single-Lane	2009	ICD estimated from Google Maps linework.
Central Point, OR Jackson Co. United States	Taylor Rd. / Silver Creek Dr. (42.37467, -122.92876)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.0579	Other Single-Lane	2004	Year Completed estimated (2003-2005). ICD estimated from Google Maps linework.
Tumwater, WA Thurston United States	Littlerock Rd. SW / Odegard Rd. SW (46.98985, -122.92650)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 30.9580	Other Single-Lane	2010	June 2010. ICD estimated from Google Maps linework.
Springfield, OR Lane United States	58th St. / Thurston Rd. (44.05320, -122.92640)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.7507	Other Single-Lane	2001	ICD estimated from Google Maps linework.
Lakeport, CA Lake Co. United States	Todd Rd. / Parallel Dr. (39.03226, -122.92521)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.5433	Other Single-Lane	1998	Year Completed estimated (1993-2003). ICD estimated from Google Maps linework.
Tumwater, WA Thurston United States	Littlerock Rd. SW / Kingswood Dr. SW (46.99435, -122.92190)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 37.4723	Other Single-Lane	2010	September 2010. ICD estimated from Google Maps linework.
Upper Lake, CA Lake Co. United States	SR 20 / SR 29 (39.16333, -122.92095)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 36.1148	Other Single-Lane	2015	ICD estimated from Google Maps linework.
(unincorporated), OR Washington United States	Scholls Ferry Rd. / River Rd. (45.42222, -122.91619)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.2667	Other Multilane (2 Lane)	2012	Rural location with high-speed approaching roadways; realignment of each approach reduces speed. ICD estimated from Google Maps linework.
New Westminster, BC Greater Vancouver Regional District Canada	10th St. / Carnarvon St. (49.20056, -122.91550)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 17.1686	Other Single-Lane	2002	ICD estimated from Google Maps linework.
Hillsboro, OR Washington Co. United States	NE Butler St. / NE 65th Ave. (45.53838, -122.91368)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.1349	Other Multilane (2 Lane)	2014	ICD estimated from Google Maps linework.
Olympia, WA Thurston United States	Olympic Way NW / Harrison Ave. NW / W Bay Dr. NW (47.04582, -122.91330)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	3 Approaches 0 Driveways 34.9947	Other Multilane (2 Lane)	2004	Opened March 2004. Functional Class: Arterial ICD estimated from Google Maps linework.
Tumwater, WA Thurston United States	Tumwater Blvd. / New Market St. (46.97971, -122.91320)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.7052	Other Multilane (2 Lane)	2006	Functional Class: Arterial ICD estimated from Google Maps linework.
Olympia, WA Thurston United States	Olympic Way NW / 4th Ave. W / 5th Ave. W (47.04422, -122.91200)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	4 Approaches 0 Driveways 38.2512	Other Multilane (2 Lane)	2004	Opened March 2004. Functional Class: Arterial ICD estimated from Google Maps linework.
Burnaby, BC Greater Vancouver Regional District Canada	East Campus Rd. / University Dr. E (49.27628, -122.90450)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.0000	Other Single-Lane	2003	On the Simon Fraser University campus. Year Completed estimated (2002-2004).
Olympia, WA Thurston United States	Capitol Way N / Market St. NE / Corky Ave. NW / Columbia St. NW (47.05005, -122.90250)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 25.2268	Other Single-Lane	1995	June 1995. ICD estimated from Google Maps linework.
Delta, BC Metro Vancouver Canada	82nd Ave. / 116th St. (49.15220, -122.90150)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.0911	Other Unknown	2005	ICD estimated from Google Maps linework.
Olympia, WA Thurston United States	Jefferson St SE / 14th Ave. SE (47.03551, -122.89590)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 35.8155	Other Multilane (2 Lane)	2010	October 2010. ICD estimated from Google Maps linework.
Olympia, WA Thurston United States	14th Ave. SE / E Bay Dr. / Henderson Blvd. SE (47.02971, -122.89140)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 33.3772	Other Single-Lane	2005	Opened July 2005. Southbound right turn bypass lane. ICD estimated from Google Maps linework.
Medford, OR Jackson Co. United States	N Cottage St. / Ohio St. (42.34260, -122.88285)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.1933	Other Single-Lane	2012	Year Completed estimated (2011-2012). West leg religned to southwest 2016-2017. ICD estimated from Google Maps linework.
Kelso, WA Cowlitz Co. United States	SR 432 / Old Hwy 99 / I-5 NB Ramps / Kelso Dr. (46.10491, -122.87586)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Freeway Ramps Single-Lane	2015	Open August 2015. Elliptical shape. ICD = approximately 110 ft x 100 ft.
Olympia, WA Thurston United States	Yelm Hwy SE / Brassfield Rd. SE (47.00367, -122.87310)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 30.1355	Other Multilane (2 Lane)	2011	May 2011. ICD estimated from Google Maps linework.
Nice, CA Lake Co. United States	SR 20 / Pyle Rd. (39.13028, -122.87111)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.7641	Other Single-Lane	2013	ICD estimated from Google Maps linework.
Healdsburg, CA Sonoma Co. United States	Healdsburg Ave. / Mill St. / Vine St. (38.60833, -122.87009)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 36.3981	Other Single-Lane	2018	At-grade railroad crossing through central island. ICD estimated from Google Maps linework.
Olympia, WA Thurston United States	Yelm Hwy SE / Boulevard Rd. SE (47.00397, -122.86540)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 35.8367	Other Multilane (2 Lane)	2011	May 2011. ICD estimated from Google Maps linework.
Olympia, WA Thurston United States	Boulevard Rd. SE / Log Cabin Rd. SE (47.01433, -122.86520)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.0870	Other Multilane (2 Lane)	2009	Opened November 2009. Left-turn only lanes on north and south legs with spiralling. ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Boulevard Rd. / Morse-Merryman Rd. SE (47.01817, -122.86518)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 38.2699	Other Single-Lane	2018	ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	Boulevard Rd. SE / 22nd Ave. (47.02903, -122.86477)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 97.6905	Other Single-Lane	2014	Right-turn-only lane on west leg. Elliptical shape. Open October 2014. ICD estimated from Google Maps linework.
Sherwood, OR Washington United States	Meinecke Pkwy. / Cedar Brook Way (45.36180, -122.85870)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.0842	Other Single-Lane	2003	ICD estimated from Google Maps linework.
Aloha, OR Washington Co. United States	SW 175th St. / SW Kemmer Rd. (45.45121, -122.85724)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.3785	Other Single-Lane	2018	ICD estimated from Google Maps linework.
Sherwood, OR Washington United States	SW Meinecke Pkwy / SW Dewey Dr. (45.35897, -122.85650)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.8900	Other Single-Lane	2003	ICD estimated from Google Maps linework.
Coquitlam, BC Greater Vancouver Canada	Woolridge St. / (parking lot) (49.23188, -122.85288)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.8561	Other Single-Lane	2012	Year Completed estimated (2011-2012). ICD estimated from Google Maps linework.
Medford, OR Jackson United States	Highland Dr. / Siskiyou Blvd. (42.32109, -122.84990)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.6735	Other Single-Lane	2006	ICD estimated from Google Maps linework.
Olympia, WA Thurston United States	18th Ave. SE / Hoffman Rd. SE / Ontario St. SE (47.03250, -122.84959)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8175	Other Single-Lane	2010	Opened October 2010. ICD estimated from Google Maps linework.
Tigard, OR Washington Co. United States	SW Bull Mountain Rd. / SW River Terrace Blvd. (45.41486, -122.84922)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.7271	Other Single-Lane	2018	ICD estimated from Google Maps linework.
Olympia, WA Thurston United States	18th Ave. SE / Fones Rd. SE (47.03248, -122.84690)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 36.6316	Other Single-Lane	2010	October 2010. ICD estimated from Google Maps linework.
Tigard, OR Washington United States	SW Barrows Rd. / SW Roshak Rd. / (parking lot) (45.42692, -122.84486)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.4989	Other Single-Lane	2008	ICD estimated from Google Maps linework.
Port Moody, BC Greater Vancouver Canada	David Ave. / Hertage Mountain Blvd. / (school access) (49.29850, -122.84327)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.5960	Other Single-Lane	2003	http://www.minnowlake.ca/Roundabouts_in_Canada_2013%20(1).pdf ICD estimated from Google Maps linework.
Beaverton, OR Washington United States	SW Teal Blvd. / SW 155th Ave. / SW Nutcracker Ct. (45.44060, -122.83760)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 37.7099	Other Single-Lane		Characteristics of a roundabout, but yield signs replaced with stop signs in 1998. ICD estimated from Google Maps linework.
Sherwood, OR Washington United States	Langer Farms Pkwy. / Century Dr. (45.36454, -122.83630)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.3477	Other Multilane (2 Lane)	2011	Opened November 2011 ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	Pacific Ave. / Golf Club Rd. / Lacey Blvd. (47.03786, -122.82860)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 61.8604	Other Multilane (2 Lane)	2003	Completed July 22, 2003. Functional Class: Arterial ICD estimated from Google Maps linework.
Sherwood, OR Washington United States	SW Oregon St. / SW Murdock Rd. (45.36060, -122.82520)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 49.5120	Other Single-Lane	2002	Completed November 2002. ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	College St. / 45th Ave. (47.00710, -122.82310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.0923	Other Multilane (2 Lane)	2002	Completed November 6, 2002. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	Rainier Rd. SE / SE Balustrade Blvd. (46.98697, -122.82220)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 38.2923	Other Single-Lane	2005	September 2005. Horizon Pointe subdivision. ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Canada	20 Ave. / Rotary Way / (parking lot) (49.03845, -122.81781)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9690	Other Single-Lane	2006	ICD estimated from Google Maps linework.
Windsor, CA Sonoma Co. United States	Old Redwood Hwy / Windsor Rd (38.55271, -122.81661)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7562	Other Single-Lane	2016	ICD estimated from Google Maps linework.
Windsor, CA Sonoma Co. United States	Old Redwood Hwy / Market St (38.54956, -122.81353)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.5598	Other Single-Lane	2015	ICD estimated from Google Maps linework.
Beaverton, OR Washington United States	SW Hart Rd. / Sorrento Rd. / Juniper Terr. (45.46680, -122.80880)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1283	Other Single-Lane		Functional Class: Collector. Pedestrian ramps into circulatory roadway. ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	Pacific Ave. / Lacey Blvd. / Lacey St. / Homann Dr. (47.03677, -122.80630)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 53.7220	Other Multilane (2 Lane)	2003	Completed September 16, 2003. Functional Class: Arterial ICD estimated from Google Maps linework.
Port Townsend, WA Jefferson Co. United States	Discovery Rd. / Rainier St. / Howard St. (48.10787, -122.80624)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.4820	Other Single-Lane	2017	Two-way separated bike path along east side. ICD estimated from Google Maps linework.
Pemberton, BC Pemberton Valley Canada	Portage Rd. / Aspen Blvd. (50.32201, -122.80508)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signal/Beacon	3 Approaches 0 Driveways 35.0000	Other Single-Lane
Port Townsend, WA Jefferson United States	SR 20 (Sims Way) / Howard St. (48.10260, -122.80500)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 35.0931	Other Single-Lane	2010	April 2010. ICD estimated from Google Maps linework.
Wilsonville, OR Clackamas United States	SW Grahams Ferry Rd. / SW Barber St. (45.31273, -122.80170)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 26.0368	Other Single-Lane	2014	ICD estimated from Google Maps linework.
Port Townsend, WA Jefferson United States	SR 20 (Sims Way) / Thomas St. (48.10328, -122.79900)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 35.0927	Other Single-Lane	2010	July 2010. ICD estimated from Google Maps linework.
Wilsonville, OR Clackamas Co. United States	SW Villebois Dr. / SW Costa Cir. (45.31264, -122.79111)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.5145	Other Single-Lane	2014	Year Completed estimated (2014-2015). ICD estimated from Google Maps linework.
Wilsonville, OR Clackamas United States	SW Barber St. / Costa Cir. / 110th Ave. (45.30843, -122.79090)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1580	Other Single-Lane	2007	ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Canada	156 St. / 82 Ave. (49.15186, -122.79010)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.0913	Other Single-Lane	2016	ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Canada	108 Ave. / 156 St. (49.19885, -122.78978)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.0000	Other Single-Lane	2016	Year Completed estimated (2015-2016).
Wilsonville, OR Clackamas United States	SW Boeckman Rd. / Tooze Rd. (45.31616, -122.78790)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.3126	Other Single-Lane	2008	ICD estimated from Google Maps linework.
Wilsonville, OR Clackamas United States	SW Barber St. / Brown Rd. (45.30865, -122.78620)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.3179	Other Single-Lane	2007	ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	Britton Pkwy. NE / Gateway Blvd. (47.06858, -122.78590)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 42.3012	Other Multilane (2 Lane)	2007	Opened September 2007. ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Canada	108 Ave. / 158 St. / 157A St. (49.19886, -122.78424)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.0000	Other Single-Lane	2006	Year Completed estimated (2006-2007).
Olympia, WA Thurston Co. United States	Marvin Rd. NE / 41st Ave. NE (47.09046, -122.78075)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 13.0104	Other Single-Lane	2014	ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	Marvin Rd. / Hawks Prairie Rd. (47.08312, -122.78070)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.6509	Other Single-Lane	2002	Constructed September 14, 2002. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Wilsonville, OR Clackamas Co. United States	SW Boeckman Rd. / SW Kinsman Rd. (45.31738, -122.77993)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 41.1515	Other Single-Lane	2017	ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Canada	160 St. / 82 Ave. (49.15184, -122.77886)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 17.1855	Other Single-Lane	2014	ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Regional District Canada	King George Hwy / 14th St. (Ave.?) (49.02746, -122.77110)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.7585	Other Single-Lane	2007	http://www.icbc.com/road_safety/road_improve_pu/surrey.asp ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	Marvin Rd. / Britton Pkwy. (47.06905, -122.77090)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.3682	Other Multilane (2 Lane)	2000	Completed September 14, 2000. Functional Class: Arterial ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	Vashon Dr. NE / Columbia Way NE (47.09724, -122.77000)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 26.0175	Other Single-Lane	2005	Opened December 2005. ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	I-5 NB Off-Ramp / Galaxy Dr. / Quinault Dr. (47.06127, -122.76890)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.5438	Other Single-Lane	2000	Completed November 1, 2000. ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	Marvin Rd. NE / Main St. NE (47.06709, -122.76828)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 48.7680	Other Multilane (2 Lane)	2000	Roundabout installed, although cross street not initially constructed.
Prince George, BC Fraser-Fort George Region Canada	Cameron St. / N. Neechako Rd. (53.92850, -122.76743)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.0000	Other Single-Lane	2009	Completed August 2009. http://www.city.pg.bc.ca/city_services/transportation/cameronstreetbridge/
Lacey, WA Thurston Co. United States	Hogum Bay Rd. NE / Willamette Dr. NE (47.06943, -122.76485)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.8601	Other Multilane (2 Lane)	2017	ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	SR 510 (Marvin Rd.) / Pacific Ave. (47.03941, -122.76480)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.5572	Other Multilane (2 Lane)	2003	Completed July 28, 2003. Functional Class: Arterial ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Regional District Canada	King George Hwy / 8th Ave. (49.01661, -122.76240)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.4647	Other Single-Lane	2004	ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	Lacey Regional Athletic Center Entrance (47.04578, -122.76200)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 25.2288	Other Single-Lane	2007	July 2007. ICD estimated from Google Maps linework.
Woodland, WA Cowlitz United States	Dike Access Rd. / Schurman Way (45.92657, -122.75960)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 37.3838	Other Single-Lane	2012	ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Regional District Canada	8 Ave. / Hwy 99 NB Ramps (49.01694, -122.75800)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.4645	Freeway Ramps Multilane (2 Lane)	2005	ICD estimated from Google Maps linework.
Woodland, WA Cowlitz United States	Dike Access Rd. / I-5 SB Ramps (45.92699, -122.75780)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 39.0450	Other Single-Lane	2010	December 2010. ICD estimated from Google Maps linework.
Seabeck, WA Kitsap Co. United States	Seabeck Hwy NW / NW Holly Rd. (47.60901, -122.75692)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other Single-Lane	2015	Open October 2015.
Woodland, WA Cowlitz United States	Dike Access Rd. / I-5 NB Ramps (45.92774, -122.75520)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 33.2293	Other Single-Lane	2010	December 2010. ICD estimated from Google Maps linework.
Blaine, WA Whatcom United States	I-5 SB Ramps / Peace Portal Dr. / Marine Dr. (48.99723, -122.75250)	Roundabout Existing	All-Way Yield At-Grade Rail Crossing Gates (controlling approach only)	4 Approaches 0 Driveways 26.6422	Freeway Ramps Single-Lane	2010	May 2010. Roundabout is ~200 ft from railroad crossing. ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	Willamette Dr. NE / 31st Ave. NE (47.07789, -122.75228)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.9205	Other Multilane (2 Lane)	2015	Open October 2015. ICD estimated from Google Maps linework.
Blaine, WA Whatcom United States	I-5 NB Ramps / D St. / 2nd St. (48.99810, -122.75140)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.6939	Freeway Ramps Single-Lane	2010	May 2010. ICD estimated from Google Maps linework.
Bremerton, WA Kitsap United States	Cross SKIA Connector / Harry Earl Rd. (47.50340, -122.75060)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.2730	Other Single-Lane	2010	September 2010. ICD estimated from Google Maps linework.
Lacey, WA Thurston United States	Meridian Rd. / Orion Dr. (47.06890, -122.74140)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.1661	Other Single-Lane	2002	Opened October 2002. Functional Class: Collector ICD estimated from Google Maps linework.
Woodland, WA Cowlitz Co. United States	SR 503 (Lewis River Rd.) / Scott Ave. (45.91699, -122.74009)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.7138	Other Single-Lane	2015	Open September 2015. ICD estimated from Google Maps linework.
Woodland, WA Cowlitz United States	Insel Rd. / Willow St. (45.92236, -122.73390)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 30.7401	Other Single-Lane	2009	June 2009. ICD estimated from Google Maps linework.
Blaine, WA Whatcom United States	Grandview Rd. (SR 548) / Blaine Rd. / BP Refinery access (48.89202, -122.72650)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 38.4771	Other Single-Lane	2010	September 2010. ICD estimated from Google Maps linework.
Lake Oswego, OR Clackamas United States	SW Carman Dr. / SW Meadows Rd. / SW Quarry Rd. (45.41700, -122.72490)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.3422	Other Single-Lane	2003	ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	N Clarendon Ave (45.58974, -122.72415)	Neighborhood Traffic Circle Existing	Unknown None	1 Approaches 1 Driveways	Other Single-Lane
Port Orchard, WA Kitsap Co. United States	SW Lake Flora Rd. / JM Dickenson Rd. SW (47.46497, -122.72410)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.9114	Other Single-Lane	2011	https://pugetsoundblogs.com/roadwarrior/tag/lake-flora/ ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SW 47th Dr. / SW 43rd Ave. (45.49245, -122.72111)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 54.4198	Other Mini-roundabout	2007	Completed 4/29/2007. Painted but unraised central island. No splitter islands. ICD estimated from Google Maps linework.
Ridgefield, WA Clark Co. United States	35th Avenue / Pioneer Street (WA SR-501) (45.81557, -122.71310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.4585	Other Single-Lane	2018	ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NW 27th Ave. / NW Raleigh St. (45.53395, -122.70680)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 10.0393	Other Single-Lane	1988	Completed 9/30/1988. ICD estimated from Google Maps linework.
Ridgefield, WA Clark Co. United States	NW 319th St. / NW 31st Ave. (45.85180, -122.70607)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.7616	Other Single-Lane	2017	Part of Ilani Casino interchange project and is operational. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NW 26th Ave. / NW Raleigh St. (45.53397, -122.70479)	Neighborhood Traffic Circle Existing	Unknown None	4 Approaches 0 Driveways 19.2420	Other Single-Lane	1988	Completed 9/30/1988. ICD estimated from Google Maps linework.
Ferndale, WA Whatcom Co. United States	SR 548 (Grandview Rd.) / Kickerville Rd. (48.89209, -122.70435)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other Single-Lane	2018
Ridgefield, WA Clark Co. United States	NW 319th St. / I-5 SB Ramps (45.85163, -122.70380)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 48.7680	Freeway Ramps Multilane (2 Lane)	2017	Part of Ilani Casino interchange project.
Silverdale, WA Kitsap United States	NW Anderson Hill Rd. / Frontier Pl. NW (47.65368, -122.70350)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 21.7218	Other Single-Lane	2003	Opened September 2003. ICD estimated from Google Maps linework.