Roundabouts Database Index

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
Port Ludlow, WA Jefferson Co. United States	SR 104 / SR 19 (Beaver Valley Rd.) (47.89014, -122.73245)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2024	Through lane bypass on west leg. https://www.facebook.com/groups/porttownsendchat/posts/the-highway-104-and-19-roundabout-is-open-in-all-directions/1440699556614168/?_rdr
Woodland, WA Cowlitz Co. United States	Insel Rd. / Willow St. (45.92237, -122.73400)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2009	June 2009.
Port Coquitlam, BC Greater Vancouver Canada	Fremont St. / Fremont Dr. / Hwy 7B (Loogheed Hwy.) Exit Ramp (49.24939, -122.73402)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.0000	Freeway Ramps (Grade-Separated) Single-Lane	2010	Raindrop shaped. Year Completed estimated (2008-2011).
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 (At-Grade) Single-Lane	2015	Open September 2015. ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Yelm Hwy. SE / Meridian Rd. SE (46.98551, -122.74087)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://yelm-meridian-thurston.hub.arcgis.com/
Lacey, WA Thurston Co. United States	Meridian Rd. / Orion Dr. (47.06890, -122.74140)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.1661	Other (At-Grade) Single-Lane	2002	Opened October 2002. Functional Class: Collector ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Canada	3A Ave. / 172 St. (49.00848, -122.74635)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2012
Coquitlam, BC Greater Vancouver Canada	Soball St. / Gislason Ave. (49.28930, -122.75026)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.0000	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2009-2011).
Bremerton, WA Kitsap Co. 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 (At-Grade) Single-Lane	2010	September 2010. ICD estimated from Google Maps linework.
Blaine, WA Whatcom Co. 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 (Grade-Separated) Single-Lane	2010	May 2010. ICD estimated from Google Maps linework.
Gorst, WA Kitsap Co. United States	SR 3 / Airport Way SW (47.50426, -122.75160)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 41.1480	Other (At-Grade) Single-Lane	2021	Elliptical shaped. ICD = 135 ft x 125 ft. Year Completed estimated (2020-2021).
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 (At-Grade) Multilane (2 Lane, unspecified)	2015	Open October 2015. ICD estimated from Google Maps linework.
Blaine, WA Whatcom Co. United States	I-5 SB Ramps / Peace Portal Dr. / Marine Dr. (48.99723, -122.75250)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling approach only)	4 Approaches 0 Driveways 26.6422	Freeway Ramps (Grade-Separated) Single-Lane	2010	May 2010. Roundabout is ~200 ft from railroad crossing. ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Marvin Rd. SE / Lake Forest Dr. SE / Oakwood St. SE (47.01411, -122.75428)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019
Woodland, WA Cowlitz Co. United States	Dike Access Rd. / I-5 NB Ramps (45.92780, -122.75522)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Freeway Ramps (Grade-Separated) Single-Lane	2010	Raindrop shaped. December 2010.
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 (At-Grade) Single-Lane	2015	Open October 2015.
Woodland, WA Cowlitz Co. United States	Dike Access Rd. / I-5 SB Ramps (45.92699, -122.75780)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Freeway Ramps (Grade-Separated) Single-Lane	2010	December 2010.
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 (Grade-Separated) Multilane (2 Lane, unspecified)	2005	ICD estimated from Google Maps linework.
Woodland, WA Cowlitz Co. United States	Dike Access Rd. / Schurman Way / (parking) (45.92664, -122.75957)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2012
Lacey, WA Thurston Co. United States	(unknown) / (unknown) (47.04571, -122.76216)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2007	Serves Lacey Regional Athletic Center. July 2007.
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 (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Canada	25 Ave. / 166 St. (49.04745, -122.76265)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2022
Lacey, WA Thurston Co. 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 (At-Grade) Multilane (2 Lane, unspecified)	2003	Completed July 28, 2003. Functional Class: Arterial ICD estimated from Google Maps linework.
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 (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
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 (At-Grade) Single-Lane	2009	Completed August 2009. http://www.city.pg.bc.ca/city_services/transportation/cameronstreetbridge/
Lacey, WA Thurston Co. 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 (At-Grade) Multilane (2 Lane, unspecified)	2000	Roundabout installed, although cross street not initially constructed.
Lacey, WA Thurston Co. 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 (At-Grade) Single-Lane	2000	Completed November 1, 2000. ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	Vashon Dr. NE / Columbia Way NE (47.09724, -122.77000)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 26.0175	Other (At-Grade) Single-Lane	2005	Opened December 2005. ICD estimated from Google Maps linework.
Port Townsend, WA Jefferson Co. United States	SR 20 / Kearney St. (48.11000, -122.77066)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2023
Lacey, WA Thurston Co. United States	Marvin Rd. / Britton Pkwy. (47.06905, -122.77090)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.3682	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	Completed September 14, 2000. Functional Class: Arterial 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 (At-Grade) Single-Lane	2007	http://www.icbc.com/road_safety/road_improve_pu/surrey.asp ICD estimated from Google Maps linework.
Beaverton, OR Washington Co. United States	SW 92nd Ave. / SW Allen Blvd. (45.47149, -122.77200)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	3 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2022	RRFB at shared-use crossing on south leg serving Fanno Creek Trail. https://www.beavertonoregon.gov/718/CIP-3112---Allen-Blvd92nd-Ave-Shared-Use?contentId=2643d655-60c2-481d-bf75-2f33d242b523
Tualatin, OR Washington Co. United States	(unknown) (45.35135, -122.77261)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
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 (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	Mullen Rd. SE / Carpenter Rd. SE (47.00464, -122.77990)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2021	Year Completed estimated (2021-2022).
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 (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	Marvin Rd. / Hawks Prairie Rd. (47.08312, -122.78070)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.6509	Other (At-Grade) Single-Lane	2002	Constructed September 14, 2002. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Marvin Rd. NE / 41st Ave. NE (47.09046, -122.78075)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2014
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 (At-Grade) Single-Lane	2006	Year Completed estimated (2006-2007).
Lacey, WA Thurston Co. United States	Britton Pkwy. NE / Gateway Blvd. (47.06858, -122.78590)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 42.3012	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Opened September 2007. ICD estimated from Google Maps linework.
Wilsonville, OR Clackamas Co. United States	SW Barber St. / Brown Rd. (45.30865, -122.78620)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.3179	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Wilsonville, OR Clackamas Co. United States	SW Carinthia Circle (45.31150, -122.78783)	Other Existing	Unknown Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Wilsonville, OR Clackamas Co. United States	SW Boeckman Rd. / Tooze Rd. (45.31616, -122.78790)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.3126	Other (At-Grade) Single-Lane	2008	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 (At-Grade) Single-Lane	2016	Year Completed estimated (2015-2016).
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 (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Wilsonville, OR Clackamas Co. 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 (At-Grade) Single-Lane	2007	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 (At-Grade) Single-Lane	2014	Year Completed estimated (2014-2015). ICD estimated from Google Maps linework.
Port Townsend, WA Jefferson Co. United States	SR 20 (Sims Way) / Thomas St. (48.10333, -122.79891)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2010	July 2010.
Wilsonville, OR Clackamas Co. 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 (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Wilsonville, OR Clackamas Co. United States	SW Alta Ln. / SW Alta Ct. (45.30418, -122.80186)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Belfair, WA Mason Co. United States	SR 3 / Log Yard Rd. (47.46778, -122.80455)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2020	Central island truck apron and external truck aprons for long trucks making turns. Year Completed estimated (2018-2021).
Port Townsend, WA Jefferson Co. United States	SR 20 (Sims Way) / Howard St. / Evans Vista (48.10260, -122.80500)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2010	April 2010.
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 (At-Grade) Single-Lane
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 (At-Grade) Single-Lane	2017	Two-way separated bike path along east side. ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. 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 (At-Grade) Multilane (2 Lane, unspecified)	2003	Completed September 16, 2003. Functional Class: Arterial ICD estimated from Google Maps linework.
Beaverton, OR Washington Co. 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 (At-Grade) Single-Lane		Functional Class: Collector. Pedestrian ramps into circulatory roadway. 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 (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
King City, OR Washington Co. United States	SW Fischer Rd. / SW 136th Ave. (45.39676, -122.81642)	Other Existing	All-Way Stop Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
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 (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Windsor, CA Sonoma Co. United States	Windsor River Rd. / Windsor Rd. (38.54725, -122.81687)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling all approaches)	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	Rail line through central island.
Lacey, WA Thurston Co. United States	Parkside Dr. SE / 53rd St. SE (47.00040, -122.81703)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2006-2009).
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 (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
White City, OR Jackson Co. United States	OR 140 / Atlantic Ave. / Foothill Rd. (42.42259, -122.81859)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	https://content.govdelivery.com/accounts/ORDOT/bulletins/2a5a500
Lacey, WA Thurston Co. United States	Rainier Rd. SE / SE Balustrade Blvd. (46.98697, -122.82220)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2005	September 2005. Horizon Pointe subdivision. Serves as primary access to Horizon Pointe Elementary School.
Lacey, WA Thurston Co. United States	College St. / 45th Ave. (47.00710, -122.82310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.0923	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Completed November 6, 2002. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	22nd Ave. SE / College St. SE (47.02744, -122.82321)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	https://www.theolympian.com/news/local/article245417580.html
Sherwood, OR Washington Co. 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 (At-Grade) Single-Lane	2002	Completed November 2002. ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. 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 (At-Grade) Multilane (2 Lane, unspecified)	2003	Completed July 22, 2003. Functional Class: Arterial ICD estimated from Google Maps linework.
Sherwood, OR Washington Co. United States	Langer Farms Pkwy. / Century Dr. (45.36454, -122.83630)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.3477	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	Opened November 2011 ICD estimated from Google Maps linework.
Beaverton, OR Washington Co. 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 (At-Grade) Single-Lane		Characteristics of a roundabout, but yield signs replaced with stop signs in 1998. ICD estimated from Google Maps linework.
Sherwood, OR Washington Co. United States	SW Oregon St. / SW 1st St. / SW Ash St. (45.35781, -122.83924)	Other Existing	Uncontrolled Unknown	4 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-Lane
Olympia, WA Thurston Co. United States	Chehalis Western Trl. / Woodland Trl. (47.03914, -122.83937)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 15.2400	Other (At-Grade) Single-lane w/ Traversable Central Island	2015	Bicycle trail to bicycle trail only roundabout.
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 (At-Grade) Single-Lane	2003	http://www.minnowlake.ca/Roundabouts_in_Canada_2013%20(1).pdf ICD estimated from Google Maps linework.
Tigard, OR Washington Co. 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 (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Medford, OR Jackson Co. United States	Springbrook Rd. / Cedar Links Dr. (42.35287, -122.84582)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://www.medfordoregon.gov/News-Articles/Springbrook-Road-Improvement-Project
Olympia, WA Thurston Co. United States	18th Ave. SE / Fones Rd. SE (47.03250, -122.84697)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2010	Double-right turn on north leg. October 2010.
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 (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
River Terrace, OR Washington Co. United States	SW River Terrace Blvd. / SW Appledale Rd. (45.42317, -122.84929)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2018
Olympia, WA Thurston Co. 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 (At-Grade) Single-Lane	2010	Opened October 2010. ICD estimated from Google Maps linework.
Medford, OR Jackson Co. United States	Highland Dr. / Siskiyou Blvd. (42.32110, -122.84986)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2006	Elliptical shaped. ICD = 140 ft x 125 ft. Fire station on south leg.
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 (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2012). ICD estimated from Google Maps linework.
Kalama, WA Cowlitz Co. United States	Kalama River Rd. / Old Hwy 99 (46.04277, -122.85420)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2020	Year Completed estimated (2018-2021).
Sherwood, OR Washington Co. 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 (At-Grade) 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 (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Sherwood, OR Washington Co. United States	Meinecke Pkwy. / Cedar Brook Way (45.36180, -122.85870)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.0842	Other (At-Grade) Single-Lane	2003	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 (At-Grade) Single-Lane	2014	Right-turn-only lane on west leg. Elliptical shape. Open October 2014. 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 (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. 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 (At-Grade) Multilane (2 Lane, unspecified)	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	Yelm Hwy SE / Boulevard Rd. SE (47.00397, -122.86540)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	3 Approaches 1 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	May 2011. Right-turn-only lane on north leg. Located about 1000 feet from Centennial Elementary School and serves as a walking and school bus route.
Sherwood, OR Washington Co. United States	SW Elwert Rd. / SW Kruger Rd. / Cedar Ln. (45.35477, -122.86786)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	Intersection of Kruger/Elwert was moved north a few hundred feet. That intersection was previously a two-way stop.
Medford, OR Jackson Co. United States	E Main St. / E 8th St. (42.32781, -122.86861)	Other Existing	Uncontrolled None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Bicycle-only circular intersection.
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 (At-Grade) Single-Lane	2018	At-grade railroad crossing through central island. 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 (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Yelm Hwy SE / Brassfield Rd. SE (47.00372, -122.87309)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2011	May 2011.
Surrey, BC Greater Vancouver Canada	125A St. / Station Rd. (49.10068, -122.87456)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.0000	Other (At-Grade) Single-Lane	2015
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 (Grade-Separated) Single-Lane	2015	Open August 2015. Elliptical shape. ICD = approximately 110 ft x 100 ft.
Olympia, WA Thurston Co. United States	Henderson Blvd. SE / Carlyon Ave. SE (47.01989, -122.87768)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	https://thejoltnews.com/stories/city-transportation-engineering-supervisor-explains-henderson-roundabout,267?
Olympia, WA Thurston Co. United States	Eskridge Blvd. SE / Henderson Blvd. SE (47.02326, -122.87856)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	https://thejoltnews.com/stories/city-transportation-engineering-supervisor-explains-henderson-roundabout,267?
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 36.1932	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2012). West leg religned to southwest 2016-2017. ICD estimated from Google Maps linework. 21442
Olympia, WA Thurston Co. 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 (At-Grade) Single-Lane	2005	Opened July 2005. Southbound right turn bypass lane. ICD estimated from Google Maps linework.