Roundabouts Database

29483 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
Redmond, WA
King Co.
United States 		NE 76th St. / 164th Ave. NE
(47.67214, -122.12180) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
99.7242 		Other (At-Grade)
Single-Lane 		2012 Oblong shape. Connected two T-intersections on either side of median to allow crossing and left-turn movements. Open December 2012. ICD estimated from Google Maps linework.
Snoqualmie, WA
King Co.
United States 		SR 202 / Tokul Rd. / Mill Pond Rd.
(47.54073, -121.83292) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
37.8938 		Other (At-Grade)
Single-Lane 		2016 Open August 2016. ICD estimated from Google Maps linework.
Redmond, WA
King Co.
United States 		NE 116th St. / 172nd Ave. NE
(47.70403, -122.11106) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.5420 		Other (At-Grade)
Single-Lane 		2015 Open April 2015. ICD estimated from Google Maps linework.
Redmond, WA
King Co.
United States 		NE 116th St. / 162nd Ave. NE
(47.70420, -122.12313) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
116.5413 		Other (At-Grade)
Single-Lane 		2014 Open May 2014. ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Boylston Ave. / E. Howell St.
(47.61765, -122.32347) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
128.8107 		Other (At-Grade)
Single-Lane 		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.
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.
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.
Kent, WA
King Co.
United States 		SE 244th St. / 100th Ave. SE
(47.38335, -122.20736) 		Traffic Calming Circle
Existing 		Other
None 		4 Approaches
0 Driveways
11.3213 		Other (At-Grade)
Single-Lane 		2016 This is now a dog bone-shaped traffic circle with two-way Yield control on the east and west approaches and no control north-south. Previous control was stop-control on the east leg only before the west leg was built. ICD estimated from Google Maps linework.
Federal Way, WA
King Co.
United States 		S 308th St. / 14th Ave. S
(47.32601, -122.31601) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
19.5072 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2014 This is a mini-roundabout with fully traversable center island. Inscribed diameter is about 64 feet, opened in August 2014. An RRFB is present at the school crossing on the east leg; the previous raised crosswalk was removed. The north leg is a driveway to the newly remodeled high school. Both streets are Minor Collectors with 25 mph speed limits.
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
Shoreline, WA
King Co.
United States 		NE 185 St. / 10th Ave. NE
(47.76316, -122.31888) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2020 https://www.shorelineareanews.com/2020/04/roundabout-completed-at-10th-ne-and-ne.html
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
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/
Maple Valley, WA
King Co.
United States 		SE 240th Blvd. / 228th Ave. SE
(47.38734, -122.03723) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2018 Southwest leg stubbed. Year Completed estimated (2017-2018).
Maple Valley, WA
King Co.
United States 		228th Ave. SE / SE 275th Pl. / SE Bear Blvd.
(47.35485, -122.03766) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2017 Year Completed estimated (2016-2017).
Woodinville, WA
King Co.
United States 		NE 171st St. / 131st Ave. NE / (parking)
(47.75074, -122.16148) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019).
Woodinville, WA
King Co.
United States 		NE 171st St. / 135th Ave. NE
(47.75063, -122.15921) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2017 Year Completed estimated (2017-2018).
Redmond, WA
King Co.
United States 		Redmond Ridge Dr. NE / NE Cedar Park Crest
(47.68578, -122.03278) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2011 Year Completed estimated (2011-2012).
North Auburn, WA
King Co.
United States 		K St. SE / 2nd St. SE
(47.30617, -122.21619) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Eastgate, WA
King Co.
United States 		SE Newport Way / 164th Ave. SE
(47.57236, -122.12142) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.5072 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2019 https://dev.bellevuewa.gov/sites/default/files/media/pdf_document/levy-164th-SE-newport-way-roundabout-mailer-2018.pdf
Bellevue, WA
King Co.
United States 		SE 46th Way / 157th Ave. SE
(47.56285, -122.13218) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Kent, WA
King Co.
United States 		Willis St. / 4th Ave.
(47.37808, -122.23747) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		2020 https://www.kentwa.gov/Home/Components/FacilityDirectory/FacilityDirectory/1660/568
Sammamish, WA
King Co.
United States 		Issaquah-Fall City Rd. / 242nd Ave. SE
(47.55712, -122.01726) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021 https://connect.sammamish.us/ifcr-project-look-ahead?category=11%2F5%2F19&tool=news_feed
Sammamish, WA
King Co.
United States 		SE Issaquah Fall City Rd. / 247th Pl. SE
(47.56108, -122.00948) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021 https://connect.sammamish.us/ifcr-project-look-ahead?category=11%2F5%2F19&tool=news_feed
Sammamish, WA
King Co.
United States 		SE Issaquah-Fall City Rd. / Klahanie Dr. SE / 252nd Ave. SE
(47.56365, -122.00398) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021 https://connect.sammamish.us/ifcr-project-look-ahead?category=11%2F5%2F19&tool=news_feed
Sammamish, WA
King Co.
United States 		SE Issaquah-Beaver Lake Rd. / 256th Ave. SE / E Beaver Lake Dr. SE
(47.57849, -121.99831) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2019-2020).
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
Ballard, WA
King Co.
United States 		NW 83rd St. / 23rd Ave. NW
(47.68871, -122.38542) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 83rd St. / 22nd Ave. NW
(47.68871, -122.38435) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 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 		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 83rd St. / Mary Ave. NW
(47.68875, -122.37549) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 83rd St. / 14th Ave. NW
(47.68875, -122.37413) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 83rd St. / 12th Ave. NW
(47.68875, -122.37144) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
13.7157 		Other (At-Grade)
Single-Lane
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
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
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 		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
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 		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
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
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 		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
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
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
Crown Hill, WA
King Co.
United States 		NW 7tth St. / 19th Ave. NW
(47.68504, -122.38110) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		NW 77th St. / 18th Ave. NW
(47.68505, -122.38004) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-Lane
Ballard, WA
King Co.
United States 		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 		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
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
Black Diamond, WA
King Co.
United States 		SE Auburn Black Diamond Rd. / Ten Trails Pkwy. SE
(47.31106, -122.03510) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.4528 		Other (At-Grade)
Single-Lane 		2019 North leg added 2021-2022.
North Bend, WA
King Co.
United States 		SE North Bend Way / 436th Ave. SE
(47.48132, -121.75803) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021
Sammamish, WA
King Co.
United States 		SE 4th St. / 218th Ave. SE
(47.60555, -122.04899) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
21.9453 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2020
Sammamish, WA
King Co.
United States 		SE 4th St. / 222nd Pl. SE
(47.60554, -122.04307) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.8120 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2020
Sammamish, WA
King Co.
United States 		SE 4th St. / 224th Ave. SE
(47.60553, -122.04091) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.6032 		Other (At-Grade)
Single-Lane 		2020
Sammamish, WA
King Co.
United States 		SE 4th St. / 224th Pl. SE
(47.60552, -122.03916) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.2128 		Other (At-Grade)
Single-Lane 		2020
Duvall, WA
King Co.
United States 		NE Big Rock Rd. / 3rd Ave. NE
(47.72685, -121.98193) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
34.1373 		Other (At-Grade)
Single-Lane 		2019
Duvall, WA
King Co.
United States 		Railroad Way NE / NE 143rd Pl.
(47.72994, -121.98822) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
32.3085 		Other (At-Grade)
Single-Lane 		2020 Yield at entry, but no splitter islands.
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
Federal Way, WA
King Co.
United States 		S 317th St. / 11th Pl. S
(47.31677, -122.31839) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2016 Access to multifamily housing, public streets.
Federal Way, WA
King Co.
United States 		SW 329th Way / 49th Ave. SW
(47.30724, -122.39523) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.3357 		Other (At-Grade)
Single-Lane 		2017 Painted splitter islands.
Federal Way, WA
King Co.
United States 		20th Ave. S / S 332nd St.
(47.30376, -122.30750) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
19.2024 		Other (At-Grade)
Single-Lane 		2007 Painted splitter islands, limited outside curbing.
Federal Way, WA
King Co.
United States 		20th Ave. S / S 330th St.
(47.30605, -122.30752) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.2024 		Other (At-Grade)
Single-Lane 		2007 Painted splitter islands, limited outside curbing
Seattle, WA
King Co.
United States 		NE 47th St. / 8th Ave. NE
(47.66314, -122.31957) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Seattle, WA
King Co.
United States 		NE 47th St. / 9th Ave. NE
(47.66312, -122.31841) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
(unincorporated), WA
King Co.
United States 		Redmond Ridge Dr. / NE Alder Crest Dr.
(47.69211, -122.03572) 		Roundabout
Unknown 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2024 https://kingcounty.gov/en/dept/local-services/transit-transportation-roads/roads-and-bridges/projects-and-programs/redmond-ridge-dr-ne-roundabout (open to traffic, but final paving delayed by weather until Spring 2024)
Shoreline, WA
King Co.
United States 		NE 185th St. / 8th Ave. NE
(47.76320, -122.32152) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2024 https://www.shorelineareanews.com/2024/05/185th-roundabout-is-open.html
Mercer Island, WA
King Co.
United States 		N Mercer Way / 77th Ave. SE
(47.58909, -122.23430) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2023 https://letstalk.mercergov.org/Transit-Interchange/news_feed/transit-interchange-complete
Kirkland, WA
King Co.
United States 		NE 132nd St. / Totem Lake Blvd. NE / 116th Ave. NE / I-405 NB Entrance Ramp
(47.71844, -122.18653) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2024 https://wsdot.wa.gov/construction-planning/search-projects/i-405northeast-132nd-street-interchange-project
Kirkland, WA
King Co.
United States 		NE 132nd St. / 116th Way NE / I-405 SB Exit Ramp / 114th Pl. NE
(47.71843, -122.18834) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		5 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2024 https://wsdot.wa.gov/construction-planning/search-projects/i-405northeast-132nd-street-interchange-project
Maple Valley, WA
King Co.
United States 		Witte Rd. SE / SE 254th Pl.
(47.37383, -122.04867) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2024 https://www.maplevalleywa.gov/departments-services/public-works/capital-improvement-projects/current-transportation-improvement-projects/t-28b-ph-3-south-witte-road-se-roundabout-improvements
Enumclaw, WA
King Co.
United States 		Semanski St. / Warner Ave.
(47.19201, -122.00551) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2021 Next to Enumclaw High School. https://www.courierherald.com/news/council-awards-bid-for-roundabout-in-front-of-enumclaw-high/
Seattle, WA
King Co.
United States 		S Atlantic St. / Sturgus Ave. S
(47.59000, -122.31165) 		Traffic Calming Circle
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Kent, WA
King Co.
United States 		94th Ave. S / S 237th Pl.
(47.38921, -122.21537) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.2024 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2023 Raised but mountable central island, painted splitter islands.
North Bend, WA
King Co.
United States 		436th Ave. SE / SE 136th St.
(47.47778, -121.75834) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 https://livingsnoqualmie.com/updated-construction-schedule-for-se-136th-street-436th-avenue-roundabout-in-north-bend/
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
Federal Way, WA
King Co.
United States 		S 300th St. / 24th Pl. S / (parking)
(47.33323, -122.30213) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.8120 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2021 Painted splitter islands. Year Completed estimated (2020-2021).
Federal Way, WA
King Co.
United States 		S 300th St. / 26th Ave. S / (parking)
(47.33321, -122.30053) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.8120 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2021 Painted splitter islands. Year Completed estimated (2020-2021).
Kent, WA
King Co.
United States 		SE 272nd St. / 106th Ave. SE
(47.35794, -122.19865) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.2880 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2022 Built by developer.
Bellevue, WA
King Co.
United States 		100th Ave. NE / NE 10th St. / Belfair Ln.
(47.61924, -122.20706) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.3360 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2020 Year Completed estimated (2019-2020).
Plateau, WA
King Co.
United States 		Auburn Way / (school entrance) / (parking)
(47.28822, -122.18165) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2022 Entrance to Chinook elementary school.
Seattle, WA
King Co.
United States 		Minor Ave. / Union St.-E Union St. / Bellevue Ave.
(47.61296, -122.32688) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Kingston, TAS
Kingborough
Australia 		Summerleas Rd. / Whitewater Crescent / B68 (Southern Outlet) NB Ramps
(-42.97495, 147.30084) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane
Kettering, TAS
Kingborough
Australia 		Ferry Rd. / Bruny Island Ferry entrance
(-43.12760, 147.25658) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Kingston, TAS
Kingborough
Australia 		Channel Hwy. / Summerleas Rd. / B68 (Southern Outlet) Ramps
(-42.97559, 147.30418) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane 		Oval shaped.
Kingston, TAS
Kingborough
Australia 		B68 (Channel Hwy.) / Freeman St. / Goshawk Way
(-42.97579, 147.30792) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Blackmans Bay, TAS
Kingborough
Australia 		Roslyn Ave. (C623) / Algona Rd.
(-42.99929, 147.32056) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Kingston, TAS
Kingborough
Australia 		Summerleas Rd. / A6 (Huon Hwy.) NB Ramps
(-42.96700, 147.28763) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane 		Raindrop shaped.
Kingston, TAS
Kingborough
Australia 		Summerleas Rd. / A6 (Huon Hwy.) SB Ramps
(-42.96758, 147.28850) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane 		Raindrop shaped.
Kingston, TAS
Kingborough
Australia 		A6 (Huon Hwy.) / B68 (Southern Outlet) SB Ramps
(-42.97110, 147.31008) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane
Margate, TAS
Kingborough
Australia 		B68 (Channel Hwy.) / Beach Rd. / Pin Oak Pl.
(-43.02627, 147.26107) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Kingisepp, Leningrad
Kingiseppsky District
Russia 		Karla Marksa prospekt / Novopyatnitskoye derevnya / Krikkovskoye shosse
(59.37657, 28.62381) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified)
New Minas, NS
Kings
Canada 		Granite Dr. / Silver Fox Ave. / (parking lot)
(45.06720, -64.43992) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
46.3940 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 https://nstir.maps.arcgis.com/apps/webappviewer/index.html?id=628766dbddc946bfb1d4985bfa0e5d8c ICD estimated from Google Maps linework.
New Minas, NS
Kings
Canada 		Granite Dr. / Rte 101 WB Ramps
(45.06583, -64.43396) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.6806 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2018 https://nstir.maps.arcgis.com/apps/webappviewer/index.html?id=628766dbddc946bfb1d4985bfa0e5d8c ICD estimated from Google Maps linework.
New Minas, NS
Kings
Canada 		Granite Dr. / Rte 101 EB Ramps
(45.06404, -64.43281) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.9273 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2018 https://nstir.maps.arcgis.com/apps/webappviewer/index.html?id=628766dbddc946bfb1d4985bfa0e5d8c ICD estimated from Google Maps linework.
Hantsport, NS
Kings
Canada 		Ben Jackson Rd. / Sweetgrass Rd. / Rte 101 (Harvest Hwy.) EB Ramps
(45.07025, -64.22265) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6436 		Freeway Ramps (Grade-Separated)
Single-Lane 		2016 https://nstir.maps.arcgis.com/apps/webappviewer/index.html?id=628766dbddc946bfb1d4985bfa0e5d8c ICD estimated from Google Maps linework.
New Minas, NS
Kings
Canada 		Commercial St. / Granite Dr. / Old Dyke Rd.
(45.06908, -64.44179) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
37.9575 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 ICD estimated from Google Maps linework.