Roundabouts Database

29411 Results

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City, State
County
Country 		Intersection
(Lat, Lng) 		Type
Status 		Control Type / Other Control Type Approaches / Driveways / ICD (m) Functional Class /
LaneType 		Year Completed Comments
Galt, CA
Sacramento Co.
United States 		Twin Cities Rd. / E Stockton Blvd.
(38.29108, -121.31110) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.6210 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Near SR 99 NB freeway ramps. ICD estimated from Google Maps linework.
Galt, CA
Sacramento Co.
United States 		Twin Cities Rd. / W Stockton Blvd.
(38.29105, -121.31340) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.7463 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Near SR 99 SB freeway ramps. ICD estimated from Google Maps linework.
Porterville, CA
Tulare Co.
United States 		S Jaye St. / W Montgomery Ave.
(36.04954, -119.02654) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.8344 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Right-turn bypass lane on east leg. ICD estimated from Google Maps linework.
Farmersville, CA
Tulare Co.
United States 		N Farmersville Blvd. / Noble Ave.
(36.32561, -119.20792) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.6024 		Other (At-Grade)
Single-Lane 		2016 Right-turn-only lane on west leg. ICD estimated from Google Maps linework.
Loomis, CA
Placer Co.
United States 		Campus Dr. / Sierra College Blvd. connector
(38.79049, -121.20638) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.9964 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Cannery Ave. / Cannery Loop
(38.56265, -121.73883) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.6196 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
San Luis Obispo, CA
San Luis Obispo Co.
United States 		Chorro St. / Islay St.
(35.27610, -120.65977) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
15.6004 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
San Diego, CA
San Diego Co.
United States 		Streamview Dr. / Michael St. / Lynn St.
(32.74338, -117.07161) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
24.1092 		Other (At-Grade)
Single-Lane 		2017 Side street splitter islands are mini-style (no pedestrian refuge). Truck apron is 1" thick or less” ICD estimated from Google Maps linework.
San Diego, CA
San Diego Co.
United States 		Streamview Dr. / Gayle St.
(32.74436, -117.06584) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		3 Approaches
1 Driveways
15.0681 		Other (At-Grade)
Single-Lane 		2017 Side street splitter island is mini-style (no pedestrian refuge), Truck apron is 1" thick or less ICD estimated from Google Maps linework.
Redding, CA
Shasta Co.
United States 		Madison River Dr. / Clark River Dr.
(40.54198, -122.31914) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2002 Year Completed estimated (1999-2004).
McKinleyville, CA
Humboldt Co.
United States 		School Rd. / Salmon Ave. / McKinleyville Ave.
(40.93439, -124.11240) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.0680 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2012-2014). ICD estimated from Google Maps linework.
San Luis Obispo, CA
San Luis Obispo Co.
United States 		Chorro St. / High St.
(35.27217, -120.65736) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
10.7258 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
San Luis Obispo, CA
San Luis Obispo Co.
United States 		Chorro St. / Church St.
(35.27448, -120.65800) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
29.2513 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
San Luis Obispo, CA
San Luis Obispo Co.
United States 		Madonna Rd. / Devaul Ranch Dr.
(35.25454, -120.69548) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
21.4562 		Other (At-Grade)
Single-Lane 		2001 Year Completed estimated (1994-2002). ICD estimated from Google Maps linework.
San Luis Obispo, CA
San Luis Obispo Co.
United States 		Prado Rd. / Serra Meadows Dr.
(35.25402, -120.66256) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2015
San Luis Obispo, CA
San Luis Obispo Co.
United States 		Margarita Ave. / Cherry Ln.
(35.25603, -120.66104) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2014
Watsonville, CA
Santa Cruz Co.
United States 		SR 129 (Riverside Rd.) / Lakeview Rd.
(36.91682, -121.73169) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 https://pajaronian.com/new-roundabout-at-hwy-129-lakeview-road-opens/
San Luis Obispo, CA
San Luis Obispo Co.
United States 		Righotti Ranch Rd. / Tiburon Way
(35.25548, -120.63902) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2020
San Diego, CA
San Diego Co.
United States 		Landis St. / Louisiana St.
(32.74562, -117.14008) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Los Angeles, CA
Los Angeles Co.
United States 		Canyon Dr. / N Bronson Ave.
(34.10991, -118.31706) 		Other
Existing 		All-Way Stop
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021
Salinas, CA
Monterey Co.
United States 		Iris Dr. / Lupin Dr.
(36.69330, -121.65378) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2018
Salinas, CA
Monterey Co.
United States 		Iris Dr. / Heather Cir.
(36.69339, -121.65642) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2018
Salinas, CA
Monterey Co.
United States 		S Riker St. / Nissen Rd.
(36.65955, -121.66437) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2018
Salinas, CA
Monterey Co.
United States 		S Riker St. / Woodside Dr.
(36.66051, -121.66402) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2018
Salinas, CA
Monterey Co.
United States 		S Riker St. / Orange Dr.
(36.66228, -121.66338) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2018
Salinas, CA
Monterey Co.
United States 		S Riker St. / W Romie Ln.
(36.66382, -121.66284) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2018
Merced, CA
Merced Co.
United States 		E Olive Ave. / Campus Pkwy.
(37.31778, -120.42305) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021 http://www.mercedgwnews.com/new-roundabout-to-open-in-merced-this-is-the-location/
San Diego, CA
San Diego Co.
United States 		Surface Navy Blvd. / S 32nd St.
(32.68369, -117.12563) 		Roundabout
Existing 		All-Way Yield
Other 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 Inside Naval Base San Diego. Entrance station on north leg. Year Completed estimated (2009-2010).
Soledad, CA
Monterey Co.
United States 		Metz Rd. / East St.
(36.42803, -121.32308) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 https://salinasvalleytribune.com/soledad-unveils-areas-first-roundabout-intersection/
San Luis Obispo, CA
San Luis Obispo Co.
United States 		Orcutt Rd. / Ranch House Rd.
(35.26134, -120.63978) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2019 Elliptical shaped. ICD = 105 ft x 100 ft. Driveway between crosswalk and entrance line on east leg.
Yosemite National Park, CA
Mariposa Co.
United States 		Northside Dr. / Village Dr.
(37.74508, -119.58351) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2017 https://goldrushcam.com/sierrasuntimes/index.php/news/local-news/9914-yosemite-national-park-implements-a-new-roundabout-in-the-yosemite-village-parking-area
Vista, CA
San Diego Co.
United States 		S Santa Fe Ave. / Pala Vista Dr.
(33.19467, -117.23597) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2021 Open to traffic 2021 but incomplete. Year Completed estimated (2021-2022).
Inglewood, CA
Los Angeles Co.
United States 		District Dr. / Stadium Dr. / (parking)
(33.94672, -118.34036) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.0037 		Other (At-Grade)
Single-Lane 		2020 At So-Fi Stadium. Yield-controlled right-turn bypass lane leading to add lane at crosswalk. Year Completed estimated (2019-2020).
Clearlake Oaks, CA
Lake Co.
United States 		SR 20 / SR 53
(39.00852, -122.61426) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2019 Merging right-turn bypass lanes on all legs. Year Completed estimated (2019-2020).
Chico, CA
Butte Co.
United States 		E Eaton Rd. / SR 99 NB Ramps / Hicks Ln.
(39.77520, -121.87224) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2022
Rancho, CA
Shasta Co.
United States 		Shasta View Dr. / (future roads)
(40.53000, -122.31770) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2021
Rancho, CA
Shasta Co.
United States 		Shasta View Dr. / San Pablo St.
(40.52636, -122.31709) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2021
Rancho, CA
Shasta Co.
United States 		Shasta View Dr. / (unknown)
(40.52310, -122.31469) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021
Shasta Lake, CA
Shasta Co.
United States 		Smith Ave. / Jorsack Way / Rosstay Way
(40.66503, -122.36168) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2006 Crosswalks are at unmarked entrance lines.
Walnut, CA
Orange Co.
United States 		Colorado (St.)
(33.71340, -117.79113) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Havard Square Park.
San Clemente, CA
Orange Co.
United States 		Las Posas / Pavoreal
(33.46890, -117.63108) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
San Juan Capistrano, CA
Orange Co.
United States 		Camino de Vista / Camino de Vista
(33.46871, -117.66820) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
San Juan Capistrano, CA
Orange Co.
United States 		Paseo del Mar / Camino de Vista
(33.46897, -117.67050) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
San Juan Capistrano, CA
Orange Co.
United States 		Paseo del Mar / (unknown)
(33.46956, -117.66737) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
San Juan Capistrano, CA
Orange Co.
United States 		Via Angelina / Via Pimienta
(33.49441, -117.67731) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
San Juan Capistrano, CA
Orange Co.
United States 		Via Angelica / Via Egan
(33.49524, -117.67899) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
La Jolla, CA
San Diego Co.
United States 		Union Place Circle
(32.84600, -117.27010) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Camp Pendleton South, CA
San Diego Co.
United States 		Volcan Rd. / Jamul Dr.
(33.22510, -117.38293) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
San Marcos, CA
San Diego Co.
United States 		Village Dr. / Carnation Ct.
(33.12285, -117.16747) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Mix of stop and yield control.
Westpark, CA
Placer Co.
United States 		Mayhill Dr. / Ardley Dr.
(38.77507, -121.36969) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
Westpark, CA
Placer Co.
United States 		Mayhill Dr. / Parkham Dr.
(38.77222, -121.36546) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
Westpark, CA
Placer Co.
United States 		Wharton Ln.
(38.77188, -121.37325) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Junction West, CA
Placer Co.
United States 		Camino Real Way / Camino Real Way
(38.76573, -121.35364) 		Other
Existing 		All-Way Stop
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Cirby Side, CA
Placer Co.
United States 		Somer Ridge Dr. / (parking)
(38.72754, -121.28342) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Elk Grove, CA
Sacramento Co.
United States 		Nassa Circle
(38.40333, -121.41259) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Pedestrian access to central island.
(unincorporated), CA
Sacramento Co.
United States 		Bonito Circle
(38.39719, -121.40355) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Pedestrian access to central island.
UC Irvine, CA
Orange Co.
United States 		Arroyo Vista
(33.64610, -117.82633) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
(unincorporated), CA
San Joaquin Co.
United States 		SR 88 / E Liberty Rd.
(38.23596, -121.05106) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 https://www.facebook.com/CaltransDistrict10/posts/caltrans-begins-roundabout-project-on-state-route-88-at-liberty-road-near-clemen/3922838604435956/
San Luis Obispo, CA
San Luis Obispo Co.
United States 		Tank Farm Rd. / Orcutt Rd.
(35.25030, -120.62523) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://www.slocity.org/government/department-directory/public-works/programs-and-services/capital-improvement-projects/roundabouts
Carpinteria, CA
Santa Barbara Co.
United States 		Ogan Rd. / Via Real / US 101 NB On-Ramp
(34.40144, -119.51551) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2020 https://www.coastalview.com/news/roadways-open-with-improvements/article_979e3586-c6f1-11ea-bc84-b3d50932177b.html
Salinas, CA
Monterey Co.
United States 		E Alisal St. / Alisal Rd. / Bardin Rd.
(36.67331, -121.60192) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2022 Year Completed estimated (2021-2022).
Salinas, CA
Monterey Co.
United States 		Alisal Rd. / Sconberg Pkwy.
(36.67234, -121.60073) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.0144 		Other (At-Grade)
Single-Lane 		2022 Year Completed estimated (2021-2022).
Belmont Shore, CA
Los Angeles Co.
United States 		Ravenna Dr. / Corinthian Walk / The Toledo
(33.75451, -118.12361) 		Other
Existing 		Unknown
Unknown 		6 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Long Beach, CA
Los Angeles Co.
United States 		Aquarium Way
(33.76301, -118.19609) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Rohnert Park, CA
Sonoma Co.
United States 		Commerce Blvd. / Southwest Blvd.
(38.33615, -122.71171) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://www.pressdemocrat.com/article/news/rohnert-park-roundabout-completed-opens-wednesday/?artslide=0
Laguna, CA
Sacramento Co.
United States 		Coney Island Circle
(38.40992, -121.47661) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Hercules, CA
Contra Costa Co.
United States 		Maybeck Ln. / Craftsman Dr.
(38.02209, -122.26706) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Fountain Valley, CA
Orange Co.
United States 		(unknown) / (unknown)
(33.72539, -117.95204) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Buena Park, CA
Orange Co.
United States 		Lakeside Dr.
(33.87506, -117.98083) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Connection to multiuse path.
Shasta Hanchett Park, CA
Santa Clara Co.
United States 		Tillman Ave. / Hanchett Ave.
(37.32998, -121.91643) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Shasta Hanchett Park, CA
Santa Clara Co.
United States 		Martin Ave. / Sequoia Ave.
(37.33046, -121.91387) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Shasta Hanchett Park, CA
Santa Clara Co.
United States 		Martin Ave. / Tillman Ave.
(37.32929, -121.91560) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Shasta Hanchett Park, CA
Santa Clara Co.
United States 		Tillman Ave. / Sierra Ave.
(37.32858, -121.91476) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Shasta Hanchett Park, CA
Santa Clara Co.
United States 		Tillman Ave. / Yosemite Ave.
(37.32791, -121.91395) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Anaheim, CA
Orange Co.
United States 		S Manchester Ave.
(33.80065, -117.90323) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Azusa, CA
Los Angeles Co.
United States 		E Boxwood Ln. / Ortuno Dr.
(34.14304, -117.89763) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Pedestrian access to central island.
Santa Maria, CA
Santa Barbara Co.
United States 		W Beacon Way / Madison Ln.
(34.93382, -120.45941) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
Sea View Estates, CA
Ventura Co.
United States 		Patterson Rd. / Dunkirk Dr.
(34.19617, -119.20799) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2005).
Sea View Estates, CA
Ventura Co.
United States 		Dunkirk Dr. / Halifax Ln.
(34.19623, -119.21003) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Sea View Estates, CA
Ventura Co.
United States 		Dunkirk Dr. / Lazaro Ln.
(34.19627, -119.21144) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Channel Islands, CA
Ventura Co.
United States 		Seabridge Ln. / Tradewinds Dr.
(34.18993, -119.22479) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Channel Islands, CA
Ventura Co.
United States 		Tradewinds Dr.
(34.18994, -119.22822) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Channel Islands, CA
Ventura Co.
United States 		Harbour Island Ln. / Napoli Dr.
(34.18259, -119.22287) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Port Hueneme, CA
Ventura Co.
United States 		Las Palomas Dr. / (unknown)
(34.17900, -119.21096) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Hollister, CA
San Benito Co.
United States 		SR 25 / SR 156
(36.89565, -121.42733) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
78.0288 		Other (At-Grade)
Multilane (3+ Lane) 		2024 Rotor turbo roundabout. Opened December 2023; fully operational February 2024. https://www.sfgate.com/local/article/gilroy-california-turbo-roundabout-18585736.php
Santa Ynez, CA
Santa Barbara Co.
United States 		SR 154 / Edison St.
(34.63374, -120.08102) 		Roundabout
Unknown 		All-Way Yield
None 		4 Approaches
0 Driveways
46.0248 		Other (At-Grade)
Single-Lane 		Anticipated opening year Spring of 2024.
Coronado, CA
San Diego Co.
United States 		Bay Circle
(32.68240, -117.16935) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified)
Gilroy, CA
Santa Clara Co.
United States 		SR 152 (Hecker Pass Rd.) / Plum St.
(37.01188, -121.61789) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2021 Year Completed estimated (2021-2022).
Gilroy, CA
Santa Clara Co.
United States 		3rd St. / Plum St. / Lone Oak Ct. / Autumn Way
(37.01070, -121.61792) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2016
Gilroy, CA
Santa Clara Co.
United States 		3rd St. / Grassland Way
(37.00993, -121.61497) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2016
Gilroy, CA
Santa Clara Co.
United States 		Santa Teresa Blvd. / Ballybunion Dr. / W Luchessa Ave.
(36.99343, -121.59516) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
56.3880 		Other (At-Grade)
Single-Lane 		2019 Right-turn-only lanes on north and south legs. Appears to be designed for future multilane 2x1 configuration.
Gilroy, CA
Santa Clara Co.
United States 		W Luchessa Blvd. / Merlot Dr.
(36.99410, -121.59300) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Gilroy, CA
Santa Clara Co.
United States 		Merlot Dr. / Yawi Pl.
(36.99562, -121.59380) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Gilroy, CA
Santa Clara Co.
United States 		W Luchessa Ave. / W 10th St.
(36.99065, -121.58528) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2016
Gilroy, CA
Santa Clara Co.
United States 		W 10th St. / Charles Lux Dr.
(36.99160, -121.58385) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2016
Gilroy, CA
Santa Clara Co.
United States 		W Luchessa Ave. / Miller Ave.
(36.99209, -121.58788) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2021 Year Completed estimated (2020-2021).
Gilroy, CA
Santa Clara Co.
United States 		W Luchessa Ave. / Thomas Rd.
(36.99107, -121.57357) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2014 Year Completed estimated (2014-2015).
Gilroy, CA
Santa Clara Co.
United States 		Loma Ranch St. / W 10th St.
(36.98989, -121.58674) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
San Anselmo, CA
Marin Co.
United States 		San Francisco Blvd. / Santa Cruz Ave.
(37.98566, -122.56572) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
12.1920 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2019 Painted splitter islands. Year Completed estimated (2018-2019).
Los Angeles, CA
Los Angeles Co.
United States 		MIssion Rd. / Myers St. / Jesse St.
(34.03637, -118.22567) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2023 https://la.streetsblog.org/2023/12/19/eyes-on-the-street-boyle-heights-myers-mission-roundabout-completed-short-bike-paths-open