Roundabouts Database

29869 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
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
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
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.
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/
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).
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
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).
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.
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
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.
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
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.
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.
(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
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
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).
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).
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
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
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
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.
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
Napa, CA
Napa Co.
United States 		RiverSound Way / Kaiser Rd.
(38.25745, -122.27725) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2024
Napa, CA
Napa Co.
United States 		Soscol Ferry Rd. / SR 221 / SR 12 EB Ramps
(38.24117, -122.26975) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
47.2440 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2024 https://dot.ca.gov/caltrans-near-me/district-4/d4-projects/soscol-junction
Napa, CA
Napa Co.
United States 		SR 221 (Napa Vallejo Hwy.) / SR 12 WB Entrance Ramp
(38.24207, -122.26930) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
44.1960 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2024 https://dot.ca.gov/caltrans-near-me/district-4/d4-projects/soscol-junction
American Canyon, CA
Napa Co.
United States 		Devlin Rd. / Boone Dr. / (parking)
(38.20182, -122.26679) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2022
San Diego, CA
San Diego Co.
United States 		Foothill Blvd. / Loring St.
(32.80778, -117.24568) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2025 Oval shaped. ICD = 130 ft x 90 ft. https://www.roadsbridges.com/road-traffic-safety/news/55241846/san-diego-builds-roundabouts-to-improve-safety
Escondido, CA
San Diego Co.
United States 		E Grand Ave. / Kalmia St.
(33.12233, -117.08011) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2025 https://ols.escondido.org/CivicAlerts.aspx?AID=142
Dinuba, CA
Tulare Co.
United States 		S Alta Ave. (Road 80) / Kamm Ave. / Avenue 408
(36.53132, -119.39494) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2024 https://www.facebook.com/4Creeks/videos/were-thrilled-to-celebrate-the-completion-of-the-kamm-avenue-alta-avenue-roundab/902472428667758/
Palm Desert, CA
Riverside Co.
United States 		San Pablo Ave. / (unknown)
(33.73244, -116.38242) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.9184 		Other (At-Grade)
Single-Lane 		2022 Class 2 bicycle lanes striped through roundabout without raised curbs.
Palm Desert, CA
Riverside Co.
United States 		Magnesia Falls Dr. / San Pablo Ave.
(33.73603, -116.38246) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2022 Class 1 bicycle path crossing on west leg and Class 2 features all legs.
San Luis Obispo, CA
San Luis Obispo Co.
United States 		Buchon St. / Toro St.
(35.28003, -120.65481) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2024
San Diego, CA
San Diego Co.
United States 		Del Sol Blvd. / Kostner Dr.
(32.57352, -117.04353) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2024 https://www.facebook.com/CityofSanDiego/posts/the-roundabout-at-del-sol-blvd-and-kostner-dr-in-otay-mesa-is-complete-roundabou/977702851059733/
Bayside, CA
Humboldt Co.
United States 		Old Arcata Rd. / Jacoby Creek Rd.
(40.84252, -124.06404) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2024 https://www.madriverunion.com/articles/baysides-new-roundabout-works-wonderfully-well-thank-you-road-worke-rs/
San Diego, CA
San Diego Co.
United States 		Central Ave. / Landis St.
(32.74593, -117.10821) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
21.3360 		Other (At-Grade)
Single-Lane 		2022
San Diego, CA
San Diego Co.
United States 		Landis St. / 41st St.
(32.74591, -117.10699) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		2021 Painted splitter islands. https://www.facebook.com/story.php/?story_fbid=4970374723032587&id=1462392140497547
San Diego, CA
San Diego Co.
United States 		Landis St. / 42nd St.
(32.74588, -117.10452) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		2021 Painted splitter islands.
San Diego, CA
San Diego Co.
United States 		W Point Loma Blvd. / Bacon St. / Levee St.
(32.75330, -117.24549) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
19.8120 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2022 https://www.youtube.com/watch?v=PrXLfuEFHCE
San Diego, CA
San Diego Co.
United States 		Meade Ave. / Marlborough Ave.
(32.75707, -117.10613) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.3360 		Other (At-Grade)
Single-Lane 		2021 Painted splitter islands on north and south legs. Pedestrian crossings adjacent to circulatory roadway on east and south legs.
San Diego, CA
San Diego Co.
United States 		Meade Ave. / Central Ave.
(32.75713, -117.10825) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.3360 		Other (At-Grade)
Single-Lane 		2021 Painted splitter island on north leg. One-way street entrance on south leg.