Roundabouts Database

28965 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
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) 		2023 Rotor turbo roundabout. Opened December 2023. 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).
Truckee, CA
Nevada Co.
United States 		Donner Pass Rd. / Cold Stream Rd. / I-80 EB Ramps
(39.32359, -120.22747) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2021
Stockton, CA
San Joaquin Co.
United States 		E Miner Ave. / N San Joaquin St.
(37.95611, -121.28804) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2021 Bicycle lanes leading into roundabout with bicycle sharrows on outer edge of circulatory roadway beyond each entry. https://twitter.com/stocktonupdates/status/1407046118156947458
Santa Clara, CA
Santa Clara Co.
United States 		(shopping center entrance) / (parking)
(37.35667, -121.93755) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.2880 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2022 https://www.svvoice.com/coleman-costco-installing-roundabout/
Truckee, CA
Nevada Co.
United States 		Cold Creek Cir. / Summer Camp Way
(39.32143, -120.22793) 		Unknown
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Woodland, CA
Yolo Co.
United States 		Road 25A / Parkland Ave.
(38.64099, -121.74450) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2020
Woodland, CA
Yolo Co.
United States 		Road 25A / Miekle Ave.
(38.64078, -121.73624) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2021 Year Completed estimated (2020-2021).
Woodland, CA
Yolo Co.
United States 		Hunt St. / Heritage Pkwy.
(38.64945, -121.74580) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2020).
Avila Beach, CA
San Luis Obispo Co.
United States 		Avila Beach Dr. / Palisades Rd. / US 101 SB Ramps
(35.17977, -120.70042) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
44.1960 		Freeway Ramps (Grade-Separated)
Single-Lane 		Anticipated opening in fall of 2024.
Santa Barbara, CA
Santa Barbara Co.
United States 		Olive Mill Rd. / Coast Village Rd. / N Jameson Ln. / US 101 Ramps
(34.42156, -119.63993) 		Roundabout
Unknown 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
46.3296 		Freeway Ramps (Grade-Separated)
Single-Lane 		Anticipated opening in fall 2025.
Montecito, CA
Santa Barbara Co.
United States 		San Ysidro Rd. / N Jameson Ln. / US 101 NB Ramps
(34.42287, -119.63152) 		Roundabout
Unknown 		Unknown
Unknown 		5 Approaches
0 Driveways
53.6445 		Freeway Ramps (Grade-Separated)
Single-Lane 		This is an unique kidney shaped single-lane roundabout (approx. varying ICD 176' x 116'). Anticipated opening in fall 2025.
San Juan Bautista, CA
San Benito Co.
United States 		SR 156 (San Juan Hollister Rd.) / Bixby Rd.
(36.84096, -121.49042) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
68.2749 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		ICD 224 ft x 211 ft. Anticipated opening year in 2025.
Castroville, CA
Monterey Co.
United States 		(unknown) / SR 156 EB Ramps
(36.76908, -121.73823) 		Roundabout
Unknown 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
41.7573 		Freeway Ramps (Grade-Separated)
Single-Lane 		Anticipated opening year 2025. Future 3rd leg is planned to connect to BlackieRd.
Castroville, CA
Monterey Co.
United States 		(unknown) / SR 156 WB Ramps
(36.77058, -121.73771) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
53.3400 		Freeway Ramps (Grade-Separated)
Single-Lane 		Anticipated opening year 2025.
Castroville, CA
Monterey Co.
United States 		Castroville Blvd. / (unknown)
(36.77419, -121.74051) 		Roundabout
Unknown 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
49.3776 		Other (At-Grade)
Single-Lane 		Anticipated opening year 2025.
Fisherman Flats, CA
Monterey Co.
United States 		SR 68 / Josselyn Canyon Rd.
(36.58359, -121.85655) 		Roundabout
Unknown 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
46.7868 		Other (At-Grade)
Single-Lane 		Anticipated opening year 2029.
Monterey, CA
Monterey Co.
United States 		SR 68 / Olmsted Rd.
(36.58399, -121.84976) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
46.6344 		Other (At-Grade)
Single-Lane 		Anticipated opening year 2029.
Del Rey Oaks, CA
Monterey Co.
United States 		SR 68 / Canyon del Rey Blvd. / Monterra Rd.
(36.58090, -121.82797) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
52.5780 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		Anticipated opening year 2029.
Monterey, CA
Monterey Co.
United States 		SR 68 / York Rd.
(36.57156, -121.80839) 		Roundabout
Unknown 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
46.7868 		Other (At-Grade)
Single-Lane 		Anticipated opening year 2029.
Salinas, CA
Monterey Co.
United States 		SR 68 ./ Pasadera Dr. / Boots Rd.
(36.56766, -121.77857) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
46.9087 		Other (At-Grade)
Single-Lane 		Anticipated opening year 2029.
Salinas, CA
Monterey Co.
United States 		SR 68 / Laureles Grade Rd.
(36.56964, -121.75566) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
46.5427 		Other (At-Grade)
Single-Lane 		Future 4th leg connects to Laguna Seca Entrance. Anticipated opening year 2029.
Salinas, CA
Monterey Co.
United States 		SR 68 / Corral de Tierra Rd. / Cypress Church Dr.
(36.57854, -121.72709) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
46.1772 		Other (At-Grade)
Single-Lane 		Oval shaped. ICD = 151.5 ft x 141.5 ft. Anticipated opening year 2029.
Salinas, CA
Monterey Co.
United States 		SR 68 / San Benancio Rd.
(36.57977, -121.72073) 		Roundabout
Unknown 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
45.2323 		Other (At-Grade)
Single-Lane 		Anticipated opening year 2029.
Templeton, CA
San Luis Obispo Co.
United States 		N Main St. / US 101 NB Ramps
(35.56543, -120.70151) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
56.0829 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		Oval shaped. ICD = 184 ft x 157 ft. Anticipated opening year 2030.
Templeton, CA
San Luis Obispo Co.
United States 		N Main St. / US 101 SB Ramps / Theatre Dr.
(35.56644, -120.70261) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
43.8909 		Freeway Ramps (Grade-Separated)
Single-Lane 		Anticipated opening year 2030.
Morro Bay, CA
San Luis Obispo Co.
United States 		Atascadero Rd. / US 101 NB Ramps / Main St.
(35.38023, -120.85489) 		Roundabout
Unknown 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
48.7680 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		Oval shaped. ICD = 160 ft x 130 ft. Anticipated opening year 2026.
Folsom, CA
Sacramento Co.
United States 		Grand Prairie Rd. / Rustic Ridge Dr.
(38.63617, -121.09165) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019).
Folsom, CA
Sacramento Co.
United States 		Grand Prairie Rd. / Rustic Ridge Dr. / Alder Creek Pkwy
(38.64059, -121.09212) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019).
Rocklin, CA
Placer Co.
United States 		Rocklin Rd. / Pacific St.
(38.79073, -121.23610) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2023 Yield-controlled right-turn bypass lanes on west and south legs; add-lane right-turn bypass lane on east leg. https://www.rocklin.ca.us/roundabout
Kingsburg, CA
Fresno Co.
United States 		S Bethel Ave. / E Conejo Ave. (Sierra St.)
(36.51795, -119.57532) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2022 Fire station in southeast quadrant. https://www.cityofkingsburg-ca.gov/DocumentCenter/View/1930/Kingsburg-Roundabout-4-1-22?bidId=
Berkeley, CA
Alameda Co.
United States 		University Ave. / Marina Blvd.
(37.86518, -122.31113) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2022 https://www.berkeleyside.org/2022/06/16/berkeley-marina-university-avenue-repaved
Encinitas, CA
San Diego Co.
United States 		North Coast Highway 101 / El Portal St.
(33.05666, -117.29828) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://www.encinitasca.gov/government/departments/engineering/capital-improvements/north-highway-101-projects
San Marcos, CA
San Diego Co.
United States 		N City Dr. / June Way
(33.13429, -117.16177) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2019 Yield-controlled right-turn bypass lanes on west and south legs. Year Completed estimated (2018-2019).
San Marcos, CA
San Diego Co.
United States 		N City Dr. / Campus Way
(33.13473, -117.15999) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2016
Vacaville, CA
Solano Co.
United States 		Carroll Way / Primrose Dr.
(38.34930, -121.92726) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2019-2020).
El Cerrito, CA
Contra Costa Co.
United States 		Lynn Ave. / Ramona Ave.
(37.90057, -122.29100) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
El Cerrito, CA
Contra Costa Co.
United States 		Lynn Ave. / Carmel Ave.
(37.90074, -122.29015) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Sacramento, CA
Sacramento Co.
United States 		New Market Dr. / Town Center Dr.
(38.65823, -121.52205) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
57.9120 		Other (At-Grade)
Single-Lane 		2002 Bike lane around circulatory roadway. East leg added 2019-2020.
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.
Madera, CA
Madera Co.
United States 		Root Creek Pkwy. W / Riverstone Blvd. SE
(36.91441, -119.80757) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2020).
Madera, CA
Madera Co.
United States 		Riverstone Blvd. SE / Market Ave. W
(36.91787, -119.80758) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2020).
Madera, CA
Madera Co.
United States 		Market Ave. W / Mission Dr.
(36.91788, -119.81209) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2020).
Madera, CA
Madera Co.
United States 		Riverstone Blvd. SW / Market Ave. W
(36.91791, -119.81547) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2020 Year Completed estimated (2018-2020).
Madera, CA
Madera Co.
United States 		Market Ave. W / Lodge Rd.
(36.91915, -119.80219) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2017
Madera, CA
Madera Co.
United States 		Root Creek Pkwy. W / Riverstone Blvd. SW
(36.90613, -119.81664) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 Year Completed estimated (2021-2022).
Woodlake, CA
Tulare Co.
United States 		E Sierra Ave. / Castle Rock St.
(36.42102, -119.08984) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2022
Jamestown, CA
Tuolumne Co.
United States 		SR 108 / People of the Mountain Rd. (MacKey Ranch Rd.) / Sierra Rock Rd.
(37.92569, -120.44641) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://www.uniondemocrat.com/news/local/article_c858c6e0-40ee-11ed-b07d-6b13ef882d63.html
Tracy, CA
San Joaquin Co.
United States 		W Byron Rd. / W Grant Line Rd.
(37.75831, -121.49221) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2018 Temporary installation using striping and raised dividers and barriers.
Lincoln, CA
Placer Co.
United States 		E Joiner Pkwy. / Fieldstone Dr.
(38.84770, -121.28659) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2022 Yield-controlled right-turn bypass lane on northwest leg. https://www.lincolnca.gov/en/our-government/east-joiner-parkway-widening-project.aspx
Rocklin, CA
Placer Co.
United States 		Whitney Ranch Pkwy. / W Oaks Blvd. / Songbird Way
(38.83190, -121.26676) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).