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
Crescent City, CA
Del Norte Co.
United States 		Humboldt Rd. / Sand Mine Rd.
(41.74014, -124.15656) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
32.9735 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Redding, CA
Shasta Co.
United States 		Victor Ave. / Galaxy Way
(40.55114, -122.33645) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.7796 		Other (At-Grade)
Single-Lane 		2017 The roundabout is a hybrid with some features of a mini-roundabout but with other features of an urban compact roundabout. ICD estimated from Google Maps linework.
Redding, CA
Shasta Co.
United States 		Victor Ave. / Marlene Ave.
(40.55815, -122.33824) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.7773 		Other (At-Grade)
Single-Lane 		2017 The roundabout is a hybrid with some features of a mini-roundabout but with other features of an urban compact roundabout. ICD estimated from Google Maps linework.
Lancaster, CA
Los Angeles Co.
United States 		E Avenue L / Challenger Way
(34.66048, -118.11226) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.3833 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Goleta, CA
Santa Barbara Co.
United States 		N Los Carneros Rd. / Calle Real
(34.44023, -119.85286) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.5194 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Santa Maria, CA
Santa Barbara Co.
United States 		Hidden Pines Way / Cesar E Chavez Dr.
(34.98597, -120.44869) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.3551 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Santa Maria, CA
Santa Barbara Co.
United States 		Hidden Pines Way / Railroad Ave.
(34.98586, -120.44455) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.2692 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Los Angeles, CA
Los Angeles Co.
United States 		N San Fernando Rd. / N Figueroa St.
(34.08149, -118.22572) 		Roundabout
Existing 		All-Way Yield
Active Pedestrian Warning (flashing yellow) 		4 Approaches
0 Driveways
37.5893 		Unknown
Multilane (2 Lane, unspecified) 		2017 Estimated opening January or March 2017. ICD estimated from Google Maps linework.
Ceres, CA
Stanislaus Co.
United States 		North St. / 4th St.
(37.59167, -120.95337) 		Roundabout
Removed 		All-Way Yield
None 		4 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		2018 Originally constructed in 2004 as single-lane roundabout. Replaced with all-way stop in 2017-2018.
Ceres, CA
Stanislaus Co.
United States 		5th St. / Lawrence St.
(37.59013, -120.95220) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
23.6595 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
San Juan Capistrano, CA
Orange Co.
United States 		Valle Rd. / La Novia Ave. / I-5 NB Ramps
(33.48816, -117.66316) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.8231 		Freeway Ramps (Grade-Separated)
Single-Lane 		2017 Ramp meter on freeway on-ramp. ICD estimated from Google Maps linework.
Tracy, CA
San Joaquin Co.
United States 		N Central Ave. / 6th St.
(37.73473, -121.42576) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.1698 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Santa Cruz, CA
Santa Cruz Co.
United States 		Pacific Ave. / Beach St.
(36.96282, -122.02388) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling all approaches) 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2015 Railroad tracks cut through part of circle. Separated two-way bicycle lane/cycle track along south side of intersection.
Porterville, CA
Tulare Co.
United States 		SR 190 / Road 284
(36.04752, -118.93725) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.5573 		Other (At-Grade)
Single-Lane 		2016 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.
Woodlake, CA
Tulare Co.
United States 		Hwy 216 / Hwy 245
(36.41367, -119.09891) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.7564 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Santa Cruz, CA
Santa Cruz Co.
United States 		Pacific Ave. / Center St. / W. Cliff Dr.
(36.96490, -122.02620) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.4453 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Cupertino, CA
Santa Clara Co.
United States 		Cristo Rey Dr. / Hammond Way / Canyon Oak Way
(37.33058, -122.08070) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
36.0875 		Other (At-Grade)
Single-Lane 		2000 Functional Class: Local ICD estimated from Google Maps linework.
Redding, CA
Shasta Co.
United States 		Shasta View Dr. / Old Alturas Rd.
(40.58781, -122.32480) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.9073 		Other (At-Grade)
Single-Lane 		2010 Right-turn yield-controlled bypass lane in NW quadrant. ICD estimated from Google Maps linework.
Anderson, CA
Shasta Co.
United States 		Factory Outlets Dr. / I-5 NB Ramps / Locust St. / Deschutes Rd.
(40.43782, -122.28600) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.0869 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2013 Freeway off-ramp added with roundabout. Previously controlled by one-way stop ICD estimated from Google Maps linework.
San Diego, CA
San Diego Co.
United States 		49th St. / Adams Ave. / Euclid Ave. / Loraine Dr.
(32.76279, -117.08910) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
35.1516 		Other (At-Grade)
Single-Lane 		1999 Functional Class: Local ICD estimated from Google Maps linework.
Borrego Springs, CA
San Diego Co.
United States 		Borrego Springs Rd. / Palm Canyon Dr. / Sunset Rd. / Ave Nordeste / Ave Sureste
(33.25657, -116.37500) 		Other
Existing 		All-Way Yield
None 		7 Approaches
3 Driveways
147.8114 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Fort Bragg, CA
Mendocino Co.
United States 		Hwy 1 / Simpson Ln.
(39.41239, -123.80830) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
52.5958 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Lompoc, CA
Santa Barbara Co.
United States 		SR 246 / Purisima Rd.
(34.66456, -120.40790) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.2401 		Other (At-Grade)
Single-Lane 		2011 Yield-controlled right-turn bypass lane in northwest quadrant. ICD estimated from Google Maps linework.
Old Hopland, CA
Mendocino Co.
United States 		SR 175 / Old River Rd.
(38.97746, -123.09910) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
35.2816 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Truckee, CA
Nevada Co.
United States 		Donner Pass Rd. / Pioneer Trail Rd.
(39.33904, -120.17360) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.3378 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Truckee, CA
Nevada Co.
United States 		Hwy 89 / Prosser Dam Rd. / Alder Dr.
(39.34531, -120.17300) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.2574 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Carlsbad, CA
San Diego Co.
United States 		State St. / Carlsbad Blvd.
(33.16578, -117.35450) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.9933 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
(unincorporated), CA
Sonoma Co.
United States 		Arnold Dr. / Agua Caliente Rd.
(38.32045, -122.50220) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.8586 		Other (At-Grade)
Single-Lane 		2013 Completed 2013. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Chico, CA
Butte Co.
United States 		First St. / Salem St.
(39.72980, -121.84300) 		Other
Existing 		All-Way Yield
None 		2 Approaches
1 Driveways
18.3704 		Other (At-Grade)
Single-Lane 		2012 Hybrid mini-roundabout / "drop off circle" at major bike/ped entrance into Chico State University. Completed 2012. ICD estimated from Google Maps linework.
Chico, CA
Butte Co.
United States 		E 1st St. / E 2nd St. / Camelia Way
(39.73168, -121.83847) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2013 Designed in tandem with conversion of First and Second Streets to a one-way couplet. Completed 2013.
Nice, CA
Lake Co.
United States 		SR 20 / Pyle Rd.
(39.13028, -122.87111) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
40.7641 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Temecula, CA
Riverside Co.
United States 		Rancho California Rd. / Anza Rd.
(33.53401, -117.05592) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
39.8217 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Santa Ynez, CA
Santa Barbara Co.
United States 		SR 154 / SR 246 (Mission Dr.) / Armour Ranch Rd.
(34.61016, -120.05476) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		2015 Merging right-turn bypass lane on west leg. Yield-controlled right-turn bypass lane on north leg due to skew.
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
Vacaville, CA
Solano Co.
United States 		Vanden Rd. / Leisure Town Rd.
(38.31717, -121.94312) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2017 Added lane right-turn bypass lanes on west and south legs.
Monterey, CA
Monterey Co.
United States 		SR 68 / SR 1 SB Off-Ramp / 17 Mile Dr.
(36.57529, -121.91281) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2017
Monterey, CA
Monterey Co.
United States 		17 Mile Dr. / SR 1 SB On-Ramp
(36.57448, -121.91295) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
28.9560 		Freeway Ramps (Grade-Separated)
Single-Lane 		2017 Raindrop shape. Right-turn-only lane on west leg.
Lafayette, CA
Contra Costa Co.
United States 		Olympic Blvd. / Pleasant Hill Rd.
(37.88604, -122.09300) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2017 Yield-controlled right-turn bypass lanes on north and east legs. Painted splitter island on south leg.
Loomis, CA
Placer Co.
United States 		Rutherford Canyon Rd. / Montserrat Ln.
(38.78979, -121.18570) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.4440 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Loomis, CA
Placer Co.
United States 		Montserrat Ln. / Blackhawk Ct.
(38.78614, -121.18684) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2007
Rocklin, CA
Placer Co.
United States 		Rocklin Rd. / Meyers St.
(38.78852, -121.22915) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1684 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 ICD estimated from Google Maps linework.
Rocklin, CA
Placer Co.
United States 		Rocklin Rd. / S Grove St.
(38.78884, -121.23168) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Elliptical shaped. ICD = 150 ft x 125 ft.
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.
Redding, CA
Shasta Co.
United States 		Shasta View Dr. / Lemurian Rd.
(40.52218, -122.30641) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2016 Here is a link to a portion of the approved plans for the project: http://epayments.ci.redding.ca.us/RDM/Adrawing/26686.pdf
Redding, CA
Shasta Co.
United States 		Shasta St. / Almond Ave.
(40.58272, -122.40809) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2006
Redding, CA
Shasta Co.
United States 		Shasta St. / Olive Ave.
(40.58343, -122.40524) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-lane w/ Traversable Central Island 		2006
Anderson, CA
Shasta Co.
United States 		Pleasant Hills Dr. / Domaine Pl.
(40.42966, -122.29692) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.6377 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Anderson, CA
Shasta Co.
United States 		Pleasant Hills Dr. / (unknown)
(40.42415, -122.29962) 		Other
Existing 		Other
None 		3 Approaches
0 Driveways
29.0944 		Other (At-Grade)
Single-Lane 		2006 No control on entries. ICD estimated from Google Maps linework.
Anderson, CA
Shasta Co.
United States 		Pleasant Hills Dr. / (unknown 2)
(40.42248, -122.30084) 		Other
Existing 		Other
None 		3 Approaches
0 Driveways
30.9136 		Other (At-Grade)
Single-Lane 		2006 No control on entries. ICD estimated from Google Maps linework.
Redding, CA
Shasta Co.
United States 		Teton Dr. / Crescent Moon Dr. / Crescent Moon Ct.
(40.56422, -122.41552) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
23.5899 		Other (At-Grade)
Single-Lane 		1997 Year completed estimated (before 1998). Pedestrian ramps into circulatory roadway. ICD estimated from Google Maps linework.
Redding, CA
Shasta Co.
United States 		Madison River Dr. / Yellowstone Dr.
(40.54201, -122.31782) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2002 Year Completed estimated (1999-2004).
Redding, CA
Shasta Co.
United States 		Yellowstone Dr. / Western Oak Dr.
(40.54391, -122.31766) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
45.3790 		Other (At-Grade)
Single-Lane 		2002 Year Completed estimated (1999-2004). 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.
Santa Barbara, CA
Santa Barbara Co.
United States 		Milpas St. / US 101 NB Ramps / Carpinteria St.
(34.42073, -119.67765) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
62.4840 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2000 Oblong shaped. ICD = 250 ft x 125 ft. Completed April 2000. Experienced one single-vehicle fatality (date unknown). 11861-05.
Carlsbad, CA
San Diego Co.
United States 		Legoland Dr. / Armada Dr.
(33.13229, -117.31660) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		1999 Unstriped circulatory roadway.
Modesto, CA
Stanislaus Co.
United States 		Chandon Dr. / Calero Dr.
(37.67642, -120.93380) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4132 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Modesto, CA
Stanislaus Co.
United States 		Bowen Ave. / Fremont Ave.
(37.67470, -121.00260) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.9061 		Other (At-Grade)
Single-Lane 		2002 Previously controlled by twsc ICD estimated from Google Maps linework.
Santa Barbara, CA
Santa Barbara Co.
United States 		Alameda Padre Serra / Montecito St. / Salinas St. / Sycamore Canyon Rd.
(34.42903, -119.67720) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
1 Driveways
23.6427 		Other (At-Grade)
Single-Lane 		1992 Includes driveway into roundabout serving one home. ICD estimated from Google Maps linework.
Long Beach, CA
Los Angeles Co.
United States 		Los Alamitos Circle (Hwy. 1 / Lakewood Blvd. / Los Coyotes Diagonal)
(33.78989, -118.14250) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
137.1597 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1993 Traffic circle conversion. Modified in 2020 to reduce lanes. 21442
Berkeley, CA
Alameda Co.
United States 		Marin Ave. / Los Angeles Ave. / Del Norte St. / Arlington Ave.
(37.89015, -122.27240) 		Other
Existing 		One-Way/Two-Way Stop
None 		6 Approaches
0 Driveways
25.4489 		Other (At-Grade)
Single-Lane 		Free movement on Marin Ave.; rest are stop-controlled ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		Samoa Blvd. / Buttermilk Ln.
(40.85710, -124.07250) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.1329 		Other (At-Grade)
Single-Lane 		1999 Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		Guintoli Ln. / US 101 SB Ramps
(40.90400, -124.08920) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.7180 		Freeway Ramps (Grade-Separated)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		West End Rd. / Spear Ave. / Saint Louis Rd.
(40.88910, -124.08210) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.0866 		Other (At-Grade)
Single-Lane 		1998 Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		Samoa Blvd. / Union St.
(40.86140, -124.07730) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.2273 		Other (At-Grade)
Single-Lane 		1999 Functional Class: Arterial ICD estimated from Google Maps linework.
Visalia, CA
Tulare Co.
United States 		Houston Ave. / Santa Fe St. / NE 3rd Ave.
(36.34183, -119.28780) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
50.9874 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		Guintoli Ln. / US 101 NB Ramps
(40.90492, -124.08510) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.3015 		Freeway Ramps (Grade-Separated)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Modesto, CA
Stanislaus Co.
United States 		La Loma / James St. / G St.
(37.64360, -120.98740) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
34.0452 		Other (At-Grade)
Single-Lane 		1997 Permanent installation with landscaping in place Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Truckee, CA
Nevada Co.
United States 		Donner Pass Rd. / W. River St. / McIver Crossing
(39.32510, -120.19200) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.1077 		Other (At-Grade)
Single-Lane 		1998 Fatal crash. 11861-05. Functional Class: Arterial ICD estimated from Google Maps linework.
Orange, CA
Orange Co.
United States 		Chapman Ave. / Glassell St.
(33.78788, -117.85310) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
70.4752 		Other (At-Grade)
Single-Lane 		Old school traffic circle, pedestrian park in the middle, cars park along the sides. ICD estimated from Google Maps linework.
Claremont, CA
Los Angeles Co.
United States 		Indian Hill Blvd. / Bonita St.
(34.09662, -117.71930) 		Roundabout
Removed 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		2000 Temporary roundabout installed in August 1999, removed in April 2000. Strong public negative opinion cited as reason for removal. (Westernite, July-August 2000, pp. 2-3)
Truckee, CA
Nevada Co.
United States 		Brockway Rd. / Martis Valley Rd.
(39.32135, -120.16269) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2006
Arcata, CA
Humboldt Co.
United States 		12th St. / I St.
(40.87160, -124.08700) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
48.7687 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Anderson Rd. / Alvarado Ave.
(38.56210, -121.75850) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.2149 		Other (At-Grade)
Single-Lane 		1997 Moderate to high pedestrian and bicycle volume. Located in residential area frequented by commuters to University of California at Davis. ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		13th St. / J St.
(40.87260, -124.08780) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
11.7404 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Calabasas, CA
Los Angeles Co.
United States 		Parkway Calabasas / Camino Portal
(34.13878, -118.65890) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.6442 		Other (At-Grade)
Single-Lane 		2001 Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Originally double-lane roundabout. Parkway Calabasas approaches tapered to single-lane in advance of entry by striping. Functional Class: Arterial ICD estimated from Google Maps linework.
Encinitas, CA
San Diego Co.
United States 		Leucadia Blvd / Hermes Ave
(33.06482, -117.30010) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
18.0164 		Other (At-Grade)
Single-Lane 		2004 Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Encinitas, CA
San Diego Co.
United States 		Leucadia Blvd / Hymettus Ave
(33.06470, -117.29620) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
21.0192 		Other (At-Grade)
Single-Lane 		2004 Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		5th St. / Cantrill Dr.
(38.55160, -121.72010) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.9547 		Other (At-Grade)
Single-Lane 		1998 Police station on SW corner. Date estimated. ICD estimated from Google Maps linework.
Woodland, CA
Yolo Co.
United States 		Gum Ave. / Bourn Dr.
(38.66820, -121.74710) 		Roundabout
Removed 		All-Way Yield
None 		4 Approaches
0 Driveways
64.3428 		Other (At-Grade)
Single-Lane 		2008 Built as temporary in 2002. Temporary removed in 2008 and converted to AWSC. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Moore Blvd. / Rockwell Dr.
(38.56830, -121.72630) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.2127 		Other (At-Grade)
Single-Lane 		1999 Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Moore Blvd. / Wright Blvd.
(38.56490, -121.71860) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.2801 		Other (At-Grade)
Single-Lane 		1999 Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Chico, CA
Butte Co.
United States 		W. 8th Ave. / Greenwich Dr.
(39.73875, -121.86640) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.7968 		Other (At-Grade)
Single-Lane 		2005 Functional Class: Local ICD estimated from Google Maps linework.
Pleasanton, CA
Alameda Co.
United States 		Watermill Rd. / Albion Rd.
(37.76511, -121.90780) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
34.9336 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Pleasanton, CA
Alameda Co.
United States 		Watermill Rd. / Harcourt Way
(37.75982, -121.90820) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
34.9361 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Pleasanton, CA
Alameda Co.
United States 		Watermill Rd. / Watermill Rd.
(37.75548, -121.90970) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
31.1610 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
La Quinta, CA
Riverside Co.
United States 		Jefferson St. / Avenue 52
(33.67096, -116.26870) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.6860 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 RT bypass lanes on all legs. ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Waller St. / Steiner St.
(37.77097, -122.43190) 		Traffic Calming Circle
Existing 		All-Way Stop
None 		4 Approaches
0 Driveways
66.0853 		Other (At-Grade)
Single-Lane 		2003 Preliminary layout for neighborhodd comment Functional Class: Local ICD estimated from Google Maps linework.