Roundabouts Database Index

29616 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
Pleasanton, CA Alameda Co. United States	Valley Ave. / E Gate Way (37.65487, -121.89530)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.3667	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Pleasanton, CA Alameda Co. United States	Valley Ave. / Oak Vista Way (37.65349, -121.89390)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4216	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Pleasanton, CA Alameda Co. United States	Valley Ave. / Pleasanton Ave. / Laguna Creek Ln. (37.65175, -121.89043)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2000
Lincoln, NE Lancaster Co. United States	Southwest High School (40.73830, -96.70326)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 25.3383	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Lincoln, NE Lancaster Co. United States	S 16th St. / Garret Ln. (40.73623, -96.69884)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 19.9093	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Woodbridge, VA Prince William Co. United States	Belmont Bay Dr. / Palisades St. (38.65612, -77.23753)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.4412	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Woodbridge, VA Prince William Co. United States	Belmont Bay Dr. / Course View Way (38.65403, -77.23640)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1826	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Huntsville, AL Madison Co. United States	Home Depot Access / Costco Access (34.74251, -86.60383)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 30.4236	Other (At-Grade) Single-Lane	2000	Year Completed estimated (1998-2002). ICD estimated from Google Maps linework.
Des Moines, IA Polk Co. United States	Gannett Ave. / Rittenhouse St. (41.52031, -93.65178)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 41.1341	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Fort Mill, SC York Co. United States	Assembly Dr. / First Baxter Crossing (35.02980, -80.96839)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.7889	Other (At-Grade) Single-Lane	2000	Year Completed estimated (1998-2002). ICD estimated from Google Maps linework.
Englewood, CO Arapahoe Co. United States	Englewood Pkwy. / S. Cherokee St. (39.65491, -104.99110)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 41.3782	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Escalon, CA San Joaquin Co. United States	1st Ave. / Riesling Way (37.79437, -121.01140)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 18.8755	Other (At-Grade) Single-Lane	2000	Painted splitter islands. ICD estimated from Google Maps linework.
Hayward, CA Alameda Co. United States	Orchard Ave. / Joyce St. (37.65808, -122.07850)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.9103	Other (At-Grade) Single-Lane	2000	Painted splitter islands. Built as temporary in February 2000, reconstructed permanent central island 2001 (http://ci.hayward.ca.us/citygov/meetings/cca/rp/2000/rp091900-05.pdf). ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Monte Vista Dr. East / W. 22nd St. (40.41451, -105.13180)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 24.5519	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Monte Vista Dr. West / W. 22nd St. (40.41449, -105.13290)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 26.3706	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	New Castle Dr. / Tabernash Dr. (40.42599, -105.12010)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 24.5477	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Valley Oak Dr. / Clearwater Dr. (40.44328, -105.02180)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 34.5398	Other (At-Grade) Single-Lane	2000	Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Parker, CO Douglas Co. United States	Main St. / (unknown) (39.51799, -104.75580)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 19.3480	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Durham, NC Durham Co. United States	Glendale Ave. / Washington St. (36.02251, -78.90046)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 34.7744	Other (At-Grade) Single-Lane	2000	Modified circle, part of I-85 detour route. ICD estimated from Google Maps linework.
New London, CT New London Co. United States	Shaw St. / Howard St. / Willets Ave. (41.34284, -72.09972)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.9700	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Kennewick, WA Benton Co. United States	27th Ave. / Union St. / Southridge Blvd / W Creekstone Dr. (46.18497, -119.18040)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.5168	Other (At-Grade) Single-Lane	2000	Completed August 25, 2000. Right-turn bypass on WB approach. Was 3-leg intersection; fourth leg added to west as part of project. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Kingston, NY Ulster Co. United States	I-587 / Rte 28 / I-87 Ramps / Washington Ave. (41.94362, -74.02840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max)	2000	A 600 ft diameter traffic circle was replaced by 200 ft diameter roundabout. At Exit 19 from I-87. I-587 terminates in roundabout.
Provo, UT Utah Co. United States	Riverside Ave. / W 1720 North (40.25703, -111.66810)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.8749	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	E. Cotton Center Blvd. / S. 44th Pl. (33.40279, -111.98790)	Other Existing	Unknown Unknown	0 Approaches 0 Driveways 163.5163	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	Pointe Pkwy. / S 48th St. (33.37162, -111.97410)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Multilane (2 Lane, unspecified)	2000
Columbia, MD Howard Co. United States	Golden Straw Ln. / Davis Rd. (39.21597, -76.81084)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-lane w/ Traversable Central Island	2000	Completed April 28, 2000. Pedestrian ramps into circulatory roadway.
Hutchinson, KS Reno Co. United States	23rd Ave. / Severence St. (38.07940, -97.91340)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.7846	Other (At-Grade) Single-Lane	2000	Near the state fairgrounds in Hutchinson Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Manhattan, KS Riley Co. United States	Kimball Ave. / Grand Mere Pkwy. (39.20168, -96.63786)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.3931	Other (At-Grade) Single-Lane	2000	Completed 3/2000. Built as part of new Colbert Hills Golf Course. Fatal crash January 31, 2010. 11861-05. Functional Class: Collector ICD estimated from Google Maps linework.
Bend, OR Deschutes Co. United States	NW Mt. Washington Dr. / Shevlin Park Rd. (44.06780, -121.35530)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.7584	Other (At-Grade) Single-Lane	2000	South leg on Mt. Washington Drive added as part of new development. ICD estimated from Google Maps linework.
Bend, OR Deschutes Co. United States	NW Mt. Washington Dr. / NW Crossing Dr. (44.05890, -121.35670)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.6144	Other (At-Grade) Single-Lane	2000	Both roadways brand new as part of new development. ICD estimated from Google Maps linework.
Federal Way, WA King Co. United States	Weyerhaeuser Way S / 33rd Pl S / 32nd Dr. S (47.29863, -122.29280)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.6385	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	Opened April 2000. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Lewisville, NC Forsyth Co. United States	Concord Church Rd. / US 421 SB Ramp / Williams Rd. (36.08978, -80.43072)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.9191	Freeway Ramps (Grade-Separated) Single-Lane	2000	Solved capacity problem. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Olathe, KS Johnson Co. United States	Sheridan Rd. / Rogers Rd. (38.87200, -94.79430)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.7027	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	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)
Parkville, MO Platte Co. United States	MO 45 (Tom Watson Pkwy.) / National Dr. (39.21016, -94.70027)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.1210	Other (At-Grade) Single-Lane	2000	Functional Class: Arterial ICD estimated from Google Maps linework.
Park City, UT Summit Co. United States	Rte 224 (Deer Valley Drive) / Heber Avenue / Marsac Avenue (40.64572, -111.49500)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 46.2161	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	See: www.Roundaboutsusa.com Information as reported in Salt Lake Tribune article: http://www.sltrib.com/2000/Sep/09142000/utah/22072.htm Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV Clark Co. United States	Havenwood Ave. / Desert Marigold Ln. / Navajo Willow Ln. (36.13360, -115.32110)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.5483	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	Functional Class: Collector. Year Completed estimated (1999-2002). ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	N. 64th St. / E. Lafayette Blvd. (33.49474, -111.94330)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.9119	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Brunswick, MD Frederick Co. United States	MD 17 / A St. / B St. / Maryland Ave. (39.31433, -77.62807)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 42.5054	Other (At-Grade) Single-Lane	2000	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.
Topeka, KS Shawnee Co. United States	Rice Rd. / I-70 WB Ramps / Sycamore Dr. (39.03610, -95.62310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.5293	Freeway Ramps (Grade-Separated) Single-Lane	2000	Part of a major realignment of I-70 and K-4. Sycamore Drive is one way with two westbound lanes (into the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework.
Topeka, KS Shawnee Co. United States	Rice Rd. / I-70 EB Ramps / Cyprus Drive (39.03190, -95.62320)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.8817	Freeway Ramps (Grade-Separated) Single-Lane	2000	Part of a major realignment of I-70 and K-4. Cyprus Drive is One Way Eastbound (away from the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	I-5 NB Off-Ramp / Galaxy Dr. / Quinault Dr. (47.06127, -122.76890)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.5438	Other (At-Grade) Single-Lane	2000	Completed November 1, 2000. ICD estimated from Google Maps linework.
Urbana, MD Frederick Co. United States	Sugarloaf Pkwy. / Denison St. (39.33490, -77.34180)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 36.9503	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Urbana, MD Frederick Co. United States	MD 355 / Sugarloaf Pkwy. (39.32862, -77.35193)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.8013	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Urbana, MD Frederick Co. United States	MD 355 / Sprigg St. (39.33070, -77.35654)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.4954	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Urbana, MD Frederick Co. United States	Bush Creek Dr. / Major Smith Ln. (39.33507, -77.35263)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.6364	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Federal Way, WA King Co. United States	S 323rd St. / 32nd Ave. S (47.31214, -122.29250)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.5368	Other (At-Grade) Single-Lane	2000	Opened April 2000. ICD estimated from Google Maps linework.
Urbana, MD Frederick Co. United States	Bennett Creek Ave. / Bennett Creek Rd. (39.32223, -77.35181)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.2613	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Pine Manor Dr. / Stoneglen Dr. (38.96827, -104.76670)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 26.9289	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Urbana, MD Frederick Co. United States	Bennett Creek Ave. / Bennett Creek Blvd. (39.32256, -77.34935)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.8808	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	Marvin Rd. NE / Main St. NE (47.06709, -122.76828)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 48.7680	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	Roundabout installed, although cross street not initially constructed.
New London, CT New London Co. United States	Shaw St. / Pequot Ave. / Nameaug St. / Driveway to Pfizer (41.34204, -72.09873)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8671	Other (At-Grade) Single-Lane	2000	Functional Class: Collector ICD estimated from Google Maps linework.
Hilton Head, SC Beaufort Co. United States	US 278 / Pope Ave. / Greenwood Dr. / William Hilton Pkwy. (32.15560, -80.76283)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 91.0011	Other (At-Grade) Single-Lane	2000	Converted rotary with large diameter. Right turn bypass lanes on all legs. Conversion Year Completed estimated (1994-2005). ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	NE Mt. Hood Ave. / Frontage Rd. / PDX Airport Economy Blue Lot / PDX Airport Economy Red Lot (45.57770, -122.55950)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.7822	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
North Harford, MD Harford Co. United States	MD 165 / MD 24 (39.67220, -76.40930)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.1750	Other (At-Grade) Single-Lane	2000	Rural Previously controlled by two-way stop ICD estimated from Google Maps linework.
Provo, UT Utah Co. United States	200 West (Freedom Blvd.) / 920 South (40.22177, -111.66230)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.5341	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Park City, UT Summit Co. United States	Powderwood Dr. / Factory Outlet Parking (40.72733, -111.55255)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 24.4374	Other (At-Grade) Single-Lane	2000	Pedestrian access to central island. ICD estimated from Google Maps linework.
Park City, UT Summit Co. United States	Kilby Rd. / Factory Outlet Parking (40.73040, -111.55040)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.3918	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Orem, UT Utah Co. United States	1200 South / 400 West (40.27531, -111.70480)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 30.9811	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Bainbridge Island, WA Kitsap Co. United States	High School Rd. / Madison Ave. (47.63579, -122.52100)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.9484	Other (At-Grade) Single-Lane	2000	Greatly reduced congestion. Initial public opposition has turned to full support. Project located next to 3 schools. Separated sidewalks, timed yellow flashing lights during school crossing. Crossing guards. Near library and shopping center. Opened October 2000. ICD estimated from Google Maps linework.
Urbana, MD Frederick Co. United States	MD 80 / Sugarloaf Pkwy. / Bennett Creek Blvd. (39.32467, -77.34974)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.6619	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	Rural ICD estimated from Google Maps linework.
Tooele, UT Tooele Co. United States	W 2000 N / N 70 W (40.56555, -112.30310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.1987	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	Marvin Rd. / Britton Pkwy. (47.06905, -122.77090)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.3682	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	Completed September 14, 2000. Functional Class: Arterial ICD estimated from Google Maps linework.
Okemos, MI Ingham Co. United States	Hamilton Rd. / Marsh Rd. (42.71625, -84.42687)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.8350	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Frisco, CO Summit Co. United States	SH 9 / I-70 WB Ramps (39.59339, -106.09700)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 34.0524	Freeway Ramps (Grade-Separated) Single-Lane	2000	Highway ref. pt. 70-202.35. ICD estimated from Google Maps linework.
Aspen, CO Pitkin Co. United States	SR 82 / Maroon Creek Rd. / Castle Creek Rd. (39.19557, -106.84025)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, unspecified)	2000
Greenwood Village, CO Arapahoe Co. United States	Peoria St. / Cherry Creek Dr. (39.61015, -104.84800)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.7631	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	Jefferson County Pkwy. / Civic Center (39.72717, -105.19940)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.9051	Other (At-Grade) Single-Lane	2000	Feeds parking lot ICD estimated from Google Maps linework.
Boynton Beach, FL Palm Beach Co. United States	Hagen Ranch Rd. / Gateway Blvd. / Aberdeen Lakes Rd. (26.54660, -80.16390)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.5051	Other (At-Grade) Single-Lane	2000	Date estimated. ICD estimated from Google Maps linework.
Boynton Beach, FL Palm Beach Co. United States	Hagen Ranch Rd. / Le Chalet Blvd. (26.55650, -80.15710)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.2298	Other (At-Grade) Single-Lane	2000	Date estimated. ICD estimated from Google Maps linework.
University Place, WA Pierce Co. United States	Grandview Dr. / 56th St. W (47.20565, -122.56890)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.3417	Other (At-Grade) Single-Lane	2000	Opened September 2000. ICD estimated from Google Maps linework.
University Place, WA Pierce Co. United States	Grandview Dr. / 62nd Ct. W / Park Entrance (47.20033, -122.56890)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.7785	Other (At-Grade) Single-Lane	2000	Opened September 2000. ICD estimated from Google Maps linework.
University Place, WA Pierce Co. United States	Grandview Dr. / Bristonwood Dr. / 48th St. W (47.21334, -122.56880)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9607	Other (At-Grade) Single-Lane	2000	Opened September 2000. ICD estimated from Google Maps linework.
University Place, WA Pierce Co. United States	Grandview Dr. / Cirque Dr. (47.21093, -122.56880)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.1506	Other (At-Grade) Single-Lane	2000	Opened September 2000. ICD estimated from Google Maps linework.
Kemptville, ON United Counties of Leeds and Grenville Canada	CR 43 / Rideau River Rd. (45.02990, -75.63668)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2000	Year Completed estimated (before 2004). ICD estimated from Google Maps linework.
Ladera Ranch, CA Orange Co. United States	O'Neill Dr. / Benjamin Dr. (33.57070, -117.63860)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.8341	Other (At-Grade) Single-Lane	2000	http://www.ocregister.com/ocregister/news/local/communities/ladera/article_1584236.php. Date estimated. Functional Class: Collector ICD estimated from Google Maps linework.
Ladysmith, BC Vancouver Island Regional District Canada	1st Ave. / Symonds St. (48.99727, -123.82330)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4258	Other (At-Grade) Single-Lane	2000	First roundabout in British Columbia. Sponsored by ICBC. http://www.sustainability.ca/Docs/Transportation%20Case%20Studies-%20Technical%20Engineering%20Solutions.pdf?CFID=1123696&CFTOKEN=10586703 ICD estimated from Google Maps linework.
Brighton, MI Livingston Co. United States	Main St. / S 3rd St. (42.52942, -83.78761)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.1233	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Rochester, MN Olmstead Co. United States	Fox Valley Dr. / Fox Knoll Dr. SW (44.00954, -92.50074)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7826	Other (At-Grade) Single-Lane	2000	Previously controlled by new Functional Class: Local ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	S. Allison Pkwy. / W. Virginia Ave. (39.70705, -105.08390)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways 33.9964	Other (At-Grade) Single-Lane	2000	Functional Class: Local ICD estimated from Google Maps linework.
Honolulu, HI Oahu Co. United States	Likini St. / Ala Ilima St. / Ala Lilikoi St. (21.35054, -157.91460)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.4720	Other (At-Grade) Single-Lane	2000	Roundabout is 500 ft from Salt Lake Elementary School. http://starbulletin.com/2000/02/28/news/story9.html ICD estimated from Google Maps linework.
Calgary, AB Calgary Region Canada	McKenzie Towne Blvd. / McKenzie Towne Gt. / Prestwick Blvd. / Inverness Gt. (50.91650, -113.96430)	Roundabout Existing	All-Way Yield None	5 Approaches 1 Driveways 80.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	Fire station has direct access to circulatory roadway. Year Completed estimated (before 2002).
Rochester, MN Olmsted Co. United States	College Dr. SE / College Pkwy. SE (north) (44.01949, -92.42918)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Single-Lane	2000
Rochester, MN Olmsted Co. United States	UCR Dr. SE / Ucr Pkwy SE (south) (44.01538, -92.43011)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.3809	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Howard, WI Brown Co. United States	Belmont Rd. / Belle Plane Rd. (44.58361, -88.09459)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.9671	Other (At-Grade) Single-Lane	2000	Roundabout was constructed in center of residential subdivision south of Lineville Road. Roundabout is slightly smaller than the Lineville roundabouts. Completed August 2000. http://www.co.brown.wi.us/Planning/roundabouts.html Functional Class: Local ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Rockhurst Blvd. / Montebello Dr. (38.90582, -104.78980)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 20.4468	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Knightdale, NC Wake Co. United States	Maplewood Dr. / McKnight Dr. (35.79656, -78.48228)	Other Existing	All-Way Yield None	2 Approaches 0 Driveways 33.9052	Other (At-Grade) Single-Lane	2000	Functional Class: Collector ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Brainard Dr. / Squirreltail Dr. (38.96376, -104.74410)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.2161	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Aiken, SC Aiken Co. United States	E Gate Dr. / Aiken Mall Dr. SW / (parking lot) (33.51065, -81.71479)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.8785	Other (At-Grade) Single-Lane	2000	Channelized right-turn lanes on all legs. No Left Turn signs under Yield signs. Year Completed estimated (1994-2005). ICD estimated from Google Maps linework.
Aurora, CO Arapahoe Co. United States	S Old Tom Morris Rd. / Catawba Cir. / (golf course parking lot) (39.68629, -104.70910)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.0875	Other (At-Grade) Single-Lane	2000	Windmill in central island. Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Bluffton, SC Beaufort Co. United States	Bridgewater Dr. / Parkside Dr. (32.27840, -80.90985)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.4295	Other (At-Grade) Single-Lane	2000	Year Completed estimated (1994-2005). ICD estimated from Google Maps linework.
Vaughan, ON York Canada	Cranston Park Ave. / Melville Ave. / Drummond Dr. (43.86528, -79.52939)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.8598	Other (At-Grade) Single-Lane	2000	Year Completed estimated (before 2002). ICD estimated from Google Maps linework.
St Catharines, ON Niagara Canada	Suzanne Rochon-Burnett Circle (University Rd. E / Greenhouse Ln. / Ray Woodfield Dr. / John McDonald St.) (43.12007, -79.24428)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.0000	Other (At-Grade) Single-Lane	2000	Initial completion estimated (before 2003). Modified approximately 2003-2007 to realign University Road leg. ICD estimated from Google Maps linework. 21442
Knoxville, TN Knox Co. United States	Gleason Dr. SW / Wellsley Park Rd. SW (35.92329, -84.02883)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.3914	Other (At-Grade) Single-Lane	2000	Year Completed estimated (1997-2002). Original two-lane circulatory roadway with concentric lane line. Striped out inner lane of circulatory roadway to make single-lane around 2014-2016. ICD estimated from Google Maps linework.
Saguenay, QC Saguenay Canada	Boulevard du Saguenay / Rue Moissan / Rue Oersted / Boulevard Mellon (48.43281, -71.17983)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 31.6974	Other (At-Grade) Single-Lane	2000	Year Completed estimated (before 2005). ICD estimated from Google Maps linework.
Chambly, QC La Vallée-du-Richelieu Regional County Municipality Canada	Avenue Bourgogne / Avenue de Salaberry / Rue Martel (45.44894, -73.29059)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1362	Other (At-Grade) Single-Lane	2000	Year Completed estimated (before 2009). ICD estimated from Google Maps linework.
Sykesville, MD Carroll Co. United States	Old Washington Rd. (MD 97) / W Old Liberty Rd. (39.42906, -77.00755)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.1330	Other (At-Grade) Single-Lane	2000	Year Completed estimated (1995-2005). ICD estimated from Google Maps linework.
Mount Pleasant, SC Charleston Co. United States	Park West Blvd. / Queensgate Way (32.89109, -79.78477)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 59.1701	Other (At-Grade) Single-Lane	2000	Year Completed estimated (1999-2002). ICD estimated from Google Maps linework.
Clovis, CA Fresno Co. United States	Deauville Cir. / Armstrong Ave. (36.86322, -119.67286)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 58.2883	Other (At-Grade) Single-Lane	2000	Pedestrian crossing next to circulatory roadway. ICD estimated from Google Maps linework.