Roundabouts Database Index

29411 Results

Search by location, intersection, and comments with the Quick Search below. You can search all other attributes by clicking Advanced Search. Sort results by clicking the headers of any column. Click the Intersection name for a details and aerial view. Search results pages can be bookmarked. Results can be exported to KML for viewing in Google Earth.

City, State County Country	Intersection (Lat, Lng)	Type Status	Control Type / Other Control Type	Approaches / Driveways / ICD (m)	Functional Class / LaneType	Year Completed	Comments
Scottsdale, AZ Maricopa Co. United States	N. Marshall Way / E. 5th Ave. (33.49802, -111.92900)	Other Existing	All-Way Stop None	3 Approaches 0 Driveways 23.9030	Other (At-Grade) Single-Lane		Stop controlled. ICD estimated from Google Maps linework.
Prescott, AZ Yavapai Co. United States	SR 89 / Willow Lake Rd. (34.59233, -112.42580)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 64.0080	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2006
Bisbee, AZ Cochise Co. United States	Bisbee Rd. / SR 80 / SR 92 (31.42830, -109.89230)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 104.9686	Other (At-Grade) Single-Lane		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.
Windsor, CT Hartford Co. United States	Hayden Station Rd. / Lancaster Dr. / Center St. (41.89280, -72.63409)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.8935	Other (At-Grade) Single-Lane	1998	Functional Class: Collector. Year Completed estimated (1994-2003). ICD estimated from Google Maps linework.
Manhattan, KS Riley Co. United States	Gary Ave. / Candlewood Dr. (39.21087, -96.61885)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.2841	Other (At-Grade) Single-Lane	1997	Considered to be the First Modern Roundabout in the State of Kansas. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Oviedo, FL Seminole Co. United States	Franklin St. / Geneva Dr. / Division St. (28.67359, -81.20439)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 34.5795	Other (At-Grade) Single-Lane	2006	Website: http://www.cityofoviedo.net/files/Roundabouts.pdf ICD estimated from Google Maps linework.
Windsor, CT Hartford Co. United States	Hayden Station Rd. / Pond Rd. (41.89371, -72.64065)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 24.0041	Other (At-Grade) Single-Lane	1998	Functional Class: Collector. Year Completed estimated (1992-2003). ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV Clark Co. United States	Vista Run Dr. / Park Vista Dr. (36.17820, -115.34610)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.2741	Other (At-Grade) Single-Lane	1995	Year completed estimated (1990-1999) ICD estimated from Google Maps linework.
Windsor, CT Hartford Co. United States	Prospect Hill Rd. / Lang Rd. (41.89153, -72.69762)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 25.7830	Other (At-Grade) Single-Lane	1998	Located at entrance to industrial park. Year Completed estimated (1992-2004). ICD estimated from Google Maps linework.
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
Bend, OR Deschutes Co. United States	Brookswood Blvd. / Powers Rd. (44.02886, -121.32130)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.1961	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Anchorage, AK Anchorage United States	C St. / O'Malley EB Ramps (61.12273, -149.88630)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.3400	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)	2006
Anchorage, AK Anchorage United States	C St. / O'Malley WB Ramps (61.12404, -149.88630)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.3400	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2006
Litchfield Park, AZ Maricopa Co. United States	W. Palmilla Blvd. / W. Alvarado Dr. (33.46978, -112.35190)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 23.9107	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Moses Lake, WA Grant Co. United States	Yonezawa Blvd. / S. Division St. / W. Belmont Ave. (47.10438, -119.27860)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.0857	Other (At-Grade) Single-Lane	2001	Pedestrian crossing has z-shape, with exit closer to roundabout than entrance. Part of series of 3 roundabouts. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Plum Creek Dr. / Piney River Dr. (40.41253, -105.01850)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.0994	Other (At-Grade) Single-Lane	2001	Functional Class: Local ICD estimated from Google Maps linework.
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.
(unincorporated), OR Washington Co. United States	NW Verboort Rd. / Cornelius-Shefflin Rd. (45.55150, -123.06410)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 52.6900	Other (At-Grade) Single-Lane	2003	Reverse curves on approaches. Designed as multilane with striped-out inner circulating and entry/exit lanes. ICD estimated from Google Maps linework.
Lawrence, KS Douglas Co. United States	24th Pl. / Inverness Dr. (38.94105, -95.29808)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.0814	Other (At-Grade) Single-Lane	2001	Approved by Commission over neighborhood opposition. Was a 3 leg intersection prior to construction. Near Sunflower Elementary School and Southwest Junior High School. Functional Class: Collector ICD estimated from Google Maps linework.
Lawrence, KS Douglas Co. United States	24th Pl. / Crossgate Dr. (38.94130, -95.28875)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.9392	Other (At-Grade) Single-Lane	2001	Planned in connection with extention of 24th Place Functional Class: Collector ICD estimated from Google Maps linework.
Greeley, CO Weld Co. United States	Promontory Cir. / W 11th St. (40.41889, -104.84990)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.1960	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	4 roundabouts in series; 6 in vicinity.
Boynton Beach, FL Palm Beach Co. United States	Hagen Ranch Rd. / Majestic Palm Dr. / Palm Isles Dr. (26.53700, -80.16410)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.4660	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Peoria, AZ Maricopa Co. United States	N Sunrise Point / Sunset Point (33.75294, -112.33084)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 80.7720	Other (At-Grade) Single-Lane	2004
Greeley, CO Weld Co. United States	Promontory Cir. / W. 16th St. (40.41505, -104.85090)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	4 roundabouts in series; 6 in vicinity.
Greeley, CO Weld Co. United States	Promontory Cir. / Con Agra Dr. (40.41138, -104.85200)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	4 roundabouts in series; 6 in vicinity.
Boynton Beach, FL Palm Beach Co. United States	Hagen Ranch Rd. / Treviso Ln. (26.54100, -80.16380)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.6431	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Greeley, CO Weld Co. United States	Promontory Cir. / W 18th St. (40.40869, -104.85120)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6717	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	4 roundabouts in series; 6 in vicinity.
Phoenix, AZ Maricopa Co. United States	23rd Ave. / W. Osborn Rd. (33.48775, -112.10840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 15.9372	Other (At-Grade) Single-Lane	2005	Small roundabout. ICD estimated from Google Maps linework.
Greeley, CO Weld Co. United States	W 18th St. / Promontory Cir. / (parking) (40.41203, -104.85840)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	Part of 6 in vicinity.
Phoenix, AZ Maricopa Co. United States	E. Mountain View Rd. / N. Central Ave. (33.57510, -112.07360)	Traffic Calming Circle Existing	All-Way Yield None	0 Approaches 0 Driveways 16.9162	Other (At-Grade) Single-Lane	2006	Mini-roundabout 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.
Lawrence, KS Douglas Co. United States	Sunflower Park Rd / Inverness Dr (38.93745, -95.29810)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 111.4785	Other (At-Grade) Single-Lane	2001	Next to Sunflower Elementary School and Southwest Junior High School. Functional Class: Collector ICD estimated from Google Maps linework.
Greeley, CO Weld Co. United States	Promontory Cir. / W 16th St. / (parking) (40.41524, -104.85540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	Part of 6 in vicinity.
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.
Garnett, KS Harvey Co. United States	US 59 / US 169 (38.25832, -95.24861)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.8910	Other (At-Grade) Single-Lane	2006	None. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Newton, KS Harvey Co. United States	Broadway St. / I-135 Ramps (38.05000, -97.32250)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.1441	Freeway Ramps (Grade-Separated) Single-Lane	2003	Single-point interchange. Near roundabout interchange at I-135/1st Street. Roundabout completed January 2002, ramps from I-135 to the roundabout reopened March 2002. Eliptical structure incorporating both NB and SB ramps. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Lenexa, KS Johnson Co. United States	Prairie Star Pkwy / Montecello Rd. (38.95251, -94.84398)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.0123	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Functional Class: Arterial ICD estimated from Google Maps linework.
Paola, KS Miami Co. United States	K-68 / Old Kansas City Rd. / Hedge Ln. (38.62133, -94.85551)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 44.7895	Other (At-Grade) Single-Lane	2001	First roundabout on rural, high-speed facility in Kansas. Functional Class: Arterial ICD estimated from Google Maps linework.
Topeka, KS Shawnee Co. United States	46th St. / US 75 Ramps (39.12934, -95.71959)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 124.9680	Freeway Ramps (Grade-Separated) Single-Lane	2002	Roundabout under structure as part of single-point interchange. Elliptical shaped. ICD = 410 ft x 270 ft. Original intersection was at grade. Completed November 2002.
Phoenix, AZ Maricopa Co. United States	N. 43rd St. / E. Stanford Dr. (33.51700, -111.98930)	Traffic Calming Circle Existing	All-Way Yield None	0 Approaches 0 Driveways 46.7997	Other (At-Grade) Single-Lane	2005	Mini-roundabout ICD estimated from Google Maps linework.
Quebec, QC Capitale-Nationale Region Canada	Rue de la Rive-Boisee N / Rue du Baumier (46.83577, -71.32956)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane		No splitter islands. ICD estimated from Google Maps linework.
Bend, OR Deschutes Co. United States	NW Mt. Washington Dr. / NW Skyliners Rd. (44.05369, -121.35490)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.3425	Other (At-Grade) Single-Lane	2005	Roundabout constructed with addition of south leg. ICD estimated from Google Maps linework.
Bend, OR Deschutes Co. United States	NW Shevlin Park Rd. / Newport Ave. / College Way (44.06240, -121.33770)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.6125	Other (At-Grade) Single-Lane	2006	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.
Bend, OR Deschutes Co. United States	SW Century Dr. / SW Mt. Washington Dr. / SW Reed Market Dr. (44.03860, -121.33590)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.9120	Other (At-Grade) Single-Lane	2001	Roundabout sized for ultimate conversion to double lane.
Bend, OR Deschutes Co. United States	SW 14th St. / SW Century Dr. / SW Simpson Ave. (44.04790, -121.33160)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.9036	Other (At-Grade) Single-Lane	2002	Driveways located between crosswalk and circulatory roadway on both sides of west leg. ICD estimated from Google Maps linework.
Bend, OR Deschutes Co. United States	NW 14th St. / NW Galveston Ave. (44.05660, -121.33180)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.8991	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Bend, OR Deschutes Co. United States	NW 14th St. / Newport Ave. (44.06230, -121.33170)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.6126	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Bend, OR Deschutes Co. United States	NW 9th St. / NW Newport Ave. / NW Nashville Ave. (44.06240, -121.32450)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.6125	Other (At-Grade) Single-Lane	2005	Completed in August 2005. Intersection previously had five legs. Roundabout changes one leg prior to the roundabout to right in/out and redirects another leg to the roundabout. Located near Grade School on Newport Avenue. ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SW Terwilliger Blvd. / SW Palater Rd. (45.45290, -122.67660)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2002	Roundabout replaces existing Y-intersection, adds fourth leg to serve college law school. Includes driveway into roundabout serving two homes. Roundabout is on tilted plane with central island plane steeper than inscribed circle plane to manage cross slopes. Northeast leg (Palater Road) has 8-9 percent grade down into roundabout, then flattens using a short vertical curve to a zero percent crown at the top of the circulatory roadway. Maximum grade through the roundabout is 4 percent; maximum cross slope is -2 percent. First roundabout under City of Portland jurisdiction.
Anchorage, AK Anchorage United States	Dowling Rd. / New Seward Hwy SB Ramps (61.16636, -149.85780)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.1352	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2004	Previously controlled by one-way stop ICD estimated from Google Maps linework.
Anchorage, AK Anchorage United States	Dowling Rd. / New Seward Hwy NB Ramps (61.16637, -149.85520)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.0151	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2004	Spiral striping. ICD estimated from Google Maps linework.
Culloden, GA Monroe Co. United States	SR 7-US 341 / SR 74 (32.87954, -84.09019)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.1175	Other (At-Grade) Single-Lane	2008	Functional Class: Rural ICD estimated from Google Maps linework.
Bayfield, CO La Plata Co. United States	CR 501 / Bayfield Center Dr. (37.23393, -107.60191)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2001	Bayfield Center Drive is a new roadway. Completed Fall 2001.
Astoria, OR Clatsop Co. United States	US 101 / Hwy 202 (Nehalem Highway) (46.18290, -123.86070)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.4797	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Opened September 2002. First multilane roundabout on Oregon state highway system. ICD estimated from Google Maps linework.
Monroe, WA Snohomish Co. United States	SR 522 EB Ramps / 164th St. SE / Tester Rd. (47.84863, -122.00580)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 60.9143	Other (At-Grade) Multilane (2 Lane, unspecified)	2001	Completed August 2001. This project won the Washington State APWA 2001 Project of the Award and the ASCE Seattle Section 2001 Outstanding Project Award. The Project is documented in the Compendium of Papers for 2000 ITE District 6 Annual Meeting, San Diego, CA. Reconfiguration of two intersections into a roundabout. Previously controlled by two-way stop 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.
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.
Olathe, KS Johnson Co. United States	Sheridan Rd. / Ridgeview Rd. / Dennis Ave. (38.87270, -94.79730)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.3160	Other (At-Grade) Single-Lane	2001	Completed April 2001. ICD estimated from Google Maps linework.
Olathe, KS Johnson Co. United States	Sheridan Rd. / Clairborne Rd. (38.87020, -94.79250)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.3168	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
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.
Maplewood, MN Ramsey Co. United States	Kennard St. / Legacy Pkwy. (45.03317, -93.03062)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.1373	Other (At-Grade) Single-Lane	2004	Site has RT pavement arrows at entrance line. ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	Aviano Way / (unknown) (33.68941, -111.99350)	Rotary Existing	All-Way Yield None	0 Approaches 0 Driveways 79.4999	Other (At-Grade) Single-Lane		Mini-roundabout. Completed 2005. 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.
Clemmons, NC Forsyth Co. United States	Fraternity Church Rd. / Hope Church Rd. (36.02653, -80.34301)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.0113	Other (At-Grade) Single-Lane	1999	Existing three-legged intersection converted to a four-legged intersection by adding new Clemmons Middle School driveway at the roundabout. Previously controlled by one-way stop Functional Class: Local ICD estimated from Google Maps linework.
(unincorporated), CO Douglas Co. United States	Ridgegate Pkwy. / Ridgegate Cir. / Commons St. (39.53187, -104.88300)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.4267	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Part of transit-oriented development near future light-rail station ICD estimated from Google Maps linework.
(unincorporated), CO Douglas Co. United States	Ridgegate Pkwy. / Ridgegate Cir. / Park Meadows Blvd. (39.52945, -104.87450)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.3498	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Part of transit-oriented development near future light-rail station ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	S. Melon Ln. / W. Country Place Blvd. (33.41839, -112.27850)	Roundabout Existing	All-Way Yield None	2 Approaches 2 Driveways 23.9249	Other (At-Grade) Single-Lane	2004	Painted splitter islands. Functional Class: Local ICD estimated from Google Maps linework.
Lawrence, KS Douglas Co. United States	Monterey Way / Peterson Rd. (38.98607, -95.28841)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.8505	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Topeka, KS Shawnee Co. United States	Wanamaker Rd. / SW 6th Ave. (39.05662, -95.76134)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.7180	Other (At-Grade) Single-Lane	2004	Intersection expanded for new development. Previously T with 6th controlled by stop sign. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Topeka, KS Shawnee Co. United States	45th St. / Croco Rd. (38.98618, -95.61436)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.4174	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV Clark Co. United States	Town Center Dr. / Canyon Run Dr. / Banburry Cross Dr. (36.18080, -115.31370)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, unspecified)	1995	Completed March 1995. Modified 2003 to reduce from three-lane entries to two-lane entries with add-lane right-turn bypasses on all legs. 21442
Las Vegas (Summerlin), NV Clark Co. United States	Desert Primrose Ln. / Desert Marigold Ln. / Blue Willow Ln. (36.14060, -115.32090)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.5093	Other (At-Grade) Multilane (2 Lane, unspecified)	1999	Functional Class: Collector ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV Clark Co. United States	Desert Primrose Ln. / Spotted Leaf Ln. / Pavillion Center Dr. (36.14070, -115.33120)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.4737	Other (At-Grade) Multilane (2 Lane, unspecified)	1999	Functional Class: Collector ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV Clark Co. United States	Havenwood Ave. / Spotted Leaf Ln. / Golden Willow (36.13300, -115.33040)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.6194	Other (At-Grade) Multilane (2 Lane, unspecified)	1999	Functional Class: Collector 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.
Topeka, KS Shawnee Co. United States	SW 29th St. / Urish Rd. (39.01446, -95.78102)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2001	Completed July 2001 as single-lane roundabout. Retail shopping center on SW corner. Converted to partial double-lane roundabout 2010. 21442
Howard, WI Brown Co. United States	Lineville Rd. (CTH M) / Cardinal Ln. (CTH EB) (44.59090, -88.08430)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.7684	Other (At-Grade) Single-Lane	1999	Roundabout is near Forest Glen Elementary School, Lineville Intermediate School, and Bay Port High School. Completed October 1999. http://www.co.brown.wi.us/Planning/roundabouts.html Functional Class: Arterial ICD estimated from Google Maps linework.
Howard, WI Brown Co. United States	Lineville Rd. (CTH M) / Rockwell Ln. (44.59080, -88.08880)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.0674	Other (At-Grade) Single-Lane	1999	Roundabout is adjacent to Lineville Intermediate School, Middle School, and High School. School did not allow pedestrian crossings prior to roundabout due to unsafe conditions, now allows crossings using crossing guard. Completed October 1999. http://www.co.brown.wi.us/Planning/roundabouts.html Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	Princess Blvd. / Princess Dr. (33.64804, -111.91795)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 64.0077	Other (At-Grade) Multilane (2 Lane, 2x1 max)	1986	Painted spiral next to central island. Completed 1986. Reconfigured in 2007? 21442
Alpine, UT Utah Co. United States	Canyon Crest Rd. / 200 West (40.45012, -111.78150)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.3540	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Green Bay, WI Brown Co. United States	Mason St. (STH 32-STH 54) / S. Taylor St. (44.52414, -88.07916)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.4266	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework.
Green Bay, WI Brown Co. United States	Shawano Ave. (STH 29) / Taylor St. (44.53461, -88.07319)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.3783	Other (At-Grade) Multilane (3+ Lane)	2011	Opened September 2011. ICD estimated from Google Maps linework.
Draper, UT Salt Lake Co. United States	1300 E / Pioneer Rd. (40.52518, -111.85340)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.2210	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2001	ICD estimated from Google Maps linework. Constructed as single-lane in 2001. Updated to 2x1 in 2023. https://www.draperjournal.com/2023/09/07/464782/roundabout-reopens-early-with-revised-traffic-pattern
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.
Draper, UT Salt Lake Co. United States	300 East / 12200 South (40.52863, -111.88180)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.2193	Other (At-Grade) Single-Lane	2001	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.
Provo, UT Utah Co. United States	3700 North / 300 West (40.28282, -111.66310)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.2444	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Provo, UT Utah Co. United States	1375 West / 820 North (40.24470, -111.68280)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 28.2603	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Orem, UT Utah Co. United States	2000 South / Sandhill Rd. (40.26074, -111.70420)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.7220	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	Tabernacle Rd. / Main St. (37.10812, -113.58350)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.8119	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	E. Brigham Rd. / I-15 NB Ramps (37.05939, -113.58350)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.8889	Freeway Ramps (Grade-Separated) Single-Lane	2006	Raindrop-shaped interchange terminal. 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.
Rising Sun, MD Cecil Co. United States	MD 273 (Rising Sun Rd.) / MD 276 (Jacob Tome Memorial Hwy.) (39.69595, -76.08018)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.5157	Other (At-Grade) Single-Lane	2003	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.
Bel Air, MD Harford Co. United States	MD 7 / Holly Oaks Drive (39.48848, -76.21669)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.1039	Other (At-Grade) Single-Lane	1999	Opened September 1999. 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.