Roundabouts Database Index

28820 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
Denali National Park, AK Denali National Park United States	Denali National Park (63.73358, -148.91550)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.3554	Other (At-Grade) Single-Lane	2002	Date estimated. ICD estimated from Google Maps linework.
Kennewick, WA Benton Co. United States	Grandridge Blvd. / Center Pkwy. (46.22032, -119.23220)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.5746	Other (At-Grade) Single-Lane	2006	Completed August 3, 2006. Functional Class: Collector ICD estimated from Google Maps linework.
Kennewick, WA Benton Co. United States	Gage Blvd. / Center Pkwy. (46.22710, -119.23120)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.6169	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Functional Class: Arterial ICD estimated from Google Maps linework.
Sioux Falls, SD Minnehaha Co. United States	Career Ave. / W Nobel St. (43.59985, -96.78073)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2008	Right-turn-only lane on north leg; added lane right-turn bypass lane on east leg. ICD estimated from Google Earth.
Rexburg, ID Madison Co. United States	2nd W. / 4th S. (43.81770, -111.78950)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.1941	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	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.
Charlotte, NC Mecklenburg Co. United States	E. 9th St. / N. Davidson St. (35.22668, -80.83273)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.9516	Other (At-Grade) Single-Lane	2006	Near elementary school. ICD estimated from Google Maps linework.
Modesto, CA Stanislaus Co. United States	Sylvan Ave. / Roselle Ave. (37.68896, -120.93980)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.2012	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Denver, CO Denver Co. United States	E. Lowry Blvd. / E Fairmount Dr. / Rampart Way (39.71718, -104.89580)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.6091	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Chapel Hills Dr. / Graycroft (38.97358, -104.78310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.7125	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Functional Class: Arterial ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	E. Cheyenne Mountain Blvd. / Springmeadow Dr. (38.79132, -104.82750)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 81.9191	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Lake Ave. / Berthie Cir. (38.79348, -104.83950)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 16.7557	Other (At-Grade) Single-Lane	1995	Year Completed unknown (before 1999). ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Lake Ave. / Old Broadmoor Rd. (38.79479, -104.83360)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.3405	Other (At-Grade) Single-Lane	1995	Year Completed unknown (before 1999). ICD estimated from Google Maps linework.
The Villages, FL Sumter Co. United States	Buena Vista Blvd. / Belvedere Blvd. (28.91778, -81.99953)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3161	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	ICD estimated from Google Maps linework.
The Villages, FL Sumter Co. United States	Morse Blvd. / El Camino Real / Paige Pl. (28.94803, -81.95540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 68.9771	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	ICD estimated from Google Maps linework.
Killingworth, CT Middledex Co. United States	Rte. 80 / Rte. 81 (41.35801, -72.56517)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	1997	First rotary modification in Connecticut. 21442
North Stonington, CT New London Co. United States	Rte 2 / Rte 184 (41.42439, -71.86039)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 103.6320	Other (At-Grade) Single-Lane		Yield signs added 1999?
Miami Springs, FL Miami-Dade Co. United States	DeSoto Dr. / Labaron Dr. (25.81180, -80.27770)	Traffic Calming Circle Existing	One-Way/Two-Way Stop None	4 Approaches 0 Driveways 36.5558	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
The Villages, FL Marion Co. United States	Buena Vista Blvd. / Mulberry Ln. (28.98078, -82.01563)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 70.0001	Other (At-Grade) Multilane (2 Lane, unspecified)	2001	ICD estimated from Google Maps linework.
The Villages, FL Marion Co. United States	Buena Vista Blvd. / Legacy Ln. (28.97006, -82.01506)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.3341	Other (At-Grade) Multilane (2 Lane, unspecified)	2001	ICD estimated from Google Maps linework.
The Villages, FL Marion Co. United States	Buena Vista Blvd. / Belle Meade Cir. (28.96300, -82.00399)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.3827	Other (At-Grade) Multilane (2 Lane, unspecified)	2001	ICD estimated from Google Maps linework.
The Villages, FL Sumter Co. United States	Buena Vista Blvd. / Glenview Rd. / El Camino Real (28.95271, -82.00076)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 71.0641	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	ICD estimated from Google Maps linework.
Miami Springs, FL Miami-Dade Co. United States	Pinecrest Dr. / South Dr. (25.81530, -80.28000)	Traffic Calming Circle Existing	One-Way/Two-Way Stop None	4 Approaches 0 Driveways 43.0055	Other (At-Grade) Single-Lane		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.
Oskaloosa, IA Mahaska Co. United States	Hwy 432 / Old Hwy 163 / Pella Ave. / Orchard Ave. (41.30376, -92.66716)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8882	Other (At-Grade) Single-Lane	2004	Completed April 2004. Site has sunken hole in central island with tunnels for bike path that passes under circulatory roadway. Experienced two single-vehicle crashes into sunken central island (alcohol-related). ICD estimated from Google Maps linework.
Newton, KS Harvey Co. United States	First St. / I-135 Ramps (38.04250, -97.32240)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 65.8419	Freeway Ramps (Grade-Separated) Single-Lane	2003	Single-point interchange. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Overland Park, KS Johnson Co. United States	W. 141st St. / Bluejacket St. (38.87130, -94.71130)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.6150	Other (At-Grade) Single-Lane	2001	Functional Class: Local ICD estimated from Google Maps linework.
Duxbury, MA Plymouth Co. United States	Lincoln St. / Congress St. (42.05532, -70.72294)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 21.2829	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
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.
Indianapolis, IN Marion Co. United States	Monument Circle [Market St. / Meridian St.] (39.76848, -86.15804)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Multilane (2 Lane, unspecified)	1820	Most famous traffic circle in the State of Indiana. Completed 1820.
Carmel, IN Hamilton Co. United States	Hazel Dell Pkwy. / E 126th St. (39.97119, -86.07069)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Multilane (2 Lane, 2x2 max)	1998
Carmel, IN Hamilton Co. United States	Hazel Dell Pkwy. / E 131st St. (39.97845, -86.07054)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Multilane (2 Lane, 2x2 max)	1998	Built in late 1990s.Converted to multilane 2010-2012. Right-turn-only lane on west leg; left-turn-only lane on east leg.
Carson City, NV Carson City Co. United States	Arrowhead Dr. / I-580 SB Ramp (39.19810, -119.77540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.7669	Freeway Ramps (Grade-Separated) Single-Lane	2002	Future SB on-ramp for Carson City Freeway (I-580). Overpass and roundabouts completed in 2002; freeway ramps completed ~2005. ICD estimated from Google Maps linework.
Carson City, NV Carson City Co. United States	Arrowhead Dr. / I-580 NB Ramps / Imus Rd. (39.19840, -119.77380)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.6923	Freeway Ramps (Grade-Separated) Single-Lane	2002	NB off-ramp for Carson City Freeway (I-580) and extension of Imus Road. Overpass and roundabouts completed in 2002. ICD estimated from Google Maps linework.
Medford, MN Steele Co. United States	CR 12 / I-35 NB Ramps (44.17349, -93.25775)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.6872	Other (At-Grade) Single-Lane	2002	Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
East Lansing, MI Ingham Co. United States	Wilson Rd. / Red Cedar Rd. (42.72324, -84.48238)	Other Removed	Unknown Unknown	4 Approaches 0 Driveways 23.6898	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Boulder, CO Boulder Co. United States	St. Johns St. / New Haven Ct. (Hampton Circle) (40.04742, -105.24740)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 25.5996	Other (At-Grade) Single-Lane	1997	ICD estimated from Google Maps linework.
Eagle, CO Eagle Co. United States	Eby Creek Rd. / US 6 (39.65630, -106.82500)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	4 Approaches 0 Driveways 40.4579	Other (At-Grade) Single-Lane	2001	Opened July 2001. Highway ref pt. 6-49.67. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Winchester, VA Frederick Co. United States	Commonwealth Ct. / (parking lot) (39.12518, -78.19009)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 28.7222	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Gypsum, CO Eagle Co. United States	I-70 Frontage Roads / US 6 (39.65086, -106.95510)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3351	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Swinomish Tribal Community, WA Skagit Co. United States	SR 20 / Padilla Heights Rd. (48.45519, -122.51940)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.2280	Other (At-Grade) Single-Lane	2002	The ground breaking ceremony was held October 2002. The client is the Swinomish Tribe. Opened October 2002. Functional Class: Local ICD estimated from Google Maps linework.
East Lansing, MI Ingham Co. United States	Bogue St. / Wilson Rd. (42.72326, -84.47186)	Other Removed	Unknown Unknown	4 Approaches 0 Driveways 36.8508	Other (At-Grade) Unknown		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.
Carmel, IN Hamilton Co. United States	River Rd. / East 131st St. / Longest Dr. (39.97910, -86.05145)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 79.2480	Other (At-Grade) Single-Lane	1997	First roundabout in Carmel.
Carmel, IN Hamilton Co. United States	Gray Rd. / 106th St. (39.94151, -86.08847)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.6277	Other (At-Grade) Single-Lane	2003	Under construction in December 2002; completed January 2003. Intersection closed until completion. Construction cost $430,000 per Indianapolis Star article authored by Bill Ruthhart (12/05/2002). Functional Class: Arterial ICD estimated from Google Maps linework.
Carmel, IN Hamilton Co. United States	Spring Mill Rd. / W. 131st St. (39.97776, -86.16474)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.2691	Other (At-Grade) Single-Lane	2007	Construction planned for Spring 2003 per article in The Indianapolis Star (12/05/2002). Functional Class: Arterial ICD estimated from Google Maps linework.
Carmel, IN Hamilton Co. United States	Spring Mill Rd. / W. 136th St. (39.98505, -86.16485)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.6893	Other (At-Grade) Single-Lane	2005	Construction planned for Spring 2003 per article in The Indianapolis Star (12/05/2002). Functional Class: Arterial ICD estimated from Google Maps linework.
Carmel, IN Hamilton Co. United States	Old Meridian St. / Pennsylvania St. (39.96796, -86.15526)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2008
Carmel, IN Hamilton Co. United States	Old Meridian St. / 131st (Main) St. (39.97806, -86.14577)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2007	Painted spirals next to central island. Skewed intersection.
Bettendorf, IA Scott Co. United States	53rd Ave. / Middle Rd. (41.57538, -90.46408)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.5252	Other (At-Grade) Single-Lane	2002	Right turn bypass lanes striped within roundabout. Construction cost ~$865,000. Information from website: http://www.bettendorf.lib.ia.us/publicworks/roundabout.html ICD estimated from Google Maps linework.
Johnson City, NY Broome Co. United States	Riverside Dr. / Floral Ave. / Rte 201 Ramps (42.10678, -75.96601)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, unspecified)	2005	http://www.dot.state.ny.us/reg/r9/cur_project/circle/about/index.html
Raleigh, NC Wake Co. United States	Pullen Rd. / Stinson Dr. (35.78457, -78.66421)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.3773	Other (At-Grade) Single-Lane	2002	Located on campus of North Carolina State University. Completed November 2002. Used to have Pedestrian signal located upstream of roundabout (removed in 2006) Previously controlled by one-way stop Functional Class: Local ICD estimated from Google Maps linework.
Lenexa, KS Johnson Co. United States	67th St. / Gleason Rd. (39.00723, -94.86295)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.3387	Other (At-Grade) Single-Lane	2002	Built as part of extension of both streets -- road originally curved from the north to the east. Completed October 2002. Functional Class: Collector ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Chapel Hills Dr. / Royal Pine Dr. (38.98067, -104.77060)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 26.9242	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Reno, NV Washoe Co. United States	Wedekind Rd. / Clear Acre Ln. (39.55157, -119.78930)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.0222	Other (At-Grade) Single-Lane	1999	Previously controlled by two-way stop ICD estimated from Google Maps linework.
Lake Oswego, OR Clackamas Co. United States	SW Stafford Rd. / SW Rosemont Rd. (45.39300, -122.69020)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.7740	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
(unincorporated), OR Clackamas Co. United States	SW Stafford Rd. / SW Borland Rd. (45.37472, -122.70240)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.6945	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	ICD estimated from Google Maps linework.
Carson City, NV Carson City Co. United States	E 5th St. / Fairview Dr. (39.16090, -119.72790)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	1999
Hinesville, GA Liberty Co. United States	Washington Ave. / Memorial Dr. (31.84992, -81.59570)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.5366	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Brookfield, WI Waukesha Co. United States	Barker Rd. (CTH Y) / North Ave. (CTH M) (43.06136, -88.16629)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.9042	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Functional Class: Arterial ICD estimated from Google Maps linework.
Maplewood, NJ Essex Co. United States	Midland Blvd. / Highland Ave. (40.73043, -74.25748)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 83.2644	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Maplewood, NJ Essex Co. United States	Midland Blvd. / Norfolk Ave. (40.73111, -74.25972)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 16.2907	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	E. Oak St. / N. 70th St. (33.47301, -111.93050)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.9249	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	22nd Ave. E / E Thomas St. (47.62138, -122.30360)	Traffic Calming Circle Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2006
Belmar, NJ Monmouth Co. United States	10th Ave. / B St. (40.17772, -74.01782)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Belmar, NJ Monmouth Co. United States	10th Ave. / D St. (40.17855, -74.02169)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Greenbelt, MD Prince Georges Co. United States	Hanover Pkwy. / Village Park Dr. / Schrom Hills Community Park entrance (38.98378, -76.87333)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.4960	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1994-2001). ICD estimated from Google Maps linework.
Superior, CO Boulder Co. United States	5th Ave. / Center Dr. (39.95764, -105.17190)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.1262	Other (At-Grade) Single-Lane	1999	Serves Costco and Target as part of 750,000 square foot shopping center. Functional Class: Local ICD estimated from Google Maps linework.
Windsor, CO Weld Co. United States	Westgate Dr. / Oakmond St. (40.48121, -104.98870)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2020	Year Completed estimated (2019-2021). Opened 1999-2004 as single-lane cul-de-sac with south leg and stubs on west and east legs and no evidence of traffic control; the outer portions of circulatory roadway were striped out. Converted to 2x1 roundabout 2019-2021 with addition of north leg.
Henrietta, NY Monroe Co. United States	Andrews Memorial Dr. / Lomb Memorial Dr. (43.08770, -77.67448)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 35.7614	Other (At-Grade) Single-Lane	2003	On campus of Rochester Institute of Technology. ICD estimated from Google Maps linework.
Linton Hall, VA Prince William Co. United States	Tartan Hills Pkwy. / Native Rocks Dr. / Seagate Way (38.74593, -77.58755)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1911	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
McPherson, KS McPherson Co. United States	E. 1st St. / Centennial Dr. (38.37671, -97.62996)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.3878	Other (At-Grade) Single-Lane	2005	Fatal crash January 20, 2010. ICD estimated from Google Maps linework.
Olathe, KS Johnson Co. United States	S. Ridgeview Rd. / E. Loula St. (38.88069, -94.79726)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 25.1027	Other (At-Grade) Single-Lane	2004	Completed August 2004. ICD estimated from Google Maps linework.
Overland Park, KS Johnson Co. United States	110th St. / Lamar Ave. (38.92910, -94.65830)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.3130	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Concrete paving. Adjacent to convention center. ICD estimated from Google Maps linework.
Overland Park, KS Johnson Co. United States	133rd St. / Lamar Ave. (38.88654, -94.65847)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.1862	Other (At-Grade) Single-Lane	2006	Completed May 2006. ICD estimated from Google Maps linework.
Springfield, OR Lane Co. United States	58th St. / Thurston Rd. (44.05320, -122.92640)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.7507	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Springfield, OR Lane Co. United States	Maple Island Rd. / International Way (44.08840, -123.03490)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.1668	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Bend, OR Deschutes Co. United States	SW Reed Market Dr. / SW Bond St. / SW Brookswood Blvd. (44.04047, -121.31678)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2003
Bend, OR Deschutes Co. United States	SW Reed Market Dr. / Mt. Bachelor Dr. (44.03830, -121.33340)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.2015	Other (At-Grade) Single-Lane	2002	Fourth leg was built with completion of new bridge over Deschutes River. ICD estimated from Google Maps linework.
Modesto, CA Stanislaus Co. United States	Sylvan Ave. / Millbrook Ave. (37.68898, -120.93520)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.3658	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Chico, CA Butte Co. United States	W. 8th Ave. / Magnolia Ave. (39.74451, -121.85270)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.7130	Other (At-Grade) Single-Lane	2005	Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Rigden Pkwy. / Custer Dr. (40.54863, -105.02960)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.9307	Other (At-Grade) Single-Lane	2001	Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Stanton Creek Dr. / St. Thomas Dr. (40.49066, -105.05590)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 24.5241	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	E. 13th St. / N. Denver Ave. (40.40520, -105.04480)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.7445	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Southbound approach has two-lane approach with right-turn-only lane; all other approaches are single-lane. Traffic from SuperWalMart and movie theatre go through roundabout to get to NB Denver to get to US 34/Eisenhower. Functional Class: Collector ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Silverwood Dr. / Centennial Rd. (40.54545, -105.05120)	Traffic Calming Circle Removed	All-Way Yield None	4 Approaches 0 Driveways 31.7646	Other (At-Grade) Single-Lane		Small almost mini-roundabout used for traffic calming measure. People drove through plastic posts, rendering roundabout useless; idea scrapped in less than 6 mo. Functional Class: Collector ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Mt. Vernon Ct. / New Bedford Dr. / Ticonderoga Dr. (40.53008, -105.05420)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 25.4175	Other (At-Grade) Single-Lane		Small almost mini roundabout, not very functional. Has small central island and no splitter islands only haching and road markings. Functional Class: Collector 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.
Denver, CO Denver Co. United States	Chopper Cir. / VIP Parking / 9th St. / Access Rd (39.74721, -105.00810)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.3424	Other (At-Grade) Single-Lane	1999	Located at Pepsi Center arena Functional Class: Collector 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.
Colorado Springs, CO El Paso Co. United States	Windjammer Dr. / Brigantine Dr. (38.95401, -104.77020)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 32.5070	Other (At-Grade) Single-Lane	1995	ICD estimated from Google Maps linework.
Oshkosh, WI Winnebago Co. United States	CTH E (Witzel Ave.) / Washburn St. (44.01808, -88.58321)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2010	Opened September 24, 2010.
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.
Encinitas, CA San Diego Co. United States	Santa Fe Dr. / Devonshire Dr. / Rubenstein Ave. (33.03622, -117.28590)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.0272	Other (At-Grade) Single-Lane	2004	Site of solo fatal crash in 2007, DUI .29%. http://www.nctimes.com/articles/2007/10/09/news/coastal/2_03_3710_8_07.txt. 11861-05. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Cuerto Ln. / (unknown) (40.57718, -105.13330)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 26.3067	Other (At-Grade) Single-Lane	2005	Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Tierra Ln. / Saddle Ridge Condominiums (40.57545, -105.13140)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 28.1217	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	College Ave. / Laporte Ave. (40.58899, -105.07720)	Other Removed	Unknown Unknown	4 Approaches 0 Driveways 26.3021	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Glen Isle Dr. / Glendale Dr. (40.43433, -105.11460)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	1995	No splitter islands on side street.
Loveland, CO Larimer Co. United States	Glen Isle Dr. / Buckingham Cir. (40.43580, -105.10680)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 64.5421	Other (At-Grade) Single-Lane	1997	Functional Class: Local ICD estimated from Google Maps linework.