Roundabouts Database Index

30321 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
Scaggsville, MD Howard Co. United States	MD 216 / US 29 NB Ramps / Ice Crystal Dr. (39.14476, -76.89799)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.7234	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2001	Series of 4 roundabouts. ICD estimated from Google Maps linework.
Millington, MD Kent Co. United States	MD 291 / US 301 SB Ramps (39.26463, -75.86641)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.4393	Freeway Ramps (Grade-Separated) Single-Lane	1999	Opened August 1999. ICD estimated from Google Maps linework.
Millington, MD Kent Co. United States	MD 291 / US 301 NB Ramps (39.26386, -75.86260)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.6656	Freeway Ramps (Grade-Separated) Single-Lane	1999	Opened August 1999. ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	N 70th Pl. / E Chaparral Rd. (33.50954, -111.92900)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2016	A traffic calming circle was completed in 2002 on what was otherwise a TWSC intersection. Roundabout constructed in 2016. On south leg there is no entry into the roundabout but instead a yield-controlled right-turn bypass lane to prevent northbound-to-westbound cut-through traffic.
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.
Rosemont, MD Frederick Co. United States	MD 17 / MD 180 (39.33768, -77.63950)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 30.4828	Other (At-Grade) Single-Lane	2001	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.
Temple Hills, MD Prince Georges Co. United States	MD 637 (Naylor Rd.) / Good Hope Ave. (38.84922, -76.95655)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.6248	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Temple Hills, MD Prince Georges Co. United States	MD 637 (Naylor Rd.) / Oxon Run Dr. (38.84986, -76.95789)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.4150	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Castle Marina, MD Queen Annes Co. United States	MD 18 / Castle Marina Rd. (38.97871, -76.28938)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.7819	Other (At-Grade) Single-Lane	1999	Previously controlled by two-way stop 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.
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.
Duvall, WA King Co. United States	SR 203 (Carnation-Duvall Rd.) / 124th St. / Novelty Hill (47.70910, -121.98440)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.9865	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	http://www.wsdot.wa.gov/projects/sr203/NE124thNoveltyRd/ Functional Class: Arterial 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.
North Haven, NY Suffolk Co. United States	Tyndall Road / Rte. 114 (Ferry Rd.) (41.01303, -72.31309)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.2334	Other (At-Grade) Single-Lane	2001	Replaced a dangerous 2-way stop. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Bel Air, MD Harford Co. United States	Tollgate Rd. / Wheel Rd. (39.48999, -76.32914)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5729	Other (At-Grade) Single-Lane	1999	http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Fairbanks, AK Fairbanks North Star United States	Thompson Dr / Tanana Loop Dr (64.85564, -147.84200)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.2695	Other (At-Grade) Single-Lane	2004	The site is on the University of Alaska, Fairbanks, school campus. The project constructed a new entrance onto the campus intersecting by means of a roundabout with an existing three leg stop controlled intersection. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Murray, KY Calloway Co. United States	Gilbert Groves Dr. / Murray State University parking lot (36.62003, -88.31861)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.0473	Other (At-Grade) Single-Lane	2003	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.
Moses Lake, WA Grant Co. United States	Yonezawa Blvd. / Clover Dr. / Kittleson Rd. (47.10387, -119.25730)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.8990	Other (At-Grade) Single-Lane	2001	Part of series of 3 roundabouts. Functional Class: Collector ICD estimated from Google Maps linework.
Moses Lake, WA Grant Co. United States	Yonezawa Blvd. / Leanne Ave. (47.10454, -119.27060)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.4597	Other (At-Grade) Single-Lane	2001	Completed fall 2001. Part of series of 3 roundabouts. Functional Class: Collector ICD estimated from Google Maps linework.
Guelph, ON Wellington County Canada	Summerfield Dr. / Colonial Dr. (43.51809, -80.18253)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.4466	Other (At-Grade) Single-Lane	2001	Located in Pine Ridge East residenital subdivision Functional Class: Collector ICD estimated from Google Maps linework.
Lexington, KY Lexington-Fayette Co. United States	Old Frankfort Pike / Alexandria Dr. (38.06952, -84.55762)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2010
Dumont / Cresskill, NJ Bergen Co. United States	Madison Ave. / Knickerbocker Rd. (Monument) (40.94127, -73.97681)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 74.8804	Other (At-Grade) Single-Lane		Completed May 30, 1924. Nearest traffic count was conducted on Knickerbocker Road (County Route 505) about 0.5 km from the intersection. http://tcs.state.nj.us/tmsweb/Report/h2d5c913_99_hrvolume.pdf Functional Class: Local ICD estimated from Google Maps linework.
Hebron, KY Kenton Co. United States	North Bend Rd. / Graves Rd. / Old North Bend Rd. (39.09881, -84.71849)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.3432	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Sunnyside Ave. N / N 43rd St. (47.65912, -122.33020)	Traffic Calming Circle Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2006
Bend, OR Deschutes Co. United States	SW Mt. Washington Dr. / SW Simpson Ave. (44.04736, -121.34400)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.6208	Other (At-Grade) Single-Lane	2013	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.
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.
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
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.
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.
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
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.
Scottsdale, AZ Maricopa Co. United States	N 68th St. / E Cholla St. (33.58949, -111.93552)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2003	Completed with traffic calming project.
Sammamish, WA King Co. United States	NE Inglewood Hill / 216th Ave. NE (47.61554, -122.05180)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.3989	Other (At-Grade) Single-Lane	2001	October 2001. 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.
Wisconsin Rapids, WI Wood Co. United States	STH 54 (2nd Ave.) / Gaynor Ave. / 17th Ave. (44.38025, -89.84447)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.3874	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	Opened September 2004. Previously controlled by two-way stop Functional Class: Arterial 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.
Bend, OR Deschutes Co. United States	NE 8th St. / 9th St. / Franklin Ave. (44.05600, -121.29380)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7577	Other (At-Grade) Single-Lane	2004	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.
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.
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.
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.
San Antonio, TX Bexar Co. United States	Blanco Rd. / Fulton Ave. (29.46156, -98.50787)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4317	Other (At-Grade) Single-Lane	2007	.
Sterling Heights, MI Macomb Co. United States	Van Dyke Ave. (M-53) / 18 1/2 Mile Rd. (42.60148, -83.03119)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 76.2000	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)	2005	Completed June 2005.
Abita Springs, LA St. Tammany Par. United States	LA 59 / LA 36 (30.47826, -90.03768)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.8204	Other (At-Grade) Single-Lane	2007	https://www.nola.com/news/traffic/article_6d2b5475-b7f9-5429-a8f7-2127046c5508.html ICD estimated from Google Maps linework.
Kennewick, WA Benton Co. United States	19th Ave. / Union St. (46.19220, -119.18040)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.2832	Other (At-Grade) Single-Lane	2003	1/3 mile from school, primary bus and traffic route for the school, on school walking route, has adult crossing guards. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Kennewick, WA Benton Co. United States	4th Ave. / Union St. (46.20640, -119.18010)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.4496	Other (At-Grade) Single-Lane	2003	Completed October 2003. Functional Class: Collector ICD estimated from Google Maps linework.
Kennewick, WA Benton Co. United States	Kennewick Ave. / Union St. (46.20983, -119.18000)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.1420	Other (At-Grade) Single-Lane	2003	Completed October 2003. Functional Class: Collector ICD estimated from Google Maps linework.
Kennewick, WA Benton Co. United States	Creekstone Dr. / Irving St. (46.18894, -119.19640)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.0725	Other (At-Grade) Single-Lane	2005	New roadway (Creekstone) connecting into existing subdivision stub-street (Irving) on south side and new subdivision on north side Functional Class: Collector 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.
Lacey, WA Thurston Co. United States	Marvin Rd. / Hawks Prairie Rd. (47.08312, -122.78070)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.6509	Other (At-Grade) Single-Lane	2002	Constructed September 14, 2002. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	College St. / 45th Ave. (47.00710, -122.82310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.0923	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Completed November 6, 2002. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	SR 510 (Marvin Rd.) / Pacific Ave. (47.03941, -122.76480)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.5572	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Completed July 28, 2003. Functional Class: Arterial 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.
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.
West Bend, WI Washington Co. United States	Paradise Dr. / CTH G (43.39770, -88.16100)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.5053	Other (At-Grade) Single-Lane	2003	Completed September 18, 2003 Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Bridle Oaks Dr. / Woodmont Dr. (39.01377, -104.79950)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 64.0311	Other (At-Grade) Single-Lane	2005	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.
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.
Sioux Falls, SD Minnehaha Co. United States	69th St. / Southeastern Ave. (43.48928, -96.68768)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.7250	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	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.
Rochester Hills, MI Oakland Co. United States	Tienken Rd. / Sheldon Rd. (42.69626, -83.12320)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.6224	Other (At-Grade) Single-Lane	2001	Near Hart Middle School and Stoney Creek High School. 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.