Roundabouts Database Index

29554 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
Winston-Salem, NC Forsyth Co. United States	Waughtown St. / Fayetteville St. / Lomond St. (36.07442, -80.23228)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.9943	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Mooresville, NC Iredell Co. United States	Plantation Ridge Dr. / Singleton Rd. (35.58837, -80.87576)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.0800	Other (At-Grade) Single-Lane	2002	Year completed estimated (1994-2004). ICD estimated from Google Maps linework.
Chaska, MN Carver Co. United States	Hundertmark Rd. / Clover Ridge Dr. (44.81856, -93.63370)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.3460	Other (At-Grade) Single-Lane	2002	Year completed estimated (1993-2003). ICD estimated from Google Maps linework.
Chaska, MN Carver Co. United States	Clover Ridge Dr. / Clover Preserve Dr. / Walden Dr. (44.81900, -93.63693)	Roundabout Existing	Unknown None	4 Approaches 0 Driveways 28.8042	Other (At-Grade) Single-Lane	2002	Year completed estimated (1993-2002). ICD estimated from Google Maps linework.
Idaho Falls, ID Bonneville Co. United States	S Utah Ave. / Bridgeport Dr. (43.48859, -112.04979)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.6574	Other (At-Grade) Single-Lane	2002	Eagle Rock Fountain in center island. Roundabout was partially reconstructed with geometric improvements in 2014. Original construction was in 2002. ICD estimated from Google Maps linework.
Liberty Township, OH Butler Co. United States	The Trails Blvd. / Kensington Trl. / Windsor Trl. / Cambridge Trl. (39.39451, -84.34693)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 50.7634	Other (At-Grade) Single-Lane	2002	Stop control; no splitter islands. ICD estimated from Google Maps linework.
Liberty Township, OH Butler Co. United States	Berkshire Pl. / Amberly Ct. / Wiltshire Ct. (39.39282, -84.34687)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 27.6898	Other (At-Grade) Single-Lane	2002	Stop control and no splitter islands. ICD estimated from Google Maps linework.
West Chester Township, OH Butler Co. United States	Hutzelman Way / Plum Tree Dr. (39.35732, -84.46578)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 31.3977	Other (At-Grade) Single-Lane	2002	Painted splitter islands. ICD estimated from Google Maps linework.
Boardman, OR Morrow Co. United States	Tatone St. / City Center Dr. (45.83253, -119.70259)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 43.2722	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Redding, CA Shasta Co. United States	Madison River Dr. / Clark River Dr. (40.54198, -122.31914)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2004).
Flower Mound, TX Denton Co. United States	Lakeside Pkwy. / Lakeside Village Blvd. (32.98574, -97.06503)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2002	.
Victoria, MN Carver Co. United States	Watermark Pkwy. / Kelzer Pond Dr. (44.85331, -93.67349)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 38.1005	Unknown Single-Lane	2002	No splitter islands. ICD estimated from Google Maps linework.
Longmont, CO Boulder Co. United States	Deerwood Dr. / Bluefield Ave. (40.17346, -105.06460)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 26.4648	Other (At-Grade) Single-Lane	2002	Functional Class: Local ICD estimated from Google Maps linework.
Petaluma, CA Sonoma Co. United States	Corona Rd. / Sonoma Mountain Pkwy. (38.26890, -122.65450)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 31.8812	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	W Riverwood Blvd. / Windrow Blvd. (33.41749, -112.26690)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 23.9252	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Escalon, CA San Joaquin Co. United States	Riesling Way / California St. (37.79671, -121.01110)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.8749	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Monroe, WA Snohomish Co. United States	Country Crescent SE / County Crescent SE (47.86547, -121.96140)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2002	July 2002.
Richland, WA Benton Co. United States	Lee Blvd. / The Parkway (46.27484, -119.27433)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-Lane	2002	No splitter islands on north and south legs. Year Completed estimated (1996-2003).
North Providence, RI Providence Co. United States	US 44 / Centerdale Bypass (41.85703, -71.48295)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.2447	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Lincoln, NE Lancaster Co. United States	S 33rd St. / Sheridan Blvd. (40.78020, -96.67281)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.9836	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Viera, FL Brevard Co. United States	Wickham Rd. / Lake Andrews Dr. (28.22975, -80.72577)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.5091	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Functional Class: Arterial ICD estimated from Google Maps linework.
Newberg, OR Yamhill Co. United States	Brutscher St. / Hayes St. (45.30378, -122.94090)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.9211	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Sacramento, CA Sacramento Co. United States	Northborough Dr. / Heritage Park Ln. / Rose Arbor Dr. (38.68221, -121.51550)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.3081	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Laurel, MS Jones Co. United States	Central Ave. / Maple St. (31.69108, -89.12855)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.4224	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Clive, IA Dallas Co. United States	NW 156th St. / Boston Pkwy. (41.62066, -93.83356)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.7487	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	ICD estimated from Google Maps linework.
Rome, NY Oneida Co. United States	SR 825 / Ellsworth Rd. (43.21731, -75.41796)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.7044	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Constructed in old air force base. ICD estimated from Google Maps linework.
Olathe, KS Johnson Co. United States	Indian Wells Dr. / Spruce St. (38.88568, -94.85022)	Roundabout Removed	All-Way Yield None	2 Approaches 0 Driveways 44.6239	Other (At-Grade) Single-Lane	2002	Replaced in 2015 with new roundabout in location shifted slightly to west. ICD estimated from Google Maps linework.
Clearwater, FL Pinellas Co. United States	Ridgewood St. / Richards Ave. (27.97013, -82.76930)	Traffic Calming Circle Existing	All-Way Yield None	0 Approaches 0 Driveways 34.8091	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Clearwater, FL Pinellas Co. United States	Ridgewood St. / Baker Ave. (27.97012, -82.76842)	Traffic Calming Circle Existing	All-Way Yield None	0 Approaches 0 Driveways 48.5218	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Clearwater, FL Pinellas Co. United States	Ridgewood St. / Casler Ave. (27.97013, -82.76752)	Traffic Calming Circle Existing	All-Way Yield None	0 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2002
Clearwater, FL Pinellas Co. United States	Richards Ave. / Baker Ave. / Casler Ave. (27.96847, -82.76841)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2002
Oromocto, NB Sunbury Canada	Restigouche Rd. / Miramichi Rd. (45.83573, -66.48306)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 64.9046	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Santa Maria, CA Santa Barbara Co. United States	S. Bradley Rd. / E. McCoy Ln. (34.91219, -120.42160)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.8868	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	No circulatory roadway striping. Functional Class: Arterial ICD estimated from Google Maps linework.
Brandon, MB Westman Region Canada	34th St. / Willowdale Crescent (49.83122, -99.98436)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.9788	Other (At-Grade) Single-Lane	2002	Before 2004. ICD estimated from Google Maps linework.
Grand Junction, CO Mesa Co. United States	Colorado Ave. / S. 2nd St. (39.06636, -108.56950)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 25.9643	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Grand Junction, CO Mesa Co. United States	G Rd. / 25th Rd. (39.10636, -108.58940)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 30.5834	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
University Place, WA Pierce Co. United States	Cirque Dr. W / Alameda Ave. W / 56th St. W (47.20639, -122.51600)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 54.3624	Other (At-Grade) Single-Lane	2002	Completed December 2002. ICD estimated from Google Maps linework.
Saint Leonard, MD Calvert Co. United States	Calvert Beach Rd. / MD 765 Saint Leonard Rd. (38.47316, -76.50607)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 25.2460	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Annapolis Junction, MD Anne Arundel Co. United States	Guilford Rd. / MD 32 WB Ramps (39.12294, -76.78472)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.4293	Freeway Ramps (Grade-Separated) Single-Lane	2002	Bypass lanes on all legs. ICD estimated from Google Maps linework.
Mulberry, NC Wilkes Co. United States	Yellowbanks Rd. / Haymeadow Rd. (36.26457, -81.14713)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2002	Spot safety site.
Arlington, WA Snohomish Co. United States	W. Division St. / N. West Ave. (48.19864, -122.12800)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.8628	Other (At-Grade) Single-Lane	2002	September 2002. ICD estimated from Google Maps linework.
Arlington, WA Snohomish Co. United States	E. Division St. / N. Broadway St. (48.19858, -122.12530)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 23.8824	Other (At-Grade) Single-Lane	2002	September 2002. ICD estimated from Google Maps linework.
Lakewood, WA Pierce Co. United States	Main St. SW / 5th Ave. SW (47.16198, -122.51570)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.4220	Other (At-Grade) Single-Lane	2002	Completed June 2002. ICD estimated from Google Maps linework.
Winston-Salem, NC Forsyth Co. United States	Turfwood Dr. / Long Creek Dr. (36.19996, -80.32156)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 29.8771	Other (At-Grade) Single-Lane	2002	Built by developer. ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	McWhinney Blvd. / Hahns Peak Dr. / Grays Peak Dr. (40.41048, -105.01140)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 71.6280	Other (At-Grade) Multilane (2 Lane, unspecified)	2002
Goshen, CT Litchfield Co. United States	Rte. 4 / Rte. 63 (41.83185, -73.22539)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-Lane	2002	Painted splitter islands.
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.
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.
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.
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.
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.
Buffalo, NY Erie Co. United States	Gates Circle (Delaware Ave. / Lafayette Ave.) (42.92054, -78.86776)	Other Existing	Unknown Unknown	5 Approaches 0 Driveways 66.4699	Other (At-Grade) Unknown	2002	Modified in 2002 to incorporate roundabout principles. ICD estimated from Google Maps linework. 21442
Modesto, CA Stanislaus Co. United States	Chandon Dr. / Calero Dr. (37.67642, -120.93380)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4132	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Modesto, CA Stanislaus Co. United States	Bowen Ave. / Fremont Ave. (37.67470, -121.00260)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.9061	Other (At-Grade) Single-Lane	2002	Previously controlled by twsc ICD estimated from Google Maps linework.
Lake Worth, FL Palm Beach Co. United States	SR 802 (Lucerne Ave. - Lake Ave.) / A St. (26.61670, -80.06500)	Roundabout Existing	All-Way Yield Pedestrian Signal (red-yellow-green to drivers)	4 Approaches 0 Driveways 57.9120	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2002	ICD = 190 ft x 140 ft.
Bel Air, MD Harford Co. United States	Tollgate Rd. / Westover Ln. / Crisfield Dr. (39.46859, -76.32162)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.7377	Other (At-Grade) Single-Lane	2002	http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Oconomowoc, WI Waukesha Co. United States	Wisconsin Ave. / Lake Dr. (43.11224, -88.43968)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.1314	Other (At-Grade) Single-Lane	2002	Opened October 15, 2002. Previously controlled by one-way stop Functional Class: Local ICD estimated from Google Maps linework.
Lacey, WA Thurston Co. United States	Meridian Rd. / Orion Dr. (47.06890, -122.74140)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.1661	Other (At-Grade) Single-Lane	2002	Opened October 2002. Functional Class: Collector 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.
Asheville, NC Buncombe Co. United States	WT Weaver Blvd / University Heights (35.61435, -82.56285)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.1862	Other (At-Grade) Single-Lane	2002	Completed August 2002. Entrance to University of North Carolina at Asheville. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	1st Ave. / Holiday Rd. (41.69276, -91.56655)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.8896	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Opened September 1, 2002. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
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.
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.
Coral Gables, FL Miami-Dade Co. United States	Ponce de Leon Blvd. / Greco Ave. / Ruiz Ave. (25.73047, -80.25832)	Roundabout Existing	All-Way Yield Unknown	6 Approaches 0 Driveways 49.4917	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	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.
Springfield, OR Lane Co. United States	Maple Island Rd. / (parking lot) (44.08710, -123.03510)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.1674	Other (At-Grade) Single-Lane	2002	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.
Springfield, OR Lane Co. United States	Maple Island Rd. / Game Farm Rd. East (44.08580, -123.03510)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 25.7365	Other (At-Grade) Single-Lane	2002	One leg is driveway, 4th leg is future. ICD estimated from Google Maps linework.
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.
Gig Harbor, WA Pierce Co. United States	Borgen Blvd. / 51st (47.35959, -122.60640)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	4 Approaches 0 Driveways 35.5974	Other (At-Grade) Single-Lane	2002	In-pavement flashers in use on all crosswalks. Striped-out apron for future conversion to multilane. Opened September 2002. Functional Class: Arterial ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Chapel Hills Dr. / Divot Trl. (38.97569, -104.77560)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.7116	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Functional Class: Arterial 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.
Sherwood, OR Washington Co. United States	SW Oregon St. / SW Murdock Rd. (45.36060, -122.82520)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 49.5120	Other (At-Grade) Single-Lane	2002	Completed November 2002. ICD estimated from Google Maps linework.
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.
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.
Town and Country, MO St. Louis Co. United States	MO 141 SB Ramps / Woods Mill Rd. (38.63523, -90.51449)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 38.2503	Other (At-Grade) Single-Lane	2002	Previously controlled by one-way stop ICD estimated from Google Maps linework.
Advance, NC Davie Co. United States	NC 801 / I-40 EB Ramps (36.00655, -80.44083)	Roundabout Removed	All-Way Yield None	3 Approaches 0 Driveways 17.3907	Freeway Ramps (Grade-Separated) Single-Lane	2002	Developer-built "temporary" intersection fix. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Clemmons, NC Forsyth Co. United States	Styers Ferry Rd. / Utility Dr. (River Ridge Roundabout) (36.07380, -80.39124)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9598	Other (At-Grade) Single-Lane	2002	Built by developer. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Columbine, CO Jefferson Co. United States	S. Simms St. / W. Quincy Ave. (39.63865, -105.12860)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.0301	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	ICD estimated from Google Maps linework.
Milwaukee, WI Milwaukee Co. United States	S. 6th St. / W. Virginia St. / Florida St. (43.02698, -87.91770)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.7816	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Built as terminal of new bridge. Signal located downstream approximately 150-200 feet away (estimated) that queues back through roundabout during weekday p.m. peak. No lane designations on approach. Functional Class: Arterial ICD estimated from Google Maps linework.
Washington, UT Washington Co. United States	Coral Canyon Blvd. / Canyon Greens Dr. (37.16151, -113.44740)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.7951	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Cresthaven Dr. / Fairpark Dr. / Timberline Private (45.27486, -75.70937)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7465	Other (At-Grade) Single-Lane	2002	Minimal splitter islands. Functional Class: Local ICD estimated from Google Maps linework.
Greenville, MI Montcalm Co. United States	Meijer Dr. / Greenville West Dr. (43.17297, -85.27965)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4855	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2005). ICD estimated from Google Maps linework.
Burnaby, BC Greater Vancouver Regional District Canada	Ridge Dr. / Barnet Rd. / Duthie Ave. (49.28328, -122.95360)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2002
New Westminster, BC Greater Vancouver Regional District Canada	10th St. / Carnarvon St. (49.20056, -122.91550)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 17.1686	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Mont-Tremblant, QC Laurentides Region Canada	Montee Ryan / Chemin Duplessis (46.20699, -74.59426)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.1960	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Opened fall 2002.
Lansing, MI Ingham Co. United States	Moores River Dr. / Boston Blvd. / Pattengill Ave. (42.71923, -84.57225)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 15.7942	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	W Riverwood Blvd. / W Kirby Ave. (33.41608, -112.27480)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 16.9473	Other (At-Grade) Single-Lane	2002	Painted splitter islands. ICD estimated from Google Maps linework.
Port St. Lucie, FL St. Lucie Co. United States	SE Westmoreland Blvd. / Morningside Blvd. (27.25997, -80.30961)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.8991	Other (At-Grade) Single-Lane	2002	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.
Modesto, CA Stanislaus Co. United States	Bowen Ave. / Phelps Ave. (37.67470, -121.00600)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 22.6873	Other (At-Grade) Single-Lane	2002	Previously controlled by one-way stop ICD estimated from Google Maps linework.
Modesto, CA Stanislaus Co. United States	Lifescapes Dr. / Grecian Ave. (37.69840, -120.98540)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.5700	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Starkville, MS Oktibbeha Co. United States	Blackjack Rd. / Oktoc Rd. (33.44708, -88.79340)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 31.8893	Other (At-Grade) Single-Lane	2002	http://www.msstate.edu/web/media/detail.php?id=1874 Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
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.