Roundabouts Database Index

11071 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
Avon, CO Eagle United States	Avon Rd. / I-70 WB Ramps (39.63782, -106.52080)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	3 Approaches 0 Driveways 33.1108	Freeway Ramps Multilane (2 Lane)	1997	Highway ref. pt. 70-166.62. Raindrop-shaped central island. ICD estimated from Google Maps linework.
Avon, CO Eagle United States	Avon Rd. / I-70 EB Ramps (39.63683, -106.52170)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.7903	Freeway Ramps Multilane (2 Lane)	1997	Highway ref. pt. 70-166.62. Previously controlled by two-way stop ICD estimated from Google Maps linework.
De Pere, WI Brown United States	Scheuring Rd. (CTH F) / US 41 NB Ramps (44.43074, -88.10989)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.3491	Freeway Ramps Multilane (2 Lane)	2011	Series of 6 roundabouts. Opened September 2011. Circular central island. ICD estimated from Google Maps linework.
Ritchie, MD Prince Georges United States	Ritchie-Marlboro Rd. / I-95 SB Ramps (38.86894, -76.84738)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.6345	Freeway Ramps Multilane (2 Lane)	2001	ICD estimated from Google Maps linework.
Ritchie, MD Prince Georges United States	Ritchie-Marlboro Rd. / I-95 NB Ramps (38.86824, -76.84158)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 49.2844	Freeway Ramps Multilane (2 Lane)	2001	ICD estimated from Google Maps linework.
De Pere, WI Brown United States	Scheuring Rd. (CTH F) / US 41 SB Ramps (44.43050, -88.11402)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.7308	Freeway Ramps Multilane (2 Lane)	2011	Series of 6 roundabouts. Opened September 2011. ICD estimated from Google Maps linework.
Ellicott City, MD Howard United States	MD 103 / MD 100 WB Ramps (39.20846, -76.78294)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.3154	Freeway Ramps Single-Lane	1998	Opened November 1998. ICD estimated from Google Maps linework.
Ellicott City, MD Howard United States	MD 103 / MD 100 EB Ramps (39.20733, -76.78243)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.5396	Freeway Ramps Single-Lane	1998	Opened November 1998. ICD estimated from Google Maps linework.
Ellicott City, MD Howard United States	Snowden River Pkwy. / MD 100 WB Ramps (39.21233, -76.79544)	Roundabout Existing	All-Way Yield Metering Signal	3 Approaches 0 Driveways 25.9105	Freeway Ramps Single-Lane	1998	Opened November 1998. Metering signal on Snowden River Pkwy approach. ICD estimated from Google Maps linework.
Ellicott City, MD Howard United States	MD 104 (Waterloo Rd.) / MD 100 WB Ramps (39.22470, -76.80600)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.0085	Freeway Ramps Multilane (2 Lane)	1999	ICD estimated from Google Maps linework.
Topeka, KS Shawnee United States	Rice Rd. / I-70 WB Ramps / Sycamore Dr. (39.03610, -95.62310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.5293	Freeway Ramps Single-Lane	2000	Part of a major realignment of I-70 and K-4. Sycamore Drive is one way with two westbound lanes (into the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework.
Topeka, KS Shawnee United States	Rice Rd. / I-70 EB Ramps / Cyprus Drive (39.03190, -95.62320)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.8817	Freeway Ramps Single-Lane	2000	Part of a major realignment of I-70 and K-4. Cyprus Drive is One Way Eastbound (away from the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework.
Green Bay, WI Brown United States	W. Mason St. (STH 32-STH 54) / US 41 SB Ramps (44.52418, -88.08284)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.9811	Freeway Ramps Multilane (3+ Lane)	2012	Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework.
Green Bay, WI Brown United States	W. Mason St. (STH 32-STH 54) / US 41 NB Ramps (44.52415, -88.08103)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 43.4266	Freeway Ramps Multilane (3+ Lane)	2012	Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework.
Arcata, CA Humboldt United States	Guintoli Ln. / US 101 SB Ramps (40.90400, -124.08920)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.7180	Freeway Ramps Single-Lane	2005	ICD estimated from Google Maps linework.
Arcata, CA Humboldt United States	Guintoli Ln. / US 101 NB Ramps (40.90492, -124.08510)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.3015	Freeway Ramps Single-Lane	2005	ICD estimated from Google Maps linework.
Kingston, NY Ulster United States	I-587 / Rte. 28 / I-87 / Washington Ave. (41.94362, -74.02840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.7424	Freeway Ramps Multilane (2 Lane)	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. ICD estimated from Google Maps linework.
Newton, KS Harvey 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 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.
Topeka, KS Shawnee United States	46th St. / US 75 Ramps (39.12934, -95.71959)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 68.5587	Freeway Ramps Single-Lane	2002	Roundabout under structure as part of single-point interchange. Elliptical roundabout. Original intersection was at grade. Completed November 2002. ICD estimated from Google Maps linework.
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 Multilane (2 Lane)	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 Multilane (2 Lane)	2004	Spiral striping. ICD estimated from Google Maps linework.
Lewisville, NC Forsyth 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 Single-Lane	2000	Solved capacity problem. Previously controlled by one-way stop ICD estimated from Google Maps linework.
St. George, UT Washington 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 Single-Lane	2006	Raindrop-shaped interchange terminal. ICD estimated from Google Maps linework.
Scaggsville, MD Howard United States	MD 216 / US 29 SB Ramps (39.14562, -76.90418)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.7228	Freeway Ramps Multilane (2 Lane)	2001	Series of 4 roundabouts. ICD estimated from Google Maps linework.
Scaggsville, MD Howard 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 Multilane (2 Lane)	2001	Series of 4 roundabouts. ICD estimated from Google Maps linework.
Millington, MD Kent 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 Single-Lane	1999	Opened August 1999. ICD estimated from Google Maps linework.
Millington, MD Kent 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 Single-Lane	1999	Opened August 1999. ICD estimated from Google Maps linework.
Gig Harbor, WA Pierce United States	Borgen Blvd. / SR 16 NB Ramps / Burnham Dr. (47.35843, -122.61260)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 47.7339	Freeway Ramps Multilane (2 Lane)	2001	Oval shaped central island. 6 legged configuration includes a on-ramp (outbound)leg. Central island is used as a roadway storm detention pond. Completed Summer/Fall 2001. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Richland, WA Benton United States	Steptoe Dr. / SR 240 EB Ramps / Columbia Park Trl. (46.23893, -119.24546)	Roundabout Existing	All-Way Yield Metering Signal	5 Approaches 0 Driveways 49.5636	Freeway Ramps Multilane (2 Lane)	2007	5th leg is on-ramp to SR 240. Opened November 2007. According to local news (link below) they started metering the traffic on the westbound Columbia Park Trail approach in 2018. It only turns on when traffic coming off the freeway gets backed up. https://97rockonline.com/tri-cities-roundabout-gets-new-metered-traffic-light-wait-what/ ICD estimated from Google Maps linework.
St. George, UT Washington United States	E. Brigham Rd. / I-15 SB Ramps / Pioneer Rd. (37.05999, -113.58560)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 78.1526	Freeway Ramps Multilane (2 Lane)	2006	Combines interchange ramps and frontage road. ICD estimated from Google Maps linework.
Advance, NC Davie 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 Single-Lane	2002	Developer-built "temporary" intersection fix. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa United States	Happy Valley Rd. / I-17 NB Ramps (33.71291, -112.11477)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 64.0080	Freeway Ramps Multilane (2 Lane)	2002	Revised 2005. Planned removal in 2020 to be replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw.
Phoenix, AZ Maricopa United States	Happy Valley Rd. / I-17 SB Ramps (33.71292, -112.12019)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 209.9999	Freeway Ramps Multilane (2 Lane)	2002	Revised 2005. Planned removal in 2020 to be replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw
Frisco, CO Summit United States	SH 9 / I-70 WB Ramps (39.59339, -106.09700)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 34.0524	Freeway Ramps Single-Lane	2000	Highway ref. pt. 70-202.35. ICD estimated from Google Maps linework.
Gig Harbor, WA Pierce United States	Borgen Blvd. / SR 16 SB Ramps (47.35868, -122.61610)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.8342	Freeway Ramps Single-Lane	2004	Opened March 2004. ICD estimated from Google Maps linework.
Kaukauna, WI Outagamie United States	CTH J / US 41 SB Ramps (44.30645, -88.24948)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.8965	Freeway Ramps Single-Lane	2010	Opened October 11, 2010. ICD estimated from Google Maps linework.
Columbia, MO Boone United States	Business Loop 70 / I-70 WB Ramps / Creasy Springs Rd. (38.96655, -92.35241)	Roundabout Removed	All-Way Yield Unknown	5 Approaches 0 Driveways 94.7178	Freeway Ramps Single-Lane	1996	First roundabout in Missouri by Missouri DOT. Originally built in 1996 per article: https://www.voxmagazine.com/news/all-about-roundabouts-in-columbia/article_93724b2b-8b20-5228-b4de-315c5c3d2004.html. Replaced with roundabout to immediate west. ICD estimated from Google Maps linework.
Carson City, NV Carson City 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 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 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 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.
Sterling Heights, MI Macomb 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 63.2967	Freeway Ramps Multilane (2 Lane)	2005	Completed June 2005. ICD estimated from Google Maps linework.
Kaukauna, WI Outagamie United States	CTH J / US 41 NB Ramps (44.30463, -88.24939)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.6070	Freeway Ramps Single-Lane	2010	Opened October 11, 2010. ICD estimated from Google Maps linework.
Avon, CO Eagle United States	William J Post Blvd. / I-70 WB Ramps (39.62759, -106.49460)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.6349	Freeway Ramps Multilane (2 Lane)	2003	ICD estimated from Google Maps linework.
Avon, CO Eagle United States	William J Post Blvd. / I-70 EB Ramps (39.62714, -106.49610)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.7153	Freeway Ramps Multilane (2 Lane)	2003	ICD estimated from Google Maps linework.
Newton, KS Harvey 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 Single-Lane	2003	Single-point interchange. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Hanover, MD Anne Arundel United States	Arundel Mills Blvd. / MD 295 NB Ramps (39.15573, -76.74459)	Roundabout Removed	All-Way Yield None	3 Approaches 0 Driveways 26.8575	Freeway Ramps Multilane (2 Lane)	2002	ICD estimated from Google Maps linework.
Hanover, MD Anne Arundel United States	Arundel Mills Blvd. / MD 295 SB Ramps (39.15677, -76.74617)	Roundabout Removed	All-Way Yield None	2 Approaches 0 Driveways 66.6797	Freeway Ramps Multilane (2 Lane)	2002	ICD estimated from Google Maps linework.
Jessup, MD Howard United States	Canine Rd. / MD 32 EB Ramps (39.10101, -76.76953)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.0005	Freeway Ramps Single-Lane	2001	ICD estimated from Google Maps linework.
Truckee, CA Nevada United States	Hwy 89 / I-80 EB Ramps (39.32243, -120.20770)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 55.4354	Freeway Ramps Multilane (2 Lane)	2005	ICD estimated from Google Maps linework.
Camp Verde, AZ Yavapai United States	Middle Verde Rd. / I-17 NB Ramps (34.61039, -111.86160)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.4040	Freeway Ramps Single-Lane	2006	ICD estimated from Google Maps linework.
Truckee, CA Nevada United States	Hwy 89 / I-80 WB Ramps (39.32386, -120.20760)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.6518	Freeway Ramps Multilane (2 Lane)	2005	ICD estimated from Google Maps linework.
Acoma Indian Reservation, NM McKinley United States	SH 30 / I-40 WB Ramps (35.07505, -107.56110)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 65.4884	Freeway Ramps Multilane (2 Lane)	2010	Merging right-turn bypass lane on north leg. Series of 3 roundabouts. ICD estimated from Google Maps linework.
Brighton, MI Livingston United States	Lee Rd. / US 23 NB Ramps / Fieldcrest Dr. (42.50486, -83.75652)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.5461	Freeway Ramps Multilane (2 Lane)	2005	ICD estimated from Google Maps linework.
Brighton, MI Livingston United States	Lee Rd. / US 23 SB Ramps (42.50605, -83.75954)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.8600	Freeway Ramps Multilane (2 Lane)	2006	Linked with Lee Rd/Whitmore Lake Rd roundabout. Previously controlled by one-way stop control ICD estimated from Google Maps linework.
Buena Vista Township, MI Saginaw United States	M-81 / I-75 SB Ramps (43.45060, -83.89209)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.6818	Freeway Ramps Single-Lane	2006	Right turn bypass lanes ICD estimated from Google Maps linework.
Buena Vista Township, MI Saginaw United States	M-81 / I-75 NB Ramps (43.45056, -83.88958)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.6818	Freeway Ramps Single-Lane	2006	Right turn bypass lanes ICD estimated from Google Maps linework.
Chattanooga, TN Hamilton United States	SR 153 NB Ramps / Lake Resort Dr. (35.10986, -85.22842)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 55.6902	Freeway Ramps Multilane (2 Lane)	2006	At new intersection with new bridge and alignment of Lake Resort Drive. Former intersection was ~800 to the south. Non-symetric design. Some motions have two lanes. Previously controlled by signal ICD estimated from Google Maps linework.
Chattanooga, TN Hamilton United States	SR 153 SB Ramps / N. Access Rd. / TVA offices (35.10868, -85.23122)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 97.7036	Freeway Ramps Multilane (2 Lane)	2006	N Access Road is a 4 lane arterial road. Fatal crash April 4, 2010. 11861-05. ICD estimated from Google Maps linework.
Jessup, MD Anne Arundel United States	MD 198 (Laurel Fort Meade Rd.) / MD 32 EB Ramps (39.08997, -76.75736)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.7874	Freeway Ramps Multilane (2 Lane)	2002	ICD estimated from Google Maps linework.
Jessup, MD Anne Arundel United States	MD 198 (Laurel Fort Meade Rd.) / MD 32 WB Ramps (39.09178, -76.75688)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 43.5672	Freeway Ramps Multilane (2 Lane)	2002	ICD estimated from Google Maps linework.
Acoma Indian Reservation, NM McKinley United States	SH 30 / I-40 EB Ramps (35.07341, -107.56120)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 65.4897	Freeway Ramps Multilane (2 Lane)	2010	Merging right-turn bypass lane on west leg. Series of 3 roundabouts. ICD estimated from Google Maps linework.
Glenwood Springs, CO Garfield United States	Mel Ray Rd. / I-70 WB Ramps / US 6 (39.56142, -107.36127)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 44.1965	Freeway Ramps Multilane (2 Lane)	2006	ICD estimated from Google Maps linework.
Glenwood Springs, CO Garfield United States	Mel Ray Rd. / I-70 EB Ramps / Midland Ave. / Riverine Rd. (39.56019, -107.36139)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.9595	Freeway Ramps Multilane (2 Lane)	2006	1 of 2 at Exit 114 on I-70, observed under construction in 2005. ICD estimated from Google Maps linework.
Mesa, AZ Maricopa United States	Brown Rd. / Loop 202 SB Ramps (33.43689, -111.65280)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.8563	Freeway Ramps Multilane (2 Lane)	2007	ICD estimated from Google Maps linework.
Mesa, AZ Maricopa United States	Brown Rd. / Loop 202 NB Ramps (33.43694, -111.64850)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.8396	Freeway Ramps Multilane (2 Lane)	2007	ICD estimated from Google Maps linework.
Woburn, MA Middlesex United States	I-95 Ramps / MA 38 (Main St.) (42.49945, -71.15711)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 30.8196	Freeway Ramps Multilane (2 Lane)		ICD estimated from Google Maps linework.
Revere, MA Suffolk United States	Copeland Circle - US 1 Ramps / MA 60 (Squire Rd.) (42.43008, -71.01710)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways	Freeway Ramps Multilane (2 Lane)		Retrofitted (November 2018) with multi-lane approaches/departures on the Route 1 ramps and roundabout style pavement markings and signs within the circulating roadway
Boston, MA Suffolk United States	Willard St. / I-93 Ramps / Furnace Brook Expwy. (42.24208, -71.02673)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 99.0276	Freeway Ramps Multilane (2 Lane)		ICD estimated from Google Maps linework.
Brighton, CO Adams United States	W. Bridge St. / US 85 NB Ramps (39.98683, -104.82320)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 43.0090	Freeway Ramps Multilane (2 Lane)	2006	Part of double-dumbbell interchange with two roundabouts and one storage lane into railroad crossing. ICD estimated from Google Maps linework.
Brighton, CO Adams United States	W. Bridge St. / US 85 SB Ramps (39.98682, -104.82450)	Roundabout Existing	Unknown Unknown	5 Approaches 0 Driveways 43.9241	Freeway Ramps Multilane (2 Lane)	2006	Part of double-dumbbell interchange with two roundabouts and one storage lane into railroad crossing. ICD estimated from Google Maps linework.
Lewisville, NC Forsyth United States	Concord Church Rd. / US 421 NB Ramps (36.09143, -80.42963)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.8835	Freeway Ramps Single-Lane	2003	Mirror image of other ramp. ICD estimated from Google Maps linework.
Owatonna, MN Steele United States	CSAH 7 / TH 14 EB Ramps (44.05747, -93.27671)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.3480	Freeway Ramps Single-Lane	2012	ICD estimated from Google Maps linework.
Owatonna, MN Steele United States	CSAH 7 / TH 14 WB Ramps (44.05998, -93.27671)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1964	Freeway Ramps Multilane (2 Lane)	2012	ICD estimated from Google Maps linework.
North Pole, AK Fairbanks North Star United States	Badger Rd. / Richardson Hwy WB Ramps (64.75903, -147.35120)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.5390	Freeway Ramps Single-Lane	2007	Series of three roundabouts. Raindrop-shaped central island. ICD estimated from Google Maps linework.
North Pole, AK Fairbanks North Star United States	Badger Rd. / Richardson Hwy EB Ramps / Santa Claus Ln. (64.75820, -147.35170)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.5771	Freeway Ramps Single-Lane	2007	Series of three roundabouts. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Stevensville, MD Queen Annes United States	Thompson Creek Rd. / US 50 EB Ramps (38.97599, -76.31046)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 16.7127	Freeway Ramps Mini-roundabout	2007	Mini-roundabout. ICD estimated from Google Maps linework.
Burtonsville, MD Montgomery United States	Dustin Rd. / US 29 SB Offramp / Columbia Pike (39.12256, -76.92656)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.5482	Freeway Ramps Single-Lane	2006	Fatal crash October 14, 2007.: http://www.fredericknewspost.com/sections/news/display.htm?StoryID=66411. 11861-05. ICD estimated from Google Maps linework.
Ann Arbor, MI Washtenaw United States	Maple Rd. / M-14 WB Ramp (42.30177, -83.78105)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.5169	Freeway Ramps Multilane (2 Lane)	2007	ICD estimated from Google Maps linework.
Ann Arbor, MI Washtenaw United States	Maple Rd. / M-14 EB Ramp (42.29990, -83.78100)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.8680	Freeway Ramps Multilane (2 Lane)	2007	ICD estimated from Google Maps linework.
Abbotsford, BC Fraser Valley Regional District Canada	Mt Lehman Rd. / Old Yale Rd. / Hwy 1 WB On-ramps (49.05889, -122.38131)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.0000	Freeway Ramps Multilane (2 Lane)	2006
Surrey, BC Greater Vancouver Regional District Canada	8 Ave. / Hwy 99 NB Ramps (49.01694, -122.75800)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.4645	Freeway Ramps Multilane (2 Lane)	2005	ICD estimated from Google Maps linework.
Fort McMurray, AB Wood Buffalo Canada	Hwy 63 NB Ramps / King St. (56.70683, -111.35380)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.1574	Freeway Ramps Single-Lane	2003	http://www.engineering.ualberta.ca/uofaengineer/article.cfm?article=40221&issue=39463 ICD estimated from Google Maps linework.
Sheboygan, WI Sheboygan United States	STH 42 / I-43 NB Ramps (43.79261, -87.76325)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.0714	Freeway Ramps Multilane (2 Lane)	2007	Opened November 2007. http://www.sheboygan-press.com/apps/pbcs.dll/article?AID=/20071028/SHE0101/710280468/1973 ICD estimated from Google Maps linework.
Sheboygan, WI Sheboygan United States	STH 42 / I-43 SB Ramps (43.79406, -87.76523)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.9673	Freeway Ramps Multilane (2 Lane)	2007	Opened November 2007. http://www.sheboygan-press.com/apps/pbcs.dll/article?AID=/20071028/SHE0101/710280468/1973 ICD estimated from Google Maps linework.
Federal Way, WA King United States	S 317th St. / 28th Ave. S / I-5 HOV Access Ramps (47.31781, -122.29760)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.4836	Freeway Ramps Single-Lane	2006	Opened February 2006. ICD estimated from Google Maps linework.
Charlotte, NC Mecklenburg United States	Moores Chapel Rd. / I-485 NB Ramp (35.27366, -80.96478)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 37.0520	Freeway Ramps Single-Lane	2005	Interchange terminal. Fatal crash May 14, 2008. ICD estimated from Google Maps linework.
Charlotte, NC Mecklenburg United States	Moores Chapel Rd. / I-485 SB Ramp (35.27376, -80.96779)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 37.0520	Freeway Ramps Single-Lane	2005	Interchange terminal. Fatal crash June 28, 2011. ICD estimated from Google Maps linework.
Waynesville, NC Haywood United States	Hyatt Creek Rd. / US 23-US 74 SB Ramps (35.46494, -83.01322)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.1551	Freeway Ramps Single-Lane	2008	ICD estimated from Google Maps linework.
Columbus, NC Polk United States	NC 108 / I-26 EB Ramps (35.24493, -82.20628)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 35.1144	Freeway Ramps Single-Lane	2004	Part of interchange - two-lane bridge. ICD estimated from Google Maps linework.
Columbus, NC Polk United States	NC 108 / I-26 WB Ramps (35.24627, -82.20499)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 34.1384	Freeway Ramps Single-Lane	2007	Part of interchange - two-lane bridge. ICD estimated from Google Maps linework.
North Bend, WA King United States	SR 202 / I-90 EB Ramps (47.48782, -121.79730)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 41.9673	Freeway Ramps Multilane (2 Lane)	2007	Opened November 2007. ICD estimated from Google Maps linework.
Annapolis Junction, MD Anne Arundel 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 Single-Lane	2002	Bypass lanes on all legs. ICD estimated from Google Maps linework.
Hughesville, MD Charles United States	MD 231 / MD 5 NB Ramps (38.53426, -76.77790)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 54.1863	Freeway Ramps Multilane (2 Lane)	2005	ICD estimated from Google Maps linework.
Hughesville, MD Charles United States	MD 231 / MD 5 SB Ramps (38.53381, -76.77969)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 58.8579	Freeway Ramps Multilane (2 Lane)	2005	ICD estimated from Google Maps linework.
Avonport, NS Kings Canada	Trunk 1 / Hwy 101 WB Ramps / Oak Island Rd. (45.10019, -64.25748)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Freeway Ramps Single-Lane	2006
Rio Puerco, NM Bernalillo United States	Central Ave. / I-40 EB Ramps (35.03048, -106.94750)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 68.4580	Freeway Ramps Single-Lane	2008	Owned by New Mexico DOT. Previously controlled by stop control ICD estimated from Google Maps linework.
Cabazon, CA Riverside United States	Apache Trl. / I-10 EB Ramps (33.92071, -116.80680)	Roundabout Existing	All-Way Yield At-Grade Rail Crossing Gates (controlling approach only)	3 Approaches 0 Driveways 54.5087	Freeway Ramps Multilane (2 Lane)	2008	Opened July 11, 2008. http://www.pe.com/localnews/rivcounty/stories/PE_News_Local_S_circle21.46d763e.html. Railroad in close proximity. ICD estimated from Google Maps linework.
Cabazon, CA Riverside United States	Apache Trl. / I-10 WB Ramps (33.92192, -116.80610)	Roundabout Existing	All-Way Yield None	0 Approaches 0 Driveways 64.4184	Freeway Ramps Multilane (2 Lane)	2008	Opened July 11, 2008. http://www.pe.com/localnews/rivcounty/stories/PE_News_Local_S_circle21.46d763e.html Previously controlled by two way stop ICD estimated from Google Maps linework.
Kennewick, WA Benton United States	SR 240 / US 395 SB Ramps (46.21697, -119.13980)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.9307	Freeway Ramps Multilane (2 Lane)	2009	June 2009. ICD estimated from Google Maps linework.
Kennewick, WA Benton United States	SR 240 / US 395 NB Ramps / Columbia Dr. (46.21688, -119.13680)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.0973	Freeway Ramps Multilane (2 Lane)	2009	June 2009. ICD estimated from Google Maps linework.
New Berlin, WI Waukesha United States	Moorland Rd. (CTH O) / I-43 NB Ramps / Rockridge Rd. (42.94913, -88.10900)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2068	Freeway Ramps Multilane (2 Lane)	2007	Opened September 2007. ICD estimated from Google Maps linework.