Roundabouts Database Index

29904 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
Maple Ridge, BC Greater Vancouver Canada	Jackson Rd. / 102 Ave. (49.18779, -122.54119)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.5401	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2012-2013). ICD estimated from Google Maps linework.
Richmond, BC Greater Vancouver Canada	Entertainment Blvd. / (parking lots) (49.13559, -123.06424)	Other Existing	Uncontrolled None	3 Approaches 3 Driveways 43.7592	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Richmond, BC Greater Vancouver Canada	Bayview St. / Easthope Ave. (49.12328, -123.17882)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 21.8850	Other (At-Grade) Single-Lane		No splitter islands. ICD estimated from Google Maps linework.
Tsawwassen, BC Greater Vancouver Canada	Crescent Dr. / Westminster Ave. (49.10197, -123.07218)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 24.0000	Other (At-Grade) Single-Lane		Little entry deflection. Year Completed unknown (before 2003).
Tsawwassen, BC Greater Vancouver Canada	Churchill St. / Airport Rd. (49.08220, -123.00379)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.0725	Other (At-Grade) Single-Lane	2011	Unfinished in Aug 2011 (streetview). ICD estimated from Google Maps linework.
Surrey, BC Greater Vancouver Canada	68 Ave. / 194 St. (49.12637, -122.68530)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.0099	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011 - Streetview). ICD estimated from Google Maps linework.
Bellingham, WA Whatcom Co. United States	Cordata Pkwy. / Stuart Rd. (48.79931, -122.49572)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.4016	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	https://www.cob.org/gov/projects/Pages/Cordata%20Stuart%20Roundabout.aspx. ICD estimated from Google Maps linework.
Burlington, WA Skagit Co. United States	E George Hopper Rd. / S Walnut St. (48.45200, -122.33174)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 20.5955	Other (At-Grade) Single-lane w/ Traversable Central Island	2015	ICD estimated from Google Maps linework.
Burlington, WA Skagit Co. United States	Marketplace Dr. / S Walnut St. (48.44859, -122.33169)	Roundabout Existing	Other None	4 Approaches 0 Driveways 15.0516	Other (At-Grade) Single-lane w/ Traversable Central Island	2015	Year Completed estimated (2015-2016). Two approaches have stop signs at the crosswalk and yield lines (without yield signs) at the entrance (streetview), and no control at the crosswalks on the exit side. ICD estimated from Google Maps linework.
Marysville, WA Snohomish Co. United States	Quil Ceda Blvd. / 30th Ave. NE (48.09620, -122.19019)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.4905	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	Year Completed estimated (2012-2014). ICD estimated from Google Maps linework.
Issaquah, WA King Co. United States	SE 62nd St. / 221st Pl. SE / 4th Ave. NW (47.54682, -122.04277)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.2155	Other (At-Grade) Single-Lane	2019	https://www.youtube.com/watch?v=FGdBuaAZqVU. https://www.issaquahwa.gov/62. ICD estimated from Google Maps linework.
Issaquah, WA King Co. United States	SE 62nd St. / Lake Dr. / Pickering Pl. (47.54599, -122.04930)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 22.5728	Other (At-Grade) Single-Lane	2019	https://www.youtube.com/watch?v=FGdBuaAZqVU. https://www.issaquahwa.gov/62. ICD estimated from Google Maps linework.
Issaquah, WA King Co. United States	19th Ave. NW / NW Gilman Blvd. (47.54571, -122.06644)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 21.7667	Other (At-Grade) Single-Lane		19th Ave legs have painted splitter islands. Completed 2008 or earlier (streetview). ICD estimated from Google Maps linework.
Winchester, VA Winchester City Co. United States	E Piccadilly St. / N East Ln. / National Ave. (39.18564, -78.16067)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.9204	Other (At-Grade) Single-Lane	2015	https://www.facebook.com/winchestervagov/posts/roundabout-at-national-avenuepiccadilly-street-intersection-is-really-beginning-/10153626945621055/. ICD estimated from Google Maps linework.
Columbus, IN Bartholomew Co. United States	11th St. / Lindsey St. / Brown St. (39.20836, -85.92443)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.4206	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	At-grade rail crossing on west leg (flashers, no gates). ICD estimated from Google Maps linework.
North Vernon, IN Jennings Co. United States	US 50 / IN 750 (39.01143, -85.60029)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.3289	Other (At-Grade) Single-Lane	2017	https://www.in.gov/indot/projects/2423.htm . ICD estimated from Google Maps linework.
Louisville, KY Jefferson Co. United States	Stony Farm Dr. / Stara Way (38.19654, -85.59588)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.3426	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Beckly, KY Jefferson Co. United States	Shelby Station Dr. / (unknown) (38.23829, -85.49049)	Other Existing	Other None	4 Approaches 0 Driveways 26.2662	Other (At-Grade) Single-Lane		No yield signs on major street. ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Potwin St. / S 135th St. (41.20792, -96.12274)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.5497	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	N 21st St. / Charles St. (41.27319, -95.94354)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.5192	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Weber St. / N 75th St. / N 76th St. (41.32636, -96.02877)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.2161	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Wenninghoff Rd. / Read St. (41.32367, -96.04434)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.3202	Other (At-Grade) Single-Lane	2008	No splitter islands on Read St. Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Wenninghoff Rd. / Sheffield St. / Craig Ave. (41.32955, -96.04776)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.4212	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Roanoke Blvd. / N 118 St. (41.30231, -96.09753)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.7109	Other (At-Grade) Single-Lane	2005	Older traffic circle (before 1993) with unknown traffic control. Appears to have been converted to a roundabout with splitter islands on north and south legs around 2005. ICD estimated from Google Maps linework.
Bennington, NE Douglas Co. United States	N 159th St. / Reynolds St. (41.33210, -96.16175)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 43.0471	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Bennington, NE Douglas Co. United States	N HWS Cleveland Blvd. / Hanover Falls Dr. (41.33836, -96.16366)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.3855	Other (At-Grade) Single-Lane	2008	Fourth leg stubbed. Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Bennington, NE Douglas Co. United States	Reynolds St. / N 153rd St. (41.33307, -96.15447)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.4200	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2003-2004). ICD estimated from Google Maps linework.
Bennington, NE Douglas Co. United States	Sheffield Dr. / N 153rd St. (41.33057, -96.15231)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 62.7785	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2006). ICD estimated from Google Maps linework.
Bennington, NE Douglas Co. United States	N 152nd St. / Vane St. (41.32290, -96.15098)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.0113	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Bennington, NE Douglas Co. United States	Vane St. / Iowa St. / N 153rd St. (41.32268, -96.15411)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 26.0114	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Bennington, NE Douglas Co. United States	Iowa St. / N 154th Ave. (41.32389, -96.15616)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 25.1140	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Bennington, NE Douglas Co. United States	Potter St. / Sheffield Dr. / N 155th Ave. (41.32832, -96.15678)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1123	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Bennington, NE Douglas Co. United States	N HWS Cleveland Blvd. / Reynolds St. (41.33176, -96.16864)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.9046	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Saddlebrook Dr. / N 147th St. / N 148th St. (41.31173, -96.14448)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.2954	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Fowler Ave. / N 160th St. (41.30164, -96.16345)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1225	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Butler Ave. / N 162nd St. (41.30070, -96.16730)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.1229	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	N 162nd St. / Grand Ave. (41.30399, -96.16881)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Single-Lane	2006
Omaha, NE Douglas Co. United States	Grand Ave. / N 166th St. (41.30237, -96.17353)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.3001	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	N 171st St. / Emmet St. (41.28947, -96.18274)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 22.4350	Other (At-Grade) Single-Lane	2003	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	N 172nd St. / Locust St. (41.28520, -96.18319)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.4365	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Elkhorn, NE Douglas Co. United States	Elk Ridge Dr. / Seward St. (41.27415, -96.22243)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.6519	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Elkhorn, NE Douglas Co. United States	N HWS Cleveland Blvd. / N 184th St. / Cuming St. (41.26800, -96.20306)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.4986	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Elkhorn, NE Douglas Co. United States	Indiana St. / N 184th St. / N 185th St. (41.27003, -96.20517)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.2370	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Elkhorn, NE Douglas Co. United States	N HWS Cleveland Blvd. / N 190th St. (41.26726, -96.21272)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 21.5450	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Elkhorn, NE Douglas Co. United States	Honeysuckle Dr. / N 188th St. (41.27365, -96.21011)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.1333	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Elkhorn, NE Douglas Co. United States	Capitol Ave. / Burke St. / Chicago St. (41.25969, -96.19899)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 48.4818	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Elkhorn, NE Douglas Co. United States	Capitol Ave. / S 186th Plaza (41.26027, -96.20354)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2769	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Elkhorn, NE Douglas Co. United States	S 185th St. / Farnam St. (41.25708, -96.20552)	Roundabout Existing	All-Way Yield None	4 Approaches 2 Driveways 23.3440	Other (At-Grade) Single-Lane	2004	Fourth leg stubbed. ICD estimated from Google Maps linework.
Elkhorn, NE Douglas Co. United States	S 184th St. / Jackson St. (41.25366, -96.20389)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2004
Elkhorn, NE Douglas Co. United States	S 182nd St. / Harney St. (41.25644, -96.19941)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 21.5485	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Elkhorn, NE Douglas Co. United States	Jones St. / S 182nd St. (41.25259, -96.20069)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1999-2003).
Elkhorn, NE Douglas Co. United States	S 183rd St. / Mason St. (41.24925, -96.20166)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.3468	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2002). ICD estimated from Google Maps linework.
West Omaha, NE Douglas Co. United States	Arbor St. / S 175th St. / Arbor Plaza (41.23620, -96.18888)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.2496	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2004-2005). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	HWS Cleveland Blvd. / Blue Sage Pkwy. / William St. (41.24547, -96.22489)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.3482	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003). Fourth leg added 2006-2009. ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	William St. / S 196th St. (41.24540, -96.22248)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.2462	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	S HWS Cleaveland Blvd. / Shadow Ridge Dr. (41.24046, -96.22126)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.8403	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	S HWS Cleveland Blvd. / Marinda St. (41.23787, -96.22116)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.9433	Other (At-Grade) Single-Lane	2002	Fourth leg stubbed. Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	S HWS Cleveland Blvd. / Gold St. (41.23532, -96.21996)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.1295	Other (At-Grade) Single-Lane	2006	Two legs stubbed. Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Fargo, ND Cass Co. United States	US 10 (Main Ave.) / 2nd St. (46.87393, -96.78088)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.3541	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	Opened October 2019. https://www.facebook.com/pg/FargoStreets/posts/. ICD estimated from Google Maps linework.
Albuquerque, NM Bernalillo Co. United States	Las Estancias Dr. / Las Estancias Way (35.01852, -106.71345)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.2778	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Albuquerque, NM Bernalillo Co. United States	Nunzio Ave. NW / Vista Fuente Rd. NW (35.18391, -106.67731)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.2362	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2008). ICD estimated from Google Maps linework.
Albuquerque, NM Bernalillo Co. United States	Monolith Dr. NW / Boulder Trl. Pl. NW (35.19212, -106.70888)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.3050	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2012). ICD estimated from Google Maps linework.
Albuquerque, NM Bernalillo Co. United States	Ventana Ridge Rd. NW / Ventana W Pkwy. NW (35.19845, -106.74948)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.0864	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2004-2005). ICD estimated from Google Maps linework.
Rio Rancho, NM Sandoval Co. United States	Country Club Dr. SE / Broadmoor Blvd. / Esplanade Cir. SE (35.24556, -106.67238)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.2618	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Rio Rancho, NM Sandoval Co. United States	Cherry Rd. NE / 17th Ave. NE (35.28760, -106.70361)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.1712	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2010). ICD estimated from Google Maps linework.
Rio Rancho, NM Sandoval Co. United States	Arena Dr. NE / HP Way NE (35.31009, -106.69007)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.1877	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Rio Rancho, NM Sandoval Co. United States	King Blvd. NE / Main St. NE (35.31189, -106.68624)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.2886	Other (At-Grade) Single-Lane	2007	Fourth leg stubbed. Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Rio Rancho, NM Sandoval Co. United States	King Blvd. NE / Park Dr. NE (35.31365, -106.68872)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.1100	Other (At-Grade) Single-Lane	2006	Fourth leg stubbed. Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Maryland Heights, MO St. Louis Co. United States	Casino Center Dr. / (casino parking) (38.75175, -90.47969)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 39.1195	Other (At-Grade) Multilane (2 Lane, unspecified)	1999	Yield on circulatory roadway. Year Completed estimated (1996-2002) ICD estimated from Google Maps linework.
Wentzville, MO St. Charles Co. United States	Schroeder Creek Blvd. / William Dierberg Dr. (38.82018, -90.86907)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.0819	Other (At-Grade) Single-Lane	2016	Paving was done in late 2016, but fully completed in 2017 -- https://www.wentzvillemo.org/departments/public_works/schroeder_creek_boulevard_extension_project.php . ICD estimated from Google Maps linework.
Wentzville, MO St. Charles Co. United States	Schroeder Creek Blvd. / (high school access) (38.81649, -90.86931)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.9451	Other (At-Grade) Single-Lane	2016	Paving was done in late 2016, but fully completed in 2017 -- https://www.wentzvillemo.org/departments/public_works/schroeder_creek_boulevard_extension_project.php . ICD estimated from Google Maps linework.
Wentzville, MO St. Charles Co. United States	Wilmer Valley Dr. / Wilmer Ridge Dr. (38.79278, -90.86444)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2675	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
O'Fallon, MO St. Charles Co. United States	Phoenix Pkwy. / Redhawk Pkwy. / Red Hawk Pl. (38.74510, -90.73630)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5341	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1996-2002). ICD estimated from Google Maps linework.
O'Fallon, MO St. Charles Co. United States	Phoenix Pkwy. / Phoenix Dr. / Boardwalk Place Dr. (38.74122, -90.73747)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5359	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1996-2002). ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Kendall Pkwy. / Aldrin Dr. (40.42884, -105.01002)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.9112	Other (At-Grade) Single-Lane	2019	Fourth leg stubbed. ICD estimated from Google Maps linework.
Castle Rock, CO Douglas Co. United States	Rising Sun Dr. / Autumn Sage St. (39.39210, -104.82736)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.0731	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2007). ICD estimated from Google Maps linework.
Castle Rock, CO Douglas Co. United States	Sapphire Pointe Blvd. / Sulfur Ln. / Peridot Ln. (39.42788, -104.84576)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 63.6545	Other (At-Grade) Single-Lane	2003	Single-stage pedestrian crossings, fully traversable splitter islands, no buffer between sidewalk and circulatory roadway. Year Completed estimated (2002-2005). ICD estimated from Google Maps linework.
Castle Rock, CO Douglas Co. United States	Sapphire Pointe Blvd. / Tremolite Dr. (39.42908, -104.85397)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 52.5832	Other (At-Grade) Single-Lane	2005	No buffer between sidewalk and circulatory roadway. ICD estimated from Google Maps linework.
Castle Pines, CO Douglas Co. United States	W Castle Pines Pkwy. / Pine Ridge Ln. / Buffalo Trl. (39.47283, -104.91386)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4238	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2008-2010). ICD estimated from Google Maps linework.
Castle Pines, CO Douglas Co. United States	Daniels Gate Dr. / Grigs Rd. (39.48770, -104.91860)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.7912	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1999-2002). ICD estimated from Google Maps linework.
Parker, CO Douglas Co. United States	Pavilion Dr. / (parking lots) (39.50940, -104.76748)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.6435	Other (At-Grade) Single-Lane	2003	Within shopping center. Year Completed estimated (2001-2004). ICD estimated from Google Maps linework.
Parker, CO Douglas Co. United States	Clubhouse Dr. / S Pikes Peak Dr. (39.51305, -104.76302)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5634	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1994-1999). ICD estimated from Google Maps linework.
Parker, CO Douglas Co. United States	Crown Crest Blvd. / Cottonwood Dr. (39.55051, -104.77237)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 50.6497	Other (At-Grade) Multilane (2 Lane, unspecified)	2001	Year Completed estimated (1999-2002). ICD estimated from Google Maps linework.
Carmel, IN Hamiloton Co. United States	96th St. / Gray Rd. / River Ridge Dr. (39.92693, -86.08871)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 47.6261	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	ICD estimated from Google Maps linework.
Aurora, CO Arapahoe Co. United States	Copperleaf Blvd. / S Tibet St. (39.62772, -104.72553)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.0740	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	ICD estimated from Google Maps linework.
Aurora, CO Arapahoe Co. United States	Copperleaf Blvd. / S Tempe St. (39.62637, -104.72778)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 43.2351	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	W Dartmouth Pl. / W Cornell Pl. / (high school access) (39.66034, -105.10813)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.2611	Other (At-Grade) Single-Lane	2006	https://www.denverpost.com/2006/08/03/on-the-side-84/ . ICD estimated from Google Maps linework.
Aurora, CO Arapahoe Co. United States	S Old Tom Morris Rd. / Catawba Cir. / (golf course parking lot) (39.68629, -104.70910)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.0875	Other (At-Grade) Single-Lane	2000	Windmill in central island. Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Aurora, CO Arapahoe Co. United States	E Florida Ave. / S De Gaulle Way / S Duquesne Ct. (39.69027, -104.70622)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 56.0618	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2003-2004). ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	Illinois St. / (unknown) (39.73540, -105.21057)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.5747	Other (At-Grade) Single-Lane	2002	Minimal splitter islands. No detectable warnings for the one pedestrian crossing. ICD estimated from Google Maps linework.
Arvada, CO Jefferson Co. United States	W 66th Ave. / W 66th Dr. (39.81516, -105.17026)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.6867	Other (At-Grade) Single-Lane	2007	Located 35 feet from adjacent stop-controlled intersection. No buffers between sidewalk and circulatory roadway. ICD estimated from Google Maps linework.
Westminster, CO Jefferson Co. United States	Reed St. / Promenade Dr. / (parking lot) (39.88726, -105.07719)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.7403	Other (At-Grade) Single-Lane	2004	Wapiti Circle (statue of small elk herd) installed in center island in 2005 -- https://www.waymarking.com/waymarks/WMDRJH_Wapiti_Circle_Westminster_CO . ICD estimated from Google Maps linework.
Elgin, SC Richland Co. United States	Jacobs Millpond Rd. / Woodcreek Farms Rd. (34.12103, -80.83451)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.7295	Other (At-Grade) Single-Lane	1999	Year Completed estimated (1994-2003). ICD estimated from Google Maps linework.
Columbia, SC Richland Co. United States	Lake Carolina Dr. / Centennial Dr. / Summit Ridge Dr. (34.16836, -80.87591)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.5862	Other (At-Grade) Single-Lane	2005	Very small splitter islands. ICD estimated from Google Maps linework.
West Columbia, SC Lexington Co. United States	Columbia Circle (Lexington Dr. / Boston Ave.) (33.94995, -81.11397)	Rotary Existing	All-Way Yield None	3 Approaches 0 Driveways 90.1561	Other (At-Grade) Single-Lane		Painted splitter islands on two legs. ICD estimated from Google Maps linework.
San Luis Obispo, CA San Luis Obispo Co. United States	Tank Farm Rd. / Righetti Ranch Rd. (35.25019, -120.63318)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.3341	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2018-2019). ICD estimated from Google Maps linework.
Aiken, SC Aiken Co. United States	Bonneville Circle (Trolley Run Blvd. / Market Station Blvd. / Keagan Blvd.) (33.58485, -81.77248)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 54.7226	Other (At-Grade) Single-Lane	2007	Right-turn-only lanes on all approaches; striped out outer lanes of circulatory roadway in front of each splitter island. Yield signs only on left side of entries. ICD estimated from Google Maps linework.
Aiken, SC Aiken Co. United States	Catenary Blvd. / Trolley Run Blvd. (33.59346, -81.77416)	Rotary Existing	All-Way Yield None	3 Approaches 0 Driveways 51.7326	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Striped out outer lane of circulatory roadway in front of splitter islands. Yield signs only on left side of entries. ICD estimated from Google Maps linework.
Aiken, SC Aiken Co. United States	E Gate Dr. / Bedford Pl. SW / Spencer Dr. (33.50671, -81.71833)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 52.7804	Other (At-Grade) Single-Lane		No splitter islands on two legs. ICD estimated from Google Maps linework.
Aiken, SC Aiken Co. United States	E Gate Dr. / Aiken Mall Dr. SW / (parking lot) (33.51065, -81.71479)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.8785	Other (At-Grade) Single-Lane	2000	Channelized right-turn lanes on all legs. No Left Turn signs under Yield signs. Year Completed estimated (1994-2005). ICD estimated from Google Maps linework.