Roundabouts Database Index

30320 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
Thornton, CO Adams Co. United States	Grant St. / E 140th Ave. / (parking) (39.94932, -104.98311)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 62.4840	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2018	Year Completed estimated (2018-2019).
Johnstown, CO Larimer Co. United States	Thompson Pkwy. / (parking lots) (40.40506, -104.98335)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.7405	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	ICD estimated from Google Maps linework.
Johnstown, CO Weld Co. United States	SH 60 / Gateway Cir. (40.33527, -104.98559)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 59.4360	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2024	Primary access to large travel and fuel center. Year Completed estimated (2023-2024).
Thornton, CO Adams Co. United States	Lincoln St. / E 141st Pl. / (parking) (39.95280, -104.98624)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2013
Loveland, CO Larimer Co. United States	E CR 16 / I-25 SB Ramps / CR 5 (I-25 Frontage Road) (40.36357, -104.98666)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2023	https://www.codot.gov/news/2023/april/90-day-temporary-closures-lcr16-at-i25-starting-april-12
Loveland, CO Larimer Co. United States	Clydesdale Pkwy. / Stallion Dr. (40.43774, -104.98796)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.2697	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2006-2010). ICD estimated from Google Maps linework.
Timnath, CO Larimer Co. United States	Weitzel St. / Swetsville Zoo Rd. (40.51930, -104.98815)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2022	Year Completed estimated (2021-2023).
Johnstown, CO Larimer Co. United States	CR 18 / NE Frontage Rd. / SE Frontage Rd. (40.37811, -104.98867)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.4911	Other (At-Grade) Single-Lane	2019	Opened to traffic October 18, 2019. 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.
Englewood, CO Arapahoe Co. United States	Englewood Pkwy. / S. Cherokee St. (39.65491, -104.99110)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 41.3782	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	E Crossroads Blvd. / I-25 NB Ramps (40.43597, -104.99138)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 38.1797	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2011	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Sky Pond Dr. / Mall Access Rd. / (parking lot) (40.41142, -104.99168)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways 55.4717	Other (At-Grade) Single-Lane	2005	Right-turn-only lane on southeast leg. ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Ketcher Rd. / SW Frontage Rd. (40.50855, -104.99242)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.reporterherald.com/2022/05/14/ketcher-road-bridge-over-i-25-to-reopen-may-18-following-seven-month-construction-closure/
Johnstown, CO Larimer Co. United States	CO 402 / I-25 NB Ramps (40.37813, -104.99255)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.4911	Freeway Ramps (Grade-Separated) Single-Lane	2019	Opened to traffic October 18, 2019. ICD estimated from Google Maps linework.
Northglenn, CO Adams Co. United States	Melody Dr. / Kennedy Dr. (39.89222, -104.99270)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.6541	Other (At-Grade) Single-Lane	1999	Roundabout is single-lane except for NB approach with separate RT lane. ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	E Crossroads Blvd. / I-25 SB Ramps (40.43596, -104.99335)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 40.9068	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2011	ICD estimated from Google Maps linework.
Johnstown, CO Larimer Co. United States	CO 402 / I-25 SB Ramps (40.37811, -104.99418)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.4010	Freeway Ramps (Grade-Separated) Single-Lane	2019	Opened to traffic October 18, 2019. ICD estimated from Google Maps linework.
Broomfield, CO Broomfield Co. United States	W 169th Ave. / Palisade Pkwy. (40.00437, -104.99443)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2014
Loveland, CO Larimer Co. United States	Byrd Dr. / Test Dr. (40.43198, -104.99591)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 47.2729	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	ICD estimated from Google Maps linework.
Littleton, CO Arapahoe Co. United States	Elati St. / Arapahoe Rd. (39.59515, -104.99770)	Traffic Calming Circle Existing	One-Way/Two-Way Stop None	4 Approaches 0 Driveways 11.0437	Other (At-Grade) Single-Lane		Functional Class: Collector ICD estimated from Google Maps linework.
Littleton, CO Arapahoe Co. United States	Elati St. / Briarwood St. (39.59236, -104.99770)	Traffic Calming Circle Existing	One-Way/Two-Way Stop None	4 Approaches 0 Driveways 5.5221	Other (At-Grade) Single-Lane		Functional Class: Collector ICD estimated from Google Maps linework.
Littleton, CO Arapahoe Co. United States	S Elati St. / W Davies Way (39.58691, -104.99775)	Traffic Calming Circle Existing	One-Way/Two-Way Stop Unknown	4 Approaches 0 Driveways 9.2042	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Frederick, CO Weld Co. United States	Aggregate Blvd. / Wyndham Hill Pkwy. (40.09242, -104.99890)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Single-Lane	2006	Right-turn-only lanes on north and south legs. Striped out portions of circulatory roadway.
Loveland, CO Larimer Co. United States	Rocky Mountain Ave. / Medical Center of the Rockies North (40.41752, -105.00030)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 47.2831	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Functional Class: Arterial ICD estimated from Google Maps linework.
Littleton, CO Arapahoe Co. United States	Powers Ave. / S Greenwood St. (39.61509, -105.00042)	Traffic Calming Circle Existing	One-Way/Two-Way Stop Unknown	4 Approaches 0 Driveways 35.8818	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Auraria, CO Denver Co. United States	Saint Francis Way / 11th St. (39.74196, -105.00110)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Broomfield, CO Broomfield Co. United States	W 138th Ave. / Kalamath St. / Maddox Ct. (39.94514, -105.00113)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 30.4800	Other (At-Grade) Single-Lane	2008
Loveland, CO Larimer Co. United States	Rocky Mountain Ave. / Medical Center of the Rockies South (40.41537, -105.00150)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 40.0100	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Functional Class: Arterial ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Cross Roads Blvd. / Rocky Mountain Ave. (40.43602, -105.00153)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 34.5435	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Rocky Mountain Ave. / Foxtrail Dr. (40.40924, -105.00230)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.9231	Other (At-Grade) Multilane (2 Lane, unspecified)	1994	Entrance to shopping center. Functional Class: Arterial ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Rocky Mountain Ave. / McWhinney Blvd. (40.41059, -105.00230)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.6504	Other (At-Grade) Multilane (2 Lane, unspecified)	1994	Adjacent to shopping center. Functional Class: Arterial ICD estimated from Google Maps linework.
Littleton, CO Arapahoe Co. United States	S Gallup St. / W Arapahoe Rd. (39.59517, -105.00233)	Traffic Calming Circle Existing	One-Way/Two-Way Stop Unknown	4 Approaches 0 Driveways 12.8843	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Rocky Mountain Ave. / Kendall Pkwy. / Artisan Dr. (40.42604, -105.00249)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 51.8230	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	ICD estimated from Google Maps linework.
Highlands Ranch, CO Douglas Co. United States	Park Central Dr. (39.55360, -105.00475)	Other Existing	Unknown Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Parking along circulatory roadway. Pedestrian access to central island.
Loveland, CO Larimer Co. United States	Kendall Pkwy. / John Glenn Dr. (40.42652, -105.00541)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2768	Other (At-Grade) Single-Lane	2019	Fourth leg stubbed. ICD estimated from Google Maps linework.
Englewood, CO Arapahoe Co. United States	W. Sheri Ln. / Belleview Park (39.62281, -105.00620)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 42.3174	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Denver, CO Denver Co. United States	Pecos St. / I-70 WB Ramps / W 48th Ave. (39.78374, -105.00637)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 52.3146	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Denver, CO Denver Co. United States	Pecos St. / I-70 EB Ramps (39.78281, -105.00640)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.2194	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Sheridan, CO Arapahoe Co. United States	River Point Pkwy. / S River Point Dr. (39.64776, -105.00790)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.6590	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Denver, CO Denver Co. United States	Chopper Cir. / VIP Parking / 9th St. / Access Rd (39.74721, -105.00810)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.3424	Other (At-Grade) Single-Lane	1999	Located at Pepsi Center arena Functional Class: Collector ICD estimated from Google Maps linework.
Broomfield, CO Broomfield Co. United States	W 138th Ave. / Quivas St. / Beacon St. (39.94559, -105.00860)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 32.0040	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2008-2010).
Broomfield, CO Adams Co. United States	W 122nd Ave. / N Park Centre Dr. (39.92089, -105.01002)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2002	North leg stubbed. Year Completed estimated (2001-2003).
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.
Sheridan, CO Arapahoe Co. United States	River Point Pkwy. / S Platte River Dr. (39.65176, -105.01060)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 46.8975	Other (At-Grade) Single-Lane	2008	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
Littleton, CO Arapahoe Co. United States	W. Caley Ave. / S. Spotswood St. (39.60239, -105.01160)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 23.9256	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Littleton, CO Arapahoe Co. United States	W Caley Ave. / S Spotswood St. (39.60239, -105.01162)	Traffic Calming Circle Existing	One-Way/Two-Way Stop Unknown	4 Approaches 0 Driveways 57.0533	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Long Pine Lake Dr. / Bluestem Willow Dr. (40.42036, -105.01331)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.9146	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	E Mulberry Street Frontage Rd. / Greenfield Dr. (40.58247, -105.01497)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2024
Loveland, CO Larimer Co. United States	Mirror Lake Dr. / N Park Dr. / S Park Dr. (40.42746, -105.01554)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2020
Loveland, CO Larimer Co. United States	Kendall Pkwy. / Mirror Lake (40.42922, -105.01640)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.5475	Other (At-Grade) Single-Lane	2019	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Trapper Lake Dr. / Deering Lake Dr. (40.42471, -105.01741)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2020
Loveland, CO Larimer Co. United States	Plum Creek Dr. / Piney River Dr. (40.41253, -105.01850)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.0994	Other (At-Grade) Single-Lane	2001	Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Kechter Rd. / Ziegler Rd. (40.50920, -105.01979)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7818	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	E Horsetooth Rd. / Ziegler Rd. (40.53777, -105.02020)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.4912	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Year Completed estimated (2007-2009). ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	CR 9 / CR 30 (40.46569, -105.02033)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.7110	Other (At-Grade) Single-Lane	2009	Long splitter islands. Year Completed estimated (2009-2011). ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Boyd Lake Dr. / Kendall Pkwy. / Whitebark Pl. (40.43079, -105.02040)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.8191	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Boyd Lake Ave. / Long Pine Lake Dr. / Frank Rd. (40.41940, -105.02089)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 43.6447	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	N. Boyd Lake Dr. / Mountain Lion Dr. (40.40535, -105.02098)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 110.0440	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	East leg stubbed. ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Boyd Lake Ave. / Lost Creek Dr. (40.41446, -105.02100)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 37.2826	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	West leg stubbed for future road. ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Boyd Lake Ave. (CR 9) / E 15th St. (40.40931, -105.02103)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, unspecified)	2020
Loveland, CO Larimer Co. United States	Valley Oak Dr. / Clearwater Dr. (40.44328, -105.02180)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 34.5398	Other (At-Grade) Single-Lane	2000	Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Harvest Park, CO Larimer Co. United States	Corbett Dr. / County Fair Ln. (40.51292, -105.02375)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2003	Painted splitter islands. Year Completed estimated (1999-2005).
Harvest Park, CO Larimer Co. United States	Corbett Dr. / Rock Creek Dr. (40.51549, -105.02378)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2003	Painted splitter islands. Year Completed estimated (1999-2005).
Fort Collins, CO Larimer Co. United States	E Trilby Rd. / Zephyr Rd. (40.50153, -105.02384)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6832	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2015). ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Corbett Dr. / Council Tree Ave. (40.52547, -105.02685)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.3132	Other (At-Grade) Single-Lane	2007	Right-turn-only lane on south leg. Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Harvest Park, CO Larimer Co. United States	Rock Creek Dr. / Old Mill Rd. (40.51549, -105.02751)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2003	Painted splitter islands. Year Completed estimated (1999-2005).
Harvest Park, CO Larimer Co. United States	Old Mill Rd. / County Fair Ln. (40.51291, -105.02753)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2003	Painted splitter islands. Year Completed estimated (1999-2005).
Westminster, CO Adams Co. United States	W 68th Ave. / Creekside Dr. / Hooker St. (39.82018, -105.02873)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.6021	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Rigden Pkwy. / Custer Dr. (40.54863, -105.02960)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.9307	Other (At-Grade) Single-Lane	2001	Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Erie, CO Weld Co. United States	Vista Pkwy. / Mountain View Blvd. (40.00784, -105.03110)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 27.4441	Other (At-Grade) Single-Lane	2006	Northbound right turn bypass lane. Functional Class: Local ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Sculptor Dr. / Corvus Dr. (40.39647, -105.03130)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 37.2926	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Snow Mesa Dr. / (parking) (40.52404, -105.03198)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2007
Loveland, CO Larimer Co. United States	Aries Dr. / Saint John Pl. (40.39440, -105.03312)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 21.8305	Other (At-Grade) Single-lane w/ Traversable Central Island	2013	Year Completed estimated (2012-2014). Appears to be a mini-roundabout but cannot verify at ground level. ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Sculptor Dr. / (unknown) / (parking lot) (40.40465, -105.03520)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 59.1152	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Erie, CO Weld Co. United States	Colliers Blvd. / Colliers Pkwy. / Orion Cir. (40.04713, -105.03536)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2014).
Littleton, CO Douglas Co. United States	Eagle River St. / Williamsburg St. (39.50250, -105.03622)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2017-2018).
(unincorporated), CO Douglas Co. United States	Titan Rd. / Eagle River St. (39.50721, -105.03658)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 51.6027	Other (At-Grade) Single-Lane	2017	Roundabout has been constructed, but is not being fully utilized yet until the Sterling Ranch development is complete. ICD estimated from Google Maps linework.
Littleton, CO Douglas Co. United States	Eagle River St. / Blue River Ave. (39.50434, -105.03678)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2017
Loveland, CO Larimer Co. United States	Emerald St. / Lapis Pl. (40.39611, -105.03932)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 16.7640	Other (At-Grade) Single-lane w/ Traversable Central Island	2020
Loveland, CO Larimer Co. United States	Turquoise St. / Lapis Pl. (40.39765, -105.03948)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 16.7640	Other (At-Grade) Single-lane w/ Traversable Central Island	2020
Fort Collins, CO Larimer Co. United States	CR 30 / CR 11 (S Timberline Rd.) (40.46567, -105.03951)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.5283	Other (At-Grade) Single-Lane	2015	Long splitter islands. Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	E. 13th St. / (unknown) / (parking lot) (40.40565, -105.03960)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 132.7798	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Erie, CO Weld Co. United States	Lehigh Cir. / Bonanza Dr. (40.03702, -105.04080)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 29.2612	Other (At-Grade) Single-Lane	2006	Functional Class: Local ICD estimated from Google Maps linework.
Westminster, CO Adams Co. United States	W 117th Ave. / Quitman St. (39.90885, -105.04229)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2005
Penrose, CO Fremont Co. United States	SR 115 / US 50 EB Ramps (38.41802, -105.04263)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2024	https://krdo.com/news/top-stories/2024/07/02/traffic-roundabout-now-open-at-interchange-of-us-50-highway-115-in-fremont-county/
Littleton, CO Douglas Co. United States	Middle Fork St. / Garden City Ave. (39.49889, -105.04348)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2018).
Linden Park, CO Larimer Co. United States	Fossil Creek Circle (40.49945, -105.04367)	Other Existing	Unknown Unknown	6 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Pedestrian access to central island.
Loveland, CO Larimer Co. United States	CR 30 / CR 11C (40.46562, -105.04412)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.6197	Other (At-Grade) Single-Lane	2015	Long splitter islands. Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	CR 11C / E 57th St. (40.45099, -105.04418)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.3535	Other (At-Grade) Single-Lane	2019	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.
Littleton, CO Douglas Co. United States	Middle Fork St. / Mt Jackson St. (39.49687, -105.04533)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2018).
Littleton, CO Douglas Co. United States	Chatfield Lake Rd. / Eagle River St. / (unknown) (39.51555, -105.04585)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2020
Loveland, CO Larimer Co. United States	Seven Lakes Dr. / Horseshoe Dr. (40.42844, -105.05100)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 20.0011	Other (At-Grade) Single-Lane	1996	Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Silverwood Dr. / Centennial Rd. (40.54545, -105.05120)	Traffic Calming Circle Removed	All-Way Yield None	4 Approaches 0 Driveways 31.7646	Other (At-Grade) Single-Lane		Small almost mini-roundabout used for traffic calming measure. People drove through plastic posts, rendering roundabout useless; idea scrapped in less than 6 mo. Functional Class: Collector ICD estimated from Google Maps linework.
Littleton, CO Douglas Co. United States	Chatfield Lake Rd. / N Roxborough Park Rd. (39.52660, -105.05232)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.1960	Other (At-Grade) Single-Lane	2020	Merging right-turn bypass lane on south leg.
Fort Collins, CO Larimer Co. United States	Mt. Vernon Ct. / New Bedford Dr. / Ticonderoga Dr. (40.53008, -105.05420)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 25.4175	Other (At-Grade) Single-Lane		Small almost mini roundabout, not very functional. Has small central island and no splitter islands only haching and road markings. Functional Class: Collector ICD estimated from Google Maps linework.
Littleton, CO Douglas Co. United States	N Roxborough Park Rd. / Bright Sky Ln. (39.52370, -105.05422)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2020
Fort Collins, CO Larimer Co. United States	Stanton Creek Dr. / Tortola Way (40.48999, -105.05430)	Traffic Calming Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 25.4327	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	E Lincoln Ave. / Cordova Rd. / (apartment access) (40.58852, -105.05439)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.9999	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2016-2017). ICD estimated from Google Maps linework.