Roundabouts Database Index

29616 Results

Search by location, intersection, and comments with the Quick Search below. You can search all other attributes by clicking Advanced Search. Sort results by clicking the headers of any column. Click the Intersection name for a details and aerial view. Search results pages can be bookmarked. Results can be exported to KML for viewing in Google Earth.

City, State County Country	Intersection (Lat, Lng)	Type Status	Control Type / Other Control Type	Approaches / Driveways / ICD (m)	Functional Class / LaneType	Year Completed	Comments
Golden, CO Jefferson Co. United States	S. Golden Rd. / Lunnonhaus Dr. (39.74062, -105.19840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Small two-lane roundabout but with nontraversable central island.
Golden, CO Jefferson Co. United States	S. Golden Rd. / Utah St. (39.73919, -105.19620)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.8782	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	S. Golden Rd. / Ulysses St. (39.73771, -105.19390)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.5734	Other (At-Grade) Single-Lane	1998	Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Main entrance to shopping center. Functional Class: Arterial ICD estimated from Google Maps linework.
Canon City, CO Fremont Co. United States	Dozier Ave. / Fremont Dr. (38.44797, -105.19374)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 28.0610	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2019). ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	S Golden Rd. / Quaker St. (39.73535, -105.18435)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.5534	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Golden, CO Jefferson Co. United States	S Golden Rd. / Moss St. / Research Rd. (39.73392, -105.17606)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.4724	Other (At-Grade) Single-Lane	2012	Yield-controlled right-turn bypass lane on east leg. ICD estimated from Google Maps linework.
Upper Clover Basin, CO Boulder Co. United States	Mountain Dr. / Boundary Pl. (40.14560, -105.17468)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2015).
Lower Clover Basin, CO Boulder Co. United States	Portico Ln. / Portico Pl. (40.13727, -105.17304)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands on two legs.
Poplar, MT Roosevelt Co. United States	US 2 / 13th Ave. E (48.11433, -105.17243)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2014-2021).
Superior, CO Boulder Co. United States	5th Ave. / Center Dr. (39.95764, -105.17190)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.1262	Other (At-Grade) Single-Lane	1999	Serves Costco and Target as part of 750,000 square foot shopping center. Functional Class: Local ICD estimated from Google Maps linework.
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.
Lakewood, CO Jefferson Co. United States	S Indiana St. / W Wesley Ave. (39.67204, -105.16890)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.0944	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Upper Clover Basin, CO Boulder Co. United States	Clover Basin Dr. / Eagan Way / Eagan Cir. (40.14043, -105.16769)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2014
Superior, CO Boulder Co. United States	McCaslin Blvd. / Coalton Rd. (39.92872, -105.16582)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.1393	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Superior, CO Boulder Co. United States	McCaslin Blvd. / Main St. (39.95173, -105.16511)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.2711	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	West leg stubbed for future. ICD estimated from Google Maps linework.
Superior, CO Boulder Co. United States	Main St. / Gateway Dr. (39.95169, -105.16353)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2017	Elliptical shape.
Arvada, CO Jefferson Co. United States	W 87th Dr. / W 87th Pkwy. / W 88th Loop (39.85512, -105.16070)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0896	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Arvada, CO Jefferson Co. United States	W 87th Pkwy. / Ellis St. (39.85537, -105.15826)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.0895	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Whisper Creek, CO Jefferson Co. United States	W 87th Dr. / W 87th Ln. (39.85326, -105.15802)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Arvada, CO Jefferson Co. United States	Ellis St. / W 89th Loop / W 89th Pl. (39.85736, -105.15782)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.8391	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Applewood, CO Jefferson Co. United States	W. 32nd Ave. / Eldridge St. (39.76180, -105.15660)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 29.3790	Other (At-Grade) Single-Lane	2005	North leg serves golf course parking lot. ICD estimated from Google Maps linework.
Dakota Ridge, CO Jefferson Co. United States	W Belleview Ave. / Quincy Ave. (39.62415, -105.15506)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 39.6240	Other (At-Grade) Single-Lane	2007	Right-turn bypass lanes on north and east legs.
Whisper Creek, CO Jefferson Co. United States	W 87th Dr. / W 87th Terrace (39.85449, -105.15278)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Loveland, CO Larimer Co. United States	Cedar Valley Dr. / Deer Meadow Dr. (40.40159, -105.15175)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 27.2852	Other (At-Grade) Single-Lane	2003	Year Completed estimated (1999-2004). ICD estimated from Google Maps linework.
Arvada, CO Jefferson Co. United States	W 87th Pkwy. / Beech St. (39.85567, -105.15060)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.1725	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	Arbutus Dr. / Red Rocks Community College (39.71903, -105.14840)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.7465	Other (At-Grade) Single-Lane	2001	Functional Class: Collector ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Rossum Dr. / Cedar Valley Dr. / St. Andrews Dr. (40.40005, -105.14791)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 20.0096	Other (At-Grade) Single-Lane		No splitter islands. Completed before 1999. ICD estimated from Google Maps linework.
Superior, CO Boulder Co. United States	Rock Creek Pkwy. / 88th St. (39.93764, -105.14780)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 47.6187	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	Arbutus Dr. / W. 2nd Pl. (39.71649, -105.14750)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.5609	Other (At-Grade) Single-Lane	2001	Functional Class: Collector ICD estimated from Google Maps linework.
Littleton, CO Jefferson Co. United States	S Zang St. / Robert Easton Park (39.60735, -105.14731)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.6044	Other (At-Grade) Single-Lane	2006	3rd leg added around 2012, Built for future 4th Leg. ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Rossum Dr. / Mariana Hills Cir. / Mariana Ridge Ct. (40.40225, -105.14134)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2017
Loveland, CO Larimer Co. United States	Scenic Dr. / Lookout Dr. (40.39773, -105.13528)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	1998	Painted splitter islands; unmarked pedestrian crossings along circulatory roadway.
Loveland, CO Larimer Co. United States	Scenic Dr. / Foothills Dr. (40.39674, -105.13522)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	1998	Painted splitter islands; unmarked pedestrian crossings along circulatory roadway.
Lafayette, CO Boulder Co. United States	Roser Dr. / Crater Lake Ln. / Murphy Creek Dr. (39.99879, -105.13387)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2008-2010).
Fort Collins, CO Larimer Co. United States	Cuerto Ln. / (unknown) (40.57718, -105.13330)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 26.3067	Other (At-Grade) Single-Lane	2005	Functional Class: Local ICD estimated from Google Maps linework.
Broomfield, CO Adams Co. United States	Zang St. / (parking lot #1) (39.92782, -105.13320)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 36.6350	Other (At-Grade) Single-Lane	2001	Serves commercial development. ICD estimated from Google Maps linework.
Littleton, CO Jefferson Co. United States	S Union Ct. / S Ida Ave. (39.61175, -105.13316)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.0433	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Monte Vista Dr. West / W. 22nd St. (40.41449, -105.13290)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 26.3706	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Monte Vista Dr. East / W. 22nd St. (40.41451, -105.13180)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 24.5519	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Broomfield, CO Adams Co. United States	Zang St. / (parking lot #2) (39.92641, -105.13170)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 35.7199	Other (At-Grade) Single-Lane	2001	Serves commercial development. ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Crestone Dr. / Foothills Dr. (40.39717, -105.13149)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	1997	Painted splitter islands; unmarked pedestrian crossings along circulatory roadway.
Fort Collins, CO Larimer Co. United States	Tierra Ln. / Saddle Ridge Condominiums (40.57545, -105.13140)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 28.1217	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	W 1st St. / Crestone Dr. / CR 21 (40.39286, -105.13140)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.0604	Other (At-Grade) Single-Lane	2020	https://nextdoor.com/agency-post/co/loveland/city-of-loveland/residents-advised-to-plan-alternate-route-for-2-week-closure-at-1st-street-crestone-dr-163995294/
Louisville, CO Boulder Co. United States	Roser Dr. / W Hecla Dr. / Paschal Dr. (39.99411, -105.13074)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2011
Columbine, CO Jefferson Co. United States	S. Simms St. / Nelson St. (39.64159, -105.12910)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 38.6271	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Right turn bypass lanes on three legs. 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.
Loveland, CO Larimer Co. United States	Tiger Ave. / Angora Dr. (40.37680, -105.12750)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 28.2050	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Nucla Ave. / Parlin St. / Parlin Ct. (40.41230, -105.12657)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.5527	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Rio Blanco Ave. / Parlin St. (40.41231, -105.12560)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.4621	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Louisville, CO Boulder Co. United States	E Hecla Dr. / Snowberry Ln. (39.99167, -105.12415)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2008).
Louisville, CO Boulder Co. United States	E Hecla Dr. / Golden Eagle Way / Rose Ct. (39.99337, -105.12375)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2008).
Loveland, CO Larimer Co. United States	Tacanecy Dr. / Marcy Dr. (40.39230, -105.12140)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 29.1082	Other (At-Grade) Single-Lane	1995	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	New Castle Dr. / Tabernash Dr. (40.42599, -105.12010)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 24.5477	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Rodin Dr. / Da Vinci Dr. (40.44219, -105.11912)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-lane w/ Traversable Central Island	2020
Loveland, CO Larimer Co. United States	Wilson Ave. / Melissa Dr. (40.37793, -105.11596)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 17.2867	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2005). ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	N Taft Hill Rd. / CR 70 / CR 19 (40.75500, -105.11504)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 37.0933	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	W Vine Dr. / N Taft Hill Rd. (40.59652, -105.11480)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7403	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Glen Isle Dr. / Glendale Dr. (40.43433, -105.11460)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	1995	No splitter islands on side street.
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.
Loveland, CO Larimer Co. United States	Glen Isle Dr. / Buckingham Cir. (40.43580, -105.10680)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 64.5421	Other (At-Grade) Single-Lane	1997	Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	US 287-SR 14 / US 287 Business (40.62610, -105.10657)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 59.8267	Other (At-Grade) Single-Lane	2019	https://www.coloradoan.com/story/news/2019/05/13/highway-287-construction-project-north-fort-collins-cdot/1189772001/ ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Redmesa Ave. / Egnar St. (40.44530, -105.10048)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-lane w/ Traversable Central Island	2020
Loveland, CO Larimer Co. United States	Taft Farms Pl. / Rangeland Ave. (40.44756, -105.09726)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 59.0775	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	W Vine Dr. / N Shields St. (40.59630, -105.09579)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.1817	Other (At-Grade) Single-Lane	2015	Streetview shows it under construction in Jul 2015. ICD estimated from Google Maps linework.
Berthoud, CO Larimer Co. United States	N Berthoud Pkwy. / Woodcock St. (40.34689, -105.09527)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.4098	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	Fourth approach stubbed. Year Completed estimated (2016-2017). ICD estimated from Google Maps linework.
Berthoud, CO Larimer Co. United States	N Berthoud Pkwy. / Grand Market Ave. / Urban Pl. (40.33801, -105.09346)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.6078	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Year Completed estimated (2018-2019). ICD estimated from Google Maps linework.
Quail, CO Boulder Co. United States	Boston Ave. (S. Martin St.) / (parking) (40.15350, -105.09292)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Oval shaped. ICD = 170 feet x 130 feet. Northbound left-turn-only lane signed but not marked on approach. Year Completed estimated (2006-2007).
Quail, CO Boulder Co. United States	Boston Ave. / (parking) (40.15114, -105.09285)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2006	Right-turn-only lane on north leg. Year Completed estimated (2005-2006). South leg added 2016-2017.
Quail, CO Boulder Co. United States	Boston Ave. / Junction Dr. (40.14998, -105.09200)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2016-2017).
Longmont, CO Boulder Co. United States	S Martin St. / Bountiful Ave. (40.14740, -105.08831)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2017
Lafayette, CO Boulder Co. United States	Casper Dr. / Cody Ct. (39.98213, -105.08776)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
East Side, CO Boulder Co. United States	E 21st Ave. / Alpine St. (40.19588, -105.08752)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2005).
Lakewood, CO Jefferson Co. United States	Allison Pkwy. / Civic Center (39.70906, -105.08630)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 31.2390	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Lafayette, CO Boulder Co. United States	Casper Dr. / Saratoga Dr. (39.98211, -105.08539)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Lafayette, CO Boulder Co. United States	Cheyenne Dr. / Saratoga Dr. (39.98066, -105.08535)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Lakewood, CO Jefferson Co. United States	S. Allison Pkwy. / W. Virginia Ave. (39.70705, -105.08390)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways 33.9964	Other (At-Grade) Single-Lane	2000	Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	Oval Dr. (Howes St. / Plum St. / Isotope Dr. / East Dr. / Music Dr.) (40.57639, -105.08070)	Other Existing	Unknown Unknown	6 Approaches 0 Driveways 19.0499	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Harrison Ave. / W 65th St. (40.45845, -105.08018)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.9844	Other (At-Grade) Single-Lane	2011	Right-turn bypass lane on east leg. ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	N Garfield Ave. / W 7th St. (40.39864, -105.07792)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 15.4623	Other (At-Grade) Single-lane w/ Traversable Central Island	2016	ICD estimated from Google Maps linework.
Denver, CO Jefferson Co. United States	S Upham St. / S Evans Ave. (39.67841, -105.07776)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2016
Fort Collins, CO Larimer Co. United States	College Ave. / Laporte Ave. (40.58899, -105.07720)	Other Removed	Unknown Unknown	4 Approaches 0 Driveways 26.3021	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.
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.
University Park, CO Larimer Co. United States	E Laurel St. / Remington St. (40.57810, -105.07559)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-lane w/ Traversable Central Island	2015	Year Completed estimated (2014-2016).
Erie, CO Boulder Co. United States	Erie Pkwy. / 119th St. (40.03679, -105.07454)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2008	Right-turn-only lane on south leg. Year Completed estimated (2008-2010).
Fort Collins, CO Larimer Co. United States	E Willox Ln. / (parking lots) (40.61064, -105.07447)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.9203	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011). ICD estimated from Google Maps linework.
Westminster, CO Jefferson Co. United States	Circle Point Rd. (39.89729, -105.07433)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Berthoud, CO Larimer Co. United States	1st St. / Mountain Ave. / CR 8-CR 56 (40.30540, -105.07433)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.6997	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2008-2011). ICD estimated from Google Maps linework.
Denver, CO Jefferson Co. United States	S Reed St. / S Pierce Way (39.68087, -105.07380)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2017-2018).
Edgewater, CO Jefferson Co. United States	Pierce St. / W 24th Ave. (39.75123, -105.07204)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://edgewaterecho.com/2022/03/new-roundabout-open-at-24th-avenue-and-pierce-street/
Loveland, CO Larimer Co. United States	Monroe Ave. / E 37th St. (40.43012, -105.06809)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.5469	Other (At-Grade) Single-Lane	2019	Opened to traffic October 18, 2019. ICD estimated from Google Maps linework.
Lakewood, CO Jefferson Co. United States	Lamar St. / W 14th Ave. (39.73850, -105.06733)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2014	Fire station driveway at end of radius on northwest corner.
Erie, CO Boulder Co. United States	Jasper Rd. / Lombard St. (40.05485, -105.06504)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2021	Year Completed estimated (2020-2021).
Longmont, CO Boulder Co. United States	Sundance Dr. / Galapagos Pl. (40.20011, -105.06468)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017).
Longmont, CO Boulder Co. United States	Sundance Dr. / Tyrrhenian Dr. (40.20202, -105.06468)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017).
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.
Longmont, CO Boulder Co. United States	Sundance Dr. / Tyrrhenian Cir. (40.19784, -105.06451)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017).
Westminster, CO Adams Co. United States	Promenade Dr. S. / (TBD) (39.89188, -105.06330)	Traffic Calming Circle Existing	Unknown Unknown	2 Approaches 0 Driveways 20.1598	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Longmont, CO Boulder Co. United States	Deerwood Dr. / Windflower Dr. (40.17093, -105.06300)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 25.5532	Other (At-Grade) Single-Lane	2003	Functional Class: Local ICD estimated from Google Maps linework.
Edgewater, CO Jefferson Co. United States	W 20th Ave. / Harlan St. (39.74762, -105.06264)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://edgewaterecho.com/2022/01/new-roundabout-at-20th-and-harlan-opening-tuesday-february-1/
Littleton, CO Jefferson Co. United States	S Platte Canyon Rd. / S Kendall Blvd. / W Chatfield Ave. (39.56787, -105.06207)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.3029	Other (At-Grade) Single-Lane	2018	Merging right-turn bypass lanes on west and south legs. Year Completed estimated (2017-2018). ICD estimated from Google Maps linework.