Roundabouts Database

29411 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
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.
Longmont, CO
Boulder Co.
United States 		Sundance Dr. / Twilight Dr.
(40.19529, -105.06175) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2016 Initial construction without splitter islands 1999-2002. Splitter islands added 2016-2017.
Loveland, CO
Larimer Co.
United States 		Finch St. / Finch Pl.
(40.38717, -105.06164) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
15.4649 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Longmont, CO
Boulder Co.
United States 		Deerwood Dr. / Stardance Cir.
(40.16962, -105.06120) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
22.8158 		Other (At-Grade)
Single-Lane 		2003 Functional Class: Local ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		Seven Lakes Dr. / Madison Ave.
(40.42698, -105.05790) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
18.1832 		Other (At-Grade)
Single-Lane 		1995 Functional Class: Local ICD estimated from Google Maps linework.
Longmont, CO
Boulder Co.
United States 		Deerwood Dr. / Summer Hawk Dr.
(40.17087, -105.05720) 		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.
Erie, CO
Weld Co.
United States 		CW Bixler Blvd. / Washburn St.
(40.06230, -105.05650) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
20.1096 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Fort Collins, CO
Larimer Co.
United States 		Stanton Creek Dr. / St. Thomas Dr.
(40.49066, -105.05590) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
24.5241 		Other (At-Grade)
Single-Lane 		Functional Class: Local ICD estimated from Google Maps linework.
Edgewater, CO
Jefferson Co.
United States 		W 20th Ave. / Benton St.
(39.74763, -105.05562) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2022 Elliptical shaped. ICD = 100 ft x 85 ft.
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.
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.
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 		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 		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 		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.
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.
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
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).
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.
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 		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.
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.
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).
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/
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.
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.
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 		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
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