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
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
(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. / 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).
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).
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.
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.
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 		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.
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.
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.
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.
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).
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).
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.
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.
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).
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).
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.
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 		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 		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. / 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 		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.
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.
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 		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.
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.
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 		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 		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 		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.
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.
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.
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
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 		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.
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).
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.
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 		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.
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.
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.
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.
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 		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.
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. / 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.
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. / 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.
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
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
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.
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.
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.
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.
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.
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.
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
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.
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.
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.
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.
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/
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.
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.
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.
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.
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.
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.
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
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
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.
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).
Thornton, CO
Adams Co.
United States 		E 162nd Ave. / Grant St. / (parking)
(39.98980, -104.98308) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2007
Thornton, CO
Adams Co.
United States 		Grant St. / (parking)
(39.94597, -104.98307) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
60.9600 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2018 Year Completed estimated (2018-2019).
Thornton, CO
Adams Co.
United States 		Grant St. / E 141 Pl.
(39.95214, -104.98286) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9600 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2016 West leg added 2022-2023.
Windsor, CO
Larimer Co.
United States 		CR 5 / Oakmont St. / Oakmont Ln.
(40.48214, -104.98213) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2021 Year Completed estimated (2020-2021).
Windsor, CO
Larimer Co.
United States 		CR 5 / Westgate Dr. / E CR 32 E
(40.48667, -104.98201) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2021 Year Completed estimated (2020-2021).
Thornton, CO
Adams Co.
United States 		Grant St. / E 143rd Pl.
(39.95485, -104.98191) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9600 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2013 Opened with north and west legs 2013. South and east legs added 2015.
Thornton, CO
Adams Co.
United States 		Grant St. / E 146th Ave. / (parking)
(39.96090, -104.98184) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9600 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2018 Year Completed estimated (2018-2019).
Berthoud, CO
Weld Co.
United States 		CO 56 / I-25 SB Ramps
(40.30636, -104.98169) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2021 https://www.codot.gov/news/2021/november-2021/co56-i25-reopens-early
Berthoud, CO
Weld Co.
United States 		CO 56 / I-25 NB Ramps
(40.30632, -104.97848) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2021 https://www.codot.gov/news/2021/november-2021/co56-i25-reopens-early
Windsor, CO
Larimer Co.
United States 		Crystal Downs Dr. / Vernazza Way
(40.45625, -104.97811) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2017 Year Completed estimated (2016-2017).
Timnath, CO
Larimer Co.
United States 		Signal Tree Dr. / Timinath Trail Rd.
(40.52143, -104.97703) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2014-2015).
Timnath, CO
Larimer Co.
United States 		Signal Tree Dr. / Stone Fly Dr.
(40.51928, -104.97637) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2019 South leg stubbed. Year Completed estimated (2017-2019).
Littleton, CO
Arapahoe Co.
United States 		Franklin St. / Cherryville Rd.
(39.61832, -104.96920) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
8.2800 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Denver, CO
Denver Co.
United States 		Denver City Park
(39.74778, -104.95767) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Windsor, CO
Larimer Co.
United States 		Cherry Blossom Dr. / Stone Chase Dr.
(40.45095, -104.95728) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
22.7210 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Denver, CO
Denver Co.
United States 		Denver City Park
(39.74482, -104.95685) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Pedestrian access to central island.
Thornton, CO
Adams Co.
United States 		Elizabeth Circle
(39.98312, -104.95660) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Pedestrian access to central island.
Thornton, CO
Adams Co.
United States 		E 163rd Ave. / Elizabeth St.
(39.99121, -104.95523) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2017 Year Completed estimated (2017-2018).
Denver, CO
Denver Co.
United States 		Denver City Park
(39.74610, -104.95465) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Pedestrian access to central island.
Timnath, CO
Larimer Co.
United States 		Club Dr. / Innovate Pl.
(40.52134, -104.95463) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2008 Year Completed estimated (2006-2010).
Timnath, CO
Larimer Co.
United States 		Club Dr. / Grand Tree Blvd.
(40.52432, -104.95460) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		2006
Thornton, CO
Adams Co.
United States 		E 142nd Dr. / Adams St. / St Paul St.
(39.95444, -104.94953) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2006
Dacono, CO
Weld Co.
United States 		Flying Circle Blvd. / 6th St. / Collins Ct.
(40.08589, -104.94941) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter island on western leg. Oil well in center island.
Windsor, CO
Larimer Co.
United States 		Cherry Blossom Dr. / Blackwood Dr.
(40.45061, -104.94835) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
21.8122 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Windsor, CO
Larimer Co.
United States 		CR 13 / Steeplechase Dr. / New Liberty Rd.
(40.44570, -104.94420) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2019 https://nextdoor.com/agency-post/co/windsor/town-of-windsor/roundabout-construction-at-7th-new-liberty-begins-next-week-114483154/