| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Boulder,
                CO Boulder Co. United States | Cherryvale Rd. / Oreg St. (40.01320, -105.21292) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 26.5272 | Other (At-Grade) Single-Lane | 2015 | 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. | 
| 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. | 
| Larkspur,
                CO Douglas Co. United States | Bear Dance Dr. / Sky View Ln. / Elk View Rd. / Lake Dr. (39.27054, -104.90711) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.4367 | Other (At-Grade) Single-Lane | 2003 | Year Completed estimated (2002-2004). ICD estimated from Google Maps linework. | 
| (unincorporated),
                CO Douglas Co. United States | Meridian Village Pkwy. / Bristleridge Dr. (39.53102, -104.82616) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.2946 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| (unincorporated),
                CO Douglas Co. United States | Meridian Village Pkwy. / Ashgrove Dr. (39.52786, -104.82450) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.3754 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| (unincorporated),
                CO Douglas Co. United States | Meridian Village Pkwy. / Rutledge Ln. (39.52471, -104.82329) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.4561 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| (unincorporated),
                CO Douglas Co. United States | W Happy Canyon Rd. / Castle Pines Dr. (39.42838, -104.90106) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.8306 | Other (At-Grade) Single-Lane | 2011 | ICD estimated from Google Maps linework. | 
| (unincorporated),
                CO Douglas Co. United States | Happy Canyon Rd. / Castle Pines Dr. S (39.43975, -104.88723) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.1278 | Other (At-Grade) Single-Lane | 2011 | ICD estimated from Google Maps linework. | 
| (unincorporated),
                CO Douglas Co. United States | Fox Sparrow Rd. / Windhaven Dr. (39.43781, -104.73199) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 26.7495 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| (unincorporated),
                CO Douglas Co. United States | Blackgum St. / Golden Eye Ave. (39.56456, -104.80327) | Traffic Calming Circle Existing | All-Way Yield None | 3 Approaches 0 Driveways 31.3044 | Other (At-Grade) Single-Lane | 2001 | No splitter islands. Year Completed estimated (1999-2002). ICD estimated from Google Maps linework. | 
| (unincorporated),
                CO Douglas Co. United States | Lioness Way / Lioness Pl. (39.53520, -104.84861) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.5287 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Henderson,
                CO Adams Co. United States | E 96th Ave. / I-76 NB Ramps / Brighton Rd. / I-76 Frontage Rd. (39.87074, -104.90024) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 68.7479 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | Year Completed estimated (2008-2010). ICD estimated from Google Maps linework. | 
| Henderson,
                CO Adams Co. United States | E 96th Ave. / I-76 WB Ramps / Brighton Rd. / I-76 Service Rd. (39.87079, -104.90301) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 65.0813 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | Year Completed estimated (2008-2010). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Bromley Ln. / Medical Center Dr. (39.97238, -104.75449) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 40.2723 | Other (At-Grade) Single-Lane | 2008 | Year Completed estimated (2008-2010). ICD estimated from Google Maps linework. | 
| Centennial,
                CO Arapahoe Co. United States | S Peoria St. / E Peakview Ave. (39.59674, -104.84809) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.8116 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2013 | ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Nelson Blvd. / Harr Ave. (38.73903, -104.80268) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.1948 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Avon,
                CO Eagle Co. United States | William J Post Blvd. / Swift Gulch Rd. (39.62841, -106.49309) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 34.0351 | Other (At-Grade) Single-Lane | 2007 | Year completed estimated. ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | Eby Creek Rd. / Chambers Ave. (39.65871, -106.82638) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 45.9733 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2013 | Estimated year completed; built sometime between 2011 and 2015. ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | Eby Creek Rd. / I-70 EB Ramps (39.65961, -106.82719) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 37.6976 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2013 | Right-turn bypass lane in southeast quadrant. Estimated year completed; built sometime between 2011 and 2015. ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | Eby Creek Rd. / I-70 WB Ramps (39.66068, -106.82819) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 32.1804 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2013 | Estimated year completed; built sometime between 2011 and 2015. ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | Eby Creek Rd. / Market St. (39.66135, -106.82905) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 29.4218 | Other (At-Grade) Single-Lane | 2013 | Estimated year completed; built sometime between 2011 and 2015. ICD estimated from Google Maps linework. | 
| Eagle,
                CO Eagle Co. United States | US 6 / Sylvan Lake Rd. / Violet Ln. (39.64773, -106.83799) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 42.3021 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Estimated year completed. ICD estimated from Google Maps linework. | 
| Edwards,
                CO Eagle Co. United States | Beard Creek Rd. / Berry Creek Rd. (39.65095, -106.58730) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 27.5871 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Edwards,
                CO Eagle Co. United States | Edwards Access Rd. / Beard Creek Rd. / I-70 WB Ramps (39.64991, -106.58720) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.3812 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2010 | ICD estimated from Google Maps linework. | 
| Edwards,
                CO Eagle Co. United States | Edwards Access Rd. / I-70 EB Ramps (39.64891, -106.58780) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.7034 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2010 | ICD estimated from Google Maps linework. | 
| Edwards,
                CO Eagle Co. United States | Edwards Access Rd. / Miller Ranch Rd. (39.64800, -106.58850) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.4627 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Antelope Ridge Dr. / Blue Vail Way (38.90824, -104.68610) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.5986 | Other (At-Grade) Single-Lane | 2006 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Snowmass Village,
                CO Pitkin Co. United States | Wood Rd. / Carriage Way (39.21000, -106.94756) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 40.7179 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2016 | ICD estimated from Google Maps linework. | 
| Denver,
                CO Denver Co. United States | Sports Blvd. / Wright St. (39.71698, -104.89131) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 18.3738 | Other (At-Grade) Single-Lane | 1997 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| Denver,
                CO Denver Co. United States | Sports Blvd. / Great Lawn Dr. (39.71922, -104.88740) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 15.6172 | Other (At-Grade) Single-Lane | 1997 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| Aurora,
                CO Denver Co. United States | Yosemite Way. / First Ave. / Dayton St. (39.71878, -104.87592) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 49.6079 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | ICD estimated from Google Maps linework. | 
| 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. | 
| 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 | 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 | 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. | 
| Brighton,
                CO Adams Co. United States | Golden Eagle Pkwy. / Heron St. (39.97720, -104.74991) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 89.6910 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Goshawk St. / Goshawk Ct. / Heron Ln. (39.97633, -104.74956) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 58.5745 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Golden Eagle Pkwy. / Tanager St. (39.97858, -104.74845) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 84.1980 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Golden Eagle Pkwy. / Crane St. / Southern St. (39.97963, -104.74733) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 96.0941 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Nighthawk Pkwy. / Crane St. (39.98134, -104.74878) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 65.8914 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Nighthawk Pkwy. / Heron St. (39.98132, -104.75076) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 96.0917 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Pelican St. / (unknown) (39.97597, -104.74867) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Earth. | 
| Brighton,
                CO Adams Co. United States | Goshawk St. / Tanager St. (39.97816, -104.74840) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 24.7104 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Goshawk St. / Crane St. (39.97920, -104.74729) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 24.7101 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Prairie Falcon Pkwy. / Killdeer St. (39.98546, -104.74473) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 108.8973 | Other (At-Grade) Single-Lane | 2000 | Year Completed estimated (1999-2002). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Royal Pine St. / Bristle Cone St. (39.99139, -104.74762) | Roundabout Existing | Unknown None | 4 Approaches 0 Driveways 73.2019 | Other (At-Grade) Single-Lane | 2003 | Year Completed estimated (2002-2004). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Royal Pine St. / Longs Peak St. (39.99458, -104.74971) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.0446 | Other (At-Grade) Single-Lane | 2003 | Year Completed estimated (2002-2004). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Midland St. / N 46th Ave. (39.99625, -104.75962) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 131.7535 | Other (At-Grade) Single-Lane | 2003 | Year Completed estimated (2002-2004). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | Midland St. / N 45th Ave. (39.99675, -104.76143) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 71.3663 | Other (At-Grade) Single-Lane | 2003 | Year Completed estimated (2002-2004). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | N 45th Ave. / Oxbow Dr. (39.99866, -104.76214) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 115.2808 | Other (At-Grade) Single-Lane | 2003 | Year Completed estimated (2002-2004). ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | N 42nd Ave. / Clover Ln. (39.99227, -104.76718) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 119.8666 | Other (At-Grade) Single-Lane | 2003 | Year Completed estimated (2002-2004). ICD estimated from Google Maps linework. | 
| Telluride,
                CO San Miguel Co. United States | CO-145 / CO-145 Spur (37.95036, -107.87135) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.6712 | Other (At-Grade) Single-Lane | 2013 | Through bypass lane along top of T-intersection. Year Completed estimated (2011-2014). ICD estimated from Google Maps linework. | 
| (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. | 
| Castle Rock,
                CO Douglas Co. United States | Castle Rock Pkwy. / Promenade Pkwy. / I-25 SB Off-Ramp / I-25 NB Ramps (39.42427, -104.87786) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.3611 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 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. | |
| Snowmass Village,
                CO Pitkin Co. United States | Brush Creek Rd. / Wood Rd. / Kearns Rd. (39.21053, -106.94725) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 27.7620 | Other (At-Grade) Single-Lane | 2016 | Right-turn bypass lane on south leg. ICD estimated from Google Maps linework. | 
| Castle Rock,
                CO Douglas Co. United States | Promenade Pkwy. / (parking lots) (39.41882, -104.87797) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.5192 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Castle Rock,
                CO Douglas Co. United States | Promenade Pkwy. / (parking lot) (39.42238, -104.87869) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.5233 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Grand Junction,
                CO Mesa Co. United States | Horizon Dr. / H Rd. / Eagle Dr. (39.11827, -108.52976) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 60.2299 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Year Completed estimated (2006-2011). Slight elliptical shape. Right-turn bypass lane on west leg. ICD estimated from Google Maps linework. | 
| Windsor,
                CO Weld Co. United States | E Cross Roads Blvd. / 7th St. / (unknown) (40.43692, -104.90540) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 58.1778 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Year Completed estimated (2006-2009). ICD estimated from Google Maps linework. | 
| Windsor,
                CO Weld Co. United States | Eastman Park Dr. / 7th St. (40.46536, -104.90772) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.6198 | Other (At-Grade) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Windsor,
                CO Weld Co. United States | Eastman Park Dr. / 3rd St. (40.46570, -104.90190) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.2542 | Other (At-Grade) Single-Lane | 2011 | ICD estimated from Google Maps linework. | 
| Windsor,
                CO Weld Co. United States | Eastman Park Dr. / Water Valley Pkwy. / Cornerstone Dr. (40.46521, -104.89186) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.4372 | Other (At-Grade) Single-Lane | 2015 | Year Completed estimated (2014-2016). 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. | 
| 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. | 
| Fruita,
                CO Mesa Co. United States | CO-340 / I-70 EB Ramps / I-70 Frontage Rd. (39.15470, -108.73769) | Roundabout Existing | All-Way Yield Active Pedestrian Warning (flashing yellow) | 4 Approaches 0 Driveways 40.7499 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Fruita,
                CO Mesa Co. United States | CO-340 / Raptor Rd. (39.15351, -108.73813) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.2337 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Grand Junction,
                CO Mesa Co. United States | G Rd. / 23rd Rd. (39.10632, -108.62669) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2011 | Specifically designed for over-length, WB-110 trucks. | 
| Grand Junction,
                CO Mesa Co. United States | Horizon Dr. / I-70 WB Ramps (39.11215, -108.53938) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 50.0415 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2015 | ICD estimated from Google Maps linework. | 
| Grand Junction,
                CO Mesa Co. United States | Horizon Dr. / I-70 EB Ramps / Horizon 70 Ct. (39.11140, -108.54051) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.0420 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2015 | ICD estimated from Google Maps linework. | 
| Glenwood Springs,
                CO Garfield Co. United States | US 6 (6th St.) / Laurel St. / N River Dr. (39.55027, -107.32708) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.7572 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Carbondale,
                CO Garfield Co. United States | CO-133 / Main St. (39.40113, -107.21968) | Roundabout Existing | All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) | 4 Approaches 0 Driveways 42.4526 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2013 | ICD estimated from Google Maps linework. | 
| Breckenridge,
                CO Summit Co. United States | CO-9 / Stan Miller Dr. / Fairview Blvd. (39.52585, -106.04534) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.5341 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2015 | ICD estimated from Google Maps linework. | 
| Silt,
                CO Garfield Co. United States | US 6 (Main St. / ) / 9th St. (39.54703, -107.65360) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 22.1028 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Rifle,
                CO Garfield Co. United States | Taughenbaugh Blvd. / I-70 EB Ramps (39.52339, -107.77710) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.6695 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Rifle,
                CO Garfield Co. United States | Taughenbaugh Blvd. / 7th St. / Airport Rd. (39.52260, -107.77673) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.8509 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Windsor,
                CO Weld Co. United States | New Liberty Rd. / (future road) (40.45101, -104.91123) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 43.6242 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2005 | ICD estimated from Google Maps linework. | 
| Windsor,
                CO Weld Co. United States | New Liberty Rd. / Marina Dr. (40.44626, -104.90330) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 49.9896 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | ICD estimated from Google Maps linework. | 
| Windsor,
                CO Weld Co. United States | CR 62 / Covered Bridge Pkwy. (40.43593, -104.93456) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 57.9120 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | |
| 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. | 
| 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 | 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 | 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. | |
| 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. | |
| 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. | |
| 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. | 
| Castle Pines,
                CO Douglas Co. United States | Lagae Rd. / Hyland Hills Rd. (39.46753, -104.88126) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 41.4902 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | ICD estimated from Google Maps linework. | 
| Castle Pines,
                CO Douglas Co. United States | Lagae Rd. / Monarch Blvd. (39.46134, -104.87935) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.8834 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Briargate Pkwy. / Wolf Center Dr. (38.97110, -104.72451) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 52.9272 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2017 | ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Briargate Pkwy. / Valemount Dr. (38.97236, -104.72142) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 46.4265 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2017 | ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Briargate Pkwy. / Wolf Lake Dr. (38.97533, -104.71652) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.9955 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2017 | Year Completed estimated (2017-2019). ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Cordera Crest Ave. / Notch Trl. (38.97849, -104.75286) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.0664 | Other (At-Grade) Single-Lane | 2016 | Year Completed estimated (2015-2017). ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Cordera Crest Ave. / Old Ranch Rd. (38.98344, -104.75789) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.5651 | Other (At-Grade) Single-Lane | 2016 | Year Completed estimated (2015-2017). 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. | 
| 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. | 
| 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. | 
| Greeley,
                CO Weld Co. United States | 20th St. / 83rd Ave. (40.40679, -104.81332) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.7435 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2019 | https://keepgreeleymoving.com/20th-street-improvements/ ICD estimated from Google Maps linework. | 
| 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. |