| 
                City, 
                State County Country  | 
            
                Intersection (Lat, Lng)  | 
            
                Type Status  | 
            Control Type / Other Control Type | Approaches / Driveways / ICD (m) | 
                Functional Class /  LaneType  | 
            Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| 
                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. | 
| 
                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  | 
            
                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. | |
| 
                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. | |
| 
                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. | 
| 
                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. / 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  | 
            
                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  | 
            
                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. | 
| 
                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. | 
| 
                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/ | 
| 
                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. | 
| 
                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  | 
            
                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). | 
| 
                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. / 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). | 
| 
                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). | 
| 
                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. | 
| 
                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. | 
| 
                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/ | 
| 
                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). | 
| 
                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. | 
| 
                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. | |
| 
                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. | 
| 
                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). | 
| 
                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). | 
| 
                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. | 
| 
                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. | |
| 
                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 | |
| 
                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. | 
| 
                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. | 
| 
                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. | |
| 
                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. | 
| 
                Longmont,
                CO Boulder Co. United States  | 
            
                Harvest Moon Dr. / (parking) / (unknown) (40.15101, -105.08420)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 41.1480  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | Right-turn-only lane and two-lane exit on north leg. Year Completed estimated (2022-2023). | 
| 
                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  |   
            ||
| 
                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  |   
            ||
| 
                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. | 
| 
                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). | 
| 
                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  |   
            ||
| 
                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 | |
| 
                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). | 
| 
                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. (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). | 
| 
                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  | 
            
                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. | 
| 
                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. | 
| 
                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. | 
| 
                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 | |
| 
                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  | 
            
                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. | 
| 
                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. / 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. | 
| 
                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. | 
| 
                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. | 
| 
                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. | 
| 
                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  | 
            
                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  | 
            
                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. | 
| 
                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). | 
| 
                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). | 
| 
                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. | 
| 
                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  | 
            
                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. | 
| 
                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. | 
| 
                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. | 
| 
                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 | |
| 
                Berthoud,
                CO Larimer Co. United States  | 
            
                CR 8 / CR 21 (40.30512, -105.13134)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 41.1480  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | https://www.larimer.gov/sites/default/files/2023-safety-report-final-20240806.pdf (page 20) | 
| 
                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/ | 
| 
                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. | 
| 
                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  | 
            
                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. | 
| 
                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. | 
| 
                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. | 
| 
                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. | 
| 
                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. | 
| 
                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). | 
| 
                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. | 
| 
                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  | 
            
                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 | |
| 
                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. | 
| 
                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. | 
| 
                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. | 
| 
                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. | |
| 
                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. | 
| 
                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. | 
| 
                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. | 
| 
                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  |   
            ||
| 
                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. | 
| 
                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. | 
| 
                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. | 
| 
                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  | 
            
                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. | 
| 
                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. | 
| 
                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. | 
| 
                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  | 
            
                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. | 
| 
                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 | |
| 
                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. |