Roundabouts Database

30320 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
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.
Castle Rock, CO
Douglas Co.
United States 		Castle Oaks Dr. / Arabella Dr.
(39.41863, -104.77860) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2006
Castle Highlands, CO
Douglas Co.
United States 		Wolfensberger Rd. / Plum Creek Pkwy. / Coachline Rd.
(39.37564, -104.88568) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2018 Year Completed estimated (2017-2019).
Young American, CO
Douglas Co.
United States 		E Plum Creek Pkwy. / Lake Gulch Rd. / S Gilbert St.
(39.35773, -104.84209) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2020 Year Completed estimated (2019-2021).
Pueblo, CO
Pueblo Co.
United States 		Palazzo Ln. / Village Green Pl.
(38.31441, -104.57757) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2005
Pueblo, CO
Pueblo Co.
United States 		Dillon Dr. / I-25 Frontage Road / I-25 SB On-Ramp
(38.33775, -104.62031) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2016 Year Completed estimated (2015-2018).
Grand Junction, CO
Mesa Co.
United States 		Grand Ave. / N 1st St. / SR 340 (Broadway) / I-70 Business Loop
(39.07031, -108.57097) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		2022 https://www.codot.gov/news/2021/august-2021/1st-street-roundabout-project-enters-new-phase
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.
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.
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
Denver, CO
Denver Co.
United States 		Denver City Park
(39.74743, -104.94152) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
The Aurora Highlands, CO
Adams Co.
United States 		Aurora Highlands Pkwy. / Denali Blvd.
(39.77048, -104.70663) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
60.9600 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2021 Merging right-turn bypass lane on east leg; add-lane bypass lane on north leg. Year Completed estimated (2020-2021).
(unincorporated), CO
Denver Co.
United States 		High Point Blvd. / N Dunkirk St.
(39.82169, -104.76259) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Unknown 		2021 Year Completed estimated (2021-2022).
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 		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 		Redmesa Ave. / Egnar St.
(40.44530, -105.10048) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.9080 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2020
Loveland, CO
Larimer Co.
United States 		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 		Turquoise St. / Lapis Pl.
(40.39765, -105.03948) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2020
Loveland, CO
Larimer Co.
United States 		Emerald St. / Lapis Pl.
(40.39611, -105.03932) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
16.7640 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2020
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/
Colorado Springs, CO
El Paso Co.
United States 		N 30th St. / Gateway Rd.
(38.87780, -104.87071) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2023 https://coloradosprings.gov/project/30th-street-corridor-project
Mancos, CO
Montezuma Co.
United States 		Ruins Rd. / (entrance to visitor center) / (service road)
(37.33917, -108.41185) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 Entrance to Mesa Verde National Park. Year Completed estimated (2020-2023). Previous control was mix of stop and uncontrolled movements.
Colorado Spings, CO
El Paso Co.
United States 		Vincent Dr. / Campus Dr.
(38.92903, -104.80970) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Gypsum, CO
Eagle Co.
United States 		US 6 / Schoolside Rd.
(39.64575, -106.94449) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2023 https://www.vaildaily.com/news/newly-completed-gypsum-roundabout-includes-a-late-addition-that-should-lessen-traffic/ https://www.townofgypsum.com/Home/Components/FacilityDirectory/FacilityDirectory/1066/1310
Durango, CO
La Plata Co.
United States 		Wilson Gulch Dr. / US 160 Ramps
(37.22979, -107.83946) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
67.0560 		Freeway Ramps (Grade-Separated)
Multilane (3+ Lane) 		2012 Year Completed estimated (2011-2014). North leg added 2015-2017. https://www.codot.gov/projects/archived-project-sites/us-160-wilson-gulch-road-extension
Glenwood Springs, CO
Garfield Co.
United States 		N River St. / (parking)
(39.54920, -107.32567) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.9080 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2018 Underneath SR 82. Year Completed estimated (2017-2018).
Glenwood Springs, CO
Garfield Co.
United States 		Airport Rd / MIdland Rd / Four Mile Rd / (unknown)
(39.50807, -107.31691) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2021 Year Completed estimated (2021-2023).
Glenwood Springs, CO
Garfield Co.
United States 		E Meadows Dr. / (parking)
(39.55340, -107.34114) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2002-2005).
Glenwood Springs, CO
Garfield Co.
United States 		W Meadows Dr. / (parking)
(39.55567, -107.34547) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2002-2005).
Edwards, CO
Eagle Co.
United States 		Miller Ranch Rd. / (parking)
(39.64405, -106.58350) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2006-2011).
Frisco, CO
Summit Co.
United States 		Copper Rd / Beeler Pl. / Copper Cir.
(39.50153, -106.15826) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (1999-2005).
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
Durango, CO
La Plata Co.
United States 		US 550 / US 160 WB Ramps / US 160 EB Exit Ramp / Wilson Gulch Dr.
(37.22978, -107.83943) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
64.0080 		Freeway Ramps (Grade-Separated)
Multilane (3+ Lane) 		2014 Year Completed estimated (2011-2014). North leg added 2014-2017. US 550 added in 2024, although that uses the same leg as US 160 EB. https://www.durangoherald.com/articles/u-s-highway-550-connection-finally-opens-in-durango/
Durango, CO
La Plata Co.
United States 		US 550 / US 160 EB Entrance Ramp
(37.22666, -107.83949) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Unknown 		2024 https://www.facebook.com/coloradodot/videos/grandview-interchange-us-550-us-160-durango-on-monday-715-many-motorists-travele/853241030015092/
Colorado Springs, CO
El Paso Co.
United States 		Tutt Blvd. / Greenway Pl. / (parking)
(38.88292, -104.71469) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2023 Year Completed estimated (2022-2023).
Castle Rock, CO
Douglas Co.
United States 		Crystal Valley Pkwy. / Plum Creek Blvd.
(39.33642, -104.86553) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2024 https://m.facebook.com/story.php?id=100064394515704&story_fbid=2014182452315413
Grand Junction, CO
Mesa Co.
United States 		24 Rd. / G Rd.
(39.10637, -108.60819) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2023 https://www.westernslopenow.com/news/local-news/the-artist-for-the-24-rd-roundabout-is-picked/
Trinidad, CO
Las Animas Co.
United States 		County Road 69.1 / I-25 SB Ramps
(37.13386, -104.52197) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2023 https://www.codot.gov/projects/archived-project-sites/i25-exit11-trinidad-intersection
Trinidad, CO
Las Animas Co.
United States 		Santa Fe Trail / I-25 NB Ramps
(37.13383, -104.52080) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2023 https://www.codot.gov/projects/archived-project-sites/i25-exit11-trinidad-intersection
Pueblo, CO
Pueblo Co.
United States 		Frontage Rd. / Drew Dix Pkwy. / I-25 SB Exit Ramp
(38.34309, -104.62080) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2023 https://www.codot.gov/projects/drewdixdillon
Grand Junction, CO
Mesa Co.
United States 		Main St. / N 13th St. / S 13th St.
(39.06731, -108.55072) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2023 https://www.gjsentinel.com/news/western_colorado/mini-roundabout-installed-at-13th-and-main/article_bbcc8188-a4fb-11ee-bc44-b755269e8d08.html
Severance, CO
Weld Co.
United States 		CR 74 / CR 33
(40.52430, -104.75593) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2024 https://northfortynews.com/category/news/work-complete-weld-county-road-74-33-roundabout-now-open/
Steamboat Springs, CO
Routt Co.
United States 		Mount Werner Dr. / Steamboat Blvd. / Bangtail Way
(40.45897, -106.81287) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2022 https://www.engagesteamboat.net/roundabout
Steamboat Springs, CO
Routt Co.
United States 		Central Park Dr. / Alpine Plaza / (parking)
(40.46194, -106.82118) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2017 Entrance to Central Park Plaza shopping center. Year Completed estimated (2015-2018).
Security-Widefield, CO
El Paso Co.
United States 		Fountain Mesa Rd. / Caballero Ave. / Fortman Ave.
(38.72330, -104.69956) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2022 Year Completed estimated (2021-2022). https://www.koaa.com/news/covering-colorado/new-roundabout-but-is-it-keeping-children-safe
Eaton, CO
Weld Co.
United States 		Collins St. (CR 74) / CR 35
(40.52442, -104.73663) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://townofeaton.colorado.gov/news-article/eatons-new-roundabout-collins-and-cr-35
Pueblo, CO
Pueblo Co.
United States 		Spaulding Ave. / W 18th St.
(38.28444, -104.65350) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2006-2011).
Pueblo, CO
Pueblo Co.
United States 		W 18th St. / Perry Ave.
(38.28446, -104.65742) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2005 East and south legs stubbed.
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/
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
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).
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).
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.
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).
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
Parker, CO
Douglas Co.
United States 		Lincoln Meadows Pkwy. / S Twenty Mile Rd.
(39.53380, -104.77565) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2004 Year Completed estimated (2003-2004).
Littleton, CO
Douglas Co.
United States 		Chatfield Lake Rd. / N Roxborough Park Rd.
(39.52660, -105.05232) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Single-Lane 		2020 Merging right-turn bypass lane on south leg.
Littleton, CO
Douglas Co.
United States 		N Roxborough Park Rd. / Bright Sky Ln.
(39.52370, -105.05422) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2020
Littleton, CO
Douglas Co.
United States 		Chatfield Lake Rd. / Eagle River St. / (unknown)
(39.51555, -105.04585) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2020
Colorado Springs, CO
El Paso Co.
United States 		Fontaine Blvd. / Lamprey Dr.
(38.74007, -104.62463) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2019).
Colorado Springs, CO
El Paso Co.
United States 		Bradley Rd. / SR 83 (S Academy Blvd.) NB Ramps / Cody Dr.
(38.77019, -104.75705) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Freeway Ramps (Grade-Separated)
Single-Lane 		2007 Year Completed estimated (2006-2007).
Colorado Springs, CO
El Paso Co.
United States 		Peak Innovation Pkwy. / Integration Loop
(38.77922, -104.71029) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2021 Yield-controlled right-turn bypass lanes on north and south legs. Add-lane right-turn bypass lanes on east and west legs. Year Completed estimated (2020-2021).
Colorado Springs, CO
El Paso Co.
United States 		Shale Dr. / Graphite Dr.
(38.89675, -104.67676) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		2018 Very wide circulatory roadway relative to entry width. Year Completed estimated (2017-2019).
Colorado Springs, CO
El Paso Co.
United States 		Mustang Rim Dr. / Durango Kid Dr.
(38.92918, -104.68881) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2015).
Colorado Springs, CO
El Paso Co.
United States 		Issaquah Dr. / Durango Kid Dr.
(38.92864, -104.68562) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2015).
Colorado Springs, CO
El Paso Co.
United States 		Issaquah Dr. / Hawk Wind Blvd.
(38.92294, -104.68581) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2006-2011).
Colorado Springs, CO
El Paso Co.
United States 		Kenosha Dr. / Mulberry Dr.
(38.94566, -104.67644) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2015-2017).
Colorado Springs, CO
El Paso Co.
United States 		Shiloh Mesa Dr. / Mulberry Dr.
(38.94332, -104.67591) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2019).
Colorado Springs, CO
El Paso Co.
United States 		Royal Pine Dr. / Purple Plum Way
(38.97220, -104.75351) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2010 Year Completed estimated (2007-2011).
Colorado Springs, CO
El Paso Co.
United States 		Spectrum Loop / Grey Hawk Dr.
(39.02499, -104.81383) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2008 Year Completed estimated (2006-2011).
Colorado Springs, CO
El Paso Co.
United States 		Struthers Rd. / Gleneagle Dr. / Gleneagle Gate View
(39.03042, -104.83108) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
64.0080 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2020 Oval shaped. ICD = 210 ft x 185 ft.
Castle Rock, CO
Douglas Co.
United States 		N Meadows Dr. / (unknown)
(39.41690, -104.89226) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2021
Parker, CO
Douglas Co.
United States 		S Red Sky Dr. / S Swift Fox Way
(39.49572, -104.80072) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2005).
Engelwood, CO
Douglas Co.
United States 		Aviator Way / Aviator Ln.
(39.55846, -104.84554) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (2002-2003). South leg added 2004-2005.
Aurora, CO
Arapahoe Co.
United States 		S Sampson Gulch Way / E Clifton Dr.
(39.56850, -104.69683) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2015-2017).
Denver, CO
Denver Co.
United States 		Fairmount Dr. / S Valentia St.
(39.70575, -104.89029) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2001 Year Completed estimated (1999-2002).
Aurora, CO
Arapahoe Co.
United States 		E Ellsworth Ave. / Robertsdale St.
(39.71661, -104.67347) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Aurora, CO
Arapahoe Co.
United States 		E Ellsworth Ave. / Trussville St. / 1st Ave.
(39.71830, -104.66897) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2021 Year Completed estimated (2020-2021).
Commerce City, CO
Adams Co.
United States 		Walden St. / E 105th Ave.
(39.88769, -104.77644) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2005).
Commerce City, CO
Adams Co.
United States 		E 112th Ave. / Potomac St.
(39.89963, -104.82770) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
Commerce City, CO
Adams Co.
United States 		E 112th Ave. / (parking)
(39.89972, -104.82580) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
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 		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).
Windsor, CO
Weld Co.
United States 		CO 257 / Pointe Plaza Dr.
(40.47823, -104.88905) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2019 At-grade rail crossing located 370 feet to south. Year Completed estimated (2018-2019).
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).
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
Longmont, CO
Boulder Co.
United States 		Sundance Dr. / Galapagos Pl.
(40.20011, -105.06468) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2016-2017).
Longmont, CO
Boulder Co.
United States 		Sundance Dr. / Tyrrhenian Dr.
(40.20202, -105.06468) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2016-2017).
Longmont, CO
Boulder Co.
United States 		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 		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.
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
Frederick, CO
Weld Co.
United States 		Colorado Blvd. / 5th St.
(40.09868, -104.94236) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Single-Lane 		2016 Striped out inside circulating lane and inside entry lanes on north and south legs, with evidence of vehicle paths traveling over striped circulatory roadway area. Year Completed estimated (2015-2017).
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.
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).
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
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).
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
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).