| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Draper,
                UT Salt Lake Co. United States | 300 East / Carlquist Dr. (40.51326, -111.88180) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.5038 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| South Jordan,
                UT Salt Lake Co. United States | River Front Pkwy. / 10750 South (40.55468, -111.91360) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 108.8921 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| South Jordan,
                UT Salt Lake Co. United States | River Front Pkwy. / 11050 South (40.55050, -111.91690) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 52.6345 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| South Jordan,
                UT Salt Lake Co. United States | Daybreak View Pkwy. (11400 South) / Kestrel Ridge Rd. (40.54686, -111.99760) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 133.4084 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| South Jordan,
                UT Salt Lake Co. United States | Daybreak View Pkwy. (11400 South) / Oakmond Rd. (40.54534, -112.00610) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 60.8066 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Tacoma,
                WA Thurston Co. United States | N. 37th St. / Stevens St. / Mason Ave. (47.28197, -122.49590) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.8760 | Other (At-Grade) Single-Lane | 2007 | One leg skewed at ~60 degrees. Opened April 2007. Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| Charlotte,
                NC Mecklenburg Co. United States | Mary Alexander Rd. / North Loop Rd. (Vanlandingham Rd.) (35.30556, -80.72809) | Roundabout Existing | All-Way Yield Pedestrian Signal (red-yellow-green to drivers) | 3 Approaches 0 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2005 | On campus of University of North Carolina at Charlotte. Heavy pedestrian location - parking deck. | 
| Arlington,
                WA Snohomish Co. United States | W. Division St. / N. West Ave. (48.19864, -122.12800) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.8628 | Other (At-Grade) Single-Lane | 2002 | September 2002. ICD estimated from Google Maps linework. | 
| Arlington,
                WA Snohomish Co. United States | E. Division St. / N. Broadway St. (48.19858, -122.12530) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 23.8824 | Other (At-Grade) Single-Lane | 2002 | September 2002. ICD estimated from Google Maps linework. | 
| Fall City,
                WA King Co. United States | SR 202 / SR 203 (47.56919, -121.88690) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 21.7569 | Other (At-Grade) Single-Lane | 2007 | Completed October 2007. ICD estimated from Google Maps linework. | 
| Dupont,
                WA Thurston Co. United States | Hoffman Hill Blvd. / Burnside Pl. (47.09605, -122.67150) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 26.8311 | Other (At-Grade) Single-Lane | 2004 | Completed January 2004. ICD estimated from Google Maps linework. | 
| Dupont,
                WA Thurston Co. United States | McNeil St. / Gaul Ave. (47.09734, -122.66080) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.0174 | Other (At-Grade) Single-Lane | 2001 | Completed May 2001. ICD estimated from Google Maps linework. | 
| Dupont,
                WA Thurston Co. United States | McNeil St. / Marshall Cir. (47.09618, -122.65520) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 26.8311 | Other (At-Grade) Single-Lane | 2001 | Completed May 2001. ICD estimated from Google Maps linework. | 
| Cle Elum,
                WA Kittitas Co. United States | Bullfrog Rd. / Suncadia Trl. (47.19987, -120.98731) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2004 | Completed July 2004. | 
| Ferndale,
                WA Whatcom Co. United States | Vista Dr. / Malloy Ave. / Ferndale Terr. (48.85251, -122.59620) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.3640 | Other (At-Grade) Single-Lane | 2007 | Opened September 2007. ICD estimated from Google Maps linework. | 
| Covington,
                WA King Co. United States | SE 256th St. / 164th Ave. SE (47.37256, -122.12290) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.1477 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Open September 2007. ICD estimated from Google Maps linework. | 
| Covington,
                WA King Co. United States | 172nd Ave. SE / SE 270th Pl. (47.35939, -122.11240) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.7885 | Other (At-Grade) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| Colville,
                WA Stevens Co. United States | SR 395 / Railroad Ave. (48.54959, -117.91250) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.9494 | Other (At-Grade) Single-Lane | 2007 | Opened October 2007. ICD estimated from Google Maps linework. | 
| Chehalis,
                WA Lewis Co. United States | NW Louisiana Ave. / Wal-Mart-Home Depot Access (46.67881, -122.97600) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.3319 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Opened September 2006. Fourth leg opened late 2015/early 2016. ICD estimated from Google Maps linework. | 
| Bellingham,
                WA Whatcom Co. United States | Mitchell Way / Bellingham Airport Access Rd. (48.79757, -122.53080) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 31.4692 | Other (At-Grade) Single-Lane | 2003 | ICD estimated from Google Maps linework. | 
| Bountiful,
                UT Davis Co. United States | Main St. / 1500 South / 200 West (40.87477, -111.88570) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 27.9955 | Other (At-Grade) Single-Lane | 2008 | Construction is concrete. Functional Class: Collector ICD estimated from Google Maps linework. | 
| Hoffman Estates,
                IL Cook Co. United States | Essex Dr. / Beacon Pointe Dr. (42.06310, -88.23064) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 29.2604 | Other (At-Grade) Single-Lane | 2007 | Roundabout pictures available at Village Website http://www.hoffmanestates.org/government/departments-comdev-transportation.shtml#InterestandInfo Functional Class: Collector ICD estimated from Google Maps linework. | 
| Bellevue,
                WA King Co. United States | Landerholm Rd. / South Perimeter Cir. (47.58438, -122.14600) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.8343 | Other (At-Grade) Single-Lane | 2003 | Opened July 2003. Entrance to Bellevue Community College. ICD estimated from Google Maps linework. | 
| Davidson,
                NC Mecklenburg Co. United States | Griffith St. / Davidson Gateway Dr. (35.50277, -80.86375) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 36.9469 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Built by developer - multilane existing intersection. ICD estimated from Google Maps linework. | 
| Davidson,
                NC Mecklenburg Co. United States | Griffith St. / Jetton St. (35.50210, -80.86121) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 39.8641 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Built by developer - multilane existing intersection. ICD estimated from Google Maps linework. | 
| Huntersville,
                NC Mecklenburg Co. United States | Stumptown Rd. / Hugh Torance Pkwy. (35.42301, -80.87071) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 58.3951 | Other (At-Grade) Single-Lane | 2004 | Built by developer. ICD estimated from Google Maps linework. | 
| Norwood,
                NC Stanly Co. United States | Cottonville Rd. / S. Stanly School Rd. (35.23319, -80.16761) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 33.1684 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Waxhaw,
                NC Union Co. United States | Waxhaw-Indian Trl. / Potter Rd. (35.02373, -80.69185) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 33.2538 | Other (At-Grade) Single-Lane | 2006 | Safety location. ICD estimated from Google Maps linework. | 
| Mulberry,
                NC Wilkes Co. United States | Yellowbanks Rd. / Haymeadow Rd. (36.26457, -81.14713) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2002 | Spot safety site. | 
| Gastonia,
                NC Gaston Co. United States | Gaston Day School Rd. / Kendrick Rd. (35.21435, -81.13301) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 32.2003 | Other (At-Grade) Single-Lane | 2005 | Safety problem - did not meet signal warrants. ICD estimated from Google Maps linework. | 
| McAdenville,
                NC Gaston Co. United States | Wesleyan Ave. / Church St. (35.25438, -81.07686) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 75.0970 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Asheville,
                NC Buncombe Co. United States | Bleachery Blvd. / Wal-Mart parking lot entrance (35.57649, -82.51315) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 36.9130 | Other (At-Grade) Single-Lane | 2006 | Built by developer - entrance to Wal-Mart parking lot. ICD estimated from Google Maps linework. | 
| Waynesville,
                NC Haywood Co. United States | US 23B (Asheville Rd.-N Main St) / Ratcliffe Cove Rd. / Zemery Ln. (35.49899, -82.96632) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 38.8933 | Other (At-Grade) Single-Lane | 2004 | TIP project. Right turn bypass lane. Fatal crash June 5, 2007. ICD estimated from Google Maps linework. | 
| Abbotsford,
                BC Fraser Valley Regional District Canada | Mt Lehman Rd. / S Fraser Way (49.05355, -122.38119) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 45.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2005 | Year Completed estimated (2004-2006). | 
| Ladysmith,
                BC Vancouver Island Regional District Canada | 1st Ave. / Symonds St. (48.99727, -123.82330) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4258 | Other (At-Grade) Single-Lane | 2000 | First roundabout in British Columbia. Sponsored by ICBC. http://www.sustainability.ca/Docs/Transportation%20Case%20Studies-%20Technical%20Engineering%20Solutions.pdf?CFID=1123696&CFTOKEN=10586703 ICD estimated from Google Maps linework. | 
| Burnaby,
                BC Greater Vancouver Regional District Canada | Ridge Dr. / Barnet Rd. / Duthie Ave. (49.28328, -122.95360) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 30.0000 | Other (At-Grade) Single-Lane | 2002 | |
| New Westminster,
                BC Greater Vancouver Regional District Canada | 10th St. / Carnarvon St. (49.20056, -122.91550) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 17.1686 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Courtenay,
                BC Comox-Strathcona Regional District Canada | Cumberland Rd. / Willemar Ave. (49.67717, -125.00410) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.7310 | Other (At-Grade) Single-Lane | 2003 | ICD estimated from Google Maps linework. | 
| Penticton,
                BC Okanagan-Similkameen Regional District Canada | Ellis St. / Vancouver Ave. / Marina Way (49.50304, -119.59060) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.4730 | Other (At-Grade) Single-Lane | 2004 | Signed to have trucks make 270-degree turn to turn right. ICD estimated from Google Maps linework. | 
| Prince George,
                BC Fraser-Fort George Region Canada | Cameron St. / N. Neechako Rd. (53.92850, -122.76743) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.0000 | Other (At-Grade) Single-Lane | 2009 | Completed August 2009. http://www.city.pg.bc.ca/city_services/transportation/cameronstreetbridge/ | 
| Lakeland Ridge,
                AB Strathcona Canada | Crimson Dr. / Charlotte Way (53.54333, -113.27780) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.2263 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Concord,
                NC Mecklenburg Co. United States | Christenbury Rd. / Millstream Ridge Dr. (35.38115, -80.74506) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 27.2652 | Other (At-Grade) Single-Lane | 2003 | Developer subdivision. ICD estimated from Google Maps linework. | 
| Mount Vernon,
                WA Skagit Co. United States | SR 538 (E College Way) / SR 9 (48.43002, -122.26460) | Roundabout Existing | Unknown Unknown | 3 Approaches 1 Driveways 38.0389 | Other (At-Grade) Single-Lane | 2007 | Opened July 2007. Rural. Fatal crash December 22, 2011. 11861-05. ICD estimated from Google Maps linework. | 
| Odenton,
                MD Anne Arundel Co. United States | MD 175 / MD 677 / Higgins Dr. (39.07831, -76.68481) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 57.9120 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2004 | Reduced from two lanes to one lane in 2010. 21442 | 
| 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. | 
| 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 | 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. | 
| Seattle,
                WA King Co. United States | Bagley Ave. N / N 43rd St. (47.65912, -122.33260) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Loveland,
                CO Larimer Co. United States | Sculptor Dr. / Corvus Dr. (40.39647, -105.03130) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 37.2926 | Other (At-Grade) Single-Lane | 2003 | ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Tacanecy Dr. / Marcy Dr. (40.39230, -105.12140) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 29.1082 | Other (At-Grade) Single-Lane | 1995 | ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Tiger Ave. / Angora Dr. (40.37680, -105.12750) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 28.2050 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Valley Oak Dr. / Clearwater Dr. (40.44328, -105.02180) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 34.5398 | Other (At-Grade) Single-Lane | 2000 | Date estimated. Functional Class: Local ICD estimated from Google Maps linework. | 
| Parker,
                CO Douglas Co. United States | Main St. / (unknown) (39.51799, -104.75580) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 19.3480 | Other (At-Grade) Single-Lane | 2000 | ICD estimated from Google Maps linework. | 
| Grand Junction,
                CO Mesa Co. United States | Independent Ave. / Sams Club entrance (39.08170, -108.58310) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 33.3754 | Other (At-Grade) Single-Lane | 2003 | Serves commercial development parking lot. ICD estimated from Google Maps linework. | 
| Grand Junction,
                CO Mesa Co. United States | Colorado Ave. / S. 2nd St. (39.06636, -108.56950) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 25.9643 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Grand Junction,
                CO Mesa Co. United States | G Rd. / 25th Rd. (39.10636, -108.58940) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 30.5834 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Grand Junction,
                CO Mesa Co. United States | G Rd. / 24 1 / 2 Rd. (39.10635, -108.59870) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 34.2905 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Seattle,
                WA King Co. United States | Meridian Ave. N / N 43rd St. (47.65914, -122.33380) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Colorado Springs,
                CO El Paso Co. United States | University of Colorado - Colorado Springs (38.89215, -104.80190) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 36.2537 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Seattle,
                WA King Co. United States | Meridian Ave. N / N 42nd St. (47.65797, -122.33380) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| 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. | 
| Greeley,
                CO Weld Co. United States | W. 29th St. / 67th Ave. (40.38995, -104.78710) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 48.2121 | Other (At-Grade) Single-Lane | 2003 | 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. | |
| Erie,
                CO Weld Co. United States | Lehigh Cir. / Bonanza Dr. (40.03702, -105.04080) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 29.2612 | Other (At-Grade) Single-Lane | 2006 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Erie,
                CO Weld Co. United States | Vista Pkwy. / Mountain View Blvd. (40.00784, -105.03110) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 27.4441 | Other (At-Grade) Single-Lane | 2006 | Northbound right turn bypass lane. Functional Class: Local ICD estimated from Google Maps linework. | 
| Seattle,
                WA King Co. United States | Burke Ave. N / N 43rd St. (47.65915, -122.33500) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Seattle,
                WA King Co. United States | Burke Ave. N / N 44th St. (47.66031, -122.33500) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 16.8926 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | Meridian Ave. N / N 44th St. (47.66030, -122.33370) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 20.9147 | Other (At-Grade) Unknown | 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. | 
| 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. | 
| Englewood,
                CO Arapahoe Co. United States | Englewood Pkwy. / S. Cherokee St. (39.65491, -104.99110) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 41.3782 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2000 | ICD estimated from Google Maps linework. | 
| Englewood,
                CO Arapahoe Co. United States | W. Sheri Ln. / Belleview Park (39.62281, -105.00620) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 42.3174 | Other (At-Grade) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| Seattle,
                WA King Co. United States | Bagley Ave. N / N 44th St. (47.66029, -122.33260) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| 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. | 
| Evergreen,
                CO Jefferson Co. United States | CR 65 / Bergen Pkwy. (39.69101, -105.36050) | Roundabout Existing | Unknown Unknown | 3 Approaches 1 Driveways 26.6520 | Other (At-Grade) Single-Lane | 1998 | ICD estimated from Google Maps linework. | 
| Seattle,
                WA King Co. United States | Corliss Ave. N / N 43rd St. (47.65912, -122.33140) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Seattle,
                WA King Co. United States | Corliss Ave. N / N 42nd St. (47.65795, -122.33140) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 13.6756 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | Sunnyside Ave. N / N 42nd St. (47.65794, -122.33020) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 16.8934 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | 2nd Ave. NE / NE 43rd St. (47.65896, -122.32730) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 70.7899 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Littleton,
                CO Arapahoe Co. United States | W. Caley Ave. / S. Spotswood St. (39.60239, -105.01160) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 23.9256 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | 2nd Ave. NE / NE 44th St. (47.66022, -122.32730) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 33.7853 | Other (At-Grade) Unknown | 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. | 
| Durango,
                CO La Plata Co. United States | Jenkins Ranch Rd. / Molas Dr. (37.28099, -107.85550) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 28.5089 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| 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 | E. 13th St. / (unknown) / (parking lot) (40.40565, -105.03960) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 132.7798 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Sculptor Dr. / (unknown) / (parking lot) (40.40465, -105.03520) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 59.1152 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Parker,
                CO Douglas Co. United States | E. Neu Towne Pkwy. / S. Cedar Gulch Ln. (39.51147, -104.79250) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 35.0140 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Parker,
                CO Douglas Co. United States | S. Cedar Gulch Ln. / (unknown) (39.51289, -104.79120) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 35.9347 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Parker,
                CO Douglas Co. United States | E. Neu Towne Pkwy. / (unknown) (39.51047, -104.78530) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 34.0931 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Commerce City,
                CO Adams Co. United States | Turnberry Pkwy. / Revere St. (39.89062, -104.83800) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2005 | Year Completed estimated (2004-2005). | 
| Commerce City,
                CO Adams Co. United States | E 105th Ave. / Uvalda St. (39.88673, -104.83520) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2003 | Year Completed estimated (2002-2003). | 
| Commerce City,
                CO Adams Co. United States | Wheeling St. / E 106th Ave. / Victor St. (39.88895, -104.83121) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2003 | Painted splitter islands. | 
| Middletown,
                DE New Castle Co. United States | Bunker Hill Rd. / Choptank Rd. (39.45790, -75.74350) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 31.3525 | Other (At-Grade) Single-Lane | 2007 | Rural, redesigned in 2008 to better accommodate trucks and farm equipment. ICD estimated from Google Maps linework. | 
| Quakertown,
                PA Bucks Co. United States | Station Rd. / Old Bethlehem Pike (40.42421, -75.33921) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 30.0036 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Rocky Mountain Ave. / Medical Center of the Rockies South (40.41537, -105.00150) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 40.0100 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Rocky Mountain Ave. / Medical Center of the Rockies North (40.41752, -105.00030) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 47.2831 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Rocky Mountain Ave. / Kendall Pkwy. / Artisan Dr. (40.42604, -105.00249) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 51.8230 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | ICD estimated from Google Maps linework. | 
| Anchorage,
                AK Anchorage United States | Elmore Rd. / E 135th Ave. / South Anchorage High School (61.09869, -149.80410) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.3650 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Woodland,
                CA Yolo Co. United States | Promenade Dr. / Somerset Cir. (38.64501, -121.73150) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.7154 | Other (At-Grade) Single-Lane | 2007 | Functional Class: Local ICD estimated from Google Maps linework. |