| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Anchorage,
                AK Anchorage United States | Old Seward Hwy / Huffman Rd.. (61.10864, -149.86350) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.8158 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Estimated completion 2008. ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | E. Cheyenne Mountain Blvd. / Springmeadow Dr. (38.79132, -104.82750) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 81.9191 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Colorado Springs,
                CO El Paso Co. United States | Lake Ave. / Berthie Cir. (38.79348, -104.83950) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 16.7557 | Other (At-Grade) Single-Lane | 1995 | Year Completed unknown (before 1999). ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Lake Ave. / Old Broadmoor Rd. (38.79479, -104.83360) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 22.3405 | Other (At-Grade) Single-Lane | 1995 | Year Completed unknown (before 1999). ICD estimated from Google Maps linework. | 
| Denver,
                CO Denver Co. United States | N. Uinta Way / E. 6th Ave. Pkwy. (39.72570, -104.89200) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 51.4401 | Other (At-Grade) Single-Lane | 1998 | ICD estimated from Google Maps linework. | 
| Miami Springs,
                FL Miami-Dade Co. United States | Curtiss Pkwy. / Royal Poinciana / Westward Dr. / Palmetto Dr. (25.82130, -80.28160) | Other Existing | Other Unknown | 6 Approaches 0 Driveways 83.8565 | Other (At-Grade) Multilane (3+ Lane) | On-street parking within circulatory roadway, pedestrian access to central island, yield control on circulatory roadway, some stop-controlled entries. ICD estimated from Google Maps linework. | |
| Coral Gables,
                FL Miami-Dade Co. United States | Ponce de Leon Blvd. / Sevilla Ave. / Palermo Ave. (25.74597, -80.25848) | Other Existing | Unknown Unknown | 6 Approaches 0 Driveways 138.7738 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Miami Springs,
                FL Miami-Dade Co. United States | Pinecrest Dr. / South Dr. (25.81530, -80.28000) | Traffic Calming Circle Existing | One-Way/Two-Way Stop None | 4 Approaches 0 Driveways 43.0055 | Other (At-Grade) Single-Lane | Functional Class: Local ICD estimated from Google Maps linework. | |
| Miami Springs,
                FL Miami-Dade Co. United States | Glendale Dr. / Beverly Dr. (25.81348, -80.29934) | Other Existing | Unknown Unknown | 0 Approaches 0 Driveways 33.3298 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Miami Springs,
                FL Miami-Dade Co. United States | DeSoto Dr. / Labaron Dr. (25.81180, -80.27770) | Traffic Calming Circle Existing | One-Way/Two-Way Stop None | 4 Approaches 0 Driveways 36.5558 | Other (At-Grade) Single-Lane | Functional Class: Local ICD estimated from Google Maps linework. | |
| The Villages,
                FL Marion Co. United States | Buena Vista Blvd. / Mulberry Ln. (28.98078, -82.01563) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 70.0001 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Marion Co. United States | Buena Vista Blvd. / Legacy Ln. (28.97006, -82.01506) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.3341 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Marion Co. United States | Buena Vista Blvd. / Belle Meade Cir. (28.96300, -82.00399) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 55.3827 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Buena Vista Blvd. / Glenview Rd. / El Camino Real (28.95271, -82.00076) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 71.0641 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1998 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Buena Vista Blvd. / Tall Trees Ln. (28.92198, -82.00272) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 59.5861 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Buena Vista Blvd. / Belvedere Blvd. (28.91778, -81.99953) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.3161 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Morse Blvd. / El Camino Real / Paige Pl. (28.94803, -81.95540) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 68.9771 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1998 | ICD estimated from Google Maps linework. | 
| Seattle,
                WA King Co. United States | Interlake Ave. N / N 39th St. (47.65411, -122.34130) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 14.4811 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| New Castle,
                CO Garfield Co. United States | Castle Valley Blvd. / Pyramid St. (39.57959, -107.52880) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 33.1386 | Other (At-Grade) Single-Lane | 1999 | ICD estimated from Google Maps linework. | 
| New Castle,
                CO Garfield Co. United States | Castle Valley Blvd. / (TBD) (39.57517, -107.52190) | Roundabout Existing | Unknown Unknown | 2 Approaches 0 Driveways 31.2996 | Other (At-Grade) Single-Lane | 1999 | Facilitates U-turns. 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. | 
| 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. | |
| Oskaloosa,
                IA Mahaska Co. United States | Hwy 432 / Old Hwy 163 / Pella Ave. / Orchard Ave. (41.30376, -92.66716) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.8882 | Other (At-Grade) Single-Lane | 2004 | Completed April 2004. Site has sunken hole in central island with tunnels for bike path that passes under circulatory roadway. Experienced two single-vehicle crashes into sunken central island (alcohol-related). ICD estimated from Google Maps linework. | 
| Newton,
                KS Harvey Co. United States | First St. / I-135 Ramps (38.04250, -97.32240) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 65.8419 | Freeway Ramps (Grade-Separated) Single-Lane | 2003 | Single-point interchange. Previously controlled by one-way stop ICD estimated from Google Maps linework. | 
| Overland Park,
                KS Johnson Co. United States | W. 141st St. / Bluejacket St. (38.87130, -94.71130) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.6150 | Other (At-Grade) Single-Lane | 2001 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Duxbury,
                MA Plymouth Co. United States | Lincoln St. / Congress St. (42.05532, -70.72294) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 21.2829 | Other (At-Grade) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| Rochester,
                MN Olmsted Co. United States | UCR Dr. SE / Ucr Pkwy SE (south) (44.01538, -92.43011) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 46.3809 | Other (At-Grade) Single-Lane | 2000 | ICD estimated from Google Maps linework. | 
| Blair,
                NE Washington Co. United States | NE 133 / US 30 (41.51842, -96.14633) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 41.1353 | Other (At-Grade) Single-Lane | 2004 | Opened November 4, 2004. Right-turn bypass lanes on all three approaches. http://www.nebraskatransportation.org/roadrunner/docs/archives/Dec04Jan05.pdf ICD estimated from Google Maps linework. | 
| Bend,
                OR Deschutes Co. United States | NE 15th St. / Bear Creek Rd. (44.05150, -121.28400) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.9018 | Other (At-Grade) Single-Lane | 2005 | Near elementary school. Crossing guard operation. ICD estimated from Google Maps linework. | 
| Bend,
                OR Deschutes Co. United States | NW Awbrey Rd. / NW Sonora Dr. (44.07240, -121.31750) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.0262 | Other (At-Grade) Single-Lane | Older design. Fourth leg is stub. ICD estimated from Google Maps linework. | |
| Draper,
                UT Salt Lake Co. United States | Vestry Rd. / Rocky Mouth Ln. (40.48996, -111.87390) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 57.2236 | Other (At-Grade) Single-Lane | 1996 | ICD estimated from Google Maps linework. | 
| Orem,
                UT Utah Co. United States | E 850 North / N Palisade Dr. (40.31273, -111.66490) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 25.4997 | Other (At-Grade) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| Seattle,
                WA King Co. United States | Burke Ave. N / N 35th St. (47.64919, -122.33510) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 9.6550 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Lindon,
                UT Utah Co. United States | 400 South / 600 West (Lindon Park Circle) (40.33034, -111.73140) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 33.6873 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | Date estimated. ICD estimated from Google Maps linework. | 
| Provo,
                UT Utah Co. United States | 1730 North / 1740 West (40.25703, -111.68890) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.3437 | Other (At-Grade) Single-Lane | 1998 | ICD estimated from Google Maps linework. | 
| Colorado Springs,
                CO El Paso Co. United States | Promenade Dr. / Royal Pine Dr. (38.96891, -104.74860) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.2859 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Provo,
                UT Utah Co. United States | 700 East / Center St. (40.23369, -111.64660) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.9119 | Other (At-Grade) Single-Lane | 1996 | ICD estimated from Google Maps linework. | 
| Provo,
                UT Utah Co. United States | 1700 North / 1730 North / 1500 West (40.25650, -111.68530) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.4324 | Other (At-Grade) Single-Lane | 1998 | ICD estimated from Google Maps linework. | 
| Provo,
                UT Utah Co. United States | 300 North / Seven Peaks Blvd. (40.23737, -111.63750) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.7337 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1997 | ICD estimated from Google Maps linework. | 
| Provo,
                UT Utah Co. United States | 5000 North / Edgewood Dr. (40.30066, -111.65750) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 19.1282 | Other (At-Grade) Single-Lane | 1999 | ICD estimated from Google Maps linework. | 
| Jessup,
                MD Howard Co. United States | Canine Rd. / MD 32 EB Ramps (39.10101, -76.76953) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 38.0005 | Freeway Ramps (Grade-Separated) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| Mount Aetna,
                MD Washington Co. United States | MD 66 (Mapleville Rd.) / Mount Aetna Rd. (39.60243, -77.62425) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 44.1703 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Scaggsville,
                MD Howard Co. United States | Hopkins-Gorman Rd. / US 29 NB Ramps (39.15846, -76.88660) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 59.2695 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2002 | ICD estimated from Google Maps linework. | 
| Medford,
                MN Steele Co. United States | CR 12 / I-35 SB Ramps (44.17364, -93.26057) | Roundabout Existing | All-Way Yield None | 6 Approaches 0 Driveways 67.6722 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Maplewood,
                MN Ramsey Co. United States | Frost Ave. / English St. (44.99927, -93.04572) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.5374 | Other (At-Grade) Single-Lane | 2002 | Completed October 2002. Twenty-year ADT is 15,000. ICD estimated from Google Maps linework. | 
| Stillwater,
                MN Washington Co. United States | Rutherford Rd. / 72nd St. / New England Pl. (School House Circle) (45.05673, -92.85909) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 55.6830 | Other (At-Grade) Single-Lane | 1999 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Seattle,
                WA King Co. United States | Ashworth Ave. N / N 38th St. (47.65269, -122.34020) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 160.1009 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Nashua,
                NH Hillsborough Co. United States | SR 130 (Broad St.) / Coburn Ave. / Chuck Drudging Dr. (42.75617, -71.51653) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.0619 | Other (At-Grade) Single-Lane | 2002 | Entrance to north high school, very heavy traffic in AM peak. ICD estimated from Google Maps linework. | 
| Edmonton,
                AB Edmonton Capital Region Canada | St. Albert Trl. / Groat Rd. / 118th Ave. NW (53.57027, -113.54940) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 58.1573 | Other (At-Grade) Multilane (2 Lane, unspecified) | ICD estimated from Google Maps linework. | |
| Las Vegas,
                NV Clark Co. United States | Carey Ave. / Belmont St. (36.20325, -115.10700) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 13.4923 | Other (At-Grade) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| Las Vegas,
                NV Clark Co. United States | Carey Ave. / Hamilton St. (36.20310, -115.12310) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.9484 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | ICD estimated from Google Maps linework. | 
| Las Vegas,
                NV Clark Co. United States | Carey Ave. / Revere St. (36.20313, -115.15180) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.8396 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | ICD estimated from Google Maps linework. | 
| Las Vegas,
                NV Clark Co. United States | Hills Dr. / Longspur Dr. (36.19252, -115.29770) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.2295 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1991 | ICD estimated from Google Maps linework. | 
| Alpine,
                UT Utah Co. United States | Canyon Crest Rd. / Alpine Hwy. (S. Main St.) (40.44784, -111.77840) | Roundabout Existing | Uncontrolled Active Pedestrian Warning (flashing yellow) | 4 Approaches 0 Driveways 42.7174 | Other (At-Grade) Single-Lane | 2003 | Free-merge, active pedestrian warning Functional Class: Major Arterial ICD estimated from Google Maps linework. | 
| Truckee,
                CA Nevada Co. United States | Hwy 89 / I-80 EB Ramps (39.32243, -120.20770) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 55.4354 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2005 | ICD estimated from Google Maps linework. | 
| Green Bay,
                WI Brown Co. United States | Airport Dr. (STH 172) / S. Pine Tree Rd. (44.49955, -88.14986) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 44.2968 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Calgary,
                AB Calgary Region Canada | 8th St. / Frontenac Ave. (51.02937, -114.08350) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 28.5433 | Other (At-Grade) Single-Lane | 2005 | Driveway serving house entering roundabout. ICD estimated from Google Maps linework. | 
| Calgary,
                AB Calgary Region Canada | Discovery Ridge Blvd. / Discovery Dr. (51.01179, -114.20000) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.0855 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | Date estimated. ICD estimated from Google Maps linework. | 
| (unincorporated),
                VA Accomack Co. United States | Rte 316 / Rte 13 Bus. / Rte. 126 (37.70896, -75.70512) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4011 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Hollymead,
                VA Albemarle Co. United States | Rte. 649 / Rte. 606 / Airport Rd. (38.13692, -78.44793) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.3634 | Other (At-Grade) Single-Lane | 2005 | Serves as entrance to airport. Previously controlled by all-way stop ICD estimated from Google Maps linework. | 
| Gloucester,
                VA Gloucester Co. United States | W Main St. / Waltons Ln. / Fox Centre Pkwy. (37.39841, -76.52674) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.9525 | Other (At-Grade) Single-Lane | 2005 | West of Route 17, near Walmart and Home Depot retail. ICD estimated from Google Maps linework. | 
| Newport News,
                VA Newport News Co. United States | Avenue of the Arts / University Pl. / Shoe Ln. (37.06211, -76.49220) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.4977 | Other (At-Grade) Single-Lane | 2005 | Christopher Newport University entrance. ICD estimated from Google Maps linework. | 
| Richmond,
                VA Henrico Co. United States | N. Lombardy St. / School Rd. / Admiral St. (37.55981, -77.45100) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.5627 | Other (At-Grade) Single-Lane | 2005 | Serves as entrance to Virgina Union University. ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Buena Vista Blvd. / Stillwater Trl. (28.90300, -81.98000) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 60.6426 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | Bypass lane for southbound through movement in addition to two entry lanes. ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Buena Vista Blvd. / Bailey Trl. / Odell Cir. (28.89440, -81.97949) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 55.4194 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2005 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Buena Vista Blvd. / St. Charles Pl. / Bonita Blvd. (28.88176, -81.98260) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 55.4261 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2005 | Fatal crash June 16, 2011. 11861-05. ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Buena Vista Blvd. / Bailey Trl. (28.87536, -81.99070) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 56.4754 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Stillwater Trl. / Canal St. (28.90453, -81.97457) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 57.5051 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Morse Blvd. / Stillwater Trl. (28.90661, -81.96886) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.3218 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Morse Blvd. / Lake Sumter Landing (28.90930, -81.96960) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 55.4114 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | Bypass lane for northbound through movement. ICD estimated from Google Maps linework. | 
| St. Louis,
                MO St. Louis Co. United States | Halls Ferry / MO 367 (38.72251, -90.24017) | Rotary Existing | All-Way Yield None | 6 Approaches 0 Driveways 86.6571 | Other (At-Grade) Multilane (2 Lane, unspecified) | three of the six approaches are multilane and have dual lanes of traffic merging into both lanes of the roundabout; roundabout is unstriped. Description as follows: Halls Ferry Circle is 3 lanes wide, 350 foot diameter, 35 miles per hour and has 5 major roadways entering (from http://www.ballwin.mo.us/minutes_062402.html) ICD estimated from Google Maps linework. | |
| Redmond,
                WA King Co. United States | Trilogy Pkwy NE / NE Greens Crossing Rd. (47.70752, -122.02660) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.7178 | Other (At-Grade) Single-Lane | 2004 | Adjacent to golf course and semi-retired community. Completed June 2004. ICD estimated from Google Maps linework. | 
| Bethlehem,
                NY Albany Co. United States | Krumkill Rd. / Schoolhouse Rd. (CR 204) (42.66450, -73.84795) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 33.3728 | Other (At-Grade) Single-Lane | 2008 | South entrance built for a road that was subsequently rejected Previously controlled by two-way stop Functional Class: Minor Arterial ICD estimated from Google Maps linework. | 
| Colonie,
                NY Albany Co. United States | Albany Shaker Rd. / Maxwell Rd. (42.72396, -73.79143) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.7278 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | Intersection is being relocated to east. Addition of a fourth leg is planned. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Bellingham,
                WA Whatcom Co. United States | Cordata Pkwy. / Kellogg Rd. (48.79511, -122.49170) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.3384 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | Primary access to Whatcom Community College. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Orlando,
                FL Orange Co. United States | N. Lake Orlando Pkwy / Cinderlane Pkwy (28.60276, -81.43106) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 20.9715 | Other (At-Grade) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| Blacksburg,
                VA Montgomery Co. United States | Washington St. / Campus Dr. / Stadium Rd. (37.22169, -80.42204) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 62.7690 | Other (At-Grade) Single-Lane | 2005 | On the campus of Virginia Tech. ICD estimated from Google Maps linework. | 
| Chico,
                CA Butte Co. United States | W. 8th Ave. / Meadow Rd. (39.74013, -121.86330) | Roundabout Existing | All-Way Yield None | 3 Approaches 2 Driveways 24.7963 | Other (At-Grade) Single-Lane | 2005 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Scottsdale,
                AZ Maricopa Co. United States | N. 96th St. / E. Cholla St. (33.58979, -111.87390) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.8470 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Scottsdale,
                AZ Maricopa Co. United States | N. 96th St. / E. Sweetwater Ave. (33.60433, -111.87390) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.8420 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Phoenix,
                AZ Maricopa Co. United States | 99th Ave. / Lower Buckeye Rd. (33.42116, -112.27260) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 59.8104 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2005 | ICD estimated from Google Maps linework. | 
| Scottsdale,
                AZ Maricopa Co. United States | 108th St. / Cactus Rd. (33.59701, -111.84790) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.8652 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Camp Verde,
                AZ Yavapai Co. United States | Middle Verde Rd. / I-17 NB Ramps (34.61039, -111.86160) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.4040 | Freeway Ramps (Grade-Separated) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Payson,
                AZ Gila Co. United States | SR 87 / Tyler Pkwy / Home Depot Entrance (34.26614, -111.32200) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.4034 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2005 | ICD estimated from Google Maps linework. | 
| Truckee,
                CA Nevada Co. United States | Hwy 89 / I-80 WB Ramps (39.32386, -120.20760) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 40.6518 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2005 | ICD estimated from Google Maps linework. | 
| Vancouver,
                BC Greater Vancouver Regional District Canada | Stanley Park Dr. / Pipeline Rd. / Park Entrance (49.29745, -123.13610) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.7024 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Surrey,
                BC Greater Vancouver Regional District Canada | King George Hwy / 8th Ave. (49.01661, -122.76240) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.4647 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| North Vancouver,
                BC Greater Vancouver Regional District Canada | Keith Rd. / Chesterfield Ave. (49.31817, -123.07670) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 22.5774 | Other (At-Grade) Single-Lane | 2003 | ICD estimated from Google Maps linework. | 
| Oroville,
                CA Butte Co. United States | Montgomery St. / Washington Ave. / Table Mountain Blvd. (39.51611, -121.54970) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.8544 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Blue Lake,
                CA Humboldt Co. United States | Blue Lake Blvd. / Chartin Rd. (40.88640, -123.99540) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.3789 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Washington,
                DC N/A Co. United States | Randle Circle (Mass. Ave. / Minn. Ave. / K St.) (38.87810, -76.96148) | Signalized Roundabout/Circle Existing | Signal None | 7 Approaches 0 Driveways 118.0801 | Other (At-Grade) Multilane (2 Lane, unspecified) | ICD estimated from Google Maps linework. | |
| Acoma Indian Reservation,
                NM McKinley Co. United States | SH 30 / I-40 WB Ramps (35.07505, -107.56110) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 65.4884 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2010 | Merging right-turn bypass lane on north leg. Series of 3 roundabouts. ICD estimated from Google Maps linework. | 
| Greensboro,
                NC Guilford Co. United States | Lake Jeanette Rd. / Bass Chapel Rd. / N. Elm St. (36.14622, -79.81002) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.8620 | Other (At-Grade) Single-Lane | 2006 | This location currently meets traffic signal warrants. We are installing the roundabout instead of a traffic signal. Previously controlled by stop sign Functional Class: Minor Arterial ICD estimated from Google Maps linework. | 
| Orinda,
                CA Contra Costa Co. United States | Hall Dr. / Donald Dr. (37.86411, -122.15310) | Traffic Calming Circle Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 17.9148 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Lexington,
                KY Fayette Co. United States | W Reynolds Rd. / Keithshire Way / Wellington Way (37.99520, -84.53814) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 62.1196 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1999 | Opened between 1997 and 2002. Functional Class: Collector ICD estimated from Google Maps linework. | 
| Vernon,
                BC North Okanagan Regional District Canada | 30th Ave. / 31st Ave. (50.26386, -119.28024) | Roundabout Existing | All-Way Yield Active Pedestrian Warning (flashing yellow) | 3 Approaches 0 Driveways 22.9043 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Unionville,
                PA Chester Co. United States | Rte. 82 (Doe Run Rd.) / Unionville Rd. (39.89142, -75.72215) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 27.4909 | Other (At-Grade) Single-Lane | 2005 | Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Telluride,
                CO San Miguel Co. United States | W. Colorado Ave. / Mahoney Dr. / Brewery Rd. (37.94135, -107.82080) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.9083 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Cle Elum,
                WA Kittitas Co. United States | SR 903 / Bullfrog Rd (47.20810, -120.98210) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.3222 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Bend,
                OR Deschutes Co. United States | NW Crossing Dr. / Lemhi Pass Rd. (44.06210, -121.34600) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.7544 | Other (At-Grade) Single-Lane | 2006 | New roads as part of NW Crossing Development ICD estimated from Google Maps linework. |