| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Columbia,
                MO Boone Co. United States | Bristol Lake Dr. / Braddington Dr. (38.89246, -92.29611) | Traffic Calming Circle Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 22.3098 | Other (At-Grade) Single-Lane | 2006 | fourth approach is now built; see Google satellite view ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Nocona Pkwy. / Kentsfield Ln. (38.89915, -92.28609) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 45.5450 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Ponderosa St. / Nocona Pkwy. / Kentsfield Ln. (38.90172, -92.28732) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 44.6139 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Ponderosa St. / Philips Farm Rd. (38.90387, -92.29025) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 40.8948 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Columbia Gorge Pkwy. / (unknown) (38.92607, -92.25845) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 29.7324 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Hwy WW / S Rolling Hills Rd. (38.92866, -92.25605) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.2440 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2016 | |
| Columbia,
                MO Boone Co. United States | Hwy Z / E St Charles Rd. (38.97300, -92.20385) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 40.8550 | Other (At-Grade) Single-Lane | 2014 | Year Completed estimated (2013-2015). ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Rangeline Rd. / I-70 WB Ramps (38.96927, -92.32512) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 26.0000 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Clark Ln. / Ballenger Pl. (38.96325, -92.26735) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 41.7892 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Clark Ln. / E St Charles Rd. / Lakewood Dr. (38.96322, -92.25112) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 43.6465 | Other (At-Grade) Single-Lane | 2013 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | E St Charles Rd. / Lake of the Woods Rd. / Player Pl. (38.96324, -92.24605) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 1 Driveways 26.9308 | Other (At-Grade) Single-Lane | 2013 | Oval shaped. ICD estimated from Google Maps linework. | 
| Eastport,
                MO Boone Co. United States | Bull Run Dr. / Port Way SE (38.95769, -92.25171) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 31.5766 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Colonial Gardens,
                MO Boone Co. United States | Rollins Rd. / S Fairview Rd. (38.94681, -92.38090) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 12.0752 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2013 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Rollins Rd. / (parking lot entrance) (38.94644, -92.38714) | Roundabout Existing | All-Way Yield Unknown | 2 Approaches 1 Driveways 23.2217 | Other (At-Grade) Single-Lane | 2004 | Entrance to parking lot for Bonnie View Nature Sanctuary. ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Rangeline Rd. / I-70 EB Ramps (38.96822, -92.32486) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 31.5719 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Grant Ln. / Trailside Dr. / Post Oak Dr. (38.92438, -92.39510) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 16.7249 | Other (At-Grade) Single-lane w/ Traversable Central Island | 1995 | Year Completed estimated (1994-1995). ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | S Scott Blvd. / Vawter School Rd. / S Brushwood Lake Rd. (38.91264, -92.40001) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 34.3846 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Durango Dr. / Flatwater Dr. (39.01682, -92.27705) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 28.7664 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | MO-763 / Hwy VV / E Prathersville Rd. / N Wagon Trail Rd. (39.01622, -92.32299) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 53.8214 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | American Pkwy. / Saddlebrook Pl. (38.99086, -92.32150) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 34.3466 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Blue Ridge Rd. / Caribou Dr. / N Garth Ave. (38.98316, -92.33732) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 26.9233 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Mexico Gravel,
                MO Boone Co. United States | Mexico Gravel Rd. / Vandiver Dr. / N Hinkson Creek Rd. (38.98120, -92.27995) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 41.7786 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Mexico Gravel Rd. / Ballenger Ln. (38.98530, -92.26479) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 39.9195 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Mexico Gravel,
                MO Boone Co. United States | Vandiver Dr. / US 63 NB Ramps (38.97632, -92.27992) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 55.7087 | Freeway Ramps (Grade-Separated) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Vandiver Dr. / Parker St. (38.97104, -92.31310) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 61.2841 | Other (At-Grade) Single-Lane | 2018 | ICD estimated from Google Maps linework. | 
| Zionsville,
                IN Boone Co. United States | Ford Rd. / Bloor Ln. (39.95703, -86.27903) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 28.3800 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| Zionsville,
                IN Boone Co. United States | Whitestown Rd. / Ford Rd. / Mulberry St. / Pleasant View Rd. (39.96447, -86.28292) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.6154 | Other (At-Grade) Single-Lane | 2017 | Yield-controlled right-turn bypass lane on west leg. ICD estimated from Google Maps linework. | 
| Whitestown,
                IN Boone Co. United States | Main St. / Central Blvd. (39.95261, -86.34519) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 44.8616 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | ICD estimated from Google Maps linework. | 
| Whitestown,
                IN Boone Co. United States | Main St. / Mills Dr. (39.95116, -86.34507) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 54.9338 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | ICD estimated from Google Maps linework. | 
| Whitestown,
                IN Boone Co. United States | Whitestown Pkwy. / S Indianapolis Rd. (39.94596, -86.35860) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 61.3474 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | http://youarecurrent.com/2018/02/23/roundabout-construction-to-begin-in-april-at-whitestown-parkway-indianapolis-road/ ICD estimated from Google Maps linework. | 
| Zionsville,
                IN Boone Co. United States | Michigan Rd. (US 421) / West Base Line Rd. (40.04096, -86.28524) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.2318 | Other (At-Grade) Single-Lane | 2015 | Merge-type right-turn bypass lanes on north and south legs. ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Bass Ave. / S Williams St. (38.94899, -92.31709) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 27.8651 | Other (At-Grade) Single-Lane | 2011 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Business Loop 70 / I-70 WB On-Ramp (38.96647, -92.35328) | Roundabout Existing | All-Way Yield Unknown | 2 Approaches 1 Driveways 35.2871 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2016 | Replaced older roundabout that was built in 1996. ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Business Loop 70 / I-70 EB Ramps / Interstate 70 Dr. SW (38.96640, -92.35032) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 46.4304 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Business Loop 70 / I-70 WB Ramps / Creasy Springs Rd. (38.96655, -92.35241) | Roundabout Removed | All-Way Yield Unknown | 5 Approaches 0 Driveways 94.7178 | Freeway Ramps (Grade-Separated) Single-Lane | 1996 | First roundabout in Missouri by Missouri DOT. Originally built in 1996 per article: https://www.voxmagazine.com/news/all-about-roundabouts-in-columbia/article_93724b2b-8b20-5228-b4de-315c5c3d2004.html. Replaced with roundabout to immediate west. ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Interstate 70 Dr. SE / N Keene St. (38.96117, -92.28877) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://www.facebook.com/ColumbiaMissouriPublicWorks/posts/the-roundabout-at-the-keene-street-and-i-70-drive-se-intersection-is-open-to-tra/3580714545294334/ | 
| Zionsville,
                IN Boone Co. United States | S 875 E / E 500 S (Whitestown Rd.) (39.96686, -86.30310) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2021 | Year Completed estimated (2020-2021). https://www.zionsville-in.gov/DocumentCenter/View/2640/Whitestown-Road-CR-875-North-Roundabout | 
| Zionsville,
                IN Boone Co. United States | W Oak St. / S 850 E (Cooper Rd.) (39.94983, -86.30720) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2021 | |
| Florence,
                KY Boone Co. United States | Camp Ernst Rd. / Pleasant Valley Rd. (39.00075, -84.70126) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 60.9600 | Other (At-Grade) Single-Lane | 2020 | |
| Florence,
                KY Boone Co. United States | Sherwood Lakes Dr. / Biltmore Connector (38.95524, -84.62936) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2020 | |
| Columbia,
                MO Boone Co. United States | Nocona Pkwy. / Endeavor Ave. (38.89488, -92.28544) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.8159 | Other (At-Grade) Single-Lane | 2016 | Year Completed estimated (2015-2017). ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | Cascades Dr. / Chelan Dr. / Chelan Cir. (38.88024, -92.37684) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.8218 | Other (At-Grade) Single-Lane | 2004 | Year Completed estimated (2003-2005). ICD estimated from Google Maps linework. | 
| Columbia,
                MO Boone Co. United States | E St Charles Rd. / Battle Ave. (38.96887, -92.22748) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 37.1430 | Other (At-Grade) Single-Lane | 2019 | http://gis.gocolumbiamo.com/BattleStCharlesRoundabout.jpg ICD estimated from Google Maps linework. | 
| Union,
                KY Boone Co. United States | Mt Zion Rd. / (unknown) (38.94650, -84.67308) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8033 | Other (At-Grade) Single-Lane | 2018 | http://www.cityofunionky.org/ky-536mount-zion-road-update/ ICD estimated from Google Maps linework. | 
| Union,
                KY Boone Co. United States | Mt Zion Rd. / Old Union Rd. (38.94469, -84.68042) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2019 | http://www.cityofunionky.org/ky-536mount-zion-road-update/ | 
| Ashland,
                MO Boone Co. United States | MO-M (E Broadway) / MO-Y / US 63 NB Ramps (38.77429, -92.25118) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 45.7200 | Freeway Ramps (Grade-Separated) Single-Lane | 2014 | Year Completed estimated (2013-2015). | 
| Ashland,
                MO Boone Co. United States | MO-M (E Broadway) / US 63 SB Ramps (38.77431, -92.25328) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 45.7200 | Freeway Ramps (Grade-Separated) Single-Lane | 2014 | Year Completed estimated (2013-2015). | 
| Lebanon,
                IN Boone Co. United States | Indianapolis Ave. / Hall Baker Rd. (40.03112, -86.45066) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2016 | Yield-controlled right-turn bypass lane on south leg due to skew. Year Completed estimated (2015-2016). | 
| Lebanon,
                IN Boone Co. United States | Indianapolis Ave. / Hendricks Dr. / N Allen Dr. (40.03429, -86.45320) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2016 | Elliptical shaped. ICD 140 feet x 110 feet. Year Completed estimated (2015-2016). | 
| Zionsville,
                IN Boone Co. United States | Talbott Dr. / Bennett Pkwy. (39.94738, -86.24236) | Other Existing | Uncontrolled None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | In an apartment complex with parking along circulatory roadway. | |
| Zionsville,
                IN Boone Co. United States | Cimmaron Ash Dr. / Autumn Ash Dr. / Purple Ash Dr. (39.99771, -86.25639) | Other Existing | All-Way Stop None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Zionsville,
                IN Boone Co. United States | Willow Bend Trl. / Wildlife Trl. / Weeping Willow Dr. (39.99659, -86.25178) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Zionsville,
                IN Boone Co. United States | Willow Rd. / W 131st St. / Riverbirch Run (39.97702, -86.24142) | Traffic Calming Circle Existing | All-Way Stop Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Zionsville,
                IN Boone Co. United States | Willow Rd. / Brittany Dr. / Austin Oaks Ct. (39.97730, -86.25223) | Traffic Calming Circle Existing | All-Way Stop Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Whitestown,
                IN Boone Co. United States | Perry Worth Rd. / Mills Dr. / (parking) (39.95014, -86.34963) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 57.9120 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2019 | Year Completed estimated (2018-2020). | 
| Whitestown,
                IN Boone Co. United States | Indigo Blue Blvd. / Limelight Ln. (39.98793, -86.34950) | Other Existing | Other Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands or YIELD signs. | |
| Zionsville,
                IN Boone Co. United States | Willow Rd. / Woods Edge Dr. (39.97658, -86.24725) | Traffic Calming Circle Existing | All-Way Stop Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Zionsville,
                IN Boone Co. United States | Bentley Dr. / Mulsanne Dr. / Corniche Dr. / Camargue Dr. (39.94582, -86.28831) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Zionsville,
                IN Boone Co. United States | Willow Springs Dr. / Golden Willow Dr. (39.99700, -86.24619) | Other Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Ashland,
                MO Boone Co. United States | E Rte Y (Broadway) / Industrial Dr. (38.77420, -92.24893) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://hi-in.facebook.com/SaraForMissouri/photos/a.1410590502324879/3879420848775153 | 
| Idaho Falls,
                ID Bonneville Co. United States | E Iona Rd. / 25th E (43.52586, -111.98394) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2005 | Year Completed estimated (2004-2006). | 
| Ammon,
                ID Bonneville Co. United States | Crowley Rd. / E 17th St. (43.48173, -111.94459) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 20.1168 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2019 | |
| Idaho Falls,
                ID Bonneville Co. United States | 1st St. / 45th St. E (Crowley Rd.) (43.49621, -111.94440) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8637 | Other (At-Grade) Single-Lane | 2020 | Designed to be expandable inward to dual lanes in the future. | 
| Idaho Falls,
                ID Bonneville Co. United States | E Lincoln Rd. / E Hitt Rd. (N 25th) (43.51143, -111.98410) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2001 | Right-turn-only lane on west leg. Year Completed estimated (1992-2003). Converted from single-lane to multilane in 2018. 21442 | 
| Idaho Falls,
                ID Bonneville Co. United States | S Utah Ave. / Bridgeport Dr. (43.48859, -112.04979) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.6574 | Other (At-Grade) Single-Lane | 2002 | Eagle Rock Fountain in center island. Roundabout was partially reconstructed with geometric improvements in 2014. Original construction was in 2002. ICD estimated from Google Maps linework. | 
| Idaho Falls,
                ID Bonneville Co. United States | Bridgeport Dr. / River Walk Dr. (43.48855, -112.04801) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 29.4610 | Other (At-Grade) Single-Lane | 2007 | Originally built without splitter islands. Splitter islands added to north and west legs in 2016. ICD estimated from Google Maps linework. | 
| Idaho Falls,
                ID Bonneville Co. United States | E Lincoln Rd. / Ammon Rd. (43.51133, -111.96428) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 40.7101 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | ICD estimated from Google Maps linework. | 
| Idaho Falls,
                ID Bonneville Co. United States | Memorial Dr. / Riverside Dr. / E St. (43.49716, -112.04057) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.5861 | Other (At-Grade) Single-Lane | 2012 | Right-turn-only lane on west leg. ICD estimated from Google Maps linework. | 
| Idaho Falls,
                ID Bonneville Co. United States | S Boulevard / N Corner Ave. / Elm St. (43.48859, -112.03375) | Roundabout Existing | All-Way Yield None | 3 Approaches 2 Driveways 32.9270 | Other (At-Grade) Single-Lane | 2018 | Fourth leg is departure only. ICD estimated from Google Maps linework. | 
| Idaho Falls,
                ID Bonneville Co. United States | Carriagegate Ln. / Nottingham Ln. (43.46096, -112.04641) | Other Existing | Uncontrolled None | 4 Approaches 0 Driveways 25.1400 | Other (At-Grade) Single-Lane | 2005 | No traffic control. ICD estimated from Google Maps linework. | 
| Idaho Falls,
                ID Bonneville Co. United States | W 65th S / S 45th W / I-15 NB Ramps (43.43835, -112.12018) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Single-Lane | 2022 | |
| Idaho Falls,
                ID Bonneville Co. United States | W 65th W / Saint John Rd. / I-15 SB Ramps (43.43962, -112.12198) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Single-Lane | 2022 | |
| Ammon,
                ID Bonneville Co. United States | E Lincoln Rd. / N 45th E (Crowley Rd.) (43.51059, -111.94433) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2020 | https://www.eastidahonews.com/2020/09/major-intersection-to-close-next-week-for-roundabout-construction/ | 
| Sandpoint,
                ID Bonner Co. United States | Schweitzer Cutoff Rd / N Boyer Ave (48.30915, -116.55190) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2017 | |
| Sandpoint,
                ID Bonner Co. United States | N Boyer Ave / Larch St (48.28018, -116.55663) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 34.9717 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Bonn,
                North Rhine-Westphalia Bonn Germany | Potsdamer Platz (50.74297, 7.07777) | Rotary Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 98.2503 | Other (At-Grade) Multilane (2 Lane, unspecified) | Requires lane changing for some movements. ICD estimated from Google Maps linework. | |
| New Richmond,
                QC Bonaventure Canada | Rte 132 / Chemin Cyr (48.17504, -65.84819) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.4508 | Other (At-Grade) Single-Lane | 2008 | Year Completed estimated (2006-2010). ICD estimated from Google Maps linework. | 
| José Antonio Galán,
                Capital District Bogotá Colombia | Calle 59S / Carrera 84C / Ave Cdad. de Cali / Calle 60S (4.60870, -74.18122) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways | Other (At-Grade) Multilane (3+ Lane) | ||
| Bodø,
                Nordland Bodø Norway | Fv80 (Sjøgata - Jernbaneveien) / Sjøgata / Bankgata (67.28591, 14.38897) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bodø,
                Nordland Bodø Norway | Fv80 (Bodøveien) / Fv834 (Kirkeveien) (67.28089, 14.42310) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Bodø,
                Nordland Bodø Norway | Fv834 (Kirkeveien) / Hålogalandsgata / Junkerveien (67.28189, 14.42403) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bodø,
                Nordland Bodø Norway | Fv80 (Bodøveien) / Olav V gate (67.27909, 14.43175) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (3+ Lane) | ||
| Reeuwijk,
                South Holland Bodegraven-Reeuwijk Netherlands | Oude Tol (52.05402, 4.72620) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Reeuwijk,
                South Holland Bodegraven-Reeuwijk Netherlands | Oud Reeuwijkseweg / Reeuwijkse Randweg (52.05419, 4.72124) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Reeuwijk,
                South Holland Bodegraven-Reeuwijk Netherlands | Dokter J. Rupkerotonde [N459 / Reeuwijkse Randweg] (52.05806, 4.72507) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Reeuwijk,
                South Holland Bodegraven-Reeuwijk Netherlands | Dokter Ingenieur L.G.H. Fortuijnrotonde [N459 / A12 SB Ramps] (52.05960, 4.72710) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (3+ Lane) | Turbo roundabout. | |
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | N459 (Goudseweg) / A11 SB Ramps (52.06994, 4.74096) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | Raindrop shaped. Turbo roundabout. | |
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | N459 (Goudseweg) / A11 NB Ramps / Europaweg (52.07096, 4.74147) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | Turbo roundabout. | |
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | Gruttoplein (52.07224, 4.74799) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | Broekveldselaan / Groene Ree / Weideveldselaan (52.07331, 4.75897) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | Racetrack shaped. | |
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | Broekveldselaan / Kolblei / Klaproos (52.07637, 4.76019) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | N458 / Broekveldselaan (52.08153, 4.76179) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | N458 / Willem de Zwijgerstraat (52.08979, 4.75067) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | N458 / Kleienhof / Oranjehof (52.08998, 4.74286) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | N458 / Dammekant (52.08865, 4.73742) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | Buitenkerk / Kerkweg (52.09778, 4.73861) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bodegraven,
                South Holland Bodegraven-Reeuwijk Netherlands | Dammekant / Rijksstraatweg (52.10121, 4.73386) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bochum,
                North Rhine-Westphalia Bochum Germany | K2 (Heusnerstraße) / Kohlenstraße / Obere Stahlindustrie / A448 NB Ramps (51.47237, 7.19149) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Single-Lane | ||
| Bochum,
                North Rhine-Westphalia Bochum Germany | Am Thie (K20 / K24) (51.45718, 7.17585) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bochum,
                North Rhine-Westphalia Bochum Germany | K4 / K24 (51.45883, 7.17849) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane |