| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Hoover,
                AL Jefferson Co. United States | Main St. / Creekside Ave. (33.37445, -86.81575) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2006 | Right-turn-only arrows on entries. Year Completed estimated (2005-2006). | 
| Highland Lakes,
                AL Shelby Co. United States | Highland Village Trl. / Highland Village Dr. (33.40922, -86.63478) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2006 | |
| Birmingham,
                AL Jefferson Co. United States | Liberty Pkwy. / (parking) (33.47619, -86.70359) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 60.9600 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2018 | |
| Vestavia Hills,
                AL Jefferson Co. United States | Liberty Pkwy. / Liberty Rd. (33.47421, -86.69406) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 60.9600 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2021 | Year Completed estimated (2019-2021). | 
| Clarksville,
                TN Montgomery Co. United States | Kirkwood Rd. / Campus Dr. (36.56643, -87.20339) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 48.7680 | Other (At-Grade) Single-Lane | 2023 | Year Completed estimated (2022-2023). | 
| Cambridge,
                ON Wellington Canada | Hespeler Rd. / Kossuth Rd. / CR 124 / (unknown) (43.47206, -80.30539) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 58.0000 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2019 | Year Completed estimated (2018-2019). | 
| Elmira,
                ON Waterloo Canada | William St. / Country Club Estates Dr. (43.60393, -80.57176) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.0000 | Other (At-Grade) Single-Lane | 2015 | Year Completed estimated (2014-2016). | 
| Elmira,
                ON Waterloo Canada | William St. / Kissing Bridge Dr. (43.60348, -80.56715) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.0000 | Other (At-Grade) Single-Lane | 2016 | Year Completed estimated (2014-2016). | 
| Woolwich,
                ON Waterloo Canada | Line 86 (Church St. W) / Floradale Rd. (43.60246, -80.58569) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2023 | https://www.observerxtra.com/moving-ahead-with-plans-for-two-roundabouts-in-woolwich/ | 
| Fairview,
                MT Richland Co. United States | SR 200 / SR 201 (47.86229, -104.04312) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | https://www.roundupweb.com/story/2024/11/06/news/construction-substantially-complete-on-fairview-west-project/21482.html | 
| Grand Island,
                NE Hall Co. United States | Prairieview St. / Ring Rd. (40.88405, -98.37980) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2019 | Year Completed estimated (2016-2020). | 
| Grand Island,
                NE Hall Co. United States | Rae Rd. / Prairieview Rd. / James Rd. (40.88074, -98.37995) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2019 | Right-turn-only lane on east leg. Year Completed estimated (2016-2020). | 
| Grand Island,
                NE Hall Co. United States | Norseman Ave. / Ebony Ln. (40.94204, -98.39270) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4320 | Other (At-Grade) Single-Lane | 2011 | Street light pole in central island. Year Completed estimated (2010-2011). | 
| Napa,
                CA Napa Co. United States | Soscol Ferry Rd. / SR 221 / SR 12 EB Ramps (38.24117, -122.26975) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.2440 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max) | 2024 | https://dot.ca.gov/caltrans-near-me/district-4/d4-projects/soscol-junction | 
| Napa,
                CA Napa Co. United States | SR 221 (Napa Vallejo Hwy.) / SR 12 WB Entrance Ramp (38.24207, -122.26930) | Roundabout Existing | All-Way Yield None | 2 Approaches 0 Driveways 44.1960 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max) | 2024 | https://dot.ca.gov/caltrans-near-me/district-4/d4-projects/soscol-junction | 
| American Canyon,
                CA Napa Co. United States | Devlin Rd. / Boone Dr. / (parking) (38.20182, -122.26679) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2022 | |
| Carmel,
                IN Hamilton Co. United States | West Park West (39.95713, -86.21220) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2019 | Year Completed estimated (2018-2020). East leg added 2021. | 
| Carmel,
                IN Hamilton Co. United States | Milgate Dr. / Matt St. (39.99149, -86.11741) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2024 | Painted splitter islands. | 
| Carmel,
                IN Hamilton Co. United States | Twain Dr. / Grisham Dr. (39.98990, -86.11497) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 18.2880 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2024 | Painted splitter islands. | 
| Austin,
                TX Travis Co. United States | S Pleasant Valley Rd. / Teri Rd. (30.19701, -97.74418) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 28.9560 | Other (At-Grade) Single-Lane | 2024 | |
| Vernon,
                BC North Okanagan Canada | 58 Ave. / 20 St. (50.28910, -119.25813) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.0000 | Other (At-Grade) Single-Lane | 2018 | Year Completed estimated (2016-2018). | 
| Vernon,
                BC North Okanagan Canada | Commonage Rd. / Predator Ridge Rd. (50.18361, -119.38749) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.0000 | Other (At-Grade) Single-Lane | 2017 | Year Completed estimated (2016-2018). | 
| Kamloops,
                BC Thompson-Nicola Canada | Valleyview Dr. / Grand Blvd. / Gala Dr. (50.67064, -120.22730) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.0000 | Other (At-Grade) Single-Lane | 2016 | Year Completed estimated (2012-2016). | 
| Kamloops,
                BC Thompson-Nicola Canada | University Dr. / (parking) (50.66969, -120.36021) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.0000 | Other (At-Grade) Single-Lane | 2018 | |
| Nanaimo,
                BC Nanaimo Canada | Dewar Rd. / Norton Rd. (49.23074, -123.99592) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 33.0000 | Other (At-Grade) Single-Lane | 2017 | North leg added 2014. Yield control added to east and west legs 2017; previously uncontrolled. | 
| Nanaimo,
                BC Nanaimo Canada | Labieux Rd. / Kenworth Rd. (49.20171, -123.99714) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 40.0000 | Other (At-Grade) Single-Lane | 2019 | Year Completed estimated (2017-2021). | 
| Langford,
                BC Capital Canada | Lakepoint Way / Langford Lake Rd. (48.44613, -123.53495) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.0000 | Other (At-Grade) Single-Lane | 2015 | |
| Westlake,
                AL Mobile Co. United States | Jeff Hamilton Rd. / Johnson Rd. (30.62752, -88.29247) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | Opened October 20, 2024. https://www.mobilecountyal.gov/road-closings/new-roundabout-opened-johnson-road-w-jeff-hamilton-road/ | 
| Basehor,
                KS Leavenworth Co. United States | N 155th St. / Parallel Rd. (39.12860, -94.93856) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | https://www.facebook.com/photo/?fbid=843322321249859&set=happy-friday-basehor-we-are-very-excited-to-share-that-the-155th-street-roundabo | 
| Macon,
                GA Bibb Co. United States | US 80-GA 22 (Eisenhower Pkwy.) / GA 361 (Fulton Mill Rd.) (32.79946, -83.75254) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Single-Lane | 2023 | Yield-controlled right-turn bypass lanes on east and west legs. | 
| Columbia,
                MO Boone Co. United States | Nocona Pkwy. / Artemis Dr. (38.89292, -92.28649) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2023 | Year Completed estimated (2022-2023). | 
| Davison,
                MI Genesee Co. United States | Lapeer Rd. / Oak Rd. (43.01793, -83.49786) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | https://davisonindex.mihomepaper.com/articles/new-roundabout-opens/ | 
| Evergreen,
                CO Clear Creek Co. United States | US 40 / Homestead Rd. / I-70 WB Entrance Ramp (39.72195, -105.40944) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Single-Lane | 2024 | Through bypass lane on east leg. Year Completed estimated (2023-2024). https://www.codot.gov/projects/i70floydhill/earlyprojects. | 
| (unincorporated),
                CO Jefferson Co. United States | US 40 / CR 65 / I-70 WB Exit Ramp (39.71621, -105.39166) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Single-Lane | 2024 | Year Completed estimated (2023-2024). https://www.codot.gov/projects/i70floydhill/earlyprojects. | 
| Marion,
                OH Marion Co. United States | SR 98 (Columbus-Sandusky Rd. S) / SR 529 (Marion-Cardington Rd. E) (40.54939, -83.05017) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2023 | Year Completed estimated (2021-2024). | 
| Flagstaff,
                AZ Coconino Co. United States | S Beulah Blvd. / W University Ave. / W University Dr. (35.18368, -111.66341) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2025 | https://www.beulahuniversityproject.com/ | 
| Macon,
                GA Bibb Co. United States | N Pierce Ave. / N Pierce Cir. (32.87326, -83.65562) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2015 | Year Completed estimated (2013-2015). | 
| Napa,
                CA Napa Co. United States | RiverSound Way / Kaiser Rd. (38.25745, -122.27725) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2024 | |
| Whitestown,
                IN Boone Co. United States | S Perry Worth Rd. / Sunset Way (39.95375, -86.36091) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | |
| (unincorporated),
                TX Fort Bend Co. United States | Bissonnet St. / Trillium Glade Dr. (29.67321, -95.70169) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2025 | |
| (uninc),
                GA Paulding Co. United States | Ridge Rd. / Bob Hunton Rd. / Cohran Store Rd. (33.80461, -84.84089) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2022 | Year Completed estimated (2019-2022). | 
| (unincorporated),
                GA Newton Co. United States | GA 212 / GA 162 (33.46482, -83.90782) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2025 | https://www.youtube.com/watch?v=tNxG06uRLL4 | 
| Fayetteville,
                GA Fayette Co. United States | GA 92 / Seay Rd. / Harp Rd. (33.40417, -84.44370) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 65.5317 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2022 | Yield-controlled right-turn bypass lane on southwest leg. Irregular oval shaped. ICD = 215 ft x 165 ft. Combined two T-intersections. Year Completed estimated (2021-2022). | 
| Fayetteville,
                GA Fayette Co. United States | GA 92 / Antioch Rd. / Lockwood Rd. (33.40156, -84.44190) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.2440 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2022 | Combined two offset T-intersections. Year Completed estimated (2021-2022). | 
| Peachtree City,
                GA Fayette Co. United States | Redwine Rd. / S Peachtree Pkwy. / Bernhard Rd. (33.36796, -84.52043) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | https://thecitizen.com/2024/08/26/fayette-county-celebrates-multi-use-path-roundabout-completion/ | 
| Rogers,
                AR Benton Co. United States | S Pinnacle Hills Pkwy. / W JB Hunt Dr. (36.30245, -94.18936) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.0040 | Other (At-Grade) Single-Lane | 2023 | Yield-controlled right-turn bypass lanes on north and south legs. https://www.youtube.com/watch?v=fxI71JbGsVk | 
| Rogers,
                AR Benton Co. United States | S Pinnacle Hills Pkwy. / S Champions Dr. (36.30103, -94.18902) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2023 | https://www.youtube.com/watch?v=fxI71JbGsVk | 
| Rogers,
                AR Benton Co. United States | S Promenade Blvd. / W Oak St. (36.32767, -94.17844) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2024 | https://www.youtube.com/watch?v=GlgAq7Dsqgo | 
| Rogers,
                AR Benton Co. United States | W Oak St. / S 45th St. (36.32768, -94.17973) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4320 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2024 | https://www.youtube.com/watch?v=GlgAq7Dsqgo. | 
| Rogers,
                AR Benton Co. United States | S Champions Dr. / W Walsh Ln. / Green Acres Rd. (36.30960, -94.18918) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 18.2880 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2022 | https://www.nwahomepage.com/northwest-arkansas-news/new-roundabout-going-into-rogers/ | 
| Rogers,
                AR Benton Co. United States | S Champions Dr. / Pauline Whitaker Pkwy. (36.29744, -94.18948) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2024 | Oval shaped. ICD = 125 ft x 95 ft. https://www.5newsonline.com/article/news/local/improvements-street-intersections-rogers/527-453accd1-e729-4429-a299-adf651d31f61 | 
| Rogers,
                AR Benton Co. United States | S Rife Medical Ln. / W Northgate Rd. / (parking) (36.30603, -94.18317) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4320 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2023 | Serves Mercy Hospital Northwest Arkansas. Merging right-turn bypass lane on southwest leg. https://www.youtube.com/watch?v=slv12WuciNU | 
| Rogers,
                AR Benton Co. United States | S Bellview Rd. / S JB Hunt Dr. / S 28th Pl. (36.29465, -94.17170) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2024 | https://www.rogersar.gov/CivicSend/ViewMessage/message/209522 | 
| Rogers,
                AR Benton Co. United States | W Pleasant Grove Rd. / S Rainbow Rd. / Southgate Estates Cir. (36.29174, -94.20767) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 57.9120 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2022 | https://www.facebook.com/CraftonTullPage/videos/pleasant-grove-road-roundabout/1459630811196234/ | 
| Rogers,
                AR Benton Co. United States | W Pleasant Grove Rd. / S Rainbow Rd. (36.29171, -94.21214) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 57.9120 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2022 | Yield-controlled right-turn bypass lane on north leg. | 
| Rogers,
                AR Benton Co. United States | Garrett Rd. / Mount Hebron Rd. (36.27365, -94.19467) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2022 | https://www.rogersar.gov/CivicAlerts.aspx?AID=209&ARC=424 | 
| Bentonville,
                AR Benton Co. United States | Watertower Rd. / SE 8th St. (36.36477, -94.17059) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 60.9600 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2023 | Year Completed estimated (2022-2023). | 
| Rogers,
                AR Benton Co. United States | S Pinnacle Hills Pkwy. / Northgate Rd. (36.30461, -94.18796) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.0040 | Other (At-Grade) Single-Lane | 2024 | |
| Springdale,
                AR Washington Co. United States | S 64th St. / Apple Rd. (36.16841, -94.20162) | Roundabout Existing | All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) | 3 Approaches 0 Driveways 64.0080 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2022 | RRFB on all three legs. | 
| McKinney,
                TX Collin Co. United States | E Louisiana St. / Greenville Rd. (33.19718, -96.60968) | Roundabout Existing | All-Way Yield None | 3 Approaches 2 Driveways 33.5277 | Other (At-Grade) Single-Lane | 2024 | One of the driveways serves as emergency access only. | 
| Brodheadsville,
                PA Monroe Co. United States | US 209 / Pleasant Valley Ln. (40.92167, -75.40245) | Roundabout Existing | All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2024 | RRFB on all legs. | 
| Brodheadsville,
                PA Monroe Co. United States | US 209 / SR 115 / Rodenbach Ln. (40.92314, -75.39917) | Roundabout Existing | All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2024 | |
| Valdosta,
                GA Lowndes Co. United States | SR 31 (Madison Hwy.) / I-75 NB Ramps (30.75206, -83.27321) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Unknown | 2025 | https://valdostatoday.com/news-2/local/2025/02/lowndes-i75-exit-11-traffic-to-begin-using-roundabouts/ | 
| Valdosta,
                GA Lowndes Co. United States | SR 31 (Madison Hwy.) / I-75 SB Ramps (30.75023, -83.27416) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Unknown | 2025 | https://valdostatoday.com/news-2/local/2025/02/lowndes-i75-exit-11-traffic-to-begin-using-roundabouts/ | 
| Lake Park,
                GA Lowndes Co. United States | Lake Park Bellville Rd. / I-75 NB Ramps (30.64409, -83.18847) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Unknown | 2022 | https://wfxl.com/news/local/traffic-pattern-change-expected-in-lowndes-county-on-i-75-exit-2 | 
| Lake Park,
                GA Lowndes Co. United States | Lake Park Bellville Rd. / I-75 SB Ramps (30.64297, -83.18993) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Freeway Ramps (Grade-Separated) Single-Lane | 2022 | https://wfxl.com/news/local/traffic-pattern-change-expected-in-lowndes-county-on-i-75-exit-2 | 
| Bowling Green,
                KY Warren Co. United States | Frist Blvd. / Hub Blvd. (36.96968, -86.40929) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2019 | |
| Bowling Green,
                KY Warren Co. United States | Ken Bale Blvd. / Middle Bridge Rd. W (36.95185, -86.41547) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2022 | |
| Kennewick,
                WA Benton Co. United States | W Deschutes Ave. / N Colorado St. (46.21261, -119.22344) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2024 | https://www.youtube.com/watch?v=FWq2ItERef0 (view of roundabout at 1:14 in video) | 
| Hemel Hempstead,
                England Herts United Kingdom | A4251 (London Rd.) / A4146 (Station Rd.) (51.74301, -0.48452) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | A4251 (London Rd.) / Fishery Rd. (51.74305, -0.49149) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 1 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | A4251 (London Rd.) / A41 EB Ramps (51.74489, -0.51312) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | A414 (Two Waters Way) / A41 EB Ramps (51.73648, -0.47996) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | Raindrop shaped. | |
| Hemel Hempstead,
                England Herts United Kingdom | A414 (Two Waters Way) / A41 WB Ramps (51.73616, -0.48168) | Roundabout Existing | All-Way Yield Unknown | 2 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | Raindrop shaped. | |
| Hemel Hempstead,
                England Herts United Kingdom | A414 (Saint Albans Rd.) / Jarman Way (51.74980, -0.45562) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, 2x2 max) | Through bypass lane on west leg. | |
| Hemel Hempstead,
                England Herts United Kingdom | A414 (Saint Albans Rd.) / White Hart Rd. / Bennetts End Rd. (51.74958, -0.45123) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (3+ Lane) | Left-turn-only lane on east and west legs. | |
| Hemel Hempstead,
                England Herts United Kingdom | A414 (Saint Albans Rd. / Breakspear Way) / A4147 (Leverstock Green Way / Maylands Ave.) (51.75379, -0.43624) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (3+ Lane) | Left-turn add-lane bypass lanes on north and south legs. Left-turn-only lanes on east and west legs. | |
| Hemel Hempstead,
                England Herts United Kingdom | A414 (Breakspear Way) / Green Ln. (51.75630, -0.42355) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (3+ Lane) | ||
| Hemel Hempstead,
                England Herts United Kingdom | Green Ln. / Boundary Way (51.76027, -0.42309) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | Boundary Way / Buncefield Ln. / (parking) (51.76062, -0.42889) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | Green Ln. / Cherry Tree Ln. / Hogg End Ln. (51.76618, -0.42265) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Hemel Hempstead,
                England Herts United Kingdom | A4147 (Swallowdale Ln. / Maylands Ave.) / Swallowdale Ln. / Eastman Way (51.76690, -0.44389) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | A4147 (Redbourn Rd. / Swallowdale Ln.) / High Street Green / Queensway (51.76548, -0.44808) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | Left-turn bypass lanes on west and south legs. | |
| Hemel Hempstead,
                England Herts United Kingdom | A4147 (Link Rd. / Redbourn Rd.) / B487 (Redbourn Rd.) / Saint Agnells Ln. (51.77084, -0.44894) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | A4147 (Link Rd.) / Cambrian Way / Aycliffe Dr. (51.76921, -0.45691) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | A4147 (Link Rd.) / Piccotts End Rd. (51.76574, -0.47503) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | A4146 (Leighton Buzzard Rd.) / A4147 (Link Rd.) / B440 (Leighton Buzzard Rd.) / Galley Hill (51.76563, -0.47949) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | A4146 (Leighton Buzzard Rd.) / Queensway / Warners End Rd. (51.75713, -0.47560) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, 2x2 max) | Left-turn-only lanes on all legs. | |
| Hemel Hempstead,
                England Herts United Kingdom | Queensway / Marlowes (51.75735, -0.47277) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | Leighton Buzzard Rd. / Combe St. (51.75370, -0.47514) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | A4251 (London Rd.) / A41 WB Ramps (51.74372, -0.51106) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | ||
| Hemel Hempstead,
                England Herts United Kingdom | (Breakspear Park entrance) / (parking) (51.75549, -0.42416) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-lane w/ Traversable Central Island | ||
| Noblesville,
                IN Hamilton Co. United States | Innovation Blvd. / E 141st St. / Batterson Dr. (39.99487, -85.91033) | Roundabout Unknown | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2025 | Eastern entrance to Noblesville Event Center. | 
| St John’s,
                NL Division 1 Canada | Major's Path / Hebron Way (47.60946, -52.72877) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 45.0000 | Other (At-Grade) Single-Lane | 2020 | |
| Cape Breton,
                NS Cape Breton Canada | Churchill Dr. / Bradley St. (46.11094, -60.18439) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.0000 | Other (At-Grade) Single-Lane | 2014 | Year Completed estimated (2014-2015). | 
| Cape Breton,
                NS Cape Breton Canada | Rte 4 (Kings Rd.) / Kenwood Dr. / Rose St. (46.11226, -60.21703) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2025 | https://www.saltwire.com/cape-breton/in-photo-new-cape-breton-roundabout-in-sydney-river-fully-open-to-motorists | 
| Truro,
                NS Colchester Canada | Rte 2 (Willow St.) / McClures Mill Rd. (45.35399, -63.29396) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2024 | https://www.saltwire.com/nova-scotia/truro/truro-drivers-still-working-on-roundabout-learning-curve | 
| Quispamsis,
                NB Kings Canada | Rte 119 (Gondola Point Arterial Rd.) / Squire Dr. / Alma Ln. (45.43489, -65.96308) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 44.0000 | Other (At-Grade) Single-Lane | 2020 | https://www.facebook.com/townofquispamsis/posts/the-roundabout-on-the-gondola-point-arterial-is-open-if-youre-unfamiliar-with-ro/3288441517950142/ | 
| Atlanta,
                GA DeKalb Co. United States | Maynard Terrace SE / McPherson Ave. / I-20 EB Exit Ramp (33.74396, -84.33482) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max) | 2025 | |
| Plain City,
                OH Union Co. United States | Hyland-Croy Rd. / Ravenhill Pkwy. (40.18345, -83.19046) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2016 | Year Completed estimated (2015-2016). |