| 
                City, 
                State County Country  | 
            
                Intersection (Lat, Lng)  | 
            
                Type Status  | 
            Control Type / Other Control Type | Approaches / Driveways / ICD (m) | 
                Functional Class /  LaneType  | 
            Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| 
                Billings,
                MT Yellowstone Co. United States  | 
            
                Central Ave. / 56th St. W (45.76970, -108.65917)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.mdt.mt.gov/pubinvolve/56thRoundabouts/ | 
| 
                Helena,
                MT Lewis and Clark Co. United States  | 
            
                Lincoln Rd. / N Montana Ave. (46.70444, -112.02096)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.ktvh.com/news/lincoln-road-roundabout-opens-to-drivers | 
| 
                Woodbourne-Hyde Park,
                OH Montgomery Co. United States  | 
            
                Mad River Rd. / W Alex Bell Rd. (39.65510, -84.19420)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.whio.com/news/local/washington-twp-roundabout-set-open-within-next-week/JEWIGLMTEBBDXJ3PZ2QO3ILVQ4/ | 
| 
                Enoch,
                UT Iron Co. United States  | 
            
                SR 130 (N Minersville Hwy.)  / E Midvalley Rd. (37.76474, -113.05532)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Completed November 2021. | 
| 
                Olney,
                MD Montgomery Co. United States  | 
            
                Martins Dairy Cir. / Old Baltimore Rd. (39.13345, -77.07382)  | 
            
                Other Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            Painted splitter islands. | |
| 
                Wheaton,
                MD Montgomery Co. United States  | 
            
                Park Vista Dr. / Wintergate Dr. / Longmeade Crossing Dr. (39.10755, -77.05340)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | Painted splitter islands added 2020. | 
| 
                West End,
                MT Yellowstone Co. United States  | 
            
                Central Ave. / S 38th St. W (45.76969, -108.61240)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)  | 
            
                4 Approaches 0 Driveways 47.2440  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2019 | |
| 
                West End,
                MT Yellowstone Co. United States  | 
            
                Central Ave. / S 36th St. W (45.76949, -108.60726)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)  | 
            
                4 Approaches 0 Driveways 47.2440  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2019 | |
| 
                Maple Ash,
                AZ Maricopa Co. United States  | 
            
                W 9th St. / S Maple Ave. (33.42046, -111.94122)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            ||
| 
                Maple Ash,
                AZ Maricopa Co. United States  | 
            
                W 11th St. / S Maple Ave. (33.41763, -111.94123)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            ||
| 
                Maple Ash,
                AZ Maricopa Co. United States  | 
            
                W 12th St. / S Maple Ave. (33.41619, -111.94121)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            ||
| 
                Carmel,
                IN Hamilton Co. United States  | 
            
                E 116th St. / S Rangeline Rd. / Westfield Blvd. (39.95661, -86.12675)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2022 | Opened August 22, 2022. http://carmellink.com/project.php?title=116th%20Street%20and%20Range%20Line%20Road%20Roundabout | 
| 
                Marion,
                IA Linn Co. United States  | 
            
                County Home Rd. / C Ave. Extension (42.09487, -91.64848)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | https://cbs2iowa.com/news/local/county-home-road-reopens-in-linn-county-after-improvement-project | 
| 
                Marion,
                IA Linn Co. United States  | 
            
                County Home Rd. / Alburnett Rd. (42.09450, -91.61904)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | Year Completed estimated (2019-2020). | 
| 
                Marion,
                IA Linn Co. United States  | 
            
                10th St. / 10th Ave. / Central Ave. (42.03629, -91.59934)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-lane w/ Traversable Central Island  |   
            2021 | https://www.cityofmarion.org/Home/Components/News/News/6547/ | 
| 
                Rockford,
                IL Winnebago Co. United States  | 
            
                Lyford Rd. / (medical center entrance) (42.31307, -88.95526)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 60.9600  | 
            
                Other (At-Grade) Single-Lane  |   
            2018 | Yielding right-turn bypass lanes on south and east legs. Year Completed estimated (2018-2019). | 
| 
                Anacortes,
                WA Skagit Co. United States  | 
            
                32nd St. / M Ave. (48.49641, -122.61753)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.goskagit.com/anacortes/news/federally-funded-roundabout-opens-at-32nd-and-m-in-anacortes/article_481122ae-2328-11ed-bc4e-6bf692cd6133.html | 
| 
                Mansfield,
                OH Richland Co. United States  | 
            
                Mansfield-Lucas Rd. / Illinois Ave. / E Cook Rd. (40.73380, -82.48583)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | Opened August 11, 2022. https://www.richlandsource.com/business/community_development/roundabout-at-cook-illinois-mansfield-lucas-to-be-opened-thursday-at-10-a-m/article_1ff0124e-18e7-11ed-aa9f-0f857334eaa6.html | 
| 
                Elmsford,
                NY Westchester Co. United States  | 
            
                Old Saw Mill River Rd. / Grasslands Rd. (41.07631, -73.81875)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 47.2440  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2021 | |
| 
                Hammond,
                IN Lake Co. United States  | 
            
                E Gostlin St. / Sheffield Ave. (41.63211, -87.51847)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Year Completed estimated (2021-2022). | 
| 
                Gum Spring,
                VA Louisa Co. United States  | 
            
                US 250 (Broad Street Rd.) / US 522 (Cross Country Rd.) (37.77548, -77.89690)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | |
| 
                Oljato-Monument Valley,
                UT San Juan Co. United States  | 
            
                US 163 / Monument Valley Rd. (37.00424, -110.17341)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2019 | https://www.nhonews.com/news/2018/jun/19/oljato-community-breaks-ground-roundabout-road-nav/ | 
| 
                Red Deer County,
                AB Division 8 Canada  | 
            
                AB Hwy 2A / Airport Dr. / Township Road 372 (52.17205, -113.86197)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2021 | https://www.reddeeradvocate.com/news/red-deer-county-roundabouts-completed/ | 
| 
                Red Deer County,
                AB Division 8 Canada  | 
            
                Laura Ave/Liberty Ave (52.21374, -113.82382)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2017 | |
| 
                Pullman,
                WA Whitman Co. United States  | 
            
                SR 27 / Whelan Rd. (46.75994, -117.16896)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 32.0037  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | Opened August 2022. Developer mitigation project. | 
| 
                Poplar,
                MT Roosevelt Co. United States  | 
            
                US 2 / 13th Ave. E (48.11433, -105.17243)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2019 | https://www.roundupweb.com/story/2019/12/04/news/us-2-poplar-construction-winds-down/13182.html | 
| 
                Albemarle,
                NC Stanly Co. United States  | 
            
                Ridge St. / Carter Acres Rd. (35.40272, -80.15689)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Year Completed estimated (2019-2022). | 
| 
                Albemarle,
                NC Stanly Co. United States  | 
            
                Ridge St. / Mountain View Church Rd. (35.39623, -80.15732)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | Year Completed estimated (2019-2022). | 
| 
                Blackshear,
                GA Pierce Co. United States  | 
            
                County Farm Rd. / Alabama Woods Dr. (31.34834, -82.22002)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2019 | Year Completed estimated (2017-2022). | 
| 
                Bowling Green,
                KY Warren Co. United States  | 
            
                Parkside Ct. / Cove Dr. (36.99073, -86.47131)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 22.8600  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | Year Completed estimated (2018-2022). | 
| 
                Bowling Green,
                KY Warren Co. United States  | 
            
                N Sunrise Dr. / Cove Dr. / Woodway St. (36.99346, -86.47154)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 22.8600  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | Year Completed estimated (2018-2022). | 
| 
                China,
                MI St. Clair Co. United States  | 
            
                Fred W Moore Hwy. / Wadhams Rd. (42.81537, -82.55479)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Year Completed estimated (2019-2022). | 
| 
                Columbus,
                MS Lowndes Co. United States  | 
            
                Military Rd. / US 82 EB Ramps (33.51801, -88.41368)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2020 | https://cdispatch.com/news/2020-11-19/military-road-roundabout-project-to-reach-completion-by-end-of-november/ | 
| 
                Columbus,
                MS Lowndes Co. United States  | 
            
                Military Rd. / US 82 WB Ramps (33.51915, -88.41193)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2020 | https://cdispatch.com/news/2020-11-19/military-road-roundabout-project-to-reach-completion-by-end-of-november/ | 
| 
                Dahlonega,
                GA Lumpkin Co. United States  | 
            
                GA 9 (Dawsonville Hwy.) / GA 52 (34.52029, -84.04569)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | |
| 
                Fond du Lac,
                WI Fond Du Lac Co. United States  | 
            
                Fond du Lac Ave. / Rienzi Rd. / National Ave. (43.76212, -88.42196)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 41.1480  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Combined two T-intersections. Year Completed estimated (2020-2021). | 
| 
                Hoschton,
                GA Barrow Co. United States  | 
            
                GA 211 / Old Hog Mountain Rd. / Covered Bridge Rd. (34.06993, -83.78637)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | |
| 
                Laurel,
                MS Jones Co. United States  | 
            
                Sawmill Rd. / Sixth Ave. / Central Ave. (31.69357, -89.13285)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2022 | Central Ave is one-way exiting roundabout. http://laurelmainstreet.com/tag/roundabout/ | 
| 
                James City,
                NC Craven Co. United States  | 
            
                Terminal Dr. / Airline Dr. / (parking) (35.07889, -77.03292)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                2 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Only 2 approaches but 4 exits. Year Completed estimated (2019-2022). | 
| 
                Red Deer,
                AB Division 8 Canada  | 
            
                Signet Close / Seneca Dr. (52.23689, -113.82224)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 40.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2017 | Year Completed estimated (2016-2017). | 
| 
                Thief River Falls,
                MN Pennington Co. United States  | 
            
                STH 32 / CSAH 16 (Mark Blvd. - 125th Ave. NE) (48.09335, -96.19746)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 48.7680  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | |
| 
                Troy,
                AL Pike Co. United States  | 
            
                University Ave. / Luther Dr. (Veterans Memorial Dr.) (31.79810, -85.95395)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Year Completed estimated (2019-2022). | 
| 
                Watertown,
                NY Jefferson Co. United States  | 
            
                Gaffney Dr. / Commerce Park Dr. / Western Blvd. (43.98164, -75.94248)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 41.1480  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | |
| 
                Willmar,
                MN Kandiyohi Co. United States  | 
            
                US 12 / 30th St. SW (CR 5) (45.12227, -95.08369)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Year Completed estimated (2019-2021). https://www.dot.state.mn.us/d8/projects/willmarwye/index.html | 
| 
                Willmar,
                MN Kandiyohi Co. United States  | 
            
                US 12 / (unknown) (45.12091, -95.09405)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Year Completed estimated (2019-2021). https://www.dot.state.mn.us/d8/projects/willmarwye/index.html | 
| 
                Kristianstad,
                Skåne County Kristianstad Sweden  | 
            
                Fredriksdalsvägen / Arkelstorpsvägen (56.06148, 14.16988)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways  | 
            
                Other (At-Grade) Single-Lane  |   
            ||
| 
                Vancouver,
                WA Clark Co. United States  | 
            
                SR 500 (NE Fourth Plain Rd.) / NE182nd Ave. (45.67192, -122.48864)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 26.8221  | 
            
                Other (At-Grade) Single-lane w/ Traversable Central Island  |   
            2022 | Compact roundabout. WSDOT project. Completed August 20, 2022. Colored apron with asphalt interior. | 
| 
                Mantua,
                OH Portage Co. United States  | 
            
                SR 82 / Chamberlain Rd. (41.30863, -81.28112)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.record-courier.com/story/news/2022/07/30/mantua-roundabout-finally-open-odot-says-improve-safety/10173568002/ | 
| 
                Castle Rock,
                CO Douglas Co. United States  | 
            
                Plum Creek Pkwy. / S Eaton Cir. / Eaton St. (39.36073, -104.83311)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.1960  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2020 | Elliptical shaped. ICD = 145 ft x 115 ft. Year Completed estimated (2020-2021). | 
| 
                Castle Rock,
                CO Douglas Co. United States  | 
            
                S Ridge Rd. / Rapport Dr. (39.35511, -104.81475)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 32.0040  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | |
| 
                Castle Rock,
                CO Douglas Co. United States  | 
            
                Autumn Sage St. / Valley View Dr. (39.38026, -104.81919)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 62.4840  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | Year Completed estimated (2015-2017). | 
| 
                Castle Rock,
                CO Douglas Co. United States  | 
            
                N Rocky View Rd. / Valley View Rd. / High Point Rd. (39.38189, -104.81125)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 62.4840  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | Year Completed estimated (2015-2017). | 
| 
                Castle Pines,
                CO Douglas Co. United States  | 
            
                Westbridge Dr. / Cross Canyon Trl. (39.45951, -104.85287)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 50.2920  | 
            
                Other (At-Grade) Single-Lane  |   
            2019 | Year Completed estimated (2018-2019). | 
| 
                Parker,
                CO Douglas Co. United States  | 
            
                Cross Canyon Trl. / Canyon Forge Dr. (39.47008, -104.85988)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 51.8160  | 
            
                Other (At-Grade) Single-Lane  |   
            2018 | Year Completed estimated (2018-2019). | 
| 
                Marriottsville,
                MD Howard Co. United States  | 
            
                Sand Hill Rd. / Sand Hill Manor Dr. / Mount View Rd. (39.31018, -76.93043)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 28.9560  | 
            
                Other (At-Grade) Single-Lane  |   
            1998 | Year Completed estimated (1993-2002). | 
| 
                Frederick,
                MD Frederick Co. United States  | 
            
                Jefferson Station Blvd. / Jefferson Commons Way (39.39479, -77.44916)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2015 | Year Completed estimated (2013-2015). | 
| 
                Winona,
                MN Winona Co. United States  | 
            
                US 14-US 61 / STH 43 (44.02956, -91.62216)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2022 | https://www.youtube.com/watch?v=xA9c17OwsGk | 
| 
                Gaithersburg,
                MD Montgomery Co. United States  | 
            
                Perry Pkwy. / (parking) (39.14899, -77.21048)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 47.2440  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2004 | Year Completed estimated (2002-2005). | 
| 
                Potomac,
                MD Montgomery Co. United States  | 
            
                Broad Green Dr. / Clagett Farm Dr. (39.04566, -77.19669)  | 
            
                Other Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            ||
| 
                Paeonian Springs,
                VA Loudoun Co. United States  | 
            
                Charles Town Pike / SR 7 WB Ramps (39.14190, -77.61205)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 53.3400  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)  |   
            2015 | Year Completed estimated (2014-2016). | 
| 
                Marana,
                AZ Pima Co. United States  | 
            
                N Sandario Rd. / W Twin Peaks Rd. (32.38076, -111.21671)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.maranaaz.gov/news/2022/5/25/traffic-alert-construction-on-a-new-roundabout-located-at-the-twin-peaks-and-sandario-road-intersection | 
| 
                Carpinteria,
                CA Santa Barbara Co. United States  | 
            
                Ogan Rd. / Via Real / US 101 NB On-Ramp (34.40144, -119.51551)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 38.1000  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2020 | https://www.coastalview.com/news/roadways-open-with-improvements/article_979e3586-c6f1-11ea-bc84-b3d50932177b.html | 
| 
                Lima,
                OH Allen Co. United States  | 
            
                Market St. / Main St. (40.73998, -84.10498)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.hometownstations.com/news/more-downtown-parking-being-added-now-that-roundabout-in-limas-town-square-is-open/article_b354ae8e-085a-11ed-8496-e7e7595f316f.html [Note: previous intersection looked somewhat like a roundabout. Not quite round and it had stop signs on the N-S approaches and only pedestrian stop lights on E-W approaches.] | 
| 
                Baton Rouge,
                LA East Baton Rouge Par. United States  | 
            
                Stumberg Ln. / Womans Way (30.38264, -91.03593)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 59.4360  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2012 | Year Completed estimated (2011-2013). | 
| 
                Port Vincent,
                LA Livingston Par. United States  | 
            
                LA 16 (Petes Hwy.) / LA 447 (Walker South Rd.) (30.35577, -90.84991)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 39.6240  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | |
| 
                Baton Rouge,
                LA East Baton Rouge Par. United States  | 
            
                N Stadium Rd. / Field House Dr. (30.41398, -91.18246)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | On campus of Louisiana State University. | 
| 
                Baton Rouge,
                LA East Baton Rouge Par. United States  | 
            
                Capitol Access Rd. / Capitol Lake Dr. (30.45808, -91.18278)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 38.1000  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | |
| 
                Baton Rouge,
                LA East Baton Rouge Par. United States  | 
            
                Capitol Lake Rd. / Capitol Access Rd. (30.45818, -91.18621)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 38.1000  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | |
| 
                Cheyenne,
                WY Laramie Co. United States  | 
            
                (unknown) / (parking) (41.10110, -104.78426)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 51.8160  | 
            
                Other (At-Grade) Single-Lane  |   
            2019 | Year Completed estimated (2019-2021). | 
| 
                Cheyenne,
                WY Laramie Co. United States  | 
            
                (unknown) / (parking) (41.10103, -104.78019)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 51.8160  | 
            
                Other (At-Grade) Single-Lane  |   
            2019 | Year Completed estimated (2019-2021). | 
| 
                Vestal,
                NY Broome Co. United States  | 
            
                Glenn G Bartle Dr. / West Dr. (42.09200, -75.96836)  | 
            
                Other Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            Concentric striped circulatory roadway. | |
| 
                Lincoln,
                NE Lancaster Co. United States  | 
            
                W A St. / S Folsom St. (40.79911, -96.73022)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-lane w/ Traversable Central Island  |   
            2022 | https://www.lincoln.ne.gov/City/Departments/LTU/LTU-Projects/Projects/West-A-Street-Improvement-Project (video shows the roundabout at about 1:45) | 
| 
                Princeton,
                NJ Mercer Co. United States  | 
            
                Rosedale Rd. / General Johnson Dr. (40.34571, -74.68801)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-lane w/ Traversable Central Island  |   
            2022 | https://planetprinceton.com/2022/08/25/rosedale-road-roundabout-project-now-complete/ | 
| 
                Farmville,
                VA Prince Edward Co. United States  | 
            
                Farmville Rd. / Kingsville Rd. (37.24605, -78.44392)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | Opened August 17, 2022. https://www.farmvilleherald.com/2022/08/kingsville-roundabout-finally-open/ | 
| 
                Niagara Falls,
                ON Niagara Canada  | 
            
                Victoria Ave. / Bridge St. / Thorold Stone Rd. (43.10884, -79.07338)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                5 Approaches 0 Driveways 64.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.youtube.com/watch?v=PJwDZ6g8cT0 | 
| 
                St Joseph,
                MO Buchanan Co. United States  | 
            
                Robidoux St. / 8th St. (39.76984, -94.85063)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 24.3840  | 
            
                Other (At-Grade) Single-Lane  |   
            2015 | Year Completed estimated (2014-2015). https://www.newspressnow.com/opinion/editorials/progress-in-a-roundabout-way/article_3dba548e-dbbf-11ec-9a02-6faad919c23d.html | 
| 
                Inspiration,
                CO Douglas Co. United States  | 
            
                Gartrell Rd. / E Rocky Top Ave. (39.55491, -104.70847)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 27.4320  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | Year Completed estimated (2019-2021). | 
| 
                The Farm,
                CO El Paso Co. United States  | 
            
                Ent Pkwy. / Federal Dr. (38.99879, -104.81095)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Year Completed estimated (2020-2022). | 
| 
                Interquest,
                CO El Paso Co. United States  | 
            
                United Heights / (unknown) (38.98973, -104.80083)  | 
            
                Other Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 24.3840  | 
            
                Other (At-Grade) Single-Lane  |   
            No splitter islands on north and south legs. | |
| 
                Deerfield Hills,
                CO El Paso Co. United States  | 
            
                Drennan Rd. / Post Oak Dr. (38.78168, -104.74115)  | 
            
                Other Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            No splitter islands; only diverging yellow lines. | |
| 
                Deerfield Hills,
                CO El Paso Co. United States  | 
            
                Drennan Rd. / Monica Dr. W (38.78171, -104.74739)  | 
            
                Other Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            No splitter islands; only diverging yellow lines. | |
| 
                Deerfield Hills,
                CO El Paso Co. United States  | 
            
                Drennan Rd. / Springnite Dr. (38.78171, -104.75088)  | 
            
                Other Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            No splitter islands; only diverging yellow lines. | |
| 
                McCalla,
                AL Jefferson Co. United States  | 
            
                Old Tuscaloosa Hwy. / McAdory School Rd. (33.33566, -87.01218)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 39.6240  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.youtube.com/watch?v=GS7xX-8KUkc | 
| 
                Calgary,
                AB Division 6 Canada  | 
            
                Sarcee Trl. SW / Na'a Dr. SW / Trans-Canada Hwy EB Ramps (51.07800, -114.18891)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 55.0000  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)  |   
            2017 | |
| 
                Calgary,
                AB Division 6 Canada  | 
            
                Na'a Dr. SW / Na'a Plaza SW (51.07872, -114.19234)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 58.0000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2020 | |
| 
                Calgary,
                AB Division 6 Canada  | 
            
                34 Ave. NW / Sarcee Trl. NW (51.08368, -114.18893)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 42.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | |
| 
                Calgary,
                AB Division 6 Canada  | 
            
                West Valley Rd. SW / 101 St. SW / 1 Ave. SW / Trans-Canada Hwy EB On-Ramp (51.08514, -114.23423)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 50.0000  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2022 | |
| 
                Calgary,
                AB Division 6 Canada  | 
            
                Valley Ridge Blvd. NW / Trans Canada Hwy EB Ramps (51.08743, -114.24755)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 67.0000  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2022 | |
| 
                Celina,
                TX Collin Co. United States  | 
            
                Choate Pkwy. / Kinship Pkwy. (33.29258, -96.76976)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 60.9600  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2021 | Interim scenario - ultimate lane configuration striped out on initial build. | 
| 
                Celina,
                TX Collin Co. United States  | 
            
                Punk Carter Pkwy. / Kinship Pkwy. (33.28419, -96.76992)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 36.5760  | 
            
                Other (At-Grade) Single-Lane  |   
            2018 | |
| 
                Celina,
                TX Collin Co. United States  | 
            
                W Ownsby Pkwy. / Etta Terrace (33.27912, -96.78895)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 47.2440  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | |
| 
                Prosper,
                TX Collin Co. United States  | 
            
                Richland Blvd. / S Coleman St. (33.22432, -96.80275)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 53.3400  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2020 | |
| 
                McKinney,
                TX Collin Co. United States  | 
            
                Limousine Pkwy. / Rivercrest Dr. (33.24434, -96.65728)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 39.0144  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | |
| 
                Fulshear,
                TX Fort Bend Co. United States  | 
            
                Parkside Passage Dr. / Fulshear Trace (29.67645, -95.89920)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 33.5280  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | |
| 
                Fulshear,
                TX Fort Bend Co. United States  | 
            
                Texas Heritage Pkwy. / (unknown) (29.69670, -95.87960)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 51.8160  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2021 | |
| 
                Richmond,
                TX Fort Bend Co. United States  | 
            
                Texas Heritage Pkwy. / (unknown) (29.68788, -95.87474)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 48.7680  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2021 | |
| 
                Katy,
                TX Waller Co. United States  | 
            
                Pederson Rd. / (unknown) (29.77246, -95.88083)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 51.8160  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2021 | |
| 
                Blackhorse Ranch South,
                TX Harris Co. United States  | 
            
                Autumn Light Ln. / Winding Star Ln. (29.95095, -95.71406)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 39.6240  | 
            
                Unknown Single-Lane  |   
            2018 | Constructed as traffic circle around 2004 with no splitter island on south leg and unknown control. Painted splitter island on south leg added 2017-2019. | 
| 
                (unincorporated),
                SC Spartanburg Co. United States  | 
            
                SC 11 / Parris Bridge Rd. (35.15971, -81.91854)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | Year Completed estimated (2021-2022). https://www.wspa.com/news/roundabout-proposed-at-hwy-11-parris-bridge-road/ | 
| 
                Tulsa,
                OK Tulsa Co. United States  | 
            
                Sage Blvd. / (hospital entrance) / (parking) (36.03334, -95.85593)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 47.2440  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2010 | Oval shaped. ICD = 155 ft x 135 ft. |