| 
                City, 
                State County Country  | 
            
                Intersection (Lat, Lng)  | 
            
                Type Status  | 
            Control Type / Other Control Type | Approaches / Driveways / ICD (m) | 
                Functional Class /  LaneType  | 
            Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| 
                Frederick,
                CO Weld Co. United States  | 
            
                Aggregate Blvd. / Wyndham Hill Pkwy. (40.09242, -104.99890)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 54.8640  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | Right-turn-only lanes on north and south legs. Striped out portions of circulatory roadway. | 
| 
                Erie,
                CO Boulder Co. United States  | 
            
                Jasper Rd. / Lombard St. (40.05485, -105.06504)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 33.5280  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Year Completed estimated (2020-2021). | 
| 
                Broomfield,
                CO Broomfield Co. United States  | 
            
                W 169th Ave. / Palisade Pkwy. (40.00437, -104.99443)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.6720  | 
            
                Other (At-Grade) Single-Lane  |   
            2014 | |
| 
                Lafayette,
                CO Boulder Co. United States  | 
            
                Roser Dr. / Crater Lake Ln. / Murphy Creek Dr. (39.99879, -105.13387)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 36.5760  | 
            
                Other (At-Grade) Single-Lane  |   
            2009 | Year Completed estimated (2008-2010). | 
| 
                Louisville,
                CO Boulder Co. United States  | 
            
                Roser Dr. / W Hecla Dr. / Paschal Dr. (39.99411, -105.13074)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 33.5280  | 
            
                Other (At-Grade) Single-Lane  |   
            2011 | |
| 
                Louisville,
                CO Boulder Co. United States  | 
            
                E Hecla Dr. / Snowberry Ln. (39.99167, -105.12415)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2008 | Year Completed estimated (2007-2008). | 
| 
                Louisville,
                CO Boulder Co. United States  | 
            
                E Hecla Dr. / Golden Eagle Way / Rose Ct. (39.99337, -105.12375)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2008 | Year Completed estimated (2007-2008). | 
| 
                Thornton,
                CO Adams Co. United States  | 
            
                E 162nd Ave. / Grant St. / (parking) (39.98980, -104.98308)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 48.7680  | 
            
                Other (At-Grade) Single-Lane  |   
            2007 | |
| 
                Thornton,
                CO Adams Co. United States  | 
            
                E 163rd Ave. / Elizabeth St. (39.99121, -104.95523)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 33.5280  | 
            
                Other (At-Grade) Single-Lane  |   
            2017 | Year Completed estimated (2017-2018). | 
| 
                Brighton,
                CO Adams Co. United States  | 
            
                Longs Peak St. / N 46th Ave. (39.99462, -104.75972)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 33.5280  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | |
| 
                Brighton,
                CO Adams Co. United States  | 
            
                Longs Peak St. / Silo Ct. (39.99463, -104.75777)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 33.5280  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | Year Completed estimated (2021-2022). | 
| 
                Brighton,
                CO Adams Co. United States  | 
            
                Longs Peak St. / Baler Ct. (39.99464, -104.75476)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 33.5280  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | Year Completed estimated (2021-2022). | 
| 
                Brighton,
                CO Adams Co. United States  | 
            
                Longs Peak St. / Bowie Dr. / N 46th Ave. (39.99239, -104.75969)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 33.5280  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | 2022 or earlier (SV) | 
| 
                Brighton,
                CO Adams Co. United States  | 
            
                156th Ave. / 157th Ave. / Syracuse Way (39.97989, -104.89921)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.1000  | 
            
                Other (At-Grade) Single-Lane  |   
            2018 | Year Completed estimated (2018-2019). | 
| 
                Thornton,
                CO Adams Co. United States  | 
            
                Grant St. / E 146th Ave. / (parking) (39.96090, -104.98184)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 60.9600  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2018 | Year Completed estimated (2018-2019). | 
| 
                Thornton,
                CO Adams Co. United States  | 
            
                Grant St. / E 143rd Pl. (39.95485, -104.98191)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 60.9600  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2013 | Opened with north and west legs 2013. South and east legs added 2015. | 
| 
                Thornton,
                CO Adams Co. United States  | 
            
                Grant St. / E 141 Pl. (39.95214, -104.98286)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 60.9600  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2016 | West leg added 2022-2023. | 
| 
                Thornton,
                CO Adams Co. United States  | 
            
                Lincoln St. / E 141st Pl. / (parking) (39.95280, -104.98624)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | |
| 
                Thornton,
                CO Adams Co. United States  | 
            
                Grant St. / E 140th Ave. / (parking) (39.94932, -104.98311)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 62.4840  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2018 | Year Completed estimated (2018-2019). | 
| 
                Thornton,
                CO Adams Co. United States  | 
            
                Grant St. / (parking) (39.94597, -104.98307)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 60.9600  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2018 | Year Completed estimated (2018-2019). | 
| 
                Thornton,
                CO Adams Co. United States  | 
            
                Tamarac St. / E 129th Ave. / Tamarac Way (39.93026, -104.89660)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.1000  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | Year Completed estimated (2004-2005). | 
| 
                Thornton,
                CO Adams Co. United States  | 
            
                131st Ave. / Oneida St. (39.93268, -104.90764)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.1000  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | Year Completed estimated (2004-2005). | 
| 
                Thornton,
                CO Adams Co. United States  | 
            
                Holly Cir. / Jasmine St. (39.92580, -104.91863)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.1000  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | Year Completed estimated (2004-2005). | 
| 
                Henderson,
                CO Adams Co. United States  | 
            
                Henderson Rd. / E 124th Ave. / Park Blvd. (39.92505, -104.87550)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | Merging right-turn bypass lanes on north and east legs. https://adcogov.org/henderson-rd-park-blvd-roundabout-project | 
| 
                Brighton,
                CO Adams Co. United States  | 
            
                Southgate Blvd. / Gateway St. (39.91320, -104.83390)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.1000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2018 | Year Completed estimated (2018-2019). | 
| 
                Commerce City,
                CO Adams Co. United States  | 
            
                E 119th Ave. / Oakland St. / (unknown) (39.91279, -104.84949)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 28.9560  | 
            
                Other (At-Grade) Single-Lane  |   
            2004 | Year Completed estimated (2003-2004). East leg added 2008-2010. | 
| 
                Commerce City,
                CO Adams Co. United States  | 
            
                E 121st Ave. / Jasper St. (39.91627, -104.80425)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 36.5760  | 
            
                Other (At-Grade) Single-Lane  |   
            2003 | |
| 
                Arvada,
                CO Jefferson Co. United States  | 
            
                W 94th Ave. / Hallett St. (39.86650, -105.22434)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2014 | |
| 
                West Vancouver,
                BC Greater Vancouver Canada  | 
            
                Cross Creek Rd. / Chartwell Dr. (49.34530, -123.14714)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 30.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2012 | Year Completed estimated (2011-2013). | 
| 
                West Vancouver,
                BC Greater Vancouver Canada  | 
            
                Taylor Way / Southborough Dr. / Stevens Dr. (49.34101, -123.13479)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 40.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | Yield-controlled right-turn bypass lane on south leg. | 
| 
                Coquitlam,
                BC Greater Vancouver Canada  | 
            
                Soball St. / Gislason Ave. (49.28930, -122.75026)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2011 | Year Completed estimated (2009-2011). | 
| 
                Port Coquitlam,
                BC Greater Vancouver Canada  | 
            
                Fremont St. / Fremont Dr. / Hwy 7B (Loogheed Hwy.) Exit Ramp (49.24939, -122.73402)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 42.0000  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2010 | Raindrop shaped. Year Completed estimated (2008-2011). | 
| 
                Surrey,
                BC Greater Vancouver Canada  | 
            
                74 Ave. / 194A St. (49.13733, -122.68371)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 27.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2019 | |
| 
                Surrey,
                BC Greater Vancouver Canada  | 
            
                194A St. / 73 Ave. (49.13550, -122.68375)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 30.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2014 | |
| 
                Delta,
                BC Greater Vancouver Canada  | 
            
                Ferry Rd. / Admiral Way (49.11201, -123.07804)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 28.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | |
| 
                Delta,
                BC Greater Vancouver Canada  | 
            
                Ferry Rd. / Commodore Dr. (49.10577, -123.07907)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways  | 
            
                Other (At-Grade) Single-lane w/ Traversable Central Island  |   
            Painted splitter islands. | |
| 
                Chilliwack,
                BC Fraser Valley Canada  | 
            
                Columbia Valley Rd. / Sunnyside Blvd. / (parking) (49.07529, -121.97639)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 37.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2010 | Year Completed estimated (2009-2011). | 
| 
                Surrey,
                BC Greater Vancouver Canada  | 
            
                25 Ave. / 166 St. (49.04745, -122.76265)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 40.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | |
| 
                Surrey,
                BC Greater Vancouver Canada  | 
            
                3A Ave. / 172 St. (49.00848, -122.74635)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 30.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2012 | |
| 
                Gig Harbor,
                WA Pierce Co. United States  | 
            
                Olympus Way / Buckhorn Pl. / Copper Ct. (47.36278, -122.59679)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 24.3840  | 
            
                Other (At-Grade) Single-lane w/ Traversable Central Island  |   
            2014 | |
| 
                Enumclaw,
                WA King Co. United States  | 
            
                Semanski St. / Warner Ave. (47.19201, -122.00551)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 28.9560  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Next to Enumclaw High School. https://www.courierherald.com/news/council-awards-bid-for-roundabout-in-front-of-enumclaw-high/ | 
| 
                Tumwater,
                WA Thurston Co. United States  | 
            
                93rd Ave. SW / Lathrop Industrial Dr. (46.95285, -122.94231)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | Add-lane right-turn bypass lane on south leg. Year Completed estimated (2021-2022). | 
| 
                Fargo,
                ND Cass Co. United States  | 
            
                23rd Ave. S / 41st St. S (46.84327, -96.84778)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 51.8160  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2020 | Year Completed estimated (2018-2020). | 
| 
                Sisseton,
                SD Roberts Co. United States  | 
            
                SR 10 (W Hickory St. - 119th St.) / 8th Ave. W / BIA Hwy 700 (45.66001, -97.06128)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 39.6240  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | Year Completed estimated (2019-2020). | 
| 
                Anoka,
                MN Anoka Co. United States  | 
            
                Green Haven Rd. / Jacob Ln. / US 10-US 169 WB Ramps (45.20655, -93.40067)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2022 | Year Completed estimated (2022-2023). | 
| 
                Anoka,
                MN Anoka Co. United States  | 
            
                W Main St. / US 10-US 169 EB Ramps / Church St. (45.20504, -93.40072)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)  |   
            2022 | Year Completed estimated (2022-2023). | 
| 
                Westmere,
                NY Albany Co. United States  | 
            
                Crossgates Mall Rd. / Adirondack Northway Ramps (42.68736, -73.84561)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2023 | https://spectrumlocalnews.com/nys/capital-region/news/2023/03/23/roundabout-coming-to-crossgates-mall- | 
| 
                Macomb,
                MI Macomb Co. United States  | 
            
                25 Mile Rd. / Romeo Plank Rd. / Garfield Rd. (42.70077, -82.95901)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.6720  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2022 | Year Completed estimated (2021-2022). | 
| 
                Clarksville,
                TN Montgomery Co. United States  | 
            
                Henry Place Blvd. / Bandera Dr. (36.60740, -87.38149)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | |
| 
                Saukville,
                WI Ozaukee Co. United States  | 
            
                STH 33 / CTH I (43.39585, -87.97946)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.6717  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | |
| 
                Colgate,
                WI Waukesha Co. United States  | 
            
                CTH Q / Hillside Rd. (43.19319, -88.24181)  | 
            
                Roundabout Unknown  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.6717  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | |
| 
                Somers,
                WI Kenosha Co. United States  | 
            
                CTH Y / CTH A (42.65320, -87.83596)  | 
            
                Roundabout Unknown  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.6717  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | https://www.kenoshacounty.org/CivicAlerts.aspx?AID=2888 | 
| 
                Brown Deer,
                WI Milwaukee Co. United States  | 
            
                STH 57 / Teutonia Ave. (43.17202, -87.96338)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 48.7680  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2022 | |
| 
                Oconomowoc,
                WI Waukesha Co. United States  | 
            
                Pabst Rd. / Olympia Fields Dr. (43.08687, -88.47287)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 48.7680  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2022 | |
| 
                Bend,
                OR Deschutes Co. United States  | 
            
                US 20 / Cooley Rd. (44.10922, -121.31043)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2023 | Opened May 26, 2023 during construction as single-lane roundabout but designed to be a multilane roundabout. | 
| 
                Woodstock,
                GA Cherokee Co. United States  | 
            
                Wiley Bridge Rd. / Cox Rd. (34.09392, -84.43287)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | Year Completed estimated (2022-2023). | 
| 
                Langley,
                BC Greater Vancouver Canada  | 
            
                64 Ave. / 232 St. (49.11889, -122.58167)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 40.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | |
| 
                Nampa,
                ID Canyon Co. United States  | 
            
                N Franklin Blvd. / Birch Ln. (43.61231, -116.55315)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2023 | https://twitter.com/NampaPIO/status/1654208519175045120 | 
| 
                Nampa,
                ID Canyon Co. United States  | 
            
                E Victory Rd. / N Kings Rd. (43.57584, -116.53288)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 48.7680  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://twitter.com/NampaPIO/status/1606348916282101760 | 
| 
                Hobart,
                WI Brown Co. United States  | 
            
                CR VV (Marley St.) / STH 29 EB Ramps (44.57594, -88.17273)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2022 | https://wisconsindot.gov/Pages/projects/by-region/ne/wis29study/schedule.aspx | 
| 
                Hobart,
                WI Brown Co. United States  | 
            
                Marley St. / Triangle Dr. / Oneida Way (44.57460, -88.17586)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | North leg stubbed. https://wisconsindot.gov/Pages/projects/by-region/ne/wis29study/schedule.aspx | 
| 
                Howard,
                WI Brown Co. United States  | 
            
                CR VV (Marley St.) / STH 29 WB Ramps (44.57753, -88.17131)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2022 | https://wisconsindot.gov/Pages/projects/by-region/ne/wis29study/schedule.aspx | 
| 
                Hobart,
                WI Brown Co. United States  | 
            
                N Overland Rd. / Oneida Way / Centerline Dr. (44.57140, -88.16988)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 47.2440  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | |
| 
                Five Corners,
                WA Clark Co. United States  | 
            
                NE 94th Ave. / NE 99th St. (45.69343, -122.57575)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 39.6240  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | |
| 
                Marmaduke,
                AR Greene Co. United States  | 
            
                US 49 (S 3rd St.) / SR 34 (36.18693, -90.38488)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-lane w/ Traversable Central Island  |   
            2023 | Year Completed estimated (2022-2023). November 2022: https://www.youtube.com/watch?v=LurUNtZaU7w May 2023: https://www.youtube.com/watch?v=Kmntt4a_kvI | 
| 
                Burnsville,
                MN Dakota Co. United States  | 
            
                Cliff Rd. W / I-35W SB Ramps (44.78229, -93.29009)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 41.1480  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2022 | https://patch.com/minnesota/burnsville/construction-begins-i-35w-southbound-ramp-improvement-project | 
| 
                Columbia,
                MD Howard Co. United States  | 
            
                Tamar Dr. / Old Montgomery Rd. (39.20533, -76.82822)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.howardcountymd.gov/News090122c | 
| 
                (unincorporated),
                NC Robeson Co. United States  | 
            
                Leeper Rd. / I-295 SB Ramps (34.92075, -78.97889)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 39.6240  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2022 | https://abc11.com/nc-fayetteville-outer-loop-i295-new-sections-open/12478490/ | 
| 
                (unincorporated),
                NC Robeson Co. United States  | 
            
                Leeper Rd. / I-295 NB Ramps (34.92281, -78.97772)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 39.6240  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2022 | https://abc11.com/nc-fayetteville-outer-loop-i295-new-sections-open/12478490/ | 
| 
                (unincorporated),
                NC Cumberland Co. United States  | 
            
                Old Plank Rd. / I-295 SB Ramps (34.94793, -78.99697)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 39.6240  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2022 | Yield-controlled right-turn bypass lanes on north and west legs. https://abc11.com/nc-fayetteville-outer-loop-i295-new-sections-open/12478490/ | 
| 
                (unincorporated),
                NC Cumberland Co. United States  | 
            
                Old Plank Rd. / I-295 NB Ramps (34.94791, -78.99430)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 39.6240  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2022 | Yield-controlled right-turn bypass lanes on south and east legs. https://abc11.com/nc-fayetteville-outer-loop-i295-new-sections-open/12478490/ | 
| 
                (unincorporated),
                NC Robeson Co. United States  | 
            
                SR 71 / Leeper Rd. (SR 1717) (34.90711, -78.99060)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 39.6240  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://www.aaroads.com/guides/nc-071/ | 
| 
                Waukee,
                IA Dallas Co. United States  | 
            
                NW 2nd St. / NW Sunrise Dr. (41.62191, -93.88215)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | East leg stubbed. Yield-controlled right-turn bypass lane on west leg. Year Completed estimated (2021-2022). https://www.waukee.org/194/Capital-Improvement-Projects | 
| 
                Waukee,
                IA Dallas Co. United States  | 
            
                NW 2nd St. / (parking) (41.62461, -93.88202)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | East leg stubbed. Access to school and park. Year Completed estimated (2021-2022). https://www.waukee.org/194/Capital-Improvement-Projects | 
| 
                Waukee,
                IA Dallas Co. United States  | 
            
                NW Sunrise Dr. / NW 6th St. / (parking) (41.62216, -93.88667)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 51.8160  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2021 | Access to school. https://www.waukee.org/194/Capital-Improvement-Projects | 
| 
                Camanche,
                IA Clinton Co. United States  | 
            
                US 67 / 7th Ave. (41.79727, -90.25775)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | https://www.youtube.com/watch?v=r8ajPBUZU6E | 
| 
                Jackson,
                MI Jackson Co. United States  | 
            
                N Elm Ave. / I-94-US 127 EB Ramps (42.27461, -84.38325)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 53.3400  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2023 | https://www.michigan.gov/mdot/projects-studies/i-route-construction/i94-road-and-bridge-rebuilding-project-jackson-county | 
| 
                Jackson,
                MI Jackson Co. United States  | 
            
                N Elm Ave. / I-94-US 127 WB Entrance Ramp (42.27627, -84.38357)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 48.7680  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2023 | https://www.michigan.gov/mdot/projects-studies/i-route-construction/i94-road-and-bridge-rebuilding-project-jackson-county | 
| 
                Jackson,
                MI Jackson Co. United States  | 
            
                N Elm Ave. / Seymour Rd. / Rosehill Rd. (42.27724, -84.38398)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 51.8160  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | https://www.michigan.gov/mdot/projects-studies/i-route-construction/i94-road-and-bridge-rebuilding-project-jackson-county | 
| 
                Greenwood,
                IN Johnson Co. United States  | 
            
                S Honey Creek Rd. / Stones Crossing Rd. (39.57825, -86.13973)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | Replaced offset T-intersections. https://dailyjournal.net/2022/08/21/stones-crossing-honey-creek-roads-to-close-for-roundabout-construction-2/ | 
| 
                Bend,
                OR Deschutes United States  | 
            
                SE Stonegate Dr. / SE Hedgewood Ln. / Addie Tripplett Loop (44.00642, -121.32106)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 33.5280  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | |
| 
                Bend,
                OR Deschutes United States  | 
            
                SE Stonegate Dr. / SE Rolled Rock Way / SE Addie Triplett Loop (44.00734, -121.31987)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 27.4320  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | |
| 
                Bend,
                OR Deschutes United States  | 
            
                SE 15th St. / SE Wilson Ave. (44.04410, -121.28383)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 33.5277  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | https://ktvz.com/news/bend/2023/05/12/bends-latest-roundabout-opens-at-se-15th-street-and-wilson-avenue/ | 
| 
                Ruffs Dale,
                PA Westmoreland Co. United States  | 
            
                SR 3014 (Hunker Rd.) / I-70 WB Ramps (40.21336, -79.66387)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 54.8640  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2021 | Year Completed estimated (2020-2021). | 
| 
                Ruffs Dale,
                PA Westmoreland Co. United States  | 
            
                Waltz Mill Rd. / SR 3014 (Hunker Rd.) / Waltz Mill Flats Rd. (40.21406, -79.66566)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 54.8640  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Merging right-turn bypass lane on east leg. Year Completed estimated (2020-2021). | 
| 
                Harmony,
                PA Butler Co. United States  | 
            
                Little Creek Rd. / Mercer Rd. (40.81106, -80.12356)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.6720  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | Year Completed estimated (2022-2023). | 
| 
                Lincoln,
                NE Lancaster Co. United States  | 
            
                S Coddington Ave. / W A St. (40.79914, -96.74940)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2023 | Yield-controlled right-turn bypass lanes on north and south legs. Add-lane right-turn bypass lane on east leg. Designed for future expansion to 2x2 configuration. Year Completed estimated (2022-2023). | 
| 
                North Bend,
                WA King Co. United States  | 
            
                436th Ave. SE / SE 136th St. (47.47778, -121.75834)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2023 | https://livingsnoqualmie.com/updated-construction-schedule-for-se-136th-street-436th-avenue-roundabout-in-north-bend/ | 
| 
                St Albert,
                AB Division 11 Canada  | 
            
                Hwy 633 (Villeneuve Rd.) / (parking) (53.65791, -113.63362)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 35.0000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2023 | https://stalbert.ca/dev/construction/transportation/villeneuve/ | 
| 
                St Albert,
                AB Division 11 Canada  | 
            
                Villeneuve Rd. / Dennison Dr. / Jensen Gate (53.65788, -113.65248)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | https://stalbert.ca/dev/construction/transportation/villeneuve/ | 
| 
                Guaynabo,
                PR Guaynabo United States  | 
            
                Calle Cecilio Urbina / (parking) (18.35675, -66.11388)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 70.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2014 | |
| 
                Guaynabo,
                PR Santa Rosa Barrio United States  | 
            
                Calle Orquídea (18.35695, -66.11742)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 70.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2014 | |
| 
                Guaynabo,
                PR Santa Rosa Barrio United States  | 
            
                Calle El Yunque / Calle Parque de los Niños / Calle El Vigia (18.36403, -66.11971)  | 
            
                Other Existing  | 
            
                All-Way Stop Unknown  | 
            
                4 Approaches 0 Driveways 48.7680  | 
            
                Other (At-Grade) Single-Lane  |   
            ||
| 
                Guaynabo,
                PR Santa Rosa Barrio United States  | 
            
                Calle Príncipe de Asturias (18.36386, -66.13226)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                2 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2016 | |
| 
                Guaynabo,
                PR Frailes Barrio United States  | 
            
                Avenida B / Calle A (18.37322, -66.11382)  | 
            
                Other Existing  | 
            
                Other Unknown  | 
            
                4 Approaches 0 Driveways  | 
            
                Other (At-Grade) Single-Lane  |   
            Mix of stop, yield, and uncontrolled movements. | |
| 
                Manteca,
                CA San Joaquin Co. United States  | 
            
                E Woodward Ave. / Shoreline Dr. / McKinley Ave. (37.77547, -121.27071)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 36.5760  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | No splitter island on north leg (rural). Year Completed estimated (2021-2022). | 
| 
                Manteca,
                CA San Joaquin Co. United States  | 
            
                Galleria Dr. / Diablo View Dr. (37.77254, -121.26299)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 36.5760  | 
            
                Other (At-Grade) Single-Lane  |   
            2019 | Year Completed estimated (2018-2020). | 
| 
                Stockton,
                CA San Joaquin Co. United States  | 
            
                E Swain Rd. / Montauban Ave. (38.01248, -121.29015)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 35.0520  | 
            
                Other (At-Grade) Single-Lane  |   
            2017 | Year Completed estimated (2016-2017). | 
| 
                Stockton,
                CA San Joaquin Co. United States  | 
            
                Montauban Ave. / Hammertown Dr. (38.01652, -121.28893)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 27.4320  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | |
| 
                Engelwood,
                CO Douglas Co. United States  | 
            
                Aviator Way / Aviator Ln. (39.55846, -104.84554)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2003 | Year Completed estimated (2002-2003). South leg added 2004-2005. |