| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| West Lafayette,
                IN Tippicanoe Co. United States | McClure Ave. / Win Hentschel Blvd. (40.46592, -86.92810) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 59.0613 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | W. 136th St. / Ditch Rd. (39.98478, -86.18355) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.2650 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | W. 141st St. / Ditch Rd. (39.99198, -86.18353) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.6006 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | W. 141st St. / Springmill Rd. (39.99215, -86.16481) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.5156 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Valparaiso,
                IN Porter Co. United States | Laporte Ave. / Sturdy Rd. (41.46645, -87.03669) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2008 | Right-turn-only lanes on west, east, and south legs. | 
| Kokomo,
                IN Howard Co. United States | Center Rd. / Webster St. (40.43313, -86.13661) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.9995 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Des Moines,
                IA Polk Co. United States | Gannett Ave. / Rittenhouse St. (41.52031, -93.65178) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 41.1341 | Other (At-Grade) Single-Lane | 2000 | ICD estimated from Google Maps linework. | 
| Altoona,
                IA Polk Co. United States | 10th Ave. SE / 15th St. SE (41.63733, -93.45121) | Other Removed | Unknown Unknown | 4 Approaches 0 Driveways 18.2880 | Other (At-Grade) Single-Lane | 2024 | No splitter islands. Opened December 16, 2005. Circle replaced with a 4-way stop in 2024. https://www.altoona-iowa.com/news_detail_T2_R153.php | 
| (unincorporated),
                IA Blackhawk Co. United States | Independence Ave. (IA 281) / Raymond Rd. (V49) (42.49790, -92.21953) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.7456 | Other (At-Grade) Single-Lane | 2008 | Opened Octboer 29, 2008. First roundabout in Iowa with 55mph approaches. Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| Cedar Falls,
                IA Blackhawk Co. United States | Cedar Heights Dr. / Viking Rd. (42.48899, -92.41638) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 54.8640 | Other (At-Grade) Single-Lane | 2007 | Right-turn-only lane on west leg. Intersection relocated from T-intersection to the south. Opened November 2007. | 
| Clive,
                IA Dallas Co. United States | NW 156th St. / Boston Pkwy. (41.62066, -93.83356) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.7487 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2002 | ICD estimated from Google Maps linework. | 
| Clive,
                IA Dallas Co. United States | Berkshire Pkwy. / Sheridan Ave. (41.61697, -93.84561) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 45.5370 | Other (At-Grade) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| Clive,
                IA Dallas Co. United States | Berkshire Pkwy. / Boston Pkwy. (41.62153, -93.84657) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.3558 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | E. 9th St. / Quarry Rd. (41.68176, -91.55988) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.5714 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Opened August 15, 2006. ICD estimated from Google Maps linework. | 
| Coralville,
                IA Johnson Co. United States | Holiday Rd. / Corridor Way (41.69709, -91.60332) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.3202 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Ottumwa,
                IA Wapello Co. United States | US 34 / US 63 (41.00102, -92.40453) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.3638 | Other (At-Grade) Single-Lane | 2006 | Opened November 2006. Right turn bypass lanes on all approaches. ICD estimated from Google Maps linework. | 
| Urbandale,
                IA Dallas Co. United States | 142nd St. / Douglas Pkwy. (41.62940, -93.80899) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 44.6355 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Billings,
                MT Yellowstone Co. United States | Shiloh Crossing Blvd. / Olympic Blvd. (45.75216, -108.61570) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.1677 | Other (At-Grade) Single-Lane | 2009 | Functional Class: Local ICD estimated from Google Maps linework. | 
| West Des Moines,
                IA Dallas Co. United States | Wistful Vista Dr. / S. 79th St. (41.56572, -93.81668) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.6372 | Other (At-Grade) Single-Lane | 1999 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Morse Blvd. / Odell Cir. (north) (28.89448, -81.96899) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 51.2367 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2005 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Morse Blvd. / Bonita Blvd. (28.87963, -81.96627) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 64.0080 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2006 | |
| The Villages,
                FL Sumter Co. United States | Morse Blvd. / Odell Cir. (south) (28.87232, -81.96546) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.3853 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | ICD estimated from Google Maps linework. | 
| The Villages,
                FL Sumter Co. United States | Buena Vista Blvd. / St. Charles Pl. (28.87086, -81.99529) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.3861 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | ICD estimated from Google Maps linework. | 
| Oxford,
                MS Lafayette Co. United States | Old Taylor Rd. / University of Miss. Access Rd. (34.35899, -89.53144) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.5641 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Oxford,
                MS Lafayette Co. United States | Lamar St. / US 278 EB Ramps (34.35343, -89.52121) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 33.5242 | Other (At-Grade) Single-Lane | 2007 | Built June-July 2007. ICD estimated from Google Maps linework. | 
| Oxford,
                MS Lafayette Co. United States | Lamar St. / US 278 WB Ramps (34.35479, -89.52112) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.4676 | Other (At-Grade) Single-Lane | 2007 | Built June-July 2007. ICD estimated from Google Maps linework. | 
| Laurel,
                MS Jones Co. United States | Central Ave. / Maple St. (31.69108, -89.12855) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.4224 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Waco,
                TX McLennan Co. United States | Austin Ave. / N 38th St. (31.52991, -97.16233) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 18.2880 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2009 | News story at http://www.kcendt.com/?p=11617, Photos at http://www.waco-texas.com/photo-gallery/index22.htm. | 
| Waco,
                TX McLennan Co. United States | Austin Ave. / 29th St. (31.53724, -97.15418) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4317 | Other (At-Grade) Single-Lane | 2009 | News story at http://www.kcendt.com/?p=11617, Photos at http://www.waco-texas.com/photo-gallery/index22.htm. | 
| Clearwater,
                FL Pinellas Co. United States | Rainbow Dr. / Comet Ave. (27.96245, -82.75652) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.0979 | Other (At-Grade) Single-Lane | 2009 | Opened May 2009. Functional Class: Local ICD estimated from Google Maps linework. | 
| Keene,
                NH Cheshire Co. United States | Rte. 101 / Winchester St. (42.92247, -72.29079) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 59.4713 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Keene,
                NH Cheshire Co. United States | Main St. / Winchester St. / Marlboro St. (42.92849, -72.27757) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.2307 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Portsmouth,
                NH Rockingham Co. United States | US 1 / US 1 Bypass / US 4 (43.07290, -70.78094) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 138.7179 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Epsom,
                NH Merrimack Co. United States | US 4-US 202 (Dover Rd.) / Rte 28 (Suncock Valley Hwy.) (43.22784, -71.36053) | Rotary Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 91.4400 | Other (At-Grade) Single-Lane | 1940 | Elliptical shaped. ICD = 300 ft x 260 ft. | 
| Rye,
                NH Rockingham Co. United States | Foyes Corner: Rte 1A (Pioneer Rd. - Sagamore Rd.) / Elwin Rd. / Sagamore Rd. (43.04597, -70.74656) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.0037 | Other (At-Grade) Single-Lane | 2007 | |
| Claremont,
                NH Sullivan Co. United States | Main St. / Broad St. / Tremont St. / Sullivan St. (43.37272, -72.33808) | Other Existing | Other Unknown | 0 Approaches 0 Driveways 32.1219 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Newport,
                NH Sullivan Co. United States | Rte 10 / Rte 11 (43.36506, -72.17355) | Other Existing | Unknown Unknown | 0 Approaches 0 Driveways 30.3894 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Kittery,
                ME York Co. United States | US 1 / Rte 236 (43.10072, -70.74415) | Rotary Existing | Unknown Unknown | 0 Approaches 0 Driveways 91.5646 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Portland,
                OR Multnomah Co. United States | SE 56th Ave. / SE Woodward St. (45.50140, -122.60500) | Traffic Calming Circle Existing | Unknown None | 3 Approaches 0 Driveways 43.5289 | Other (At-Grade) Single-Lane | 1988 | Completed 10/27/1998. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | SE 58th Ave. / SE Woodward St. (45.50140, -122.60310) | Traffic Calming Circle Existing | Unknown None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 1988 | Completed 10/27/1998. | 
| Farmington Hills,
                MI Oakland Co. United States | 14 Mile Rd. / Farmington Rd. (42.52785, -83.37922) | Roundabout Existing | All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK) | 4 Approaches 0 Driveways 29.0452 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Hamburg,
                NY Erie Co. United States | US 62 (E Main St.) / Center St. (42.71622, -78.83438) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 23.6925 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Hamburg,
                NY Erie Co. United States | US 62 (E Main St.) / Buffalo St. (42.71581, -78.82941) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 33.3452 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| East Helena,
                MT Lewis and Clark Co. United States | Canyon Ferry Rd. / Lake Helena Dr. (46.61710, -111.89391) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2009 | |
| Ogden,
                UT Weber Co. United States | Tyler Ave. / University Cir. (41.19333, -111.94780) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.8476 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Completed July 2008. On campus of Weber State University. Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| Ogden,
                UT Weber Co. United States | Tyler Ave. / 41st St. (41.19035, -111.94770) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.1530 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Completed July 2008. On campus of Weber State University. Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| Tigard,
                OR Washington Co. United States | SW Barrows Rd. / SW Roshak Rd. / (parking lot) (45.42692, -122.84486) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.4989 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Woodland,
                CA Yolo Co. United States | Miekle Ave. / Galvin Way (38.65156, -121.73590) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 26.1162 | Other (At-Grade) Single-Lane | 2006 | Previously controlled by new ICD estimated from Google Maps linework. | 
| Newnan,
                GA Coweta Co. United States | E Broad St. / Lower Fayetteville Rd. / Greison Trl. / E Newman Rd. (33.36807, -84.77920) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2008 | Opened Oct. 28, 2008. $520,838 construction cost. | 
| Lawrenceville,
                GA Gwinnett Co. United States | Arnold Rd. / Hutchins Rd. (33.90213, -84.05066) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.6775 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Conyers,
                GA Rockdale Co. United States | Travis St. / Hardin St. / Okelly St. (33.66432, -84.01964) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 22.8629 | Other (At-Grade) Single-Lane | 2001 | Year Completed estimated (1999-2002). ICD estimated from Google Maps linework. | 
| Whitesburg,
                GA Carroll Co. United States | SR 5 / SR 16-US 27 Alt (33.49142, -84.91228) | Other Existing | Unknown Unknown | 0 Approaches 0 Driveways 17.9286 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Roopville,
                GA Carroll Co. United States | SR 5 / Old US 27 (33.46011, -85.12862) | Other Existing | Unknown Unknown | 0 Approaches 0 Driveways 22.9170 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Kennewick,
                WA Benton Co. United States | SR 240 / US 395 SB Ramps (46.21697, -119.13980) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.9307 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | June 2009. ICD estimated from Google Maps linework. | 
| Kennewick,
                WA Benton Co. United States | SR 240 / US 395 NB Ramps / Columbia Dr. (46.21688, -119.13680) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 28.0973 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | June 2009. ICD estimated from Google Maps linework. | 
| Green Bay,
                WI Brown Co. United States | W Mason St. (STH 54) / STH 172 (Airport Dr.) (44.50001, -88.17641) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | Opened November 2011. | 
| Caledonia,
                WI Racine Co. United States | STH 38 / CTH K (Northwestern Ave.) (42.75957, -87.86417) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 35.9524 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Opened November 2007. Right-turn bypass lane. ICD estimated from Google Maps linework. | 
| Medford,
                WI Taylor Co. United States | STH 13 / Allman St. (45.14894, -90.33466) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.8545 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | Opened October 2011. ICD estimated from Google Maps linework. | 
| Medford,
                WI Taylor Co. United States | STH 13 / Ann's Way (45.15473, -90.33393) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 53.9030 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | Opened October 2011. ICD estimated from Google Maps linework. | 
| Dodgeville,
                WI Iowa Co. United States | US 18 / Bennett Rd. (42.96960, -90.11338) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.6954 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Opened October 7, 2008. ICD estimated from Google Maps linework. | 
| New Berlin,
                WI Waukesha Co. United States | Moorland Rd. (CTH O) / I-43 NB Ramps / Rockridge Rd. (42.94913, -88.10900) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.2068 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2007 | Opened September 2007. ICD estimated from Google Maps linework. | 
| New Berlin,
                WI Waukesha Co. United States | CTH Y (Racine Ave.) / I-43 NB Ramps (42.93221, -88.15884) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 41.9731 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | Opened November 2009. ICD estimated from Google Maps linework. | 
| Oconomowoc,
                WI Waukesha Co. United States | Wisconsin Ave. / Walnut St. (43.10956, -88.49469) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.6205 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Opened August 15, 2008. ICD estimated from Google Maps linework. | 
| Lannon,
                WI Waukesha Co. United States | STH 74 (Main St.) / CTH V (Townline Dr.) / McLaughlin Rd. (43.13902, -88.18408) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.3459 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Opened November 15, 2008. ICD estimated from Google Maps linework. | 
| Green Bay,
                WI Brown Co. United States | US 141 / Atkinson Dr. (44.53348, -88.02827) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.4601 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2012 | Opened October 17, 2012. ICD estimated from Google Maps linework. | 
| New Berlin,
                WI Waukesha Co. United States | CTH Y (Racine Ave.) / I-43 SB Ramps (42.93426, -88.15884) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.2182 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | Opened November 2009. ICD estimated from Google Maps linework. | 
| New Berlin,
                WI Waukesha Co. United States | Moorland Rd. (CTH O) / I-43 SB Ramps (42.95341, -88.10897) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 67.3087 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2008 | Opened November 2008. ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | Old Meridian St. / Guilford Ave. (39.98255, -86.14163) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 62.4840 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2008 | Right-turn-only lane on southeast leg. Painted spirals next to central island. | 
| Boise City,
                OK Cimarron Co. United States | US 287 / SR 325 (36.72967, -102.51310) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 94.7642 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Revere,
                MA Suffolk Co. United States | SR 60 / Beach St. (42.40913, -71.00166) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 81.1284 | Other (At-Grade) Multilane (2 Lane, unspecified) | Through movement passes through center. Signalized. Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Revere,
                MA Suffolk Co. United States | SR 60 / SR 107 (42.42123, -71.00449) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 92.5743 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Lynn,
                MA Essex Co. United States | Lynn Way / Nahant Rd. (42.45684, -70.93676) | Rotary Existing | Unknown Unknown | 3 Approaches 0 Driveways 124.2434 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Gloucester,
                MA Essex Co. United States | Grant Circle [Rte 128 (Yankee Division Hwy) / Rte 127 / Washington St.] (42.62204, -70.67609) | Rotary Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 114.3000 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1952 | |
| Gloucester,
                MA Essex Co. United States | Blackburn Circle [Rte 128 (Yankee Division Hwy) / Dory Rd. / School House Rd.] (42.62497, -70.66152) | Rotary Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 175.2600 | Other (At-Grade) Multilane (2 Lane, unspecified) | 1958 | |
| Junction City,
                KS Geary Co. United States | US 40 Business (Washington St.) / I-70 WB Ramps / Goldenbelt Blvd. (39.00839, -96.83505) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Single-Lane | 2006 | Completed July 2006. | 
| Junction City,
                KS Geary Co. United States | East St. / E Chestnut St. / Frontage Rd. / I-70 WB Exit Ramp (39.02176, -96.81661) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 64.0077 | Other (At-Grade) Single-Lane | 2008 | Completed November 2008 (?). | 
| Hutchinson,
                KS Reno Co. United States | E 56th Ave. / N Plum St. (38.11560, -97.92245) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Single-Lane | 2009 | Completed September 2009. | 
| Lawrence,
                KS Douglas Co. United States | N Kasold Dr. / Tillerman Dr. (38.99010, -95.27911) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2007 | Opened October 2007. | 
| Lawrence,
                KS Douglas Co. United States | N Kasold Dr. / Grand Vista Dr. (38.99325, -95.27913) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2007 | Opened October 2007. | 
| Seattle,
                WA King Co. United States | Corliss Ave. N / N 43rd St. (47.65912, -122.33140) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Seattle,
                WA King Co. United States | Corliss Ave. N / N 42nd St. (47.65795, -122.33140) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 13.6756 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | Sunnyside Ave. N / N 42nd St. (47.65794, -122.33020) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 16.8934 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | 2nd Ave. NE / NE 43rd St. (47.65896, -122.32730) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 70.7899 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Littleton,
                CO Arapahoe Co. United States | W. Caley Ave. / S. Spotswood St. (39.60239, -105.01160) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 23.9256 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | 2nd Ave. NE / NE 44th St. (47.66022, -122.32730) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 33.7853 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Superior,
                CO Boulder Co. United States | Rock Creek Pkwy. / 88th St. (39.93764, -105.14780) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 47.6187 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2004 | ICD estimated from Google Maps linework. | 
| Durango,
                CO La Plata Co. United States | Jenkins Ranch Rd. / Molas Dr. (37.28099, -107.85550) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 28.5089 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Scenic Dr. / Lookout Dr. (40.39773, -105.13528) | Other Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 24.3840 | Other (At-Grade) Single-Lane | 1998 | Painted splitter islands; unmarked pedestrian crossings along circulatory roadway. | 
| Loveland,
                CO Larimer Co. United States | E. 13th St. / (unknown) / (parking lot) (40.40565, -105.03960) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 132.7798 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Sculptor Dr. / (unknown) / (parking lot) (40.40465, -105.03520) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 59.1152 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Parker,
                CO Douglas Co. United States | E. Neu Towne Pkwy. / S. Cedar Gulch Ln. (39.51147, -104.79250) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 35.0140 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Parker,
                CO Douglas Co. United States | S. Cedar Gulch Ln. / (unknown) (39.51289, -104.79120) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 35.9347 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Parker,
                CO Douglas Co. United States | E. Neu Towne Pkwy. / (unknown) (39.51047, -104.78530) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 34.0931 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Commerce City,
                CO Adams Co. United States | Turnberry Pkwy. / Revere St. (39.89062, -104.83800) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2005 | Year Completed estimated (2004-2005). | 
| Commerce City,
                CO Adams Co. United States | E 105th Ave. / Uvalda St. (39.88673, -104.83520) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2003 | Year Completed estimated (2002-2003). | 
| Commerce City,
                CO Adams Co. United States | Wheeling St. / E 106th Ave. / Victor St. (39.88895, -104.83121) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2003 | Painted splitter islands. | 
| Middletown,
                DE New Castle Co. United States | Bunker Hill Rd. / Choptank Rd. (39.45790, -75.74350) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 31.3525 | Other (At-Grade) Single-Lane | 2007 | Rural, redesigned in 2008 to better accommodate trucks and farm equipment. ICD estimated from Google Maps linework. | 
| Quakertown,
                PA Bucks Co. United States | Station Rd. / Old Bethlehem Pike (40.42421, -75.33921) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 30.0036 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Rocky Mountain Ave. / Medical Center of the Rockies South (40.41537, -105.00150) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 40.0100 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Loveland,
                CO Larimer Co. United States | Rocky Mountain Ave. / Medical Center of the Rockies North (40.41752, -105.00030) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 47.2831 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Functional Class: Arterial ICD estimated from Google Maps linework. |