| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Chesterfield Court House,
                VA Chesterfield Co. United States | Mimms Dr. / Government Center Pkwy. (37.37778, -77.50466) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 53.1481 | Other (At-Grade) Single-Lane | 2003 | Right-turn-only lane on north leg. ICD estimated from Google Maps linework. | 
| Hollymead,
                VA Albemarle Co. United States | Timberwood Blvd. / Conner Blvd. (38.13065, -78.44083) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.8813 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Hollymead,
                VA Albemarle Co. United States | Timberwood Blvd. / Grand Forks Blvd. (38.13111, -78.44283) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 93.9459 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Hollymead,
                VA Albemarle Co. United States | Powell Creek Dr. / Timberwood Pkwy. / Shady Brook Trl. (38.11509, -78.43404) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 25.3710 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Winchester,
                VA Frederick Co. United States | Airport Rd. / Victory Rd. (39.13417, -78.13571) | Roundabout Existing | All-Way Yield None | 2 Approaches 0 Driveways 32.4242 | Other (At-Grade) Single-Lane | 2004 | Year Completed estimated (2003-2005). ICD estimated from Google Maps linework. | 
| Short Pump,
                VA Goochland Co. United States | Capitol One Dr. / Tuckahoe Creek Pkwy. access (37.63382, -77.67312) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 38.7788 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Short Pump,
                VA Goochland Co. United States | Capitol One Dr. / VA 288 Ramps (37.63224, -77.67027) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 53.9131 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Linton Hall,
                VA Prince William Co. United States | Tartan Hills Pkwy (VA 3254) / Broadsword Dr. (VA 3256) (38.74232, -77.58066) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.9462 | Other (At-Grade) Single-Lane | 2003 | ICD estimated from Google Maps linework. | 
| Linton Hall,
                VA Prince William Co. United States | Braemar Pkwy. (VA 3080) / Iona Sound Dr. (VA 3089) (38.73510, -77.56889) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 46.5816 | Other (At-Grade) Single-Lane | 1999 | Year Completed estimated (1994-2002). ICD estimated from Google Maps linework. | 
| Amherst,
                VA Amherst Co. United States | US 60 / US 29 (37.58815, -79.04990) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.2314 | Other (At-Grade) Single-Lane | 2004 | Constructed in 1936, upgraded in 1940 and again in 2004. ICD estimated from Google Maps linework. | 
| Port St. Lucie,
                FL St. Lucie Co. United States | SE Westmoreland Blvd. / Morningside Blvd. (27.25997, -80.30961) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 49.8991 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Spokane,
                WA Spokane Co. United States | SR 206 (Mt. Spokane Park Dr.) / Bruce Rd. (47.78761, -117.30400) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.3076 | Other (At-Grade) Single-Lane | 2005 | http://www.wsdot.wa.gov/Projects/SR206/BruceRoadRoundabout/. Opened December 2005. Previously controlled by 2-way stop control ICD estimated from Google Maps linework. | 
| Spokane,
                WA Spokane Co. United States | Wellesley Ave. / A St. (47.70076, -117.45400) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.7401 | Other (At-Grade) Single-Lane | 2005 | Opened October 2005. ICD estimated from Google Maps linework. | 
| Petaluma,
                CA Sonoma Co. United States | Casa Grande Rd. / Ely Blvd. (38.24348, -122.59580) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.8924 | Other (At-Grade) Single-Lane | 1999 | ICD estimated from Google Maps linework. | 
| Phoenix,
                AZ Maricopa Co. United States | W Riverwood Blvd. / W Kirby Ave. (33.41608, -112.27480) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 16.9473 | Other (At-Grade) Single-Lane | 2002 | Painted splitter islands. ICD estimated from Google Maps linework. | 
| Cottonwood,
                AZ Yavapai Co. United States | AZ 89A / Avenida Centerville (34.75854, -112.05880) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.0983 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Clarkdale,
                AZ Yavapai Co. United States | AZ 89A / Cement Plant Rd. / Clarkdale Pkwy. (34.76220, -112.06416) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Series of 5 roundabouts. Yield-controlled right-turn bypass lane on east leg. Year Completed estimated (2007-2009). | 
| Cottonwood,
                AZ Yavapai Co. United States | AZ 89A / Groseta Ranch Rd. (34.74706, -112.04510) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 46.1235 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Cottonwood,
                AZ Yavapai Co. United States | AZ 89A / Lisa St. / Lincoln Dr. (34.75449, -112.05400) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.0444 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Mesa,
                AZ Maricopa Co. United States | Brown Rd. / Loop 202 SB Ramps (33.43689, -111.65280) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.8563 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2007 | ICD estimated from Google Maps linework. | 
| Mesa,
                AZ Maricopa Co. United States | Brown Rd. / Loop 202 NB Ramps (33.43694, -111.64850) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 47.8396 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2007 | ICD estimated from Google Maps linework. | 
| Sedona,
                AZ Coconino Co. United States | AZ 89A / AZ 179 (34.86597, -111.76370) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.1774 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Sedona,
                AZ Coconino Co. United States | AZ 89A / Brewer Rd. (34.86599, -111.76500) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.2376 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Clarkdale,
                AZ Yavapai Co. United States | Clarkdale Pkwy. / Mountain Gate Dr. (34.76500, -112.06276) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2005 | Year Completed estimated (2003-2006). | 
| Woburn,
                MA Middlesex Co. United States | I-95 Ramps / MA 38 (Main St.) (42.49945, -71.15711) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 30.8196 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | ICD estimated from Google Maps linework. | |
| Revere,
                MA Suffolk Co. United States | Copeland Circle [Rte 60 (Squire Rd.) / US 1 Ramps] (42.43008, -71.01710) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 381.0000 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max) | Retrofitted (November 2018) with multi-lane approaches/departures on the Route 1 ramps and roundabout style pavement markings and signs within the circulating roadway. ICD = 1250 ft x 880 ft. 21442 | |
| Boston,
                MA Suffolk Co. United States | Old Colony Ave. / Columbia Rd. / Southampton St. (42.32935, -71.05222) | Rotary Existing | Unknown Unknown | 5 Approaches 0 Driveways 66.2213 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Boston,
                MA Suffolk Co. United States | Columbia Rd. / William J. Day Blvd. (42.32172, -71.05128) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 69.7616 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Boston,
                MA Suffolk Co. United States | Willard St. / I-93 Ramps / Furnace Brook Expwy. (42.24208, -71.02673) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 99.0276 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | ICD estimated from Google Maps linework. | |
| Marana,
                AZ Pima Co. United States | Main St. / Civic Center Dr. (32.44841, -111.21150) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.2674 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Newport,
                RI Newport Co. United States | J. T. Connell Hwy. / Admiral Kalbfus Rd. (41.50703, -71.31757) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2022 | Conversion from rotary to roundabout. https://www.newportthisweek.com/articles/rotary-morphing-into-a-roundabout/ | 
| Kingston,
                RI Washington Co. United States | Kingstown Rd. / Point Judith Rd. (41.43422, -71.48238) | Rotary Existing | Unknown Unknown | 3 Approaches 0 Driveways 81.4821 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Quincy,
                MA Norfolk Co. United States | Washington St (Rte 3A) / Dee Rd (42.24553, -70.97224) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 66.3095 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | Rotary update ICD estimated from Google Maps linework. | 
| Hingham,
                MA Plymouth Co. United States | Rte. 3A (Summer St.) / Chief Justic Cushing Hwy. / Green St. (42.24615, -70.88130) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 60.1200 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Lakeville,
                MA Plymouth Co. United States | Rte. 44 / Rte. 28 / Rte. 18 (41.90274, -70.95914) | Rotary Existing | Unknown Unknown | 5 Approaches 0 Driveways 106.6697 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Bourne,
                MA Barnstable Co. United States | US 6 / Rte. 28 (Main St.) (41.74607, -70.61805) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 92.6736 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Riverhead,
                NY Suffolk Co. United States | Flanders Rd. (Rte. 24) / Peconic Ave. / Lake Ave. / Riverleigh Ave. (40.91461, -72.66277) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 58.6650 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | Converted from rotary to roundabout in 2018. https://riverheadlocal.com/2018/10/26/its-been-a-long-road-to-a-new-roundabout-in-riverside-but-its-officially-completed/. ICD estimated from Google Maps linework. | 
| Riverhead,
                NY Suffolk Co. United States | Rte. 24 / CR 94 (40.91591, -72.66968) | Rotary Existing | Unknown Unknown | 3 Approaches 0 Driveways 86.6419 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Riverhead,
                NY Suffolk Co. United States | Rte. 24 / (unknown) (40.91524, -72.66606) | Rotary Existing | Unknown Unknown | 3 Approaches 0 Driveways 48.7366 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Riverhead,
                NY Suffolk Co. United States | Rte. 58 / Roanoke Ave. (40.93315, -72.67399) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.7005 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Was single-lane traffic circle. Redesigned, resigned, and restriped in 2009. ICD estimated from Google Maps linework. | 
| Fort Montgomery,
                NY Orange Co. United States | US 6 / US 9W / Bear Mountain Bridge (41.32020, -73.99147) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 98.6676 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Bear Mountain,
                NY Rockland Co. United States | US 6 / Seven Lakes Dr. (41.30530, -74.03460) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 109.4564 | Other (At-Grade) Multilane (2 Lane, unspecified) | ICD estimated from Google Maps linework. | |
| Squamish,
                BC Squamish-Lillooet District Canada | Commercial Way / Discovery Way (49.72279, -123.15057) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Home Depot retail center on one corner. Uses fishhook signs and pavement markings. Year Completed estimated (2004-2009). | 
| Orlando,
                FL Orange Co. United States | Arbor Park Ln. / Village Oak Ln. (28.78793, -81.35421) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 32.4483 | Other (At-Grade) Single-Lane | Part of retail shopping center/office park development. Series of three roundabouts. Functional Class: Local ICD estimated from Google Maps linework. | |
| Orlando,
                FL Orange Co. United States | Arbor Park Ln. / Colonial Center Pkwy. / Colonial Grand Ln. (28.79006, -81.35422) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 29.3075 | Other (At-Grade) Single-Lane | Part of retail shopping center/office park development. Series of three roundabouts. Functional Class: Local ICD estimated from Google Maps linework. | |
| Orlando,
                FL Orange Co. United States | Colonial Center Pkwy. / Parking lot access (28.79184, -81.35422) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 46.0539 | Other (At-Grade) Single-Lane | Part of retail shopping center/office park development. Series of three roundabouts. Functional Class: Local ICD estimated from Google Maps linework. | |
| Asheville,
                NC Buncombe Co. United States | College St. / Valley St. / Oak St. (35.59719, -82.54733) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.1343 | Other (At-Grade) Single-Lane | 2005 | Entrance to downtown. Downtown redevelopment - "road diet". ICD estimated from Google Maps linework. | 
| West Jordan,
                UT Salt Lake Co. United States | W 8020 S / (parking lots) (40.60561, -111.93990) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.3888 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Grand Junction,
                CO Mesa Co. United States | Main St. / 7th St. (39.06731, -108.56104) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.8912 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Maplewood,
                MN Ramsey Co. United States | Legacy Pkwy / (unknown) (45.03324, -93.03310) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 27.0089 | Other (At-Grade) Single-Lane | 2004 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Bridal Falls,
                BC Fraser Valley Regional District Canada | Hwy 9 / Yale Road East (49.18523, -121.76500) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2004 | Completed October 29, 2004. | 
| Fort Wayne,
                IN Allen Co. United States | Old Mill Rd. / Westover Rd. (41.04247, -85.15324) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 29.7261 | Other (At-Grade) Single-Lane | 2001 | Previously controlled by two-way stop control Functional Class: Collector ICD estimated from Google Maps linework. | 
| Fort Wayne,
                IN Allen Co. United States | Pontiac St. / Wayne Trace (South) / Adams St. / Pioneer St. (41.06100, -85.10003) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2003 | One of two adjacent roundabouts. | 
| Fort Wayne,
                IN Allen Co. United States | Pontiac St. / Wayne Trace (North) / Fenker Ave. / Pioneer St. (41.06183, -85.09948) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2003 | One of two adjacent roundabouts. | 
| Dublin,
                OH Union Co. United States | Hyland-Croy Rd. / Glacier Ridge Blvd (40.15634, -83.18476) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.9484 | Other (At-Grade) Single-Lane | 2006 | A school nearby and park on the other side. Previously controlled by stop control side street Functional Class: Arterial/Residential ICD estimated from Google Maps linework. | 
| Port Hawkesbury,
                NS Inverness Canada | Rte 104 / Rte 105 / Rte 19 / Rte 4 (45.64691, -61.40460) | Rotary Existing | Unknown Unknown | 3 Approaches 0 Driveways 70.9690 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Brighton,
                CO Adams Co. United States | W. Bridge St. / US 85 NB Ramps (39.98683, -104.82320) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 43.0090 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2006 | Part of double-dumbbell interchange with two roundabouts and one storage lane into railroad crossing. ICD estimated from Google Maps linework. | 
| Brighton,
                CO Adams Co. United States | W. Bridge St. / US 85 SB Ramps (39.98682, -104.82450) | Roundabout Existing | Unknown Unknown | 5 Approaches 0 Driveways 43.9241 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2006 | Part of double-dumbbell interchange with two roundabouts and one storage lane into railroad crossing. ICD estimated from Google Maps linework. | 
| Lehi,
                UT Utah Co. United States | Main St. (Hwy 73) / N 500 W (Hwy 197) (40.38755, -111.85710) | Roundabout Existing | All-Way Yield At-grade Rail Crossing Signals/Gates (controlling approach only) | 4 Approaches 0 Driveways 30.9296 | Other (At-Grade) Single-Lane | 2003 | Railroad approx. 400 feet from roundabout. Traffic is backed up on Main St. at all locations including the RR xing and roundabout - high growth and no other traffic options to and from freeway. ICD estimated from Google Maps linework. | 
| Bellevue,
                WI Brown Co. United States | US 141 / Allouez Ave. (44.45882, -87.95038) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.4753 | Other (At-Grade) Single-Lane | 2007 | Railroad is ~110 feet from roundabout. Seasonal summaer crossing and maybe 1 train per day for a short duration. Opened November 2, 2007. ICD estimated from Google Maps linework. | 
| Ottawa,
                ON City of Ottawa Canada | Kilborn Ave. / Lamira St. (45.38604, -75.67085) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.5195 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Ottawa,
                ON City of Ottawa Canada | Prince of Wales Dr. / National Capital Com Driveway (45.39028, -75.70744) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 40.2598 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2011 | Converted old circle. ICD estimated from Google Maps linework. | 
| Ottawa,
                ON City of Ottawa Canada | Sussex Dr. / Rideau Gate (45.44456, -75.69254) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 24.3003 | Other (At-Grade) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| Kemptville,
                ON United Counties of Leeds and Grenville Canada | CR 43 / Rideau River Rd. (45.02990, -75.63668) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.0000 | Other (At-Grade) Single-Lane | 2000 | Year Completed estimated (before 2004). ICD estimated from Google Maps linework. | 
| Orlando,
                FL Orange Co. United States | N. Westmoreland Dr. / S. Lake Adair Blvd. (28.55947, -81.39339) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 22.0291 | Other (At-Grade) Single-Lane | 1998 | Old circle, judging by condition of brick pavement; additional yield signs w/ minimum fine; official bike route; drainage constraints; skewed Functional Class: Collector? ICD estimated from Google Maps linework. | 
| Conway,
                AR Faulkner Co. United States | Washington Ave. / Tyler St. / Winfield St. (35.10256, -92.44462) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 34.1988 | Other (At-Grade) Single-Lane | 2005 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Orlando,
                FL Orange Co. United States | N. Westmoreland Dr. / N. Lake Adair Blvd. (28.56104, -81.39342) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 17.8328 | Other (At-Grade) Single-Lane | 1999 | Old circle, judging by condition of brick pavement; additional yield signs w/ minimum fine; official bike route; drainage constraints Functional Class: Collector? ICD estimated from Google Maps linework. | 
| Seattle,
                WA King Co. United States | 31st Ave. E / E. Pike St. (47.61410, -122.29250) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Seattle,
                WA King Co. United States | 32nd Ave. E / E. Pike St. (47.61408, -122.29140) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Seattle,
                WA King Co. United States | 33rd Ave. E / E. Pike St. (47.61405, -122.29030) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 73.2661 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | 32nd Ave. E / E. Pine St. (47.61526, -122.29130) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 63.6032 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | 32nd Ave. E / E. Olive St. (47.61643, -122.29130) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 22.5424 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | 32nd Ave. E / E. Howell St. (47.61763, -122.29130) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 11.2709 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | 33rd Ave. E / E. Howell St. (47.61764, -122.29020) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 79.7016 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | Woodlawn Ave. N / Wallingfor Ave. N (47.69778, -122.33650) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 9.6460 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Seattle,
                WA King Co. United States | Densmore Ave. N / N. 36th St. (47.65051, -122.33750) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 13.6775 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Estero,
                FL Lee Co. United States | W. Bay Blvd. / Baybridge Blvd. (26.41991, -81.83290) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 36.3660 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Columbine,
                CO Jefferson Co. United States | S. Simms St. / Nelson St. (39.64159, -105.12910) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 38.6271 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | Right turn bypass lanes on three legs. ICD estimated from Google Maps linework. | 
| Madras,
                OR Jefferson Co. United States | SE Grizzly Rd. / SE J St. / SE City View Rd. / (future leg) (44.62504, -121.10943) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 54.4017 | Other (At-Grade) Single-Lane | 2007 | Sized for conversion to ultimate double-lane. Bear sculpture in central island. ICD estimated from Google Maps linework. | 
| Madras,
                OR Jefferson Co. United States | SE City View St. / SE Yarrow Ave. / (future leg) (44.63084, -121.10905) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.3963 | Other (At-Grade) Single-Lane | 2007 | Sized for conversion to ultimate double-lane. Raptor sculpture in central island. ICD estimated from Google Maps linework. | 
| Houston,
                TX Harris Co. United States | Washington Ave. / Westcott St. / Arnot St. (29.77107, -95.42352) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8637 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2005 | http://www.chron.com/disp/story.mpl/metropolitan/moveit/4660312.html | 
| Lewisville,
                NC Forsyth Co. United States | Concord Church Rd. / US 421 NB Ramps (36.09143, -80.42963) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.8835 | Freeway Ramps (Grade-Separated) Single-Lane | 2003 | Mirror image of other ramp. ICD estimated from Google Maps linework. | 
| Owatonna,
                MN Steele Co. United States | CSAH 7 / TH 14 EB Ramps (44.05747, -93.27671) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 46.3480 | Freeway Ramps (Grade-Separated) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Owatonna,
                MN Steele Co. United States | CSAH 7 / TH 14 WB Ramps (44.05998, -93.27671) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1964 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2012 | ICD estimated from Google Maps linework. | 
| Brooklyn Park,
                MN Hennepin Co. United States | Seltzer Pkwy. / Neddersen Pkwy. / Founders Pkwy. (45.11604, -93.36655) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 40.4547 | Other (At-Grade) Single-Lane | 1995 | Will be a 4th leg in future (Tessman Pkwy.). Functional Class: Collector ICD estimated from Google Maps linework. | 
| Rochester,
                MN Olmstead Co. United States | Fox Valley Dr. / Fox Knoll Dr. SW (44.00954, -92.50074) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.7826 | Other (At-Grade) Single-Lane | 2000 | Previously controlled by new Functional Class: Local ICD estimated from Google Maps linework. | 
| Minneapolis,
                MN Hennepin Co. United States | Minnehaha Ave. / Godfrey Pkwy. (44.91655, -93.21317) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.1384 | Other (At-Grade) Single-Lane | 2001 | ICD estimated from Google Maps linework. | 
| Maple Grove,
                MN Hennepin Co. United States | Jonquil Ln. / 85th Ave. (45.10938, -93.43398) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 57.3175 | Other (At-Grade) Single-Lane | 2001 | Mountable splitter islands, driverways in circle, parking in circle, pedestrian amenity in central island. Functional Class: Local ICD estimated from Google Maps linework. | 
| Brooklyn Park,
                MN Hennepin Co. United States | 108th Ave. / Regent Ave. / Perry Dr. (45.15072, -93.34499) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.0071 | Other (At-Grade) Single-Lane | 2005 | No splitter islands. Functional Class: Local ICD estimated from Google Maps linework. | 
| Blaine,
                MN Anoka Co. United States | Club West Pkwy. / 113th Ave. (45.17343, -93.23103) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 52.2014 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Blaine,
                MN Anoka Co. United States | Lakes Pkwy. / Harpers St. (45.19327, -93.19199) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.0332 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Grand Rapids,
                MN Itasca Co. United States | 7th Ave. SE / 10th St. / 8th St. SE (47.22178, -93.51791) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.9349 | Other (At-Grade) Single-Lane | 2005 | Replaced two offset T intersections. ICD estimated from Google Maps linework. | 
| Grand Rapids,
                MN Itasca Co. United States | 10th St. SW (Golf Course Rd.) / Grand Itasca Clinic and Hospital entrance (47.22104, -93.55408) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.5019 | Other (At-Grade) Single-Lane | 2005 | No accidents reported to date (2007). Rural environment. ICD estimated from Google Maps linework. | 
| Woodbury,
                MN Washington Co. United States | Lake Rd. / Settlers Ridge Pkwy. (44.90197, -92.87568) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 46.5279 | Other (At-Grade) Single-Lane | 2005 | Designed for future two-lane roundabout. ICD estimated from Google Maps linework. | 
| Burnsville,
                MN Dakota Co. United States | Portland Ave. / E. Nicollet Blvd. (44.75141, -93.26827) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.9270 | Other (At-Grade) Single-Lane | 2005 | Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| Fredericksburg,
                VA N/A Co. United States | Hospital Dr. / Sam Perry Blvd. (38.30750, -77.48798) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.8643 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Prior Lake,
                MN Scott Co. United States | Fountain Hills Dr. / Jeffers (44.74596, -93.44472) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.8679 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Monticello,
                MN Wright Co. United States | CSAH 18 (Fenning Ave.) / Meadow Oak Ave. (45.28698, -93.77066) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.9722 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Champlin,
                MN Hennepin Co. United States | 109th Ave. / Goose Lake Rd. / Zachary Ln. (45.15226, -93.42163) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.3217 | Other (At-Grade) Single-Lane | 2006 | Posted speed on mainline approach 45 mph. Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| Maple Grove,
                MN Hennepin Co. United States | Norwood Ln. / 85th Pl. (45.10971, -93.43961) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 44.6737 | Other (At-Grade) Single-Lane | 2006 | Intersection of local and collector street in residential development. Functional Class: Collector ICD estimated from Google Maps linework. |