| 
                City, 
                State County Country  | 
            
                Intersection (Lat, Lng)  | 
            
                Type Status  | 
            Control Type / Other Control Type | Approaches / Driveways / ICD (m) | 
                Functional Class /  LaneType  | 
            Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| 
                Las Vegas,
                NV Clark Co. United States  | 
            
                Lake South / Crystal Water Way (36.13289, -115.29050)  | 
            
                Roundabout Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 25.0796  | 
            
                Other (At-Grade) Single-Lane  |   
            1994 | Completed August 1994. Functional Class: Collector ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                FL Palm Beach Co. United States  | 
            
                Lakes at Boca Raton / Cain Blvd. (26.39603, -80.21160)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 21.3962  | 
            
                Other (At-Grade) Single-Lane  |   
            1994 | Completed November 1994. ICD estimated from Google Maps linework. | 
| 
                Lisbon,
                MD Howard Co. United States  | 
            
                MD 94 / MD 144 (39.33700, -77.07360)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            1993 | First roundabout in Maryland. Built initially as temporary, made permanent after one month. | 
| 
                Gainesville,
                FL Alachua Co. United States  | 
            
                SE 7th St. / SE 4th Ave. (29.64824, -82.31792)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 18.2880  | 
            
                Other (At-Grade) Single-Lane  |   
            1992 | Pedestrian crossings within circulatory roadway. Completed April 1992. | 
| 
                Sarasota,
                FL Sarasota Co. United States  | 
            
                South Gate Circle: Tuttle Ave. / Siesta Dr. (27.30536, -82.51414)  | 
            
                Other Existing  | 
            
                Other None  | 
            
                4 Approaches 0 Driveways 129.5400  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            Yield control on circulatory roadway. | |
| 
                Naples,
                FL Collier Co. United States  | 
            
                7th St. N. / 7th Ave. N. (26.15619, -81.79971)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 22.5125  | 
            
                Other (At-Grade) Single-Lane  |   
            1998 | Installed for traffic calming. Detailed traffic volume, speed data available. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework. | 
| 
                Naples,
                FL Collier Co. United States  | 
            
                7th St. N. / 11th Ave. N. (26.15712, -81.79420)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 13.7160  | 
            
                Other (At-Grade) Single-Lane  |   
            1996 | Installed for traffic calming. Painted splitter islands. Detailed traffic volume, speed data available. ICD estimated from Google Earth. | 
| 
                Naples,
                FL Collier Co. United States  | 
            
                7th St. N. / 12th Ave. N. (26.15734, -81.79282)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 13.7160  | 
            
                Other (At-Grade) Single-Lane  |   
            1996 | Installed for traffic calming. Detailed traffic volume, speed data available. ICD estimated from Google Earth. | 
| 
                Hollywood,
                FL Broward Co. United States  | 
            
                Hollywood Blvd. / Rainbow Dr. (26.01050, -80.18360)  | 
            
                Other Existing  | 
            
                One-Way/Two-Way Stop None  | 
            
                4 Approaches 0 Driveways 274.3200  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            Uncontrolled mainline, stop-control on side street. Building and parking in central island. | |
| 
                Hollywood,
                FL Broward Co. United States  | 
            
                Hollywood Blvd. / 26th Ave. (26.01110, -80.15920)  | 
            
                Signalized Roundabout/Circle Existing  | 
            
                Signal None  | 
            
                4 Approaches 0 Driveways 200.7172  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            Signal access to parking and building in center of circle. ICD estimated from Google Maps linework. | |
| 
                Modesto,
                CA Stanislaus Co. United States  | 
            
                Chandon Dr. / Calero Dr. (37.67642, -120.93380)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 27.4132  | 
            
                Other (At-Grade) Single-Lane  |   
            2002 | ICD estimated from Google Maps linework. | 
| 
                Modesto,
                CA Stanislaus Co. United States  | 
            
                Bowen Ave. / Fremont Ave. (37.67470, -121.00260)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 18.9061  | 
            
                Other (At-Grade) Single-Lane  |   
            2002 | Previously controlled by twsc ICD estimated from Google Maps linework. | 
| 
                Lake Worth,
                FL Palm Beach Co. United States  | 
            
                SR 802 (Lucerne Ave. - Lake Ave.) / A St. (26.61670, -80.06500)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Pedestrian Signal (red-yellow-green to drivers)  | 
            
                4 Approaches 0 Driveways 57.9120  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2002 | ICD = 190 ft x 140 ft. | 
| 
                Naples,
                FL Collier Co. United States  | 
            
                8th St. S / 12th Ave. S (26.13267, -81.79491)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 18.2281  | 
            
                Other (At-Grade) Single-Lane  |   
            1996 | Installed for community enhancement. ICD estimated from Google Maps linework. | 
| 
                Naples,
                FL Collier Co. United States  | 
            
                7th St. N. / 3rd Ave. N. (26.15530, -81.80524)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 9.6483  | 
            
                Other (At-Grade) Single-Lane  |   
            1998 | Installed for traffic calming. Detailed traffic volume, speed data available. ICD estimated from Google Maps linework. | 
| 
                Tavares,
                FL Lake Co. United States  | 
            
                Main St. / Disston Ave. / Lake Dora Dr. (28.80215, -81.72475)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 20.9315  | 
            
                Other (At-Grade) Single-Lane  |   
            1996 | Railroad tracks running along edge of central island. RR unprotected, train frequency 1-2/wk, 10 mph. ICD estimated from Google Maps linework. | 
| 
                Clovis,
                NM Curry Co. United States  | 
            
                Hwy 245 (Llano Estacado Blvd.) / Norris St. (34.43384, -103.17830)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.3276  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | Completed February 27, 2006. Website: http://www.cityofclovis.org/roundabout/roundabout.htm ICD estimated from Google Maps linework. | 
| 
                Taneytown,
                MD Carroll Co. United States  | 
            
                MD 140 / MD 832 / Antrim Blvd. (39.64809, -77.15468)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.1960  | 
            
                Other (At-Grade) Single-Lane  |   
            1996 | Completed August 1996. Curbs set for double lane, striped for single outer circulating lane. | 
| 
                Hilton Head,
                SC Beaufort Co. United States  | 
            
                Whooping Crane Way / Main St. (32.21647, -80.72187)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.4598  | 
            
                Other (At-Grade) Single-Lane  |   
            1996 | Completed February 1996. ICD estimated from Google Maps linework. | 
| 
                Addison,
                TX Dallas Co. United States  | 
            
                Addison Cir. / Quorum Dr. (32.96138, -96.82592)  | 
            
                Other Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 54.8640  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            1997 | . | 
| 
                Carmel,
                IN Hamilton Co. United States  | 
            
                Old Meridian St. / Grand Blvd. (39.97366, -86.14984)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 56.3880  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2008 | ICD estimated from Google Maps linework. | 
| 
                Durango,
                CO La Plata Co. United States  | 
            
                Wilson Gulch Dr. / Three Springs Blvd. (37.23339, -107.82310)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 51.8160  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2006 | |
| 
                Durango,
                CO La Plata Co. United States  | 
            
                CR 238 / Fort Lewis Dr. / College Dr. (37.27940, -107.85940)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.7643  | 
            
                Other (At-Grade) Single-Lane  |   
            2007 | ICD estimated from Google Maps linework. | 
| 
                Montréal,
                QC Montréal Region Canada  | 
            
                Ave. Marie-Curie / Blvd. Alfred Nobel (45.48518, -73.76222)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 37.6801  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            1998 | Completed November 1998. Functional Class: Collector ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                OR Clackamas Co. United States  | 
            
                SE 147th Ave. / Oregon Trail Dr. / Hines Dr. / Sieben Pkwy. (45.42280, -122.51240)  | 
            
                Other Existing  | 
            
                All-Way Stop None  | 
            
                4 Approaches 0 Driveways 34.3688  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Bend,
                OR Deschutes Co. United States  | 
            
                SW Century Dr. / SW Colorado Ave. / SW Chandler Ave. (44.04180, -121.33200)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 57.9120  | 
            
                Other (At-Grade) Single-Lane  |   
            1999 | Completed Fall 1999. One leg comes in at 60 degree angle. Right-turn bypass lane part of conceptual design but removed for final. First modern roundabout in Oregon. | 
| 
                Bellevue,
                WA King Co. United States  | 
            
                W. Lake Sammamish Pkwy. SE / Lakemont Blvd. SE (47.56776, -122.09980)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 35.4567  | 
            
                Other (At-Grade) Single-Lane  |   
            1997 | Revised August 2005. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Malta,
                NY Saratoga Co. United States  | 
            
                Rte 67 (Dunning St.) / US 9 (42.97116, -73.79296)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 50.2920  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2006 | Part of a series of 5 roundabouts. | 
| 
                Portland,
                OR Multnomah Co. United States  | 
            
                NW 25th Ave. / NW Overton St. (45.53190, -122.70270)  | 
            
                Traffic Calming Circle Existing  | 
            
                One-Way/Two-Way Stop None  | 
            
                4 Approaches 0 Driveways 44.3420  | 
            
                Other (At-Grade) Single-Lane  |   
            1988 | Completed 9/30/1988. ICD estimated from Google Maps linework. | 
| 
                Portland,
                OR Multnomah Co. United States  | 
            
                NW 25th Ave. / NW Marshall St. (45.53040, -122.70270)  | 
            
                Traffic Calming Circle Existing  | 
            
                One-Way/Two-Way Stop None  | 
            
                4 Approaches 0 Driveways 62.7498  | 
            
                Other (At-Grade) Single-Lane  |   
            1988 | Completed 9/30/1988. ICD estimated from Google Maps linework. | 
| 
                Provo,
                UT Utah Co. United States  | 
            
                Riverside Ave. / W 1720 North (40.25703, -111.66810)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 21.8749  | 
            
                Other (At-Grade) Single-Lane  |   
            2000 | ICD estimated from Google Maps linework. | 
| 
                Clackamas,
                OR Clackamas Co. United States  | 
            
                Monterey Ave. / Stevens Rd. (45.43780, -122.56390)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 36.8738  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | Fourth leg serves New Hope Community Church parking lot. ICD estimated from Google Maps linework. | 
| 
                Abingdon,
                MD Harford Co. United States  | 
            
                Tollgate Rd. / Montrose Way (39.48198, -76.32751)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 28.5762  | 
            
                Other (At-Grade) Single-Lane  |   
            2003 | Elementary school and library to north, another school to south. Functional Class: Collector ICD estimated from Google Maps linework. | 
| 
                Portland,
                OR Multnomah Co. United States  | 
            
                NE Cesar E Chavez Blvd. (NE 39th Ave.) / NE Glisan St. (45.52640, -122.62300)  | 
            
                Other Existing  | 
            
                All-Way Stop None  | 
            
                4 Approaches 0 Driveways 68.6113  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            Stop-controlled entries into circle. Bus stop within circulatory roadway. Historical rotary with stop control. ICD estimated from Google Maps linework. | |
| 
                Beaverton,
                OR Washington Co. United States  | 
            
                SW Teal Blvd. / SW 155th Ave. / SW Nutcracker Ct. (45.44060, -122.83760)  | 
            
                Other Existing  | 
            
                All-Way Stop None  | 
            
                4 Approaches 0 Driveways 37.7099  | 
            
                Other (At-Grade) Single-Lane  |   
            Characteristics of a roundabout, but yield signs replaced with stop signs in 1998. ICD estimated from Google Maps linework. | |
| 
                Canmore,
                AB Central Alberta Canada  | 
            
                Three Sisters Pkwy. / Stewart Creek Dr. (51.05031, -115.31370)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 33.7860  | 
            
                Other (At-Grade) Single-Lane  |   
            2008 | ICD estimated from Google Maps linework. | 
| 
                Arcata,
                CA Humboldt Co. United States  | 
            
                Samoa Blvd. / Union St. (40.86140, -124.07730)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 35.2273  | 
            
                Other (At-Grade) Single-Lane  |   
            1999 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Bel Air,
                MD Harford Co. United States  | 
            
                Tollgate Rd. / Westover Ln. / Crisfield Dr. (39.46859, -76.32162)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 26.7377  | 
            
                Other (At-Grade) Single-Lane  |   
            2002 | http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework. | 
| 
                Arcata,
                CA Humboldt Co. United States  | 
            
                Samoa Blvd. / Buttermilk Ln. (40.85710, -124.07250)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 36.1329  | 
            
                Other (At-Grade) Single-Lane  |   
            1999 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Lutherville-Timonium,
                MD Baltimore Co. United States  | 
            
                MD 139 (Charles St.) / Bellona Ave. (39.41790, -76.62900)  | 
            
                Roundabout Removed  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 28.9560  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            1999 | Two-lane circulatory roadway across northern half. | 
| 
                Copley Township,
                OH Summit Co. United States  | 
            
                Ridgewood Rd. / Hametown Rd. (41.11395, -81.66791)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.1947  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | Opened August 21, 2006. ICD estimated from Google Maps linework. | 
| 
                Huntsville,
                AL Madison Co. United States  | 
            
                Old Monrovia Rd. / Providence Main St. / Indian Creek Rd. (34.75765, -86.68776)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 34.3429  | 
            
                Other (At-Grade) Single-Lane  |   
            2004 | Single-lane with right-turn only lanes. Built as staged construction with potential to be multilane. ICD estimated from Google Maps linework. | 
| 
                Camp Verde,
                AZ Yavapai Co. United States  | 
            
                Middle Verde / Cliff Castle (34.60927, -111.86130)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 37.3535  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | ICD estimated from Google Maps linework. | 
| 
                De Pere,
                WI Brown Co. United States  | 
            
                Grant St. (CTH EE) / Lawrence Dr. (44.44511, -88.09367)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 29.8430  | 
            
                Other (At-Grade) Single-Lane  |   
            2008 | Opened September 30, 2008. ICD estimated from Google Maps linework. | 
| 
                Durango,
                CO La Plata Co. United States  | 
            
                Jenkins Ranch Rd. / Kennebec Dr. (37.29216, -107.84010)  | 
            
                Roundabout Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 23.7539  | 
            
                Other (At-Grade) Single-Lane  |   
            2003 | ICD estimated from Google Maps linework. | 
| 
                Dawsonville,
                GA Dawson Co. United States  | 
            
                SR 9E (Lumpkin Campground Rd.) / SR 318 (Dawson Forrest Rd.) (34.35427, -84.05168)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.6720  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | |
| 
                Oakwood,
                GA Hall Co. United States  | 
            
                Landrum Education Dr. / Frontage Rd. / Mathis Dr. (34.23434, -83.86434)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 35.0520  | 
            
                Other (At-Grade) Single-Lane  |   
            2007 | Gainesville College. | 
| 
                Pearl,
                MS Rankin Co. United States  | 
            
                MS 475 (Airport Rd.) / Old Brandon Rd. (32.29057, -90.07133)  | 
            
                Roundabout Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 34.3273  | 
            
                Other (At-Grade) Single-Lane  |   
            1997 | Use of paint to achieve (?) deflection. ICD estimated from Google Maps linework. | 
| 
                Gorham,
                ME Cumberland Co. United States  | 
            
                US 202 / Rte. 4 / Rte. 237 (43.72846, -70.42525)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.0285  | 
            
                Other (At-Grade) Single-Lane  |   
            1997 | Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                MD Prince Georges Co. United States  | 
            
                Ft. Washington Rd. / Swan Creek Rd. (38.72498, -77.00491)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.1576  | 
            
                Other (At-Grade) Single-Lane  |   
            1997 | Fourth leg added. Year Completed estimated (before 2001). ICD estimated from Google Maps linework. | 
| 
                Wall,
                NJ Monmouth Co. United States  | 
            
                NJ 35 / Atlantic Ave. (Brielle Circle) (40.13232, -74.06525)  | 
            
                Rotary Existing  | 
            
                Other Unknown  | 
            
                4 Approaches 0 Driveways 129.6649  | 
            
                Other (At-Grade) Single-Lane  |   
            Traffic circle conversion ICD estimated from Google Maps linework. | |
| 
                Southampton,
                NJ Burlington Co. United States  | 
            
                US 206 / NJ 70 (Red Lion Circle) (39.88715, -74.74104)  | 
            
                Rotary Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 136.5464  | 
            
                Other (At-Grade) Single-Lane  |   
            Traffic circle conversion Functional Class: Arterial ICD estimated from Google Maps linework. | |
| 
                Stuart,
                FL Martin Co. United States  | 
            
                N. Colorado Ave. / E. Osceola St. (27.19860, -80.25300)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 32.9303  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Cedar Lake Township,
                MN Scott Co. United States  | 
            
                SH 13 (Langford Ave.) / CR 2 (260th St.) (44.57259, -93.50546)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.9429  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | Rural location, intersection of two 55-mph facilities. Previous 2-way stop had 2 fatal crashes and 50 injury crashes in 5 years. Opened to traffic in September 2005. During 12 months after opening, 1 reported crash involving single motorcycle running off road. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Topeka,
                KS Shawnee Co. United States  | 
            
                Rice Rd. / I-70 WB Ramps / Sycamore Dr. (39.03610, -95.62310)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.5293  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2000 | Part of a major realignment of I-70 and K-4. Sycamore Drive is one way with two westbound lanes (into the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework. | 
| 
                Topeka,
                KS Shawnee Co. United States  | 
            
                Rice Rd. / I-70 EB Ramps / Cyprus Drive (39.03190, -95.62320)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 52.8817  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2000 | Part of a major realignment of I-70 and K-4. Cyprus Drive is One Way Eastbound (away from the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework. | 
| 
                Brattleboro,
                VT Windham Co. United States  | 
            
                Rte 9 / Rte 5 (42.88500, -72.55670)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 51.8160  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            1999 | Adjacent to I-89. Heavy truck volume (>7%). | 
| 
                Lakewood,
                CO Jefferson Co. United States  | 
            
                Arbutus Dr. / Red Rocks Community College (39.71903, -105.14840)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 36.7465  | 
            
                Other (At-Grade) Single-Lane  |   
            2001 | Functional Class: Collector ICD estimated from Google Maps linework. | 
| 
                Port St. Lucie,
                FL St. Lucie Co. United States  | 
            
                SE Westmoreland Blvd. / Pine Valley St. (27.25530, -80.30157)  | 
            
                Other Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 72.1975  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Fort Pierce,
                FL St. Lucie Co. United States  | 
            
                Avenue A / N Indian River Dr. (27.44907, -80.32326)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 28.6165  | 
            
                Other (At-Grade) Single-Lane  |   
            1997 | http://www.walkinginfo.org/pedsafe/casestudy.cfm?CS_NUM=14. Year Completed estimated (1994-1999). ICD estimated from Google Maps linework. | 
| 
                Malta,
                NY Saratoga Co. United States  | 
            
                Rte 67 (Dunning St.) / Kelch Dr. / Blacksmith Dr. (Malta Commons) (42.97068, -73.79804)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 50.2920  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2006 | Part of a series of 5 roundabouts. | 
| 
                Arcata,
                CA Humboldt Co. United States  | 
            
                12th St. / I St. (40.87160, -124.08700)  | 
            
                Traffic Calming Circle Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 48.7687  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Goshen,
                CT Litchfield Co. United States  | 
            
                Rte. 4 / Rte. 63 (41.83185, -73.22539)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.9080  | 
            
                Other (At-Grade) Single-Lane  |   
            2002 | Painted splitter islands. | 
| 
                Rochester,
                MI Oakland Co. United States  | 
            
                Tienken Rd. / Runyon Rd. / Washington Rd. (42.69743, -83.11135)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 43.0105  | 
            
                Other (At-Grade) Single-Lane  |   
            1999 | Total cost: $353,000. Completed July 1999. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Arcata,
                CA Humboldt Co. United States  | 
            
                13th St. / J St. (40.87260, -124.08780)  | 
            
                Traffic Calming Circle Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 11.7404  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Greenwich,
                CT Fairfield Co. United States  | 
            
                King St. / Rye Lake Ave. (41.07508, -73.70280)  | 
            
                Roundabout Removed  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | Temporary roundabout installed May 12, 2004. Functional Class: Local. | 
| 
                Madison,
                CT New Haven Co. United States  | 
            
                Rte. 80 / Rte. 79 (41.35976, -72.63807)  | 
            
                Rotary Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 98.6077  | 
            
                Other (At-Grade) Single-Lane  |   
            Old traffic circle converted to yield on entry. ICD estimated from Google Maps linework. | |
| 
                Las Vegas (Summerlin),
                NV Clark Co. United States  | 
            
                Village Center Dr. / Meadow Hills Dr. (36.19350, -115.30070)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 59.4360  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            1991 | Add-lane right-turn bypass lane on north leg. | 
| 
                Fairmont,
                WV Marion Co. United States  | 
            
                WV 273 (State St.) / Haymond St. (39.47601, -80.13599)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 54.8640  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2010 | Detectable warning surfaces along entire length of narrow pedestrian ramp. | 
| 
                East Lansing,
                MI Ingham Co. United States  | 
            
                Bogue St. / Shaw Ln. (42.72575, -84.47185)  | 
            
                Roundabout Removed  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 60.9600  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2014 | Roundabout built in 2000, removal date estimated (2013-2015). | 
| 
                Hartland,
                MI Livingston Co. United States  | 
            
                Hartland Rd. / Rovey Dr. (42.63682, -83.74883)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.6594  | 
            
                Other (At-Grade) Single-Lane  |   
            2009 | ICD estimated from Google Maps linework. | 
| 
                Davis,
                CA Yolo Co. United States  | 
            
                Anderson Rd. / Alvarado Ave. (38.56210, -121.75850)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.2149  | 
            
                Other (At-Grade) Single-Lane  |   
            1997 | Moderate to high pedestrian and bicycle volume. Located in residential area frequented by commuters to University of California at Davis. ICD estimated from Google Maps linework. | 
| 
                New London,
                CT New London Co. United States  | 
            
                Shaw St. / Howard St. / Willets Ave. (41.34284, -72.09972)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 34.9700  | 
            
                Other (At-Grade) Single-Lane  |   
            2000 | ICD estimated from Google Maps linework. | 
| 
                University Place,
                WA Pierce Co. United States  | 
            
                Grandview Dr. / Olympic Blvd. (47.22188, -122.55790)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.1454  | 
            
                Other (At-Grade) Single-Lane  |   
            1997 | Curtis High School and Curtis Junior High School on NE corner of roundabout. Opened August 1997. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Kennewick,
                WA Benton Co. United States  | 
            
                27th Ave. / Union St. / Southridge Blvd / W Creekstone Dr. (46.18497, -119.18040)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 40.5168  | 
            
                Other (At-Grade) Single-Lane  |   
            2000 | Completed August 25, 2000. Right-turn bypass on WB approach. Was 3-leg intersection; fourth leg added to west as part of project. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Seymour,
                CT New Haven Co. United States  | 
            
                Rte. 188 / Rte. 334 (Great Hill Rd.) / Holbrook Rd. (41.37857, -73.12669)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 35.8466  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | Previous traffic circle was upgraded to modern roundabout design guidelines. 21442 | 
| 
                Scottsdale,
                AZ Maricopa Co. United States  | 
            
                N. Marshall Way / E. Main St. (33.49311, -111.92830)  | 
            
                Other Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 22.9083  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Bisbee,
                AZ Cochise Co. United States  | 
            
                Bisbee Rd. / SR 80 / SR 92 (31.42830, -109.89230)  | 
            
                Rotary Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 104.9686  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Kingston,
                NY Ulster Co. United States  | 
            
                I-587 / Rte 28 / I-87 Ramps / Washington Ave. (41.94362, -74.02840)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 60.9600  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max)  |   
            2000 | A 600 ft diameter traffic circle was replaced by 200 ft diameter roundabout. At Exit 19 from I-87. I-587 terminates in roundabout. | 
| 
                Windsor,
                CT Hartford Co. United States  | 
            
                Hayden Station Rd. / Lancaster Dr. / Center St. (41.89280, -72.63409)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 24.8935  | 
            
                Other (At-Grade) Single-Lane  |   
            1998 | Functional Class: Collector. Year Completed estimated (1994-2003). ICD estimated from Google Maps linework. | 
| 
                Manhattan,
                KS Riley Co. United States  | 
            
                Gary Ave. / Candlewood Dr. (39.21087, -96.61885)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 21.2841  | 
            
                Other (At-Grade) Single-Lane  |   
            1997 | Considered to be the First Modern Roundabout in the State of Kansas. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework. | 
| 
                Bend,
                OR Deschutes Co. United States  | 
            
                Brookswood Blvd. / Powers Rd. (44.02886, -121.32130)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 29.1961  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | ICD estimated from Google Maps linework. | 
| 
                Litchfield Park,
                AZ Maricopa Co. United States  | 
            
                W. Palmilla Blvd. / W. Alvarado Dr. (33.46978, -112.35190)  | 
            
                Traffic Calming Circle Existing  | 
            
                Unknown None  | 
            
                4 Approaches 0 Driveways 23.9107  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Moses Lake,
                WA Grant Co. United States  | 
            
                Yonezawa Blvd. / S. Division St. / W. Belmont Ave. (47.10438, -119.27860)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 43.0857  | 
            
                Other (At-Grade) Single-Lane  |   
            2001 | Pedestrian crossing has z-shape, with exit closer to roundabout than entrance. Part of series of 3 roundabouts. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework. | 
| 
                Litchfield Park,
                AZ Maricopa Co. United States  | 
            
                Wigwam Creek Blvd. / N. Rattler Way (33.51643, -112.32870)  | 
            
                Traffic Calming Circle Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 16.9277  | 
            
                Other (At-Grade) Single-Lane  |   
            2004 | ICD estimated from Google Maps linework. | 
| 
                Columbia,
                MD Howard Co. United States  | 
            
                Golden Straw Ln. / Davis Rd. (39.21597, -76.81084)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways  | 
            
                Other (At-Grade) Single-lane w/ Traversable Central Island  |   
            2000 | Completed April 28, 2000. Pedestrian ramps into circulatory roadway. | 
| 
                Lawrence,
                KS Douglas Co. United States  | 
            
                E. 19th St. / Barker Ave. (38.95003, -95.23283)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 16.7188  | 
            
                Other (At-Grade) Single-Lane  |   
            2004 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Boynton Beach,
                FL Palm Beach Co. United States  | 
            
                Hagen Ranch Rd. / Majestic Palm Dr. / Palm Isles Dr. (26.53700, -80.16410)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.4660  | 
            
                Other (At-Grade) Single-Lane  |   
            2004 | ICD estimated from Google Maps linework. | 
| 
                Seattle,
                WA King Co. United States  | 
            
                61st Ave. S / S Norfolk St. (47.51337, -122.25705)  | 
            
                Traffic Calming Circle Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | |
| 
                Truckee,
                CA Nevada Co. United States  | 
            
                Brockway Rd. / Martis Valley Rd. (39.32135, -120.16269)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 39.6240  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | |
| 
                Tampa (Ybor City),
                FL Hillsborough Co. United States  | 
            
                Channelside Dr. / Cumberland Ave. (27.94497, -82.44576)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 54.8640  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            1995 | Right-turn-only lane on north leg. | 
| 
                Lawrence,
                KS Douglas Co. United States  | 
            
                24th Pl. / Inverness Dr. (38.94105, -95.29808)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.0814  | 
            
                Other (At-Grade) Single-Lane  |   
            2001 | Approved by Commission over neighborhood opposition. Was a 3 leg intersection prior to construction. Near Sunflower Elementary School and Southwest Junior High School. Functional Class: Collector ICD estimated from Google Maps linework. | 
| 
                Phoenix,
                AZ Maricopa Co. United States  | 
            
                Pointe Pkwy. / S 48th St. (33.37162, -111.97410)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 39.6240  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2000 | |
| 
                Greeley,
                CO Weld Co. United States  | 
            
                Promontory Cir. / W. 16th St. (40.41505, -104.85090)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.6720  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2004 | 4 roundabouts in series; 6 in vicinity. | 
| 
                Seattle,
                WA King Co. United States  | 
            
                61st Ave. S / S. Cooper St. (47.51166, -122.25710)  | 
            
                Traffic Calming Circle Existing  | 
            
                Uncontrolled Unknown  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | |
| 
                Boynton Beach,
                FL Palm Beach Co. United States  | 
            
                Hagen Ranch Rd. / Treviso Ln. (26.54100, -80.16380)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.6431  | 
            
                Other (At-Grade) Single-Lane  |   
            1999 | ICD estimated from Google Maps linework. | 
| 
                Crozet,
                VA Ablemarle Co. United States  | 
            
                Old Trail Dr. / (unknown #2) (38.05907, -78.71125)  | 
            
                Roundabout Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 30.0923  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | ICD estimated from Google Maps linework. | 
| 
                Ridgeland,
                MS Madison Co. United States  | 
            
                Old Agency Rd / Highland Colony Pkwy (32.43125, -90.14893)  | 
            
                Roundabout Existing  | 
            
                Unknown Unknown  | 
            
                4 Approaches 0 Driveways 47.3786  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2004 | Planned in association with interchange improvements at I-55/Old Agency Rd. Functional Class: Collector ICD estimated from Google Maps linework. | 
| 
                Bend,
                OR Deschutes Co. United States  | 
            
                NW 9th St. / NW Newport Ave. / NW Nashville Ave. (44.06240, -121.32450)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 32.6125  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | Completed in August 2005. Intersection previously had five legs. Roundabout changes one leg prior to the roundabout to right in/out and redirects another leg to the roundabout. Located near Grade School on Newport Avenue. ICD estimated from Google Maps linework. | 
| 
                Fort Worth,
                TX Tarrant Co. United States  | 
            
                Benbrook Circle [US 377 / TX 183 / Camp Bowie Blvd.] (32.71704, -97.44314)  | 
            
                Rotary Existing  | 
            
                Other Unknown  | 
            
                4 Approaches 2 Driveways 304.8000  | 
            
                Other (At-Grade) Multilane (3+ Lane)  |   
            1957 | Oval shape. ICD = 1000 ft x 650 ft. Circulating traffic yields to entering traffic on north leg. |