Roundabouts Database

29411 Results

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City, State
County
Country 		Intersection
(Lat, Lng) 		Type
Status 		Control Type / Other Control Type Approaches / Driveways / ICD (m) Functional Class /
LaneType 		Year Completed Comments
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.
Ellicott City, MD
Howard Co.
United States 		MD 104 (Waterloo Rd.) / MD 100 WB Ramps
(39.22470, -76.80600) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		1999
Federalsburg, MD
Caroline Co.
United States 		MD 307 / MD 313 / MD 318
(38.68938, -75.78949) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.4247 		Other (At-Grade)
Single-Lane 		1999 Rural, installed for safety reasons Previously controlled by two-way stop ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Shasta Dr. / Olympic Dr.
(38.55540, -121.77620) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.2833 		Other (At-Grade)
Single-Lane 		1999 Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Denver, CO
Denver Co.
United States 		Chopper Cir. / VIP Parking / 9th St. / Access Rd
(39.74721, -105.00810) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
52.3424 		Other (At-Grade)
Single-Lane 		1999 Located at Pepsi Center arena Functional Class: Collector ICD estimated from Google Maps linework.
Reno, NV
Washoe Co.
United States 		Wedekind Rd. / Clear Acre Ln.
(39.55157, -119.78930) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
23.0222 		Other (At-Grade)
Single-Lane 		1999 Previously controlled by two-way stop ICD estimated from Google Maps linework.
Superior, CO
Boulder Co.
United States 		5th Ave. / Center Dr.
(39.95764, -105.17190) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.1262 		Other (At-Grade)
Single-Lane 		1999 Serves Costco and Target as part of 750,000 square foot shopping center. Functional Class: Local ICD estimated from Google Maps linework.
Eugene, OR
Lane Co.
United States 		N. Terry St. / Roosevelt Blvd.
(44.06371, -123.18825) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
20.5969 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Lakewood, CO
Jefferson Co.
United States 		Allison Pkwy. / Civic Center
(39.70906, -105.08630) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
31.2390 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Carson City, NV
Carson City Co.
United States 		E 5th St. / Fairview Dr.
(39.16090, -119.72790) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		1999
Northglenn, CO
Adams Co.
United States 		Melody Dr. / Kennedy Dr.
(39.89222, -104.99270) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.6541 		Other (At-Grade)
Single-Lane 		1999 Roundabout is single-lane except for NB approach with separate RT lane. ICD estimated from Google Maps linework.
Greenwood Village, CO
Arapahoe Co.
United States 		S. Monaco St. / E. Berry Ave.
(39.61682, -104.91340) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
11.9603 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Greenwood Village, CO
Arapahoe Co.
United States 		S. Monaco St. / E. Dorado Ave.
(39.61319, -104.91350) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
9.2007 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Greenwood Village, CO
Arapahoe Co.
United States 		S. Monaco St. / E. Dorado Pl.
(39.61199, -104.91350) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
11.0410 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Greenwood Village, CO
Arapahoe Co.
United States 		S. Monaco St. / E. Ida Ave.
(39.61082, -104.91350) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
14.7216 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Greenwood Village, CO
Arapahoe Co.
United States 		S. Monaco St. / E. Powers Ave.
(39.61501, -104.91350) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
9.2005 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Greenwood Village, CO
Arapahoe Co.
United States 		S. Monaco St. / E. Prentice Pl.
(39.61977, -104.91350) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
14.7197 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Bloomington, IN
Monroe Co.
United States 		High St. / Winslow Rd. / Rogers Rd.
(39.13631, -86.50819) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.9078 		Other (At-Grade)
Single-Lane 		1999 $497,000 construction cost. ICD estimated from Google Maps linework.
Willimantic, CT
Windham Co.
United States 		Eastern Rd. / (driveway) (ECSU Campus by clock tower)
(41.72001, -72.21691) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.0693 		Other (At-Grade)
Single-Lane 		1999 Not properly signed and painted, but lots of potential for demonstrating this intersection concept. ICD estimated from Google Maps linework.
Bel Air, MD
Harford Co.
United States 		Tollgate Rd. / Wheel Rd.
(39.48999, -76.32914) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.5729 		Other (At-Grade)
Single-Lane 		1999 http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Moore Blvd. / Rockwell Dr.
(38.56830, -121.72630) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.2127 		Other (At-Grade)
Single-Lane 		1999 Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Moore Blvd. / Wright Blvd.
(38.56490, -121.71860) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.2801 		Other (At-Grade)
Single-Lane 		1999 Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Bel Air, MD
Harford Co.
United States 		MD 7 / Holly Oaks Drive
(39.48848, -76.21669) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.1039 		Other (At-Grade)
Single-Lane 		1999 Opened September 1999. ICD estimated from Google Maps linework.
Millington, MD
Kent Co.
United States 		MD 291 / US 301 SB Ramps
(39.26463, -75.86641) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.4393 		Freeway Ramps (Grade-Separated)
Single-Lane 		1999 Opened August 1999. ICD estimated from Google Maps linework.
Millington, MD
Kent Co.
United States 		MD 291 / US 301 NB Ramps
(39.26386, -75.86260) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.6656 		Freeway Ramps (Grade-Separated)
Single-Lane 		1999 Opened August 1999. ICD estimated from Google Maps linework.
Castle Marina, MD
Queen Annes Co.
United States 		MD 18 / Castle Marina Rd.
(38.97871, -76.28938) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.7819 		Other (At-Grade)
Single-Lane 		1999 Previously controlled by two-way stop ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States 		Lineville Rd. (CTH M) / Cardinal Ln. (CTH EB)
(44.59090, -88.08430) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.7684 		Other (At-Grade)
Single-Lane 		1999 Roundabout is near Forest Glen Elementary School, Lineville Intermediate School, and Bay Port High School. Completed October 1999. http://www.co.brown.wi.us/Planning/roundabouts.html Functional Class: Arterial ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States 		Lineville Rd. (CTH M) / Rockwell Ln.
(44.59080, -88.08880) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.0674 		Other (At-Grade)
Single-Lane 		1999 Roundabout is adjacent to Lineville Intermediate School, Middle School, and High School. School did not allow pedestrian crossings prior to roundabout due to unsafe conditions, now allows crossings using crossing guard. Completed October 1999. http://www.co.brown.wi.us/Planning/roundabouts.html Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
St. George, UT
Washington Co.
United States 		Main St. / 200 N St. / Diagonal St.
(37.11152, -113.58350) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
30.4778 		Other (At-Grade)
Single-Lane 		1999 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.
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.
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.
Honolulu, HI
Oahu Co.
United States 		Keeaumoku St. / Heulu St.
(21.30592, -157.83500) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
17.8032 		Other (At-Grade)
Single-Lane 		1999 Urban. ICD estimated from Google Maps linework.
Stillwater, MN
Washington Co.
United States 		Rutherford Rd. / 72nd St. / New England Pl. (School House Circle)
(45.05673, -92.85909) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
55.6830 		Other (At-Grade)
Single-Lane 		1999 Functional Class: Local ICD estimated from Google Maps linework.
New Castle, CO
Garfield Co.
United States 		Castle Valley Blvd. / Pyramid St.
(39.57959, -107.52880) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
33.1386 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
New Castle, CO
Garfield Co.
United States 		Castle Valley Blvd. / (TBD)
(39.57517, -107.52190) 		Roundabout
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
31.2996 		Other (At-Grade)
Single-Lane 		1999 Facilitates U-turns. ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States 		5000 North / Edgewood Dr.
(40.30066, -111.65750) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
19.1282 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Barnstable, MA
Barnstable Co.
United States 		Rte 149 / Race Ln.
(41.68164, -70.40159) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.8676 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Lexington, KY
Fayette Co.
United States 		W Reynolds Rd. / Keithshire Way / Wellington Way
(37.99520, -84.53814) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
62.1196 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1999 Opened between 1997 and 2002. Functional Class: Collector ICD estimated from Google Maps linework.
Jensen Beach, FL
Martin Co.
United States 		SR 707 / Pineapple Dr. / Jensen Beach Causeway
(27.25074, -80.22818) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.7914 		Other (At-Grade)
Single-Lane 		1999 RT only lanes entering roundabout on two approaches. ICD estimated from Google Maps linework.
(unincorporated), FL
Seminole Co.
United States 		Alaqua Lakes Blvd. / Lakeview Oaks Dr. / Ashton Oaks Cove
(28.75415, -81.39022) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
58.6353 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
(unincorporated), FL
Seminole Co.
United States 		Alqua Blvd. / Fernlake Pl.
(28.76020, -81.39994) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
60.7259 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Alpharetta, GA
Fulton Co.
United States 		Rainwater Dr. / (unknown)
(34.06288, -84.28911) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
22.7564 		Other (At-Grade)
Single-Lane 		1999 Functional Class: Local ICD estimated from Google Maps linework.
San Diego, CA
San Diego Co.
United States 		49th St. / Adams Ave. / Euclid Ave. / Loraine Dr.
(32.76279, -117.08910) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
35.1516 		Other (At-Grade)
Single-Lane 		1999 Functional Class: Local ICD estimated from Google Maps linework.
Cincinnati, OH
Hamilton Co.
United States 		Fulton Ave / Eden Park Drive
(39.11472, -84.49347) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.2865 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Carson City, NV
Carson City Co.
United States 		Northridge Dr. / Tablerock Dr.
(39.18460, -119.75685) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.9080 		Other (At-Grade)
Single-Lane 		1999 Year Completed estimated (1994-1999).
Draper, UT
Salt Lake Co.
United States 		Mike Weir Dr. / Sage Hollow Dr. / S Rambling Rd.
(40.49752, -111.84179) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
60.8499 		Other (At-Grade)
Single-Lane 		1999 Partially painted splitter islands on two legs; no splitter islands on third leg. ICD estimated from Google Maps linework.
Camp Springs, MD
Prince George's Co.
United States 		Capital Gateway Dr. / Auth Rd. / Old Soper Rd.
(38.82403, -76.91189) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1999 Unstriped circulatory roadway. Year Completed estimated (1995-2001).
Madison, WI
Dane Co.
United States 		Dayflower Dr. / Starr Grass Dr.
(43.03834, -89.51671) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		1999 Year Completed estimated (before 2000).
West Bend, WI
Washington Co.
United States 		Poplar St. / 6th Ave.
(43.42078, -88.18365) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.8600 		Other (At-Grade)
Single-Lane 		1999 No splitter islands.
Allen, TX
Collin Co.
United States 		Allen High School entrance / (parking)
(33.11043, -96.66008) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
67.0550 		Other (At-Grade)
Single-Lane 		1999 Pedestrian access to central island; parking along circulatory roadway. Elliptical shaped. Located on the Allen High School Campus. ICD = 230 ft x 175 ft.
McKinney, TX
Collin Co.
United States 		Riverbrook Dr. / Silverlake Rd. / Waterfall Dr.
(33.18958, -96.71624) 		Other
Existing 		Other
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		1999 No splitter islands. Two minor approached controlled with Stop Signs.
Germantown, MD
Montgomery Co.
United States 		Germantown Rd. / Watkins Mill Rd. / Blunt Rd.
(39.19058, -77.22492) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		1999 Right-turn bypass lane on north leg. Year Completed estimated (1993-2005).
Saint Lucie West, FL
St. Lucie Co.
United States 		Champions Way / (unknown)
(27.30724, -80.42218) 		Other
Existing 		Uncontrolled
None 		3 Approaches
0 Driveways
31.0896 		Other (At-Grade)
Single-Lane 		1999
Boardman, MI
Grand Traverse Co.
United States 		Webster St. / Franklin St.
(44.76060, -85.61118) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		1999 https://www.record-eagle.com/archives/two-traffic-circles-going-in-this-fall/article_f3f9d4b6-9a9a-5faa-8100-8de9872bbcad.html
Boardman, MI
Grand Traverse Co.
United States 		Webster St. / Wellington St.
(44.76059, -85.61351) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		1999 https://www.record-eagle.com/archives/two-traffic-circles-going-in-this-fall/article_f3f9d4b6-9a9a-5faa-8100-8de9872bbcad.html
Braden River, FL
Manatee Co.
United States 		Glen Eagles Crossing / Warwick Gardens Ln. / Marlow Pl. / Heathfield Ct.
(27.39999, -82.46689) 		Other
Existing 		Unknown
None 		4 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Single-Lane 		1998 Pedestrian crossing within circulatory roadway.
Bradenton, FL
Manatee Co.
United States 		96th St. E / 51st Terrace E
(27.44937, -82.44575) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		1998 No splitter islands on east and west legs. Large undefined areas on north and south legs.
Marriottsville, MD
Howard Co.
United States 		Sand Hill Rd. / Sand Hill Manor Dr. / Mount View Rd.
(39.31018, -76.93043) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-2002).
Buck Lake, FL
Leon Co.
United States 		Pedrick Rd. / Easton Glen Dr. / Countryside Dr.
(30.45227, -84.18178) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.8600 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1994-1999).
Spring Hill, FL
Hernando Co.
United States 		Wexford Blvd. / Billingham Blvd.
(28.44547, -82.53505) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
73.1520 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1995-1998).
Chesapeake, VA
Chesapeake City
United States 		Warrington Blvd. / Great Marsh Ave.
(36.74283, -76.21173) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		1998 Unstriped circulatory roadway. Year Completed estimated (1994-2002).
Ellicott City, MD
Howard Co.
United States 		Lancelot Cross / Butterfruit Way / Argent Path / Stardust Ln.
(39.28522, -76.90384) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
57.9120 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-2002).
Prince Frederick, MD
Calvert Co.
United States 		Prince Frederick Blvd. / Chapline Place Blvd.
(38.55239, -76.59551) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-2003). Initially constructed as two-lane roundabout with concentric striped circulatory roadway. Converted to single-lane roundabout 2007-2009.
Gaithersburg, MD
Montgomery Co.
United States 		Washingtonian Blvd. / Rio Blvd.
(39.11678, -77.20122) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1998 Year Completed estimated (1993-2002).
Gaithersburg, MD
Montgomery Co.
United States 		Washingtonian Blvd. / Washington Blvd.
(39.11773, -77.20314) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1998 Year Completed estimated (1993-2002).
Severna Park, MD
Anne Arundel Co.
United States 		East West Blvd. / Jumpers Hole Rd. / Adler Ct.
(39.10765, -76.58306) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
65.5320 		Other (At-Grade)
Single-Lane 		1998 Elliptical shape. ICD 225 ft x 200 ft. Year Completed estimated (1994-2002).
Aurora, ON
York
Canada 		Hollandview Trl. / Woodruff Crescent / Hollidge Blvd.
(44.01096, -79.45395) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.0000 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1996-2002).
Aurora, ON
York
Canada 		Hollidge Blvd. / John West Way
(44.01147, -79.45102) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.0000 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1996-2002).
West Jordan, UT
Salt Lake Co.
United States 		S Cobble Ridge Dr. / W Castle Pines Way
(40.62410, -111.98247) 		Other
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
26.2883 		Other (At-Grade)
Single-Lane 		1998 No splitter islands; unmarked pedestrian crossings through circulatory roadway. ICD estimated from Google Maps linework.
Houston, TX
Harris Co.
United States 		Westwood Dr. / Huge Oaks St.
(29.79887, -95.49113) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.8120 		Other (At-Grade)
Single-Lane 		1998 Implemented as part of a larger neighborhood street reconstruction project that incorporated systematic traffic calming elements.
Houston, TX
Harris Co.
United States 		Westwood Dr. / Pine Chase Dr.
(29.79887, -95.48897) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.8120 		Other (At-Grade)
Single-Lane 		1998 Implemented as part of a larger neighborhood street reconstruction project that incorporated systematic traffic calming elements.
Hamilton, ON
Hamilton
Canada 		Stonehenge Dr. / Thoroughbred Blvd.
(43.21655, -79.95150) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.0000 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (before 2004).
Mount Pleasant, SC
Charleston Co.
United States 		Park West Blvd. / Professional Ln. / (parking)
(32.87348, -79.77707) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
59.4360 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1998 Year Completed estimated (1995-1999).
Mount Pleasant, SC
Charleston Co.
United States 		Mathis Ferry Rd. / Shelmore Blvd.
(32.81177, -79.87913) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.1021 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
(unincorporated), GA
Gwinnett Co.
United States 		Meadow Park Dr. / Meadow Park Ln. / Meadow Bluff Ln. / Dovecote Trl.
(34.06361, -84.10306) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
75.1945 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
(unincorporated), FL
Brevard Co.
United States 		Weatherwood Dr. / Adelaide Dr. / Woodhall Cir.
(28.28324, -80.72941) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.0698 		Other (At-Grade)
Single-Lane 		1998 Painted splitter islands. ICD estimated from Google Maps linework.
Boca Raton, FL
Palm Beach Co.
United States 		SE 5th Ave. / SE 3rd St.
(26.34535, -80.07758) 		Other
Existing 		Other
Unknown 		3 Approaches
0 Driveways
28.8976 		Other (At-Grade)
Single-Lane 		1998 Previously controlled by circle ICD estimated from Google Maps linework.
Jacksonville, FL
Duval Co.
United States 		Southside Blvd. SB Ramp / Southside Blvd. Service Rd. / Como Lake Dr.
(30.21216, -81.55235) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
34.0593 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Tallahassee, FL
Leon Co.
United States 		Heritage Park / Piney Z Plantation Rd.
(30.43901, -84.19810) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0102 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Tallahassee, FL
Leon Co.
United States 		Kerry Forest Pkwy. / Shannon Lakes Dr.
(30.53631, -84.21499) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.6597 		Other (At-Grade)
Single-Lane 		1998 Right turn bypass lane with acceleration lane. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Windsor Mill, MD
Baltimore Co.
United States 		Lord Baltimore Dr. / Wildlife Dr.
(39.31993, -76.75019) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
14.7833 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-2002). ICD estimated from Google Maps linework.
Windsor Mill, MD
Baltimore Co.
United States 		Lord Baltimore Dr. / Glen Spring Rd. / Kettle Ct.
(39.31750, -76.75152) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
17.5558 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-2002). ICD estimated from Google Maps linework.
Liberty Township, OH
Butler Co.
United States 		Hughes Woods Ln. / Hughes Ridge Ln.
(39.39099, -84.40464) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
43.3818 		Other (At-Grade)
Single-Lane 		1998 No splitter islands. ICD estimated from Google Maps linework.
Springboro, OH
Warren Co.
United States 		Settlers Walk Blvd. / Remick Blvd. / Stolle Dr.
(39.57782, -84.21781) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
64.4378 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Brighton, CO
Adams Co.
United States 		Goshawk St. / Tanager St.
(39.97816, -104.74840) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.7104 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Brighton, CO
Adams Co.
United States 		Goshawk St. / Crane St.
(39.97920, -104.74729) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.7101 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Brighton, CO
Adams Co.
United States 		Golden Eagle Pkwy. / Heron St.
(39.97720, -104.74991) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
89.6910 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Brighton, CO
Adams Co.
United States 		Goshawk St. / Goshawk Ct. / Heron Ln.
(39.97633, -104.74956) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
58.5745 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Brighton, CO
Adams Co.
United States 		Golden Eagle Pkwy. / Tanager St.
(39.97858, -104.74845) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
84.1980 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Brighton, CO
Adams Co.
United States 		Golden Eagle Pkwy. / Crane St. / Southern St.
(39.97963, -104.74733) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
96.0941 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Brighton, CO
Adams Co.
United States 		Nighthawk Pkwy. / Crane St.
(39.98134, -104.74878) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
65.8914 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Brighton, CO
Adams Co.
United States 		Nighthawk Pkwy. / Heron St.
(39.98132, -104.75076) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
96.0917 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
(unincorporated), CO
Douglas Co.
United States 		Fox Sparrow Rd. / Windhaven Dr.
(39.43781, -104.73199) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.7495 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Gaithersburg, MD
Montgomery Co.
United States 		Winter Walk Dr. / Highland Ridge Ave.
(39.12807, -77.22692) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.2800 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-2002). Was cul-de-sac prior to addition of two more legs. ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Rockhurst Blvd. / University Park Blvd.
(38.91005, -104.78980) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
21.3750 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Abingdon, MD
Harford Co.
United States 		Tollgate Rd. / Singer Rd.
(39.47828, -76.32727) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.8121 		Other (At-Grade)
Single-Lane 		1998 http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States 		1700 North / 1730 North / 1500 West
(40.25650, -111.68530) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.4324 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States 		1730 North / 1740 West
(40.25703, -111.68890) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.3437 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Denver, CO
Denver Co.
United States 		E. Lowry Blvd. / E Fairmount Dr. / Rampart Way
(39.71718, -104.89580) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.6091 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1998 ICD estimated from Google Maps linework.