Roundabouts Database

29465 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
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.
North Pole, AK
Fairbanks North Star
United States 		Badger Rd. / Richardson Hwy WB Ramps
(64.75903, -147.35120) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.5390 		Freeway Ramps (Grade-Separated)
Single-Lane 		2007 Series of three roundabouts. Raindrop-shaped central island. ICD estimated from Google Maps linework.
North Pole, AK
Fairbanks North Star
United States 		Badger Rd. / Richardson Hwy EB Ramps / Santa Claus Ln.
(64.75820, -147.35170) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.5771 		Freeway Ramps (Grade-Separated)
Single-Lane 		2007 Series of three roundabouts. Previously controlled by one-way stop ICD estimated from Google Maps linework.
North Pole, AK
Fairbanks North Star
United States 		Santa Claus Ln. / Park Way
(64.75673, -147.35280) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.6162 		Other (At-Grade)
Single-Lane 		2007 Series of three roundabouts. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Fairbanks, AK
Fairbanks North Star
United States 		Gaffney Rd. / Fort Wainwright Base Entrance Station
(64.83323, -147.69920) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.5999 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 Implemented as security measure for base entrance. Functional Class: Arterial ICD estimated from Google Maps linework.
Newberg, OR
Yamhill Co.
United States 		N Springbrook Rd. / Crestview Dr. / (future leg)
(45.31532, -122.94593) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
55.4306 		Other (At-Grade)
Single-Lane 		2007 Located near Portland and Western railroad crossing. Replaced offset T-intersections. ICD estimated from Google Maps linework.
St. George, UT
Washington Co.
United States 		750 N St. / 2860 E St.
(37.12077, -113.52450) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
29.5218 		Other (At-Grade)
Single-Lane 		2001 Next to school campus. ICD estimated from Google Maps linework.
St. George, UT
Washington Co.
United States 		Main St. / Hope St. (400 N)
(37.11495, -113.58340) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
28.5717 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Washington, UT
Washington Co.
United States 		Camino Real / Silver Falls Dr
(37.10077, -113.49480) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4822 		Other (At-Grade)
Single-Lane 		2006 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.
Washington, UT
Washington Co.
United States 		Coral Canyon Blvd. / Canyon Greens Dr.
(37.16151, -113.44740) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
23.7951 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Rehoboth Beach, DE
Sussex Co.
United States 		Rehoboth Ave. / Grove St.
(38.71501, -75.09075) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.6163 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2003 Yield-controlled right-turn bypass lane on SB approach. Fishhook pavement markings. Heavy bicycle and pedestrian traffic. Extensive queuing with beach-related surges. Functional Class: Arterial ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		E. Ward St. / 28th Ave. E.
(47.62741, -122.29640) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.7327 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Fernley, NV
Lyon Co.
United States 		US 50A / US 95A
(39.60358, -119.22700) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.6907 		Other (At-Grade)
Single-Lane 		2006 Opened August 18, 2006. Functional Class: Arterial ICD estimated from Google Maps linework.
Kalispell, MT
Flathead Co.
United States 		Stillwater Rd. / West Reserve Dr.
(48.24038, -114.35220) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.3853 		Other (At-Grade)
Single-Lane 		2007 First roundabout by Montana DOT. ICD estimated from Google Maps linework.
Mount Horeb, WI
Dane Co.
United States 		Springdale St. / Perimeter St.
(43.01009, -89.72186) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.5667 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Mount Horeb, WI
Dane Co.
United States 		Springdale St. / Brookwood Dr.
(43.00978, -89.71380) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.8068 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Mount Horeb, WI
Dane Co.
United States 		Springdale St. / Telmark Pkwy.
(43.00933, -89.71098) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.6540 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Mount Horeb, WI
Dane Co.
United States 		Springdale St. / Ridgeview Rd. / Lillehammer Ln.
(43.00663, -89.70390) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.4418 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Mount Horeb, WI
Dane Co.
United States 		Springdale St. / STH 78 / STH 92
(43.01007, -89.73044) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.9333 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Madison, WI
Dane Co.
United States 		Thompson Dr. / STH 30 EB Off-Ramp
(43.10506, -89.30066) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.0073 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 Opened October 22, 2004. ICD estimated from Google Maps linework.
Madison, WI
Dane Co.
United States 		Thompson Dr. / STH 30 WB On-Ramp / Commercial Ave.
(43.10643, -89.30084) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.9822 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 Opened October 22, 2004. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		Springmill Rd. / Dorset Rd.
(39.97396, -86.16467) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.6272 		Other (At-Grade)
Single-Lane 		2009 Was originally installed in 2006 as mini-roundabout. There were several property damage accidents at this intersection in the first 10 days of its operation. In that 10 days there was substantial public outcry against the mini. The decision was made and the intersection was returned to a 4-way stop before the mini had been in operation for two weeks. Conversion to single-lane roundabout estimated (2008-2010). Functional Class: Arterial ICD estimated from Google Maps linework.
Spring Grove, PA
York Co.
United States 		Rte. 116 (Hanover St.) / Roths Church Rd. / W. Hanover St.
(39.88301, -76.86363) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.6567 		Other (At-Grade)
Single-Lane 		2007 http://www.yorkdispatch.com/local/ci_6708523 ICD estimated from Google Maps linework.
West Bloomfield Township, MI
Oakland Co.
United States 		W. Maple Rd. / Drake Rd.
(42.54184, -83.39996) 		Roundabout
Existing 		All-Way Yield
Pedestrian Hybrid Beacon (PHB, HAWK) 		4 Approaches
0 Driveways
62.4773 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 Subject of ADA lawsuit. ICD estimated from Google Maps linework.
West Bloomfield Township, MI
Oakland Co.
United States 		W. Maple Rd. / Farmington Rd.
(42.54241, -83.38035) 		Roundabout
Existing 		All-Way Yield
Pedestrian Hybrid Beacon (PHB, HAWK) 		4 Approaches
0 Driveways
62.4767 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		16th Ave. E. / E. Spring St.
(47.61154, -122.31150) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
8.8568 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		15th Ave. E. / E. Spring St.
(47.61155, -122.31280) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
44.2838 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		16th Ave. E. / E. Marion St.
(47.61037, -122.31150) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
9.6621 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		17th Ave. E. / E. Marion St.
(47.61036, -122.31020) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
6.4414 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Ashworth Ave. N / N 137th St.
(47.72868, -122.33970) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
14.4604 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Wallingford Ave. N / N 137th St.
(47.72868, -122.33690) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
12.8537 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Hollymead, VA
Albemarle Co.
United States 		Ashwood Blvd. / Stratford Glen / Chimney Rd.
(38.10672, -78.43133) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
22.5545 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Bedford, VA
Bedford Co.
United States 		London Park Dr. / Meade Rd. / Meadow Down Dr.
(37.30592, -79.33699) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2006 https://www.wdbj7.com/2020/07/28/meade-road-extension-to-be-completed-soon/
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.
Bellingham, WA
Whatcom Co.
United States 		Cordata Pkwy. / Kellogg Rd.
(48.79511, -122.49170) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.3384 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2003 Primary access to Whatcom Community College. Functional Class: Arterial ICD estimated from Google Maps linework.
Jensen Beach, FL
Martin Co.
United States 		SR A1A / SR 732 (Jensen Beach Causeway)
(27.25565, -80.19788) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2005 Yield-controlled right-turn bypass lane on north leg. Posted speed on approaches is 40 mph.