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
Seattle, WA
King Co.
United States 		8th Ave. NE / NE 117th St.
(47.71402, -122.32070) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Seattle, WA
King Co.
United States 		8th Ave. NE / NE 120th St.
(47.71584, -122.32070) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Seattle, WA
King Co.
United States 		8th Ave. NE / NE 123rd St.
(47.71767, -122.32080) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
29.7304 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Beaverton, OR
Washington Co.
United States 		SW Hart Rd. / Sorrento Rd. / Juniper Terr.
(45.46680, -122.80880) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.1283 		Other (At-Grade)
Single-Lane 		Functional Class: Collector. Pedestrian ramps into circulatory roadway. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 24th Ave. / Brazee St.
(45.54050, -122.64110) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		1989 Completed 10/10/1989.
Portland, OR
Multnomah Co.
United States 		NE 24th Ave. / Thompson St.
(45.53896, -122.64110) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
56.8845 		Other (At-Grade)
Single-Lane 		1989 Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 24th Ave. / Tillamook St.
(45.53741, -122.64110) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
56.0495 		Other (At-Grade)
Single-Lane 		1989 Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 21st Ave. / Thompson St.
(45.53898, -122.64420) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
34.2980 		Other (At-Grade)
Single-Lane 		1989 Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 21st Ave. / Brazee St.
(45.54051, -122.64420) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
86.9974 		Other (At-Grade)
Single-Lane 		1989 Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 37th Ave. / Morris St. / Wisteria St.
(45.54467, -122.62500) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
16.7290 		Other (At-Grade)
Single-Lane 		1986 Completed 12/23/1986. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 37th Ave. / Brazee St.
(45.54057, -122.62500) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
119.6213 		Other (At-Grade)
Single-Lane 		1987 Completed 10/16/1987. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 37th Ave. / Thompson St.
(45.53904, -122.62500) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
94.5285 		Other (At-Grade)
Single-Lane 		1987 Completed 11/16/1987. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 32nd Ave. / SE Lincoln St.
(45.50825, -122.63270) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
12.5549 		Other (At-Grade)
Single-Lane 		1990 Completed 4/25/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 30th Ave. / SE Caruthers St.
(45.50550, -122.63470) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
78.6812 		Other (At-Grade)
Single-Lane 		1990 Completed 4/23/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 31st Ave. / SE Clinton St.
(45.50354, -122.63360) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
14.2301 		Other (At-Grade)
Single-Lane 		1990 Completed 6/22/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 23rd Ave. / SE Clinton St.
(45.50339, -122.64260) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
31.8085 		Other (At-Grade)
Single-Lane 		1990 Completed 6/22/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 37th Ave. / SE Lincoln St.
(45.50806, -122.62570) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
15.0659 		Other (At-Grade)
Single-Lane 		1990 Completed 4/25/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 43rd Ave. / SE Lincoln St.
(45.50799, -122.61810) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
22.5989 		Other (At-Grade)
Single-Lane 		1990 Completed 4/23/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 51st Ave. / SE Lincoln St.
(45.50803, -122.61000) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
15.0659 		Other (At-Grade)
Single-Lane 		1990 Completed 4/23/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 55th Ave. (N) / SE Lincoln St.
(45.50806, -122.60650) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		1990 Completed 5/14/1990.
Portland, OR
Multnomah Co.
United States 		SE 55th Ave. (S) / SE Lincoln St.
(45.50804, -122.60610) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		1990 Completed 5/14/1990.
Portland, OR
Multnomah Co.
United States 		SE 58th Ave. (S) / SE Lincoln St.
(45.50805, -122.60380) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
104.6245 		Other (At-Grade)
Single-Lane 		1990 Completed 5/8/1990. ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		26th St. / I St.
(38.57565, -121.47140) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
81.2327 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		24th St. / I St.
(38.57636, -121.47410) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
55.0883 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		24th St. / H St.
(38.57746, -121.47360) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
70.0264 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		26th St. / E St.
(38.58003, -121.46950) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
15.8721 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Peter J Shields Ave. / East Quad
(38.54061, -121.74820) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
16.8150 		Other (At-Grade)
Unknown 		On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Peter J Shields Ave. / West Quad
(38.54028, -121.75010) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
14.9467 		Other (At-Grade)
Single-Lane 		On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		California Ave. / North Quad
(38.54252, -121.75300) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
20.5511 		Other (At-Grade)
Single-Lane 		On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		California Ave. / Storer Mall
(38.54082, -121.75250) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
13.0783 		Other (At-Grade)
Single-Lane 		On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		California Ave. / Hutchison Dr.
(38.53909, -121.75200) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.3015 		Other (At-Grade)
Single-Lane 		On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local. Year Completed unknown (before 1993). ICD estimated from Google Maps linework.
Woodland, CA
Yolo Co.
United States 		Palm Ave. / Keystone Ave.
(38.68635, -121.77050) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
41.0198 		Other (At-Grade)
Single-Lane 		Circular intersection in older neighborhood. ICD estimated from Google Maps linework.
Madison, WI
Dane Co.
United States 		Kendall Ave. / Grand Ave.
(43.07145, -89.43156) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		1997
Madison, WI
Dane Co.
United States 		New Washburn Way / Dandaneau Trl. / Chautauqua Trl.
(43.04669, -89.51501) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
13.9650 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Madison, WI
Dane Co.
United States 		Glenway St. / Hillcrest Dr.
(43.06437, -89.43896) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
11.3433 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
West Roxbury, MA
Suffolk Co.
United States 		W. Roxbury Pkwy. / Lagrange St. / Newton St. / Hammond Pond Pkwy. / Hammond St.
(42.31049, -71.16329) 		Rotary
Existing 		All-Way Yield
Unknown 		5 Approaches
1 Driveways
72.4235 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Retrofitted in 2014 with the pavement markings. ICD estimated from Google Maps linework. Lacks entry deflection on multiple legs, intersection sight distance.
West Roxbury, MA
Suffolk Co.
United States 		W. Roxbury Pkwy. / Grove St.
(42.30330, -71.15137) 		Rotary
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
72.4319 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
West Roxbury, MA
Suffolk Co.
United States 		W. Roxbury Pkwy. / Veterans of Foreign Wars Pkwy.
(42.29649, -71.14560) 		Rotary
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
67.1393 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
West Roxbury, MA
Suffolk Co.
United States 		W. Roxbury Pkwy. / Centre St.
(42.28730, -71.14774) 		Rotary
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
68.9162 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Tumwater, WA
Thurston Co.
United States 		Tumwater Blvd. / New Market St.
(46.97971, -122.91320) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.7052 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Functional Class: Arterial ICD estimated from Google Maps linework.
Medford, OR
Jackson Co.
United States 		Highland Dr. / Siskiyou Blvd.
(42.32110, -122.84986) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2006 Elliptical shaped. ICD = 140 ft x 125 ft. Fire station on south leg.
Yelm, WA
Thurston Co.
United States 		SR 510 / Mud Run Rd. SE
(46.96465, -122.63230) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.8630 		Other (At-Grade)
Single-Lane 		2010 October 2010. ICD estimated from Google Maps linework.
Mendon, NY
Monroe Co.
United States 		NY 65 / NY 251
(42.99061, -77.57766) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.8180 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Springfield, OR
Lane Co.
United States 		Hayden Bridge Way / Pioneer Pkwy. / Wayside Ln.
(44.07090, -123.02880) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		5 Approaches
0 Driveways
52.3441 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 http://www.registerguard.com/news/2006/09/21/a1.roundabout.0921.p1.php?section=cityregion Prior configuration was an offset T with Wayside east of Pioneer Parkway East. M L King Parkway did not exist. ICD estimated from Google Maps linework.
Hilliard, OH
Franklin Co.
United States 		Britton Pkwy. / Hayden Run Rd.
(40.06202, -83.13750) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 ICD = 160 feet in one-lane section, 180 in two-lane section.
Hilliard, OH
Franklin Co.
United States 		Britton Pkwy. / Riggins Rd.
(40.06493, -83.13857) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8637 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2006 Converted from 2x2 roundabout to a 2x1 roundabout in 2020 by changing the EB and WB thru/right lanes to RT only lanes.
Eno, CO
Adams Co.
United States 		Memphis St. / E. 105th Way
(39.88830, -104.79660) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
23.8265 		Other (At-Grade)
Single-Lane 		2006 Functional Class: Local ICD estimated from Google Maps linework.
Eno, CO
Adams Co.
United States 		Memphis St. / E. 106th Pl.
(39.88960, -104.79650) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.6588 		Other (At-Grade)
Single-Lane 		2006 Functional Class: Local ICD estimated from Google Maps linework.
Eno, CO
Adams Co.
United States 		Kittredge St. / E. 105th Ave.
(39.88913, -104.80030) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.2377 		Other (At-Grade)
Single-Lane 		2006 Functional Class: Local ICD estimated from Google Maps linework.
Eno, CO
Adams Co.
United States 		Kittredge St. / E. 107th Ave.
(39.89114, -104.80140) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.3237 		Other (At-Grade)
Single-Lane 		2006 Functional Class: Local ICD estimated from Google Maps linework.
Oshkosh, WI
Winnebago Co.
United States 		Jackson St. / Murdock Ave.
(44.03947, -88.54265) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2010
Seattle, WA
King Co.
United States 		34th Ave. SW / SW Elmgrove St.
(47.53009, -122.37530) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Edmonton, AB
Edmonton Capital Region
Canada 		107th Ave. / 142nd St. NW
(53.55102, -113.56580) 		Rotary
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
81.5992 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		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.