Roundabouts Database

28798 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 		34th Ave. SW / SW Henderson St.
(47.52286, -122.37530) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
42.7458 		Other (At-Grade)
Unknown 		2006 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.
Loveland, CO
Larimer Co.
United States 		Plum Creek Dr. / Piney River Dr.
(40.41253, -105.01850) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.0994 		Other (At-Grade)
Single-Lane 		2001 Functional Class: Local 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.
(unincorporated), OR
Washington Co.
United States 		NW Verboort Rd. / Cornelius-Shefflin Rd.
(45.55150, -123.06410) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
52.6900 		Other (At-Grade)
Single-Lane 		2003 Reverse curves on approaches. Designed as multilane with striped-out inner circulating and entry/exit lanes. ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Linden Ave. N / N. 42nd St.
(47.65774, -122.34850) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
56.3115 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		44th Ave. SW / SW College St.
(47.58301, -122.38780) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
37.0576 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		30th Ave. SW / SW Cloverdale St.
(47.52648, -122.37120) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
64.5176 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
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.
Lawrence, KS
Douglas Co.
United States 		24th Pl. / Crossgate Dr.
(38.94130, -95.28875) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.9392 		Other (At-Grade)
Single-Lane 		2001 Planned in connection with extention of 24th Place Functional Class: Collector ICD estimated from Google Maps linework.
Greeley, CO
Weld Co.
United States 		Promontory Cir. / W 11th St.
(40.41889, -104.84990) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2004 4 roundabouts in series; 6 in vicinity.
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 		42nd Ave. SW / SW Hinds St.
(47.57318, -122.38570) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
9.6690 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Peoria, AZ
Maricopa Co.
United States 		N Sunrise Point / Sunset Point
(33.75294, -112.33084) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
80.7720 		Other (At-Grade)
Single-Lane 		2004
Coral Gables, FL
Miami-Dade Co.
United States 		Sunset Rd (SW 72nd St) / LeJeune Rd (SW 42nd Ave) / Cocoplum Rd / Old Cutler Rd
(25.70536, -80.26083) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
71.0248 		Other (At-Grade)
Single-Lane 		Entering traffic yields to circling traffic Functional Class: Collector ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		E. Cotton Center Blvd. / S. 44th Pl.
(33.40279, -111.98790) 		Other
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
163.5163 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2000 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
Greeley, CO
Weld Co.
United States 		Promontory Cir. / Con Agra Dr.
(40.41138, -104.85200) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2004 4 roundabouts in series; 6 in vicinity.
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.
Greeley, CO
Weld Co.
United States 		Promontory Cir. / W 18th St.
(40.40869, -104.85120) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6717 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2004 4 roundabouts in series; 6 in vicinity.
Seattle, WA
King Co.
United States 		17th Ave. E. / E. Spring St.
(47.61153, -122.31020) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
5.6361 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Crozet, VA
Ablemarle Co.
United States 		Old Trail Dr. / Golf Dr.
(38.05766, -78.71016) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
30.0929 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		40th Ave. SW / SW Manning St.
(47.57122, -122.38250) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
7.2520 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		23rd Ave. / W. Osborn Rd.
(33.48775, -112.10840) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
15.9372 		Other (At-Grade)
Single-Lane 		2005 Small roundabout. ICD estimated from Google Maps linework.
Greeley, CO
Weld Co.
United States 		W 18th St. / Promontory Cir. / (parking)
(40.41203, -104.85840) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2004 Part of 6 in vicinity.
Seattle, WA
King Co.
United States 		28th Ave. NE / NE Hiram Pl. / NE 120th St.
(47.71572, -122.29810) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
164.7289 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		24th Ave. S / S. Dearborn St.
(47.59557, -122.30120) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
13.6919 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		E. Mountain View Rd. / N. Central Ave.
(33.57510, -112.07360) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		0 Approaches
0 Driveways
16.9162 		Other (At-Grade)
Single-Lane 		2006 Mini-roundabout ICD estimated from Google Maps linework.
Manhattan, KS
Riley Co.
United States 		Kimball Ave. / Grand Mere Pkwy.
(39.20168, -96.63786) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.3931 		Other (At-Grade)
Single-Lane 		2000 Completed 3/2000. Built as part of new Colbert Hills Golf Course. Fatal crash January 31, 2010. 11861-05. Functional Class: Collector ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		Sunflower Park Rd / Inverness Dr
(38.93745, -95.29810) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
111.4785 		Other (At-Grade)
Single-Lane 		2001 Next to Sunflower Elementary School and Southwest Junior High School. Functional Class: Collector ICD estimated from Google Maps linework.
Chesterfield, MO
St. Louis Co.
United States 		Schoettler Valley Dr. / Highcroft Dr.
(38.64415, -90.55331) 		Other
Removed 		Unknown
Unknown 		4 Approaches
0 Driveways
17.7235 		Other (At-Grade)
Single-Lane 		1999 Temporary roundabout installed in Fall 1999. Removed September 25, 2000 due to negative public opinion. Intersection returned to AWSC. Functional Class: Local ICD estimated from Google Maps linework.
Greeley, CO
Weld Co.
United States 		Promontory Cir. / W 16th St. / (parking)
(40.41524, -104.85540) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2004 Part of 6 in vicinity.
Hutchinson, KS
Reno Co.
United States 		23rd Ave. / Severence St.
(38.07940, -97.91340) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.7846 		Other (At-Grade)
Single-Lane 		2000 Near the state fairgrounds in Hutchinson Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Garnett, KS
Harvey Co.
United States 		US 59 / US 169
(38.25832, -95.24861) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
46.8910 		Other (At-Grade)
Single-Lane 		2006 None. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
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.
Oviedo, FL
Seminole Co.
United States 		Franklin St. / Geneva Dr. / Division St.
(28.67359, -81.20439) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
34.5795 		Other (At-Grade)
Single-Lane 		2006 Website: http://www.cityofoviedo.net/files/Roundabouts.pdf ICD estimated from Google Maps linework.
Windsor, CT
Hartford Co.
United States 		Hayden Station Rd. / Pond Rd.
(41.89371, -72.64065) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
24.0041 		Other (At-Grade)
Single-Lane 		1998 Functional Class: Collector. Year Completed estimated (1992-2003). ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV
Clark Co.
United States 		Vista Run Dr. / Park Vista Dr.
(36.17820, -115.34610) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
46.2741 		Other (At-Grade)
Single-Lane 		1995 Year completed estimated (1990-1999) ICD estimated from Google Maps linework.
Windsor, CT
Hartford Co.
United States 		Prospect Hill Rd. / Lang Rd.
(41.89153, -72.69762) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
25.7830 		Other (At-Grade)
Single-Lane 		1998 Located at entrance to industrial park. Year Completed estimated (1992-2004). 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.
Clearwater, FL
Pinellas Co.
United States 		SR 60 / Coronado Dr. (SR 699) / Mandalay Ave. / Poinsettia Ave. (Gateway Roundabout)
(27.97752, -82.82709) 		Roundabout
Existing 		All-Way Yield
Metering Signal 		6 Approaches
0 Driveways
68.5587 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1999 Modified 2002-2004 to change geometry and striping, and remove fountain. 21442
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.
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%).
Acworth-Kennesaw, GA
Cobb Co.
United States 		W Sandtown Rd. / Villa Rica Rd.
(33.92703, -84.63775) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2008
Durango, CO
La Plata Co.
United States 		Jenkins Ranch Rd. / Lizard Head (south)
(37.28605, -107.84710) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
24.7061 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Durango, CO
La Plata Co.
United States 		Jenkins Ranch Rd. / Lizard Head (north)
(37.28920, -107.84310) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
27.5556 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
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.
St. Simons, GA
Glynn Co.
United States 		Frederica Rd. / Lawrence Rd.
(31.21650, -81.37550) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
40.8563 		Other (At-Grade)
Single-Lane 		2006 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.
Washington, DC
N/A Co.
United States 		Dupont Circle (Mass Ave. / Conn. Ave. / New Hampshire Ave.19th St. / P St.)
(38.90965, -77.04344) 		Signalized Roundabout/Circle
Existing 		Signal
None 		10 Approaches
0 Driveways
137.5441 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		Washington Circle (Penn. Ave. / New Hampshire Ave. / 23rd St. / K St.)
(38.90252, -77.05010) 		Signalized Roundabout/Circle
Existing 		Signal
None 		8 Approaches
0 Driveways
119.8984 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		Scott Circle (Mass. Ave. / Rhode Isl. Ave. / 16th St. / N St.)
(38.90725, -77.03654) 		Signalized Roundabout/Circle
Existing 		Signal
None 		6 Approaches
0 Driveways
51.1161 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		Logan Circle (Rhode Isl. Ave. / Vermont Ave. / 13th St. / P St.)
(38.90965, -77.02963) 		Signalized Roundabout/Circle
Existing 		Signal
None 		5 Approaches
0 Driveways
120.8157 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		Thomas Circle (Mass Ave. / Vermont Ave. / 14th St. / M St.)
(38.90565, -77.03196) 		Signalized Roundabout/Circle
Existing 		Signal
None 		6 Approaches
0 Driveways
75.2817 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		Sheridan Circle (Mass Ave. / 23rd St. / R St.)
(38.91214, -77.05065) 		Rotary
Existing 		Uncontrolled
None 		0 Approaches
0 Driveways
69.6989 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Functional Class: Arterial ICD estimated from Google Maps linework.
Washington, DC

United States 		Westmoreland Circle (Massachusetts Ave. NW / Dalecarlia Dr. / Western Ave. NW / Butterworth Pl. NW)
(38.94892, -77.10097) 		Rotary
Existing 		All-Way Yield
None 		6 Approaches
0 Driveways
100.5840 		Other (At-Grade)
Multilane (3+ Lane) 		On boundary of DC and Maryland (Western Ave. is the boundary).
Washington, DC
N/A Co.
United States 		Ward Circle (Mass. Ave. / Nebraska Ave.)
(38.93792, -77.08590) 		Signalized Roundabout/Circle
Existing 		Signal
None 		0 Approaches
0 Driveways
80.8214 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Washington, DC

United States 		Chevy Chase Circle (Connecticut Ave. NW / Western Ave. NW / Chevy Chase Pkwy. NW / Grafton St.)
(38.96761, -77.07716) 		Rotary
Existing 		All-Way Yield
None 		7 Approaches
0 Driveways
109.7280 		Other (At-Grade)
Multilane (3+ Lane) 		On boundary between DC and Maryland (Western Ave. is the boundary). Pedestrian access to central island.
Washington, DC
N/A Co.
United States 		Tenley Circle (Nebraska Ave. / Wisconsin Ave. / Yuma St.)
(38.94628, -77.07875) 		Signalized Roundabout/Circle
Existing 		Signal
None 		0 Approaches
0 Driveways
73.3809 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		Sherman Circle (Kansas Ave. / Illinois Ave. / Crittenden St.)
(38.94733, -77.02190) 		Rotary
Existing 		All-Way Stop
None 		6 Approaches
0 Driveways
89.1704 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Functional Class: Arterial ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		Grant Circle (New Hampshire Ave. / Illinois Ave. / Varnum St. / NW 5th St.)
(38.94312, -77.01926) 		Rotary
Existing 		All-Way Stop
None 		8 Approaches
0 Driveways
120.7587 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Functional Class: Arterial 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.
Berkeley, CA
Alameda Co.
United States 		Marin Ave. / Los Angeles Ave. / Del Norte St. / Arlington Ave.
(37.89015, -122.27240) 		Other
Existing 		One-Way/Two-Way Stop
None 		6 Approaches
0 Driveways
25.4489 		Other (At-Grade)
Single-Lane 		Free movement on Marin Ave.; rest are stop-controlled 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.
Arcata, CA
Humboldt Co.
United States 		West End Rd. / Spear Ave. / Saint Louis Rd.
(40.88910, -124.08210) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.0866 		Other (At-Grade)
Single-Lane 		1998 Functional Class: Arterial 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.
Durango, CO
La Plata Co.
United States 		Florida Rd. / Riverview Dr.
(37.28319, -107.86900) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4086 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
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.
Durango, CO
La Plata Co.
United States 		(Mercy Regional Medical Center ring road) / (unknown)
(37.23677, -107.82050) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.2308 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Visalia, CA
Tulare Co.
United States 		Houston Ave. / Santa Fe St. / NE 3rd Ave.
(36.34183, -119.28780) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
50.9874 		Other (At-Grade)
Single-Lane 		2010 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
Portland, OR
Multnomah Co.
United States 		NW 25th Ave. / NW Quimby St.
(45.53328, -122.70277) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
0 Driveways
15.8958 		Other (At-Grade)
Single-Lane 		1988 Completed 9/30/1988. ICD estimated from Google Maps linework.
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.
Port Orchard, WA
Kitsap Co.
United States 		Mile Hill Dr. (Hwy 166) / Bethel Ave.
(47.53467, -122.62730) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.7045 		Other (At-Grade)
Single-Lane 		1998 Previously a Y Intersection. Opened June 1998. 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.) / I-87 NB Ramps
(42.97052, -73.80057) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2006 Painted spiral next to central island. Part of a series of 5 roundabouts.
Modesto, CA
Stanislaus Co.
United States 		La Loma / James St. / G St.
(37.64360, -120.98740) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
34.0452 		Other (At-Grade)
Single-Lane 		1997 Permanent installation with landscaping in place Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Clackamas, OR
Clackamas Co.
United States 		Monterey Ave. / Causey Ave. / William Otty Rd.
(45.44020, -122.55510) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.7102 		Other (At-Grade)
Single-Lane 		2004 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.
Tallahassee, FL
Leon Co.
United States 		Sutor Road / Old Sutor Road
(30.42957, -84.21212) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
16.4770 		Other (At-Grade)
Single-Lane 		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.) / I-87 SB Ramps
(42.97024, -73.80309) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2006 Painted spiral next to central island. Part of a series of 5 roundabouts.
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.