21768 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
Long Beach, CA
Los Angeles Co.
United States
Los Alamitos Circle (Hwy. 1 / Lakewood Blvd. / Los Coyotes Diagonal)
(33.78989, -118.14250)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
137.1600
Other (At-Grade)
Multilane (2 Lane)
1993 Traffic circle conversion. Modified in 2020 to reduce lanes. 21442
Las Vegas (Summerlin), NV
Clark Co.
United States
Town Center Dr. / Hualapai Way
(36.17850, -115.31770)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
70.1040
Other (At-Grade)
Multilane (2 Lane)
1990 Completed March 1990. Modified 2003 to reduce from three-lane entries to two-lane entries with add-lane right-turn bypasses on all legs. ICD estimated from Google Maps linework. 21442
Las Vegas (Summerlin), NV
Clark Co.
United States
Town Center Dr. / Village Center Cir. / Library Hills Dr.
(36.18960, -115.30360)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
91.4400
Other (At-Grade)
Multilane (2 Lane)
1990 Completed March 1990. Modified 2010 to reduce lane configuration. 21442
Vail, CO
Eagle Co.
United States
Vail Rd. / I-70 WB Ramps / North Frontage Rd. / Spraddle Cr. Rd.
(39.64477, -106.37770)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.5760
Other (At-Grade)
Multilane (2 Lane)
1995 Raindrop-shaped central island.
Vail, CO
Eagle Co.
United States
Vail Rd. / I-70 EB Ramps / South Frontage Rd.
(39.64355, -106.37810)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
49.6620
Other (At-Grade)
Multilane (2 Lane)
1995 Completed October 1995. Circular central island. ICD estimated from Google Maps linework.
Towson, MD
Baltimore Co.
United States
MD 45 / MD 146 / Joppa Rd. / Allegheny Ave.
(39.40185, -76.60230)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
47.9892
Other (At-Grade)
Multilane (2 Lane)
1998 Opened October 1998. Exit striping retrofitted to roundabout after opening. Hotdog/racetrack shape. ICD estimated from Google Maps linework. 21442
West Palm Beach, FL
Palm Beach Co.
United States
S. Quadrille Blvd. (El Campeon Blvd.) / Fern St.
(26.71040, -80.05505)
Roundabout
Removed
All-Way Yield
Unknown
4 Approaches
0 Driveways
18.1370
Other (At-Grade)
Multilane (2 Lane)
1997 Replaced with TWSC. Year Completed estimated (1995-1999)/ ICD estimated from Google Maps linework.
Daytona Beach, FL
Volusia Co.
United States
Seabreeze Circle (Seabreeze Bridge / Mason Ave. / Ballough Dr.)
(29.22941, -81.02484)
Rotary
Removed
All-Way Yield
Unknown
0 Approaches
0 Driveways
42.7326
Other (At-Grade)
Multilane (2 Lane)
1997 Replaced with construction of new Seabreeze Bridge. Year Completed estimated (1995-1999). ICD estimated from Google Maps linework.
Lake Worth, FL
Palm Beach Co.
United States
Lake Worth Ave. (SR 802) / A St.
(26.61670, -80.06500)
Roundabout
Existing
All-Way Yield
Pedestrian Signal (red-yellow-green to drivers)
4 Approaches
0 Driveways
42.7103
Other (At-Grade)
Multilane (2 Lane)
2002 ICD estimated from Google Maps linework.
Taneytown, MD
Carroll Co.
United States
MD 140 / MD 832 / Antrim Blvd.
(39.64809, -77.15468)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.4627
Other (At-Grade)
Multilane (2 Lane)
1996 Completed August 1996. Curbs set for double lane, striped for single outer circulating lane. ICD estimated from Google Maps linework.
Addison, TX
Dallas Co.
United States
Addison Cir. / Quorum Dr.
(32.96138, -96.82592)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
54.8640
Other (At-Grade)
Multilane (2 Lane)
1997 .
Sarasota, FL
Sarasota Co.
United States
St. Armands Circle (SR 780 / Blvd. of the Presidents / John Ringling Blvd.)
(27.31842, -82.57722)
Other
Existing
Other
None
5 Approaches
0 Driveways
118.8460
Other (At-Grade)
Multilane (2 Lane)
Shopping district. Completed 1940? Functional Class: Arterial ICD estimated from Google Maps linework.
Hollywood, FL
Broward Co.
United States
Hollywood Blvd. / Rainbow Dr.
(26.01050, -80.18360)
Other
Existing
Two-Way Stop
None
4 Approaches
0 Driveways
165.2974
Other (At-Grade)
Multilane (2 Lane)
Uncontrolled mainline, stop-control on side street Functional Class: Arterial ICD estimated from Google Maps linework.
Hollywood, FL
Broward Co.
United States
Hollywood Blvd. / 26th Ave.
(26.01110, -80.15920)
Signalized Roundabout/Circle
Existing
Signal
None
4 Approaches
0 Driveways
200.7172
Other (At-Grade)
Multilane (2 Lane)
Signal access to parking and building in center of circle. ICD estimated from Google Maps linework.
Hollywood, FL
Broward Co.
United States
Hollywood Blvd. / S. Federal Hwy. (US 1) / Harrison St. / Tyler St.
(26.01150, -80.14300)
Signalized Roundabout/Circle
Existing
Signal
None
7 Approaches
0 Driveways
70.8411
Other (At-Grade)
Multilane (2 Lane)
Signalized access, parking area in central island. ICD estimated from Google Maps linework.
Stuart, FL
Martin Co.
United States
S. Dixie Hwy / SR 76 / SR A1A
(27.19767, -80.25266)
Other
Existing
Other
None
0 Approaches
0 Driveways
26.5569
Other (At-Grade)
Multilane (2 Lane)
Railroad crossing next to circle. ICD estimated from Google Maps linework.
Vail, CO
Eagle Co.
United States
Chamonix Rd. / I-70 WB Ramps / North Frontage Rd.
(39.62828, -106.42120)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
40.4743
Other (At-Grade)
Multilane (2 Lane)
1997 Previously controlled by two-way stop ICD estimated from Google Maps linework.
Vail, CO
Eagle Co.
United States
Chamonix Rd. / I-70 EB Ramps / South Frontage Rd.
(39.62753, -106.42020)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
38.6350
Other (At-Grade)
Multilane (2 Lane)
1997 Previously controlled by two-way stop ICD estimated from Google Maps linework.
Avon, CO
Eagle Co.
United States
Avon Rd. / I-70 WB Ramps
(39.63782, -106.52080)
Roundabout
Existing
All-Way Yield
Active Pedestrian Warning (flashing yellow)
3 Approaches
0 Driveways
33.1108
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
1997 Highway ref. pt. 70-166.62. Raindrop-shaped central island. ICD estimated from Google Maps linework.
Avon, CO
Eagle Co.
United States
Avon Rd. / I-70 EB Ramps
(39.63683, -106.52170)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
36.7903
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
1997 Highway ref. pt. 70-166.62. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Avon, CO
Eagle Co.
United States
Avon Rd. / Beaver Creek Blvd.
(39.63528, -106.52220)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
37.7109
Other (At-Grade)
Multilane (2 Lane)
1997 Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Avon, CO
Eagle Co.
United States
Avon Rd. / Benchmark Rd.
(39.63425, -106.52220)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.7200
Other (At-Grade)
Multilane (2 Lane)
1997 Originally had raindrop shape with locked gate access across south leg for emergency vehicles only. Redesigned and reopened May 2007 with full access. 21442
Avon, CO
Eagle Co.
United States
Avon Rd. / US 6
(39.63110, -106.52260)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.4726
Other (At-Grade)
Multilane (2 Lane)
1997 Highway ref. pt. 6-170.04. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Winston-Salem, NC
Forsyth Co.
United States
Salem Rd. / Old Salem Rd. / S. Main St.
(36.08215, -80.24149)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
49.2265
Other (At-Grade)
Multilane (2 Lane)
2005 TIP Project U-2926. Functional Class: Arterial ICD estimated from Google Maps linework.
Annapolis, MD
Anne Arundel Co.
United States
MD 450 (West St.) / Taylor Ave. / Spa Rd. (Gateway Circle)
(38.97630, -76.50486)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.4954
Other (At-Grade)
Multilane (2 Lane)
1999 Opened December 1999. ICD estimated from Google Maps linework.
De Pere, WI
Brown Co.
United States
Scheuring Rd. (CTH F) / US 41 NB Ramps
(44.43074, -88.10989)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
44.3491
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2011 Series of 6 roundabouts. Opened September 2011. Circular central island. ICD estimated from Google Maps linework.
Santa Barbara, CA
Santa Barbara Co.
United States
Milpas St. / US 101 NB Ramps / Carpinteria St.
(34.42070, -119.67810)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
75.8614
Other (At-Grade)
Multilane (2 Lane)
2000 Oblong central island. Completed April 2000. Experienced one single-vehicle fatality (date unknown). 11861-05. ICD estimated from Google Maps linework.
Cottonwood, AZ
Yavapai Co.
United States
AZ 89A / Verde Heights Dr.
(34.73999, -112.03740)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
50.0532
Other (At-Grade)
Multilane (2 Lane)
2009 Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Oshkosh, WI
Winnebago Co.
United States
CTH E (Witzel Ave.) / Koeller St.
(44.01805, -88.58098)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
42.0845
Other (At-Grade)
Multilane (2 Lane)
2010 Opened September 24, 2010. ICD estimated from Google Maps linework.
Carlsbad, CA
San Diego Co.
United States
Legoland Dr. / Armada Dr.
(33.13229, -117.31660)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
34.0049
Other (At-Grade)
Multilane (2 Lane)
1999 ICD estimated from Google Maps linework.
De Pere, WI
Brown Co.
United States
Scheuring Rd. (CTH F) / US 41 SB Ramps
(44.43050, -88.11402)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
53.7308
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2011 Series of 6 roundabouts. Opened September 2011. ICD estimated from Google Maps linework.
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
37.0085
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
1999 ICD estimated from Google Maps linework.
Mount Rainier, MD
Prince Georges Co.
United States
US 1 / 34th St. / Perry St.
(38.93647, -76.96074)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
30.6570
Other (At-Grade)
Multilane (2 Lane)
2001 Functional Class: Arterial ICD estimated from Google Maps linework.
Lutherville-Timonium, MD
Baltimore Co.
United States
MD 139 (Charles St.) / Bellona Ave.
(39.41790, -76.62900)
Roundabout
Removed
All-Way Yield
None
4 Approaches
0 Driveways
34.1385
Other (At-Grade)
Multilane (2 Lane)
1999 Mini-roundabout. Double-lane circulatory roadway across northern half. Previously controlled by two-way stop Functional Class: Arterial 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
53.3817
Other (At-Grade)
Multilane (2 Lane)
1999 Adjacent to I-89. Heavy truck volume (>7%) 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)
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)
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)
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)
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)
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)
Functional Class: Arterial ICD estimated from Google Maps linework.
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)
ICD estimated from Google Maps linework.
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)
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)
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)
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)
Stop-controlled entries into circle. Bus stop within circulatory roadway. Historical rotary with stop control. ICD estimated from Google Maps linework.
Durango, CO
La Plata Co.
United States
(Mercy Regional Medical Center entrance drive) / (ring road)
(37.23339, -107.82310)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.6431
Other (At-Grade)
Multilane (2 Lane)
2006 Functional Class: Arterial 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
45.7631
Other (At-Grade)
Multilane (2 Lane)
2008 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
41.9470
Other (At-Grade)
Multilane (2 Lane)
2006 Part of a series of 5 roundabouts. 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)
1998 Completed November 1998. Functional Class: Collector ICD estimated from Google Maps linework.
Malta, NY
Saratoga Co.
United States
Rte 67 (Dunning St.) / I-87 SB Ramps
(42.97027, -73.80322)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
44.5689
Other (At-Grade)
Multilane (2 Lane)
2006 Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Malta, NY
Saratoga Co.
United States
Rte 67 (Dunning St.) / US 9
(42.97116, -73.79296)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
43.6943
Other (At-Grade)
Multilane (2 Lane)
2006 Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Malta, NY
Saratoga Co.
United States
Rte 67 (Dunning St.) / Kelch Dr. / Blacksmith Dr. (Malta Commons)
(42.97073, -73.79816)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
42.8207
Other (At-Grade)
Multilane (2 Lane)
2006 Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States
McWhinney Blvd. / Hahns Peak Dr. / Grays Peak Dr.
(40.41048, -105.01140)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
68.2039
Other (At-Grade)
Multilane (2 Lane)
2002 Previously controlled by new Functional Class: Arterial ICD estimated from Google Maps linework.
Fairmont, WV
Marion Co.
United States
WV 273 / Haymond St.
(39.47601, -80.13599)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
47.9383
Other (At-Grade)
Multilane (2 Lane)
2010 Functional Class: Arterial ICD estimated from Google Maps linework.
East Lansing, MI
Ingham Co.
United States
Bogue St. / Shaw Ln.
(42.72575, -84.47185)
Roundabout
Removed
All-Way Yield
None
4 Approaches
0 Driveways
88.6139
Other (At-Grade)
Multilane (2 Lane)
2014 Roundabout built in 2000, removal date estimated (2013-2015). ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV
Clark Co.
United States
Village Center Dr. / Meadow Hills Dr.
(36.19350, -115.30070)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
53.0121
Other (At-Grade)
Multilane (2 Lane)
1991 ICD estimated from Google Maps linework.
Prescott, AZ
Yavapai Co.
United States
SR 89 / Willow Lake Rd.
(34.59233, -112.42580)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
59.9743
Other (At-Grade)
Multilane (2 Lane)
2006 ICD estimated from Google Maps linework.
Kingston, NY
Ulster Co.
United States
I-587 / Rte. 28 / I-87 / Washington Ave.
(41.94362, -74.02840)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
57.7424
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2000 A 600 ft diameter traffic circle was replaced by 200 ft diameter roundabout. At Exit 19 from I-87. I-587 terminates in roundabout. ICD estimated from Google Maps linework.
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)
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)
1999 Modified 2002-2004 to change geometry and striping, and remove fountain. 21442
Anchorage, AK
Anchorage
United States
C St. / O'Malley EB Ramps
(61.12273, -149.88630)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
45.5659
Other (At-Grade)
Multilane (2 Lane)
2006 Functional Class: Arterial ICD estimated from Google Maps linework.
Anchorage, AK
Anchorage
United States
C St. / O'Malley WB Ramps
(61.12404, -149.88630)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
47.2943
Other (At-Grade)
Multilane (2 Lane)
2006 Functional Class: Arterial 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
37.2801
Other (At-Grade)
Multilane (2 Lane)
2004 4 roundabouts in series; 6 in vicinity. 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)
2000 ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States
Pointe Pkwy. / S. 48th St.
(33.37162, -111.97410)
Roundabout
Existing
Unknown
Unknown
4 Approaches
0 Driveways
28.9248
Other (At-Grade)
Multilane (2 Lane)
2000 ICD estimated from Google Maps linework.
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
33.6450
Other (At-Grade)
Multilane (2 Lane)
2004 4 roundabouts in series; 6 in vicinity. ICD estimated from Google Maps linework.
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
33.6468
Other (At-Grade)
Multilane (2 Lane)
2004 4 roundabouts in series; 6 in vicinity. 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
35.4670
Other (At-Grade)
Multilane (2 Lane)
2004 4 roundabouts in series; 6 in vicinity. ICD estimated from Google Maps linework.
Greeley, CO
Weld Co.
United States
W. 18th St. / unknown
(40.41203, -104.85840)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
34.5558
Other (At-Grade)
Multilane (2 Lane)
2004 Part of 6 in vicinity. ICD estimated from Google Maps linework.
Greeley, CO
Weld Co.
United States
W. 16th St. / (unknown)
(40.41524, -104.85540)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
34.5542
Other (At-Grade)
Multilane (2 Lane)
2004 Part of 6 in vicinity. ICD estimated from Google Maps linework.
Lenexa, KS
Johnson Co.
United States
Prairie Star Pkwy / Montecello Rd.
(38.95251, -94.84398)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
52.0123
Other (At-Grade)
Multilane (2 Lane)
2002 Functional Class: Arterial ICD estimated from Google Maps linework.
Fort Worth, TX
Tarrant Co.
United States
Bluebonnet Circle [W Biddson St. / Park Ridge Blvd. / S University Dr.]
(32.69902, -97.36044)
Other
Existing
Unknown
Unknown
6 Approaches
0 Driveways
141.7320
Other (At-Grade)
Multilane (2 Lane)
1929 .
Anchorage, AK
Anchorage
United States
Dowling Rd. / New Seward Hwy SB Ramps
(61.16636, -149.85780)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
35.1352
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2004 Previously controlled by one-way stop ICD estimated from Google Maps linework.
Anchorage, AK
Anchorage
United States
Dowling Rd. / New Seward Hwy NB Ramps
(61.16637, -149.85520)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
38.0151
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2004 Spiral striping. ICD estimated from Google Maps linework.
Astoria, OR
Clatsop Co.
United States
US 101 / Hwy 202 (Nehalem Highway)
(46.18290, -123.86070)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
45.4797
Other (At-Grade)
Multilane (2 Lane)
2002 Opened September 2002. First multilane roundabout on Oregon state highway system. ICD estimated from Google Maps linework.
Monroe, WA
Snohomish Co.
United States
SR 522 EB Ramps / 164th St. SE / Tester Rd.
(47.84863, -122.00580)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
60.9143
Other (At-Grade)
Multilane (2 Lane)
2001 Completed August 2001. This project won the Washington State APWA 2001 Project of the Award and the ASCE Seattle Section 2001 Outstanding Project Award. The Project is documented in the Compendium of Papers for 2000 ITE District 6 Annual Meeting, San Diego, CA. Reconfiguration of two intersections into a roundabout. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Federal Way, WA
King Co.
United States
Weyerhaeuser Way S / 33rd Pl S / 32nd Dr. S
(47.29863, -122.29280)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
35.6385
Other (At-Grade)
Multilane (2 Lane)
2000 Opened April 2000. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Olathe, KS
Johnson Co.
United States
Sheridan Rd. / Rogers Rd.
(38.87200, -94.79430)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
43.7027
Other (At-Grade)
Multilane (2 Lane)
2000 ICD estimated from Google Maps linework.
Park City, UT
Summit Co.
United States
Rte 224 (Deer Valley Drive) / Heber Avenue / Marsac Avenue
(40.64572, -111.49500)
Roundabout
Existing
Unknown
Unknown
4 Approaches
0 Driveways
46.2161
Other (At-Grade)
Multilane (2 Lane)
2000 See: www.Roundaboutsusa.com Information as reported in Salt Lake Tribune article: http://www.sltrib.com/2000/Sep/09142000/utah/22072.htm Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Ridgeland, MS
Madison Co.
United States
Old Agency Rd / Highland Colony Pkwy
(32.43125, -90.14893)
Roundabout
Existing
Unknown
Unknown
4 Approaches
0 Driveways
47.3786
Other (At-Grade)
Multilane (2 Lane)
2004 Planned in association with interchange improvements at I-55/Old Agency Rd. Functional Class: Collector ICD estimated from Google Maps linework.
(unincorporated), CO
Douglas Co.
United States
Ridgegate Pkwy. / Ridgegate Cir. / Commons St.
(39.53187, -104.88300)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
53.4267
Other (At-Grade)
Multilane (2 Lane)
2006 Part of transit-oriented development near future light-rail station ICD estimated from Google Maps linework.
(unincorporated), CO
Douglas Co.
United States
Ridgegate Pkwy. / Ridgegate Cir. / Park Meadows Blvd.
(39.52945, -104.87450)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
54.3498
Other (At-Grade)
Multilane (2 Lane)
2006 Part of transit-oriented development near future light-rail station ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV
Clark Co.
United States
Town Center Dr. / Canyon Run Dr. / Banburry Cross Dr.
(36.18080, -115.31370)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
54.8640
Other (At-Grade)
Multilane (2 Lane)
1995 Completed March 1995. Modified 2003 to reduce from three-lane entries to two-lane entries with add-lane right-turn bypasses on all legs. 21442
Las Vegas (Summerlin), NV
Clark Co.
United States
Desert Primrose Ln. / Desert Marigold Ln. / Blue Willow Ln.
(36.14060, -115.32090)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.5093
Other (At-Grade)
Multilane (2 Lane)
1999 Functional Class: Collector ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV
Clark Co.
United States
Desert Primrose Ln. / Spotted Leaf Ln. / Pavillion Center Dr.
(36.14070, -115.33120)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
41.4737
Other (At-Grade)
Multilane (2 Lane)
1999 Functional Class: Collector ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV
Clark Co.
United States
Havenwood Ave. / Spotted Leaf Ln. / Golden Willow
(36.13300, -115.33040)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
37.6194
Other (At-Grade)
Multilane (2 Lane)
1999 Functional Class: Collector ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV
Clark Co.
United States
Havenwood Ave. / Desert Marigold Ln. / Navajo Willow Ln.
(36.13360, -115.32110)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
39.5483
Other (At-Grade)
Multilane (2 Lane)
2000 Functional Class: Collector. Year Completed estimated (1999-2002). ICD estimated from Google Maps linework.
Scottsdale, AZ
Maricopa Co.
United States
Princess Blvd. / Princess Dr.
(33.64804, -111.91795)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
64.0077
Other (At-Grade)
Multilane (2 Lane)
2007 Completed 1986. Reconfigured in 2007? 21442
Green Bay, WI
Brown Co.
United States
Mason St. (STH 32-STH 54) / S. Taylor St.
(44.52414, -88.07916)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
43.4266
Other (At-Grade)
Multilane (2 Lane)
2012 Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework.
Park City, UT
Summit Co.
United States
Kilby Rd. / Factory Outlet Parking
(40.73040, -111.55040)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
34.3918
Other (At-Grade)
Multilane (2 Lane)
2000 ICD estimated from Google Maps linework.
Orem, UT
Utah Co.
United States
S 800 W / College Dr. / Sandhill Rd. (UVSC South Entrance)
(40.27592, -111.71290)
Roundabout
Existing
Unknown
Unknown
4 Approaches
0 Driveways
36.4480
Other (At-Grade)
Multilane (2 Lane)
1996 ICD estimated from Google Maps linework.
Urbana, MD
Frederick Co.
United States
MD 80 / Sugarloaf Pkwy. / Bennett Creek Blvd.
(39.32467, -77.34974)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
52.6619
Other (At-Grade)
Multilane (2 Lane)
2000 Rural ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States
MD 216 / US 29 SB Ramps
(39.14562, -76.90418)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
53.7228
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2001 Series of 4 roundabouts. ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States
MD 216 / US 29 NB Ramps / Ice Crystal Dr.
(39.14476, -76.89799)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
53.7234
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2001 Series of 4 roundabouts. ICD estimated from Google Maps linework.
Lacey, WA
Thurston Co.
United States
Marvin Rd. / Britton Pkwy.
(47.06905, -122.77090)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
46.3682
Other (At-Grade)
Multilane (2 Lane)
2000 Completed September 14, 2000. Functional Class: Arterial ICD estimated from Google Maps linework.
Duvall, WA
King Co.
United States
SR 203 (Carnation-Duvall Rd.) / 124th St. / Novelty Hill
(47.70910, -121.98440)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.9865
Other (At-Grade)
Multilane (2 Lane)
2004 http://www.wsdot.wa.gov/projects/sr203/NE124thNoveltyRd/ Functional Class: Arterial ICD estimated from Google Maps linework.
Gig Harbor, WA
Pierce Co.
United States
Borgen Blvd. / SR 16 NB Ramps / Burnham Dr.
(47.35843, -122.61260)
Roundabout
Existing
All-Way Yield
None
6 Approaches
0 Driveways
47.7339
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2001 Oval shaped central island. 6 legged configuration includes a on-ramp (outbound)leg. Central island is used as a roadway storm detention pond. Completed Summer/Fall 2001. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Richland, WA
Benton Co.
United States
Steptoe Dr. / SR 240 EB Ramps / Columbia Park Trl.
(46.23893, -119.24546)
Roundabout
Existing
All-Way Yield
Metering Signal
5 Approaches
0 Driveways
49.5635
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2007 5th leg is on-ramp to SR 240. Opened November 2007. Lane configuration reduced in 2016. Modified in 2018 to add metering signal. According to local news (link below) they started metering the traffic on the westbound Columbia Park Trail approach in 2018. It only turns on when traffic coming off the freeway gets backed up. https://97rockonline.com/tri-cities-roundabout-gets-new-metered-traffic-light-wait-what/ 21442
Westfield, NJ
Union Co.
United States
NJ 28 / E. Broad St. (Westfield Circle)
(40.64849, -74.35027)
Rotary
Existing
Unknown
Unknown
3 Approaches
0 Driveways
42.5896
Other (At-Grade)
Multilane (2 Lane)
Functional Class: Arterial ICD estimated from Google Maps linework.