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
The Villages, FL
Sumter Co.
United States 		Morse Blvd. / El Camino Real / Paige Pl.
(28.94803, -81.95540) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
68.9771 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1998 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Interlake Ave. N / N 39th St.
(47.65411, -122.34130) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
14.4811 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Killingworth, CT
Middledex Co.
United States 		Rte. 80 / Rte. 81
(41.35801, -72.56517) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		1997 First rotary modification in Connecticut. 21442
North Stonington, CT
New London Co.
United States 		Rte 2 / Rte 184
(41.42439, -71.86039) 		Rotary
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
103.6320 		Other (At-Grade)
Single-Lane 		Yield signs added 1999?
New Castle, CO
Garfield Co.
United States 		Castle Valley Blvd. / Pyramid St.
(39.57959, -107.52880) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
33.1386 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
New Castle, CO
Garfield Co.
United States 		Castle Valley Blvd. / (TBD)
(39.57517, -107.52190) 		Roundabout
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
31.2996 		Other (At-Grade)
Single-Lane 		1999 Facilitates U-turns. ICD estimated from Google Maps linework.
Lakewood, CO
Jefferson Co.
United States 		S. Allison Pkwy. / W. Virginia Ave.
(39.70705, -105.08390) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
1 Driveways
33.9964 		Other (At-Grade)
Single-Lane 		2000 Functional Class: Local ICD estimated from Google Maps linework.
Westminster, CO
Adams Co.
United States 		Promenade Dr. S. / (TBD)
(39.89188, -105.06330) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
20.1598 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Oskaloosa, IA
Mahaska Co.
United States 		Hwy 432 / Old Hwy 163 / Pella Ave. / Orchard Ave.
(41.30376, -92.66716) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.8882 		Other (At-Grade)
Single-Lane 		2004 Completed April 2004. Site has sunken hole in central island with tunnels for bike path that passes under circulatory roadway. Experienced two single-vehicle crashes into sunken central island (alcohol-related). ICD estimated from Google Maps linework.
Newton, KS
Harvey Co.
United States 		First St. / I-135 Ramps
(38.04250, -97.32240) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
65.8419 		Freeway Ramps (Grade-Separated)
Single-Lane 		2003 Single-point interchange. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Overland Park, KS
Johnson Co.
United States 		W. 141st St. / Bluejacket St.
(38.87130, -94.71130) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.6150 		Other (At-Grade)
Single-Lane 		2001 Functional Class: Local ICD estimated from Google Maps linework.
Duxbury, MA
Plymouth Co.
United States 		Lincoln St. / Congress St.
(42.05532, -70.72294) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
21.2829 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Hanover, MD
Anne Arundel Co.
United States 		Arundel Mills Blvd. / MD 295 NB Ramps
(39.15573, -76.74459) 		Roundabout
Removed 		All-Way Yield
None 		3 Approaches
0 Driveways
26.8575 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2002 ICD estimated from Google Maps linework. Replaced with DDI
Hanover, MD
Anne Arundel Co.
United States 		Arundel Mills Blvd. / MD 295 SB Ramps
(39.15677, -76.74617) 		Roundabout
Removed 		All-Way Yield
None 		2 Approaches
0 Driveways
66.6796 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2002 ICD estimated from Google Maps linework. Replaced with DDI.
Jessup, MD
Howard Co.
United States 		Canine Rd. / MD 32 EB Ramps
(39.10101, -76.76953) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.0005 		Freeway Ramps (Grade-Separated)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Mount Aetna, MD
Washington Co.
United States 		MD 66 (Mapleville Rd.) / Mount Aetna Rd.
(39.60243, -77.62425) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.1703 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States 		Hopkins-Gorman Rd. / US 29 NB Ramps
(39.15846, -76.88660) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
59.2695 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 ICD estimated from Google Maps linework.
Medford, MN
Steele Co.
United States 		CR 12 / I-35 SB Ramps
(44.17364, -93.26057) 		Roundabout
Existing 		All-Way Yield
None 		6 Approaches
0 Driveways
67.6722 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Maplewood, MN
Ramsey Co.
United States 		Frost Ave. / English St.
(44.99927, -93.04572) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.5374 		Other (At-Grade)
Single-Lane 		2002 Completed October 2002. Twenty-year ADT is 15,000. ICD estimated from Google Maps linework.
Stillwater, MN
Washington Co.
United States 		Rutherford Rd. / 72nd St. / New England Pl. (School House Circle)
(45.05673, -92.85909) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
55.6830 		Other (At-Grade)
Single-Lane 		1999 Functional Class: Local ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Ashworth Ave. N / N 38th St.
(47.65269, -122.34020) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
160.1009 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Rochester, MN
Olmsted Co.
United States 		College Dr. SE / College Pkwy. SE (north)
(44.01949, -92.42918) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Single-Lane 		2000
Rochester, MN
Olmsted Co.
United States 		UCR Dr. SE / Ucr Pkwy SE (south)
(44.01538, -92.43011) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
46.3809 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Blair, NE
Washington Co.
United States 		NE 133 / US 30
(41.51842, -96.14633) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1353 		Other (At-Grade)
Single-Lane 		2004 Opened November 4, 2004. Right-turn bypass lanes on all three approaches. http://www.nebraskatransportation.org/roadrunner/docs/archives/Dec04Jan05.pdf ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NE 15th St. / Bear Creek Rd.
(44.05150, -121.28400) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.9018 		Other (At-Grade)
Single-Lane 		2005 Near elementary school. Crossing guard operation. ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW Awbrey Rd. / NW Sonora Dr.
(44.07240, -121.31750) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.0262 		Other (At-Grade)
Single-Lane 		Older design. Fourth leg is stub. ICD estimated from Google Maps linework.
Draper, UT
Salt Lake Co.
United States 		Vestry Rd. / Rocky Mouth Ln.
(40.48996, -111.87390) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
57.2236 		Other (At-Grade)
Single-Lane 		1996 ICD estimated from Google Maps linework.
Orem, UT
Utah Co.
United States 		E 850 North / N Palisade Dr.
(40.31273, -111.66490) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.4997 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Burke Ave. N / N 35th St.
(47.64919, -122.33510) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
9.6550 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Lindon, UT
Utah Co.
United States 		400 South / 600 West (Lindon Park Circle)
(40.33034, -111.73140) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
33.6873 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 Date estimated. ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States 		1730 North / 1740 West
(40.25703, -111.68890) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.3437 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Promenade Dr. / Royal Pine Dr.
(38.96891, -104.74860) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.2859 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States 		700 East / Center St.
(40.23369, -111.64660) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.9119 		Other (At-Grade)
Single-Lane 		1996 ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States 		1700 North / 1730 North / 1500 West
(40.25650, -111.68530) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.4324 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States 		300 North / Seven Peaks Blvd.
(40.23737, -111.63750) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.7337 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1997 ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States 		5000 North / Edgewood Dr.
(40.30066, -111.65750) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
19.1282 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States 		Veterans Pkwy. / Edgewood Dr. (Shops at Riverwoods)
(40.29899, -111.65785) 		Other
Removed 		All-Way Yield
None 		3 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2010 Initially constructed 1999. Converted 2010-2011 into pedestrian use only as part of outdoor mall.
Latham, NY
Albany Co.
United States 		Latham Circle: Rte 2 / Rte 9
(42.74810, -73.76098) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
76.2000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2002
Nashua, NH
Hillsborough Co.
United States 		SR 130 (Broad St.) / Coburn Ave. / Chuck Drudging Dr.
(42.75617, -71.51653) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.0619 		Other (At-Grade)
Single-Lane 		2002 Entrance to north high school, very heavy traffic in AM peak. ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		25th Ave. S / S Dearborn St.
(47.59556, -122.30010) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		0 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2006
Seattle, WA
King Co.
United States 		26th Ave. S / S. Dearborn St.
(47.59555, -122.29880) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
48.3244 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW Mt. Washington Dr. / NW Skyliners Rd.
(44.05369, -121.35490) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.3425 		Other (At-Grade)
Single-Lane 		2005 Roundabout constructed with addition of south leg. ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW Shevlin Park Rd. / Newport Ave. / College Way
(44.06240, -121.33770) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.6125 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW Mt. Washington Dr. / Shevlin Park Rd.
(44.06780, -121.35530) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.7584 		Other (At-Grade)
Single-Lane 		2000 South leg on Mt. Washington Drive added as part of new development. ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW Mt. Washington Dr. / NW Crossing Dr.
(44.05890, -121.35670) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.6144 		Other (At-Grade)
Single-Lane 		2000 Both roadways brand new as part of new development. ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		SW Century Dr. / SW Mt. Washington Dr. / SW Reed Market Dr.
(44.03860, -121.33590) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
57.9120 		Other (At-Grade)
Single-Lane 		2001 Roundabout sized for ultimate conversion to double lane.
Bend, OR
Deschutes Co.
United States 		SW 14th St. / SW Century Dr. / SW Simpson Ave.
(44.04790, -121.33160) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.9036 		Other (At-Grade)
Single-Lane 		2002 Driveways located between crosswalk and circulatory roadway on both sides of west leg. ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW 14th St. / NW Galveston Ave.
(44.05660, -121.33180) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.8991 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW 14th St. / Newport Ave.
(44.06230, -121.33170) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.6126 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW 9th St. / NW Newport Ave. / NW Nashville Ave.
(44.06240, -121.32450) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.6125 		Other (At-Grade)
Single-Lane 		2005 Completed in August 2005. Intersection previously had five legs. Roundabout changes one leg prior to the roundabout to right in/out and redirects another leg to the roundabout. Located near Grade School on Newport Avenue. ICD estimated from Google Maps linework.
Fort Worth, TX
Tarrant Co.
United States 		Benbrook Circle [US 377 / TX 183 / Camp Bowie Blvd.]
(32.71704, -97.44314) 		Rotary
Existing 		Other
Unknown 		4 Approaches
2 Driveways
304.8000 		Other (At-Grade)
Multilane (3+ Lane) 		1957 Oval shape. ICD = 1000 ft x 650 ft. Circulating traffic yields to entering traffic on north leg.
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, unspecified) 		1929 .
Portland, OR
Multnomah Co.
United States 		SW Terwilliger Blvd. / SW Palater Rd.
(45.45290, -122.67660) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2002 Roundabout replaces existing Y-intersection, adds fourth leg to serve college law school. Includes driveway into roundabout serving two homes. Roundabout is on tilted plane with central island plane steeper than inscribed circle plane to manage cross slopes. Northeast leg (Palater Road) has 8-9 percent grade down into roundabout, then flattens using a short vertical curve to a zero percent crown at the top of the circulatory roadway. Maximum grade through the roundabout is 4 percent; maximum cross slope is -2 percent. First roundabout under City of Portland jurisdiction.
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, unspecified) 		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, unspecified) 		2004 Spiral striping. ICD estimated from Google Maps linework.
Culloden, GA
Monroe Co.
United States 		SR 7-US 341 / SR 74
(32.87954, -84.09019) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.1175 		Other (At-Grade)
Single-Lane 		2008 Functional Class: Rural ICD estimated from Google Maps linework.
Bayfield, CO
La Plata Co.
United States 		CR 501 / Bayfield Center Dr.
(37.23393, -107.60191) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2001 Bayfield Center Drive is a new roadway. Completed Fall 2001.
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, unspecified) 		2002 Opened September 2002. First multilane roundabout on Oregon state highway system. ICD estimated from Google Maps linework.
Claremont, CA
Los Angeles Co.
United States 		Indian Hill Blvd. / Bonita St.
(34.09662, -117.71930) 		Roundabout
Removed 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		2000 Temporary roundabout installed in August 1999, removed in April 2000. Strong public negative opinion cited as reason for removal. (Westernite, July-August 2000, pp. 2-3)
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, unspecified) 		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.
Buffalo, NY
Erie Co.
United States 		Gates Circle (Delaware Ave. / Lafayette Ave.)
(42.92054, -78.86776) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
66.4699 		Other (At-Grade)
Unknown 		2002 Modified in 2002 to incorporate roundabout principles. ICD estimated from Google Maps linework. 21442
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, unspecified) 		2000 Opened April 2000. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Orange, CA
Orange Co.
United States 		Chapman Ave. / Glassell St.
(33.78788, -117.85310) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
70.4752 		Other (At-Grade)
Single-Lane 		Old school traffic circle, pedestrian park in the middle, cars park along the sides. 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, unspecified) 		2000 ICD estimated from Google Maps linework.
Olathe, KS
Johnson Co.
United States 		Sheridan Rd. / Ridgeview Rd. / Dennis Ave.
(38.87270, -94.79730) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.3160 		Other (At-Grade)
Single-Lane 		2001 Completed April 2001. ICD estimated from Google Maps linework.
Olathe, KS
Johnson Co.
United States 		Sheridan Rd. / Clairborne Rd.
(38.87020, -94.79250) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.3168 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Parkville, MO
Platte Co.
United States 		MO 45 (Tom Watson Pkwy.) / National Dr.
(39.21016, -94.70027) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.1210 		Other (At-Grade)
Single-Lane 		2000 Functional Class: Arterial 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, unspecified) 		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.
Maplewood, MN
Ramsey Co.
United States 		Kennard St. / Legacy Pkwy.
(45.03317, -93.03062) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.1373 		Other (At-Grade)
Single-Lane 		2004 Site has RT pavement arrows at entrance line. ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		Aviano Way / (unknown)
(33.68941, -111.99350) 		Rotary
Existing 		All-Way Yield
None 		0 Approaches
0 Driveways
79.4999 		Other (At-Grade)
Single-Lane 		Mini-roundabout. Completed 2005. 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, unspecified) 		2004 Planned in association with interchange improvements at I-55/Old Agency Rd. Functional Class: Collector ICD estimated from Google Maps linework.
Lewisville, NC
Forsyth Co.
United States 		Concord Church Rd. / US 421 SB Ramp / Williams Rd.
(36.08978, -80.43072) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.9191 		Freeway Ramps (Grade-Separated)
Single-Lane 		2000 Solved capacity problem. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Clemmons, NC
Forsyth Co.
United States 		Fraternity Church Rd. / Hope Church Rd.
(36.02653, -80.34301) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.0113 		Other (At-Grade)
Single-Lane 		1999 Existing three-legged intersection converted to a four-legged intersection by adding new Clemmons Middle School driveway at the roundabout. Previously controlled by one-way stop Functional Class: Local 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, unspecified) 		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, unspecified) 		2006 Part of transit-oriented development near future light-rail station ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		S. Melon Ln. / W. Country Place Blvd.
(33.41839, -112.27850) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
2 Driveways
23.9249 		Other (At-Grade)
Single-Lane 		2004 Painted splitter islands. Functional Class: Local ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		Monterey Way / Peterson Rd.
(38.98607, -95.28841) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.8505 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		26th Ave. S / S. Judkins St.
(47.59209, -122.29900) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
20.9420 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Tulsa, OK
Tulsa Co.
United States 		E. Admiral Pl. / Mingo Rd.
(36.16057, -95.86876) 		Rotary
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
114.7468 		Other (At-Grade)
Single-Lane 		Functional Class: Arterial ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		Wanamaker Rd. / SW 6th Ave.
(39.05662, -95.76134) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.7180 		Other (At-Grade)
Single-Lane 		2004 Intersection expanded for new development. Previously T with 6th controlled by stop sign. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		45th St. / Croco Rd.
(38.98618, -95.61436) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
46.4174 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		24th Ave. S / S. Norman St.
(47.59301, -122.30120) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
41.0778 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		South 20th Drive. / (none)
(33.37556, -112.10290) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
16.9552 		Other (At-Grade)
Single-Lane 		2003 Neighborhood traffic calming. 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, unspecified) 		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, unspecified) 		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, unspecified) 		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, unspecified) 		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, unspecified) 		2000 Functional Class: Collector. Year Completed estimated (1999-2002). ICD estimated from Google Maps linework.
Henderson (Seven Hills), NV
Clark Co.
United States 		Grand Hills Dr. / Rio Secoo Golf Club
(35.97713, -115.11100) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
74.4214 		Other (At-Grade)
Single-Lane 		1998 Functional Class: Collector ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		SW 29th St. / Urish Rd.
(39.01446, -95.78102) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2001 Completed July 2001 as single-lane roundabout. Retail shopping center on SW corner. Converted to partial double-lane roundabout 2010. 21442
Gordonsville, VA
Orange Co.
United States 		James Madison Hwy / N. Main St. / Spotswood Trl.
(38.14261, -78.18947) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
31.9366 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States 		Lineville Rd. (CTH M) / Cardinal Ln. (CTH EB)
(44.59090, -88.08430) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.7684 		Other (At-Grade)
Single-Lane 		1999 Roundabout is near Forest Glen Elementary School, Lineville Intermediate School, and Bay Port High School. Completed October 1999. http://www.co.brown.wi.us/Planning/roundabouts.html Functional Class: Arterial ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States 		Lineville Rd. (CTH M) / Rockwell Ln.
(44.59080, -88.08880) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.0674 		Other (At-Grade)
Single-Lane 		1999 Roundabout is adjacent to Lineville Intermediate School, Middle School, and High School. School did not allow pedestrian crossings prior to roundabout due to unsafe conditions, now allows crossings using crossing guard. Completed October 1999. http://www.co.brown.wi.us/Planning/roundabouts.html Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Scottsdale, AZ
Maricopa Co.
United States 		Princess Blvd. / Princess Dr.
(33.64804, -111.91795) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
64.0077 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		1986 Painted spiral next to central island. Completed 1986. Reconfigured in 2007? 21442
Salt Lake City, UT
Salt Lake Co.
United States 		South Campus Dr. / Center Campus Dr.
(40.75968, -111.84490) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling all approaches) 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2003 Light rail runs through center of roundabout. Gates on both circulatory roadway and on east and west approaches.
Alpine, UT
Utah Co.
United States 		Canyon Crest Rd. / 200 West
(40.45012, -111.78150) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.3540 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
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, unspecified) 		2012 Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework.
Green Bay, WI
Brown Co.
United States 		Shawano Ave. (STH 29) / Taylor St.
(44.53461, -88.07319) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.3783 		Other (At-Grade)
Multilane (3+ Lane) 		2011 Opened September 2011. ICD estimated from Google Maps linework.
Draper, UT
Salt Lake Co.
United States 		1300 E / Pioneer Rd.
(40.52518, -111.85340) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.2210 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2001 ICD estimated from Google Maps linework. Constructed as single-lane in 2001. Updated to 2x1 in 2023. https://www.draperjournal.com/2023/09/07/464782/roundabout-reopens-early-with-revised-traffic-pattern
Orem, UT
Utah Co.
United States 		1200 South / 400 West
(40.27531, -111.70480) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
30.9811 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.