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
Superior, CO
Boulder Co.
United States 		Rock Creek Pkwy. / 88th St.
(39.93764, -105.14780) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
47.6187 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 ICD estimated from Google Maps linework.
Durango, CO
La Plata Co.
United States 		Jenkins Ranch Rd. / Molas Dr.
(37.28099, -107.85550) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
28.5089 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Commerce City, CO
Adams Co.
United States 		Turnberry Pkwy. / Revere St.
(39.89062, -104.83800) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2005).
Commerce City, CO
Adams Co.
United States 		E 105th Ave. / Uvalda St.
(39.88673, -104.83520) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (2002-2003).
Parker, CO
Douglas Co.
United States 		S. Cedar Gulch Ln. / (unknown)
(39.51289, -104.79120) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
35.9347 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Middletown, DE
New Castle Co.
United States 		Bunker Hill Rd. / Choptank Rd.
(39.45790, -75.74350) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
31.3525 		Other (At-Grade)
Single-Lane 		2007 Rural, redesigned in 2008 to better accommodate trucks and farm equipment. ICD estimated from Google Maps linework.
Knoxville, TN
Knox Co.
United States 		Concord Rd. / Northshore Dr.
(35.86081, -84.14137) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.9098 		Other (At-Grade)
Single-Lane 		2008 http://www.knoxnews.com/news/2008/feb/20/countys-first-roundabout-opened-concord-northshore/ ICD estimated from Google Maps linework.
Palo Alto, CA
Santa Clara Co.
United States 		Park Blvd. / Park Ave.
(37.43076, -122.14980) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
24.6585 		Other (At-Grade)
Single-Lane 		Functional Class: Local ICD estimated from Google Maps linework.
Roseville, CA
Placer Co.
United States 		Westhills Dr. / Morningstar Dr. / St. Basil Cir.
(38.76151, -121.35340) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.5951 		Other (At-Grade)
Single-Lane 		2001 Crosswalks adjacent to circle. ICD estimated from Google Maps linework.
Tumwater, WA
Thurston Co.
United States 		Littlerock Rd. SW / Odegard Rd. SW
(46.98985, -122.92650) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2010 June 2010.
Tumwater, WA
Thurston Co.
United States 		Littlerock Rd. SW / Kingswood Dr. SW
(46.99435, -122.92190) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2010 September 2010.
Walla Walla, WA
Walla Walla Co.
United States 		Myra Rd. / SR 12 EB Ramps
(46.06933, -118.36979) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 Raindrop shaped. July 2010. ICD estimated from Google Maps linework.
Walla Walla, WA
Walla Walla Co.
United States 		Myra Rd. / SR 12 WB Ramps
(46.07040, -118.36987) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2010 Raindrop shaped. July 2010.
Woodland, WA
Cowlitz Co.
United States 		Dike Access Rd. / I-5 NB Ramps
(45.92780, -122.75522) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 Raindrop shaped. December 2010.
Woodland, WA
Cowlitz Co.
United States 		Dike Access Rd. / I-5 SB Ramps
(45.92699, -122.75780) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 December 2010.
Tumwater, WA
Thurston Co.
United States 		Littlerock Rd. SW / Tumwater Blvd. SW
(46.98283, -122.93544) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2009 July 2009.
Spokane Valley, WA
Spokane Co.
United States 		E Montgomery Dr. / E Mansfield Ave.
(47.67753, -117.24790) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2009 April 2009.
Snoqualmie, WA
King Co.
United States 		North Bend Way / (Snoqualmie Casino entrance)
(47.51671, -121.84100) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2008 Through bypass lane on west leg. October 2008. ICD estimated from Google Maps linework.
Redmond, WA
King Co.
United States 		Eastridge Dr. NE / NE Cedar Park Crescent
(47.69141, -122.01690) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2012
Selah, WA
Yakima Co.
United States 		Gore Rd. / Selah Loop Rd.
(46.67943, -120.53061) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2008 August 2008. Replaced triangle intersection.
Redmond, WA
King Co.
United States 		152nd Ave. NE / NE 36th Pl. / NE 31st St.
(47.63828, -122.13550) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.3615 		Other (At-Grade)
Single-Lane 		2010 Near Microsoft campus. Moderate ped/bike volumes. ICD estimated from Google Maps linework.
Pleasanton, CA
Alameda Co.
United States 		Pleasanton Ave. / (park access #1)
(37.65266, -121.88980) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2008
Pleasanton, CA
Alameda Co.
United States 		Pleasanton Ave. / (park access #2)
(37.65350, -121.88784) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2008 Painted splitter island on north leg.
Pleasanton, CA
Alameda Co.
United States 		Valley Ave. / Oak Vista Way
(37.65349, -121.89390) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.4216 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Roseville, CA
Placer Co.
United States 		Park Regency Dr. / Castlebridge Dr. / Hillingdon St.
(38.75455, -121.34680) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.5983 		Other (At-Grade)
Single-Lane 		2001 Crosswalks adjacent to circle. ICD estimated from Google Maps linework.
Sausalito, CA
Marin Co.
United States 		Conzelman Rd. / McCullough Rd.
(37.83361, -122.49400) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.2415 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Pleasanton, CA
Alameda Co.
United States 		Valley Ave. / (unknown)
(37.65670, -121.89670) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
28.3660 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Goleta, CA
Santa Barbara Co.
United States 		Lagoon Rd. / Mesa Rd.
(34.41491, -119.83930) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.4993 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 At the University of California Santa Barbara college campus. Right-turn bypass lane. Bus bays along circulatory roadway. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Hutchison Dr. / Campbell Rd.
(38.53686, -121.77170) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.4343 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 Near University of California Davis college campus. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Golden Straw Ln. / Long Meadow Ct.
(39.21441, -76.81085) 		Traffic Calming Circle
Existing 		Other
None 		3 Approaches
0 Driveways
99.0123 		Other (At-Grade)
Single-Lane 		2000 Yield control only on west leg. ICD estimated from Google Maps linework.
Lynnwood, WA
Snohomish Co.
United States 		Ash Way / 18th Ave. SW
(47.85489, -122.25737) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2009 October 2009.
Adamstown, MD
Frederick Co.
United States 		Mountville Rd. / Adams Common Dr.
(39.30643, -77.47158) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.6482 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Branson, MO
Taney Co.
United States 		Forsythe Blvd. / Oak Creek Dr.
(36.64407, -93.25961) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.7888 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W 116th St. / W 14th Ave.
(39.95591, -86.18405) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.8735 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W 116th St. / Clay Center Rd.
(39.95604, -86.17889) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1974 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W Main St. / W 14th Ave.
(39.97756, -86.18355) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.3540 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W Main St. / Clay Center Rd.
(39.97760, -86.17952) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
43.0148 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		Towne Rd. / W 126th St.
(39.97018, -86.20264) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2007 Painted spirals next to central island.
Carmel, IN
Hamilton Co.
United States 		E 136th St. / Keystone Pkwy NB Ramps
(39.98598, -86.11404) 		Roundabout
Existing 		All-Way Yield
Metering Signal 		3 Approaches
0 Driveways
38.1000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Part of tight diamond interchange with raindrop shape central island. Modified in 2016-2017 to add metering signals. Northbound ramp from Keystone Pkwy has a metering signal (PHB) that activates during peak hours when triggered by a long westbound queue. Eastbound approach has a metering signal (PHB) that activates during peak hours when triggered by a long northbound queue. 21442
Carmel, IN
Hamilton Co.
United States 		E 136th St. / Keystone Pkwy SB Ramps
(39.98581, -86.11488) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.1134 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Part of tight diamond interchange with raindrop shape central island. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		E 126th St. / Keystone Pkwy. NB Ramps
(39.97122, -86.11223) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2009 Right-turn-only lane on south leg. Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E 126th St. / Keystone Pkwy. SB Ramps
(39.97122, -86.11327) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2009 Right-turn-only lane on north leg. Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E Carmel Dr. / Keystone Pkwy. NB Ramps
(39.96208, -86.11313) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2010 Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E Carmel Dr. / Keystone Pkwy. SB Ramps
(39.96198, -86.11397) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2010 Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E 116th St. / Keystone Pkwy. NB Ramps
(39.95663, -86.11353) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2009 Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E 116th St. / Keystone Pkwy. SB Ramps
(39.95665, -86.11430) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2009 Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E 106th St. / Keystone Pkwy. NB Ramps
(39.94169, -86.11259) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2009 Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E 106th St. / Keystone Pkwy. SB Ramps
(39.94140, -86.11354) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2009 Right-turn-only lane on north leg. Raindrop shaped. Part of tight diamond interchange.
Roseville, CA
Placer Co.
United States 		Reserve Dr. / Diamond Oaks Rd.
(38.76679, -121.27120) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.7990 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		X St. / 48th St.
(38.55347, -121.45030) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
42.0299 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1995 ICD estimated from Google Maps linework.
Denver, CO
Adams Co.
United States 		Xanthia St. / Xanthia Way / E. 24th Ave.
(39.75166, -104.88760) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.5468 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Denver, CO
Adams Co.
United States 		Willow St. / E. 21st Ave.
(39.74838, -104.88819) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.2212 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Breckenridge, CO
Summit Co.
United States 		Main St. / N. Park Ave.
(39.49046, -106.04560) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.2595 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 ICD estimated from Google Maps linework.
Kalamazoo, MI
Kalamazoo Co.
United States 		Solon St. / Arboretum Pkwy.
(42.28875, -85.62837) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.0397 		Other (At-Grade)
Single-Lane 		2010 Yield-controlled right-turn bypass lane on northwest leg, which is one-way into the roundabout. ICD estimated from Google Maps linework.
Kalamazoo, MI
Kalamazoo Co.
United States 		Howard St. / Solon St. / Kendall Ave.
(42.28836, -85.62660) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.0600 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 Yield-controlled right-turn bypass lane on east leg. Kendall Avenue is one-way northbound exiting the roundabout. ICD estimated from Google Maps linework.
Martell, CA
Amador Co.
United States 		Industry Dr. / (parking lot access)
(38.36968, -120.80150) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.5824 		Other (At-Grade)
Single-Lane 		2006 Serves industrial park. ICD estimated from Google Maps linework.
Modesto, CA
Stanislaus Co.
United States 		Encina Ave. / Conejo Ave.
(37.64524, -120.96640) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
18.9136 		Other (At-Grade)
Single-Lane 		2005 Opened August 24, 2005. Adjavent to junior high school. ICD estimated from Google Maps linework.
Roseville, CA
Placer Co.
United States 		Parkside Way / New Meadow Dr.
(38.79915, -121.32150) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
26.9931 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Roseville, CA
Placer Co.
United States 		Parkside Way / McCloud Way
(38.79916, -121.33110) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.0623 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Petaluma, CA
Sonoma Co.
United States 		Corona Rd. / Sonoma Mountain Pkwy.
(38.26890, -122.65450) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
31.8812 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Walnut Creek, CA
Alameda Co.
United States 		Walnut Ave. / Oak Grove Rd.
(37.91432, -122.00770) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
22.6138 		Other (At-Grade)
Single-Lane 		2000 Right turn bypass lane in northwest quadrant. ICD estimated from Google Maps linework.
Ripon, CA
San Joaquin Co.
United States 		Fulton Ave. / Santos Ave.
(37.75781, -121.13350) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
41.5467 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Rice Lake, WI
Barron Co.
United States 		CTH O (18 1 / 2 Ave.) / US 53 NB Ramps
(45.47319, -91.75753) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5006 		Freeway Ramps (Grade-Separated)
Single-Lane 		2006 Opened June 1, 2006 ICD estimated from Google Maps linework.
Rice Lake, WI
Barron Co.
United States 		CTH O (18 1 / 2 Ave.) / US 53 SB Ramps
(45.47325, -91.76021) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5005 		Freeway Ramps (Grade-Separated)
Single-Lane 		2006 Opened June 1, 2006 ICD estimated from Google Maps linework.
Richfield, WI
Washington Co.
United States 		STH 145 / US 41 SB Ramps
(43.28170, -88.19557) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.3868 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2009 Series of 5 roundabouts. Corridor serves two interchanges and Cabelas commercial development. ICD estimated from Google Maps linework.
Richfield, WI
Washington Co.
United States 		STH 145 / US 41 NB Ramps
(43.28247, -88.19345) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.7780 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2009 Series of 5 roundabouts. Corridor serves two interchanges and Cabelas commercial development. ICD estimated from Google Maps linework.
West Des Moines, IA
Dallas Co.
United States 		W. Wells Fargo Trl. / Wells Fargo Terr.
(41.55986, -93.80373) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.0228 		Other (At-Grade)
Single-Lane 		2005 In new Wells Fargo commercial development. ICD estimated from Google Maps linework.
West Des Moines, IA
Dallas Co.
United States 		W. Wells Fargo Trl. / E. Wells Fargo Terr.
(41.55994, -93.80212) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.8101 		Other (At-Grade)
Single-Lane 		2005 In new Wells Fargo commercial development. ICD estimated from Google Maps linework.
Ankeny, IA
Polk Co.
United States 		SW Somersby Blvd. / Springfield Dr.
(41.69387, -93.61252) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
24.0790 		Other (At-Grade)
Single-Lane 		2004 One of three in a new residential development. Functional Class: Local ICD estimated from Google Maps linework.
Fort Dodge, IA
Webster Co.
United States 		10th Ave. N. / N. 32nd St.
(42.51522, -94.14932) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.8545 		Other (At-Grade)
Single-Lane 		2009 Replaced two T intersections. ICD estimated from Google Maps linework.
Iowa City, IA
Johnson Co.
United States 		Grand Ave. / S. Grand Ave.
(41.65855, -91.54559) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.2000 		Other (At-Grade)
Single-Lane 		2007 On University of Iowa school campus. Functional Class: Local ICD estimated from Google Maps linework.
Wickenburg, AZ
Maricopa Co.
United States 		US 93 / US 60
(33.97094, -112.72790) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.5146 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 Consecutive double lefts with three-lane circulatory section. ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		W Riverwood Blvd. / Windrow Blvd.
(33.41749, -112.26690) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.9252 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Wilsonville, OR
Clackamas Co.
United States 		SW Barber St. / Brown Rd.
(45.30865, -122.78620) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
40.3179 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Grand Junction, CO
Mesa Co.
United States 		24 Rd. / I-70 EB Ramps
(39.11333, -108.60820) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.0672 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2006 ICD estimated from Google Maps linework.
Richfield, WI
Washington Co.
United States 		STH 145 / US 45 SB Ramps
(43.28387, -88.18716) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.5606 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Series of 5 roundabouts. Corridor serves two interchanges and Cabelas commercial development. ICD estimated from Google Maps linework.
Richfield, WI
Washington Co.
United States 		STH 145 / US 45 NB Ramps
(43.28380, -88.18485) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4301 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Series of 5 roundabouts. Corridor serves two interchanges and Cabelas commercial development. ICD estimated from Google Maps linework.
Raleigh, NC
Wake Co.
United States 		Hillsborough St. / Morgan St.
(35.78262, -78.65527) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
26.1600 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
West Des Moines, IA
Dallas Co.
United States 		S. Crescent Way / S. Ridgefield Way / Fairway Dr.
(41.56541, -93.78633) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.9566 		Other (At-Grade)
Single-Lane 		2007 Intersection of two private residential streets on former Ponderosa Golf Course. ICD estimated from Google Maps linework.
Ottawa, ON
City of Ottawa
Canada 		Brian Coburn Blvd. / Trim Rd.
(45.45820, -75.44730) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
74.5586 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 Functional Class: Arterial ICD estimated from Google Maps linework.
Lansing Township, MI
Ingham Co.
United States 		Lake Lansing Rd. / Chamberlain Dr.
(42.76086, -84.52982) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
56.9966 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 ICD estimated from Google Maps linework.
Williamsport, PA
Lycoming Co.
United States 		Via Bella St. / Mulberry St.
(41.24000, -76.99792) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.3309 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Williamsport, PA
Lycoming Co.
United States 		Via Bella St. / William St.
(41.23740, -77.00319) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
43.1096 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Williamsport, PA
Lycoming Co.
United States 		Via Bella St. / Court St.
(41.23876, -77.00027) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
58.3764 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Muncy, PA
Lycoming Co.
United States 		Lycoming Mall Circle
(41.24320, -76.82846) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.7372 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Wilsonville, OR
Clackamas Co.
United States 		SW Boeckman Rd. / Tooze Rd.
(45.31616, -122.78790) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
40.3126 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Gorham, ME
Cumberland Co.
United States 		Rte. 112 / Rte. 114
(43.65213, -70.42751) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7999 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 ICD estimated from Google Maps linework.
Clermont, OH
Clermont Co.
United States 		Eastgate Blvd. / Ferguson Dr.
(39.09343, -84.28097) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
65.5320 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2007 Little speed control.
Wilmington, DE
New Castle Co.
United States 		W Park Dr. / E Park Dr.
(39.77437, -75.54610) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.9632 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Irvine, CA
Orange Co.
United States 		Sand Canyon Ave. / Shady Canyon Dr.
(33.65462, -117.78100) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
104.3859 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 ICD estimated from Google Maps linework.
Petaluma, CA
Sonoma Co.
United States 		Windsor Dr. / West Haven Way
(38.22460, -122.66430) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.0241 		Other (At-Grade)
Single-Lane 		2005 Functional Class: Collector ICD estimated from Google Maps linework.
Yuba City, CA
Sutter Co.
United States 		Stabler Ln. / Butte Vista Ln.
(39.16747, -121.64400) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
46.2983 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Clare, MI
Isabella Co.
United States 		US 127 Business / Mission Rd.
(43.80889, -84.76766) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.3709 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Holt, MI
Ingham Co.
United States 		Cedar St. / Holbrook Rd.
(42.63206, -84.50667) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
50.9640 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 ICD estimated from Google Maps linework.
Golden, CO
Jefferson Co.
United States 		S. Golden Rd. / Ford St. / Jackson St.
(39.74612, -105.20940) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
52.3432 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 Functional Class: Arterial ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States 		Maple Lawn Blvd. / Tawes St.
(39.15364, -76.90125) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.2675 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States 		Maple Lawn Blvd. / Iager Blvd.
(39.15816, -76.90440) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.3392 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2005 ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States 		Ice Crystal Dr. / Birchtree Ln.
(39.14355, -76.89912) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.7147 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States 		MD 216 / Maple Lawn Blvd.
(39.14710, -76.90723) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
40.7543 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2005 Series of 4 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Gorham, ME
Cumberland Co.
United States 		Rte. 112 / Rte. 25
(43.67923, -70.46568) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.0054 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 ICD estimated from Google Maps linework.