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
Olathe, KS
Johnson Co.
United States 		167th St. / Mur-Len St.
(38.82566, -94.77972) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.2443 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 Built for new development. Series of 3 roundabouts. ICD estimated from Google Maps linework.
Olathe, KS
Johnson Co.
United States 		167th St. / (unknown)
(38.82562, -94.77064) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.7312 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 Built for new development. Series of 3 roundabouts. ICD estimated from Google Maps linework.
Merriam, KS
Johnson Co.
United States 		Carter St. / Turkey Creek Dr.
(39.00353, -94.69585) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.7718 		Other (At-Grade)
Single-Lane 		2008 Built for new development. ICD estimated from Google Maps linework.
Manhattan, KS
Riley Co.
United States 		4th St. / Bluemont Ave.
(39.18669, -96.56160) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.6571 		Other (At-Grade)
Single-Lane 		2010 Previously controlled by two-way stop ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		Wanamaker Rd. / 37th St.
(39.00010, -95.76231) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.7675 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Opened June 2006. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		Wanamaker Rd. / 41st St.
(38.99257, -95.76227) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.1263 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Opened June 2006. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		Wanamaker Rd. / 53rd St.
(38.97103, -95.76216) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.4277 		Other (At-Grade)
Single-Lane 		2007 Previously controlled by two-way stop ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		NW 46th St. / Oakley Ave. / Hunters Ridge Dr.
(39.12937, -95.71753) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.6911 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		NW 46th St. / Fielding Rd.
(39.12928, -95.71420) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.1029 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 ICD estimated from Google Maps linework.
Shawnee, KS
Johnson Co.
United States 		Woodsonia Dr. / Clear Creek Pkwy.
(39.02142, -94.84924) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
32.4760 		Other (At-Grade)
Single-Lane 		2004 Date estimated. ICD estimated from Google Maps linework.
Riverton, KS
Cherokee Co.
United States 		US 69 Alt / K-66 / Beasley Rd.
(37.07561, -94.71608) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
57.1730 		Other (At-Grade)
Single-Lane 		2008 Opened December 2008. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		McDonald Dr. / I-70 WB Ramps
(38.99075, -95.25724) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
66.8368 		Freeway Ramps (Grade-Separated)
Single-Lane 		2008 Opened November 2008. Replaced trumpet interchange. ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		E 1450 Rd. / I-70 Ramps
(38.99456, -95.22959) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
73.1520 		Freeway Ramps (Grade-Separated)
Single-Lane 		2011 Replaced trumpet interchange.
De Pere, WI
Brown Co.
United States 		Main Ave.-Wisconsin St. (STH 32) / Broadway (STH 57)
(44.44744, -88.06049) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.5995 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 Opened July 12, 2007. First multilane roundabout in Wisconsin. ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States 		Lineville Rd. (CTH M) / Belmont Rd.
(44.59075, -88.09447) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.5159 		Other (At-Grade)
Single-Lane 		2006 Completed summer 2006. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States 		Lineville Rd. (CTH M) / Velp Ave. (CTH HS)
(44.59094, -88.07787) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.3200 		Other (At-Grade)
Single-Lane 		2005 Completed summer 2005. Fatal crash October 30, 2005. 11861-05. ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States 		Lineville Rd. (CTH M) / Waterway Ct.
(44.59112, -88.07314) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.9178 		Other (At-Grade)
Single-Lane 		2007 Completed summer 2007. ICD estimated from Google Maps linework.
Milwaukee, WI
Milwaukee Co.
United States 		W Canal St. / N 25th St.
(43.03109, -87.94351) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.9057 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2005 Opened September 15, 2005 ICD estimated from Google Maps linework.
Madison, WI
Dane Co.
United States 		Star Dr. / Apollo Way
(43.08892, -89.27760) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.1663 		Other (At-Grade)
Single-Lane 		2003 Date estimated. ICD estimated from Google Maps linework.
Madison, WI
Dane Co.
United States 		Star Dr. / Dominion Dr.
(43.09153, -89.27502) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.1652 		Other (At-Grade)
Single-Lane 		2006 Date estimated. ICD estimated from Google Maps linework.
Madison, WI
Dane Co.
United States 		McLean Dr. / Sharpsburg Dr.
(43.08695, -89.27359) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.1672 		Other (At-Grade)
Single-Lane 		2003 Date estimated. ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States 		E 900 S / Nevada Ave. / S 1350 E / S 1400 E
(40.22206, -111.63470) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.4459 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Lehi, UT
Utah Co.
United States 		N 900 W / W Grasslands Dr.
(40.38620, -111.82260) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.8400 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 In parking lot for big box retail shopping center. ICD estimated from Google Maps linework.
St. George, UT
Washington Co.
United States 		Washington Pkwy. / (unknown)
(37.14462, -113.48590) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9290 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2005 Date estimated. ICD estimated from Google Maps linework.
Champaign, IL
Champaign Co.
United States 		English Oak Dr. / Chestnut Grove Dr.
(40.09811, -88.32787) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.4942 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Edmonton, AB
Edmonton Capital Region
Canada 		87 Ave. NW / 142 St. NW
(53.51936, -113.56570) 		Rotary
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
73.1392 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Camrose, AB
Central Alberta
Canada 		73 St. / 45 Ave.
(53.01372, -112.86572) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.0000 		Other (At-Grade)
Single-Lane 		2005 No splitter islands.
Edmonton, AB
Edmonton Capital Region
Canada 		145 St. NW / 146 St. NW / 96 Ave. NW
(53.53242, -113.57270) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
26.9751 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Calgary, AB
Calgary Region
Canada 		Springbank Blvd. / Springbank Dr.
(51.01912, -114.20230) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.0000 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2002-2005).
North Saanich, BC
Capital Regional District
Canada 		Willington Rd. / E. Saanich Rd.
(48.63520, -123.42030) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.9387 		Other (At-Grade)
Single-Lane 		2005 http://www.icbc.com/road_safety/pdf/vancouver%20island/north%20saanich.pdf ICD estimated from Google Maps linework.
North Cowichan, BC
Cowichan Valley Regional District
Canada 		Lakes Rd. / Beverley Rd.
(48.78476, -123.68480) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.9034 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
North Cowichan, BC
Cowichan Valley Regional District
Canada 		Chemainus Rd. / Henry Rd.
(48.91472, -123.71340) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.8258 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
North Cowichan, BC
Cowichan Valley Regional District
Canada 		Tzouhalem Rd. / Maple Bay Rd.
(48.78071, -123.67160) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.1188 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
North Cowichan, BC
Cowichan Valley Regional District
Canada 		Sherman Rd. / Cowichan Lake Rd.
(48.79214, -123.73620) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.4726 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Delta, BC
Metro Vancouver
Canada 		82nd Ave. / 116th St.
(49.15220, -122.90150) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.0911 		Other (At-Grade)
Unknown 		2005 ICD estimated from Google Maps linework.
Kelowna, BC
Central Okanogan
Canada 		Burtch Rd. / Byrns Rd.
(49.87102, -119.46580) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.1717 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Kelowna, BC
Central Okanogan
Canada 		Swamp Rd. / Casorso Rd.
(49.84534, -119.46640) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.1050 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Kelowna, BC
Central Okanogan
Canada 		Benvoulin Rd. / Casorso Rd.
(49.84882, -119.46910) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.1952 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Surrey, BC
Greater Vancouver Regional District
Canada 		King George Hwy / 14th St. (Ave.?)
(49.02746, -122.77110) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.7585 		Other (At-Grade)
Single-Lane 		2007 http://www.icbc.com/road_safety/road_improve_pu/surrey.asp ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		SW 21st St. / Urish Rd.
(39.02899, -95.78088) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.1005 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 Completed November 2008. ICD estimated from Google Maps linework.
Allen, TX
Collin Co.
United States 		N Allen Dr. / St. Mary Dr.
(33.10674, -96.67113) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2006 .
Denton, TX
Denton Co.
United States 		Wheeler Ridge Dr. / Breton Dr.
(33.15462, -97.10275) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
54.8630 		Other (At-Grade)
Single-Lane 		2005 .
Rowlett, TX
Dallas Co.
United States 		Main St. / Coyle St. / Skyline Dr.
(32.90316, -96.56289) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2006 .
Great Neck, NY
Nassau Co.
United States 		Barstow Rd. / South Station Pl.
(40.78735, -73.72462) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.6068 		Other (At-Grade)
Single-Lane 		2003 High pedestrian activitiy associated with commuter rail station below the roundabout. ICD estimated from Google Maps linework.
Pemberton, BC
Pemberton Valley
Canada 		Portage Rd. / Aspen Blvd.
(50.32201, -122.80508) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signal/Beacon 		3 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane
Vancouver, BC
Greater Vancouver Regional District
Canada 		16th Ave. / Westbrook Mall
(49.25575, -123.23630) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.0940 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 On campus of University of British Columbia. Functional Class: Arterial ICD estimated from Google Maps linework.
Casa Grande, AZ
Pinal Co.
United States 		N. Pottebaum Ave. / E. Anna Dr.
(32.88727, -111.72700) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
24.0702 		Other (At-Grade)
Single-Lane 		2007 Functional Class: Local ICD estimated from Google Maps linework.
Casa Grande, AZ
Pinal Co.
United States 		N. Pottebaum Ave. / E. Manor Dr.
(32.88863, -111.72680) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
20.0582 		Other (At-Grade)
Single-Lane 		2007 Functional Class: Local ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		E. 17th St. / New Hampshire St.
(38.95364, -95.23475) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
13.0029 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (fuzzy aerial photos). ICD estimated from Google Maps linework.
Rio Puerco, NM
Bernalillo Co.
United States 		Central Ave. / I-40 EB Ramps
(35.03048, -106.94750) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
68.4580 		Freeway Ramps (Grade-Separated)
Single-Lane 		2008 Owned by New Mexico DOT. Previously controlled by stop control ICD estimated from Google Maps linework.
Forest Hill, MD
Harford Co.
United States 		MD 23 / Commerce Rd.
(39.57390, -76.37067) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2008 On August 9, 2008 a new roundabout opened on Maryland Route 23 and an extended Commerce Drive in Forest Hill (Harford County), Maryland. It was built by a private developer to improve access to the Forest Hill Industrial Park by using Route 23, a limited access highway, rather than the current access road to Commerce Drive, Jarrettsville Road, which is primarily a residential route.
Cabazon, CA
Riverside Co.
United States 		Apache Trl. / I-10 EB Ramps
(33.92071, -116.80680) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		3 Approaches
0 Driveways
54.5087 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2008 Opened July 11, 2008. http://www.pe.com/localnews/rivcounty/stories/PE_News_Local_S_circle21.46d763e.html. Railroad in close proximity. ICD estimated from Google Maps linework.
Cabazon, CA
Riverside Co.
United States 		Apache Trl. / Thunder Rd. / Seminole Dr. / I-10 WB Ramps
(33.92192, -116.80610) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
79.2480 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2008 Opened July 11, 2008. http://www.pe.com/localnews/rivcounty/stories/PE_News_Local_S_circle21.46d763e.html.
Pearl City, HI
Oahu Co.
United States 		Kuahaka St. / Kalauipo St.
(21.41052, -157.96720) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.4619 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Pearl City, HI
Oahu Co.
United States 		Kuahaka St. / Kaweloka St.
(21.40495, -157.97320) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
17.7912 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Kailua, HI
Oahu Co.
United States 		Ulupuni St. / Uluhala St.
(21.37803, -157.75590) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
15.5702 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Pukalani, HI
Maui Co.
United States 		Kupaoa St. / Ohiaku St.
(20.82094, -156.33001) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2005
Lihue, HI
Kauai Co.
United States 		Pikake St. / Kauila St. / Makaa St.
(21.96538, -159.37974) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2006
Sacramento, CA
Sacramento Co.
United States 		Rush River Dr. / Windbridge Dr.
(38.48465, -121.53360) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
32.7212 		Other (At-Grade)
Single-Lane 		2007 Functional Class: Local ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		Silva Ranch Way / (unknown)
(38.47686, -121.52680) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
61.7094 		Other (At-Grade)
Single-Lane 		2007 Functional Class: Local ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		Coleman Ranch Way / (unknown)
(38.47739, -121.52340) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
139.3127 		Other (At-Grade)
Single-Lane 		2007 Functional Class: Local ICD estimated from Google Maps linework.
West Fargo, ND
Cass Co.
United States 		CR 17 / 52nd Ave S.
(46.80409, -96.90268) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
46.5982 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Neenah, WI
Winnebago Co.
United States 		Co. Hwy. PP / Jacobsen Rd. / American Dr.
(44.21429, -88.47825) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.8167 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
San Diego, CA
San Diego Co.
United States 		Sea Ridge Dr. / Chelsea St.
(32.80875, -117.26520) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.0801 		Other (At-Grade)
Single-Lane 		2007 Marginal roundabout. No splitter islands. ICD estimated from Google Maps linework.
West Haven, CT
New Haven Co.
United States 		Rte 162 (Jones Hill Rd.) / SR 705 (Ocean Avenue)
(41.23624, -72.98605) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.8421 		Other (At-Grade)
Single-Lane 		2007 Opened fall 2007. Connecticut DOT project. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Clackamas, OR
Clackamas Co.
United States 		SE 172nd Ave. / SE Creekwood Rd.
(45.41880, -122.48550) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.5928 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 Creekwood Rd. is new roadway; SE 172nd Avenue is existing. ICD estimated from Google Maps linework.
Billings, MT
Yellowstone Co.
United States 		King Ave. / Olympic Blvd.
(45.75507, -108.61360) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.1658 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 Near Kohl's retail shopping center. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Meridian, ID
Ada Co.
United States 		Pine St. / Webb Rd.
(43.61220, -116.36840) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.9126 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 ICD estimated from Google Maps linework.
Burnside, AZ
Apache Co.
United States 		US 191 / AZ 264
(35.75473, -109.62710) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Single-Lane 		2009 Right-turn bypass lane. Elliptical shaped. ICE = 180 ft x 160 ft.
Flagstaff, AZ
Coconino Co.
United States 		Dodge Ave. / Railhead Ave.
(35.22522, -111.57000) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
38.0498 		Other (At-Grade)
Single-Lane 		2007 By developer. ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States 		Riverdale Dr. (CTH J) / CTH RK
(44.54785, -88.10120) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.4509 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Flagstaff, AZ
Coconino Co.
United States 		Pine Cliff Dr. / Gemini Dr.
(35.20808, -111.63541) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2008 By developer.
Flagstaff, AZ
Coconino Co.
United States 		S Woody Mountain Rd. / W Presidio Dr.
(35.18308, -111.69266) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2006-2007).
Billings, MT
Yellowstone Co.
United States 		King Ave. / St. Vincent Way
(45.75520, -108.62260) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.9990 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 Previously controlled by two-way stop Functional Class: Principal Arterial ICD estimated from Google Maps linework.
Bozeman, MT
Gallatin Co.
United States 		Baxter Ln. / Ferguson Ave.
(45.70024, -111.09310) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2003
Bozeman, MT
Gallatin Co.
United States 		Laurel Pkwy. / Annie St.
(45.68916, -111.11383) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2003
Bozeman, MT
Gallatin Co.
United States 		Laurel Pkwy. / Glenellen Dr. / Sherwood Way
(45.69050, -111.11401) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003
Bozeman, MT
Gallatin Co.
United States 		Cascade St. / Kimball Ave.
(45.68162, -111.09510) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
19.1915 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Bozeman, MT
Gallatin Co.
United States 		Cascade St. / Clifden Dr.
(45.68115, -111.09950) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
19.1916 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Kalispell, MT
Flathead Co.
United States 		(shopping center entrance) / (parking lot)
(48.23521, -114.33170) 		Other
Existing 		Uncontrolled
Unknown 		0 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2005
Bloomington, IN
Monroe Co.
United States 		W Tapp Rd. / S Adams St.
(39.13650, -86.55431) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.4967 		Other (At-Grade)
Single-Lane 		2008 No truck apron and wide circulatory roadway. ICD estimated from Google Maps linework.
West Lafayette, IN
Tippicanoe Co.
United States 		McClure Ave. / Win Hentschel Blvd.
(40.46592, -86.92810) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
59.0613 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W. 136th St. / Ditch Rd.
(39.98478, -86.18355) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.2650 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W. 141st St. / Ditch Rd.
(39.99198, -86.18353) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.6006 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W. 141st St. / Springmill Rd.
(39.99215, -86.16481) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.5156 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Valparaiso, IN
Porter Co.
United States 		Laporte Ave. / Sturdy Rd.
(41.46645, -87.03669) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2008 Right-turn-only lanes on west, east, and south legs.
Kokomo, IN
Howard Co.
United States 		Center Rd. / Webster St.
(40.43313, -86.13661) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.9995 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Des Moines, IA
Polk Co.
United States 		Gannett Ave. / Rittenhouse St.
(41.52031, -93.65178) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
41.1341 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Altoona, IA
Polk Co.
United States 		10th Ave. SE / 15th St. SE
(41.63733, -93.45121) 		Other
Removed 		Unknown
Unknown 		4 Approaches
0 Driveways
18.2880 		Other (At-Grade)
Single-Lane 		2024 No splitter islands. Opened December 16, 2005. Circle replaced with a 4-way stop in 2024. https://www.altoona-iowa.com/news_detail_T2_R153.php
(unincorporated), IA
Blackhawk Co.
United States 		Independence Ave. (IA 281) / Raymond Rd. (V49)
(42.49790, -92.21953) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.7456 		Other (At-Grade)
Single-Lane 		2008 Opened Octboer 29, 2008. First roundabout in Iowa with 55mph approaches. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Cedar Falls, IA
Blackhawk Co.
United States 		Cedar Heights Dr. / Viking Rd.
(42.48899, -92.41638) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Single-Lane 		2007 Right-turn-only lane on west leg. Intersection relocated from T-intersection to the south. Opened November 2007.
Clive, IA
Dallas Co.
United States 		NW 156th St. / Boston Pkwy.
(41.62066, -93.83356) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.7487 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 ICD estimated from Google Maps linework.
Clive, IA
Dallas Co.
United States 		Berkshire Pkwy. / Sheridan Ave.
(41.61697, -93.84561) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.5370 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Clive, IA
Dallas Co.
United States 		Berkshire Pkwy. / Boston Pkwy.
(41.62153, -93.84657) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.3558 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Coralville, IA
Johnson Co.
United States 		E. 9th St. / Quarry Rd.
(41.68176, -91.55988) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5714 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Opened August 15, 2006. ICD estimated from Google Maps linework.
Coralville, IA
Johnson Co.
United States 		Holiday Rd. / Corridor Way
(41.69709, -91.60332) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.3202 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Ottumwa, IA
Wapello Co.
United States 		US 34 / US 63
(41.00102, -92.40453) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.3638 		Other (At-Grade)
Single-Lane 		2006 Opened November 2006. Right turn bypass lanes on all approaches. ICD estimated from Google Maps linework.
Urbandale, IA
Dallas Co.
United States 		142nd St. / Douglas Pkwy.
(41.62940, -93.80899) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.6355 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Billings, MT
Yellowstone Co.
United States 		Shiloh Crossing Blvd. / Olympic Blvd.
(45.75216, -108.61570) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.1677 		Other (At-Grade)
Single-Lane 		2009 Functional Class: Local ICD estimated from Google Maps linework.
West Des Moines, IA
Dallas Co.
United States 		Wistful Vista Dr. / S. 79th St.
(41.56572, -93.81668) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.6372 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.