Roundabouts Database Index

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
Scottsdale, AZ Maricopa Co. United States	N 68th St. / E Cholla St. (33.58949, -111.93552)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2003	Completed with traffic calming project.
Woods Cross, UT Davis Co. United States	W 2260 S / S 2040 W (40.86671, -111.93590)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Ogden, UT Weber Co. United States	Skyline Pkwy. / County Hills Dr. (41.18837, -111.93782)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017).
North Salt Lake, UT Davis Co. United States	Fox Hollow Dr. W / 900 N (40.85756, -111.93805)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
North Salt Lake, UT Davis Co. United States	Fox Hollow Dr. W / W 1100 N (40.86156, -111.93811)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
North Salt Lake, UT Davis Co. United States	Foxboro Dr. / Fox Hollow Rd. (40.85340, -111.93866)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
West Jordan, UT Salt Lake Co. United States	W 8020 S / (parking lots) (40.60561, -111.93990)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.3888	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Maple Ash, AZ Maricopa Co. United States	W 12th St. / S Maple Ave. (33.41619, -111.94121)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Maple Ash, AZ Maricopa Co. United States	W 9th St. / S Maple Ave. (33.42046, -111.94122)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Maple Ash, AZ Maricopa Co. United States	W 11th St. / S Maple Ave. (33.41763, -111.94123)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Maple Ash, AZ Maricopa Co. United States	W 9th St. / S Ash Ave. (33.42048, -111.94237)	Traffic Calming Circle Existing	All-Way Stop Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Tempe, AZ Maricopa Co. United States	Rio Salado Pkwy / S Ash Ave. (33.42935, -111.94276)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signal/Beacon	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	Tempe Street Car crossing through the middle. https://www.tempe.gov/government/engineering-and-transportation/transportation/streets-signals-traffic/roundabouts/first-st-ash-ave-rio-salado-pkwy-roundabout
Scottsdale, AZ Maricopa Co. United States	N. 64th St. / E. Lafayette Blvd. (33.49474, -111.94330)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.9119	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Paradise Valley, AZ Maricopa Co. United States	E Mockingbird Ln. / E Northern Ave. / N Invergordon Rd. (33.55305, -111.94344)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 23.8877	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Ammon, ID Bonneville Co. United States	E Lincoln Rd. / N 45th E (Crowley Rd.) (43.51059, -111.94433)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2020	https://www.eastidahonews.com/2020/09/major-intersection-to-close-next-week-for-roundabout-construction/
Idaho Falls, ID Bonneville Co. United States	1st St. / 45th St. E (Crowley Rd.) (43.49621, -111.94440)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8637	Other (At-Grade) Single-Lane	2020	Designed to be expandable inward to dual lanes in the future.
Ammon, ID Bonneville Co. United States	Crowley Rd. / E 17th St. (43.48173, -111.94459)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 20.1168	Other (At-Grade) Single-lane w/ Traversable Central Island	2019
Layton, UT Davis Co. United States	E Antelope Dr. / N Church St. (41.08892, -111.94493)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.3057	Other (At-Grade) Single-Lane	2014	Skewed intersection. Elliptical shape. Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Tempe, AZ Maricopa Co. United States	W Howe St. / S Wilson St. (33.41682, -111.94575)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Tempe, AZ Maricopa Co. United States	W 10th St. / S Wilson St. (33.41940, -111.94577)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Riverton, UT Salt Lake Co. United States	S Park Ave. / W Park Ave. (40.51950, -111.94594)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways 28.1452	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1997-2002). ICD estimated from Google Maps linework.
Tempe, AZ Maricopa Co. United States	W 11th St. / S Roosevelt St. (33.41779, -111.94727)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Tempe, AZ Maricopa Co. United States	W 9th St. / S Roosevelt St. (33.42064, -111.94728)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Tempe, AZ Maricopa Co. United States	W 12th St. / S Roosevelt St. (33.41608, -111.94728)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Ogden, UT Weber Co. United States	Tyler Ave. / 41st St. (41.19035, -111.94770)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.1530	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Completed July 2008. On campus of Weber State University. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Ogden, UT Weber Co. United States	Tyler Ave. / University Cir. (41.19333, -111.94780)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.8476	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Completed July 2008. On campus of Weber State University. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Montana City, MT Lewis and Clark Co. United States	SR 282 / Jackson Creek Rd. (46.54082, -111.94824)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1960	Other (At-Grade) Single-Lane	2007	Opened October 2007.
Bluffdale, UT Salt Lake Co. United States	2200 W / 14400 S (40.48960, -111.94834)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 20.8913	Other (At-Grade) Single-Lane	2018	City Hall roundabout. ICD estimated from Google Maps linework.
Tempe, AZ Maricopa Co. United States	W 12th St. / S Judd St. (33.41609, -111.94855)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Eagle Mountain, UT Utah Co. United States	Silver Lake Pkwy. / N Woodhaven Blvd. / Campbell Cir. (40.35407, -111.94863)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Layton, UT Davis Co. United States	E Rosewood Ln. / Chapel St. / 500 S (41.05624, -111.94909)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2003
Phoenix, AZ Maricopa Co. United States	N Galvin Pkwy. / Desert Botanical Gardens (33.45977, -111.94970)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Year Completed estimated (2007-2009).
Phoenix, AZ Maricopa Co. United States	E Dove Valley Rd. / N 60th St. (33.78470, -111.95199)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.7500	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Eagle Mountain, UT Utah Co. United States	Silver Lake Pkwy. / Silver Creek Way / N Ansley Ln. (40.35653, -111.95246)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Cottonwood, AZ Yavapai Co. United States	Camp Verde Bridgeport Hwy (AZ 260) / E Coury Dr. / Hayfield Draw Dr. (34.65163, -111.95746)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 70.1040	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	https://azdot.gov/adot-news/state-route-260-project-homestretch-completion-fall
Kaysville, UT Davis Co. United States	S Angel St. / Smith Ln. (41.02160, -111.96155)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2007
Tempe, AZ Maricopa Co. United States	S Priest Dr. / W Grove Pkwy. (33.35151, -111.96257)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2021
Idaho Falls, ID Bonneville Co. United States	E Lincoln Rd. / Ammon Rd. (43.51133, -111.96428)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.7101	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	ICD estimated from Google Maps linework.
Cottonwood, AZ Yavapai Co. United States	Camp Verde Bridgeport Hwy (AZ 260) / Camino Real / E Thousand Trails Rd. (34.66105, -111.96492)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 70.1040	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	https://azdot.gov/adot-news/state-route-260-project-homestretch-completion-fall
South Jordan, UT Salt Lake Co. United States	3200 W / Soldier Creek Ln. / Alta Peak Rd. (40.54799, -111.96653)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 62.6192	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Eagle Mountain, UT Utah Co. United States	E Golden Eagle Rd. / N Kiowa Pkwy. (40.35008, -111.96673)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Desert View, AZ Maricopa Co. United States	E Marriott Dr. / (parking) (33.68131, -111.96826)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.4904	Other (At-Grade) Single-Lane	2003	Constructed initially as double-lane roundabout with unstriped circulatory roadway. Converted to single-lane 2011-2012 by striped out inside circulating lane.
West Jordan, UT Salt Lake Co. United States	Jordan Line Pkwy. / Station View Way (40.59354, -111.97048)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.2072	Other (At-Grade) Single-Lane	2012	Bus transit center. Concrete pavement. ICD estimated from Google Maps linework.
Desert View, AZ Maricopa Co. United States	E Marriott Dr. / E Pathfinder Dr. (33.68448, -111.97050)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.4904	Other (At-Grade) Single-Lane	2002	Striped truck apron. Year Completed estimated (2002-2003).
Phoenix, AZ Maricopa Co. United States	S. Pointe Pkwy. W / S. Pointe Pkwy. E (33.37649, -111.97210)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.8650	Other (At-Grade) Single-Lane	1994	Before 1997. ICD estimated from Google Maps linework.
Eagle Mountain, UT Utah Co. United States	Turnberry Rd. / N Cunninghill Dr. (40.36990, -111.97247)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Phoenix, AZ Maricopa Co. United States	Pointe Pkwy. / S 48th St. (33.37162, -111.97410)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Multilane (2 Lane, unspecified)	2000
Eagle Mountain, UT Utah Co. United States	E Rock Creek Rd. / Clear Rock Rd. (40.36416, -111.97453)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Paradise Valley, AZ Maricopa Co. United States	E McDonald Dr. / N Echo Canyon Pkwy. (33.52382, -111.97471)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways 39.6240	Other (At-Grade) Single-Lane	2014	Elliptical shaped. ICD = 130 ft x 102 ft.
Riverton, UT Salt Lake Co. United States	Hamilton View Rd. / W Chamonix Way (40.50497, -111.97475)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.2432	Other (At-Grade) Single-Lane	2007	Bypass lane on northwest leg. Year Completed estimated (2007-2009). ICD estimated from Google Maps linework.
Helena, MT Lewis and Clark Co. United States	Saddle Dr. / Colonial Dr. (46.57319, -111.97703)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.1246	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Layton, UT Davis Co. United States	W 1425 N / Layton Hills Pkwy. (41.08067, -111.97839)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.0080	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Eagle Mountain, UT Utah Co. United States	N Ridge Loop W / E Ridge Route Rd. / N Cedar Springs Rd. / Quarter Mile Dr. (40.36434, -111.97944)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
South Jordan, UT Salt Lake Co. United States	W Parkway Plaza Dr. / District Main Dr. (40.54046, -111.98067)	Other Existing	Uncontrolled None	3 Approaches 0 Driveways 24.5059	Other (At-Grade) Single-Lane	2006	No splitter island on north leg. No yield signs. ICD estimated from Google Maps linework.
West Jordan, UT Salt Lake Co. United States	S Cobble Ridge Dr. / W Castle Pines Way (40.62410, -111.98247)	Other Existing	One-Way/Two-Way Stop None	4 Approaches 0 Driveways 26.2883	Other (At-Grade) Single-Lane	1998	No splitter islands; unmarked pedestrian crossings through circulatory roadway. ICD estimated from Google Maps linework.
Idaho Falls, ID Bonneville Co. United States	E Iona Rd. / 25th E (43.52586, -111.98394)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2006).
Idaho Falls, ID Bonneville Co. United States	E Lincoln Rd. / E Hitt Rd. (N 25th) (43.51143, -111.98410)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2001	Right-turn-only lane on west leg. Year Completed estimated (1992-2003). Converted from single-lane to multilane in 2018. 21442
Phoenix, AZ Maricopa Co. United States	E. Cotton Center Blvd. / S. 44th Pl. (33.40279, -111.98790)	Other Existing	Unknown Unknown	0 Approaches 0 Driveways 163.5163	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Riverdale, UT Weber Co. United States	500 W / Pacific Ave. (41.18601, -111.98880)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.7623	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
South Jordan, UT Salt Lake Co. United States	Blue Mesa Way / Lake Bridge Dr. / Braidwood Dr. (40.55113, -111.98904)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.4843	Other (At-Grade) Single-Lane	2007	Minimal splitter islands. ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	E Madison St. / (parking) (33.44625, -111.98911)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2011	Accommodates WB-67 truck deliveries to the Phoenix Sky Train terminal. Part of Phoenix Sky Harbor off-site parking facility. Year Completed estimated (2011-2012).
Eagle Mountain, UT Utah Co. United States	Ruby Valley Dr. / White Ash Dr. (40.35960, -111.98924)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands on east and west legs.
Phoenix, AZ Maricopa Co. United States	N. 43rd St. / E. Stanford Dr. (33.51700, -111.98930)	Traffic Calming Circle Existing	All-Way Yield None	0 Approaches 0 Driveways 46.7997	Other (At-Grade) Single-Lane	2005	Mini-roundabout ICD estimated from Google Maps linework.
Ogden, UT Weber Co. United States	W 2nd St. / Stewart Dr. (41.25915, -111.99347)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 57.9120	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Constructed initially as multilane with unstriped circulatory roadway and undesignated lanes. Circulatory roadway striping added 2011. Converted from multilane to single-lane 2017-2018. 21442.
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.
Pleasant View, UT Weber Co. United States	W. Pleasant View Dr. / Elberta St. / 700 W St. (41.31987, -111.99390)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.3642	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	E Stanford Dr. / N 40th St. (33.51726, -111.99524)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.6512	Other (At-Grade) Single-Lane	2015
Riverdale, UT Weber Co. United States	4400 S / 700 W (41.18214, -111.99580)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.7640	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Desert View, AZ Maricopa Co. United States	E Lone Cactus Dr. / N Aviano Way (33.68254, -111.99673)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2007	30 foot wide single, circulating lane and absent of a truck apron. Year Completed estimated (2006-2007).
South Jordan, UT Salt Lake Co. United States	Daybreak View Pkwy. (11400 South) / Kestrel Ridge Rd. (40.54686, -111.99760)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 133.4084	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Functional Class: Arterial ICD estimated from Google Maps linework.
Ogden, UT Weber Co. United States	W 2nd St. / S Depot Dr. (41.25886, -111.99799)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 59.4360	Other (At-Grade) Single-Lane	2003	Right-turn only lane on south leg. Constructed initially as multilane with unstriped circulatory roadway and undesignated lanes. Circulatory roadway striping added 2011.
Riverdale, UT Weber Co. United States	River Park Dr. / 900 W (41.17318, -111.99900)	Roundabout Existing	All-Way Yield Other	3 Approaches 0 Driveways 53.3400	Other (At-Grade) Multilane (2 Lane, unspecified)	2001	Raised crosswalks.
South Jordan, UT Salt Lake Co. United States	South Jordan Pkwy. / Oquirrh Lake Rd. (40.56217, -111.99981)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 65.3279	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Year Completed estimated (2007-2009). ICD estimated from Google Maps linework.
Riverdale, UT Weber Co. United States	River Park Dr. / Sams Club access (41.17197, -112.00210)	Roundabout Existing	All-Way Yield Other	3 Approaches 0 Driveways 53.3400	Other (At-Grade) Multilane (2 Lane, unspecified)	2001	Raised crosswalks.
Maricopa, AZ Pinal Co. United States	W Marion May Ln. (33.05054, -112.00216)	Traffic Calming Circle Existing	Uncontrolled None	2 Approaches 0 Driveways 27.4317	Other (At-Grade) Single-Lane	2007	No splitter islands.
Maricopa, AZ Pinal Co. United States	W Dennis Ln. (33.04972, -112.00217)	Traffic Calming Circle Existing	Uncontrolled None	2 Approaches 0 Driveways 27.4317	Other (At-Grade) Single-Lane	2007	No splitter islands.
Herriman, UT Salt Lake Co. United States	W Wagon Train Dr. / Legacy Ranch Blvd. / S Copper Ln. / Oregon Trail Way W (40.52603, -112.00268)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.0363	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2003-2004). ICD estimated from Google Maps linework.
Paradise Valley, AZ Maricopa Co. United States	E Stanford Dr. / N Palo Cristi Rd. (33.51726, -112.00408)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.8600	Other (At-Grade) Single-Lane	2015	Painted splitter island on south leg.
South Jordan, UT Salt Lake Co. United States	South Jordan Pkwy. / Silver Mine Rd. / S Lake Ave. (40.56218, -112.00513)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 64.4206	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Year Completed estimated (2010-2011). ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	N Black Mountain Blvd. / (dog park access) (33.67634, -112.00517)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.7072	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	https://www.azcentral.com/story/news/local/phoenix/2016/03/11/6-major-road-construction-projects-phoenix-watch-year/81439492/ ICD estimated from Google Maps linework.
West Jordan, UT Salt Lake Co. United States	4800 W / 7600 S (40.61269, -112.00540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.8260	Other (At-Grade) Single-Lane	2008	Fourth leg added. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Helena, MT Lewis and Clark Co. United States	N Washington St. / Frontage Dr. (46.62005, -112.00546)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 50.2920	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011).
South Jordan, UT Salt Lake Co. United States	Daybreak View Pkwy. (11400 South) / Oakmond Rd. (40.54534, -112.00610)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 60.8066	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Functional Class: Arterial ICD estimated from Google Maps linework.
Ogden, UT Weber Co. United States	S 1140 W / S 2nd St. (41.25801, -112.00680)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 59.4360	Other (At-Grade) Single-Lane	2006
West Valley, UT Salt Lake Co. United States	Lake Park Blvd. / S 4800 W (40.71236, -112.00900)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.5070	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	ICD estimated from Google Maps linework.
West Jordan, UT Salt Lake Co. United States	Morning Laurel Ln. / Meadow Lily Ln. (40.58650, -112.00915)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.7681	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Riverdale, UT Weber Co. United States	4400 S / 1250 W (41.18283, -112.01040)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.5615	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Helena, MT Lewis and Clark Co. United States	SR 279 (Lincoln Rd. E) / I-15 NB Ramps (46.70444, -112.01118)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 32.0040	Freeway Ramps (Grade-Separated) Single-Lane	2022	Raindrop shaped. Right-turn-only lane on south leg. Year Completed estimated (2021-2024).
Riverdale, UT Weber Co. United States	4400 S / Cozy Dale Dr. (41.18320, -112.01220)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.3590	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
West Valley, UT Salt Lake Co. United States	Lake Park Blvd. / Highbury Pkwy. (40.71235, -112.01350)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 64.0080	Other (At-Grade) Multilane (2 Lane, unspecified)	2008
Eagle Mountain, UT Utah Co. United States	E Eagle Mountain Blvd. / N Sweetwater Rd. (40.30679, -112.01476)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 62.4840	Other (At-Grade) Single-Lane	1995	Year Completed estimated (1993-1997).
Riverdale, UT Weber Co. United States	4400 S / Airport Rd. (41.18354, -112.01520)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.8531	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
West Valley City, UT Salt Lake Co. United States	Lake Park Blvd. / S 5370 W (40.71239, -112.01958)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 45.2647	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
West Valley, UT Salt Lake Co. United States	Daybury Dr. / Highbury Pkwy. (40.70805, -112.02010)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Single-Lane	2008
Helena, MT Lewis and Clark Co. United States	Lincoln Rd. / N Montana Ave. (46.70444, -112.02096)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.ktvh.com/news/lincoln-road-roundabout-opens-to-drivers
West Valley, UT Salt Lake Co. United States	Lake Park Blvd. / Daybury Dr. (40.71107, -112.02180)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.3400	Other (At-Grade) Multilane (2 Lane, unspecified)	2008
West Jordan, UT Salt Lake Co. United States	5600 W / Highlands Loop Rd. (40.61263, -112.02437)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.7992	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	ICD estimated from Google Maps linework.
Cottonwood, AZ Yavapai Co. United States	Mingus Ave. / Willard St. (34.73954, -112.02733)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.3875	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
West Jordan, UT Salt Lake Co. United States	7800 S / Highlands Loop Rd. (40.60945, -112.02826)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.1479	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	ICD estimated from Google Maps linework.
Roy, UT Weber Co. United States	W 4000 S / 2175 W (41.19059, -112.03239)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.1529	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.