Roundabouts Database

29465 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
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.
Idaho Falls, ID
Bonneville Co.
United States 		S Boulevard / N Corner Ave. / Elm St.
(43.48859, -112.03375) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
2 Driveways
32.9270 		Other (At-Grade)
Single-Lane 		2018 Fourth leg is departure only. ICD estimated from Google Maps linework.
West Jordan, UT
Salt Lake Co.
United States 		6000 W / Brush Fork Dr.
(40.59849, -112.03379) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.4847 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
West Jordan, UT
Salt Lake Co.
United States 		6000 W / 8200 S
(40.60221, -112.03385) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.6444 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
West Jordan, UT
Salt Lake Co.
United States 		W 8600 S / 6000 W
(40.59520, -112.03394) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2015-2016).
Cottonwood, AZ
Yavapai Co.
United States 		AZ 89A / Verde Heights Dr.
(34.73999, -112.03740) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2009 Series of 5 roundabouts.
West Jordan, UT
Salt Lake Co.
United States 		8200 S / Fall Oak Dr.
(40.60225, -112.03816) 		Roundabout
Existing 		All-Way Yield
Active Pedestrian Warning (flashing yellow) 		4 Approaches
0 Driveways
27.2037 		Other (At-Grade)
Single-Lane 		2014 Reduced speed school zone flashers. Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
West Jordan, UT
Salt Lake Co.
United States 		6265 W (Fall Oak Dr.) / Fall Water Dr. / 7965 W
(40.60635, -112.03860) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
47.1501 		Other (At-Grade)
Single-Lane 		2019 5-leg roundabout first in West Jordan City. ICD estimated from Google Maps linework.
South Mountain, AZ
Maricopa Co.
United States 		S 20th St. / E Euclid St.
(33.36686, -112.04021) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.2024 		Other (At-Grade)
Single-Lane 		2015 Installed initially as traffic calming circle in 2007-2009. Converted to roundabout 2014-2015.
Idaho Falls, ID
Bonneville Co.
United States 		Memorial Dr. / Riverside Dr. / E St.
(43.49716, -112.04057) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.5861 		Other (At-Grade)
Single-Lane 		2012 Right-turn-only lane on west leg. ICD estimated from Google Maps linework.
Syracuse, UT
Davis Co.
United States 		Gentile St. (W 3700 S) / S Bluff Rd.
(41.06024, -112.04083) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2020 https://www.facebook.com/crsengineers/videos/check-out-the-roundabout-at-bluff-and-gentile-st-in-syracuse-ut-the-roundabout-w/1573308289523790/
Maricopa, AZ
Pinal Co.
United States 		Cobblestone Farms Dr. / W Struebing Dr.
(33.08548, -112.04256) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
57.3024 		Other (At-Grade)
Single-Lane 		2006 No splitter islands or truck apron. Pedestrian crossings adjacent to circulatory roadway.
West Jordan, UT
Salt Lake Co.
United States 		8600 S / 6400 W
(40.59520, -112.04340) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.7410 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
West Jordan, UT
Salt Lake Co.
United States 		6400 W / Annandale Way
(40.60646, -112.04343) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.1760 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
West Jordan, UT
Salt Lake Co.
United States 		6400 W / 8200 S
(40.60223, -112.04347) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.8308 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Cottonwood, AZ
Yavapai Co.
United States 		AZ 89A / Groseta Ranch Rd.
(34.74706, -112.04510) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
46.1235 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Clinton, UT
Davis Co.
United States 		1300 N / 1000 W
(41.13261, -112.04527) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
19.7902 		Other (At-Grade)
Single-Lane 		2008 Year Completed estimated (2007-2009). ICD estimated from Google Maps linework.
Syracuse, UT
Davis Co.
United States 		S 1000 W / W 2700 S
(41.07468, -112.04539) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
30.6119 		Other (At-Grade)
Single-Lane 		2008 Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Clarkdale, AZ
Yavapai Co.
United States 		Scenic Dr. / Alamos Dr.
(34.74635, -112.04608) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2012). Initially completed with painted splitter islands. Raised splitter islands added 2012-2014.
Idaho Falls, ID
Bonneville Co.
United States 		Carriagegate Ln. / Nottingham Ln.
(43.46096, -112.04641) 		Other
Existing 		Uncontrolled
None 		4 Approaches
0 Driveways
25.1400 		Other (At-Grade)
Single-Lane 		2005 No traffic control. ICD estimated from Google Maps linework.
Idaho Falls, ID
Bonneville Co.
United States 		Bridgeport Dr. / River Walk Dr.
(43.48855, -112.04801) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.4610 		Other (At-Grade)
Single-Lane 		2007 Originally built without splitter islands. Splitter islands added to north and west legs in 2016. ICD estimated from Google Maps linework.
Roy, UT
Weber Co.
United States 		4800 S / 2875 W
(41.17624, -112.04925) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.8677 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2016 ICD estimated from Google Maps linework.
Ak-Chin Village, AZ
Pinal Co.
United States 		N Ban Ln. / (unknown)
(33.02543, -112.04956) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
1 Driveways
48.7680 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 Yield-controlled right-turn bypass lane on south leg. First of several planned roundabouts on the Ak-Chin Indian Community casino expansion.
Idaho Falls, ID
Bonneville Co.
United States 		S Utah Ave. / Bridgeport Dr.
(43.48859, -112.04979) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
47.6574 		Other (At-Grade)
Single-Lane 		2002 Eagle Rock Fountain in center island. Roundabout was partially reconstructed with geometric improvements in 2014. Original construction was in 2002. ICD estimated from Google Maps linework.
Cottonwood, AZ
Yavapai Co.
United States 		AZ 89A / Lisa St. / Lincoln Dr.
(34.75449, -112.05400) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.0444 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Clinton, UT
Davis Co.
United States 		2300 N / 1500 W
(41.14715, -112.05485) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
31.4775 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Rose Canyon, UT
Salt Lake Co.
United States 		Spring Canyon Dr. / Buck Ridge Dr. / S New Maple Dr.
(40.47981, -112.05539) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Rose Canyon, UT
Salt Lake Co.
United States 		Spring Canyon Dr. / W Windy Ridge Dr.
(40.48589, -112.05562) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
West Valley City, UT
Salt Lake Co.
United States 		Collie Dr. / Dalmatian St. / Labrador Cir.
(40.70477, -112.05642) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2004
Rose Canyon, UT
Salt Lake Co.
United States 		Butterfield Park Way / Spring Canyon Dr.
(40.49171, -112.05652) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on side street.
West Jordan, UT
Salt Lake Co.
United States 		W 7800 S / New Sycamore Dr.
(40.60940, -112.05842) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2019 Yield-controlled right-turn bypass lane on east leg. Fourth leg stubbed. Year Completed estimated (2018-2019).
Cottonwood, AZ
Yavapai Co.
United States 		AZ 89A / Avenida Centerville
(34.75854, -112.05880) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.0983 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
West Valley City, UT
Salt Lake Co.
United States 		Antelope Rd. / Hawker Ln.
(40.70728, -112.05997) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		2001 Year Completed estimated (1997-2002).
Plain City, UT
Weber Co.
United States 		Stillcreek Pkwy. / 3020 N
(41.31462, -112.06052) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2008 Year Completed estimated (2006-2009).
West Jordan, UT
Salt Lake Co.
United States 		New Sycamore Dr. / S Stokesley Dr. / Cottage Point Dr.
(40.60715, -112.06190) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.8286 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Clarkdale, AZ
Yavapai Co.
United States 		Clarkdale Pkwy. / Mountain Gate Dr.
(34.76500, -112.06276) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2003-2006).
Syracuse, UT
Davis Co.
United States 		2019 W 1900 S
(41.08617, -112.06344) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
13.5029 		Other (At-Grade)
Single-Lane 		2006 Painted splitter islands with crosswalks that extend through the islands without a break in the painted islands. Year Completed estimated (2005-2008). ICD estimated from Google Maps linework.
Helena, MT
Lewis and Clark Co.
United States 		Lincoln Rd. / Green Meadow Dr.
(46.70420, -112.06374) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.0466 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Clarkdale, AZ
Yavapai Co.
United States 		AZ 89A / Cement Plant Rd. / Clarkdale Pkwy.
(34.76220, -112.06416) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 Series of 5 roundabouts. Yield-controlled right-turn bypass lane on east leg. Year Completed estimated (2007-2009).
Syracuse, UT
Davis Co.
United States 		S Bluff Rd. / S 2000 W / W 2700 S
(41.07470, -112.06459) 		Roundabout
Existing 		All-Way Yield
None 		6 Approaches
0 Driveways
33.3129 		Other (At-Grade)
Single-Lane 		2000 Painted splitter islands. Year Completed estimated (1997-2003). ICD estimated from Google Maps linework.
Syracuse, UT
Davis Co.
United States 		W Parkview Dr. / S 2000 W
(41.06461, -112.06470) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
West Jordan, UT
Salt Lake Co.
United States 		W Aberford Dr. / Cricket Ln.
(40.60349, -112.06737) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.3896 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
West Jordan, UT
Salt Lake Co.
United States 		New Sycamore Dr. / Cricket Ln.
(40.60686, -112.06772) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.1085 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		E. Mountain View Rd. / N. Central Ave.
(33.57510, -112.07360) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		0 Approaches
0 Driveways
16.9162 		Other (At-Grade)
Single-Lane 		2006 Mini-roundabout ICD estimated from Google Maps linework.
West Point, UT
Davis Co.
United States 		W 800 N / N 3000 W
(41.12535, -112.08378) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2015-2016).
Clinton, UT
Davis Co.
United States 		W 1300 N / N 3000 W
(41.13262, -112.08379) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2016
West Point, UT
Davis Co.
United States 		W 550 N / N 3000 W
(41.12179, -112.08380) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2015-2016).
Clinton, UT
Davis Co.
United States 		2300 N / 3000 W
(41.14708, -112.08387) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.4775 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
Syracuse, UT
Davis Co.
United States 		W 700 S / S 3000 W
(41.10366, -112.08391) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2015-2016).
Clinton, UT
Davis Co.
United States 		2300 N / N Cranefield Rd.
(41.14713, -112.09642) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.3768 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		W Montebello Ave. / (shopping center parking)
(33.51961, -112.09810) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.8412 		Other (At-Grade)
Single-Lane 		2007 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.
Phoenix, AZ
Maricopa Co.
United States 		23rd Ave. / W. Osborn Rd.
(33.48775, -112.10840) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
15.9372 		Other (At-Grade)
Single-Lane 		2005 Small roundabout. ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		Happy Valley Rd. / I-17 NB Ramps
(33.71291, -112.11477) 		Roundabout
Removed 		All-Way Yield
None 		4 Approaches
0 Driveways
64.0077 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2020 Initially constructed 2002, revised 2005. Removed in 2020, replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw. https://azdot.gov/adot-blog/requiem-roundabouts-least-ones-happy-valley-road 21442
Cordes Junction, AZ
Yavapai Co.
United States 		Cordes Lakes Rd. / I-17 NB Off-ramp
(34.32691, -112.11991) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.4800 		Freeway Ramps (Grade-Separated)
Single-Lane 		2013 date: https://www.azdot.gov/mobile/media/news/2013/07/24/modernized-cordes-junction-traffic-interchange-aids-local-regional-travel ICD estimated from Google Maps linework.