Roundabouts Database

29549 Results

Search by location, intersection, and comments with the Quick Search below. You can search all other attributes by clicking Advanced Search. Sort results by clicking the headers of any column. Click the Intersection name for a details and aerial view. Search results pages can be bookmarked. Results can be exported to KML for viewing in Google Earth.


Search Advanced Search Export as KML
City, State
County
Country 		Intersection
(Lat, Lng) 		Type
Status 		Control Type / Other Control Type Approaches / Driveways / ICD (m) Functional Class /
LaneType 		Year Completed Comments
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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 		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.
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.
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/
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.
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.
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.
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.
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 		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).
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 		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.
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.
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.
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.
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 		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.
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
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 		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
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.
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.
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).
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
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.
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 / 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.
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.
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.
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
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.
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).
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.
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.
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.
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.
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.
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.
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.
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.
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. / 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.
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.
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.
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).
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.
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
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 		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.
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 		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.
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 		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).
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.
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.
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.
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
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).
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.
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.
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.
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.
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.
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.
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.
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.
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 		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 		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.
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).
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. / (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.
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.
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.
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
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.
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
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
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
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.
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.
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).
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
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.
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
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.
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.
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.
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.