Roundabouts Database

124 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
Nampa, ID
Canyon Co.
United States 		E Franklin Rd. / Star Rd. / N Robinson Rd.
(43.60497, -116.49357) 		Roundabout
Removed 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Single-Lane 		2012 Roundabout removed 2020 in conjunction with construction of Amazon center. Original roundabout completed 2012 and had right-turn-only lanes on north and south legs.
Boise, ID
Ada Co.
United States 		E Fort St. / E Reserve St.
(43.61355, -116.19070) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.0470 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Eagle, ID
Ada Co.
United States 		E Colchester Dr. / E Fishing Creek Dr. / S Cliff Brook Ln.
(43.66616, -116.34462) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
Eagle, ID
Ada Co.
United States 		E Colchester Dr. / E Eagles Gate Dr.
(43.66859, -116.35005) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2014 Year Completed estimated (2013-2014).
Chubbuck, ID
Bannock Co.
United States 		E Chubbuck Rd. / Sacajawea Dr.
(42.92042, -112.44502) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.2351 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Nampa, ID
Canyon Co.
United States 		E Amity Rd. / S Robinson Blvd.
(43.56137, -116.49376) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.5418 		Other (At-Grade)
Single-Lane 		2019 Completed in May 2019. Initial build is 160' ICD, expandible outward to 2x1 (160'x180') in the future. ICD estimated from Google Maps linework.
Emmett, ID
Gem Co.
United States 		E 4th St. / S Johns Ave.
(43.87188, -116.49278) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.2880 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2021 https://www.idahopress.com/emmett/news/new-roundabouts-may-require-some-pedestrian-and-driver-attention/article_17cceadd-1eb7-5959-8c8b-697d05289a4e.html
Emmett, ID
Gem Co.
United States 		E 12th St. / S Johns Ave.
(43.86461, -116.49276) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.2880 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2021 https://www.idahopress.com/emmett/news/new-roundabouts-may-require-some-pedestrian-and-driver-attention/article_17cceadd-1eb7-5959-8c8b-697d05289a4e.html
Cascade, ID
Valley Co.
United States 		Discovery Dr. / Village Dr. / Arling Center Ct. / (parking)
(44.66944, -116.12408) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2005 Racetrack shaped. ICD = 150 ft x 120 ft.
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
Boise, ID
Ada Co.
United States 		Crescent Rim Dr. / Eastover Terr.
(43.60307, -116.21526) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
61.4047 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2013 ICD estimated from Google Maps linework.
Coeur d'Alene, ID
Kootenai Co.
United States 		College Dr. / W River Ave.
(47.67912, -116.79816) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.5566 		Other (At-Grade)
Single-Lane 		2011 One of three roundabouts in North Idaho College Education Corridor. ICD estimated from Google Maps linework.
Coeur d'Alene, ID
Kootenai Co.
United States 		College Dr. / Hubbard Ave.
(47.68015, -116.79538) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.7519 		Other (At-Grade)
Single-Lane 		2012 One of three roundabouts in North Idaho College Education Corridor. Year Completed estimated (2011-2013). ICD estimated from Google Maps linework.
Chubbuck, ID
Bannock Co.
United States 		Chubbuck Rd. / Philbin Rd.
(42.92054, -112.49601) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://localnews8.com/news/idaho/2022/04/11/philbin-chubbuck-road-intersection-to-close-for-roundabout-installation/
Nampa, ID
Canyon Co.
United States 		Cherry Ln. / N Idaho Center Rd. / N Can Ada Rd.
(43.61960, -116.51332) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		2023 https://www.facebook.com/cityofnampa.us/posts/pfbid01GwhiVMxbiDrKP67dQPCeqSCxBAPfqshgLEvruyRWwiVFBPnSGJoAT37JMNEn2NUl
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.
Lewiston, ID
Nez Perce Co.
United States 		Burrell Ave. / 10th St.
(46.37674, -116.98085) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.2880 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2023 https://www.bigcountrynewsconnection.com/idaho/roundabout-at-intersection-of-10th-and-burrell-in-lewiston-open-ahead-of-schedule/article_0bb0faba-e2d5-11ed-94af-bbe6e3f10fea.html
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.
Nampa, ID
Canyon Co.
United States 		Airport Rd. / N Robinson Blvd.
(43.58690, -116.49334) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2023
Coeur dAlene, ID
Kootenai Co.
United States 		4th St. / Margaret Ave.
(47.71537, -116.77880) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.1602 		Other (At-Grade)
Single-Lane 		2003 Near high school. ICD estimated from Google Maps linework.
Dalton Gardens, ID
Kootenai Co.
United States 		4th St. / Hanley Ave.
(47.72981, -116.77610) 		Roundabout
Existing 		All-Way Yield
Active Pedestrian Warning (flashing yellow) 		4 Approaches
0 Driveways
32.1335 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Rexburg, ID
Madison Co.
United States 		2nd W. / 4th S.
(43.81770, -111.78950) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.1941 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 ICD estimated from Google Maps linework.
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.
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.