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
Baton Rouge, LA
East Baton Rouge Par.
United States 		Capitol Lake Rd. / Capitol Access Rd.
(30.45818, -91.18621) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2016
Bowling Green, MO
Pike Co.
United States 		US 61 Business / Sharry St. / Town Center Dr. / (unknown)
(39.33272, -91.18290) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
57.2748 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2007-2009). ICD estimated from Google Maps linework.
Baton Rouge, LA
East Baton Rouge Par.
United States 		Capitol Access Rd. / Capitol Lake Dr.
(30.45808, -91.18278) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2016
Baton Rouge, LA
East Baton Rouge Par.
United States 		N Stadium Rd. / Field House Dr.
(30.41398, -91.18246) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2006 On campus of Louisiana State University.
Warrenton, MO
Warren Co.
United States 		Laguna Linda Ln. / W Veterans Memorial Pkwy. / I-70 EB Ramps
(38.81933, -91.17764) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
40.9435 		Freeway Ramps (Grade-Separated)
Single-Lane 		2018 Elliptical shape. ICD estimated from Google Maps linework.
Warrenton, MO
Warren Co.
United States 		Laguna Linda Ln. / I-70 WB Ramps
(38.82099, -91.17761) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
43.7340 		Freeway Ramps (Grade-Separated)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Baton Rouge, LA
East Baton Rouge Par.
United States 		Dalrymple Dr. / Isaac Cline Dr. / W Lakeshore Dr.
(30.41647, -91.17170) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.7188 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Warrenton, MO
Warren Co.
United States 		W Veterans Memorial Pkwy / Booneslick Rd.
(38.81902, -91.16957) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.2215 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Highlands/Perkins, LA
East Baton Rouge Par.
United States 		L'Auberge Ave. / River Rd. (west)
(30.34725, -91.15325) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
53.5954 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Burlington, IA
Des Moines Co.
United States 		West Ave. / W Burlington Ave.
(40.80061, -91.15269) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
37.0678 		Other (At-Grade)
Single-Lane 		2017 Merging right-turn bypass lane on east leg. ICD estimated from Google Maps linework.
Highlands/Perkins, LA
East Baton Rouge Par.
United States 		L'Auberge Ave. / River Rd. (east)
(30.34668, -91.14825) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
53.5957 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Dyersville, IA
Delaware Co.
United States 		CR X49 (332nd Ave.) / W 1st Ave. / 210th St.
(42.48441, -91.14450) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.dyersvillecommercial.com/news/new-roundabout-officially-open/image_90cf973c-23eb-59eb-9a68-62a9bf4de883.html
Highlands/Perkins, LA
East Baton Rouge Par.
United States 		River Rd. / L'Auberge Crossing Dr.
(30.34331, -91.14428) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
53.5976 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Prairie du Chien, WI
Crawford Co.
United States 		S Marquette Rd. / E Blackhawk Ave.
(43.05193, -91.14100) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		4 Approaches
0 Driveways
40.1459 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Series of three roundabouts. Nearby at-grade rail crossing. ICD estimated from Google Maps linework.
Prairie du Chien, WI
Crawford Co.
United States 		S Marquette Rd. / E Wisconsin St.
(43.05037, -91.14098) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		4 Approaches
0 Driveways
33.1649 		Other (At-Grade)
Single-Lane 		2014 Series of three roundabouts. Nearby at-grade rail crossing. ICD estimated from Google Maps linework.
Prairie du Chien, WI
Crawford Co.
United States 		S Marquette Rd. / E Iowa St.
(43.04911, -91.14094) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		4 Approaches
0 Driveways
41.8934 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Series of three roundabouts. Nearby at-grade rail crossing. ICD estimated from Google Maps linework.
Baton Rouge, LA
East Baton Rouge Par.
United States 		Lobdell Ave. / Government St. / Independence Blvd.
(30.44534, -91.11159) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2020 Add-lane right-turn bypass lanes on east, west, and south legs; yielding right-turn bypass lane on north leg. https://www.wafb.com/2020/07/29/new-roundabout-government-lobdell-causing-headache-some-drivers/.
Baton Rouge, LA
East Baton Rouge Par.
United States 		The Grove Blvd. / (parking)
(30.38708, -91.07573) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2018
Muscatine, IA
Muscatine Co.
United States 		Cedar St. / Logan St.
(41.43575, -91.06473) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.7570 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Brownsfield/Central, LA
East Baton Rouge Par.
United States 		Gurney Rd. / Joor Rd.
(30.56104, -91.04840) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.7105 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
Wright City, MO
Warren Co.
United States 		Lexington Ave. / Sturbridge Dr.
(38.81909, -91.04345) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
Muscatine, IA
Muscatine Co.
United States 		Mulberry Ave. / 2nd St.
(41.42371, -91.04141) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.youtube.com/watch?v=nyJfLuvBF_A
Brownsfield/Central, LA
East Baton Rouge Par.
United States 		Sullivan Rd. / Gurney Rd. / (school access)
(30.56124, -91.04099) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.7673 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Baton Rouge, LA
East Baton Rouge Par.
United States 		Lovett Rd. / (Magnolia Square subdivision)
(30.52095, -91.03818) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
18.5192 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Baton Rouge, LA
East Baton Rouge Par.
United States 		Stumberg Ln. / Womans Way
(30.38264, -91.03593) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
59.4360 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2012 Year Completed estimated (2011-2013).
Union, MO
Franklin Co.
United States 		Independence Dr. / W Main St.
(38.44642, -91.02549) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.7385 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2012-2013). https://www.unionmissouri.org/document_center/talk_of_the_town_winter_2013.pdf ICD estimated from Google Maps linework.
Union, MO
Franklin Co.
United States 		Independence Dr. / N Washington Ave. (MO A)
(38.46062, -91.01237) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.9265 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2012-2013). https://www.unionmissouri.org/document_center/talk_of_the_town_winter_2013.pdf ICD estimated from Google Maps linework.
Holy Cross, IA
Dubuque Co.
United States 		US 52 / Holy Cross Rd.
(42.59513, -90.98652) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 https://www.dyersvillecommercial.com/news/roundabout-completed-outside-of-holy-cross/image_abf4ba03-bd15-5801-928e-39c6e5ff2bfb.html
Union, MO
Franklin Co.
United States 		Prairie Dell Rd. / Denmark Rd.
(38.43101, -90.97237) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2015 Yield-controlled right-turn bypass lane with large radius on north leg. Entrance to college campus.
Puerto Villamil, Galápagos
Cantón Isabela
Ecuador 		Antonio Gil / Pepino
(-0.95869, -90.96267) 		Unknown
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Troy, MO
Lincoln Co.
United States 		S Lincoln Dr. / S 3rd St. / Old Moscow Mills Rd.
(38.96606, -90.95936) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.3592 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Troy, MO
Lincoln Co.
United States 		S Lincoln Dr. / US 61 SB Ramps
(38.96664, -90.95804) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
43.6444 		Freeway Ramps (Grade-Separated)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Troy, MO
Lincoln Co.
United States 		S Lincoln Dr. / Bueneman Ln. / US 61 NB Ramps
(38.96739, -90.95594) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
39.9296 		Freeway Ramps (Grade-Separated)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Prairieville, LA
Ascension Par.
United States 		LA 930 / Henry Rd.
(30.30593, -90.95578) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://moveascension.com/projects/ma-18-08/
Barksdale, WI
Bayfield Co.
United States 		STH 13 / US 2 WB Ramps
(46.58774, -90.95454) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.9645 		Freeway Ramps (Grade-Separated)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Union, MO
Franklin Co.
United States 		Denmark Rd. / Saint Andrews Dr.
(38.43079, -90.95348) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2018 https://www.emissourian.com/local_news/union/denmark-road-opens-to-traffic-project-is-nearly-finished/article_c0073fff-d446-5b9b-be14-d1bfef9abd1d.html
Prairieville, LA
Ascension Par.
United States 		SR 929 / Parker Rd.
(30.31358, -90.93913) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 https://www.weeklycitizen.com/story/news/local/2023/11/22/roundabout-near-new-prairieville-high-school-opens-to-traffic-ascension-parish-officials/71682751007/
Denham Springs, LA
Livingston Par.
United States 		Lockhart Rd. / Cockerham Rd. / Linder Rd.
(30.50846, -90.93534) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
31.8983 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 https://www.livingstonparishnews.com/new-roundabout/youtube_e2ce3f06-169f-11e8-bddf-bb3b21456b5b.html ICD estimated from Google Maps linework.
Denham Springs, LA
Livingston Par.
United States 		US 190 / Eden Church Rd.
(30.48333, -90.92654) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
42.1990 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Denham Springs, LA
Livingston Par.
United States 		Lockhart Rd. / Dunn Rd.
(30.50500, -90.92494) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2020 Year Completed estimated (2019-2021).
Denham Springs, LA
Livingston Par.
United States 		Juban Crossing Blvd. / (parking) (west)
(30.46981, -90.92283) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014
Denham Springs, LA
Livingston Par.
United States 		Juban Crossing Blvd. / (parking) (east)
(30.46981, -90.92104) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014
Gonzales, LA
Ascension Par.
United States 		LA 44 / Conway Village Blvd. / Waterview Ave.
(30.18121, -90.92016) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2020 Year Completed estimated (2019-2021).
Denham Springs, LA
Livingston Par.
United States 		Crossing Way / Crossing Circle
(30.46747, -90.91999) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.2059 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 ICD estimated from Google Maps linework.
Gonzales, LA
Ascension Par.
United States 		Conway Village Blvd. / Parkside Way / Village Oaks Ave.
(30.18106, -90.91760) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2019).
Denham Springs, LA
Livingston Par.
United States 		Juban Rd. (LA 1026) / Buddy Ellis Rd.
(30.45957, -90.91627) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021 Year Completed estimated (2021-2022).
Prairieville, LA
Ascension Par.
United States 		Timberstone Dr. / Devall Rd. / Tigers Eye Stone Ave.
(30.29926, -90.89318) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2008
Sorrento, LA
Ascension Par.
United States 		LA 22 / LA 70
(30.16658, -90.88120) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2020 https://eminetra.com/newly-finished-roundabout-in-sorrento-one-of-many-planned-in-ascension-parish-ascension-new-orleans-louisiana/9042/
Wentzville, MO
St. Charles Co.
United States 		Schroeder Creek Blvd. / (high school access)
(38.81649, -90.86931) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
40.9451 		Other (At-Grade)
Single-Lane 		2016 Paving was done in late 2016, but fully completed in 2017 -- https://www.wentzvillemo.org/departments/public_works/schroeder_creek_boulevard_extension_project.php . ICD estimated from Google Maps linework.
Wentzville, MO
St. Charles Co.
United States 		Schroeder Creek Blvd. / William Dierberg Dr.
(38.82018, -90.86907) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.0819 		Other (At-Grade)
Single-Lane 		2016 Paving was done in late 2016, but fully completed in 2017 -- https://www.wentzvillemo.org/departments/public_works/schroeder_creek_boulevard_extension_project.php . ICD estimated from Google Maps linework.
Flint Hill, MO
St. Charles Co.
United States 		CR P / US 61 NB Ramps / Service Rd.
(38.85292, -90.86827) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.6445 		Freeway Ramps (Grade-Separated)
Single-Lane 		2018 Under construction (almost finished) Aug 2018 (streetview) ICD estimated from Google Maps linework.
Gilmore, MO
St. Charles Co.
United States 		Pine Creek Dr. / Pine Creek Ct.
(38.83970, -90.86642) 		Other
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Viroqua, WI
Vernon Co.
United States 		US 14-US 61 / STH 27-STH 82 / CR T
(43.52202, -90.86531) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		2023 Elliptical shaped. ICD = 170 ft x 155 ft.
Wentzville, MO
St. Charles Co.
United States 		Wilmer Valley Dr. / Wilmer Ridge Dr.
(38.79278, -90.86444) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.2675 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Walker, LA
Livingston Par.
United States 		Walker South Rd. / I-12 EB Ramps
(30.46773, -90.86314) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
43.2352 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2017 ICD estimated from Google Maps linework.
Walker, LA
Livingston Par.
United States 		Walker South Rd. / I-12 WB Ramps
(30.47242, -90.86272) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
42.2038 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2017 ICD estimated from Google Maps linework.
Gilmore, MO
St. Charles Co.
United States 		S Church St. / I-70 WB Ramps
(38.80639, -90.85441) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2016 Year Completed estimated (2015-2016).
Port Vincent, LA
Ascension Par.
United States 		LA-28 / LA-431
(30.33152, -90.85329) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
29.8945 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Gilmore, MO
St. Charles Co.
United States 		Luetkenhaus Blvd. / Main Plaza Dr. / Wall St. / (parking)
(38.82013, -90.85000) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2012).
Port Vincent, LA
Livingston Par.
United States 		LA 16 (Petes Hwy.) / LA 447 (Walker South Rd.)
(30.35577, -90.84991) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2022
Peosta, IA
Dubuque Co.
United States 		Peosta St / NICC Dr
(42.44531, -90.84966) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
103.1146 		Other (At-Grade)
Single-Lane 		2012 Entrance to Northeast Iowa Community College ICD estimated from Google Maps linework.
Gilmore, MO
St. Charles Co.
United States 		Village Glen Dr. / Glengarry Dr.
(38.79407, -90.84755) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Gilmore, MO
St. Charles Co.
United States 		Glengarry Ct. / Kellerton Pl.
(38.79542, -90.84653) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Sparta, WI
Monroe Co.
United States 		S Black River St. (STH 27) / River Rd.
(43.93267, -90.82053) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.4248 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Wentzville, MO
St. Charles Co.
United States 		Prospect Rd. / I-64 EB Exit Ramp
(38.79596, -90.82043) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6717 		Freeway Ramps (Grade-Separated)
Single-Lane 		2008 Interchange replaced single at-grade intersection. Year Completed estimated (2008-2009).
Wentzville, MO
St. Charles Co.
United States 		Prospect Rd. / Corporate Pkwy. / I-64 WB Exit Ramp
(38.79597, -90.81810) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2008 Interchange replaced single at-grade intersection. Year Completed estimated (2008-2009).
Thibodaux, LA
Lafourche Par.
United States 		Ardoyne Rd. / Audubon Ave.
(29.78934, -90.80550) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 On Nicholls State University campus. https://www.facebook.com/HoumaTimes/posts/check-it-out-the-new-roundabout-on-campus-is-open-enjoy-this-how-to-video-from-n/2529969010358873/
O'Fallon, MO
St. Charles Co.
United States 		Paul Renaud Blvd. / Lake St Louis Blvd. / Curtis Ln.
(38.75382, -90.80034) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2017 Year Completed estimated (2017-2018).
O'Fallon, MO
St. Charles Co.
United States 		Preston Woods Pkwy. / Preston Woods Trl. / Flowering Ash Ln.
(38.74881, -90.79714) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2008-2009).
Portland, WI
Monroe Co.
United States 		STH 27 / STH 33
(43.74201, -90.79387) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2016
Sparta, WI
Monroe Co.
United States 		STH 16 / STH 71 / Hardwood Rd.
(43.94078, -90.78544) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.7996 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
O'Fallon, MO
St. Charles Co.
United States 		Springhurst Pkwy. / Spring Borough Dr.
(38.76123, -90.77537) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2005-2007).
Lake St Louis, MO
St. Charles Co.
United States 		Lake Saint Louis Blvd. / Veteran's Memorial Pkwy. / I-70 EB Ramps
(38.80322, -90.77073) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
67.0560 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2022
Maurepas, LA
Livingston Par.
United States 		LA-16 / LA-22
(30.26014, -90.76844) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
29.9163 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Houma, LA
Terrebonne Par.
United States 		Westside Blvd. / Enterprise Dr.
(29.60658, -90.76499) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.4206 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2016 http://www.providenceeng.com/projects/terrebonne-parish-roundabout ICD estimated from Google Maps linework.
Dubuque, IA
Dubuque Co.
United States 		US 52 (SW Arterial - Seippel Rd.) / Chesterfield Dr. / US 20 EB ramps
(42.47403, -90.75987) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2020 https://www.telegraphherald.com/news/tri-state/article_25dde05e-920f-5330-8d6f-356d16812f2d.html
O'Fallon, MO
St. Charles Co.
United States 		Hwy DD / Dalriada Blvd.
(38.74631, -90.75882) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Single-Lane 		2022 Right-turn-only lanes on southwest and northeast legs. Appears to be convertible to 2x1. https://www.sccmo.org/DocumentCenter/View/18378/OF_HIGHWAY-DD
O'Fallon, MO
St. Charles Co.
United States 		Connecting Rd. / Alta Mira Ct. / MO 364 WB Ramps
(38.76954, -90.74393) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Single-Lane 		2014
O'Fallon, MO
St. Charles Co.
United States 		Phoenix Pkwy. / Phoenix Dr. / Boardwalk Place Dr.
(38.74122, -90.73747) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5359 		Other (At-Grade)
Single-Lane 		2001 Year Completed estimated (1996-2002). ICD estimated from Google Maps linework.
O'Fallon, MO
St. Charles Co.
United States 		Phoenix Pkwy. / Redhawk Pkwy. / Red Hawk Pl.
(38.74510, -90.73630) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5341 		Other (At-Grade)
Single-Lane 		2001 Year Completed estimated (1996-2002). ICD estimated from Google Maps linework.
O'Fallon, MO
St. Charles Co.
United States 		Technology Dr. / Waterbury Falls Dr.
(38.71843, -90.69627) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (2002-2003). Southwest leg added 2008-2009.
O'Fallon, MO
St. Charles Co.
United States 		Technology Dr. / Progress Point Pkwy. / (parking)
(38.71685, -90.69499) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (2002-2003).
Weldon Spring, MO
St. Charles Co.
United States 		Weldon Spring Rd. / Technology Dr. / Siedentop Rd.
(38.71551, -90.68906) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2004 Painted splitter island on east leg. Year Completed estimated (2003-2004).
Dubuque, IA
Dubuque Co.
United States 		N Grandview Ave. / University Ave.
(42.49832, -90.68817) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
29.9396 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Dubuque, IA
Dubuque Co.
United States 		N Grandview Ave. / Delhi St. / Grace St.
(42.49682, -90.68791) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
20.2537 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Lancaster, WI
Grant Co.
United States 		US 61-STH 35 / STH 81
(42.81577, -90.68369) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2023
Weldon Spring, MO
St. Charles Co.
United States 		Technology Dr. / Meadows Pkwy. / Wolfrum Rd. / I-64 WB Exit Ramp
(38.70526, -90.67410) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9600 		Freeway Ramps (Grade-Separated)
Single-Lane 		Oval shaped. ICD = 200 ft x 180 ft. Built initially as 2x2 roundabout in 2005-2006. Concentric circulatory roadway striping. Converted to single lane using by striping out inner circulatory roadway lane and left entry lane on southwest leg 2020-2021.
Cottleville, MO
St. Charles Co.
United States 		Gutermuth Rd. / MO 364 EB Ramps
(38.73394, -90.66626) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2020 https://www.stltoday.com/suburban-journals/stcharles/portion-of-gutermuth-to-close-for-route-364-interchange-construction/article_392e1870-c917-5df1-82ab-d83cceca50b8.html
Jonesboro, AR
Craighead Co.
United States 		SR 163 (Harrisburg Rd.) / SR 158 (E Lawson Rd.)
(35.74871, -90.66603) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
56.3880 		Other (At-Grade)
Single-Lane 		2021 https://www.kait8.com/2021/06/22/new-roundabout-use-south-jonesboro/
Cottleville, MO
St. Charles Co.
United States 		Gutermuth Rd. / MO 364 WB Ramps
(38.73583, -90.66567) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2020 https://www.stltoday.com/suburban-journals/stcharles/portion-of-gutermuth-to-close-for-route-364-interchange-construction/article_392e1870-c917-5df1-82ab-d83cceca50b8.html
Cottleville, MO
St. Charles Co.
United States 		Gutermuth Rd. / (unknown)
(38.73697, -90.66532) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020
Dubuque, IA
Dubuque Co.
United States 		Kerper Blvd. / Kerper Ct.
(42.51518, -90.65500) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2023 https://www.kwwl.com/video/kerper-boulevard-roundabout-now-open-in-dubuque/video_c96b5eb0-5305-5b6f-8b06-be51094e84b7.html
Chesterfield, MO
St. Louis Co.
United States 		N Outer 40 Rd. / I-64 WB Exit Ramp
(38.67582, -90.65115) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 Year Completed estimated (2009-2010).
Jonesboro, AR
Craighead Co.
United States 		N Airport Rd. / Aggie Rd.
(35.84631, -90.65022) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2016
Wildwood, MO
St. Louis Co.
United States 		MO 109 / Main St.
(38.58163, -90.64350) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2019 Year Completed estimated (2019-2020).
Wildwood, MO
St. Louis Co.
United States 		MO 109 / MO 100 EB Ramps
(38.58348, -90.64292) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2019 Year Completed estimated (2019-2020).
Wildwood, MO
St. Louis Co.
United States 		MO 109 / MO 100 WB Ramps / Windsor Meadow Blvd.
(38.58501, -90.64241) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.2771 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2014 ICD estimated from Google Maps linework.
Wildwood, MO
St. Louis Co.
United States 		MO 109 / Pond Grover Loop Rd.
(38.59084, -90.64046) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.6729 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Year Completed estimated (2014-2015). ICD estimated from Google Maps linework.
Wildwood, MO
St. Louis Co.
United States 		Manchester Rd. / Village Hills Pkwy. / Taylor Rd.
(38.57818, -90.62749) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.4797 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (2002-2003). ICD estimated from Google Maps linework.
Wildwood, MO
St. Louis Co.
United States 		Old Fairway Dr. / Waterside Dr.
(38.57311, -90.62062) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.8135 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.