Roundabouts Database Index

29616 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
Coralville, IA Johnson Co. United States	E. 9th St. / Quarry Rd. (41.68176, -91.55988)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5714	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Opened August 15, 2006. ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	E 9th St. / E 2nd Ave. (41.68169, -91.56306)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.coralville.org/887/E-9th-Street
Coralville, IA Johnson Co. United States	E 7th St. / E 2nd Ave. (41.67892, -91.56378)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.7092	Other (At-Grade) Single-Lane	2019	Opened to traffic August 2019. East leg will re-open October 2019; north leg open to traffic summer 2020. ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	1st Ave. / Holiday Rd. (41.69276, -91.56655)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.8896	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Opened September 1, 2002. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	(unknown) / (unknown) (41.72647, -91.56882)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2023
Coralville, IA Johnson Co. United States	N Liberty Rd. NE / Forevergreen Rd. (41.72584, -91.57089)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.johnsoncountyiowa.gov/news/secondary-roads/2022-04-21/construction-north-liberty-and-forevergreen-roads-roundabout-begins
Marion, IA Linn Co. United States	29th Ave. / 35th St. (42.05043, -91.57448)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 22.1714	Other (At-Grade) Single-lane w/ Traversable Central Island	2016	Year Completed estimated (2016-2017). ICD estimated from Google Maps linework.
North Liberty, IA Johnson Co. United States	North Liberty Rd. NE / Dubuque St. NE (41.73359, -91.57568)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.7807	Other (At-Grade) Single-Lane	2016	https://northlibertyiowa.org/2016/09/26/trail-closure-on-dubuque-street-trail-roundabout-nearing-completion/# ICD estimated from Google Maps linework.
Marion, IA Linn Co. United States	35th St. / Tower Terrace Rd. (42.06130, -91.57655)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.9213	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	Fourth leg is stubbed for future expansion. ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	12th Av. / Holiday Rd. (41.69491, -91.58287)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.4032	Other (At-Grade) Single-lane w/ Traversable Central Island	2015	Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Marion, IA Linn Co. United States	7th Ave. / (future road) / (future road) (42.03286, -91.58364)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 44.3550	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	Elliptical shape. ICD estimated from Google Maps linework.
Marion, IA Linn Co. United States	6th Ave. / 15th St. (42.03243, -91.59397)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2018-2019).
Coralville, IA Johnson Co. United States	12th Ave. / Forevergreen Rd. (41.72284, -91.59520)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.9823	Other (At-Grade) Single-Lane	2005	http://www.coralville.org/mod/press/documents/12th%20Ave%2011-18-05.pdf. Opened November 16, 2005. ICD estimated from Google Maps linework.
Iowa City, IA Johnson Co. United States	Kennedy Pkwy. / Meadowlark Dr. (41.66899, -91.59541)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5492	Other (At-Grade) Single-Lane	2006	In new residential development. Functional Class: Local ICD estimated from Google Maps linework.
North Liberty, IA Johnson Co. United States	N Front St. / N Bend Dr. (41.75695, -91.59798)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2199	Other (At-Grade) Single-Lane	2019	Completed September 2019. The adjacent dead-end road to the west has been extended up to connect with Front Street at a 90-degree angle across from the existing commercial entrance drive on the east side of Front Street. In the NW quadrant of the roundabout, the farm field site has been redeveloped as a new elementary school. ICD estimated from Google Maps linework.
North Liberty, IA Johnson Co. United States	N Front St. / Penn St. (41.75206, -91.59801)	Roundabout Existing	All-Way Yield None	4 Approaches 2 Driveways 32.0763	Other (At-Grade) Single-Lane	2019	Completed Fall 2019. ICD estimated from Google Maps linework.
Marion, IA Linn Co. United States	10th St. / 10th Ave. / Central Ave. (42.03629, -91.59934)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2021	https://www.cityofmarion.org/Home/Components/News/News/6547/
Coralville, IA Johnson Co. United States	Ridgeway Dr / University Ct (41.71577, -91.59998)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 36.5520	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	University Ct / University Pkwy (41.71383, -91.60093)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 36.5531	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Marion, IA Linn Co. United States	7th Ave. / 7th St. (42.03326, -91.60272)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.0322	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	Holiday Rd. / Corridor Way (41.69709, -91.60332)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.3202	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	Heartland Dr. / Russell Dr. (41.70007, -91.61160)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.9113	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	Oakdale Blvd. / Jones Blvd. (41.70758, -91.61387)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.4483	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	Commerce Dr. / Commercial Park (41.69560, -91.61393)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.2389	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Marion, IA Linn Co. United States	Alburnett Rd / Tower Terrace (42.05859, -91.61401)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 39.9034	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Winona, MN Winona Co. United States	CSAH 17 / CSAH 15 (44.02020, -91.61581)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.2123	Other (At-Grade) Single-Lane	2012	Right-turn bypass lanes on west and east legs. ICD estimated from Google Maps linework.
Marion, IA Linn Co. United States	County Home Rd. / Alburnett Rd. (42.09450, -91.61904)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2020	Year Completed estimated (2019-2020).
Winona, MN Winona Co. United States	STH 43 (Mankato Ave. - E Sarnia St.) / Mankato Ave. (44.03717, -91.62173)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2022	https://www.dot.state.mn.us/d6/projects/hwy43/index.html
Winona, MN Winona Co. United States	STH 43 (Mankato Ave.) / Frontenac Dr. / Parks Ave. (44.03525, -91.62177)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2022	https://www.dot.state.mn.us/d6/projects/hwy43/index.html
Winona, MN Winona Co. United States	STH 43 (Mankato Ave.) / Riverbend Rd. (44.03299, -91.62216)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2022	Entrance to Winona Health hospital. https://www.dot.state.mn.us/d6/projects/hwy43/index.html
Winona, MN Winona Co. United States	US 14-US 61 / STH 43 (44.02956, -91.62216)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2022	https://www.youtube.com/watch?v=xA9c17OwsGk
North Liberty, IA Johnson Co. United States	St. Andrews Dr. / Alexander Way (41.73776, -91.62789)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6717	Other (At-Grade) Single-Lane	2020
North Liberty, IA Johnson Co. United States	Kansas Ave. / St. Andrews Dr. (41.73785, -91.63707)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Single-Lane	2019
Laddonia, MO Audrain Co. United States	US 54 / MO 19 / CR J (39.28073, -91.64373)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Single-Lane	2022	https://www.modot.org/node/27038
Maryville, IA Fayette Co. United States	IA 3 / IA 187 (42.68763, -91.64565)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.5057	Other (At-Grade) Single-Lane	2009	Rural ICD estimated from Google Maps linework.
Tiffin, IA Johnson Co. United States	E Marengo Rd. (US 6) / Park Rd. (41.70604, -91.64711)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Other (At-Grade) Single-Lane	2019	Designed for expansion to two-lane roundabout. Year Completed estimated (2019-2020).
Marion, IA Linn Co. United States	County Home Rd. / C Ave. Extension (42.09487, -91.64848)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://cbs2iowa.com/news/local/county-home-road-reopens-in-linn-county-after-improvement-project
Laddonia, MO Audrain Co. United States	US 54 / MO 19 / Hwy BB (39.16323, -91.64907)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Single-Lane	2019	https://www.modot.org/roundabouts-us-route-54
Cedar Rapids, IA Linn Co. United States	Tower Rd. SW / Training Rd. (41.91459, -91.65437)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 33.7725	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	Year Completed estimated (2010-2011). ICD estimated from Google Maps linework.
Cedar Rapids, IA Linn Co. United States	16th Ave. SE / 5th St. SE (41.97092, -91.65498)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2017-2019).
Cedar Rapids, IA Linn Co. United States	Kirkwood Blvd. / Woodstone Ln. SW (41.89597, -91.65653)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	Year Completed estimated (2021-2022).
Cedar Rapids, IA Linn Co. United States	Kirkwood Blvd SW. / S School Access Rd. (41.89988, -91.65658)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6698	Other (At-Grade) Single-Lane	2017	http://www.cedar-rapids.org/local_government/departments_g_-_v/public_works/kirkwood_blvd_sw.php ICD estimated from Google Maps linework.
Cedar Rapids, IA Linn Co. United States	12th Ave. SE / 2nd St. SE (41.96957, -91.65931)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-lane w/ Traversable Central Island	2023
Cedar Rapids, IA Linn Co. United States	6th St. SW / Commerce Park Dr. / (parking) (41.88168, -91.67595)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Other (At-Grade) Single-Lane	2023	Year Completed estimated (2022-2023).
Cedar Rapids, IA Linn Co. United States	6th St. SW / (parking) (41.90137, -91.67614)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2022	Year Completed estimated (2021-2022).
Cedar Rapids, IA Linn Co. United States	6th St. SW / Innovation Dr. / St Martin Blvd. SW (41.89632, -91.67617)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Other (At-Grade) Single-Lane	2023	Add-lane right-turn bypass lane on west leg.
Winona, MN Winona Co. United States	Gilmore Ave. / W Service Dr. / US 14 Connector (44.04862, -91.67639)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.0359	Other (At-Grade) Single-lane w/ Traversable Central Island	2016	https://www.winonadailynews.com/news/local/govt-and-politics/glimmer-for-gilmore-gridlock-main-winona-intersection-at-gilmore-hwy/article_1fc8ebc1-b84a-5bbc-8b4b-6317a3140a01.html ICD estimated from Google Maps linework.
Cedar Rapids, IA Linn Co. United States	E Ave. NW / Ellis Blvd. NW / 6th St. NW (41.97796, -91.68196)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling approach only)	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-lane w/ Traversable Central Island	2023	At-grade rail crossing approximately 200 feet east of roundabout. https://www.thegazette.com/news/ellis-boulevard-extension-opens-to-traffic-in-northwest-cedar-rapids/
Cedar Rapids, IA Linn Co. United States	Ellis Blvd. NW / F Ave. NW (41.97904, -91.68202)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-lane w/ Traversable Central Island	2022	https://www.facebook.com/Matthew25MinistryHub/posts/the-roundabout-at-f-ave-and-ellis-blvd-near-the-cultivate-hope-corner-store-is-n/5906539946051568/
Hiawatha, IA Linn Co. United States	Tower Terrace Rd. / N Center Point Rd. (42.05872, -91.69228)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2022	https://www.facebook.com/hedcoiowa/videos/new-roundabout-at-tower-terrace-and-n-center-point-rd/550647193126949/
Rice Lake, WI Barron Co. United States	CTH MM (Orchard Beach Ln.) / Kern Ave. (45.48642, -91.72517)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9569	Other (At-Grade) Single-Lane	2005	Opened June 15, 2005. ICD estimated from Google Maps linework.
Cedar Rapids, IA Linn Co. United States	1st Ave. NW / Wiley Blvd. (41.96746, -91.72573)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-lane w/ Traversable Central Island	2022
Cedar Rapids, IA Linn Co. United States	Johnson Ave. NW / Wiley Blvd. NW (41.97123, -91.72580)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 22.1990	Other (At-Grade) Single-Lane	2018	http://www.cedar-rapids.org/local_government/departments_g_-_v/public_works/johnson_avenue_nw.php ICD estimated from Google Maps linework.
Cedar Rapids, IA Linn Co. United States	Johnson Ave. NW / Jacolyn Dr. NW (41.96894, -91.73181)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	Year Completed estimated (2019-2020).
New Iberia, LA Iberia Par. United States	Belle Place Olivier Rd. (LA 320) / Loreauville Rd. (LA 86) (30.00947, -91.74349)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2017
Rice Lake, WI Barron Co. United States	College Dr. / Technology Dr. (45.47778, -91.74466)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.8230	Other (At-Grade) Single-Lane	2005	Functional Class: Local ICD estimated from Google Maps linework.
Cedar Rapids, IA Linn Co. United States	Williams Blvd. / Dean Rd. (41.94231, -91.74776)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2020	Year Completed estimated (2019-2020). https://www.kcrg.com/2020/09/18/cedar-rapids-woman-faces-traffic-charges-after-overturning-her-van-on-williams-boulevard/
Rolla, MO Phelps Co. United States	McCutchen Dr. / St Marias St. (37.95999, -91.74801)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2018-2020).
Rolla, MO Phelps Co. United States	Forum Dr. / E 18th St. (37.95932, -91.75243)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2010-2012).
Cedar Rapids, IA Linn Co. United States	Stoney Point Rd. NW / E Ave. NW (41.97858, -91.75502)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019	https://kwwl.com/2019/08/16/stoney-point-rd-reopens-after-months-welcoming-cedar-rapids-4th-roundabout/
Rice Lake, WI Barron Co. United States	CTH O (18 1 / 2 Ave.) / US 53 NB Ramps (45.47319, -91.75753)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5006	Freeway Ramps (Grade-Separated) Single-Lane	2006	Opened June 1, 2006 ICD estimated from Google Maps linework.
Rayville, LA Richland Par. United States	US 425 (Julia St. - Louisa St.) / Grimshaw St. / Christian Dr. (32.46006, -91.75859)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2022	Julia Street on north leg is one-way into the roundabout; Louisa Street is one-way out of the roundabout. https://www.knoe.com/2022/09/15/town-rayville-celebrates-new-51-million-us-425-roundabout/
Rice Lake, WI Barron Co. United States	CTH O (18 1 / 2 Ave.) / US 53 SB Ramps (45.47325, -91.76021)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5005	Freeway Ramps (Grade-Separated) Single-Lane	2006	Opened June 1, 2006 ICD estimated from Google Maps linework.
Rice Lake, WI Barron Co. United States	STH 48 (W Knapp St.) / US 53 NB Ramps (45.50926, -91.76067)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 48.7680	Freeway Ramps (Grade-Separated) Single-Lane	2020	Yield-controlled right-turn bypass lane on east leg. https://www.apg-wi.com/rice_lake_chronotype/free/traffic-changes-around-us-53-wis-48-interchange-in-rice-lake-coming-in-october/article_4e8de952-0334-11eb-a7de-678b8ff263bc.html
Rice Lake, WI Barron Co. United States	STH 48 (21st Ave - Knapp St.) / US 53 SB Ramps (45.50932, -91.76298)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 48.7680	Freeway Ramps (Grade-Separated) Single-Lane	2020	Yield-controlled right-turn bypass lane on west leg. https://www.apg-wi.com/rice_lake_chronotype/free/traffic-changes-around-us-53-wis-48-interchange-in-rice-lake-coming-in-october/article_4e8de952-0334-11eb-a7de-678b8ff263bc.html
Rice Lake, WI Barron Co. United States	STH 48 (21st Ave.) / West Ave. / 19th St. (45.50939, -91.76507)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Single-Lane	2020	https://www.apg-wi.com/rice_lake_chronotype/free/traffic-changes-around-us-53-wis-48-interchange-in-rice-lake-coming-in-october/article_4e8de952-0334-11eb-a7de-678b8ff263bc.html
Rice Lake, WI Barron Co. United States	CTH O (18 1 / 2 Ave.) / 19th St. (45.47333, -91.76556)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.3129	Other (At-Grade) Single-Lane	2005	Opened October 25, 2005. ICD estimated from Google Maps linework.
Rolla, MO Phelps Co. United States	US 63 (N Bishop Ave.) / University Dr. (37.95373, -91.77712)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2022	Entrance to Missouri S&T campus. http://moverollatdd.com/university-drive-realignment/
Rolla, MO Phelps Co. United States	University Dr. / White Columns Dr. / Nagogami Rd. / I-44 WB Ramps (37.95683, -91.78285)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.6096	Freeway Ramps (Grade-Separated) Single-Lane	2007	ICD estimated from Google Maps linework.
Rolla, MO Phelps Co. United States	Kings Hwy / I-44 EB Ramps / Martin Spring Dr. (37.94354, -91.79109)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.6283	Freeway Ramps (Grade-Separated) Single-Lane	2012	Elliptical shape. ICD estimated from Google Maps linework.
Rolla, MO Phelps Co. United States	Kings Hwy. / Old Wire Outer Rd. / I-44 WB Ramps (37.94424, -91.79360)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.6860	Freeway Ramps (Grade-Separated) Single-Lane	2012	ICD estimated from Google Maps linework.
Trego, WI Washburn Co. United States	US 63 / US 53 NB Ramps / Service Loop (45.89745, -91.82604)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2022	https://mobile.twitter.com/WisDOTnorthwest/status/1587519853581271043?cxt=HHwWhoC8qaq5gIgsAAAA
Trego, WI Washburn Co. United States	US 63 / US 53 SB Ramps / CR E (45.89603, -91.82981)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2022	https://mobile.twitter.com/WisDOTnorthwest/status/1587519853581271043?cxt=HHwWhoC8qaq5gIgsAAAA
Henderson, LA St. Martin Par. United States	Grandpoint Hwy (LA 347) / I-10 WB Ramps (30.31615, -91.83076)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.3644	Freeway Ramps (Grade-Separated) Single-Lane	2018	ICD estimated from Google Maps linework.
Henderson, LA St. Martin Par. United States	Grandpoint Hwy (LA 347) / I-10 EB Ramps (30.31467, -91.83156)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.2720	Freeway Ramps (Grade-Separated) Single-Lane	2018	ICD estimated from Google Maps linework.
Breaux Bridge, LA St. Martin Par. United States	Grand Pointe Ave. (LA 347) / Doyle Melancon Rd. (30.28636, -91.87545)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Single-Lane	2019	Circle moved to save an old oak tree. https://www.klfy.com/local/dotd-changes-roundabout-design-for-200-year-old-tree/
New Iberia, LA Iberia Par. United States	LA 3212 (Northwest Bypass) / Grand Prairie Rd. (30.01150, -91.88149)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 53.3400	Other (At-Grade) Single-Lane	2022	North leg stubbed. Year Completed estimated (2021-2022).
Urbana, IA Benton Co. United States	SR 150 (31st Ave. - Sunset St.) / Sunset St. (55th St.) (42.22578, -91.89114)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://vintontoday.com/articles/news/article1033582.html
Fulton, MO Callaway Co. United States	Market St. / E 2nd St. (38.84446, -91.94722)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2011
Youngsville, LA Lafayette Par. United States	Chemin Metarie Pkwy. / Viaulet Rd. (30.07649, -91.95547)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.2403	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2012-2014). ICD estimated from Google Maps linework.
Pine Bluff, AR Jefferson Co. United States	US 63-US 79-SR 15 (Market St.) / Saracen Resort Dr. (34.21292, -91.96112)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 67.0560	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2020	Double left turn on north and south legs.
Fairfield, IA Jefferson Co. United States	SR 1 (S Main St.) / Libertyville Rd. / S Junction Rd. (40.98829, -91.96307)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://www.youtube.com/watch?app=desktop&v=Mabi9suTVMA
Broussard, LA Lafayette Par. United States	W Fairfield Dr.-E Fairfield Dr. / S Morgan Ave. (30.11655, -91.96517)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2007	South leg added when roundabout constructed.
Broussard, LA Lafayette Par. United States	W Fairfield Dr. / S Bernard Rd. (30.11737, -91.97755)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.1960	Other (At-Grade) Single-Lane	2017	Merging right-turn bypass lane on north leg. Add-lane right-turn bypass lane on east leg. Year Completed estimated (2017-2018).
Lafayette, LA Lafayette Par. United States	Lafayette St. / Young St. / Iberia St. (30.10199, -91.99055)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.1972	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Youngsville, LA Lafayette Par. United States	LA 89 / Chemin Metairie Pkwy. (30.08441, -91.99059)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 38.2372	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Monroe, LA Ouachita Par. United States	LA 594 / Rowland Rd. (32.54334, -91.99073)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.youtube.com/watch?v=vPb7lCyxeHg
Youngsville, LA Lafayette Par. United States	Copper Meadow Blvd. / Fountain View (30.10510, -91.99648)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 49.5946	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Youngsville, LA Lafayette Par. United States	Chemin Metairie Rd. / Detente Rd. (30.09046, -92.00503)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Single-Lane	2020	Year Completed estimated (2020-2021).
Youngsville, LA Lafayette Par. United States	Fortune Rd. / Bonin Rd. (30.12382, -92.00743)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.5852	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2010-2012). ICD estimated from Google Maps linework.
Youngsville, LA Lafayette Par. United States	LA 92 / Bonin Rd. (30.10895, -92.00773)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 36.1614	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Youngsville, LA Lafayette Par. United States	Prescott Blvd. / Broyles Ln. (30.10179, -92.00802)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 35.1307	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Youngsville, LA Lafayette Par. United States	Annaberg Dr. / Deysbrook Ln. (30.10597, -92.01452)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Youngsville, LA Lafayette Par. United States	Chemin Metairie Rd. / Savoy Rd. (30.09469, -92.01512)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://1079ishot.com/progress-road-construction-roundabout-youngsville-chemin-metairie-savoy/
Youngsville, LA Lafayette Par. United States	LA 92 / Chemin Metairie Pkwy. (30.10922, -92.01561)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 38.2276	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Youngsville, LA Lafayette Par. United States	Centre Sal Celle Blvd. / (parking) (30.10836, -92.01747)	Other Existing	Other Unknown	4 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-Lane		Mix of yield-controlled and uncontrolled entries.
Youngsville, LA Lafayette Par. United States	Centre Sal Celle Blvd. (30.10689, -92.01768)	Unknown Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Lafayette, LA Lafayette Par. United States	Girard Park Dr. / Hospital Dr. / Girard Park Cir. (30.20438, -92.02050)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.katc.com/news/lafayette-parish/new-roundabout-at-girard-park-and-hospital-drive-officially-opens
Lafayette, LA Lafayette Par. United States	Woodstone Dr. / Cherrywood Dr. / Narrow Way Dr. (30.13114, -92.02997)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Carencro, LA Lafayette Par. United States	Hector Connoly Rd. / (shopping center access) (30.32295, -92.03074)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0518	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2012-2013). ICD estimated from Google Maps linework.