Roundabouts Database Index

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
Ottumwa, IA Wapello Co. United States	Wapello St. / Albia Rd. / N Ferry St. (41.00821, -92.43239)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.9516	Other (At-Grade) Unknown	2019	https://www.facebook.com/cityofottumwa/posts/10157576935583243?comment_id=10157577136173243&comment_tracking=%7B"tn"%3A"R"%7D ICD estimated from Google Maps linework.
Ottumwa, IA Wapello Co. United States	N Ferry St. / Richmond Ave. (41.00736, -92.43270)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.8280	Other (At-Grade) Unknown	2018	Opened summer 2018. https://www.google.com/maps/d/viewer?mid=12miH60MU576dGTib4lVgSXtLX2U&hl=en&gl=us&ie=UTF8&oe=UTF8&msa=0&ll=41.0083054%2C-92.43248460000001&z=17 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.
Mount Vernon, IA Linn Co. United States	US-30 E / 10th Ave S (41.91643, -91.42947)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 40.8813	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Mount Vernon, IA Linn Co. United States	US-30 SE / IA-1(1st Ave S) (41.91563, -91.42243)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 186.6343	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
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.
(unincorporated), IA Buchanan Co. United States	120th St. / Baxter Ave. (42.61280, -92.05736)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2012	Rural with high-speed approaches.
Ankeny, IA Polk Co. United States	SW Irvinedale Dr / NW Polk City Dr / SE Vintage Pkwy (41.71706, -93.63888)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 49.9237	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Mason City, IA Cerro Gordo Co. United States	Mohawk Boulevard / Mason City HS parking lots (43.14796, -93.16502)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2013
Cedar Falls, IA Black Hawk Co. United States	W Ridgeway Ave / Chancellor Dr (42.47011, -92.45341)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 48.4535	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	ICD estimated from Google Maps linework.
Ankeny, IA Polk Co. United States	SW Cherry St / SW 11th (41.71942, -93.60882)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 64.1853	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Ankeny, IA Polk Co. United States	SW Campustown Ct (41.71034, -93.61365)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 136.4130	Other (At-Grade) Single-Lane	2013	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.
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	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.
Janesville, IA Bremer Co. United States	Barrick Rd. / US 218 SB Ramps (42.64937, -92.45388)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Freeway Ramps (Grade-Separated) Single-Lane	2012
Janesville, IA Bremer Co. United States	Barrick Rd. / US 218 NB Ramps (42.64935, -92.44918)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2012
Gilbert, IA Story Co. United States	Gretten St / Matthews Dr (42.10645, -93.64027)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 84.1769	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Johnston, IA Polk Co. United States	NW 106th St. / NW 62nd Ave. (41.67292, -93.76427)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, unspecified)	2012
Johnston, IA Polk Co. United States	NW 62nd Ave / Pioneer Hi-Bred Crick Bldg (41.67292, -93.72965)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 39.2527	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Johnston, IA Polk Co. United States	NW 62nd Ave / South Dr (41.67279, -93.72054)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.5765	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Johnston, IA Polk Co. United States	NW 62nd Ave / North Dr (41.67272, -93.71476)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 37.4686	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Johnston, IA Polk Co. United States	NW 62nd Ave / Pioneer Pkwy (41.67275, -93.71210)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 37.4686	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Bettendorf, IA Scott Co. United States	53rd Ave. / Middle Rd. (41.57538, -90.46408)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.5252	Other (At-Grade) Single-Lane	2002	Right turn bypass lanes striped within roundabout. Construction cost ~$865,000. Information from website: http://www.bettendorf.lib.ia.us/publicworks/roundabout.html 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.
Oskaloosa, IA Mahaska Co. United States	Hwy 432 / Old Hwy 163 / Pella Ave. / Orchard Ave. (41.30376, -92.66716)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8882	Other (At-Grade) Single-Lane	2004	Completed April 2004. Site has sunken hole in central island with tunnels for bike path that passes under circulatory roadway. Experienced two single-vehicle crashes into sunken central island (alcohol-related). ICD estimated from Google Maps linework.
West Des Moines, IA Dallas Co. United States	Wistful Vista Dr. / S. 79th St. (41.56572, -93.81668)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.6372	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Des Moines, IA Polk Co. United States	Gannett Ave. / Rittenhouse St. (41.52031, -93.65178)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 41.1341	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Altoona, IA Polk Co. United States	10th Ave. SE / 15th St. SE (41.63733, -93.45121)	Other Removed	Unknown Unknown	4 Approaches 0 Driveways 18.2880	Other (At-Grade) Single-Lane	2024	No splitter islands. Opened December 16, 2005. Circle replaced with a 4-way stop in 2024. https://www.altoona-iowa.com/news_detail_T2_R153.php
(unincorporated), IA Blackhawk Co. United States	Independence Ave. (IA 281) / Raymond Rd. (V49) (42.49790, -92.21953)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.7456	Other (At-Grade) Single-Lane	2008	Opened Octboer 29, 2008. First roundabout in Iowa with 55mph approaches. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Cedar Falls, IA Blackhawk Co. United States	Cedar Heights Dr. / Viking Rd. (42.48899, -92.41638)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 54.8640	Other (At-Grade) Single-Lane	2007	Right-turn-only lane on west leg. Intersection relocated from T-intersection to the south. Opened November 2007.
Clive, IA Dallas Co. United States	NW 156th St. / Boston Pkwy. (41.62066, -93.83356)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.7487	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	ICD estimated from Google Maps linework.
Clive, IA Dallas Co. United States	Berkshire Pkwy. / Sheridan Ave. (41.61697, -93.84561)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.5370	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Clive, IA Dallas Co. United States	Berkshire Pkwy. / Boston Pkwy. (41.62153, -93.84657)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.3558	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
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	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.
Ottumwa, IA Wapello Co. United States	US 34 / US 63 (41.00102, -92.40453)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.3638	Other (At-Grade) Single-Lane	2006	Opened November 2006. Right turn bypass lanes on all approaches. ICD estimated from Google Maps linework.
Urbandale, IA Dallas Co. United States	142nd St. / Douglas Pkwy. (41.62940, -93.80899)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.6355	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
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.
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.
Altoona, IA Polk Co. United States	Bass Pro Dr. / Prairie Fire Blvd. (41.65177, -93.51022)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.8352	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Part of Bass Pro Shops commercial shopping center. ICD estimated from Google Maps linework.
Ankeny, IA Polk Co. United States	SW Goodwin St. / Springfield Dr. (41.69388, -93.61487)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.9709	Other (At-Grade) Single-Lane	2004	One of three in a new residential development. Functional Class: Local ICD estimated from Google Maps linework.
Ankeny, IA Polk Co. United States	SW Somersby Blvd. / Springfield Dr. (41.69387, -93.61252)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 24.0790	Other (At-Grade) Single-Lane	2004	One of three in a new residential development. Functional Class: Local ICD estimated from Google Maps linework.
Ankeny, IA Polk Co. United States	SW Somersby Blvd. / 46th St. (41.69155, -93.61253)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.0799	Other (At-Grade) Single-Lane	2004	One of three in a new residential development. Functional Class: Local ICD estimated from Google Maps linework.
Ankeny, IA Polk Co. United States	SW Snyder Blvd. / Springfield Dr. (41.69610, -93.60439)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.8618	Other (At-Grade) Single-Lane	2006	In new residential development. Functional Class: Local ICD estimated from Google Maps linework.
Ankeny, IA Polk Co. United States	NW 13th St. / Boulder Dr. (41.74220, -93.64587)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.8432	Other (At-Grade) Single-Lane	2005	In new residential development. Functional Class: Local ICD estimated from Google Maps linework.
Ankeny, IA Polk Co. United States	SW White Birch Dr. / Braeburn St. (41.70018, -93.62535)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.2872	Other (At-Grade) Single-Lane	2005	In new residential development. Functional Class: Local ICD estimated from Google Maps linework.
Ankeny, IA Polk Co. United States	NW 5th St. / Abbie Dr. (41.73569, -93.66248)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.0634	Other (At-Grade) Single-Lane	2008	In new residential development. Functional Class: Local ICD estimated from Google Maps linework.
Cedar Falls, IA Black Hawk Co. United States	Brandilynn Blvd. / Prairie Pkwy. (42.48552, -92.43468)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.2763	Other (At-Grade) Single-Lane	2009	In new commercial development. Functional Class: Local ICD estimated from Google Maps linework.
Fort Dodge, IA Webster Co. United States	10th Ave. N. / N. 32nd St. (42.51522, -94.14932)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.8545	Other (At-Grade) Single-Lane	2009	Replaced two T intersections. ICD estimated from Google Maps linework.
Iowa City, IA Johnson Co. United States	Grand Ave. / S. Grand Ave. (41.65855, -91.54559)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 23.2000	Other (At-Grade) Single-Lane	2007	On University of Iowa school campus. Functional Class: Local 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.
Waverly, IA Bremer Co. United States	1st Ave. NW / 8th St. NW (42.72669, -92.48061)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.2167	Other (At-Grade) Single-Lane	2005	Replaced "T" intersection at entry to Wartburg College school campus. ICD estimated from Google Maps linework.
West Des Moines, IA Dallas Co. United States	W. Wells Fargo Trl. / Wells Fargo Terr. (41.55986, -93.80373)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.0228	Other (At-Grade) Single-Lane	2005	In new Wells Fargo commercial development. ICD estimated from Google Maps linework.
West Des Moines, IA Dallas Co. United States	W. Wells Fargo Trl. / E. Wells Fargo Terr. (41.55994, -93.80212)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.8101	Other (At-Grade) Single-Lane	2005	In new Wells Fargo commercial development. ICD estimated from Google Maps linework.
West Des Moines, IA Dallas Co. United States	West Access / W. Wells Fargo Trl. (41.55749, -93.80611)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5986	Other (At-Grade) Single-Lane	2006	In new Wells Fargo commercial development. ICD estimated from Google Maps linework.
West Des Moines, IA Dallas Co. United States	Village View Dr. / Prairie View Dr. (Blue Stem Circle) (41.56376, -93.78467)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.5745	Other (At-Grade) Single-Lane	2007	New residential/commercial development on former Ponderosa Golf Course. ICD estimated from Google Maps linework.
West Des Moines, IA Dallas Co. United States	S. Crescent Way / Stagecoach Dr. (41.56252, -93.78701)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.9581	Other (At-Grade) Single-Lane	2007	Intersection of two private residential streets on former Ponderosa Golf Course. ICD estimated from Google Maps linework.
West Des Moines, IA Dallas Co. United States	S. Crescent Way / S. Ridgefield Way / Fairway Dr. (41.56541, -93.78633)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.9566	Other (At-Grade) Single-Lane	2007	Intersection of two private residential streets on former Ponderosa Golf Course. ICD estimated from Google Maps linework.
Waukee, IA Dallas Co. United States	Ashworth Dr. / Warrior Ln. (41.60717, -93.87220)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	Replaced five-leg intersection. West leg removed, tied into northwest leg. https://www.waukee.org/1095/Warrior-Lane-Improvements
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
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).
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/
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).
Iowa City, IA Johnson Co. United States	American Legion Rd. / S Scott Blvd. / Muscatine Ave. (41.64977, -91.48288)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://www.facebook.com/CityofIowaCity/posts/228146692693035
Twin City, IA Pottawattamie Co. United States	Chippewa Ln. (41.22800, -95.87278)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Building in central island.
Waterloo, IA Black Hawk Co. United States	University Ave. / Fletcher Ave. (42.49612, -92.36709)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.9120	Other (At-Grade) Multilane (2 Lane, unspecified)	2021
Altoona, IA Polk Co. United States	NE 62nd Ave. / 20th Ave. NW (41.67289, -93.48702)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2022	Year Completed estimated (2021-2022).
Davenport, IA Scott Co. United States	Leclaire St. / E 2nd St. (41.52114, -90.56831)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2024	Located underneath railroad bridge and connecting to lower deck of bridge over river. https://www.kwqc.com/video/2024/08/09/rock-island-arsenal-davenport-update-progress-government-bridge-traffic-circle/
Polk City, IA Polk Co. United States	Vista Lake Ct / N 3rd St / NW Sheldahl Dr (41.78316, -93.71045)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2022	https://www.polkcityia.gov/sites/g/files/vyhlif5571/f/pages/notice_to_bidders_3rd_and_vista_lake_intersection_improvements_2021-11-22.pdf
Waukee, IA Dallas Co. United States	NW 2nd St. / NW Sunrise Dr. (41.62191, -93.88215)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2022	East leg stubbed. Yield-controlled right-turn bypass lane on west leg. Year Completed estimated (2021-2022). https://www.waukee.org/194/Capital-Improvement-Projects
Waukee, IA Dallas Co. United States	NW 2nd St. / (parking) (41.62461, -93.88202)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2022	East leg stubbed. Access to school and park. Year Completed estimated (2021-2022). https://www.waukee.org/194/Capital-Improvement-Projects
Waukee, IA Dallas Co. United States	NW Sunrise Dr. / NW 6th St. / (parking) (41.62216, -93.88667)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2021	Access to school. https://www.waukee.org/194/Capital-Improvement-Projects
Camanche, IA Clinton Co. United States	US 67 / 7th Ave. (41.79727, -90.25775)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://www.youtube.com/watch?v=r8ajPBUZU6E
Waterloo, IA Black Hawk Co. United States	W 9th St. / South St. (42.48850, -92.33818)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://k923.fm/new-waterloo-roundabout-is-almost-complete-look/
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).
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
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
Iowa City, IA Johnson Co. United States	Sycamore St. SE / McCollister Blvd. (41.62554, -91.51193)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 41.1480	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2016). Initially constructed with north and south legs, plus driveway to east. West leg added 2017-2019.
Cedar Falls, IA Black Hawk Co. United States	Greenhill Rd. / Cedar Heights Dr. (42.49805, -92.41128)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2021	Year Completed estimated (2021-2022).
Cedar Falls, IA Black Hawk Co. United States	Cedar Heights Dr. / Huntington Rd. (42.49125, -92.41124)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022
Cedar Falls, IA Black Hawk Co. United States	W Ridgeway Ave. / Goldfinch Dr. (42.46945, -92.44998)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2019	Year Completed estimated (2018-2020).
Brayton, IA Cass Co. United States	710th St. / 350th St. (41.50440, -94.83505)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Cottonwood tree in center of intersection. On Audubon County-Cass County Line. https://www.roadsideamerica.com/tip/8830
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).
West Des Moines, IA Polk Co. United States	Market St. / S Prairie View Dr. / Mills Civic Pkwy. (41.56098, -93.78384)	Other Existing	Unknown Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Pedestrian access to central island.
Urbandale, IA Dallas Co. United States	Tanglewood Dr. / 159th St. (41.63969, -93.83774)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands.
Urbandale, IA Dallas Co. United States	Tanglewood Dr. / 160th St. (41.64042, -93.84043)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands.
Urbandale, IA Dallas Co. United States	160th St. / Alpine Dr. (41.64214, -93.83906)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands.
Urbandale, IA Dallas Co. United States	162nd St. / Alpine Dr. (41.64249, -93.84126)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands.
Altoona, IA Polk Co. United States	1st Ave. N / 9th St. NW / NE 54th Ave. (41.65860, -93.46447)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2022	https://littlevillagemag.com/altoona-1st-avenue-roundabout-woven-lines-sculpture/
Le Claire, IA Scott Co. United States	Wisconsin St. / 35th St. SW / (parking) (41.59770, -90.39139)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 45.7200	Other (At-Grade) Single-Lane	2022	Replaced offset T intersections. https://www.leclaireiowa.gov/340/Wisconsin-Street-and-35th-Street-Reconst
Iowa City, IA Johnson Co. United States	Herbert Hoover Hwy. NE / I-80 WB Ramps (41.67198, -91.44380)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2022	Previous intersection was entrance ramp only. https://www.news.iowadot.gov/newsandinfo/2022/06/eastbound-i-80-ramps-at-herbert-hoover-highwayjohnson-county-road-f-44-exit-249-in-johnson-county-to.html
Iowa City, IA Johnson Co. United States	Herbert Hoover Hwy. SE / I-80 EB Ramps (41.67099, -91.44629)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2022	Previous intersection was exit ramp only. https://www.news.iowadot.gov/newsandinfo/2022/06/eastbound-i-80-ramps-at-herbert-hoover-highwayjohnson-county-road-f-44-exit-249-in-johnson-county-to.html
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).
Cedar Falls, IA Black Hawk Co. United States	Greenhill Rd. / S Main St. (42.49855, -92.44586)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2022	https://www.cedarfalls.com/1572/South-MainGreenhill-Intersection-Improve
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/
Bettendorf, IA Scott Co. United States	Forest Grove Dr. / Middle Rd. (41.59010, -90.45966)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2023	https://www.ourquadcities.com/news/local-news/new-bettendorf-roundabout-opens-oct-18/ (video of partially complete roundabout here (it's the middle one) https://forestgrovedrive.com/ )
Bettendorf, IA Scott Co. United States	Forest Grove Dr. / Championship Dr. (41.59001, -90.46287)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2023	https://forestgrovedrive.com/ (first one in the video)
Bettendorf, IA Scott Co. United States	Forest Grove Dr. / Competition Dr. (41.59010, -90.45635)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2023	https://forestgrovedrive.com/ (third one in the video)