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
Trois-Rivières, QC Trois-Rivieres Canada	Boulevard Laviolette / Boulevard des Récollets (46.36018, -72.56988)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 80.7749	Other (At-Grade) Multilane (2 Lane, unspecified)	2005	Converted rotary. Initial conversion estimated (2003-2007). Striping refinements 2013-2016. ICD estimated from Google Maps linework.
Town of Meyers, CA El Dorado Co. United States	US 50 / SR 89 (38.85101, -120.02231)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 35.3445	Other (At-Grade) Single-Lane	2019	Completed Sept. 2019. WB US-50 may choose physically separated bypass lane. Site is on Caltrans live video map: http://cwwp2.dot.ca.gov/vm/iframemap.htm Zoom in on Lake Tahoe (center right portion of map). Choose second camera south of the lake (Meyers). ICD estimated from Google Maps linework.
Trois-Rivières, QC Trois-Rivieres Canada	Boulevard de la Commune / Rue Royale / Boulevard Gene-H-Kruger (46.33325, -72.55133)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 89.8857	Other (At-Grade) Multilane (2 Lane, unspecified)		Park in central island. ICD estimated from Google Maps linework.
Rio Vista, CA Solano Co. United States	SR 12 / SR 113 / Birds Landing Rd. (38.18362, -121.80611)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.4901	Other (At-Grade) Single-Lane	2019	Still under construction in Sept. 2019, but operating as a roundabout. ICD estimated from Google Maps linework.
Trois-Rivières, QC Trois-Rivieres Canada	Boulevard des Athlètes / Boulevard Arthur-Rousseau / Autoroute 55 SB Ramps (46.31702, -72.58442)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.2672	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2014	https://portailconstructo.com/actualites/trois_rivieres_chantier_boulevard_arthur_rousseau_est_marche ICD estimated from Google Maps linework.
Trois-Rivières, QC Trois-Rivieres Canada	Boulevard des Athlètes / (unknown) (46.31626, -72.58552)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.1709	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2016). One leg stubbed. ICD estimated from Google Maps linework.
Trois-Rivières, QC Trois-Rivieres Canada	Rue de Vitrines / Rue des Grandes-Marchés (46.31941, -72.58703)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 47.0163	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Rochester, NY Monroe Co. United States	Rte 33 (Buffalo Rd.) / Mt Read Blvd. (43.15187, -77.65962)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.3082	Other (At-Grade) Single-Lane	2019	This was a conversion from a unique multi-lane signalized traffic circle to a roundabout. Owned by NYSDOT. ICD estimated from Google Maps linework.
Republic, MO Greene Co. United States	Republic Rd. (SR M) / RepMo Dr. / Farm Road 103 (37.13963, -93.41582)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.8915	Other (At-Grade) Single-Lane	2019	http://greenecountycommonwealth.com/content/construction-complete-republic-roundabout ICD estimated from Google Maps linework.
Burnsville, MN Dakota Co. United States	Portland Ave. / (high school access) (44.78388, -93.26816)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.3648	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Edina, MN Hennepin Co. United States	Hazelton Rd. / (parking lot) (44.87402, -93.32624)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 27.9303	Other (At-Grade) Single-Lane	2014	Under construction in Aug 2014 (streetview). ICD estimated from Google Maps linework.
Forest Lake, MN Washington Co. United States	Fenway Ave. / Headwaters Pkwy. (45.23731, -92.99853)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.3018	Other (At-Grade) Single-Lane	2017	ra-list-july2014.xlsx (file available from http://www.dot.state.mn.us/stateaid/projectdelivery.html) Year Completed estimated (2017-2018). ICD estimated from Google Maps linework.
Logan, OH Hocking Co. United States	SR 328 / US 33 SB Ramps (39.52126, -82.37668)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2017
Green, OH Summit Co. United States	Corporate Woods Pkwy. / Corporate Woods Cir. (40.96101, -81.46780)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6838	Other (At-Grade) Single-Lane	2019	ICD estimated from Google Maps linework.
Columbus, OH Franklin Co. United States	Dublin-Granville Rd. / Albany Park Dr. (40.07893, -82.84812)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2019
Grove City, OH Franklin Co. United States	Orders Rd. / Haughn Rd. (39.85994, -83.09062)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.1706	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Grove City, OH Franklin Co. United States	Gantz Rd. / Brookham Dr. (39.88597, -83.05650)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.4067	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Green, OH Summit Co. United States	E Turkeyfoot Lake Rd. / Myersville Rd. (40.97616, -81.42369)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.0679	Other (At-Grade) Single-Lane	2019	ICD estimated from Google Maps linework.
Hartville, OH Stark Co. United States	SR 619 (Edison St. NW) / Kaufman Ave. NW (40.97266, -81.36831)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.4977	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	ICD estimated from Google Maps linework.
Troy, OH Miami Co. United States	McKaig Rd. / S Dorset Rd. (40.03964, -84.22855)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 19.2019	Other (At-Grade) Single-Lane	2019	This roundabout was constructed summer 2019 and opened to traffic in August 2019. ICD estimated from Google Maps linework.
Prairie Township, OH Franklin Co. United States	S Grener Ave. / Old Grener Ave. (39.95164, -83.12259)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.2134	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2011-2012). ICD estimated from Google Maps linework.
Upper Arlington, OH Franklin Co. United States	Arlington Ave. / Stanford Rd. / Tremont Rd. (39.99510, -83.06056)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 34.7690	Other (At-Grade) Single-Lane	2004	Splitter islands only on north and south legs. ICD estimated from Google Maps linework.
Dublin, OH Franklin Co. United States	Rings Rd. / Churchman Rd. (40.07717, -83.17545)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.7272	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Fort Collins, CO Larimer Co. United States	US 287-SR 14 / US 287 Business (40.62610, -105.10657)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 59.8267	Other (At-Grade) Single-Lane	2019	https://www.coloradoan.com/story/news/2019/05/13/highway-287-construction-project-north-fort-collins-cdot/1189772001/ ICD estimated from Google Maps linework.
Upper Arlington, OH Franklin Co. United States	Redding Rd. / Tremont Rd. / Abington Rd. (40.01060, -83.06978)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.9544	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2015-2016). ICD estimated from Google Maps linework.
Upper Arlington, OH Franklin Co. United States	North Star Rd. / Kinnear Rd. / Waltham Rd. (39.99886, -83.04812)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.1074	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
East Sparta, OH Stark Co. United States	Walnut St. SE / Main Ave. SE (40.66671, -81.35319)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9892	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2012-2015). ICD estimated from Google Maps linework.
Hartville, OH Stark Co. United States	SR 619 (Edison St. NW) / King Church Ave. NW (40.97182, -81.36431)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.3826	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	ICD estimated from Google Maps linework.
Alliance, OH Stark Co. United States	Beeson St. NE / Freshley Ave. NE (40.92355, -81.15375)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.8773	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2018). ICD estimated from Google Maps linework.
(unincorporated), OH Delaware Co. United States	Lewis Center Rd. / North Rd. (40.19973, -83.01417)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6717	Other (At-Grade) Single-Lane	2019	Opened September 2019. https://engineer.co.delaware.oh.us/projects/lewiscenter-north/
New Albany, OH Franklin Co. United States	US 62 (Johnstown Rd.) / Greensward Rd. / Lambton Park Rd. (40.06668, -82.82720)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.7326	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Piqua, OH Miami Co. United States	W Garbry Rd. / Looney Rd. (40.14600, -84.21713)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2018	https://www.dailycall.com/news/48906/road-construction-set-to-be-completed-this-month
Greenville, SC Greenville Co. United States	Rocky Slope Rd. / Sedley Rd. / Legacy Park Rd. (34.82922, -82.33052)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.3523	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2007-2008). ICD estimated from Google Maps linework.
Greenville, SC Greenville Co. United States	Rocky Slope Rd. / Algonquin Trl. / Chadsworth Dr. (34.83080, -82.33141)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.3321	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2007-2008). ICD estimated from Google Maps linework.
Fairfield, OH Butler Co. United States	River Rd. / Gray Rd. (39.32691, -84.59580)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019	https://www.fairfield-city.org/839/River-and-Gray-Roundabout
Longueuil, QC Longueuil Canada	Boulevard Vauquelin / Rue du R-100 (45.52801, -73.43090)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.3451	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	Fourth leg stubbed. Concentric circulatory roadway striping. https://www.facebook.com/VilleDeLongueuil/photos/carrefours-giratoires-un-carrefour-giratoire-entrera-bientôt-en-service-à-linter/872242556120053/ ICD estimated from Google Maps linework.
Riverpark, CA Ventura Co. United States	N Oxnard Blvd. / Garonne St. / Kiawah River Dr. (34.24692, -119.17459)	Other Existing	All-Way Yield Unknown	6 Approaches 0 Driveways 135.2541	Other (At-Grade) Multilane (2 Lane, unspecified)		Functions as series of T-intersections. Pedestrian access to central island; parking along circulatory roadway. ICD estimated from Google Maps linework.
Riverpark, CA Ventura Co. United States	N Oxnard Blvd. / N Ventura Blvd. / Moss Landing Blvd. (34.24940, -119.17267)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 69.1059	Other (At-Grade) Single-Lane		Yield lines but no yield signs. Parking along circulatory roadway. ICD estimated from Google Maps linework.
Oxnard, CA Ventura Co. United States	Forest Park Blvd. / N Ventura Rd. (34.24629, -119.17948)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.3886	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Series of three roundabouts. ICD estimated from Google Maps linework.
Oxnard, CA Ventura Co. United States	Forest Park Blvd. / N Oxnard Blvd. (34.24458, -119.17711)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.4023	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Series of three roundabouts. ICD estimated from Google Maps linework.
Oxnard, CA Ventura Co. United States	Forest Park Blvd. / Moonlight Park Ave. (34.24280, -119.17467)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.4287	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Series of three roundabouts. ICD estimated from Google Maps linework.
Oxnard, CA Ventura Co. United States	Thames River Dr. / Kiawah River Dr. (34.24368, -119.16850)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 27.6442	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2006). ICD estimated from Google Maps linework.
South Bank, CA Ventura Co. United States	Wagon Wheel Rd. / Saddle Ave. / Winchester Ave. (34.23667, -119.18264)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.5077	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
South Bank, CA Ventura Co. United States	Wagon Wheel Rd. / Cactus Dr. (34.23892, -119.18429)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5319	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Bowling Green, OH Wood Co. United States	E Wooster St. / I-75 SB Ramps (41.37453, -83.61786)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.0567	Freeway Ramps (Grade-Separated) Single-Lane	2019	https://nbc24.com/news/local/wooster-street-roundabouts-to-open-in-bowling-green. ICD estimated from Google Maps linework.
Bowling Green, OH Wood Co. United States	E Wooster St. / I-75 NB Ramps (41.37445, -83.61400)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.0568	Freeway Ramps (Grade-Separated) Single-Lane	2019	https://nbc24.com/news/local/wooster-street-roundabouts-to-open-in-bowling-green. 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.
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.
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.
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.
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	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.
Port Elgin, NB Westmorland Canada	Trans Canada Hwy / Hwy 15 / Shemogue Rd. (46.05419, -64.09329)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 123.4968	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Tulsa, OK Tulsa Co. United States	S Hudson Ave. / E 36th St. (36.11156, -95.91344)	Other Existing	All-Way Yield Unknown	4 Approaches 1 Driveways 29.9108	Other (At-Grade) Single-Lane		No splitter islands. ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Valley Ridge Blvd. NW / Hwy 1 (Trans Canada Hwy) WB Offramp (51.08997, -114.24906)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.2574	Freeway Ramps (Grade-Separated) Single-Lane	2006	Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
Aberdeen, MD Harford Co. United States	Old Philadelphia Rd. (MD 7) / Perryman Rd. (MD 159) (39.48791, -76.19155)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.7911	Other (At-Grade) Single-Lane	2019	https://www.facebook.com/pg/Harford-County-Roundabouts-308793279204833/posts/ ICD estimated from Google Maps linework.
Frederick, MD Frederick Co. United States	Jefferson Pike (MD 180) / Mt Zion Rd. (39.38286, -77.48054)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.9250	Other (At-Grade) Single-Lane	2019	Opened August 2019. https://www.fredericknewspost.com/news/politics_and_government/public_safety/md-roundabout-opened/article_e67c26f7-ac5c-5931-b2e0-9e68faaa77d7.html ICD estimated from Google Maps linework.
Boise, ID Ada Co. United States	Fort St. / Robbins Rd. / N 3rd St. (43.61644, -116.19328)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.8572	Other (At-Grade) Single-Lane	2019	https://www.cityofboise.org/departments/planning-and-development-services/robbins-roundabout/ ICD estimated from Google Maps linework.
Mount Vernon, OH Knox Co. United States	Public Square (Main St. / High St.) (40.39362, -82.48543)	Other Existing	All-Way Yield None	4 Approaches 4 Driveways 88.2325	Other (At-Grade) Single-Lane	1876	The intersection at Public Square was platted in 1805 but converted to its current configuration in the mid-1890's following the construction of the Soldiers' Monument. Parking along circulatory roadway, pedestrian access to central island. https://www.historicknoxohio.org/index.php/historical-districts/mount-vernon-districts/8-downtown-district/34-public-square. ICD estimated from Google Maps linework.
Buford, GA Hall Co. United States	GA 347 (Lanier Islands Pkwy.) / Big Creek Rd. / New Bethany Rd. (34.15965, -83.99338)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.5077	Other (At-Grade) Single-Lane	2019	https://www.gainesvilletimes.com/news/more-roundabouts-coming-hall-county-why-officials-them/ ICD estimated from Google Maps linework.
Tillsonburg, ON Oxford Canada	Vienna Rd. (Hwy 19) / Talbot Rd. (Hwy 3) (42.84913, -80.72222)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.5272	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2013-2016). ICD estimated from Google Maps linework.
Athens, OH Athens Co. United States	W Union St. / Smith St. / (parking lot) (39.32941, -82.10731)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.1719	Other (At-Grade) Single-Lane	2014	Small roundabout, primarily to assist with clarifying driveway locations and where peds should cross. Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Colfax, CA Placer Co. United States	S Auburn St. / I-80 WB Ramps / (unknown) (39.09472, -120.95079)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.5154	Freeway Ramps (Grade-Separated) Single-Lane	2019	City of Colfax is lead agency; Caltrans, Placer County, and developer mitigation funds paid for it. Expected completion 2019. Current configuration is a tee intersection; after construction there will be a fourth leg. ICD estimated from Google Maps linework.
Kinkora, PE Prince Canada	Newton Rd. / Scales Pond Rd. (46.33693, -63.60768)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2018	https://www.cbc.ca/news/canada/prince-edward-island/pei-rural-roundabout-farmers-chief-engineer-kinkora-1.4656807
Alexandria, MN Douglas Co. United States	Hazel Hill Rd. SE / McKay Ave. S / 34th Ave. E (45.86060, -95.35298)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.1013	Other (At-Grade) Single-Lane	2017	https://www.voiceofalexandria.com/news/local/roundabout-should-be-finished-by-labor-day-weekend/article_f6af82d6-8c0d-11e7-a3f0-2b7a68b8879b.html ICD estimated from Google Maps linework.
Augusta, GA Richmond Co. United States	Wheeler Rd. / Aumond Rd. (33.48981, -82.05141)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.9052	Other (At-Grade) Single-Lane	2019	https://www.wjbf.com/news/out-there-somewhere/out-there-somewhere-wrong-way-a-roundabout/ ICD estimated from Google Maps linework.
Spokane, WA Spokane Co. United States	W Woodside Ave. / N F St. (47.72087, -117.45875)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2017
Spokane, WA Spokane Co. United States	W Woodside Dr. / W Dell Dr. (47.72059, -117.45289)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 78.7411	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Spokane, WA Spokane Co. United States	W Woodside Ave. / N Alberta St. (47.71971, -117.44693)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 28.1223	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Spokane, WA Spokane Co. United States	US 2 / S Deer Heights Rd. (47.64308, -117.55018)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.5075	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	Developer mitigation project - October 2019. ICD estimated from Google Maps linework.
Rotebro, Stockholm County Sollentuna Sweden	Breddanvägen / E4 NB Ramps (59.49555, 17.92361)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 39.4061	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Muskegon, MI Muskegon Co. United States	Terrace Point Rd. / (parking lot access) (43.24145, -86.25485)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.5812	Other (At-Grade) Single-Lane	1996	Year Completed unknown (before 1997). ICD estimated from Google Maps linework.
Pleasant Hill, IA Polk Co. United States	NE Rising Sun Dr. / NE 70 St. (41.59524, -93.46732)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.8341	Other (At-Grade) Single-Lane	2019	https://www.pleasanthilliowa.org/projects ICD estimated from Google Maps linework.
Altoona, IA Polk Co. United States	Adventureland Dr. / 34th Ave. SW (41.65855, -93.50315)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.2615	Other (At-Grade) Unknown	2018	ICD estimated from Google Maps linework.
Altoona, IA Polk Co. United States	NW Tallgrass Pkwy. / Prairie Fire NW (41.65368, -93.50710)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.3407	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Ames, IA Story Co. United States	University Blvd. / Airport Rd. / Oakwood Rd. (41.99735, -93.63922)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.3798	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	Free-flow right-turn bypass lane on east leg. ICD estimated from Google Maps linework.
Ames, IA Story Co. United States	University Blvd. (530th Ave.) / Cottonwood Rd. (41.99366, -93.63921)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 37.2812	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Ames, IA Story Co. United States	University Blvd. (530th Ave.) / Collaboration Pl. (41.99049, -93.63918)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 36.3954	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
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.
Grimes, IA Polk Co. United States	NE Beaverbrooke Blvd. / NE Heritage Dr. (41.70101, -93.78190)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.0699	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	Year Completed estimated (2016-2017). ICD estimated from Google Maps linework.
Grimes, IA Polk Co. United States	NE Beaverbrooke Blvd. / NE Park Dr. / NE Park St. (41.70201, -93.78755)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.0184	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	Year Completed estimated (2016-2017). ICD estimated from Google Maps linework.
Johnston, IA Polk Co. United States	NW 70th Ave. / NW 107th St. (NE Edgewood Dr.) (41.68834, -93.76342)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.2433	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Johnston, IA Polk Co. United States	NW 70th Ave. / NW 100th St. (41.68834, -93.75589)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.8109	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	Year Completed estimated (2016-2017). ICD estimated from Google Maps linework.
Johnston, IA Polk Co. United States	NW 100 St. / NW 68th Ave. (41.68333, -93.75594)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5705	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	Year Completed estimated (2016-2017). ICD estimated from Google Maps linework.
Johnston, IA Polk Co. United States	NW 100th St. / Ashton Dr. (41.67978, -93.75594)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5725	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Johnston, IA Polk Co. United States	NW 100th St. / Newport Vista Dr. (41.67795, -93.75591)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.6815	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	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).
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.
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.
Manhattan, KS Riley Co. United States	S Scenic Dr. / Skyway Dr. / K-18 WB Ramps (39.15547, -96.64423)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 74.0900	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2013	Year Completed estimated (2012-2013)/ ICD estimated from Google Maps linework.
Manhattan, KS Riley Co. United States	S Scenic Dr / K-18 EB Ramps (39.15310, -96.64301)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 57.4217	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2013	Raindrop shape. Year Completed estimated (2012-2013). ICD estimated from Google Maps linework.
Laramie, WY Albany Co. United States	N 22nd St. / Cumulus Dr. (41.33367, -105.56710)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4910	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2015-2016). ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Rossum Dr. / Mariana Hills Cir. / Mariana Ridge Ct. (40.40225, -105.14134)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2017
Loveland, CO Larimer Co. United States	Rossum Dr. / Cedar Valley Dr. / St. Andrews Dr. (40.40005, -105.14791)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 20.0096	Other (At-Grade) Single-Lane		No splitter islands. Completed before 1999. ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Cedar Valley Dr. / Deer Meadow Dr. (40.40159, -105.15175)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 27.2852	Other (At-Grade) Single-Lane	2003	Year Completed estimated (1999-2004). ICD estimated from Google Maps linework.
Loveland, CO Larimer Co. United States	Taft Farms Pl. / Rangeland Ave. (40.44756, -105.09726)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 59.0775	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Johnstown, CO Larimer Co. United States	Thompson Pkwy. / (parking lots) (40.40506, -104.98335)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.7405	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	ICD estimated from Google Maps linework.
Billings, MT Yellowstone Co. United States	Grand Ave. / 38th St. W (45.78400, -108.61111)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 44.9757	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	Fourth leg stubbed. 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.