Roundabouts Database Index

29465 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
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.
Tahoe City, CA Placer Co. United States	SR 89 / W River Rd. (39.16425, -120.14919)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.2623	Other (At-Grade) Single-Lane	2019	https://flh.fhwa.dot.gov/projects/ca/truckee/ ICD estimated from Google Maps linework.
Tahoe City, CA Placer Co. United States	SR 89 / W Lake Blvd. (39.16291, -120.14444)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.9671	Other (At-Grade) Single-Lane	2019	https://flh.fhwa.dot.gov/projects/ca/truckee/ ICD estimated from Google Maps linework.
Truckee, CA Placer Co. United States	Northstar Dr. / Ridgeline Dr. (39.28647, -120.10701)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.6735	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Plast, Chelyabinsk Plastovsky District Russia	ulitsa Lenina / (unknown) Ramps (54.39740, 60.80428)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane
Kansas City, MO Platte Co. United States	NW 56th St. / N Northwood Rd. (39.19598, -94.63168)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2019
Kansas City, MO Platte Co. United States	NW 62nd Terrace / NW Prairie View Rd. / N Chatham Ave. (39.20831, -94.64319)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Freeway Ramps (Grade-Separated) Single-Lane	2021	https://www.kcmo.gov/Home/Components/FacilityDirectory/FacilityDirectory/95/360
Kansas City, MO Platte Co. United States	Line Creek Pkwy. / Tiffany Springs Rd. (39.25957, -94.61010)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2021
Platte City, MO Platte Co. United States	MO 92 / MO 45 Spur (39.33177, -94.89577)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2022	Year Completed estimated (2021-2022).
Columbus, NE Platte Co. United States	41st Ave. / Discoverer Dr. (41.45678, -97.37745)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2015
Parkville, MO Platte Co. United States	N Nevada Ave. / Thousand Oaks Pl. (39.20318, -94.74726)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Kansas City, MO Platte Co. United States	N Nevada Ave. / NW 62nd Pl. (39.20830, -94.74611)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Kansas City, MO Platte Co. United States	N Winan Ave. (N Lisbon Ave.) / Amman Dr. (Amman St.) (39.31473, -94.69981)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	Concentric striped circulatory roadway. Year Completed estimated (2009-2010).
Kansas City, MO Platte Co. United States	N Winan Ave. (N Lisbon Ave.) / N Beijing St. (39.31653, -94.70064)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	Concentric striped circulatory roadway.
Kansas City, MO Platte Co. United States	N Winan Ave. (N Lisbon Ave.) / N Cairo Dr. (N Cairo St.) (39.31865, -94.70078)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 76.2000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2004	Concentric striped circulatory roadway.
Platte City, MO Platte Co. United States	N Apple Blossom Dr. / NW Seven Bridges Rd / (parking) (39.32728, -94.78581)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2006	Small splitter island far away from circulatory roadway on west leg.
Coves North, MO Platte Co. United States	NW Old Tiffany Springs Rd. / N Green Hills Rd. (39.26253, -94.63089)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.3863	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	Elliptical shape. https://www.linecreekloudmouth.com/blog/street-improvements/ ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	NW 72nd St. / NW Waukomis Dr. / N Green Hills Rd. (39.22505, -94.62750)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.2327	Other (At-Grade) Single-Lane	2012	Streetview car went through just after completion while two approaches were still blocked off. ICD estimated from Google Maps linework.
Riverside, MO Platte Co. United States	N Woodward Rd. / NW 52nd St. (39.18892, -94.63177)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.9531	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Parkville, MO Platte Co. United States	National Dr. / Ridge Rd. (39.21333, -94.70781)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 49.9696	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Parkville, MO Platte Co. United States	MO 45 (Tom Watson Pkwy.) / National Dr. (39.21016, -94.70027)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.1210	Other (At-Grade) Single-Lane	2000	Functional Class: Arterial ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	N Congress Ave. / MO-152 WB On-ramp / NW 96th Terr. (39.25531, -94.66793)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 55.4886	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2005	ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	N Congress Ave. / MO-152 EB Off-ramp / N Serene Ave. (39.25328, -94.66808)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 51.7908	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2005	ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	N Serene Ave. / NW Prairie View Rd. (39.25268, -94.66677)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 29.5950	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	MO-45 (Tom Watson Pkwy.) / NW Union Chapel Rd. (MO K) (39.21999, -94.73524)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 55.5165	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	NW Union Chapel Rd. / NW Brink-Meyer Rd. (39.21830, -94.73579)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.6842	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	MO-45 (Tom Watson Pkwy.) / NW Brink-Myer Rd. (39.22507, -94.75656)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 45.3352	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Riverside, MO Platte Co. United States	Horizons Pkwy. / Argosy Casino Pkwy. (39.15795, -94.64060)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 50.0090	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	ICD estimated from Google Maps linework.
Riverside, MO Platte Co. United States	Argosy Casino Pkwy. / US 69 NB Ramps / NW Tremont Trafficway (39.16237, -94.62502)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 40.7455	Freeway Ramps (Grade-Separated) Single-Lane	2016	ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	N Ambassador Dr. / NW Tiffany Springs Pkwy. (39.27269, -94.66401)	Rotary Existing	All-Way Yield None	3 Approaches 0 Driveways 101.7038	Other (At-Grade) Multilane (2 Lane, unspecified)		Converted rotary. ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	NW Skyview Ave. / NW Tiffany Springs Pkwy. (39.27313, -94.65420)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 132.2141	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	Lewis St. / (parking access) (39.20966, -94.68484)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.2845	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Kansas City, MO Platte Co. United States	NW 72nd St. / N Overland Dr. (39.22495, -94.64044)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.kcmo.gov/Home/Components/FacilityDirectory/FacilityDirectory/53/360?npage=2
Kansas City, MO Platte Co. United States	NW Waukomis Dr. / NW Englewood Rd. (39.19588, -94.60730)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2020
Platte City, MO Platte Co. United States	4th St. / Kentucky Ave. / Norma Ln. (39.35147, -94.77915)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017).
Platte City, MO Platte Co. United States	MO-N / NW 136 St. / Humphreys Rd. (39.33927, -94.77933)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2012).
Kansas City, MO Platte Co. United States	N Platte Purchase Dr. / NW 108th St. (39.28944, -94.60190)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2015-2016).
Havana, Havana Playa Cuba	Avenida 5ta / (unknown) (23.09301, -82.45429)	Other Existing	Unknown Unknown	3 Approaches 1 Driveways	Other (At-Grade) Multilane (3+ Lane)
Angle Vale, SA Playford Australia	Angle Vale Rd. / Northern Expy (M2) NB Ramps (-34.63605, 138.66883)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane
Hillier, SA Playford Australia	Angle Vale Rd. / Northern Expy (M2) SB Ramps (-34.63603, 138.67269)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane
Macdonald Park, SA Playford Australia	Curtis Rd. / Northern Expy (M2) NB Ramps (-34.66194, 138.65327)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane
Andrews Farm, SA Playford Australia	Curtis Rd. / Northern Expy (M2) SB Ramps (-34.66350, 138.65649)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane
Elizabeth South, SA Playford Australia	Commercial Rd. / Kettering Rd. / Fisher St. (-34.75212, 138.64659)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Elizabeth South, SA Playford Australia	Goodman Rd. / Ridley Rd. (-34.72539, 138.66298)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Elizabeth South, SA Playford Australia	Goodman Rd. / Blake Rd. (-34.73238, 138.65917)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Elizabeth, SA Playford Australia	Elizabeth Way / Woodford Rd. / Winterslow Rd. (-34.71448, 138.66966)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Elizabeth Grove, SA Playford Australia	Hogarth Rd. / Haydown Rd. (-34.74175, 138.66882)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Adelaide, SA Playford Australia	Hogarth Rd. / Mofflin Rd. (-34.74067, 138.66478)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Elizabeth South, SA Playford Australia	Goodman Rd. / Willison Rd. (-34.73325, 138.65862)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane		Oval shaped.
Elizabeth Park, SA Playford Australia	Yorktown Rd. / Midway Rd. (-34.70717, 138.69141)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Davoren Park, SA Playford Australia	Peachey Rd. / Davoren Rd. (-34.68115, 138.67310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Smithfield Plains, SA Playford Australia	Curtis Rd. / Coventry Rd. / Douglas Dr. (-34.67435, 138.68470)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Davoren Park, SA Playford Australia	Womma Rd. / Peachey Rd. (-34.70122, 138.66482)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Davoren Park, SA Playford Australia	Womma Rd. / Heytesbury Rd. (-34.70205, 138.66670)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Elizabeth North, SA Playford Australia	Womma Rd. / Woodford Rd. (-34.70533, 138.67419)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Penfield, SA Playford Australia	Heaslip Rd. / Womma Rd. / M2 (Northern Expressway) WB Ramps (-34.68141, 138.62189)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Penfield Gardens, SA Playford Australia	Heaslip Rd. / M2 (Northern Expressway) EB Ramps (-34.67759, 138.62434)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane
Havana, Havana Plaza de la Revolución Cuba	Rotonda Calixto García (23.14498, -82.39590)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
(unincorporated), CA Plumas Co. United States	SR 36 / CR A13 (40.30580, -121.14170)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2024	South leg disconnected from existing TWSC intersection and shifted about 250 feet east along SR 36 to make two T-intersections. Roundabout designed for OSOW vehicles along SR 36. https://www.facebook.com/story.php?story_fbid=122177854508225216&id=61556756493806&_rdr
Plymouth, England Plymouth United Kingdom	B3413 (Crownhill Rd.) / Ernesettle Ln. / A38 (The Parkway) EB Ramps (50.41211, -4.17712)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Plymouth, England Plymouth United Kingdom	Longbridge Rd. / St Modwen Rd. / Marsh Mills Park (50.39443, -4.08974)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Egg Buckland, England Plymouth United Kingdom	A374 / Delamere Rd. / Forder Valley Rd. / Longbridge Rd. / A38 (The Parkway) Ramps (50.39590, -4.09740)	Signalized Roundabout/Circle Existing	Signal None	5 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Plymouth, England Plymouth United Kingdom	Derriford Roundabout [A386 (Tavistock Rd.) / Looseleigh Ln. / Derriford Rd. / Brest Rd.] (50.41753, -4.12198)	Signalized Roundabout/Circle Existing	Signal None	5 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
King's Tamerton, England Plymouth United Kingdom	B3413 / Victoria Rd. / Roman Way / A38 (The Parkway) WB Ramps (50.41107, -4.17803)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		Bicycle lane as part of circulatory roadway.
Plymouth, England Plymouth United Kingdom	A3064 (St Budeaux Bypass) / A38 (The Parkway) EB Ramps (50.40767, -4.16304)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane
Brockton, MA Plymouth Co. United States	N Quincy St. / Boundary Ave. / Chestnut St. (42.12289, -71.00124)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2021
Duxbury, MA Plymouth Co. United States	Lincoln St. / Congress St. (42.05532, -70.72294)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 21.2829	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Hingham, MA Plymouth Co. United States	Rte. 3A (Summer St.) / Chief Justic Cushing Hwy. / Green St. (42.24615, -70.88130)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 60.1200	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.
Lakeville, MA Plymouth Co. United States	Rte. 44 / Rte. 28 / Rte. 18 (41.90274, -70.95914)	Rotary Existing	Unknown Unknown	5 Approaches 0 Driveways 106.6697	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.
Rockland, MA Plymouth Co. United States	Bill Delahunt Pkwy / Union St (42.15400, -70.92708)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.5828	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Scituate, MA Plymouth Co. United States	County Way / New Driftway / Main St. (Rte 123) / Chief Justice Cushing Hwy (Rte 3A) (42.17701, -70.75060)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 58.4157	Other (At-Grade) Single-Lane	2008	Pedestrian facilities, RTBPL ICD estimated from Google Maps linework.
North Plymouth, MA Plymouth Co. United States	Water St. / South Park Ave. (41.96132, -70.66773)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.5310	Other (At-Grade) Single-Lane	2014	rotary conversion ICD estimated from Google Maps linework.
Duxbury, MA Plymouth Co. United States	Rte 53 / Winter St. (42.02730, -70.73737)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.3743	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Pilsen, Plzeň Plzeň - město Czechia	I/27 / Folmavská (49.72998, 13.35738)	Rotary Existing	All-Way Yield None	3 Approaches 2 Driveways	Other (At-Grade) Multilane (3+ Lane)
Smederevo, Centralna Srbija Podunavlje District Serbia	SR 153 (Obilazni put) / SR 155 (Ulica Smederevska) (44.62520, 20.88098)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Johnston, IA Polk Co. United States	NW 70th Ave. / Peckham St. (41.68821, -93.74458)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	Year Completed estimated (2018-2019).
Independence, OR Polk Co. United States	C St. / (unknown) (44.85197, -123.18311)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	No splitter islands on two legs. Right-turn-only pavement marking arrows on each entry.
Apple River, WI Polk Co. United States	US 8 / STH 46 / 131st Ave. (45.39584, -92.35625)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.6105	Other (At-Grade) Single-Lane	2013	Yield-controlled right-turn bypass lane on west leg. Free-flow right-turn bypass lane on south leg. Year Completed estimated (2012-2015). 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.
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.
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
Columbus, NC Polk Co. United States	NC 108 / I-26 EB Ramps (35.24493, -82.20628)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 35.1144	Freeway Ramps (Grade-Separated) Single-Lane	2004	Part of interchange - two-lane bridge. ICD estimated from Google Maps linework.
Columbus, NC Polk Co. United States	NC 108 / I-26 WB Ramps (35.24627, -82.20499)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 34.1384	Freeway Ramps (Grade-Separated) Single-Lane	2007	Part of interchange - two-lane bridge. 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.