Roundabouts Database

29867 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
Columbus, GA
Muscogee Co.
United States 		Whitesville Walk / Woodville Dr.
(32.55371, -84.97279) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.1939 		Other (At-Grade)
Single-Lane 		2007 Completed March 2007. Functional Class: Local ICD estimated from Google Maps linework.
Columbus, GA
Muscogee Co.
United States 		Warm Springs Rd. / Blackmon Rd.
(32.54701, -84.89021) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
23.1555 		Other (At-Grade)
Single-Lane 		2011 Completed February 2011. Functional Class: Arterial ICD estimated from Google Maps linework.
Columbus, GA
Muscogee Co.
United States 		St. Marys Rd. / Northstar Dr. / Lakefront Dr.
(32.44089, -84.91252) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.2782 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2015 Single-lane except for two circulating lanes in one section (although fed by single-lane entries). ICD estimated from Google Maps linework.
Columbus, GA
Muscogee Co.
United States 		Schatulga Rd. / Corporate Ridge Pkwy.
(32.50364, -84.86957) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.2536 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Columbus, GA
Muscogee Co.
United States 		S Lumpkin Rd. / Chattahoochee Riverwalk
(32.40150, -84.95556) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.4194 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Columbus, GA
Muscogee Co.
United States 		14th St. / Front Ave.
(32.47244, -84.99457) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
20.1519 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Columbus, OH
Franklin Co.
United States 		Groveport Rd. / Old Rathmell Ct. / Alum Creek Dr. access
(39.86733, -82.93329) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.9175 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 Part of intersection complex with grade separation. Right-turn bypass lane on south leg. Year Completed estimated (2012-2014). ICD estimated from Google Maps linework.
Columbus, OH
Franklin Co.
United States 		Groveport Rd. / Alum Creek Rd. access / (parking lot)
(39.86872, -82.93737) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.5833 		Other (At-Grade)
Single-Lane 		2013 Right-turn bypass lane on west leg. Year Completed estimated (2012-2014). ICD estimated from Google Maps linework.
Columbus, OH
Franklin Co.
United States 		N Hamilton Rd. / Clark State Rd.
(40.02397, -82.86595) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2016
Columbus, OH
Franklin Co.
United States 		N Hamilton Rd / Parc Dr.
(40.03180, -82.86552) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2016
Columbus, OH
Franklin Co.
United States 		US 62 (Johnstown Rd.) / Morse Rd.
(40.05465, -82.84182) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.0222 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 Skewed alignment realigned. High-speed rural approaches. Year Completed estimated (2007-2009). ICD estimated from Google Maps linework.
Columbus, OH
Franklin Co.
United States 		International Gateway / Stelzer Rd. / Red Lot parking access
(39.99937, -82.90639) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
36.5967 		Other (At-Grade)
Single-Lane 		2008 On site of John Glenn Columbus International Airport. Year Completed estimated (2007-2009). ICD estimated from Google Maps linework.
Columbus, IN
Bartholomew Co.
United States 		11th St. / Lindsey St. / Brown St.
(39.20836, -85.92443) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.4206 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 At-grade rail crossing on west leg (flashers, no gates). ICD estimated from Google Maps linework.
Columbus, IN
Bartholomew Co.
United States 		US 31 / E CR 400 S
(39.14378, -85.84092) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.1249 		Other (At-Grade)
Single-Lane 		2016 https://www.in.gov/indot/3445.htm. 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
Columbus, MN
Anoka Co.
United States 		Lake Dr. NE / (unknown)
(45.25047, -93.02965) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.8368 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019). ICD estimated from Google Maps linework.
Columbus, GA
Muscogee Co.
United States 		GA 219 (River Rd.) / Green Island Dr. / Bradley Park Dr. / Cascade Rd.
(32.52817, -84.99224) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
52.3625 		Other (At-Grade)
Single-Lane 		2019 https://www.wrbl.com/news/local-news/river-road-roundabout-opens-monday-afternoon-first-test-comes-tuesday-morning/ ICD estimated from Google Maps linework.
Columbus, GA
Muscogee Co.
United States 		Blackmon Rd. / Greystone Rd.
(32.55196, -84.89764) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2014-2016).
Columbus, GA
Muscogee Co.
United States 		Flat Rock Rd. / Midland Commons Blvd.
(32.54189, -84.87478) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2021 Lane changes required to exit. Year Completed estimated (2022-2022).
Columbus, GA
Muscogee Co.
United States 		Flat Rock Rd. / (unknown)
(32.54468, -84.87492) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2021 Lane changes required to exit. Year Completed estimated (2020-2022).
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
Columbus, MS
Lowndes Co.
United States 		Military Rd. / US 82 EB Ramps
(33.51801, -88.41368) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2020 https://cdispatch.com/news/2020-11-19/military-road-roundabout-project-to-reach-completion-by-end-of-november/
Columbus, MS
Lowndes Co.
United States 		Military Rd. / US 82 WB Ramps
(33.51915, -88.41193) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2020 https://cdispatch.com/news/2020-11-19/military-road-roundabout-project-to-reach-completion-by-end-of-november/
Columbus, OH
Delaware Co.
United States 		Lazelle Rd. / S Old State Rd. / Storrow Rd.
(40.13638, -83.00269) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021
Columbus, MS
Lowndes Co.
United States 		Main St. / 2nd St.
(33.49465, -88.43198) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 https://cdispatch.com/news/2021-01-09/photo-downtown-roundabout-opens/
Columbus, OH
Franklin Co.
United States 		Clark State Rd. / Reynoldburg-New Albany Rd.
(40.04370, -82.80916) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2020
Columbus, MI
St. Clair Co.
United States 		Gratiot Ave. / Palms Rd.
(42.85156, -82.63709) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 https://www.thetimesherald.com/story/news/2021/09/29/roundabout-palms-gratiot-open-traffic-week-columbus-twp/5913286001/
Columbus, GA
Muscogee Co.
United States 		Cusseta Rd. / Fort Benning Rd. / Brennan Rd. / Lakeside Dr.
(32.43741, -84.94018) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
57.9120 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2020 https://chattvoice.com/new-south-columbus-roundabout-to-open-next-week-p2277-1.htm
Columbine, CO
Jefferson Co.
United States 		S. Simms St. / Nelson St.
(39.64159, -105.12910) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
38.6271 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2003 Right turn bypass lanes on three legs. ICD estimated from Google Maps linework.
Columbine, CO
Jefferson Co.
United States 		S. Simms St. / W. Quincy Ave.
(39.63865, -105.12860) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.0301 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 ICD estimated from Google Maps linework.
Columbiana, OH
Columbiana Co.
United States 		SR 164 (Lisbon St. - N Main St.) / S Main St. / E Park Ave.
(40.88864, -80.69362) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Diamond shaped. Parking along circulatory roadway.
Columbia Heights, MN
Anoka Co.
United States 		39th Ave. NE / Jefferson St. NE
(45.03828, -93.25522) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.7581 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Harpers Farm Rd. / Campus Dr.
(39.21534, -76.88023) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.4614 		Other (At-Grade)
Single-Lane 		2003 Originally had 4 legs. ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Bass Ave. / S Williams St.
(38.94899, -92.31709) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
27.8651 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Business Loop 70 / I-70 WB On-Ramp
(38.96647, -92.35328) 		Roundabout
Existing 		All-Way Yield
Unknown 		2 Approaches
1 Driveways
35.2871 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2016 Replaced older roundabout that was built in 1996. ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Business Loop 70 / I-70 EB Ramps / Interstate 70 Dr. SW
(38.96640, -92.35032) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
46.4304 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2016 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Business Loop 70 / I-70 WB Ramps / Creasy Springs Rd.
(38.96655, -92.35241) 		Roundabout
Removed 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
94.7178 		Freeway Ramps (Grade-Separated)
Single-Lane 		1996 First roundabout in Missouri by Missouri DOT. Originally built in 1996 per article: https://www.voxmagazine.com/news/all-about-roundabouts-in-columbia/article_93724b2b-8b20-5228-b4de-315c5c3d2004.html. Replaced with roundabout to immediate west. ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Banneker Rd. / Cul-de-sac
(39.21141, -76.87041) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
17.5824 		Other (At-Grade)
Single-Lane 		Functional Class: Local ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Trotter Rd. / South Wind Cir.
(39.20956, -76.91891) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.1353 		Other (At-Grade)
Single-Lane 		1997 Functional Class: Collector. Year Completed estimated (1993-2001). ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Golden Straw Ln. / Davis Rd.
(39.21597, -76.81084) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-lane w/ Traversable Central Island 		2000 Completed April 28, 2000. Pedestrian ramps into circulatory roadway.
Columbia, MD
Howard Co.
United States 		Cradlerock Way / Homespun Dr.
(39.19095, -76.83787) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
22.2158 		Other (At-Grade)
Single-Lane 		2001 Completed May 21, 2001. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Golden Straw Ln. / Long Meadow Ct.
(39.21441, -76.81085) 		Traffic Calming Circle
Existing 		Other
None 		3 Approaches
0 Driveways
99.0123 		Other (At-Grade)
Single-Lane 		2000 Yield control only on west leg. ICD estimated from Google Maps linework.
Columbia, SC
Richland Co.
United States 		Lake Carolina Dr. / Centennial Dr. / Summit Ridge Dr.
(34.16836, -80.87591) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.5862 		Other (At-Grade)
Single-Lane 		2005 Very small splitter islands. ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Vandiver Dr. / Parker St.
(38.97104, -92.31310) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
61.2841 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		E Green Meadows Rd. / Carter Ln.
(38.91638, -92.33246) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
32.5242 		Other (At-Grade)
Single-Lane 		2010 Bing map has this on S Providence Rd, but that's wrong, since Providence Rd is the N-S freeway just to the west. Googlemaps says Carter Ln. ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		E Southampton Dr. / State Farm Pkwy.
(38.90095, -92.32656) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
31.6018 		Other (At-Grade)
Single-Lane 		2008 Two approaches stubbed. ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Bristol Lake Dr. / Braddington Dr.
(38.89246, -92.29611) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
22.3098 		Other (At-Grade)
Single-Lane 		2006 fourth approach is now built; see Google satellite view ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Nocona Pkwy. / Kentsfield Ln.
(38.89915, -92.28609) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
45.5450 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Ponderosa St. / Nocona Pkwy. / Kentsfield Ln.
(38.90172, -92.28732) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
44.6139 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Ponderosa St. / Philips Farm Rd.
(38.90387, -92.29025) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
40.8948 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Columbia Gorge Pkwy. / (unknown)
(38.92607, -92.25845) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
29.7324 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Hwy WW / S Rolling Hills Rd.
(38.92866, -92.25605) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2016
Columbia, MO
Boone Co.
United States 		Hwy Z / E St Charles Rd.
(38.97300, -92.20385) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
40.8550 		Other (At-Grade)
Single-Lane 		2014 Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Clark Ln. / Ballenger Pl.
(38.96325, -92.26735) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
41.7892 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Clark Ln. / E St Charles Rd. / Lakewood Dr.
(38.96322, -92.25112) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
43.6465 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		E St Charles Rd. / Lake of the Woods Rd. / Player Pl.
(38.96324, -92.24605) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
1 Driveways
26.9308 		Other (At-Grade)
Single-Lane 		2013 Oval shaped. ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Rollins Rd. / (parking lot entrance)
(38.94644, -92.38714) 		Roundabout
Existing 		All-Way Yield
Unknown 		2 Approaches
1 Driveways
23.2217 		Other (At-Grade)
Single-Lane 		2004 Entrance to parking lot for Bonnie View Nature Sanctuary. ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Rangeline Rd. / I-70 EB Ramps
(38.96822, -92.32486) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
31.5719 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2016 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Grant Ln. / Trailside Dr. / Post Oak Dr.
(38.92438, -92.39510) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
16.7249 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		1995 Year Completed estimated (1994-1995). ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		S Scott Blvd. / Vawter School Rd. / S Brushwood Lake Rd.
(38.91264, -92.40001) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
34.3846 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Hwy KK / S Scott Blvd. / (parking lot entrance)
(38.88590, -92.40107) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
58.5687 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Wisteria Ln. / Crape Myrtle Dr.
(38.89785, -92.38804) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.5196 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Cascades Dr. / Marietta Falls Ln. / Vancouver Cir.
(38.87294, -92.37750) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
25.1055 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		New Town Ave. / Center St.
(38.87357, -92.36947) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
18.5965 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Durango Dr. / Flatwater Dr.
(39.01682, -92.27705) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
28.7664 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		MO-763 / Hwy VV / E Prathersville Rd. / N Wagon Trail Rd.
(39.01622, -92.32299) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
53.8214 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		American Pkwy. / Saddlebrook Pl.
(38.99086, -92.32150) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
34.3466 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Blue Ridge Rd. / Caribou Dr. / N Garth Ave.
(38.98316, -92.33732) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
26.9233 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Mexico Gravel Rd. / Ballenger Ln.
(38.98530, -92.26479) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
39.9195 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Rangeline Rd. / I-70 WB Ramps
(38.96927, -92.32512) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
26.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2016 ICD estimated from Google Maps linework.
Columbia, SC
Richland Co.
United States 		Piney Grove Rd. / Piney Woods Rd.
(34.06870, -81.13698) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
39.5737 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Forum Blvd. / Green Meadows Rd.
(38.91311, -92.35373) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.3034 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2019 https://www.youtube.com/watch?v=HiB5NQzLK9w. Completed October 2019. ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Nocona Pkwy. / Endeavor Ave.
(38.89488, -92.28544) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.8159 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2015-2017). ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Cascades Dr. / Chelan Dr. / Chelan Cir.
(38.88024, -92.37684) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.8218 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2003-2005). ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		E St Charles Rd. / Battle Ave.
(38.96887, -92.22748) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
37.1430 		Other (At-Grade)
Single-Lane 		2019 http://gis.gocolumbiamo.com/BattleStCharlesRoundabout.jpg ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Owen Brown Rd. / Martin Rd.
(39.19989, -76.86930) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2002-2005).
Columbia, MD
Howard Co.
United States 		Oakland Mills Rd. / MD 175 SB Ramps / (unknown)
(39.21308, -76.83456) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Freeway Ramps (Grade-Separated)
Single-Lane 		2017 Year Completed estimated (2016-2017).
Columbia, MD
Howard Co.
United States 		Oakland Mills Rd. / Old Montgomery Rd.
(39.20788, -76.83157) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2017
Columbia, MO
Boone Co.
United States 		Interstate 70 Dr. SE / N Keene St.
(38.96117, -92.28877) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.facebook.com/ColumbiaMissouriPublicWorks/posts/the-roundabout-at-the-keene-street-and-i-70-drive-se-intersection-is-open-to-tra/3580714545294334/
Columbia, MD
Howard Co.
United States 		Stevens Forest Rd. / Farewell Rd. / Night Street Hill
(39.20114, -76.84781) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2019
Columbia, MO
Boone Co.
United States 		Rte K / S Sinclair Rd. / Old Plank Rd.
(38.87078, -92.38241) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 https://abc17news.com/news/2021/08/18/sinclair-and-route-k-roundabout-now-open/
Columbia, SC
Richland Co.
United States 		Lightwood Knot Rd. / Seven Springs Rd.
(34.13627, -80.88497) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Columbia, SC
Richland Co.
United States 		Town Center Pl. / Promenade Pl.
(34.12948, -80.87869) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Parking along circulatory roadway. Concentric circulatory roadway markings.
Columbia, MD
Howard Co.
United States 		Vantage Point Rd.
(39.22074, -76.85392) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Columbia, MD
Howard Co.
United States 		Charter Dr. / (parking)
(39.21273, -76.88310) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2013 Converted from cul-de-sac. Year Completed estimated (2011-2014).
Columbia, SC
Richland Co.
United States 		Old Somerby Way / Lake Carolina Dr. / Granbury Ln.
(34.18569, -80.88220) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Single-Lane 		2003
Columbia, SC
Richland Co.
United States 		Lake Carolina Dr. / Hartmill Dr.
(34.18884, -80.89329) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2003
Columbia, SC
Richland Co.
United States 		Magnolia Bluff Dr. / N Bay Crossing
(34.18293, -80.89474) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Columbia, SC
Richland Co.
United States 		Magnolia Bluff Dr. / Waterton Way / Arbor Place Dr. / Arbor Vista Ct.
(34.18264, -80.89318) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on three legs.
Columbia, SC
Richland Co.
United States 		Sailing Club Dr. / Rolling Shoals Dr. / Sunchaser Dr.
(34.17660, -80.89290) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Columbia, SC
Richland Co.
United States 		Lake Carolina Blvd. / Lake Carolina Dr.
(34.17813, -80.89618) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
68.5800 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 Concentric striping in circulatory roadway. Year Completed estimated (1994-2003). 21442.
Columbia, SC
Richland Co.
United States 		Eagle Pointe Dr. / Willow Pointe Dr.
(34.17341, -80.89656) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on east and west legs.
Columbia, SC
Richland Co.
United States 		Brooksdale Dr. / Pennywell Ct. / Parnell Ct.
(34.19338, -80.90425) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Columbia, SC
Richland Co.
United States 		Ashland Blvd. / Ashland Dr. / Mapleside Dr.
(34.19364, -80.89998) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2006-2011).
Columbia, SC
Richland Co.
United States 		Pool Circle
(34.15651, -80.93581) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Building and swimming pool in central island. Parking along circulatory roadway.
Columbia, SC
Richland Co.
United States 		Lake Village Dr. / Freshwater Dr.
(34.13498, -80.94074) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Columbia, SC
Richland Co.
United States 		Roberts Branch Pkwy.
(34.14167, -80.94965) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2016 Painted splitter islands.
Columbia, IL
Monroe Co.
United States 		Quarry Rd. / Palmer Creek Dr.
(38.46186, -90.21085) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2022 https://www.republictimes.net/another-roundabout-for-columbia/
Columbia, MO
Boone Co.
United States 		W Nifong Blvd. / Sinclair St.
(38.91006, -92.37251) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.como.gov/CMS/pressreleases/view.php?id=6689&tbiframe=1
Columbia, MO
Boone Co.
United States 		W Nifong Blvd. / S County Woods Rd. / Vawter School Rd. / S Old Mill Creek Rd.
(38.91097, -92.38182) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.como.gov/CMS/pressreleases/view.php?id=6689&tbiframe=1