Roundabouts Database

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
Nisswa, MN
Crow Wing Co.
United States 		CSAH 77 / Nokomis Ave.
(46.49744, -94.31374) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 North leg is exit only. RRFB on western leg only. No ped crossing on eastern leg. https://blog.widseth.com/video-new-roundabout-improves-safety-at-busy-nisswa-intersection https://widseth.com/77roundabout/
Raymore, MO
Cass Co.
United States 		MO 58 (E Walnut St.) / N Prairie Ln. / S Prairie Ln.
(38.80333, -94.42059) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 https://www.modot.org/route-58-intersection-improvements
O'Fallon, MO
St. Charles Co.
United States 		Hwy DD / Dalriada Blvd.
(38.74631, -90.75882) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Single-Lane 		2022 Right-turn-only lanes on southwest and northeast legs. Appears to be convertible to 2x1. https://www.sccmo.org/DocumentCenter/View/18378/OF_HIGHWAY-DD
Nixa, MO
Christian Co.
United States 		W Pembrook Ave. / S Norton Rd.
(37.03000, -93.30859) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2023 No splitter island south leg. https://www.nixa.com/blog/2023/06/29/nixa-set-to-open-truman-blvd-tomorrow/
Wentzville, MO
St. Charles Co.
United States 		Prospect Rd. / I-64 EB Exit Ramp
(38.79596, -90.82043) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6717 		Freeway Ramps (Grade-Separated)
Single-Lane 		2008 Interchange replaced single at-grade intersection. Year Completed estimated (2008-2009).
Wentzville, MO
St. Charles Co.
United States 		Prospect Rd. / Corporate Pkwy. / I-64 WB Exit Ramp
(38.79597, -90.81810) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2008 Interchange replaced single at-grade intersection. Year Completed estimated (2008-2009).
O'Fallon, MO
St. Charles Co.
United States 		Connecting Rd. / Alta Mira Ct. / MO 364 WB Ramps
(38.76954, -90.74393) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Single-Lane 		2014
O'Fallon, MO
St. Charles Co.
United States 		Paul Renaud Blvd. / Lake St Louis Blvd. / Curtis Ln.
(38.75382, -90.80034) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2017 Year Completed estimated (2017-2018).
O'Fallon, MO
St. Charles Co.
United States 		Technology Dr. / Waterbury Falls Dr.
(38.71843, -90.69627) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (2002-2003). Southwest leg added 2008-2009.
O'Fallon, MO
St. Charles Co.
United States 		Technology Dr. / Progress Point Pkwy. / (parking)
(38.71685, -90.69499) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (2002-2003).
Weldon Spring, MO
St. Charles Co.
United States 		Weldon Spring Rd. / Technology Dr. / Siedentop Rd.
(38.71551, -90.68906) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2004 Painted splitter island on east leg. Year Completed estimated (2003-2004).
Port Townsend, WA
Jefferson Co.
United States 		SR 20 / Kearney St.
(48.11000, -122.77066) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		2023
Weldon Spring, MO
St. Charles Co.
United States 		Technology Dr. / Meadows Pkwy. / Wolfrum Rd. / I-64 WB Exit Ramp
(38.70526, -90.67410) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9600 		Freeway Ramps (Grade-Separated)
Single-Lane 		Oval shaped. ICD = 200 ft x 180 ft. Built initially as 2x2 roundabout in 2005-2006. Concentric circulatory roadway striping. Converted to single lane using by striping out inner circulatory roadway lane and left entry lane on southwest leg 2020-2021.
Chesterfield, MO
St. Louis Co.
United States 		N Outer 40 Rd. / I-64 WB Exit Ramp
(38.67582, -90.65115) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 Year Completed estimated (2009-2010).
Owatonna, MN
Steele Co.
United States 		SE 18th St. / Bixby Rd.
(44.06634, -93.19513) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 https://www.southernminn.com/owatonna_peoples_press/news/continually-delayed-bixby-roundabout-finally-opens/article_c3d04d46-8eef-11ee-9f5e-77403423ef25.html
Elizabethtown, KY
Hardin Co.
United States 		Dolphin Dr. / Josale Dr.
(37.71112, -85.83757) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2023
Elizabethtown, KY
Hardin Co.
United States 		New Glendale Rd. / Elizabethtown Bypass
(37.67603, -85.85938) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2023
Elizabethtown, KY
Hardin Co.
United States 		Woodland Dr. / Hill St. / Layman Ln.
(37.71200, -85.87922) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.2880 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2023
Elizabethtown, KY
Hardin Co.
United States 		Public Square: US 31W (W Dixie Ave. - E Dixie Ave.) / N Main St. / S Main St.
(37.69311, -85.85806) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Building with pedestrian access in central island; parking along circulatory roadway.
Bardstown, KY
Nelson Co.
United States 		US 31E / US 62
(37.80990, -85.47191) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2023
Fort Knox, KY
Hardin Co.
United States 		Chaffee Ave. / N Knox St. / Dixie St.
(37.89491, -85.95675) 		Other
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		No splitter islands.
Elizabethtown, KY
Hardin Co.
United States 		Hickory Ln. / Langley Trace
(37.68904, -85.89330) 		Other
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Elizabethtown, KY
Hardin Co.
United States 		Blue Heron Way / Freeman Lake Park Rd.
(37.72353, -85.87678) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on three legs.
Youngsville, LA
Lafayette Par.
United States 		Chemin Metairie Rd. / Detente Rd.
(30.09046, -92.00503) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		2020 Year Completed estimated (2020-2021).
Youngsville, LA
Lafayette Par.
United States 		Chemin Metairie Rd. / Savoy Rd.
(30.09469, -92.01512) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://1079ishot.com/progress-road-construction-roundabout-youngsville-chemin-metairie-savoy/
Broussard, LA
Lafayette Par.
United States 		W Fairfield Dr. / S Bernard Rd.
(30.11737, -91.97755) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Single-Lane 		2017 Merging right-turn bypass lane on north leg. Add-lane right-turn bypass lane on east leg. Year Completed estimated (2017-2018).
Binghamton, NY
Broome Co.
United States 		US 11 (Upper Front St.) / I-81 NB Ramps
(42.12299, -75.90472) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2022 https://www.binghamtonhomepage.com/news/new-roundabout-opens-on-upper-front-st/ https://www.wbng.com/2022/06/22/one-roundabout-completed-one-more-go-town-dickinson-see-bridge-completion-new-traffic-patterns/
North Ridgeville, OH
Lorain Co.
United States 		Gatestone Rd. / Gatewood Dr. / Riverwood Dr.
(41.36401, -81.98573) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		2021 Originally circular intersection with pedestrian access to circulatory roadway. Converted to roundabout 2020-2021. One-stage pedestrian crossings.
Lorain, OH
Lorain Co.
United States 		Oak Point Estates
(41.42122, -82.24337) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Lorain, OH
Lorain Co.
United States 		Oak Point Estates
(41.42126, -82.24709) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		2 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Unknown
Avon Lake, OH
Lorain Co.
United States 		Belmar Blvd. / Brookcrest Pl.
(41.49385, -82.03960) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands on two legs.
Avon Lake, OH
Lorain Co.
United States 		Fairport Dr. / Fairport Dr.
(41.48817, -82.03971) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Avon Lake, OH
Lorain Co.
United States 		English Turn / Breakers Blvd. / Heron Bay
(41.48501, -82.00869) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Pedestrian access to central island.
Cedar Road Corridor, OH
Cuyahoga Co.
United States 		Warrensville Center Rd. / Fairmount Blvd. / University Blvd. / John Carroll Blvd. / N Park Blvd.
(41.48648, -81.53627) 		Signalized Roundabout/Circle
Existing 		Signal
Unknown 		8 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (3+ Lane) 		Hamburger shaped.
Chagrin Valley, OH
Cuyahoga Co.
United States 		Gates Mills Blvd. / Fairmount Blvd. / Lander Rd.
(41.49193, -81.46312) 		Other
Existing 		Unknown
Unknown 		6 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Chagrin Valley, OH
Cuyahoga Co.
United States 		Som Center Rd. / Gates Mill Blvd. / Woodhark Dr.
(41.50843, -81.43827) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Chagrin Valley, OH
Cuyahoga Co.
United States 		Norvale Cir. E / Surrey Pl. / Carriage Pl.
(41.51117, -81.42208) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Raindrop shaped.
Benjamin Crossing, IN
Tippecanoe Co.
United States 		Chilton Dr.
(40.35858, -86.85344) 		Other
Existing 		Unknown
Unknown 		2 Approaches
3 Driveways
0.0000 		Other (At-Grade)
Unknown
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).
Pullman, WA
Whitman Co.
United States 		SR 27 / Whelan Rd.
(46.75994, -117.16896) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
32.0037 		Other (At-Grade)
Single-Lane 		2022 Opened August 2022. Developer mitigation project.
Poplar, MT
Roosevelt Co.
United States 		US 2 / 13th Ave. E
(48.11433, -105.17243) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2014-2021).
Albemarle, NC
Stanly Co.
United States 		Ridge St. / Carter Acres Rd.
(35.40272, -80.15689) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 Year Completed estimated (2019-2022).
Albemarle, NC
Stanly Co.
United States 		Ridge St. / Mountain View Church Rd.
(35.39623, -80.15732) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 Year Completed estimated (2019-2022).
Blackshear, GA
Pierce Co.
United States 		County Farm Rd. / Alabama Woods Dr.
(31.34834, -82.22002) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2017-2022).
Bowling Green, KY
Warren Co.
United States 		Parkside Ct. / Cove Dr.
(36.99073, -86.47131) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
22.8600 		Other (At-Grade)
Single-Lane 		2020 Year Completed estimated (2018-2022).
Bowling Green, KY
Warren Co.
United States 		N Sunrise Dr. / Cove Dr. / Woodway St.
(36.99346, -86.47154) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.8600 		Other (At-Grade)
Single-Lane 		2020 Year Completed estimated (2018-2022).
China, MI
St. Clair Co.
United States 		Fred W Moore Hwy. / Wadhams Rd.
(42.81537, -82.55479) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 Year Completed estimated (2019-2022).
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/
Dahlonega, GA
Lumpkin Co.
United States 		GA 9 (Dawsonville Hwy.) / GA 52
(34.52029, -84.04569) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2021
Fond du Lac, WI
Fond Du Lac Co.
United States 		Fond du Lac Ave. / Rienzi Rd. / National Ave.
(43.76212, -88.42196) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2021 Combined two T-intersections. Year Completed estimated (2020-2021).
Hoschton, GA
Barrow Co.
United States 		GA 211 / Old Hog Mountain Rd. / Covered Bridge Rd.
(34.06993, -83.78637) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021
Laurel, MS
Jones Co.
United States 		Sawmill Rd. / Sixth Ave. / Central Ave.
(31.69357, -89.13285) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2022 Central Ave is one-way exiting roundabout. http://laurelmainstreet.com/tag/roundabout/
James City, NC
Craven Co.
United States 		Terminal Dr. / Airline Dr. / (parking)
(35.07889, -77.03292) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 Only 2 approaches but 4 exits. Year Completed estimated (2019-2022).
Palm Beach Gardens, FL
Palm Beach Co.
United States 		Campus Dr. / Fairchild Ave.
(26.84129, -80.08277) 		Other
Existing 		Uncontrolled
None 		4 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		2021 Pedestrian crossings next to circulatory roadway. Year Completed estimated (2021-2022).
Palm Coast, FL
Flagler Co.
United States 		Pinnacles Dr. / Pinnacles Dr.
(29.47417, -81.19097) 		Other
Existing 		Unknown
Unknown 		2 Approaches
4 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Vancouver, WA
Clark Co.
United States 		SR 500 (NE Fourth Plain Rd.) / NE182nd Ave.
(45.67192, -122.48864) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
26.8221 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2022 Compact roundabout. WSDOT project. Completed August 20, 2022. Colored apron with asphalt interior.
Mantua, OH
Portage Co.
United States 		SR 82 / Chamberlain Rd.
(41.30863, -81.28112) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://www.record-courier.com/story/news/2022/07/30/mantua-roundabout-finally-open-odot-says-improve-safety/10173568002/
Castle Rock, CO
Douglas Co.
United States 		Plum Creek Pkwy. / S Eaton Cir. / Eaton St.
(39.36073, -104.83311) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2020 Elliptical shaped. ICD = 145 ft x 115 ft. Year Completed estimated (2020-2021).
Castle Rock, CO
Douglas Co.
United States 		S Ridge Rd. / Rapport Dr.
(39.35511, -104.81475) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2020
Castle Rock, CO
Douglas Co.
United States 		Autumn Sage St. / Valley View Dr.
(39.38026, -104.81919) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
62.4840 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2015-2017).
Castle Rock, CO
Douglas Co.
United States 		N Rocky View Rd. / Valley View Rd. / High Point Rd.
(39.38189, -104.81125) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
62.4840 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2015-2017).
Castle Pines, CO
Douglas Co.
United States 		Westbridge Dr. / Cross Canyon Trl.
(39.45951, -104.85287) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2019).
Parker, CO
Douglas Co.
United States 		Cross Canyon Trl. / Canyon Forge Dr.
(39.47008, -104.85988) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019).
Selbyville, DE
Sussex Co.
United States 		Sand Cove Rd. / Crosswinds Landing / Williamsville Rd.
(38.45556, -75.10488) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Millsboro, DE
Sussex Co.
United States 		Sterling Blvd. / Peninsula Esplanade
(38.60821, -75.16426) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Marriottsville, MD
Howard Co.
United States 		Sand Hill Rd. / Sand Hill Manor Dr. / Mount View Rd.
(39.31018, -76.93043) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-2002).
Ijamsville, MD
Frederick Co.
United States 		Whiskey Rd. / Whiskey Ct.
(39.36078, -77.30012) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Ijamsville, MD
Frederick Co.
United States 		Royal Saint Andrews Pl. / Quail Creek Pl.
(39.38039, -77.30788) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Ballenger Creek, MD
Frederick Co.
United States 		Newton Dr. / Hiteshow Dr. / Cheatham Way
(39.36597, -77.44595) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Frederick, MD
Frederick Co.
United States 		Jefferson Station Blvd. / Jefferson Commons Way
(39.39479, -77.44916) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2015 Year Completed estimated (2013-2015).
Ballenger Creek, MD
Frederick Co.
United States 		Jefferson Technology Pkwy. / (unknown)
(39.39256, -77.45666) 		Unknown
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Boonsboro, MD
Washington Co.
United States 		Monument Dr. / West Wing Way
(39.50248, -77.65503) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Boonsboro, MD
Washington Co.
United States 		Monument Dr. / Midlothian Way
(39.50117, -77.65254) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Boonsboro, MD
Washington Co.
United States 		Monument Dr. / East Wing Way
(39.50047, -77.65002) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Winona, MN
Winona Co.
United States 		US 14-US 61 / STH 43
(44.02956, -91.62216) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2022 https://www.youtube.com/watch?v=xA9c17OwsGk
Urbana, MD
Frederick Co.
United States 		Stone Barn Dr. / Longleaf Dr.
(39.33278, -77.36713) 		Unknown
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Gaithersburg, MD
Montgomery Co.
United States 		Perry Pkwy. / (parking)
(39.14899, -77.21048) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2004 Year Completed estimated (2002-2005).
Redland, MD
Montgomery Co.
United States 		Columbus Ave. / Gramercy Blvd.
(39.12362, -77.16494) 		Other
Existing 		All-Way Stop
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
King Farm, MD
Montgomery Co.
United States 		Pleasant Circle
(39.11623, -77.17518) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Pedestrian access to central island.
Potomac, MD
Montgomery Co.
United States 		10600 Morning Field Dr. / Sunny Brooke Ln. / Sunny Brooke Pl.
(39.07423, -77.21561) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Potomac, MD
Montgomery Co.
United States 		Broad Green Dr. / Clagett Farm Dr.
(39.04566, -77.19669) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Potomac, MD
Montgomery Co.
United States 		Larkmeade Ln. / Bells Ridge Dr.
(39.03483, -77.16775) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Leesburg, VA
Loudoun Co.
United States 		Beauregard Dr. SE / Fortress Cir. SE
(39.09720, -77.55053) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Paeonian Springs, VA
Loudoun Co.
United States 		Charles Town Pike / SR 7 WB Ramps
(39.14190, -77.61205) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
53.3400 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2015 Year Completed estimated (2014-2016).
Marana, AZ
Pima Co.
United States 		N Sandario Rd. / W Twin Peaks Rd.
(32.38076, -111.21671) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://www.maranaaz.gov/news/2022/5/25/traffic-alert-construction-on-a-new-roundabout-located-at-the-twin-peaks-and-sandario-road-intersection
Carpinteria, CA
Santa Barbara Co.
United States 		Ogan Rd. / Via Real / US 101 NB On-Ramp
(34.40144, -119.51551) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2020 https://www.coastalview.com/news/roadways-open-with-improvements/article_979e3586-c6f1-11ea-bc84-b3d50932177b.html
Lima, OH
Allen Co.
United States 		Market St. / Main St.
(40.73998, -84.10498) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://www.hometownstations.com/news/more-downtown-parking-being-added-now-that-roundabout-in-limas-town-square-is-open/article_b354ae8e-085a-11ed-8496-e7e7595f316f.html [Note: previous intersection looked somewhat like a roundabout. Not quite round and it had stop signs on the N-S approaches and only pedestrian stop lights on E-W approaches.]
Baton Rouge, LA
East Baton Rouge Par.
United States 		Stumberg Ln. / Womans Way
(30.38264, -91.03593) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
59.4360 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2012 Year Completed estimated (2011-2013).
Port Vincent, LA
Livingston Par.
United States 		LA 16 (Petes Hwy.) / LA 447 (Walker South Rd.)
(30.35577, -90.84991) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2022
Baton Rouge, LA
East Baton Rouge Par.
United States 		N Stadium Rd. / Field House Dr.
(30.41398, -91.18246) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2006 On campus of Louisiana State University.
Baton Rouge, LA
East Baton Rouge Par.
United States 		Capitol Access Rd. / Capitol Lake Dr.
(30.45808, -91.18278) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2016
Baton Rouge, LA
East Baton Rouge Par.
United States 		Capitol Lake Rd. / Capitol Access Rd.
(30.45818, -91.18621) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2016
Casper, WY
Natrona Co.
United States 		Rustic Dr. / Rustic Ct. / Rustic Pl.
(42.82970, -106.28379) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Casper, WY
Natrona Co.
United States 		Jasper Dr. / Preserve Cir.
(42.82867, -106.28915) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on three legs.
Cheyenne, WY
Laramie Co.
United States 		(unknown) / (parking)
(41.10110, -104.78426) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2019-2021).
Cheyenne, WY
Laramie Co.
United States 		(unknown) / (parking)
(41.10103, -104.78019) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2019-2021).
Houston, TX
Harris Co.
United States 		Point Park Dr. / (unknown)
(29.90706, -95.63522) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Cypress, TX
Harris Co.
United States 		Fairfield Green Blvd. / Fairfield Park Dr.
(30.00533, -95.75155) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Cypress, TX
Harris Co.
United States 		Fairfield Green Circle
(30.00584, -95.74990) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Building in central island.