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
Phoenix, AZ Maricopa Co. United States	W Riverwood Blvd. / W Kirby Ave. (33.41608, -112.27480)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 16.9473	Other (At-Grade) Single-Lane	2002	Painted splitter islands. ICD estimated from Google Maps linework.
Cottonwood, AZ Yavapai Co. United States	AZ 89A / Avenida Centerville (34.75854, -112.05880)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.0983	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Clarkdale, AZ Yavapai Co. United States	AZ 89A / Cement Plant Rd. / Clarkdale Pkwy. (34.76220, -112.06416)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Series of 5 roundabouts. Yield-controlled right-turn bypass lane on east leg. Year Completed estimated (2007-2009).
Cottonwood, AZ Yavapai Co. United States	AZ 89A / Groseta Ranch Rd. (34.74706, -112.04510)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.1235	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Cottonwood, AZ Yavapai Co. United States	AZ 89A / Lisa St. / Lincoln Dr. (34.75449, -112.05400)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0444	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Mesa, AZ Maricopa Co. United States	Brown Rd. / Loop 202 SB Ramps (33.43689, -111.65280)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.8563	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2007	ICD estimated from Google Maps linework.
Mesa, AZ Maricopa Co. United States	Brown Rd. / Loop 202 NB Ramps (33.43694, -111.64850)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.8396	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2007	ICD estimated from Google Maps linework.
Sedona, AZ Coconino Co. United States	AZ 89A / AZ 179 (34.86597, -111.76370)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.1774	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Functional Class: Arterial ICD estimated from Google Maps linework.
Sedona, AZ Coconino Co. United States	AZ 89A / Brewer Rd. (34.86599, -111.76500)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.2376	Other (At-Grade) Multilane (2 Lane, unspecified)	2008	Functional Class: Arterial ICD estimated from Google Maps linework.
Clarkdale, AZ Yavapai Co. United States	Clarkdale Pkwy. / Mountain Gate Dr. (34.76500, -112.06276)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2003-2006).
Marana, AZ Pima Co. United States	Main St. / Civic Center Dr. (32.44841, -111.21150)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.2674	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Newport, RI Newport Co. United States	J. T. Connell Hwy. / Admiral Kalbfus Rd. (41.50703, -71.31757)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2022	Conversion from rotary to roundabout. https://www.newportthisweek.com/articles/rotary-morphing-into-a-roundabout/
Quincy, MA Norfolk Co. United States	Washington St (Rte 3A) / Dee Rd (42.24553, -70.97224)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 66.3095	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Rotary update ICD estimated from Google Maps linework.
Riverhead, NY Suffolk Co. United States	Flanders Rd. (Rte. 24) / Peconic Ave. / Lake Ave. / Riverleigh Ave. (40.91461, -72.66277)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 58.6650	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Converted from rotary to roundabout in 2018. https://riverheadlocal.com/2018/10/26/its-been-a-long-road-to-a-new-roundabout-in-riverside-but-its-officially-completed/. ICD estimated from Google Maps linework.
Riverhead, NY Suffolk Co. United States	Rte. 58 / Roanoke Ave. (40.93315, -72.67399)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.7005	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Was single-lane traffic circle. Redesigned, resigned, and restriped in 2009. ICD estimated from Google Maps linework.
Squamish, BC Squamish-Lillooet District Canada	Commercial Way / Discovery Way (49.72279, -123.15057)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Home Depot retail center on one corner. Uses fishhook signs and pavement markings. Year Completed estimated (2004-2009).
Asheville, NC Buncombe Co. United States	College St. / Valley St. / Oak St. (35.59719, -82.54733)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.1343	Other (At-Grade) Single-Lane	2005	Entrance to downtown. Downtown redevelopment - "road diet". ICD estimated from Google Maps linework.
West Jordan, UT Salt Lake Co. United States	W 8020 S / (parking lots) (40.60561, -111.93990)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.3888	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Grand Junction, CO Mesa Co. United States	Main St. / 7th St. (39.06731, -108.56104)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.8912	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Maplewood, MN Ramsey Co. United States	Legacy Pkwy / (unknown) (45.03324, -93.03310)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.0089	Other (At-Grade) Single-Lane	2004	Functional Class: Local ICD estimated from Google Maps linework.
Bridal Falls, BC Fraser Valley Regional District Canada	Hwy 9 / Yale Road East (49.18523, -121.76500)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2004	Completed October 29, 2004.
Fort Wayne, IN Allen Co. United States	Old Mill Rd. / Westover Rd. (41.04247, -85.15324)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.7261	Other (At-Grade) Single-Lane	2001	Previously controlled by two-way stop control Functional Class: Collector ICD estimated from Google Maps linework.
Fort Wayne, IN Allen Co. United States	Pontiac St. / Wayne Trace (South) / Adams St. / Pioneer St. (41.06100, -85.10003)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2003	One of two adjacent roundabouts.
Fort Wayne, IN Allen Co. United States	Pontiac St. / Wayne Trace (North) / Fenker Ave. / Pioneer St. (41.06183, -85.09948)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2003	One of two adjacent roundabouts.
Dublin, OH Union Co. United States	Hyland-Croy Rd. / Glacier Ridge Blvd (40.15634, -83.18476)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.9484	Other (At-Grade) Single-Lane	2006	A school nearby and park on the other side. Previously controlled by stop control side street Functional Class: Arterial/Residential ICD estimated from Google Maps linework.
Brighton, CO Adams Co. United States	W. Bridge St. / US 85 NB Ramps (39.98683, -104.82320)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 43.0090	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2006	Part of double-dumbbell interchange with two roundabouts and one storage lane into railroad crossing. ICD estimated from Google Maps linework.
Brighton, CO Adams Co. United States	W. Bridge St. / US 85 SB Ramps (39.98682, -104.82450)	Roundabout Existing	Unknown Unknown	5 Approaches 0 Driveways 43.9241	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2006	Part of double-dumbbell interchange with two roundabouts and one storage lane into railroad crossing. ICD estimated from Google Maps linework.
Lehi, UT Utah Co. United States	Main St. (Hwy 73) / N 500 W (Hwy 197) (40.38755, -111.85710)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling approach only)	4 Approaches 0 Driveways 30.9296	Other (At-Grade) Single-Lane	2003	Railroad approx. 400 feet from roundabout. Traffic is backed up on Main St. at all locations including the RR xing and roundabout - high growth and no other traffic options to and from freeway. ICD estimated from Google Maps linework.
Bellevue, WI Brown Co. United States	US 141 / Allouez Ave. (44.45882, -87.95038)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.4753	Other (At-Grade) Single-Lane	2007	Railroad is ~110 feet from roundabout. Seasonal summaer crossing and maybe 1 train per day for a short duration. Opened November 2, 2007. ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Kilborn Ave. / Lamira St. (45.38604, -75.67085)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5195	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Prince of Wales Dr. / National Capital Com Driveway (45.39028, -75.70744)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.2598	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	Converted old circle. ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Sussex Dr. / Rideau Gate (45.44456, -75.69254)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 24.3003	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Kemptville, ON United Counties of Leeds and Grenville Canada	CR 43 / Rideau River Rd. (45.02990, -75.63668)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2000	Year Completed estimated (before 2004). ICD estimated from Google Maps linework.
Orlando, FL Orange Co. United States	N. Westmoreland Dr. / S. Lake Adair Blvd. (28.55947, -81.39339)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 22.0291	Other (At-Grade) Single-Lane	1998	Old circle, judging by condition of brick pavement; additional yield signs w/ minimum fine; official bike route; drainage constraints; skewed Functional Class: Collector? ICD estimated from Google Maps linework.
Conway, AR Faulkner Co. United States	Washington Ave. / Tyler St. / Winfield St. (35.10256, -92.44462)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 34.1988	Other (At-Grade) Single-Lane	2005	Functional Class: Arterial ICD estimated from Google Maps linework.
Orlando, FL Orange Co. United States	N. Westmoreland Dr. / N. Lake Adair Blvd. (28.56104, -81.39342)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 17.8328	Other (At-Grade) Single-Lane	1999	Old circle, judging by condition of brick pavement; additional yield signs w/ minimum fine; official bike route; drainage constraints Functional Class: Collector? ICD estimated from Google Maps linework.
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.
Madras, OR Jefferson Co. United States	SE Grizzly Rd. / SE J St. / SE City View Rd. / (future leg) (44.62504, -121.10943)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 54.4017	Other (At-Grade) Single-Lane	2007	Sized for conversion to ultimate double-lane. Bear sculpture in central island. ICD estimated from Google Maps linework.
Madras, OR Jefferson Co. United States	SE City View St. / SE Yarrow Ave. / (future leg) (44.63084, -121.10905)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.3963	Other (At-Grade) Single-Lane	2007	Sized for conversion to ultimate double-lane. Raptor sculpture in central island. ICD estimated from Google Maps linework.
Houston, TX Harris Co. United States	Washington Ave. / Westcott St. / Arnot St. (29.77107, -95.42352)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8637	Other (At-Grade) Multilane (2 Lane, unspecified)	2005	http://www.chron.com/disp/story.mpl/metropolitan/moveit/4660312.html
Lewisville, NC Forsyth Co. United States	Concord Church Rd. / US 421 NB Ramps (36.09143, -80.42963)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.8835	Freeway Ramps (Grade-Separated) Single-Lane	2003	Mirror image of other ramp. ICD estimated from Google Maps linework.
Owatonna, MN Steele Co. United States	CSAH 7 / TH 14 EB Ramps (44.05747, -93.27671)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.3480	Freeway Ramps (Grade-Separated) Single-Lane	2012	ICD estimated from Google Maps linework.
Owatonna, MN Steele Co. United States	CSAH 7 / TH 14 WB Ramps (44.05998, -93.27671)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1964	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Brooklyn Park, MN Hennepin Co. United States	Seltzer Pkwy. / Neddersen Pkwy. / Founders Pkwy. (45.11604, -93.36655)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.4547	Other (At-Grade) Single-Lane	1995	Will be a 4th leg in future (Tessman Pkwy.). Functional Class: Collector ICD estimated from Google Maps linework.
Rochester, MN Olmstead Co. United States	Fox Valley Dr. / Fox Knoll Dr. SW (44.00954, -92.50074)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7826	Other (At-Grade) Single-Lane	2000	Previously controlled by new Functional Class: Local ICD estimated from Google Maps linework.
Minneapolis, MN Hennepin Co. United States	Minnehaha Ave. / Godfrey Pkwy. (44.91655, -93.21317)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.1384	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Brooklyn Park, MN Hennepin Co. United States	108th Ave. / Regent Ave. / Perry Dr. (45.15072, -93.34499)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0071	Other (At-Grade) Single-Lane	2005	No splitter islands. Functional Class: Local ICD estimated from Google Maps linework.
Blaine, MN Anoka Co. United States	Club West Pkwy. / 113th Ave. (45.17343, -93.23103)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.2014	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Blaine, MN Anoka Co. United States	Lakes Pkwy. / Harpers St. (45.19327, -93.19199)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.0332	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Grand Rapids, MN Itasca Co. United States	7th Ave. SE / 10th St. / 8th St. SE (47.22178, -93.51791)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.9349	Other (At-Grade) Single-Lane	2005	Replaced two offset T intersections. ICD estimated from Google Maps linework.
Grand Rapids, MN Itasca Co. United States	10th St. SW (Golf Course Rd.) / Grand Itasca Clinic and Hospital entrance (47.22104, -93.55408)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5019	Other (At-Grade) Single-Lane	2005	No accidents reported to date (2007). Rural environment. ICD estimated from Google Maps linework.
Woodbury, MN Washington Co. United States	Lake Rd. / Settlers Ridge Pkwy. (44.90197, -92.87568)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.5279	Other (At-Grade) Single-Lane	2005	Designed for future two-lane roundabout. ICD estimated from Google Maps linework.
Burnsville, MN Dakota Co. United States	Portland Ave. / E. Nicollet Blvd. (44.75141, -93.26827)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.9270	Other (At-Grade) Single-Lane	2005	Previously controlled by two-way stop ICD estimated from Google Maps linework.
Fredericksburg, VA N/A Co. United States	Hospital Dr. / Sam Perry Blvd. (38.30750, -77.48798)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.8643	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Prior Lake, MN Scott Co. United States	Fountain Hills Dr. / Jeffers (44.74596, -93.44472)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.8679	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Monticello, MN Wright Co. United States	CSAH 18 (Fenning Ave.) / Meadow Oak Ave. (45.28698, -93.77066)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.9722	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Champlin, MN Hennepin Co. United States	109th Ave. / Goose Lake Rd. / Zachary Ln. (45.15226, -93.42163)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.3217	Other (At-Grade) Single-Lane	2006	Posted speed on mainline approach 45 mph. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Maple Grove, MN Hennepin Co. United States	Norwood Ln. / 85th Pl. (45.10971, -93.43961)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.6737	Other (At-Grade) Single-Lane	2006	Intersection of local and collector street in residential development. Functional Class: Collector ICD estimated from Google Maps linework.
North Pole, AK Fairbanks North Star United States	Badger Rd. / Richardson Hwy WB Ramps (64.75903, -147.35120)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.5390	Freeway Ramps (Grade-Separated) Single-Lane	2007	Series of three roundabouts. Raindrop-shaped central island. ICD estimated from Google Maps linework.
North Pole, AK Fairbanks North Star United States	Badger Rd. / Richardson Hwy EB Ramps / Santa Claus Ln. (64.75820, -147.35170)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.5771	Freeway Ramps (Grade-Separated) Single-Lane	2007	Series of three roundabouts. Previously controlled by one-way stop ICD estimated from Google Maps linework.
North Pole, AK Fairbanks North Star United States	Santa Claus Ln. / Park Way (64.75673, -147.35280)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.6162	Other (At-Grade) Single-Lane	2007	Series of three roundabouts. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Newberg, OR Yamhill Co. United States	N Springbrook Rd. / Crestview Dr. / (future leg) (45.31532, -122.94593)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 55.4306	Other (At-Grade) Single-Lane	2007	Located near Portland and Western railroad crossing. Replaced offset T-intersections. ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	750 N St. / 2860 E St. (37.12077, -113.52450)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.5218	Other (At-Grade) Single-Lane	2001	Next to school campus. ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	Main St. / Hope St. (400 N) (37.11495, -113.58340)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 28.5717	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Washington, UT Washington Co. United States	Camino Real / Silver Falls Dr (37.10077, -113.49480)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4822	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
St. George, UT Washington Co. United States	Main St. / 200 N St. / Diagonal St. (37.11152, -113.58350)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 30.4778	Other (At-Grade) Single-Lane	1999	ICD estimated from Google Maps linework.
Washington, UT Washington Co. United States	Coral Canyon Blvd. / Canyon Greens Dr. (37.16151, -113.44740)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.7951	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Rehoboth Beach, DE Sussex Co. United States	Rehoboth Ave. / Grove St. (38.71501, -75.09075)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.6163	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Yield-controlled right-turn bypass lane on SB approach. Fishhook pavement markings. Heavy bicycle and pedestrian traffic. Extensive queuing with beach-related surges. Functional Class: Arterial ICD estimated from Google Maps linework.
Fernley, NV Lyon Co. United States	US 50A / US 95A (39.60358, -119.22700)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.6907	Other (At-Grade) Single-Lane	2006	Opened August 18, 2006. Functional Class: Arterial ICD estimated from Google Maps linework.
Kalispell, MT Flathead Co. United States	Stillwater Rd. / West Reserve Dr. (48.24038, -114.35220)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.3853	Other (At-Grade) Single-Lane	2007	First roundabout by Montana DOT. ICD estimated from Google Maps linework.
Mount Horeb, WI Dane Co. United States	Springdale St. / Perimeter St. (43.01009, -89.72186)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.5667	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Mount Horeb, WI Dane Co. United States	Springdale St. / Brookwood Dr. (43.00978, -89.71380)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8068	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Mount Horeb, WI Dane Co. United States	Springdale St. / Telmark Pkwy. (43.00933, -89.71098)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.6540	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Mount Horeb, WI Dane Co. United States	Springdale St. / Ridgeview Rd. / Lillehammer Ln. (43.00663, -89.70390)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.4418	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Mount Horeb, WI Dane Co. United States	Springdale St. / STH 78 / STH 92 (43.01007, -89.73044)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.9333	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Madison, WI Dane Co. United States	Thompson Dr. / STH 30 EB Off-Ramp (43.10506, -89.30066)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.0073	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	Opened October 22, 2004. ICD estimated from Google Maps linework.
Madison, WI Dane Co. United States	Thompson Dr. / STH 30 WB On-Ramp / Commercial Ave. (43.10643, -89.30084)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.9822	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	Opened October 22, 2004. ICD estimated from Google Maps linework.
Carmel, IN Hamilton Co. United States	Springmill Rd. / Dorset Rd. (39.97396, -86.16467)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.6272	Other (At-Grade) Single-Lane	2009	Was originally installed in 2006 as mini-roundabout. There were several property damage accidents at this intersection in the first 10 days of its operation. In that 10 days there was substantial public outcry against the mini. The decision was made and the intersection was returned to a 4-way stop before the mini had been in operation for two weeks. Conversion to single-lane roundabout estimated (2008-2010). Functional Class: Arterial ICD estimated from Google Maps linework.
Spring Grove, PA York Co. United States	Rte. 116 (Hanover St.) / Roths Church Rd. / W. Hanover St. (39.88301, -76.86363)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.6567	Other (At-Grade) Single-Lane	2007	http://www.yorkdispatch.com/local/ci_6708523 ICD estimated from Google Maps linework.
West Bloomfield Township, MI Oakland Co. United States	W. Maple Rd. / Drake Rd. (42.54184, -83.39996)	Roundabout Existing	All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)	4 Approaches 0 Driveways 62.4773	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Subject of ADA lawsuit. ICD estimated from Google Maps linework.
West Bloomfield Township, MI Oakland Co. United States	W. Maple Rd. / Farmington Rd. (42.54241, -83.38035)	Roundabout Existing	All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)	4 Approaches 0 Driveways 62.4767	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Bill Leathem Dr. / Longfields Dr. (45.29652, -75.71490)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.4456	Other (At-Grade) Single-Lane	2010	Functional Class: Major Collector ICD estimated from Google Maps linework.
Plainfield, IN Hendricks Co. United States	Morris St. / Raceway Rd. (39.74901, -86.32667)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.8940	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Charlemagne, QC Lanaudière Region Canada	Rte 138 (Rue Sherbrooke) / Rue Notre Dame (45.69860, -73.48427)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 43.3762	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Functional Class: Arterial. Year Completed estimated (2005-2008). Right-turn bypass lane on north leg. ICD estimated from Google Maps linework.
Gatineau, QC Outaouais Region Canada	Blvd. St.-Laurent / Rue Demontigny (45.43223, -75.73618)	Roundabout Existing	All-Way Yield Pedestrian Signal (red-yellow-green to drivers)	4 Approaches 0 Driveways 31.0105	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	Functional Class: Arterial ICD estimated from Google Maps linework.
Gatineau, QC Outaouais Region Canada	Blvd. St.-Laurent / Rue Labelle (45.43235, -75.74150)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.0105	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	Functional Class: Arterial ICD estimated from Google Maps linework.
Chambly, QC Regional County Municipality of La-Vallée-du-Richelieu Canada	Blvd. Frechette / Blvd. Anne-le-Seigneur (45.42759, -73.31023)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.3950	Other (At-Grade) Single-Lane	2003	High-speed approaches (65 mph [100 km/h]). Reverse curve on northbound approach. Year Completed estimated (2002-2004). ICD estimated from Google Maps linework.
Chambly, QC Regional County Municipality of La-Vallée-du-Richelieu Canada	Blvd. Frechette / Blvd. Brassard (45.43189, -73.30562)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.9352	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2002-2004). ICD estimated from Google Maps linework.
Waterloo, ON Regional Municipality of Waterloo Canada	Townline Rd. / Can-Amera Pkwy. (43.41154, -80.28042)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 60.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Year Completed estimated (2002-2004).
Grove City, OH Franklin Co. United States	Buckeye Pkwy. / Pinnacle Club Dr. (39.86381, -83.05253)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.0031	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Dublin, OH Delaware Co. United States	Glick Rd. / Avery Rd. / Manley Rd. (40.14709, -83.16482)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.9527	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Dublin, OH Franklin Co. United States	Dubln Rd. / Brand Rd. (40.11790, -83.11801)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2005
Hillard, OH Franklin Co. United States	Britton Pkwy. / Davidson Rd. (40.04977, -83.13399)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Modified striping to remove fishhooks in 2019.
(unincorporated), VA Goochland Co. United States	Centerville Parke Dr. / Centerville Parke Ln. (37.66259, -77.68004)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.8728	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Cresthaven Dr. / Waterbridge Dr. (45.28097, -75.70818)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.6990	Other (At-Grade) Single-Lane	2001	Minimal splitter islands. ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Cresthaven Dr. / Fairpark Dr. / Timberline Private (45.27486, -75.70937)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7465	Other (At-Grade) Single-Lane	2002	Minimal splitter islands. Functional Class: Local ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Ruskin St. / Melrose Ave. / Reid Ave. / Laurentian Pl. (45.39478, -75.71996)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 31.0311	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Jockvale Rd. / Exeter Dr. / Tartan Dr. (45.27044, -75.75439)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.9398	Other (At-Grade) Single-Lane	2005	Met warrants for signals. Functional Class: Major Collector ICD estimated from Google Maps linework.
Sedona, AZ Coconino Co. United States	AZ 179 / Schnebly Hill Rd. (34.86222, -111.76160)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.2593	Other (At-Grade) Single-Lane	2008	http://www.scenic179.com/ ICD estimated from Google Maps linework.
Sedona, AZ Coconino Co. United States	AZ 179 / Canyon Dr. (34.85572, -111.76410)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.4616	Other (At-Grade) Single-Lane	2008	http://www.scenic179.com/ ICD estimated from Google Maps linework.