Roundabouts Database

29804 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
Springdale, AR
Washington Co.
United States 		Horn Ln. / Habberton Rd. / Don Tyson Pkwy.
(36.15149, -94.07702) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.3255 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2015 ICD estimated from Google Maps linework.
(unincorporated), CO
Douglas Co.
United States 		Titan Rd. / Eagle River St.
(39.50721, -105.03658) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
51.6027 		Other (At-Grade)
Single-Lane 		2017 Roundabout has been constructed, but is not being fully utilized yet until the Sterling Ranch development is complete. ICD estimated from Google Maps linework.
Castle Rock, CO
Douglas Co.
United States 		Castle Rock Pkwy. / Promenade Pkwy. / I-25 SB Off-Ramp / I-25 NB Ramps
(39.42427, -104.87786) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.3611 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2016 ICD estimated from Google Maps linework.
Ballston Lake, NY
Saratoga Co.
United States 		Round Lake Rd. / Chango Dr.
(42.93547, -73.81398) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		3 Approaches
0 Driveways
32.3526 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
Malta, NY
Saratoga Co.
United States 		Round Lake Rd. / Raylinsky Rd.
(42.93576, -73.80841) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
34.1012 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
Springdale, AR
Washington Co.
United States 		Don Tyson Pkwy. / Dearing Rd. / S 56th St.
(36.15378, -94.19304) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
77.1476 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2015 ICD estimated from Google Maps linework.
Springdale, AR
Washington Co.
United States 		Don Tyson Pkwy. / Hylton Rd.
(36.15163, -94.08588) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.1829 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2015 ICD estimated from Google Maps linework.
Pleasant Dale, NE
Seward Co.
United States 		US 6-NE 2 / NE 103
(40.81385, -96.92977) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2012
Sheboygan, WI
Sheboygan Co.
United States 		STH 32 / Happy Ln.
(43.74707, -87.81985) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.2369 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Fruita, CO
Mesa Co.
United States 		CO-340 / I-70 EB Ramps / I-70 Frontage Rd.
(39.15470, -108.73769) 		Roundabout
Existing 		All-Way Yield
Active Pedestrian Warning (flashing yellow) 		4 Approaches
0 Driveways
40.7499 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2009 ICD estimated from Google Maps linework.
Fruita, CO
Mesa Co.
United States 		CO-340 / Raptor Rd.
(39.15351, -108.73813) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
47.2337 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 ICD estimated from Google Maps linework.
Grand Junction, CO
Mesa Co.
United States 		G Rd. / 23rd Rd.
(39.10632, -108.62669) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2011 Specifically designed for over-length, WB-110 trucks.
Grand Junction, CO
Mesa Co.
United States 		Horizon Dr. / I-70 WB Ramps
(39.11215, -108.53938) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.0415 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2015 ICD estimated from Google Maps linework.
Grand Junction, CO
Mesa Co.
United States 		Horizon Dr. / I-70 EB Ramps / Horizon 70 Ct.
(39.11140, -108.54051) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.0420 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2015 ICD estimated from Google Maps linework.
Glenwood Springs, CO
Garfield Co.
United States 		US 6 (6th St.) / Laurel St. / N River Dr.
(39.55027, -107.32708) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.7572 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Carbondale, CO
Garfield Co.
United States 		CO-133 / Main St.
(39.40113, -107.21968) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
42.4526 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 ICD estimated from Google Maps linework.
Breckenridge, CO
Summit Co.
United States 		CO-9 / Stan Miller Dr. / Fairview Blvd.
(39.52585, -106.04534) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.5341 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2015 ICD estimated from Google Maps linework.
Silt, CO
Garfield Co.
United States 		US 6 (Main St. / ) / 9th St.
(39.54703, -107.65360) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.1028 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Rifle, CO
Garfield Co.
United States 		Taughenbaugh Blvd. / I-70 EB Ramps
(39.52339, -107.77710) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.6695 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2009 ICD estimated from Google Maps linework.
Rifle, CO
Garfield Co.
United States 		Taughenbaugh Blvd. / 7th St. / Airport Rd.
(39.52260, -107.77673) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.8509 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 ICD estimated from Google Maps linework.
Anchorage, AK
Anchorage
United States 		W 100th Ave. / Minnesota Dr. SB Ramps / Bietinger Dr.
(61.13025, -149.90880) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.2922 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2017 ICD estimated from Google Maps linework.
Anchorage, AK
Anchorage
United States 		W 100th Ave. / Minnesota Dr. NB Ramps / Humphrey Dr.
(61.13026, -149.90694) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.4820 		Freeway Ramps (Grade-Separated)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Cottage Grove, MN
Washington Co.
United States 		Hadley Ave. S / 95th St. S
(44.81180, -92.96479) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.0442 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Plymouth, CA
Amador Co.
United States 		SR 49 / Main St.
(38.48184, -120.84483) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.3320 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Grosse Pointe Park, MI
Wayne Co.
United States 		Kercheval Ave. / Wayburn St.
(42.38076, -82.94229) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.4090 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Monroe, WA
Snohomish Co.
United States 		Chain Lake Rd. / N Kelsey St.
(47.86475, -121.96958) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
29.6464 		Other (At-Grade)
Single-Lane 		2014 Bing "On the Street" view shows it under construction ICD estimated from Google Maps linework.
Marysville, WA
Snohomish Co.
United States 		25th Ave. NE / 174th St. NE
(48.15374, -122.19930) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.7001 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2017 May be large enough to qualify as a compact roundabout but has a fully traversable central island. ICD estimated from Google Maps linework.
Prince George, VA
Prince George Co.
United States 		Allin Rd. / A Ave. / Bull Hill Rd. / Jefferson Park Rd.
(37.22679, -77.30860) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.3333 		Other (At-Grade)
Single-Lane 		2012 Right-turn-only lane on north leg. ICD estimated from Google Maps linework.
Hilliard, OH
Franklin Co.
United States 		Wilcox Rd. / Riggins Rd.
(40.06279, -83.14831) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2017 2x1 roundabout. ICD = 160 ft in one-lane section, 180 feet in two-lane section.
Hilliard, OH
Franklin Co.
United States 		Audubon Ave. / Marshview Dr. / Blue Heron Dr.
(40.02011, -83.19260) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2015
Hilliard, OH
Franklin Co.
United States 		Audubon Ave. / Woodland Dr.
(40.02355, -83.19657) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2016
Culpeper, VA
Culpeper Co.
United States 		US 15-US 29 Business / Colonel Jameson Blvd.
(38.48020, -77.99338) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
46.7474 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
Charlottesville, VA
Albemarle Co.
United States 		Rolkin Rd. / Verona Dr / Asheville Dr.
(38.03201, -78.44056) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.1627 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Charlottesville, VA
Albemarle Co.
United States 		Berkmar Dr. / Hilton Heights Rd.
(38.09878, -78.46745) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.7152 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Charlottesville, VA
Charlottesville Co.
United States 		Zan Rd. / Line Dr.
(38.06343, -78.48792) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.1502 		Other (At-Grade)
Single-Lane 		2017 City of Charlottesville project. ICD estimated from Google Maps linework.
Palmyra, VA
Fluvanna Co.
United States 		VA-53 (Thomas Jefferson Pkwy.) / S. Boston Rd.
(37.88422, -78.32120) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.8199 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2013-2014). ICD estimated from Google Maps linework.
Palmyra, VA
Fluvanna Co.
United States 		US 15 / VA-53
(37.85633, -78.26754) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
63.1800 		Other (At-Grade)
Single-Lane 		2017 Completed summer 2017. ICD estimated from Google Maps linework.
National City, CA
San Diego Co.
United States 		D Ave. / E 12th St. / Kimball Way
(32.67354, -117.10148) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.1121 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Del Mar, CA
San Diego Co.
United States 		Jimmy Durante Blvd. / San Dieguito Dr.
(32.97042, -117.26305) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
24.0476 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Windsor, CO
Weld Co.
United States 		New Liberty Rd. / (future road)
(40.45101, -104.91123) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
43.6242 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2005 ICD estimated from Google Maps linework.
Windsor, CO
Weld Co.
United States 		New Liberty Rd. / Marina Dr.
(40.44626, -104.90330) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
49.9896 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 ICD estimated from Google Maps linework.
Windsor, CO
Weld Co.
United States 		CR 62 / Covered Bridge Pkwy.
(40.43593, -104.93456) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
57.9120 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018
Loveland, CO
Larimer Co.
United States 		E Crossroads Blvd. / I-25 SB Ramps
(40.43596, -104.99335) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
40.9068 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2011 ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		E Crossroads Blvd. / I-25 NB Ramps
(40.43597, -104.99138) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.1797 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2011 ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		Byrd Dr. / Test Dr.
(40.43198, -104.99591) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
47.2729 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 ICD estimated from Google Maps linework.
Kansas City, MO
Jackson Co.
United States 		E 87th St. / I-435 NB Ramps / Benjamin Plaza Ct.
(38.96739, -94.51883) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
65.0017 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2011 ICD estimated from Google Maps linework.
Nelsonville, OH
Athens Co.
United States 		W Washington St. / John Lloyd Evans Dr. / Diamond Brick Rd.
(39.46440, -82.25096) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2012
Logan, OH
Hocking Co.
United States 		SR 664 / US 33 SB Ramps
(39.53801, -82.44250) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Single-Lane 		2013 Bypass lane in northwest quadrant.
Logan, OH
Hocking Co.
United States 		SR 664 / US 33 NB Ramps
(39.53922, -82.44119) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Single-Lane 		2013 Bypass lane on south leg.
Athens, OH
Athens Co.
United States 		E Stimson Ave. / N McKinley Ave.
(39.33185, -82.08920) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.4092 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Athens, OH
Athens Co.
United States 		Richland Ave. / SR 682 (S Plains Rd.)
(39.31917, -82.10550) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.8826 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 ICD estimated from Google Maps linework.
Raleigh, NC
Wake Co.
United States 		Hillsborough Street / Shepard Street / Rosemary Street
(35.79052, -78.67886) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
24.2198 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Raleigh, NC
Wake Co.
United States 		Hillsborough Street / Dixie Trail / Friendly Drive
(35.78964, -78.67565) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
100.7555 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Covington, GA
Newton Co.
United States 		Bob Williams Pkwy. / Keegan Ct. / Aaron Dr.
(33.61707, -83.86087) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
30.8321 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Platteville, WI
Grant Co.
United States 		N Water St. / E Madison St.
(42.74037, -90.46891) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.3320 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Prairie du Chien, WI
Crawford Co.
United States 		S Marquette Rd. / E Blackhawk Ave.
(43.05193, -91.14100) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		4 Approaches
0 Driveways
40.1459 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Series of three roundabouts. Nearby at-grade rail crossing. ICD estimated from Google Maps linework.
Prairie du Chien, WI
Crawford Co.
United States 		S Marquette Rd. / E Wisconsin St.
(43.05037, -91.14098) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		4 Approaches
0 Driveways
33.1649 		Other (At-Grade)
Single-Lane 		2014 Series of three roundabouts. Nearby at-grade rail crossing. ICD estimated from Google Maps linework.
Prairie du Chien, WI
Crawford Co.
United States 		S Marquette Rd. / E Iowa St.
(43.04911, -91.14094) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		4 Approaches
0 Driveways
41.8934 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Series of three roundabouts. Nearby at-grade rail crossing. ICD estimated from Google Maps linework.
Albuquerque, NM
Bernalillo Co.
United States 		Yale Blvd. NE / Camino de Salud
(35.08985, -106.62158) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021 Roundabout constructed 2008. Concentric striped circulatory roadway. Roundabout removed 2020-2021 with construction of hospital building.
Chaparral, NM
Dona Ana Co.
United States 		NM-213 / NM-404
(32.03528, -106.46325) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.5482 		Other (At-Grade)
Single-Lane 		2012 Path for oversize-overweight vehicles through central island. ICD estimated from Google Maps linework.
Snowmass Village, CO
Pitkin Co.
United States 		Brush Creek Rd. / Wood Rd. / Kearns Rd.
(39.21053, -106.94725) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
27.7620 		Other (At-Grade)
Single-Lane 		2016 Right-turn bypass lane on south leg. ICD estimated from Google Maps linework.
Raymore, MO
Cass Co.
United States 		S Dean Ave. / W Lucy Webb Rd.
(38.79819, -94.49394) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
28.8551 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Swindon, England
Wiltshire
United Kingdom 		"Magic Roundabout" [A4312 / Drove Rd. / Fleming Way / A4289 (County Rd.) / Shrivenham Rd.]
(51.56285, -1.77147) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
66.0791 		Other (At-Grade)
Ring junction (3+ mini-roundabouts in ring) 		1972 Ring junction of five mini-roundabouts. ICD estimated from Google Maps linework.
Snowmass Village, CO
Pitkin Co.
United States 		Wood Rd. / Carriage Way
(39.21000, -106.94756) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
40.7179 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2016 ICD estimated from Google Maps linework.
Covington, GA
Newton Co.
United States 		US 278-GA 12 / GA 142
(33.59255, -83.79277) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
66.6560 		Other (At-Grade)
Unknown 		2018 ICD estimated from Google Maps linework.
Agawam, MA
Hampden Co.
United States 		Rte 57 / US 5 Ramps / River Rd.
(42.08087, -72.58983) 		Rotary
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
165.7625 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		Rotary restriped 2012-2013. ICD estimated from Google Maps linework.
West Springfield, MA
Hampden Co.
United States 		Rte 147 (Memorial Ave.) / US 5 Ramps
(42.09762, -72.59717) 		Rotary
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.2202 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		One of several along US 5. ICD estimated from Google Maps linework.
West Springfield, MA
Hampden Co.
United States 		Park St. / West St. / US 5 Ramps
(42.10753, -72.61637) 		Rotary
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
84.1755 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Concord, MA
Middlesex Co.
United States 		Rte 2 (Union Tpke-Concord Tpke) / Rte 2A / Barretts Mill Rd. / Commonwealth Ave.
(42.46728, -71.39721) 		Rotary
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
100.4354 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Infamous Concord rotary. ICD estimated from Google Maps linework.
Litchfield Park, AZ
Maricopa Co.
United States 		Wigwam Creek Blvd. / Windsor Blvd.
(33.51009, -112.32786) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
15.9331 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
San Ramon, CA
Contra Costa Co.
United States 		Monarch Rd. / Main Branch Rd.
(37.76644, -121.91149) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.4357 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
San Ramon, CA
Contra Costa Co.
United States 		S Monarch Rd. / Ivy Leaf Springs Rd. / Alpine Blue Dr.
(37.76185, -121.91048) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.6048 		Other (At-Grade)
Single-Lane 		2006 Opened with 2 approaches, third one added 2014-2015. ICD estimated from Google Maps linework.
Denver, CO
Denver Co.
United States 		Sports Blvd. / Wright St.
(39.71698, -104.89131) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
18.3738 		Other (At-Grade)
Single-Lane 		1997 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Denver, CO
Denver Co.
United States 		Sports Blvd. / Great Lawn Dr.
(39.71922, -104.88740) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
15.6172 		Other (At-Grade)
Single-Lane 		1997 Year Completed estimated (1993-1999). ICD estimated from Google Maps linework.
Aurora, CO
Denver Co.
United States 		Yosemite Way. / First Ave. / Dayton St.
(39.71878, -104.87592) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
49.6079 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 ICD estimated from Google Maps linework.
Superior, CO
Boulder Co.
United States 		McCaslin Blvd. / Coalton Rd.
(39.92872, -105.16582) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.1393 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		Sky Pond Dr. / Mall Access Rd. / (parking lot)
(40.41142, -104.99168) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
1 Driveways
55.4717 		Other (At-Grade)
Single-Lane 		2005 Right-turn-only lane on southeast leg. ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		Cross Roads Blvd. / Rocky Mountain Ave.
(40.43602, -105.00153) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
34.5435 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		Clydesdale Pkwy. / Stallion Dr.
(40.43774, -104.98796) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.2697 		Other (At-Grade)
Single-Lane 		2008 Year Completed estimated (2006-2010). ICD estimated from Google Maps linework.
Lowell, MA
Middlesex Co.
United States 		Industrial Ave / American Legion Connector Hwy SB Ramps
(42.61379, -71.32136) 		Rotary
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
75.5895 		Freeway Ramps (Grade-Separated)
Unknown 		Longtime rotary near Lowell Connector. ICD estimated from Google Maps linework.
Mason City, IA
Cerro Gordo Co.
United States 		Mohawk Boulevard / Mason City HS parking lots
(43.14796, -93.16502) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2013
Cedar Falls, IA
Black Hawk Co.
United States 		W Ridgeway Ave / Chancellor Dr
(42.47011, -92.45341) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
48.4535 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2011 ICD estimated from Google Maps linework.
Ankeny, IA
Polk Co.
United States 		SW Cherry St / SW 11th
(41.71942, -93.60882) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
64.1853 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Ankeny, IA
Polk Co.
United States 		SW Campustown Ct
(41.71034, -93.61365) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
136.4130 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Marion, IA
Linn Co.
United States 		Alburnett Rd / Tower Terrace
(42.05859, -91.61401) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
39.9034 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 ICD estimated from Google Maps linework.
Coralville, IA
Johnson Co.
United States 		Heartland Dr. / Russell Dr.
(41.70007, -91.61160) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.9113 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 ICD estimated from Google Maps linework.
Coralville, IA
Johnson Co.
United States 		Ridgeway Dr / University Ct
(41.71577, -91.59998) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
36.5520 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Coralville, IA
Johnson Co.
United States 		University Ct / University Pkwy
(41.71383, -91.60093) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
36.5531 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Janesville, IA
Bremer Co.
United States 		Barrick Rd. / US 218 SB Ramps
(42.64937, -92.45388) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.3400 		Freeway Ramps (Grade-Separated)
Single-Lane 		2012
Janesville, IA
Bremer Co.
United States 		Barrick Rd. / US 218 NB Ramps
(42.64935, -92.44918) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Single-Lane 		2012
Gilbert, IA
Story Co.
United States 		Gretten St / Matthews Dr
(42.10645, -93.64027) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
84.1769 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Johnston, IA
Polk Co.
United States 		NW 106th St. / NW 62nd Ave.
(41.67292, -93.76427) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012
Johnston, IA
Polk Co.
United States 		NW 62nd Ave / Pioneer Hi-Bred Crick Bldg
(41.67292, -93.72965) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
39.2527 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 ICD estimated from Google Maps linework.
Johnston, IA
Polk Co.
United States 		NW 62nd Ave / South Dr
(41.67279, -93.72054) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
36.5765 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 ICD estimated from Google Maps linework.
Johnston, IA
Polk Co.
United States 		NW 62nd Ave / North Dr
(41.67272, -93.71476) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
37.4686 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 ICD estimated from Google Maps linework.
Johnston, IA
Polk Co.
United States 		NW 62nd Ave / Pioneer Pkwy
(41.67275, -93.71210) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
37.4686 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 ICD estimated from Google Maps linework.
Charlottesville, VA
Charlottesville Co.
United States 		109 Burnet St
(38.02424, -78.48827) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
13.1717 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2017 Neighborhood mini-roundabout placed in lieu of all-way stop when a new section was added in residential development in the City of Charlottesville. ICD estimated from Google Maps linework.
Charlottesville, VA
Albemarle Co.
United States 		775 Belvedere Blvd
(38.07317, -78.45885) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
154.1935 		Other (At-Grade)
Single-Lane 		2016 Neighborhood Traffic Circle constructed with buildout of Belvedere Development ICD estimated from Google Maps linework.
Warrenton, VA
Fauquier Co.
United States 		Vint Hill Pkwy. / Watson Ct. / Farm Station Rd.
(38.74607, -77.67465) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
41.9170 		Other (At-Grade)
Single-Lane 		2017 Fauquier County constructed a roundabout as part of the Vint Hill small area plan and new roadway alignments for Vint Hill Parkway/Watson and Weeks Roads. ICD estimated from Google Maps linework.
Iida, Nagano

Japan 		Towa-cho
(35.51955, 137.82444) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
17.4975 		Unknown
Single-Lane 		2013 First roundabout in Japan. ICD estimated from Google Maps linework.