Roundabouts Database

29465 Results

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City, State
County
Country 		Intersection
(Lat, Lng) 		Type
Status 		Control Type / Other Control Type Approaches / Driveways / ICD (m) Functional Class /
LaneType 		Year Completed Comments
Derry, NH
Rockingham Co.
United States 		Rte 28 (N Main St.-Londonderry Turnpike) / E Broadway / Chester Rd. / E Derry Rd.
(42.89225, -71.31208) 		Other
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
33.2503 		Other (At-Grade)
Single-Lane 		Pedestrian access to central island. No splitter islands. ICD estimated from Google Maps linework.
Canandaigua, NY
Ontario Co.
United States 		CR 10 / CR 46
(42.88665, -77.24563) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.5031 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Buffalo, NY
Erie Co.
United States 		Niagara Square
(42.88642, -78.87815) 		Other
Existing 		Other
Other 		7 Approaches
0 Driveways
115.5118 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Brattleboro, VT
Windham Co.
United States 		Rte 9 / Rte 5
(42.88500, -72.55670) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		1999 Adjacent to I-89. Heavy truck volume (>7%).
Peterborough, NH
Hillsborough Co.
United States 		NH 101 / Shaw's Plaza entrance
(42.87519, -71.96153) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
28.0080 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Kentwood, MI
Kent Co.
United States 		Breton Rd. SE / Walma Ave. SE
(42.87452, -85.59791) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1371 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Swanzey, NH
Cheshire Co.
United States 		Old Homestead Hwy. (NH 32) / Sawyer's Crossing Rd.
(42.87428, -72.28155) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://www.nh.gov/dot/org/projectdevelopment/highwaydesign/roundabouts/documents/roundabout-pho-swanzey40485.pdf
Londonderry, NH
Rockingham Co.
United States 		Michels Way / First Ave.
(42.87405, -71.35055) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2017-2018).
Londonderry, NH
Rockingham Co.
United States 		Michels Way / Main St.
(42.87228, -71.35008) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019).
Clifton Park, NY
Saratoga Co.
United States 		Rte 146 / Rte 146A / Vischer Ferry Rd.
(42.87020, -73.82034) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.7660 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2019 https://wnyt.com/news/last-phase-of-construction-underway-at-clifton-park-roundabout-route-146-route-146a-vischer-ferry-road/5528433/ ICD estimated from Google Maps linework.
Merrimack, NH
Hillsborough Co.
United States 		Baboosic Lake Rd. / Turkey Hill Rd.
(42.86727, -71.51565) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2021 https://www.facebook.com/merrimacktv/videos/turkey-hill-baboosic-lake-rd-roundabout-now-complete/730203548391115/
Schenectady, NY
Schenectady Co.
United States 		Rte 29 / Glenridge Rd.
(42.86709, -73.90634) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
36.7653 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Buffalo, NY
Erie Co.
United States 		Fuhrmann Blvd. / Outer Harbor Dr.
(42.86220, -78.87408) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
39.3945 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Amesbury, MA
Essex Co.
United States 		Market St (Rte 150) / Elm St / Main St (Rte 150) / High St
(42.85794, -70.93010) 		Traffic Calming Circle
Existing 		Other
None 		4 Approaches
0 Driveways
13.1324 		Other (At-Grade)
Single-Lane 		On-Street parking in the traffic circle ICD estimated from Google Maps linework.
Muskego, WI
Waukesha Co.
United States 		CTH Y (Racine Ave.) / Kelsey Dr.
(42.85757, -88.15911) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.6425 		Other (At-Grade)
Single-Lane 		2009 Opened November 9, 2009. ICD estimated from Google Maps linework.
Amesbury, MA
Essex Co.
United States 		Friend St / School St (Rte 150) / Allens Ct
(42.85615, -70.93410) 		Roundabout
Existing 		Other
None 		4 Approaches
0 Driveways
26.2656 		Other (At-Grade)
Single-Lane 		2001 North leg stop-controlled. Fire station on south leg. Resurfaced on 2017. ICD estimated from Google Maps linework.
Whitewater, WI
Jefferson Co.
United States 		Burr Oak Trl. / N Acorn Ridge
(42.85569, -88.74258) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.6434 		Other (At-Grade)
Single-Lane 		2007 Opened October 2007. Functional Class: Local ICD estimated from Google Maps linework.
(unincorporated), WI
Dane Co.
United States 		US 14 / STH 92 / Biglow Rd.
(42.85434, -89.34080) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2022 https://www.channel3000.com/u-s-highway-14-to-close-between-oregon-brooklyn-starting-next-week/
Whitewater, WI
Jefferson Co.
United States 		Burr Oak Trl. / (unknown)
(42.85222, -88.74105) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.7695 		Other (At-Grade)
Single-Lane 		2007 Opened November 2007. Functional Class: Local ICD estimated from Google Maps linework.
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/
Tillsonburg, ON
Oxford
Canada 		Vienna Rd. (Hwy 19) / Talbot Rd. (Hwy 3)
(42.84913, -80.72222) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.5272 		Other (At-Grade)
Single-Lane 		2015 Year Completed estimated (2013-2016). ICD estimated from Google Maps linework.
Schenectady, NY
Schenectady Co.
United States 		Balltown Rd. / Aqueduct Rd. / Williams St.
(42.84861, -73.88891) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
51.6619 		Other (At-Grade)
Single-Lane 		2016 Scheduled to be converted to 2 lanes in Dec. 2017. ICD estimated from Google Maps linework.
Bishkek, Bishkek

Kyrgyzstan 		(unknown)
(42.84452, 74.52832) 		Unknown
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Lackawanna, NY
Erie Co.
United States 		McKinley Pkwy. / Choate Ave. / Red Jacket Pkwy.
(42.84436, -78.81496) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
138.3584 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Nakhodka, Primorye
Nakhodka
Russia 		Nakhimovskiy prospekt / ulitsa Shevchenko / Pereval'naya ulitsa
(42.84359, 132.91834) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Bishkek, Bishkek
Bishkek
Kyrgyzstan 		Shabdan Baatyr St. / Akhunbayev St.
(42.84171, 74.63644) 		Unknown
Existing 		Unknown
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified)
Buffalo, NY
Erie Co.
United States 		Tifft St. / Rte 5 NB Ramps
(42.83952, -78.85611) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
32.4029 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Nakhodka, Primorye
Nakhodka
Russia 		Obkhodnaya magistral'
(42.83658, 132.87868) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, 2x2 max)
Fulton, WI
Rock Co.
United States 		STH 59 / I-39 SB Ramps
(42.83635, -89.02979) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
53.4238 		Freeway Ramps (Grade-Separated)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Fulton, WI
Rock Co.
United States 		STH 59 / I-39 NB Ramps
(42.83577, -89.02705) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.5420 		Freeway Ramps (Grade-Separated)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Fulton, WI
Rock Co.
United States 		STH 59 / E Richardson Springs Rd. / N Goede Rd.
(42.83490, -89.02549) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.3008 		Other (At-Grade)
Single-Lane 		2016 Previously had I-39 NB Ramps attached; these have been relocated to new roundabout to the west of this roundabout. ICD estimated from Google Maps linework.
Merrimac, MA
Essex Co.
United States 		Main St (Rte 110) / Church St / School St
(42.83371, -71.00250) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2015 aka Merrimac Square, off-street parking used on two quadrants
Lackawanna, NY
Erie Co.
United States 		McKinley Pkwy. / Dorrance Ave. / Vincent Ave.
(42.83200, -78.81520) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
30.6551 		Other (At-Grade)
Single-Lane 		2010 Restriped as single-lane roundabout. ICD estimated from Google Maps linework.
Lackawanna, NY
Erie Co.
United States 		Dorrance Ave. / S. Shore Blvd. / Ward Ct.
(42.83199, -78.80859) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0345 		Other (At-Grade)
Single-Lane 		2010 Restriped as single-lane roundabout. ICD estimated from Google Maps linework.
Newburyport, MA
Essex Co.
United States 		Spofford St. / Merrimac St. / Moseley Ave.
(42.83148, -70.90667) 		Roundabout
Existing 		Other
Unknown 		4 Approaches
2 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2013 Stop control at the crosswalk and painted splitter island on the western driveway leg. Year Completed estimated (2013-2014). ICD estimated from Google Maps linework.
Whitewater, WI
Walworth Co.
United States 		BUS 12-STH 59 (E Milwaukee St.-Elkhorn Rd.) / Bluff Rd. / Clay St.
(42.83102, -88.71045) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.2833 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 Opened October 2007. ICD estimated from Google Maps linework.
Casper, WY
Natrona Co.
United States 		Centennial Hills Blvd. / Waterford St.
(42.83014, -106.26682) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2006). South leg added 2009-2012.
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
Norway, WI
Racine Co.
United States 		Racine Ave. / Oakridge Dr. / S Loomis Rd.
(42.82942, -88.15896) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.5395 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
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.
Hopkins-Tifft, NY
Erie Co.
United States 		Botanical Dr. / McKinley Pkwy.
(42.82812, -78.82460) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Niskayuna, NY
Schenectady Co.
United States 		Research Circle (River Rd. / Elm Ave. / Van Antwerp Rd.)
(42.82561, -73.87882) 		Rotary
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, unspecified)
Nakhodka, Primorye
Nakhodka
Russia 		Nakhodkinskiy prospekt / Shkol'naya ulitsa
(42.82415, 132.89282) 		Other
Removed 		Other
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Buffalo, NY
Erie Co.
United States 		Norfred Dr.
(42.82391, -78.80598) 		Other
Existing 		Unknown
Unknown 		2 Approaches
8 Driveways
0.0000 		Other (At-Grade)
Unknown
Schenectady, NY
Schenectady Co.
United States 		Erie Blvd. / Nott St. / Rush St.
(42.82162, -73.93570) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2016 Year Completed estimated (2015-2016).
Nakhodka, Primorye
Nakhodka
Russia 		Nakhodkinskiy prospekt / Proganichnaya ulitsa
(42.82123, 132.88740) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Merrimack, NH
Hillsborough Co.
United States 		Spartan Way / Digital Dr.
(42.82118, -71.50855) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
46.4288 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 On campus of Fidelity Investments. ICD estimated from Google Maps linework.
Merrimack, NH
Hillsborough Co.
United States 		Spartan Way / Spartan Ln.
(42.81991, -71.51026) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
48.1818 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 On campus of Fidelity Investments. ICD estimated from Google Maps linework.
Lancaster, WI
Grant Co.
United States 		US 61-STH 35 / STH 81
(42.81577, -90.68369) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2023
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).
Holland, MI
Ottawa Co.
United States 		Westshore Mall / (parking)
(42.81319, -86.08626) 		Other
Existing 		Unknown
None 		3 Approaches
0 Driveways
26.8221 		Other (At-Grade)
Single-Lane 		2021 Entrance to The Shops at Westshore shopping mall
Zeeland, MI
Ottawa Co.
United States 		W Main Ave. / Washington Ave.
(42.81237, -86.03303) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.5501 		Other (At-Grade)
Single-Lane 		2019 https://www.hollandsentinel.com/news/20191123/zeeland-roundabout-now-open ICD estimated from Google Maps linework.
Byron Center, MI
Kent Co.
United States 		84th St. SE / Kalamazoo Ave. SE
(42.81191, -85.62478) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 https://www.mlive.com/news/grand-rapids/2023/08/roundabout-the-first-of-its-kind-in-kent-county-opens-ahead-of-schedule.html
Gaines Township, MI
Kent Co.
United States 		84th St. SE / Kalamazoo Ave. SE
(42.81188, -85.62476) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 https://www.mlive.com/news/grand-rapids/2023/08/roundabout-the-first-of-its-kind-in-kent-county-opens-ahead-of-schedule.html.
Fenton, MI
Genesee Co.
United States 		North Rd. / Torrey Rd. / (gas station access)
(42.80472, -83.72443) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.6687 		Other (At-Grade)
Single-Lane 		2019 100-ft inscribed circle diameter. Opened November 2019. https://www.thelascopress.com/2019/11/fentons-first-roundabout-is-open-for-business/ . ICD estimated from Google Maps linework.
Geneseo, NY
Livingston Co.
United States 		Genesee St. / Court St.
(42.80354, -77.82737) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2020 https://13wham.com/news/local/new-bridge-roundabout-in-geneseo-now-open-to-traffic
St Thomas, ON
Elgin
Canada 		Burwell Rd. / Ponsford Pl.
(42.80168, -81.16236) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2020 https://www.stthomas.ca/news/archived_news/burwell_road__ponsford_place_roundabout
Newburyport, MA
Essex Co.
United States 		Newburyport Turnpike (US 1) / State St
(42.79893, -70.87539) 		Rotary
Existing 		All-Way Yield
None 		3 Approaches
5 Driveways
74.4880 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		No Ped facilities ICD estimated from Google Maps linework.
Niskayuna, NY
Schenectady Co.
United States 		Rosendale Rd. / River Rd.
(42.79650, -73.85496) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.0144 		Other (At-Grade)
Single-Lane 		2020
Independence, MI
Oakland Co.
United States 		Sashabaw Rd. / Oak Hill Rd.
(42.79422, -83.37240) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2021 West leg is unpaved away from roundabout.
Hamburg, NY
Erie Co.
United States 		Rte 179 / Gateway Blvd. / Rte 5 (Lake Shore Rd.) Ramps
(42.79021, -78.84711) 		Rotary
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
128.8386 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		Lane change required to go further than the next exit. ICD estimated from Google Maps linework.
Orion Township, MI
Oakland Co.
United States 		Baldwin Rd. / Indianwood Rd. / Coats Rd.
(42.78413, -83.31979) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.0862 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 ICD estimated from Google Maps linework.
Orion, MI
Oakland Co.
United States 		E Flint St. / Orion Rd. / Miller Rd.
(42.78398, -83.23184) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2018
St Thomas, ON
Elgin
Canada 		Sunset Dr. / Talbot Hill / Wellington Rd.
(42.78327, -81.21434) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
47.3338 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2017 Sculpture of a train in central island. ICD estimated from Google Maps linework.
Vermillion, SD
Clay Co.
United States 		Rockwell Trl. / Joplin St.
(42.78285, -96.95270) 		Other
Existing 		Unknown
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2014 No splitter islands. Year Completed estimated (2013-2015).
Nakhodka, Primorye
Nakhodka
Russia 		ulitsa Pirogova / Sportivnaya ulitsa
(42.77908, 132.85609) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Cohoes, NY
Albany Co.
United States 		Preston Dr. / Stacey Ct.
(42.77582, -73.74557) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2014 Year Completed estimated (2013-2015).
Orion Township, MI
Oakland Co.
United States 		Orion Rd. / Stoney Creek Rd.
(42.77560, -83.22117) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 https://www.youtube.com/watch?v=SCHUqTp-aNI
St Thomas, ON
Elgin
Canada 		Wellington St. / Manor Rd.
(42.77450, -81.15594) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
40.0000 		Other (At-Grade)
Single-Lane 		2016
Hamburg, NY
Erie Co.
United States 		US 62 (S. Park Ave.) / Big Tree Rd.
(42.77190, -78.82391) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.3151 		Other (At-Grade)
Single-Lane 		2011 Fatal crash Oct 28, 2011. 11861-05. ICD estimated from Google Maps linework.
Salem, NH
Rockingham Co.
United States 		Tuscan Blvd. / Artisan Dr.
(42.77110, -71.22775) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2020 In a mixed-use development called Tuscan Village.
Salem, NH
Rockingham Co.
United States 		Via Toscana / S Village Dr.
(42.77099, -71.22354) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2020 In a mixed-use development called Tuscan Village.
Salem, NH
Rockingham Co.
United States 		Tuscan Blvd. / (unknown)
(42.77007, -71.22693) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2020 In a mixed-use development called Tuscan Village.
Milton, WI
Rock Co.
United States 		STH 59 / STH 26 SB Ramps
(42.76911, -88.92484) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Opened October 2009.
Salem, NH
Rockingham Co.
United States 		Tuscan Blvd. / S Village Dr.
(42.76904, -71.22519) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2020 In a mixed-use development called Tuscan Village.
Milton, WI
Rock Co.
United States 		STH 59 / STH 26 NB Ramps
(42.76902, -88.92310) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Opened October 2009.
Milton, WI
Rock Co.
United States 		STH 59 / CTH M
(42.76886, -88.91364) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.5632 		Other (At-Grade)
Single-Lane 		2009 Opened October 2009. ICD estimated from Google Maps linework.
East Aurora, NY
Erie Co.
United States 		Rte 20A / Rte 78
(42.76773, -78.62917) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2009 Converted from rotary.
Colonie, NY
Albany Co.
United States 		Johnson Rd. / Boght Rd. / St. Agnes Hwy
(42.76550, -73.73207) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
30.6881 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Independence, MI
Oakland Co.
United States 		S Baldwin Rd, / Clarkston Rd. / W Clarkston Rd.
(42.76543, -83.31409) 		Roundabout
Existing 		All-Way Yield
Pedestrian Hybrid Beacon (PHB, HAWK) 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2024 Elliptical shaped. Opened August 2024. https://www.rcocweb.org/675/Baldwin-RoadClarkston-Road-Roundabout-Op
Schenectady, NY
Schenectady Co.
United States 		Curry Rd. / Carman Rd. / Hamburg St.
(42.76513, -73.93874) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
41.2100 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Lansing Township, MI
Ingham Co.
United States 		Wood St. / Sams Way
(42.76276, -84.52303) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.5810 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Lansing Township, MI
Ingham Co.
United States 		Lake Lansing Rd. / Chamberlain Dr.
(42.76086, -84.52982) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
56.9966 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 ICD estimated from Google Maps linework.
Rotterdam, NY
Schenectady Co.
United States 		Rte 146 (Carman Rd.) / I-890 SB Ramps
(42.76055, -73.94206) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Freeway Ramps (Grade-Separated)
Single-Lane 		2022 Merging right-turn bypass lane on south leg. https://www.news10.com/news/albany-county/road-work-begins-to-upgrade-route-146-intersections/
Caledonia, WI
Racine Co.
United States 		STH 38 / CTH K (Northwestern Ave.)
(42.75957, -87.86417) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.9524 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 Opened November 2007. Right-turn bypass lane. ICD estimated from Google Maps linework.
Nashua, NH
Hillsborough Co.
United States 		SR 130 (Broad St.) / Coburn Ave. / Chuck Drudging Dr.
(42.75617, -71.51653) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.0619 		Other (At-Grade)
Single-Lane 		2002 Entrance to north high school, very heavy traffic in AM peak. ICD estimated from Google Maps linework.
Delta Township, MI
Eaton Co.
United States 		Willow Hwy. / Canal Rd.
(42.75553, -84.66173) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
33.3239 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Guilderland, NY
Albany Co.
United States 		Rte 146 (Carman Rd.) / Lydius St.
(42.75479, -73.94366) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2022 Skewed intersection. https://www.timesunion.com/news/article/Guilderland-roundabout-work-to-start-Sept-6-17410914.php
St Thomas, ON
Elgin
Canada 		Southgate Pkwy. / Penhale Ave.
(42.75348, -81.16312) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.0000 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2001-2006).
Janesville, WI
Rock Co.
United States 		N Harmony Town Hall Rd. / STH 26 SB Ramps
(42.75331, -88.95426) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Freeway Ramps (Grade-Separated)
Single-Lane 		2012 Interchange replaced single at-grade two-way stop-controlled intersection.
St Thomas, ON
Elgin
Canada 		Southgagte Pkwy. / Carolina Crescent / Peach Tree Blvd.
(42.75327, -81.15804) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.0000 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2009-2013).
St Thomas, ON
Elgin
Canada 		Southgate Pkwy. / Fairview Ave.
(42.75327, -81.16695) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2021 https://london.ctvnews.ca/the-most-famous-st-thomas-ont-native-you-ve-likely-never-heard-of-1.5629790
Hamburg, NY
Erie Co.
United States 		US 62 (S Park Ave.) / Sowles Rd.
(42.75150, -78.82474) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
36.8340 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Janesville, WI
Rock Co.
United States 		N Harmony Town Hall Rd. / STH 26 NB Ramps
(42.75114, -88.95416) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Freeway Ramps (Grade-Separated)
Single-Lane 		2012 Interchange replaced single at-grade two-way stop-controlled intersection.
St Thomas, ON
Elgin
Canada 		Southdale Line / Lake Margaret Trl.
(42.74945, -81.17914) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.8515 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
St Thomas, ON
Elgin
Canada 		Southdale Line / Fairview Rd.
(42.74922, -81.16651) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2021 https://www.facebook.com/cityofstthomas/photos/a.3739568726131579/3992567457498370
Latham, NY
Albany Co.
United States 		Latham Circle: Rte 2 / Rte 9
(42.74810, -73.76098) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
76.2000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2002
Grand Ledge, MI
Eaton Co.
United States 		M-43 (E Grand Ledge Hwy.) / (school access road)
(42.74365, -84.75917) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 https://www.fox47news.com/neighborhoods/delta-township-grand-ledge/grand-ledge-public-schools-roundabout-project-on-m-43-is-complete
Yorkville, WI
Racine Co.
United States 		US 45 / STH 20 (Washington Ave.) / N Colony Ave.
(42.74216, -88.05209) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.8396 		Other (At-Grade)
Single-Lane 		2010 Opened November 2010. ICD estimated from Google Maps linework.
Kansasville, WI
Racine Co.
United States 		STH 20 / STH 75 / CTH S
(42.74191, -88.11098) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.7169 		Other (At-Grade)
Single-Lane 		2014 Rural, high-speed approaches. ICD estimated from Google Maps linework.