Roundabouts Database

29867 Results

Search by location, intersection, and comments with the Quick Search below. You can search all other attributes by clicking Advanced Search. Sort results by clicking the headers of any column. Click the Intersection name for a details and aerial view. Search results pages can be bookmarked. Results can be exported to KML for viewing in Google Earth.


Search Advanced Search Export as KML
City, State
County
Country 		Intersection
(Lat, Lng) 		Type
Status 		Control Type / Other Control Type Approaches / Driveways / ICD (m) Functional Class /
LaneType 		Year Completed Comments
Baltimore, MD
Baltimore City Co.
United States 		Guilford Ave. / E 32nd St.
(39.32703, -76.61345) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-lane w/ Traversable Central Island 		2012
Platte City, MO
Platte Co.
United States 		N Apple Blossom Dr. / NW Seven Bridges Rd / (parking)
(39.32728, -94.78581) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2006 Small splitter island far away from circulatory roadway on west leg.
Urbana, MD
Frederick Co.
United States 		MD 355 / Sugarloaf Pkwy.
(39.32862, -77.35193) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.8013 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Rende, Calabria
Cosenza
Italy 		Via Tevere
(39.32906, 16.24944) 		Roundabout
Existing 		All-Way Yield
Unknown 		2 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Athens, OH
Athens Co.
United States 		E Stimson Ave. / US 33 Ramps / US 50 Ramps
(39.32934, -82.08530) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Single-Lane 		2023 The roundabout collects and distributes traffic from multiple ramps in the US 33/US 50/Stimson Avenue interchange. https://www.transportation.ohio.gov/projects/projects/106553
Athens, OH
Athens Co.
United States 		W Union St. / Smith St. / (parking lot)
(39.32941, -82.10731) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.1719 		Other (At-Grade)
Single-Lane 		2014 Small roundabout, primarily to assist with clarifying driveway locations and where peds should cross. Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Truckee, CA
Nevada Co.
United States 		Donner Pass Rd. / Church St. / Truckee Way
(39.32943, -120.18218) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2018-2020).
Harpers Ferry, WV
Jefferson Co.
United States 		Gap View Blvd. / Gap View Cir.
(39.33013, -77.80121) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Urbana, MD
Frederick Co.
United States 		MD 355 / Sprigg St.
(39.33070, -77.35654) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.4954 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
West Chester Township, OH
Butler Co.
United States 		Lakota Dr. W / Eagle Ridge Dr. / Eagle Ridge Ct.
(39.33111, -84.42783) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.5619 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Rende, Calabria
Cosenza
Italy 		Via Francesco e Carolina Principe / Via Giosue Carducci
(39.33136, 16.24920) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Brunswick, MD
Frederick Co.
United States 		Potomac View Parkway / Volunteer Drive
(39.33145, -77.63483) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.1808 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Platte City, MO
Platte Co.
United States 		MO 92 / MO 45 Spur
(39.33177, -94.89577) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2022 Year Completed estimated (2021-2022).
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.
Brunswick, MD
Frederick Co.
United States 		MD 17 / Volunteer Drive
(39.33261, -77.63365) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.9516 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 ICD estimated from Google Maps linework.
Brunswick, MD
Frederick Co.
United States 		Potomac View Parkway / Dutchmans Creek
(39.33265, -77.63770) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.3326 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Bowling Green, MO
Pike Co.
United States 		US 61 Business / Sharry St. / Town Center Dr. / (unknown)
(39.33272, -91.18290) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
57.2748 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2007-2009). ICD estimated from Google Maps linework.
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
Bowling Green, MO
Pike Co.
United States 		US 61 Business / MO 161 / Court St
(39.33344, -91.19504) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2022 https://www.modot.org/roundabout-bowling-green
Mason, OH
Warren Co.
United States 		Freedom Way / Veterans Pkwy.
(39.33363, -84.30647) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.1035 		Other (At-Grade)
Single-Lane 		2015 Third leg of intersection not connected yet ICD estimated from Google Maps linework.
Urbana, MD
Frederick Co.
United States 		Hartwick Ln. / Singleton Terrace
(39.33399, -77.33970) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Harpers Ferry, WV
Jefferson Co.
United States 		Gap View Blvd. / Gap View Blvd.
(39.33462, -77.80635) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Truckee, CA
Nevada Co.
United States 		Donner Pass Rd. / Stockrest Spring Rd.
(39.33476, -120.17472) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
1 Driveways
0.0000 		Other (At-Grade)
Unknown 		2019
Brunswick, MD
Frederick Co.
United States 		MD 17 / Rosemont Drive / Dutchmans Creek
(39.33480, -77.63671) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.4167 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 ICD estimated from Google Maps linework.
Urbana, MD
Frederick Co.
United States 		Sugarloaf Pkwy. / Denison St.
(39.33490, -77.34180) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
36.9503 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2000 ICD estimated from Google Maps linework.
Urbana, MD
Frederick Co.
United States 		Bush Creek Dr. / Major Smith Ln.
(39.33507, -77.35263) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.6364 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Baltimore, MD
Baltimore City Co.
United States 		Canterbury Rd. / W 39th St.
(39.33569, -76.62047) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
16.6275 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2013 ICD estimated from Google Maps linework.
Castle Rock, CO
Douglas Co.
United States 		Crystal Valley Pkwy. / Plum Creek Blvd.
(39.33642, -104.86553) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2024 https://m.facebook.com/story.php?id=100064394515704&story_fbid=2014182452315413
Rende, Calabria
Cosenza
Italy 		Via Francesco e Carolina Principe / Via Corrado Alvaro
(39.33687, 16.24802) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Rende, Calabria
Cosenza
Italy 		Via Don Minzoni / Via Carlo Bilotta / Corso Antonio Gramsci
(39.33694, 16.24177) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Lisbon, MD
Howard Co.
United States 		MD 94 / MD 144
(39.33700, -77.07360) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		1993 First roundabout in Maryland. Built initially as temporary, made permanent after one month.
West Chester, OH
Butler Co.
United States 		Butler Warren Rd. / Barret Rd. / Western Row Rd.
(39.33709, -84.34926) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2021 On Butler County-Warren County line and West Chester/Mason city limit line.
Rosemont, MD
Frederick Co.
United States 		MD 17 / MD 180
(39.33768, -77.63950) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
30.4828 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Medfield, MD
Baltimore City
United States 		Weldon Ave. / Elsa Terrace
(39.33803, -76.63881) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway; pedestrian access to central island.
Maineville, OH
Warren Co.
United States 		Miami Bluffs Blvd. / Crossing Dr.
(39.33828, -84.24190) 		Other
Existing 		All-Way Stop
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on north or south legs.
Truckee, CA
Nevada Co.
United States 		Donner Pass Rd. / Pioneer Trail Rd.
(39.33904, -120.17360) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.3378 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Rende, Calabria
Cosenza
Italy 		Via Francesco e Carolina Principe / Via Vittorio Alfieri / Via Fratelli E.L. Salerno
(39.33909, 16.24758) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Platte City, MO
Platte Co.
United States 		MO-N / NW 136 St. / Humphreys Rd.
(39.33927, -94.77933) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2012).
Cooksville, MD
Howard Co.
United States 		Long Corner Rd. / Penn Shop Rd.
(39.33938, -77.15284) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (1988-2005).
Urbana, MD
Frederick Co.
United States 		Royal Crest Cir. / Aberdeen Way
(39.34020, -77.33396) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Knoxville, MD
Frederick Co.
United States 		Burkittsville Rd. (MD 17) / US 340 WB Ramps
(39.34056, -77.64052) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.8710 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 Year Completed estimated (2009-2011). ICD estimated from Google Maps linework.
Truckee, CA
Nevada Co.
United States 		Hwy 89 / Henness Rd. / Donner Pass Rd.
(39.34103, -120.17220) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
52.6496 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2008 Functional Class: Arterial ICD estimated from Google Maps linework.
Park Lane, MD
Baltimore City
United States 		Pall Mall Rd. / Wylie Ave. / Edgecombe Cir. S
(39.34212, -76.66482) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Parking along circulatory roadway.
Rende, Calabria
Cosenza
Italy 		Via Londra / Via Mosca
(39.34271, 16.23899) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Urbana, MD
Frederick Co.
United States 		Braidwood Dr. / Ethan Ridge Ave.
(39.34386, -77.32911) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2008-2009).
Reno, NV
Washoe Co.
United States 		St. James Pkwy. / N Earlham Ct.
(39.34445, -119.80783) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
West Chester, OH
Butler Co.
United States 		Lesourdsville West Chester Rd. / Becket Ridge Blvd.
(39.34459, -84.41655) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2020 Near a junior high school. https://www.journal-news.com/news/newest-roundabout-opens-in-west-chester-as-dangerous-intersection-work-begins/PWKR73DU2VD53AOPGDM3VII2U4/
Truckee, CA
Nevada Co.
United States 		Hwy 89 / Prosser Dam Rd. / Alder Dr.
(39.34531, -120.17300) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.2574 		Other (At-Grade)
Single-Lane 		2012 ICD estimated from Google Maps linework.
Rende, Calabria
Cosenza
Italy 		SP90 / Via Giuseppe Verdi / Via Francesco e Carolina Princpe
(39.34635, 16.24404) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Rende, Calabria
Cosenza
Italy 		Via Francesco e Carolina Principe
(39.34637, 16.24618) 		Roundabout
Existing 		All-Way Yield
Unknown 		2 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Lisbon, MD
Howard Co.
United States 		MD 94 / Old Frederick Rd. (Lisbon North)
(39.34810, -77.06930) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.7839 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Truckee, CA
Nevada Co.
United States 		Prosser Dam Rd. / Henness Rd.
(39.34961, -120.16790) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.5541 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
West Chester Township, OH
Butler Co.
United States 		Smith Rd. / Beckett Rd. / Beckett Meadows Rd.
(39.35097, -84.45265) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
45.2538 		Other (At-Grade)
Single-Lane 		2018 Opened May 2018. Entering ADT = 18,670 vpd as of Sept 2018. ICD estimated from Google Maps linework.
Rossville, MD
Baltimore Co.
United States 		Franklin Square Dr. / Upton Cir.
(39.35121, -76.48864) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
South Lebanon, OH
Warren Co.
United States 		Grandin Rd. / King Ave. / (parking)
(39.35121, -84.24123) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2023 https://www.youtube.com/watch?v=yhm7HUcqkV0
Platte City, MO
Platte Co.
United States 		4th St. / Kentucky Ave. / Norma Ln.
(39.35147, -94.77915) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2016 Year Completed estimated (2016-2017).
Rende, Calabria
Cosenza
Italy 		Via Guglielmo Marconi / A2 Ramps
(39.35302, 16.23535) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane 		Parking along circulatory roadway.
Kearney, MO
Clay Co.
United States 		W 19th St. / Watson Dr.
(39.35316, -94.37542) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 Designed for future expansion to multilane. https://www.modot.org/interstate-35-interchange-improvements-clay
Kearney, MO
Clay Co.
United States 		Nation Rd. / W 19th St. / NE 144th St.
(39.35350, -94.38891) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 https://www.modot.org/interstate-35-interchange-improvements-clay
Kearney, MO
Clay Co.
United States 		W 19th St. / Sam Barr Dr. (future)
(39.35391, -94.38445) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 North leg (Sam Barr Dr.) stubbed on opening in 2023. https://www.modot.org/interstate-35-interchange-improvements-clay
Morrow, OH
Warren Co.
United States 		Morrow-Cozaddale Rd. / (unknown)
(39.35434, -84.16288) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0931 		Other (At-Grade)
Single-Lane 		2008 Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
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
Morrow, OH
Warren Co.
United States 		Hopewell Valley Dr. / Village View Ln.
(39.35521, -84.15327) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.7920 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
West Chester Township, OH
Butler Co.
United States 		Dudley Dr. / University Dr.
(39.35646, -84.36877) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4746 		Other (At-Grade)
Single-Lane 		2005 Painted splitter island on northwest leg. ICD estimated from Google Maps linework.
Reno, NV
Washoe Co.
United States 		Douglas Fir Dr
(39.35651, -119.84460) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Inwood, WV
Berkeley Co.
United States 		Middleway Pike / WV-51 / Surveyor Dr.
(39.35656, -78.03477) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
41.5563 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 ICD estimated from Google Maps linework.
West Chester Township, OH
Butler Co.
United States 		Hutzelman Way / Plum Tree Dr.
(39.35732, -84.46578) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.3977 		Other (At-Grade)
Single-Lane 		2002 Painted splitter islands. ICD estimated from Google Maps linework.
Kings Mills, OH
Warren Co.
United States 		King Ave. / Kings Ct.
(39.35752, -84.24552) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		2023 https://www.youtube.com/watch?v=yhm7HUcqkV0
Young American, CO
Douglas Co.
United States 		E Plum Creek Pkwy. / Lake Gulch Rd. / S Gilbert St.
(39.35773, -104.84209) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2020 Year Completed estimated (2019-2021).
Greensburg, IN
Decatur Co.
United States 		W Veterans Way / N Memorial Dr.
(39.35827, -85.50471) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2017 Year Completed estimated (2014-2019).
Reno, NV
Washoe Co.
United States 		Piney Creek Parklet
(39.35846, -119.83950) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Reno, NV
Washoe Co.
United States 		Myrtlewood Parklet
(39.35885, -119.83477) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
Mason, OH
Warren Co.
United States 		Mason Grand Dr. / Parkmoor Dr. / Skyview Dr.
(39.35923, -84.27451) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on four legs.
Inwood, WV
Berkeley Co.
United States 		WV-51 / (unknown)
(39.35929, -78.03503) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
53.5593 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 ICD estimated from Google Maps linework.
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).
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
Inwood, WV
Berkeley Co.
United States 		Gerrardstown Rd. / Winchester Ave.
(39.36098, -78.03754) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
49.8644 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2018 ICD estimated from Google Maps linework.
Inwood, WV
Berkeley Co.
United States 		SR 51 (Gerrardstown Rd.) / Pilgrim St.
(39.36208, -78.04223) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2022 At-grade rail crossing approximately 200 ft east. Year Completed estimated (2021-2023).
West Chester Township, OH
Butler Co.
United States 		Tylersville Rd. / Beckett Rd. / (parking)
(39.36211, -84.45517) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		3 Approaches
1 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2023 This is the 40th roundabout in Butler County. The Butler County Engineer's Office has planned, designed, reviewed, or constructed 37 out of the 40.
Inwood, WV
Berkeley Co.
United States 		SR 51 (Gerrardstown Rd.) / I-81 SB Ramps / Arden-Nollville Rd.
(39.36247, -78.04925) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2023 https://www.journal-news.net/news/local-news/official-phase-one-of-i-81-inwood-bypass-nearly-done/article_87d020ff-2d39-5835-8d9a-c25afa4402ea.html
Ross Township, OH
Butler Co.
United States 		SR 748 (Millville Shandon Rd.) / Layhigh Rd.
(39.36255, -84.69648) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.4761 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
Fairfield, OH
Butler Co.
United States 		Tylersville Rd. / Seward Rd.
(39.36256, -84.49156) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2024
Inwood, WV
Berkeley Co.
United States 		SR 51 (Gerrardstown Rd.) / I-81 NB Ramps
(39.36263, -78.04701) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2023 https://www.journal-news.net/news/local-news/official-phase-one-of-i-81-inwood-bypass-nearly-done/article_87d020ff-2d39-5835-8d9a-c25afa4402ea.html
Castle Rock, CO
Douglas Co.
United States 		N Ridge Rd. / Miller Blvd.
(39.36484, -104.81766) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
47.0915 		Other (At-Grade)
Single-Lane 		2009 Free-flowing right-turn bypass lane on north leg. Year Completed estimated (2008-2011). ICD estimated from Google Maps linework.
Basalt, CO
Pitkin Co.
United States 		Emma Rd. / Basalt Ave.
(39.36484, -107.03476) 		Other
Existing 		Unknown
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Painted splitter islands.
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 		Ballenger Creek Pike (MD 351) / Elmer Derr Rd. / English Muffin Way
(39.36625, -77.45071) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.8571 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2012). ICD estimated from Google Maps linework.
Mason, OH
Warren Co.
United States 		Mason Rd. / Sarah Dr.
(39.36641, -84.31909) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
32.3170 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Kearney, MO
Clay Co.
United States 		Watson Dr. / (parking access)
(39.36660, -94.36970) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.5469 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
Kearney, MO
Clay Co.
United States 		Rte 92-W 6th St. / Sam Barr Dr.
(39.36785, -94.38055) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
47.0895 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 ICD estimated from Google Maps linework.
Kearney, MO
Clay Co.
United States 		Rte 92-W 6th St. / Nation Rd.
(39.36791, -94.38893) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.8594 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Ballenger Creek, MD
Frederick Co.
United States 		McLauren Ln. / Carston Ct. / Duncan Pl.
(39.36852, -77.43743) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Smithville, MO
Clay Co.
United States 		MO-92 / S Commercial Ave.
(39.36881, -94.57949) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
36.9324 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Castle Rock, CO
Douglas Co.
United States 		S Wilcox St. / South St.
(39.36917, -104.86011) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 http://crgov.com/3296/Wilcox-and-South-Roundabout
Castle Rock, CO
Douglas Co.
United States 		N Ridge Rd. / E Enderud Blvd.
(39.36979, -104.82294) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
44.3183 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 ICD estimated from Google Maps linework.
Liberty Township, OH
Butler Co.
United States 		Veterans Blvd. / Reagan Way
(39.37030, -84.35617) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
54.8637 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2022 New roundabout on new alignment, Veterans Blvd, constructed for new commercial development (Costco).
Liberty Township, OH
Butler Co.
United States 		Veterans Blvd. / Bell Blvd.
(39.37220, -84.35684) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
54.8637 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2022 New road, Veterans Blvd, constructed for new development.
Hamilton, OH
Butler Co.
United States 		Hamilton Mason Rd. / LeSourdsville West Chester Rd.
(39.37223, -84.42497) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
40.6237 		Other (At-Grade)
Single-Lane 		2018 Opened August 2018. ICD estimated from Google Maps linework.
Liberty Township, OH
Butler Co.
United States 		SR 129 / Cox Rd. / Veterans Blvd.
(39.37289, -84.36015) 		Roundabout
Existing 		All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB) 		4 Approaches
0 Driveways
62.4840 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2022 New roundabout partially opened in November 2022. Full operation is scheduled in mid-December 2022. SR 129 highway was extended to Cox Road (local road) and new alignment (Veterans Blvd) was constructed to help alleviate traffic congestion and safety issues involving Liberty Way interchange with I-75.
Fairfield Township, OH
Butler Co.
United States 		Hamilton Mason Rd. / Liberty Fairfield Rd.
(39.37527, -84.48046) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.6219 		Other (At-Grade)
Single-Lane 		2008 Since completion, has reduced accidents by 80%. Replaced two offset T intersections. Previously controlled by two-way stop Functional Class: Major Collector ICD estimated from Google Maps linework.