28735 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
Bloomington, IN
Monroe Co.
United States
N Monroe St. / W 17th St. / W Arlington Rd.
(39.17914, -86.54712)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
1 Driveways
37.0325
Other (At-Grade)
Single-Lane
2014 ICD estimated from Google Maps linework.
Winchester, VA
Winchester City
United States
Mahone Dr. / Rhodes Cir. / Gordon Pl. / McGruder Ct.
(39.18038, -78.19089)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Gaithersburg, MD
Montgomery Co.
United States
Hoover Farm Dr. / Holland Meadow Ln.
(39.18129, -77.13125)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Carson City, NV
Carson City Co.
United States
Northridge Dr. / Spooner Dr.
(39.18150, -119.74896)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
99.9997
Other (At-Grade)
Single-Lane
1997 Painted splitter islands on Northridge approaches. Year Completed estimated (1994-1999).
Winchester, VA
Winchester City
United States
Mahone Dr. / Ramseur Ln.
(39.18178, -78.18846)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Carson City, NV
Carson City Co.
United States
Northridge Dr. / Carriage Crest Dr.
(39.18290, -119.75077)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
24.3840
Other (At-Grade)
Single-Lane
1997 Year Completed estimated (1994-1999).
Germantown, MD
Montgomery Co.
United States
Observation Dr. / Goldenrod Ln.
(39.18419, -77.24566)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
45.7200
Other (At-Grade)
Multilane (2 Lane, 2x2 max)
2013 Year Completed estimated (2012-2014).
Carson City, NV
Carson City Co.
United States
Northridge Dr. / Tablerock Dr.
(39.18460, -119.75685)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
25.9080
Other (At-Grade)
Single-Lane
1999 Year Completed estimated (1994-1999).
Germantown, MD
Montgomery Co.
United States
Club Hill Dr. / Thackery Pl.
(39.18531, -77.27012)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Winchester, VA
Winchester City Co.
United States
E Piccadilly St. / N East Ln. / National Ave.
(39.18564, -78.16067)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
25.9204
Other (At-Grade)
Single-Lane
2015 https://www.facebook.com/winchestervagov/posts/roundabout-at-national-avenuepiccadilly-street-intersection-is-really-beginning-/10153626945621055/. ICD estimated from Google Maps linework.
Manhattan, KS
Riley Co.
United States
4th St. / Bluemont Ave.
(39.18669, -96.56160)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
41.6571
Other (At-Grade)
Single-Lane
2010 Previously controlled by two-way stop ICD estimated from Google Maps linework.
Germantown, MD
Montgomery Co.
United States
Pickering Dr. / Pickering Pl.
(39.18854, -77.27173)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Riverside, MO
Platte Co.
United States
N Woodward Rd. / NW 52nd St.
(39.18892, -94.63177)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
37.9531
Other (At-Grade)
Single-Lane
2012 ICD estimated from Google Maps linework.
Long Reach, MD
Howard Co.
United States
Shining Oceans Way / Dried Earth Blvd.
(39.18977, -76.80673)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Bloomington, IN
Monroe Co.
United States
W Woodyard Rd. / N Curry Pike / W Hunter Valley Rd.
(39.19027, -86.58242)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
56.3877
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
2022 Series of 2 roundabouts. Striped out spiral in circulatory roadway. https://www.heraldtimesonline.com/story/news/traffic/2022/03/03/work-2-6-m-double-roundabout-bloomington-start-next-week/9332294002/
Germantown, MD
Montgomery Co.
United States
Germantown Rd. / Watkins Mill Rd. / Blunt Rd.
(39.19058, -77.22492)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
1999 Right-turn bypass lane on north leg. Year Completed estimated (1993-2005).
Bloomington, IN
Monroe Co.
United States
W Woodyard Rd. / N Smith Pike
(39.19089, -86.58340)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2022 Series of 2 roundabouts.
Columbia, MD
Howard Co.
United States
Cradlerock Way / Homespun Dr.
(39.19095, -76.83787)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
22.2158
Other (At-Grade)
Single-Lane
2001 Completed May 21, 2001. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Manhattan, KS
Riley Co.
United States
Anderson Ave. / Kimball Ave. / Scenic Dr.
(39.19169, -96.64167)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
62.0184
Other (At-Grade)
Multilane (2 Lane, unspecified)
2018 ICD estimated from Google Maps linework.
Hanover, MD
Anne Arundel Co.
United States
Ridge Rd. / Corporate Center Dr.
(39.19204, -76.70216)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
31.4719
Other (At-Grade)
Single-Lane
2004 ICD estimated from Google Maps linework.
Winchester, VA
Frederick Co.
United States
Conference Center Dr. / (unknown)
(39.19363, -78.20051)
Unknown
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Kansas City, MO
Clay Co.
United States
N Mercier St. / N Summit St.
(39.19389, -94.59236)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
53.3400
Other (At-Grade)
Single-Lane
2016 Year Completed estimated (2016-2017).
Cagliari, Sardinia
Cagliari
Italy
Viale Poetto / Via Lungo Saline / Via Marina Piccola
(39.19421, 9.15682)
Other
Existing
Other
Unknown
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (3+ Lane)
Mix of stop and yield control on entry.
Aspen, CO
Pitkin Co.
United States
SR 82 / Maroon Creek Rd. / Castle Creek Rd.
(39.19557, -106.84025)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
60.9600
Other (At-Grade)
Multilane (2 Lane, unspecified)
2000
Kansas City, MO
Platte Co.
United States
NW Waukomis Dr. / NW Englewood Rd.
(39.19588, -94.60730)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
35.0520
Other (At-Grade)
Single-Lane
2020
Kansas City, MO
Platte Co.
United States
NW 56th St. / N Northwood Rd.
(39.19598, -94.63168)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
38.1000
Other (At-Grade)
Single-Lane
2019
Hillsboro, VA
Loudoun Co.
United States
Charles Town Pike (Rte 9) / Hillsboro Rd. / (school access)
(39.19806, -77.72000)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
2021 https://www.washingtonpost.com/transportation/2021/07/23/virginia-hillsboro-walkable-roads-loudoun/
Carson City, NV
Carson City Co.
United States
Arrowhead Dr. / I-580 SB Ramp
(39.19810, -119.77540)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
27.7669
Freeway Ramps (Grade-Separated)
Single-Lane
2002 Future SB on-ramp for Carson City Freeway (I-580). Overpass and roundabouts completed in 2002; freeway ramps completed ~2005. ICD estimated from Google Maps linework.
Carson City, NV
Carson City Co.
United States
Arrowhead Dr. / I-580 NB Ramps / Imus Rd.
(39.19840, -119.77380)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.6923
Freeway Ramps (Grade-Separated)
Single-Lane
2002 NB off-ramp for Carson City Freeway (I-580) and extension of Imus Road. Overpass and roundabouts completed in 2002. ICD estimated from Google Maps linework.
Cagliari, Sardinia
Cagliari
Italy
Viale Salvatore Ferrara / Via Ramontana / Via Borgo Sant'Elia / Viale San Bartolomeo
(39.19857, 9.14366)
Other
Existing
All-Way Stop
Unknown
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Columbia, MD
Howard Co.
United States
Owen Brown Rd. / Martin Rd.
(39.19989, -76.86930)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.9560
Other (At-Grade)
Single-Lane
2004 Year Completed estimated (2002-2005).
Hillsboro, VA
Loudoun Co.
United States
Charles Town Pike (Rte 9) / Stony Point Rd.
(39.20016, -77.72763)
Roundabout
Existing
All-Way Yield
None
3 Approaches
1 Driveways
0.0000
Other (At-Grade)
Single-Lane
2021 https://www.washingtonpost.com/transportation/2021/07/23/virginia-hillsboro-walkable-roads-loudoun/
Columbia, MD
Howard Co.
United States
Stevens Forest Rd. / Farewell Rd. / Night Street Hill
(39.20114, -76.84781)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
27.4320
Other (At-Grade)
Single-lane w/ Traversable Central Island
2019
Manhattan, KS
Riley Co.
United States
Kimball Ave. / Grand Mere Pkwy.
(39.20168, -96.63786)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
32.3931
Other (At-Grade)
Single-Lane
2000 Completed 3/2000. Built as part of new Colbert Hills Golf Course. Fatal crash January 31, 2010. 11861-05. Functional Class: Collector ICD estimated from Google Maps linework.
Cagliari, Sardinia
Cagliari
Italy
Viale Poetto / Via Campioni d'Italia 1969-70 / Via Amerigo Vespucci / Viale San Bartolomeo
(39.20178, 9.14142)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
Unknown
Multilane (2 Lane, 2x1 max)
Via Amerigo Vespucci is one-way entering; Viale San Bartolomeo is one-way exiting.
Winchester, VA
Frederick Co.
United States
Campus Blvd. / SR 37 SB Ramps
(39.20215, -78.19348)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
41.1480
Freeway Ramps (Grade-Separated)
Single-Lane
2015 Right-turn merging bypass lane on east leg. Truck apron much wider than circulatory roadway. Year Completed estimated (2013-2017).
Parkville, MO
Platte Co.
United States
N Nevada Ave. / Thousand Oaks Pl.
(39.20318, -94.74726)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Germantown, MD
Montgomery Co.
United States
Crystal Rock Dr. / Century Blvd.
(39.20326, -77.27356)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
48.7680
Other (At-Grade)
Multilane (2 Lane, 2x2 max)
2015 Striping added 2019-2021. Inconsistent lane use markings between entry and circulatory roadway.
Germantown, MD
Montgomery Co.
United States
Milestone Manor Ln. / Emerald Dr.
(39.20479, -77.25262)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Cagliari, Sardinia
Cagliari
Italy
Viale Armando Diaz / Via Campioni d'Italia 1969-70 / Via dei Salinieri / Via Generale Stefano Cagna / Via della Pineta
(39.20491, 9.13802)
Roundabout
Existing
All-Way Yield
Unknown
5 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Clarksville, MD
Howard Co.
United States
Brighton Dam Rd. / Ten Oaks Rd.
(39.20491, -76.95455)
Roundabout
Existing
Unknown
Unknown
3 Approaches
0 Driveways
35.1680
Other (At-Grade)
Single-Lane
2008 ICD estimated from Google Maps linework.
Germantown, MD
Montgomery Co.
United States
Milestone Manor Ln. / Royal Crown Dr.
(39.20518, -77.25877)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Columbia, MD
Howard Co.
United States
Tamar Dr. / Old Montgomery Rd.
(39.20533, -76.82822)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
30.4800
Other (At-Grade)
Single-Lane
2022 https://www.howardcountymd.gov/News090122c
Germantown, MD
Montgomery Co.
United States
Milestone Manor Ln. / Stardrift Dr.
(39.20560, -77.25039)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Claycomo, MO
Clay Co.
United States
Ford Motor Plant No 4 Rd. / (parking)
(39.20602, -94.47845)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
45.7200
Other (At-Grade)
Multilane (2 Lane, unspecified)
2013 Year Completed estimated (2012-2013). Reconfiguration of factory entrance and parking circulation.
Ellicott City, MD
Howard Co.
United States
MD 103 / MD 100 EB Ramps
(39.20733, -76.78243)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
30.5396
Freeway Ramps (Grade-Separated)
Single-Lane
1998 Opened November 1998. ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States
Oakland Mills Rd. / Old Montgomery Rd.
(39.20788, -76.83157)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
38.1000
Other (At-Grade)
Single-Lane
2017
Kansas City, MO
Platte Co.
United States
N Nevada Ave. / NW 62nd Pl.
(39.20830, -94.74611)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Kansas City, MO
Platte Co.
United States
NW 62nd Terrace / NW Prairie View Rd. / N Chatham Ave.
(39.20831, -94.64319)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
48.7680
Freeway Ramps (Grade-Separated)
Single-Lane
2021 https://www.kcmo.gov/Home/Components/FacilityDirectory/FacilityDirectory/95/360
Columbus, IN
Bartholomew Co.
United States
11th St. / Lindsey St. / Brown St.
(39.20836, -85.92443)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
44.4206
Other (At-Grade)
Multilane (2 Lane, unspecified)
2008 At-grade rail crossing on west leg (flashers, no gates). ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States
MD 103 / MD 100 WB Ramps
(39.20846, -76.78294)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
33.3154
Freeway Ramps (Grade-Separated)
Single-Lane
1998 Opened November 1998. ICD estimated from Google Maps linework.
Germantown, MD
Montgomery Co.
United States
Milestone Manor Ln. / Manor View Cir. / Milestone Manor Ct.
(39.20854, -77.24868)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Elkridge, MD
Howard Co.
United States
Toomey Ln. / Clements Ln.
(39.20950, -76.71291)
Other
Existing
Unknown
Unknown
2 Approaches
4 Driveways
0.0000
Other (At-Grade)
Unknown
No splitter islands.
Columbia, MD
Howard Co.
United States
Trotter Rd. / South Wind Cir.
(39.20956, -76.91891)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
23.1353
Other (At-Grade)
Single-Lane
1997 Functional Class: Collector. Year Completed estimated (1993-2001). ICD estimated from Google Maps linework.
Kansas City, MO
Platte Co.
United States
Lewis St. / (parking access)
(39.20966, -94.68484)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
21.2845
Other (At-Grade)
Single-Lane
2005 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.
Parkville, MO
Platte Co.
United States
MO 45 (Tom Watson Pkwy.) / National Dr.
(39.21016, -94.70027)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
48.1210
Other (At-Grade)
Single-Lane
2000 Functional Class: Arterial 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.
Elkridge, MD
Howard Co.
United States
Toomey Ln. / Fairlee Rd.
(39.21083, -76.71160)
Roundabout
Existing
All-Way Yield
None
3 Approaches
2 Driveways
27.4320
Other (At-Grade)
Single-Lane
2002
Manhattan, KS
Riley Co.
United States
Gary Ave. / Candlewood Dr.
(39.21087, -96.61885)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
21.2841
Other (At-Grade)
Single-Lane
1997 Considered to be the First Modern Roundabout in the State of Kansas. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Elkridge, MD
Howard Co.
United States
Elkridge Crossing Way / Doctor Patel Dr.
(39.21091, -76.72512)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
31.4634
Other (At-Grade)
Single-Lane
2007 East leg stubbed for future. ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States
Banneker Rd. / Cul-de-sac
(39.21141, -76.87041)
Traffic Calming Circle
Existing
Unknown
Unknown
3 Approaches
0 Driveways
17.5824
Other (At-Grade)
Single-Lane
Functional Class: Local ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States
Snowden River Pkwy. / MD 100 WB Ramps
(39.21233, -76.79544)
Roundabout
Existing
All-Way Yield
Metering Signal
3 Approaches
0 Driveways
25.9105
Freeway Ramps (Grade-Separated)
Single-Lane
1998 Opened November 1998. Metering signal on Snowden River Pkwy approach. ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States
Charter Dr. / (parking)
(39.21273, -76.88310)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
27.4320
Other (At-Grade)
Single-Lane
2013 Converted from cul-de-sac. Year Completed estimated (2011-2014).
Columbia, MD
Howard Co.
United States
Oakland Mills Rd. / MD 175 SB Ramps / (unknown)
(39.21308, -76.83456)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
36.5760
Freeway Ramps (Grade-Separated)
Single-Lane
2017 Year Completed estimated (2016-2017).
Parkville, MO
Platte Co.
United States
National Dr. / Ridge Rd.
(39.21333, -94.70781)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
49.9696
Other (At-Grade)
Single-Lane
Functional Class: Local ICD estimated from Google Maps linework.
Gladstone, MO
Clay Co.
United States
NE Antioch Rd. / NE Pleasant Valley Rd.
(39.21369, -94.53468)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
34.2382
Other (At-Grade)
Single-Lane
2018 https://www.linecreekloudmouth.com/blog/street-improvements/ ICD estimated from Google Maps linework.
Clarksburg, MD
Montgomery Co.
United States
Clarksburg Rd. / W Old Baltimore Rd.
(39.21396, -77.29731)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
42.6720
Other (At-Grade)
Single-Lane
2019 Year Completed estimated (2019-2020).
Columbia, MD
Howard Co.
United States
Golden Straw Ln. / Long Meadow Ct.
(39.21441, -76.81085)
Traffic Calming Circle
Existing
Other
None
3 Approaches
0 Driveways
99.0123
Other (At-Grade)
Single-Lane
2000 Yield control only on west leg. ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States
Harpers Farm Rd. / Campus Dr.
(39.21534, -76.88023)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
31.4614
Other (At-Grade)
Single-Lane
2003 Originally had 4 legs. ICD estimated from Google Maps linework.
Sycamore Township, OH
Hamilton Co.
United States
Plainfield Rd. / Sycamore Rd.
(39.21534, -84.39192)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
37.9388
Other (At-Grade)
Single-Lane
2019 ICD estimated from Google Maps linework.
Clarksville, MD
Howard Co.
United States
Highland Rd. / Triadelphia Mill Rd.
(39.21551, -76.97698)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2008
Cagliari, Sardinia
Cagliari
Italy
Via Lungo Saline / Via dell'Idrovora
(39.21551, 9.17084)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Columbia, MD
Howard Co.
United States
Golden Straw Ln. / Davis Rd.
(39.21597, -76.81084)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other (At-Grade)
Single-lane w/ Traversable Central Island
2000 Completed April 28, 2000. Pedestrian ramps into circulatory roadway.
Clarksburg, MD
Montgomery Co.
United States
Broadway Ave. / Little Seneca Pkwy.
(39.21646, -77.28540)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
45.7200
Other (At-Grade)
Multilane (2 Lane, 2x2 max)
2016 Year Completed estimated (2015-2017). Striping added 2019-2021.
Clarksburg, MD
Montgomery Co.
United States
Little Seneca Pkwy. / Cabin Branch Ave.
(39.21654, -77.28310)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
45.7200
Other (At-Grade)
Multilane (2 Lane, 2x2 max)
2016 Year Completed estimated (2016-2017). Striping added 2019-2021.
Kansas City, MO
Platte Co.
United States
NW Union Chapel Rd. / NW Brink-Meyer Rd.
(39.21830, -94.73579)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
28.6842
Other (At-Grade)
Single-Lane
2011 ICD estimated from Google Maps linework.
Chestertown, MD
Kent Co.
United States
MD 20 / MD 291 / (parking lot)
(39.21863, -76.07913)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
47.1899
Other (At-Grade)
Single-Lane
2015 ICD estimated from Google Maps linework.
Kansas City, MO
Platte Co.
United States
MO-45 (Tom Watson Pkwy.) / NW Union Chapel Rd. (MO K)
(39.21999, -94.73524)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
55.5165
Other (At-Grade)
Multilane (2 Lane, unspecified)
2010 ICD estimated from Google Maps linework.
Clarksburg, MD
Montgomery Co.
United States
Cabin Branch Ave. / Skimmer St.
(39.22020, -77.28435)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
45.7200
Other (At-Grade)
Multilane (2 Lane, 2x2 max)
2016 Year Completed estimated (2015-2017). Striping added 2019-2021.
Columbia, MD
Howard Co.
United States
Vantage Point Rd.
(39.22074, -76.85392)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Grass Valley, CA
Nevada Co.
United States
E. Main St. / Idaho-Maryland Rd. / SR 20 WB Ramps
(39.22168, -121.05380)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
39.6240
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
2008 Yield-controlled right-turn bypass lane on north leg with very shallow angle. Left-turn-only lane on east leg.
Kansas City, MO
Clay Co.
United States
Searcy Creek Pkwy. / NE Shoal Creek Pkwy.
(39.22229, -94.50338)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
77.7240
Other (At-Grade)
Multilane (2 Lane, unspecified)
2008
Liberty, MO
Clay Co.
United States
Liberty Dr / Flintrock Rd
(39.22231, -94.46337)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
40.7108
Other (At-Grade)
Single-Lane
2013 ICD estimated from Google Maps linework.
Stephenson, VA
Frederick Co.
United States
Northumberland Dr. / Churndash Way / Patchwork Dr.
(39.22289, -78.09317)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2017 No pavement markings or splitter islands as of October 2017.
Montgomery, OH
Hamilton Co.
United States
US 22 (Montgomery Rd.) / SR 126 (Ronald Reagan Cross Country Hwy.)
(39.22308, -84.35643)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Multilane (3+ Lane)
2021 Previously a grade-separated freeway interchange. https://m.facebook.com/CityofMontgomeryOhio/videos/352303629903240/
Quartu Sant’Elena, Sardinia
Cagliari
Italy
Viale Lungomare del Golfo / Viale Cristoforo Colombo / (parking)
(39.22372, 9.19555)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
1 Driveways
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Ellicott City, MD
Howard Co.
United States
MD 104 (Waterloo Rd.) / MD 100 WB Ramps
(39.22470, -76.80600)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
45.7200
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max)
1999
Kansas City, MO
Platte Co.
United States
NW 72nd St. / N Overland Dr.
(39.22495, -94.64044)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
2020 https://www.kcmo.gov/Home/Components/FacilityDirectory/FacilityDirectory/53/360?npage=2
Kansas City, MO
Platte Co.
United States
NW 72nd St. / NW Waukomis Dr. / N Green Hills Rd.
(39.22505, -94.62750)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
34.2327
Other (At-Grade)
Single-Lane
2012 Streetview car went through just after completion while two approaches were still blocked off. ICD estimated from Google Maps linework.
Kansas City, MO
Platte Co.
United States
MO-45 (Tom Watson Pkwy.) / NW Brink-Myer Rd.
(39.22507, -94.75656)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
45.3352
Other (At-Grade)
Multilane (2 Lane, unspecified)
2017 ICD estimated from Google Maps linework.
Snowmass Village, CO
Pitkin Co.
United States
Brush Creek Rd. / Highline Rd.
(39.22541, -106.92049)
Roundabout
Existing
All-Way Yield
None
3 Approaches
1 Driveways
38.1000
Other (At-Grade)
Single-Lane
2006
Blue Ash, OH
Hamilton Co.
United States
Hunt Rd. / (parking)
(39.22578, -84.39828)
Roundabout
Existing
All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB)
3 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2022 Opened February 2, 2022. https://www.blueash.com/departments/public_works/hunt_plainfield.php
Clarksburg, MD
Montgomery Co.
United States
Snowden Farm Pkwy. / Winding Woods Way
(39.22604, -77.24727)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.7086
Other (At-Grade)
Multilane (2 Lane, unspecified)
2012 Year Completed estimated (2011-2013). ICD estimated from Google Maps linework.
Clarksville, MD
Howard Co.
United States
Running Fence Ln. / Preakness Circle Ln.
(39.22640, -76.94374)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
30.4800
Other (At-Grade)
Single-Lane
2010
Clarksburg, MD
Montgomery Co.
United States
Clarksburg Rd. (MD 121) / Cabin Branch Ave.
(39.22689, -77.29051)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
46.2592
Other (At-Grade)
Multilane (2 Lane, unspecified)
2015 ICD estimated from Google Maps linework.
Blue Ash, OH
Hamilton Co.
United States
Hunt Rd. / Plainfield Rd.
(39.22691, -84.39426)
Roundabout
Existing
All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB)
4 Approaches
0 Driveways
53.0352
Other (At-Grade)
Multilane (2 Lane, 2x2 max)
2023 https://www.wcpo.com/news/local-news/hamilton-county/blue-ash/blue-ash-police-new-roundabout-while-confusing-some-is-reducing-crashes
Clarksburg, MD
Montgomery Co.
United States
Clarksburg Rd. (MD 121) / (outlet mall entrance)
(39.22844, -77.28869)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
49.9588
Other (At-Grade)
Multilane (2 Lane, unspecified)
2015 ICD estimated from Google Maps linework.
Clarksville, MD
Howard Co.
United States
Preakness Circle Ln. / Watkins Bridge Ln.
(39.22880, -76.94308)
Roundabout
Existing
All-Way Yield
None
3 Approaches
1 Driveways
30.4800
Other (At-Grade)
Single-Lane
2010
Clarksville, MD
Howard Co.
United States
Watkins Bridge Ln. / Holly Creek Ln.
(39.22939, -76.94583)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
30.4800
Other (At-Grade)
Single-Lane
2010