9518 Results

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City, State
County
Country
Intersection
(Lat, Lng)
Type
Status
Control Type / Other Control Type Approaches / Driveways Functional Class /
LaneType
Year Completed Comments
Kansas City, MO
Platte Co.
United States
N Congress Ave./MO-152 WB On-ramp/NW 96th Terr.
(39.25531, -94.66793)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
Freeway Ramps
Multilane (2 Lane)
2005
Kansas City, MO
Platte Co.
United States
N Congress Ave./MO-152 EB Off-ramp/N Serene Ave.
(39.25328, -94.66808)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
Freeway Ramps
Multilane (2 Lane)
2005
Kansas City, MO
Platte Co.
United States
N Serene Ave./NW Prairie View Rd.
(39.25268, -94.66677)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
Other
Single-Lane
2005
Catonsville, MD
Baltimore Co.
United States
Hilltop Cir & UMBC Blvd
(39.25184, -76.71437)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Single-Lane
2015
Incline Village, NV
Washoe Co.
United States
SR 28 (Tahoe Blvd.)/SR 431 (Mt Rose Hwy.)
(39.25146, -119.97321)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
Other
Single-Lane
2012 Reduced from two entering lanes (LT only, TH only) on west leg to one lane in 2015-2016. Now single-lane roundabout.
Catonsville, MD
Baltimore Co.
United States
UMBC Blvd & Research Park Dr
(39.24924, -76.71457)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
Single-Lane
2015 Elliptical
Dundalk, MD
Baltimore Co.
United States
Dundalk Ave./Sollers Point Rd.
(39.24534, -76.50786)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Single-Lane
2007
Blue Ash, OH
Hamilton Co.
United States
Plainfield Rd./Parkview Dr.
(39.24335, -84.39561)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
Single-Lane
2018 http://www.blueash.com/departments/public_works/roundabout_safety.php
Blue Ash, OH
Hamilton Co.
United States
Malsbary Rd./Alliance Rd.
(39.23916, -84.38188)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
Single-Lane
2017 http://www.blueash.com/departments/public_works/roundabout_safety.php
Kings Beach, CA
Placer Co.
United States
N Lake Blvd./Bear Ave./Brook Ave./(beach parking)
(39.23681, -120.02465)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Single-Lane
2014
Kings Beach, CA
Placer Co.
United States
N Lake Blvd./Coon St.
(39.23589, -120.02207)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Single-Lane
2014
Grass Valley, CA
Nevada
United States
Sierra College Dr./Litton Dr./Robert Ross Way
(39.23445, -121.05200)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Single-Lane
2003
Grass Valley, CA
Nevada Co.
United States
Olympia Park Cir./(parking lot)
(39.23248, -121.03766)
Roundabout
Existing
All-Way Yield
None
2 Approaches
1 Driveways
Other
Mini-roundabout
2014 All paint, no raised islands. Opened November 2014. Previously, Olympia Park Circle made a gentle 90-degree curve. Traffic entering from stop-controlled driveway had trouble making left turn as they had to proceed 60 feet to reach the safety of centerline without knowing if approaching vehicle on their left was going to enter the driveway or curve left in front of them. Now about 50% of driveway exits cheat across the central island, but it works just fine.
Clarksburg, MD
Montgomery Co.
United States
Little Seneca Pkwy./Meadow Mist Rd.
(39.23154, -77.24309)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Single-Lane
2011
Kansas City, MO
Clay Co.
United States
NE Flintlock Rd/NE 76th St
(39.23094, -94.47007)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
Multilane (2 Lane)
2013
Clarksburg, MD
Montgomery Co.
United States
Little Seneca Pkwy./Snowden Farm Pkwy.
(39.22989, -77.25280)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Multilane (2 Lane)
2012 Year Completed estimated (2011-2013).
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
Other
Multilane (2 Lane)
2012 Year Completed estimated (2011-2013).
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
Other
Multilane (2 Lane)
2017
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
Other
Single-Lane
2012 Streetview car went through just after completion while two approaches were still blocked off.
Ellicott City, MD
Howard
United States
MD 104 (Waterloo Rd.)/MD 100 WB Ramps
(39.22470, -76.80600)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Freeway Ramps
Multilane (2 Lane)
1999
Liberty, MO
Clay Co.
United States
Liberty Dr/Flintrock Rd
(39.22231, -94.46337)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
Single-Lane
2013
Grass Valley, CA
Nevada
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
Freeway Ramps
Multilane (2 Lane)
2008
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
Other
Multilane (2 Lane)
2010
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
Other
Single-Lane
2015
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
Other
Single-Lane
2011
Columbia, MD
Howard Co.
United States
Howard Community College & Harpers Farm Rd
(39.21683, -76.87939)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
Single-Lane
2003 Originally had 4 legs
Columbia, MD
Howard
United States
Golden Straw Ln./Davis Rd.
(39.21597, -76.81084)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Mini-roundabout
2000 Completed April 28, 2000. Functional Class: Collector. Pedestrian ramps into circulatory roadway.
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
Other
Single-Lane
2019
Columbia, MD
Howard
United States
Golden Straw Ln./Longmeadow Ct.
(39.21441, -76.81085)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
Unknown
2000 Previously controlled by one-way stop Functional Class: Local
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
Other
Single-Lane
2018 https://www.linecreekloudmouth.com/blog/street-improvements/
Parkville, MO
Platte
United States
National Dr./Ridge Rd.
(39.21333, -94.70781)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
Other
Single-Lane
Functional Class: Local
Ellicott City, MD
Howard
United States
Snowden River Pkwy./MD 100 WB Ramps
(39.21233, -76.79544)
Roundabout
Existing
All-Way Yield
Metering Signal
3 Approaches
0 Driveways
Freeway Ramps
Single-Lane
1998 Opened November 1998. Metering signal on Snowden River Pkwy approach.
Columbia, MD
Howard
United States
Banneker Rd./Cul-de-sac
(39.21141, -76.87041)
Neighborhood Traffic Circle
Existing
Unknown
Unknown
3 Approaches
0 Driveways
Other
Single-Lane
Functional Class: Local
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
Other
Single-Lane
2007 East leg stubbed for future.
Manhattan, KS
Riley
United States
Gary Ave./Candlewood Dr.
(39.21087, -96.61885)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Single-Lane
1997 Considered to be the First Modern Roundabout in the State of Kansas. Previously controlled by two-way stop Functional Class: Collector
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
Other
Single-Lane
2016 Right-turn bypass lane on south leg.
Parkville, MO
Platte
United States
MO 45 (Tom Watson Pkwy.)/National Dr.
(39.21016, -94.70027)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Single-Lane
2000 Functional Class: Arterial
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
Other
Mini-roundabout
2016
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
Other
Single-Lane
2005
Columbia, MD
Howard
United States
Trotter Rd./South Wind Cir.
(39.20956, -76.91891)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
Single-Lane
1997 Functional Class: Collector. Year Completed estimated (1993-2001).
Ellicott City, MD
Howard
United States
MD 103/MD 100 WB Ramps
(39.20846, -76.78294)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Freeway Ramps
Single-Lane
1998 Opened November 1998.
Ellicott City, MD
Howard
United States
MD 103/MD 100 EB Ramps
(39.20733, -76.78243)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Freeway Ramps
Single-Lane
1998 Opened November 1998.
Clarksville, MD
Howard
United States
Brighton Dam Rd./Ten Oaks Rd.
(39.20491, -76.95455)
Roundabout
Existing
Unknown
Unknown
3 Approaches
0 Driveways
Other
Single-Lane
2008
Manhattan, KS
Riley
United States
Kimball Ave./Grand Mere Pkwy.
(39.20168, -96.63786)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
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
Carson City, NV
Carson City
United States
Arrowhead Dr./I-580 NB Ramps/Imus Rd.
(39.19840, -119.77380)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Freeway Ramps
Single-Lane
2002 NB off-ramp for Carson City Freeway (I-580) and extension of Imus Road. Overpass and roundabouts completed in 2002.
Carson City, NV
Carson City
United States
Arrowhead Dr./I-580 SB Ramp
(39.19810, -119.77540)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Freeway Ramps
Single-Lane
2002 Future SB on-ramp for Carson City Freeway (I-580). Overpass and roundabouts completed in 2002; freeway ramps completed ~2005.
Aspen, CO
Pitkin
United States
SH 82/Maroon Crk./Castle Crk.
(39.19548, -106.84060)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
Other
Multilane (2 Lane)
2000
Hanover, MD
Anne Arundel Co.
United States
Ridge Rd & Corporate Center Dr
(39.19238, -76.70316)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
Single-Lane
2004
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
Other
Multilane (2 Lane)
2018
Columbia, MD
Howard
United States
Cradlerock Way/Homespun Dr.
(39.19095, -76.83787)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other
Single-Lane
2001 Completed May 21, 2001. Previously controlled by one-way stop Functional Class: Collector

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