Roundabouts Database

30016 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
Topeka, KS
Shawnee Co.
United States 		NW 46th St. / Oakley Ave. / Hunters Ridge Dr.
(39.12937, -95.71753) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.6911 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 ICD estimated from Google Maps linework.
San Giovanni Suergiu, Sardinia
Province of South Sardinia
Italy 		SS126 (Località Is Puesceddus) / (unknown)
(39.12944, 8.51024) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Topeka, KS
Shawnee Co.
United States 		NW 46th St. / NW Topeka Blvd.
(39.12957, -95.66378) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.3968 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Open November 2014. ICD estimated from Google Maps linework.
Purcellville, VA
Loudoun Co.
United States 		Pipers Brook Dr. / Greysands Ln.
(39.13006, -77.70211) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		No splitter islands.
Winchester, VA
Frederick Co.
United States 		Papermill Rd. / David Dr.
(39.13019, -78.16537) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2019 Year Completed estimated (2017-2020).
Nice, CA
Lake Co.
United States 		SR 20 / Pyle Rd.
(39.13028, -122.87111) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
40.7641 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Pasadena, MD
Anne Arundel Co.
United States 		Ashberry Ln. / Dewberry Ln. / Dewberry Cir.
(39.13099, -76.59326) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Hanover, MD
Anne Arundel Co.
United States 		Parkside Blvd. / Fredericksburg Rd. / Cornfield Ave.
(39.13140, -76.75125) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2015
Sandy Spring, MD
Montgomery Co.
United States 		Alexander Manor Dr. / Red Tail Ct. / Halex Hill Ct.
(39.13149, -77.01778) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Olney, MD
Montgomery Co.
United States 		Martins Dairy Cir. / Gooseneck Terrace
(39.13176, -77.07439) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Ashton, MD
Montgomery Co.
United States 		Harbour Town Dr. / Grand Cypress Ct.
(39.13205, -77.00407) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Derwood, MD
Montgomery Co.
United States 		Heartwood Dr.
(39.13239, -77.11434) 		Other
Existing 		Unknown
Unknown 		2 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Olney, MD
Montgomery Co.
United States 		Martins Dairy Cir. / Old Baltimore Rd.
(39.13345, -77.07382) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Painted splitter islands.
Winchester, VA
Frederick Co.
United States 		Airport Rd. / Victory Rd.
(39.13417, -78.13571) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
32.4242 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2003-2005). ICD estimated from Google Maps linework.
Laurel, MD
Howard Co.
United States 		Arden Ct. / Waterside Ct. / Scholars Ln.
(39.13418, -76.91140) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on two legs.
Purcellville, VA
Loudoun Co.
United States 		VA 287 / Main Street
(39.13559, -77.69229) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.9082 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 ICD estimated from Google Maps linework.
Derwood, MD
Montgomery Co.
United States 		Coppelia Dr. / Toboggan Ln.
(39.13566, -77.11938) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Bloomington, IN
Monroe Co.
United States 		S Sare Rd. / E Rogers Rd.
(39.13582, -86.49651) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
43.5400 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 ICD estimated from Google Maps linework.
Bloomington, IN
Monroe Co.
United States 		High St. / Winslow Rd. / Rogers Rd.
(39.13631, -86.50819) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.9078 		Other (At-Grade)
Single-Lane 		1999 $497,000 construction cost. ICD estimated from Google Maps linework.
Bloomington, IN
Monroe Co.
United States 		W Tapp Rd. / S Adams St.
(39.13650, -86.55431) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.4967 		Other (At-Grade)
Single-Lane 		2008 No truck apron and wide circulatory roadway. ICD estimated from Google Maps linework.
Bloomington, IN
Monroe Co.
United States 		W Tapp Rd. / I-69 SB Ramps
(39.13653, -86.57389) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.6440 		Freeway Ramps (Grade-Separated)
Single-Lane 		2018 Year Completed estimated (2017-2018). ICD estimated from Google Maps linework.
Savage, MD
Howard Co.
United States 		Washington St. / Foundry St.
(39.13656, -76.82513) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.2880 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2021 Painted splitter islands. Pedestrian crossing on west leg adjacent to circulatory roadway. https://www.howardcountymd.gov/News120121
Bloomington, IN
Monroe Co.
United States 		W Tapp Rd. / I-69 NB Ramps
(39.13683, -86.57233) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.4230 		Freeway Ramps (Grade-Separated)
Single-Lane 		2018 Year Completed estimated (2017-2018). ICD estimated from Google Maps linework.
Basehor, KS
Leavenworth Co.
United States 		(unknown) / (unknown)
(39.13707, -94.93648) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.2756 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 ICD estimated from Google Maps linework.
Laurel, MD
Howard Co.
United States 		Weathered Stone Way / Boulder Ridge Rd. / Stone Lake Dr.
(39.13774, -76.84066) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Basehor, KS
Leavenworth Co.
United States 		(unknown) / Parking Lot
(39.13799, -94.93220) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.6434 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Laurel, MD
Howard Co.
United States 		Boulder Ridge Rd. / Polished Pebble Way
(39.13864, -76.84358) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Waterford, VA
Loudoun Co.
United States 		Charles Town Pike / E Colonial Hwy. / Dry Mill Pkwy. / SR 7 EB Ramps
(39.14003, -77.61273) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9600 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2015 Combines two stop-controlled intersections. Year Completed estimated (2014-2016).
Jessup, MD
Anne Arundel Co.
United States 		National Business Pkwy. / Brock Bridge Rd.
(39.14025, -76.76395) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.4636 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 ICD estimated from Google Maps linework.
Sandy Spring, MD
Montgomery Co.
United States 		Friends House Rd. / Quaker Ln. / (parking)
(39.14071, -77.03036) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Paeonian Springs, VA
Loudoun Co.
United States 		Charles Town Pike / SR 7 WB Ramps
(39.14190, -77.61205) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
53.3400 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2015 Year Completed estimated (2014-2016).
Severn, MD
Anne Arundel Co.
United States 		Milestone Pkwy. / (unknown)
(39.14341, -76.75076) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 Year Completed estimated (2011-2014).
Scaggsville, MD
Howard Co.
United States 		Ice Crystal Dr. / Birchtree Ln.
(39.14355, -76.89912) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.7147 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Glen Burnie, MD
Anne Arundel Co.
United States 		Hancock Ln. / Mayflower Cir.
(39.14357, -76.62097) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Columbus, IN
Bartholomew Co.
United States 		US 31 / E CR 400 S
(39.14378, -85.84092) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.1249 		Other (At-Grade)
Single-Lane 		2016 https://www.in.gov/indot/3445.htm. ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States 		MD 216 / US 29 NB Ramps / Ice Crystal Dr.
(39.14476, -76.89799) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.7234 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2001 Series of 4 roundabouts. ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States 		MD 216 / US 29 SB Ramps
(39.14562, -76.90418) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.7228 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2001 Series of 4 roundabouts. ICD estimated from Google Maps linework.
Severn, MD
Anne Arundel Co.
United States 		Milestone Pkwy. / Clubhouse Dr.
(39.14600, -76.74775) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2012 Year Completed estimated (2011-2014).
Gaithersburg, MD
Montgomery Co.
United States 		Victory Farm Dr. / Girard St.
(39.14648, -77.18493) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.9348 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Carbonia, Sardinia
Province of South Sardinia
Italy 		SS126 / Via Michelangelo
(39.14701, 8.51163) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Scaggsville, MD
Howard Co.
United States 		MD 216 / Maple Lawn Blvd.
(39.14710, -76.90723) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
40.7543 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2005 Series of 4 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Glen Burnie, MD
Anne Arundel Co.
United States 		George Clausse Blvd. / (parking access)
(39.14768, -76.64935) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.3442 		Other (At-Grade)
Single-Lane 		2008 RT lanes on eastbound and northbound approaches. Part of shopping center. ICD estimated from Google Maps linework.
Fulton, MD
Howard Co.
United States 		S Maple Lawn Blvd. / Eugene Ave. / Charles Way
(39.14787, -76.91560) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2017
Scaggsville, MD
Howard Co.
United States 		MD 216 / Westside Blvd.
(39.14796, -76.90977) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.6801 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 Series of 4 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Olney, MD
Montgomery Co.
United States 		Old Baltimore Rd. / Bishops Castle Dr.
(39.14878, -77.04958) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Unknown
Single-Lane 		2019 Painted splitter islands on major street; no splitter islands on side street.
Dover, DE
Kent Co.
United States 		Cannon Mill Dr. / E Sheldrake Cir. / W Sheldrake Cir.
(39.14882, -75.56602) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2006 No pavement markings. Year Completed estimated (2005-2006).
Gaithersburg, MD
Montgomery Co.
United States 		Perry Pkwy. / (parking)
(39.14899, -77.21048) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2004 Year Completed estimated (2002-2005).
Scaggsville, MD
Howard Co.
United States 		Westside Blvd. / (parking lot)
(39.14952, -76.90856) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.4909 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Darnestown, MD
Montgomery Co.
United States 		Schaeffer Rd. / Germantown Park Dr. / Central Park Cir.
(39.15003, -77.30152) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		2004 Right-turn-only lane on northeast leg. Year Completed estimated (2002-2005).
Bloomington, IN
Monroe Co.
United States 		Moores Pike / Winfield Rd.
(39.15027, -86.50103) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.3430 		Other (At-Grade)
Single-Lane 		2005 Completed August 2005. http://bloomington.in.gov/egov/docs/1124562196872.htm ICD estimated from Google Maps linework.
Severn, MD
Anne Arundel Co.
United States 		Milestone Pkwy. / Split Creek Ln. / (parking)
(39.15042, -76.74668) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007
Dover, DE
Kent Co.
United States 		Towne Centre Dr. / Lloyd St. / Wemyss Rd.
(39.15134, -75.53817) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.4901 		Other (At-Grade)
Single-Lane 		2008 Year Completed estimated (2007-2009). Splitter islands added 2014-2015. ICD estimated from Google Maps linework.
Hanover, MD
Anne Arundel Co.
United States 		Watts Ave. / Clark Rd.
(39.15138, -76.72638) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
25.9330 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Union Township, OH
Clermont Co.
United States 		Miami View Trl. / Miami Hills Dr. / Terrace Ridge Dr.
(39.15189, -84.28027) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.2012 		Other (At-Grade)
Single-Lane 		No splitter islands. ICD estimated from Google Maps linework.
North Avondale, OH
Hamilton Co.
United States 		Dana Ave. / Clinton Springs Ave.
(39.15192, -84.48330) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
25.9328 		Other (At-Grade)
Single-Lane 		2015 This roundabout is mentioned in this local newspaper article (https://www.cincinnati.com/story/news/politics/2017/09/12/northside-you-ready-roundabout/646761001/) ICD estimated from Google Maps linework.
Manhattan, KS
Riley Co.
United States 		S Scenic Dr / K-18 EB Ramps
(39.15310, -96.64301) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
57.4217 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2013 Raindrop shape. Year Completed estimated (2012-2013). ICD estimated from Google Maps linework.
Kansas City, KS
Wyandotte Co.
United States 		Whispering Ln. / Sortop Dr.
(39.15320, -94.83506) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2005 Elliptical shape. ICD = 120 ft x 100 ft.
Gaithersburg, MD
Montgomery Co.
United States 		Parkview Ave. / Uptown St.
(39.15334, -77.22619) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2012 Right-turn-only lane on northwest leg. Year Completed estimated (2011-2012).
Carson City, NV
Carson City
United States 		S Carson St. / S Stewart St.
(39.15348, -119.76692) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
47.2440 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2020 https://aroundcarson.com/2020/10/10/carson_street_construction-2/
Fruita, CO
Mesa Co.
United States 		CO-340 / Raptor Rd.
(39.15351, -108.73813) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
47.2337 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States 		Maple Lawn Blvd. / Tawes St.
(39.15364, -76.90125) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.2675 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 ICD estimated from Google Maps linework.
Dover, DE
Kent Co.
United States 		Allen Ct. / Garrett House Cir.
(39.15377, -75.53746) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.2674 		Other (At-Grade)
Single-Lane 		2014 Year Completed estimated (2011-2014). ICD estimated from Google Maps linework.
Fruita, CO
Mesa Co.
United States 		CO-340 / I-70 EB Ramps / I-70 Frontage Rd.
(39.15470, -108.73769) 		Roundabout
Existing 		All-Way Yield
Active Pedestrian Warning (flashing yellow) 		4 Approaches
0 Driveways
40.7499 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2009 ICD estimated from Google Maps linework.
Germantown, MD
Montgomery Co.
United States 		Wonderland Way / Chalet Dr.
(39.15516, -77.27464) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Dover, DE
Kent Co.
United States 		Mifflin Rd. / Woodmill Dr.
(39.15527, -75.55831) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2005 Painted splitter islands.
Manhattan, KS
Riley Co.
United States 		S Scenic Dr. / Skyway Dr. / K-18 WB Ramps
(39.15547, -96.64423) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
74.0900 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2013 Year Completed estimated (2012-2013)/ ICD estimated from Google Maps linework.
Hanover, MD
Anne Arundel Co.
United States 		Arundel Mills Blvd. / MD 295 NB Ramps
(39.15573, -76.74459) 		Roundabout
Removed 		All-Way Yield
None 		3 Approaches
0 Driveways
26.8575 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2002 ICD estimated from Google Maps linework. Replaced with DDI
Hanover, MD
Anne Arundel Co.
United States 		Arundel Mills Blvd. / MD 295 SB Ramps
(39.15677, -76.74617) 		Roundabout
Removed 		All-Way Yield
None 		2 Approaches
0 Driveways
66.6796 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2002 ICD estimated from Google Maps linework. Replaced with DDI.
Olney, MD
Montgomery Co.
United States 		Wickham Rd. / Broom Dr.
(39.15708, -77.09362) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Riverside, MO
Platte Co.
United States 		Horizons Pkwy. / Argosy Casino Pkwy.
(39.15795, -94.64060) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
50.0090 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2009 ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States 		Maple Lawn Blvd. / Iager Blvd.
(39.15816, -76.90440) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.3392 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2005 ICD estimated from Google Maps linework.
Milford, OH
Clermont Co.
United States 		Chamber Dr. / Beechwood Rd.
(39.15816, -84.27320) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
16.6696 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2016 Painted splitter islands. ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States 		Hopkins-Gorman Rd. / US 29 NB Ramps
(39.15846, -76.88660) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
59.2695 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 ICD estimated from Google Maps linework.
Germantown, MD
Montgomery Co.
United States 		Ashleigh Greene Rd. / Cornflower Rd.
(39.15879, -77.30324) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Fruita, CO
Mesa Co.
United States 		Aspen Ave. / Mesa St. (Park Square)
(39.15884, -108.73360) 		Other
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
77.7908 		Other (At-Grade)
Unknown 		Completed 1940? ICD estimated from Google Maps linework.
Jessup, MD
Anne Arundel Co.
United States 		Montevideo Rd. / Forest Ave. / Wigley Ave.
(39.15966, -76.75916) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2006-2007).
Germantown, MD
Montgomery Co.
United States 		Ashleigh Greene Rd. / Ashmeade Rd.
(39.16013, -77.29900) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Olney, MD
Montgomery Co.
United States 		Brightwood Rd. / Winding Oak Dr. / Weston Pl.
(39.16065, -77.09120) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Olney, MD
Montgomery Co.
United States 		Wickham Rd. / Olney Mill Rd. / Dunsford Dr.
(39.16071, -77.09596) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on three legs.
Carson City, NV
Carson City Co.
United States 		E 5th St. / Fairview Dr.
(39.16090, -119.72790) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		1999
Boyds, MD
Montgomery Co.
United States 		Crazy Quilt Ct.
(39.16123, -77.30454) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane
Germantown, MD
Montgomery Co.
United States 		Crestmount Rd. / Kings Crossing Rd.
(39.16175, -77.30841) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Berryville, VA
Clarke Co.
United States 		SR 636 (Westwood Rd) / SR 7 Business (W Main St)
(39.16190, -77.99695) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
31.4854 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Germantown, MD
Montgomery Co.
United States 		Kings Crossing Blvd. / Cornflower Rd.
(39.16222, -77.30397) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Germantown, MD
Montgomery Co.
United States 		Kings Crossing Blvd. / Ashmeade Rd.
(39.16235, -77.29971) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		Painted splitter islands. Pedestrian crossings next to circulatory roadway.
Riverside, MO
Platte Co.
United States 		Argosy Casino Pkwy. / US 69 NB Ramps / NW Tremont Trafficway
(39.16237, -94.62502) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
40.7455 		Freeway Ramps (Grade-Separated)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Dover, DE
Kent Co.
United States 		Independence Blvd. / Colony Dr. / Green Blade Dr.
(39.16260, -75.55291) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.2247 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2017 https://delawarestatenews.net/news/roundabout-realignment-way-dovers-independence-boulevard/ ICD estimated from Google Maps linework.
Tahoe City, CA
Placer Co.
United States 		SR 89 / W Lake Blvd.
(39.16291, -120.14444) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.9671 		Other (At-Grade)
Single-Lane 		2019 https://flh.fhwa.dot.gov/projects/ca/truckee/ ICD estimated from Google Maps linework.
Laddonia, MO
Audrain Co.
United States 		US 54 / MO 19 / Hwy BB
(39.16323, -91.64907) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Single-Lane 		2019 https://www.modot.org/roundabouts-us-route-54
Upper Lake, CA
Lake Co.
United States 		SR 20 / SR 29
(39.16333, -122.92095) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
36.1148 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
Tahoe City, CA
Placer Co.
United States 		SR 89 / W River Rd.
(39.16425, -120.14919) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.2623 		Other (At-Grade)
Single-Lane 		2019 https://flh.fhwa.dot.gov/projects/ca/truckee/ ICD estimated from Google Maps linework.
Germantown, MD
Montgomery Co.
United States 		Summer Oak Dr. / Summer Oak Ct.
(39.16467, -77.24384) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands on two legs.
Kansas City, MO
Clay Co.
United States 		NW Briarcliff Pkwy. / MO-9 SB Ramps / NW Tullison Rd. / NW 38th St.
(39.16472, -94.59926) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
85.3440 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2012
Kansas City, MO
Clay Co.
United States 		NW Briarcliff Pkwy. / MO-9 NB Ramps / NW Platte Rd.
(39.16606, -94.59842) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
79.2480 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2012 Right-turn bypass lanes on north and east quadrants.
Germantown, MD
Montgomery Co.
United States 		Crossview Rd. / Autumn Crest Rd.
(39.16717, -77.30075) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter islands.
Kansas City, MO
Clay Co.
United States 		Parvin Rd. / Prather Rd. (MO Hwy 1)
(39.16738, -94.55294) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2020 https://www.facebook.com/MoDOT.KansasCity/posts/project-update-the-parvin-rd-and-prather-rd-roundabout-project-in-clay-county-is/10158316265513515/
Yuba City, CA
Sutter Co.
United States 		Stabler Ln. / Butte Vista Ln.
(39.16747, -121.64400) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
46.2983 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Cleves, OH
Hamilton Co.
United States 		Cooper Ave. / (high school parking)
(39.16904, -84.75329) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2016 Painted splitter island on south leg.
Yuba City, CA
Sutter Co.
United States 		Butte Vista Ln. / Tres Picos Ln.
(39.16908, -121.64820) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.8524 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Pasadena, MD
Anne Arundel Co.
United States 		Creekside Village Blvd. / Oak Creek Dr.
(39.16938, -76.57165) 		Other
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		No splitter island on southeast leg.