|
City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways / ICD (m) |
Functional Class / LaneType |
Year Completed | Comments |
|---|---|---|---|---|---|---|---|
|
Hawthorn Woods,
IL Lake Co. United States |
W Schwerman Rd. / Tournament Dr. (42.24819, -88.07133) |
Other Existing |
All-Way Stop Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
|
South Dixie,
FL Broward Co. United States |
(unnamed) (26.21489, -80.13347) |
Other Existing |
All-Way Stop Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
|
Deerfield Beach,
FL Broward Co. United States |
Cypress Lake Blvd. / Cypress Ln. / Cypress Park Way (26.28927, -80.13446) |
Other Existing |
All-Way Stop Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
|
Deerfield Beach,
FL Broward Co. United States |
Grantham Cir. (26.30864, -80.13418) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
|
Somerville,
MA Middlesex Co. United States |
Powder House Square (Powder House Blvd. / Broadway / College Ave. / Werner St.) (42.40114, -71.11677) |
Signalized Roundabout/Circle Existing |
All-Way Stop None |
6 Approaches 0 Driveways 70.1040 |
Other (At-Grade) Multilane (2 Lane) |
Center Island accessible for peds (including street furniture on the center island). | |
|
Everett,
MA Middlesex Co. United States |
Revere Beach Pkwy. (Rte 16) / Mystic View Rd. / Santilli Hwy (42.40238, -71.06892) |
Signalized Roundabout/Circle Existing |
Signal None |
5 Approaches 0 Driveways 155.4480 |
Other (At-Grade) Multilane (3+ Lane) |
Revere Beach Pkwy extends through the rotary. ICD 560 ft x 460 ft. | |
|
Medford,
MA Middlesex Co. United States |
Winthrop St. / High St. / Rural Ave. (42.42129, -71.11800) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 32.0040 |
Other (At-Grade) Single-Lane |
2019 | Painted splitter islands. Right-turn-only lanes on southwest and south legs. Converted from traffic circle in 2018-2019. |
|
Kings Point,
FL Palm Beach Co. United States |
Andalucia Ln. (26.43411, -80.18069) |
Traffic Calming Circle Existing |
Uncontrolled Unknown |
2 Approaches 2 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
|
Menominee Falls,
WI Waukesha Co. United States |
Megal Ct. / (unknown) (43.18504, -88.10064) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.7200 |
Other (At-Grade) Single-Lane |
2015 | Fourth leg stubbed. Year Completed estimated (2015-2016). |
|
Nicollet,
MN Nicollet Co. United States |
461st Ave. / US 14 WB Ramps (44.26645, -94.19045) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Freeway Ramps (Grade-Separated) Single-Lane |
2017 | Year Completed estimated (2016-2018). |
|
Nicollet,
MN Nicollet Co. United States |
461st Ave. / US 14 EB Ramps (44.26470, -94.19047) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Freeway Ramps (Grade-Separated) Single-Lane |
2017 | Teardrop shape. Year Completed estimated (2016-2018). |
|
New Ulm,
MN Brown Co. United States |
US 14 / Front St. Connector (44.32395, -94.45755) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2018 | Year Completed estimated (2015-2020). Replaced ramps of PARCLO AB interchange. https://www.isginc.com/portfolio/us-highway-14-roundabout |
|
Saint-Anselme,
QC Bellechasse Regional County Municipality Canada |
Chemin Saint-Jacques / Chemin Sainte-Anne (46.62899, -70.98278) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.0000 |
Other (At-Grade) Single-Lane |
2017 | Year Completed estimated (2016-2017). |
|
West Jordan,
UT Salt Lake Co. United States |
W 7800 S / New Sycamore Dr. (40.60940, -112.05842) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.7200 |
Other (At-Grade) Single-Lane |
2019 | Yield-controlled right-turn bypass lane on east leg. Fourth leg stubbed. Year Completed estimated (2018-2019). |
|
Brighton City,
UT Salt Lake Co. United States |
Big Cottonwood Canyon Rd. / Brighton Loop (40.60362, -111.58264) |
Other Existing |
All-Way Yield None |
2 Approaches 0 Driveways 27.4317 |
Other (At-Grade) Single-Lane |
2018 | Entry roundabout to ski resort at end of County Road. No splitter islands on two-way leg or geometric deflection of two entries. Road splits into one-way couplet; circle facilitates U-turns. |
|
Summit Park,
UT Summit Co. United States |
Gorgoza Pines Rd. / (parking) (40.75044, -111.57153) |
Other Existing |
All-Way Yield None |
4 Approaches 0 Driveways 35.0520 |
Other (At-Grade) Single-Lane |
2003 | No splitter islands. Year Completed estimated (2002-2004). |
|
South Snyderville Basin,
UT Summit Co. United States |
Canyons Resort Dr. / Frostwood Dr. (40.68753, -111.54847) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 42.6720 |
Other (At-Grade) Single-Lane |
2014 | Right-turn add-lane bypass lane on southeast leg. Year Completed estimated (2013-2015). |
|
Provo,
UT Utah Co. United States |
E Campus Dr. / E 1100 N (40.24846, -111.64583) |
Other Existing |
All-Way Yield None |
2 Approaches 0 Driveways 42.6720 |
Other (At-Grade) Single-Lane |
2014 | Parking along circulatory roadway. Year Completed estimated (2013-2015). |
|
Provoo,
UT Utah Co. United States |
N Campus Dr. / (parking) (40.25235, -111.64932) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 35.0520 |
Other (At-Grade) Single-Lane |
2015 | On college campus of Brigham Young University. |
|
Salt Lake City,
UT Salt Lake Co. United States |
Campus Center Dr. / (parking) (40.76148, -111.84247) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 25.9080 |
Other (At-Grade) Single-Lane |
2018 | On college campus of University of Utah. Year Completed estimated (2017-2018). |
|
Central City,
AZ Maricopa Co. United States |
E Madison St. / (parking) (33.44625, -111.98911) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Single-Lane |
2011 | Accommodates WB-67 truck deliveries to the Phoenix Sky Train terminal. Part of Phoenix Sky Harbor off-site parking facility. Year Completed estimated (2011-2012). |
|
Mesa,
AZ Maricopa Co. United States |
Bass Pro Dr. / W Brown Rd. (33.43621, -111.86050) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Single-Lane |
2007 | City of Mesa Bus Route turnaround and accommodates WB-67 Truck deliveries for a Super WalMart. |
|
Sierra Vista,
AZ Cochise Co. United States |
E Golden Acres Dr. / Canyon de Flores (31.50212, -110.25097) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 60.9600 |
Other (At-Grade) Multilane (2 Lane) |
2014 | ADOT truck turnaround. Year Completed estimated (2013-2015). |
|
Ak-Chin Village,
AZ Pinal Co. United States |
N Ban Ln. / (unknown) (33.02543, -112.04956) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 1 Driveways 48.7680 |
Other (At-Grade) Multilane (2 Lane) |
2018 | Yield-controlled right-turn bypass lane on south leg. First of several planned roundabouts on the Ak-Chin Indian Community casino expansion. |
|
Peoria,
AZ Maricopa Co. United States |
83rd Ave. / W Cinnabar Ave. (33.57554, -112.23763) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2007 | City of Peoria's first roundabout and serves their municipal center including police station. Year Completed estimated (2007-2009). |
|
Peoria,
AZ Maricopa Co. United States |
W Whitney Dr. / (unknown) (33.57499, -112.23509) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2007 | Year Completed estimated (2007-2009). |
|
Red Deer,
AB Division 8 Canada |
54 Ave. / 55th St. (52.27375, -113.81759) |
Roundabout Existing |
All-Way Yield None |
2 Approaches 2 Driveways 37.0000 |
Other (At-Grade) Single-Lane |
2013 | Year Completed estimated (2012-2013). |
|
Venice,
FL Sarasota Co. United States |
Jacaranda Blvd. / Venice Ave. (27.09950, -82.38444) |
Roundabout Existing |
All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) |
4 Approaches 0 Driveways 79.2480 |
Other (At-Grade) Multilane (2 Lane) |
2011 | Modified 2017 to change lane configuration and address crash issues. 21442 |
|
Richfield,
MN Hennepin Co. United States |
66th St. / Portland Ave. (44.88355, -93.26782) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.7680 |
Other (At-Grade) Multilane (2 Lane) |
2009 | Opened to traffic late fall 2008, finished 2009. Changes to signing and striping made August 2011. 21442 |
|
Scottsdale,
AZ Maricopa Co. United States |
N. 74th St. / E. Sweetwater Ave. (33.60395, -111.92155) |
Traffic Calming Circle Existing |
All-Way Yield None |
0 Approaches 0 Driveways 16.7640 |
Other (At-Grade) Unknown |
2003 | Modified by City in 2005 to improve operation as roundabout. 21442 |
|
Buffalo,
NY Erie Co. United States |
Gates Circle (Delaware Ave. / Lafayette Ave.) (42.92054, -78.86776) |
Other Existing |
Unknown Unknown |
5 Approaches 0 Driveways 66.4699 |
Other (At-Grade) Unknown |
2002 | Modified in 2002 to incorporate roundabout principles. ICD estimated from Google Maps linework. 21442 |
|
Marysville,
WA Snohomish Co. United States |
34th Ave. NE-Quil Ceda Blvd. / Tulalip Casino entrance (48.08801, -122.18560) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 74.9927 |
Other (At-Grade) Single-Lane |
2001 | Opened October 2001 as multilane roundabout. Modified April 2014 to reduce to single-lane roundabout with right-turn-only lanes. ICD estimated from Google Maps linework. 21442 |
|
La Quinta,
CA Riverside Co. United States |
Avenida Montezuma / Avenida Navarro (33.67616, -116.30460) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.9560 |
Other (At-Grade) Single-Lane |
2007 | Modified from former geometrics to conform to roundabout. 21442 |
|
Apex,
NC Wake Co. United States |
Blackburn Rd. / Orchard Villas Ave. (35.74781, -78.86505) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 27.1406 |
Other (At-Grade) Single-Lane |
2008 | Modified in 2012 to add splitter islands. ICD estimated from Google Maps linework. 21442 |
|
St Catharines,
ON Niagara Canada |
Suzanne Rochon-Burnett Circle (University Rd. E / Greenhouse Ln. / Ray Woodfield Dr. / John McDonald St.) (43.12007, -79.24428) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.0000 |
Other (At-Grade) Single-Lane |
2000 | Initial completion estimated (before 2003). Modified approximately 2003-2007 to realign University Road leg. ICD estimated from Google Maps linework. 21442 |
|
Lehi,
UT Utah Co. United States |
E 3200 N / Center St. (40.42800, -111.84974) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 41.1480 |
Other (At-Grade) Single-Lane |
2007 | Roundabout modified in 2016-2017 to reduce width of truck apron and increase circulatory roadway width. 21442 |
|
Flemington,
NJ Hunterdon Co. United States |
Rte 12 / Main St. / Reaville Ave. (40.50183, -74.85851) |
Rotary Existing |
All-Way Yield None |
5 Approaches 6 Driveways 92.9640 |
Other (At-Grade) Multilane (2 Lane) |
2010 | Minor movements need to change lanes for some movements. Modified 2009-2010 to have yield on entry with original rotary geometry. ICD = 350 ft x 265 ft. 21442 |
|
Williamsburg,
VA Williamsburg City Co. United States |
Battery Blvd. / Commonwealth Ave. (37.25257, -76.66771) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 47.2440 |
Other (At-Grade) Multilane (2 Lane) |
2012 | Through arrows only on northeast entry even though lanes marked within roundabout as LT, LT-TH. Entry appears to have been modified by removing left-turn pavement marking arrows on entry and replacing with through arrows. No lane use signs. Year Completed estimated (2011-2014). 21442 |
|
Vineyard,
UT Utah Co. United States |
Main St. / Center St. (40.29700, -111.75369) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.7680 |
Other (At-Grade) Multilane (2 Lane) |
2008 | Year Completed estimated (2006-2009). Marked initially with concentric circulatory lane lines and no lane use markings on north and east legs. Lane use markings added 2013-2015. Converted from two-lane roundabout to single-lane roundabout in 2016-2017 using pavement markings with right-turn-only lanes on north and east legs. 21442 |
|
Topeka,
KS Shawnee Co. United States |
SW 29th St. / Urish Rd. (39.01446, -95.78102) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.7680 |
Other (At-Grade) Single-Lane |
2001 | Completed July 2001 as single-lane roundabout. Retail shopping center on SW corner. Converted to partial double-lane roundabout 2010. 21442 |
|
Idaho Falls,
ID Bonneville Co. United States |
E Lincoln Rd. / E Hitt Rd. (N 25th) (43.51143, -111.98410) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Multilane (2 Lane) |
2001 | Year Completed estimated (1992-2003). Converted from single-lane to multilane in 2018. ICD estimated from Google Maps linework. 21442 |
|
Urbana,
OH Champaign Co. United States |
US 36 / US 68 / SR 29 / SR 54 / SR 55 (Main St. / Miami St. / Scioto St.) (40.10807, -83.75250) |
Roundabout Existing |
All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) |
4 Approaches 0 Driveways 33.5280 |
Other (At-Grade) Single-Lane |
2009 | Original traffic circle was initially converted to roundabout in 2009 using signing/striping only, including striped splitter islands. In 2019, the conversion was completed, including concrete splitter islands, concrete truck apron, concrete pedestrian refuge islands, and RRFBs (rectangular rapid flashing beacons) at the crosswalks. 21442 |
|
Hilliard,
OH Franklin Co. United States |
Main St. / Scioto Darby Rd. (40.02892, -83.16108) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 54.8640 |
Other (At-Grade) Multilane (2 Lane) |
2010 | Modified 2011-2014 to change lane configuration. 21442 |
|
Hilliard,
OH Franklin Co. United States |
Main St. / Cemetary Rd. (40.02993, -83.16123) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.7680 |
Other (At-Grade) Multilane (2 Lane) |
2010 | Circulatory roadway striping modified 2014-2015. |
|
Revere,
MA Suffolk Co. United States |
Copeland Circle - US 1 Ramps / MA 60 (Squire Rd.) (42.43008, -71.01710) |
Rotary Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
Retrofitted (November 2018) with multi-lane approaches/departures on the Route 1 ramps and roundabout style pavement markings and signs within the circulating roadway. 21442 | |
|
Bourne,
MA Barnstable Co. United States |
MacArthur Blvd. (Rte 28) / Connery Ave. / Sandwich Rd. (Rte 28A) (41.68534, -70.59144) |
Rotary Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Multilane (2 Lane) |
New lane configuration/striping in 2017, aka Otis Rotary. 21442 | |
|
Avon,
CO Eagle Co. United States |
Avon Rd. / Benchmark Rd. (39.63425, -106.52220) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.7200 |
Other (At-Grade) Multilane (2 Lane) |
1997 | Originally had raindrop shape with locked gate access across south leg for emergency vehicles only. Redesigned and reopened May 2007 with full access. 21442 |
|
Tulsa,
OK Tulsa Co. United States |
E. Admiral Pl. / Mingo Rd. (36.16057, -95.86876) |
Rotary Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 114.7468 |
Other (At-Grade) Single-Lane |
Functional Class: Arterial ICD estimated from Google Maps linework. | |
|
Dublin,
OH Franklin Co. United States |
SR 161 (W Dublin Granville Rd.-E Bridge St.) / Riverside Dr. (US 33-SR 257) (40.09964, -83.10936) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 70.1040 |
Other (At-Grade) Multilane (3+ Lane) |
2016 | Modified 2018 to reduce lane configuration. https://www.thisweeknews.com/news/20191022/dublin-officials-say-161-riverside-roundabout-fixes-lessen-crashes . 21442 |
|
Las Vegas,
NV Clark Co. United States |
Mesa Park Dr. / W Russell Rd. (36.08370, -115.32039) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 47.2440 |
Other (At-Grade) Single-Lane |
2007 | Year Completed estimated (2007-2008). Fourth leg added 2014-2015. 21442 |
|
London,
ON Middlesex Canada |
Callingham Dr. / Meadowlands Way (43.03489, -81.29534) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 35.0000 |
Other (At-Grade) Single-Lane |
2012 | Year Completed estimated (2010-2013). Splitter islands added 2016-2019. (streetview) 21442 |
|
Las Vegas,
NV Clark Co. United States |
W Russell Rd. / Cascante Rd. / (school access) (36.08448, -115.31799) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 50.2920 |
Other (At-Grade) Single-Lane |
2008 | Two legs completed 2007-2008. Third leg added 2011-2012. School access added 2012-2014. 21442 |
|
St Johns,
FL St. Johns Co. United States |
Durbin Creek Blvd. / Davis Pond Blvd. (30.11100, -81.61024) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.1935 |
Other (At-Grade) Single-Lane |
2017 | Originally opened as multilane roundabout (1999-2002) with concentric circulatory roadway striping. Converted to single-lane roundabout 2016-2017. ICD estimated from Google Maps linework. 21442 |
|
Scottsdale,
AZ Maricopa Co. United States |
Princess Blvd. / Princess Dr. (33.64804, -111.91795) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 64.0077 |
Other (At-Grade) Multilane (2 Lane) |
2007 | Completed 1986. Reconfigured in 2007? 21442 |
|
Savannah,
GA Chatham Co. United States |
Williams Rd. / (unknown) (32.13212, -81.14829) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.5464 |
Other (At-Grade) Multilane (2 Lane) |
2015 | Temporary roundabout on Port of Savannah property. Reconfigured in 2018 into oval-shaped roundabout. ICD estimated from Google Maps linework. 21442 |
|
Slidell,
LA St. Tammany Par. United States |
Levis Ln. / (parking lots) (east) (30.26632, -89.75977) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.9457 |
Other (At-Grade) Single-Lane |
2014 | Three legs completed 2013-2014; fourth leg added 2015-2016. ICD estimated from Google Maps linework. 21442 |
|
Natick,
MA Middlesex Co. United States |
Natick Mall Rd. / Nouvelle Way / (parking lots/garage) (42.30232, -71.38495) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 35.3330 |
Other (At-Grade) Multilane (2 Lane) |
2007 | Fifth leg added 2017-2018. ICD estimated from Google Maps linework. 21442 |
|
Slidell,
LA St. Tammany Par. United States |
Town Center Pkwy. / Levis Ln. (30.26543, -89.76313) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 47.4507 |
Other (At-Grade) Multilane (2 Lane) |
2013 | Initial construction completed 2011-2013; third leg added 2015-2016. ICD estimated from Google Maps linework. 21442 |
|
Grays,
England Essex United Kingdom |
A1306 / B186 (51.48926, 0.27230) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 89.2395 |
Other (At-Grade) Single-Lane |
Modified with striped spirals to be single-lane. ICD estimated from Google Maps linework. 21442 | |
|
Eersel,
North Brabant Eersel Netherlands |
N397 / Molenweg / Eindhovenseweg (51.36687, 5.32618) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 70.0917 |
Other (At-Grade) Multilane (2 Lane) |
Retrofitted into a turboroundabout. ICD estimated from Google Maps linework. 21442 | |
|
Hope Mills,
NC Cumberland Co. United States |
Archer Rd. / Castleton Dr. / Masters Dr. (34.96856, -78.94971) |
Other Existing |
All-Way Yield Unknown |
4 Approaches 2 Driveways 35.2334 |
Other (At-Grade) Single-Lane |
Had two approaches by 1993 and four by 1999. No splitter islands. ICD estimated from Google Maps linework. 21442 | |
|
Medford,
OR Jackson Co. United States |
N Cottage St. / Ohio St. (42.34260, -122.88285) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.1932 |
Other (At-Grade) Single-Lane |
2012 | Year Completed estimated (2011-2012). West leg religned to southwest 2016-2017. ICD estimated from Google Maps linework. 21442 |
|
Las Vegas (Summerlin),
NV Clark Co. United States |
Town Center Dr. / Hualapai Way (36.17850, -115.31770) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 70.1040 |
Other (At-Grade) Multilane (2 Lane) |
1990 | Completed March 1990. Modified 2003 to reduce from three-lane entries to two-lane entries with add-lane right-turn bypasses on all legs. ICD estimated from Google Maps linework. 21442 |
|
Las Vegas (Summerlin),
NV Clark Co. United States |
Town Center Dr. / Canyon Run Dr. / Banburry Cross Dr. (36.18080, -115.31370) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 54.8640 |
Other (At-Grade) Multilane (2 Lane) |
1995 | Completed March 1995. Modified 2003 to reduce from three-lane entries to two-lane entries with add-lane right-turn bypasses on all legs. 21442 |
|
Las Vegas (Summerlin),
NV Clark Co. United States |
Town Center Dr. / Village Center Cir. / Library Hills Dr. (36.18960, -115.30360) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 91.4400 |
Other (At-Grade) Multilane (2 Lane) |
1990 | Completed March 1990. Modified 2010 to reduce lane configuration. 21442 |
|
Richmond,
TX Fort Bend Co. United States |
Harvest Home Dr. / Harvest Corner Dr. / Harvest Garden Blvd. (29.64292, -95.72240) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 64.0080 |
Other (At-Grade) Single-Lane |
2015 | Originally had striped-out outer sections of circulatory roadway. In 2017 striping was changed to instead stripe out inner portion of circulatory roadway for single-lane sections of circulatory roadway with spiralling from two-lane section. 21442 |
|
Narragansett,
RI Washington Co. United States |
Succotash Rd. / Beach Row (41.37662, -71.51541) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 24.1972 |
Other (At-Grade) Single-Lane |
2011 | Rotary retrofitted (signage and striping). No geometric changes to add deflection. ICD estimated from Google Maps linework. 21442 |
|
Towson,
MD Baltimore Co. United States |
MD 45 / MD 146 / Joppa Rd. / Allegheny Ave. (39.40185, -76.60230) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 47.9892 |
Other (At-Grade) Multilane (2 Lane) |
1998 | Opened October 1998. Exit striping retrofitted to roundabout after opening. Hotdog/racetrack shape. ICD estimated from Google Maps linework. 21442 |
|
Clearwater,
FL Pinellas Co. United States |
SR 60 / Coronado Dr. (SR 699) / Mandalay Ave. / Poinsettia Ave. (Gateway Roundabout) (27.97752, -82.82709) |
Roundabout Existing |
All-Way Yield Metering Signal |
6 Approaches 0 Driveways 68.5587 |
Other (At-Grade) Multilane (2 Lane) |
1999 | Modified 2002-2004 to change geometry and striping, and remove fountain. 21442 |
|
Emporia,
KS Lyon Co. United States |
US 50 Connector / US 50 (38.41225, -96.22947) |
Roundabout Existing |
All-Way Yield None |
0 Approaches 0 Driveways 85.3440 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2008 | New interchange configuration. Half double-lane, half triple-lane. Opened November 2008. Modified 2011-2013 to reduce lanes. NCHRP Synthesis 488. 21442 |
|
Ritchie,
MD Prince Georges Co. United States |
Ritchie-Marlboro Rd. / I-95 SB Ramps (38.86894, -76.84738) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 770.9968 |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
2001 | Opening initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442 |
|
Ritchie,
MD Prince Georges Co. United States |
Ritchie-Marlboro Rd. / I-95 NB Ramps (38.86824, -76.84158) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 67.0560 |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
2001 | Opened initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442 |
|
Odenton,
MD Anne Arundel Co. United States |
MD 175 / MD 677 / Higgins Dr. (39.07831, -76.68481) |
Roundabout Existing |
All-Way Yield Unknown |
5 Approaches 0 Driveways 57.9120 |
Other (At-Grade) Multilane (2 Lane) |
2004 | Reduced from two lanes to one lane in 2010. 21442 |
|
Jessup,
MD Anne Arundel Co. United States |
MD 198 (Laurel Fort Meade Rd.) / MD 32 EB Ramps (39.08997, -76.75736) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 53.3400 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2002 | Lanes reduced in 2010. 21442 |
|
Jessup,
MD Anne Arundel Co. United States |
MD 198 (Laurel Fort Meade Rd.) / MD 32 WB Ramps (39.09178, -76.75688) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 53.3400 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2002 | Lanes reduced in 2010. 21442 |
|
Seymour,
CT New Haven Co. United States |
Rte. 188 / Rte. 334 (Great Hill Rd.) / Holbrook Rd. (41.37857, -73.12669) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 35.8469 |
Other (At-Grade) Single-Lane |
2016 | Previous traffic circle was upgraded to modern roundabout design guidelines. 21442 |
|
Killingworth,
CT Middledex Co. United States |
Rte. 80 / Rte. 81 (41.35801, -72.56517) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Single-Lane |
1997 | First rotary modification in Connecticut. 21442 |
|
Long Beach,
CA Los Angeles Co. United States |
Los Alamitos Circle (Hwy. 1 / Lakewood Blvd. / Los Coyotes Diagonal) (33.78989, -118.14250) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 137.1600 |
Other (At-Grade) Multilane (2 Lane) |
1993 | Traffic circle conversion. Modified in 2020 to reduce lanes. 21442 |
|
Palmdale,
CA Los Angeles Co. United States |
Palmdale Blvd. (SR 138) / 47th St. / 50th St. (34.58010, -118.04510) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 57.9120 |
Other (At-Grade) Multilane (2 Lane) |
2009 | Modified 2019-2020 to add lanes. 21442 |
|
Bellevue,
WA King Co. United States |
W Lake Sammamish Pkwy SE / I-90 WB Ramps (47.56690, -122.09947) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 139.9998 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2013 | Open November 2013. Raindrop shape. |
|
Richland,
WA Benton Co. United States |
Steptoe Dr. / SR 240 EB Ramps / Columbia Park Trl. (46.23893, -119.24546) |
Roundabout Existing |
All-Way Yield Metering Signal |
5 Approaches 0 Driveways 49.5635 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2007 | 5th leg is on-ramp to SR 240. Opened November 2007. Lane configuration reduced in 2016. Modified in 2018 to add metering signal. According to local news (link below) they started metering the traffic on the westbound Columbia Park Trail approach in 2018. It only turns on when traffic coming off the freeway gets backed up. https://97rockonline.com/tri-cities-roundabout-gets-new-metered-traffic-light-wait-what/ 21442 |
|
Carmel,
IN Hamilton Co. United States |
E 136th St. / Keystone Pkwy NB Ramps (39.98598, -86.11404) |
Roundabout Existing |
All-Way Yield Metering Signal |
3 Approaches 0 Driveways 38.1000 |
Freeway Ramps (Grade-Separated) Single-Lane |
2009 | Part of tight diamond interchange with raindrop shape central island. Modified in 2016-2017 to add metering signals. Northbound ramp from Keystone Pkwy has a metering signal (PHB) that activates during peak hours when triggered by a long westbound queue. Eastbound approach has a metering signal (PHB) that activates during peak hours when triggered by a long northbound queue. 21442 |
|
Houston,
TX Harris Co. United States |
Broadway / Park Pl. / I-45 Frontage Roads (29.68551, -95.27756) |
Signalized Roundabout/Circle Existing |
Signal Unknown |
6 Approaches 0 Driveways 109.7280 |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
||
|
Houston,
TX Harris Co. United States |
Dover St. / Moline St. (29.68365, -95.28025) |
Other Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 47.2440 |
Other (At-Grade) Single-Lane |
No splitter islands. Oval shape. ICD 180 ft x 130 ft. | |
|
Houston,
TX Harris Co. United States |
Joplin St. / Poplar St. (29.68898, -95.28702) |
Other Existing |
All-Way Stop Unknown |
4 Approaches 0 Driveways 51.8160 |
Other (At-Grade) Single-Lane |
||
|
Houston,
TX Harris Co. United States |
Grove Ridge Dr. / Leonora St. (29.67659, -95.28483) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 28.9560 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
|
Houston,
TX Harris Co. United States |
Carothers St. / Kinney St. (29.68701, -95.30075) |
Other Existing |
Uncontrolled Unknown |
4 Approaches 0 Driveways 88.3920 |
Other (At-Grade) Single-Lane |
Six houses within central island, parking along circulatory roadway, bidirectional travel along circulatory roadway. | |
|
Temecula,
CA Riverside Co. United States |
Ynez Rd. / La Paz Rd. (33.48124, -117.13235) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2019 | |
|
Pine Knoll,
AZ Coconino Co. United States |
E Paseo del Rio / S Brannen Cir. (35.18588, -111.64642) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 21.3360 |
Other (At-Grade) Mini-roundabout |
2017 | Year Completed estimated (2016-2017). |
|
Pine Knoll,
AZ Coconino Co. United States |
E Paseo del Rio / S Calle Reposa (35.18598, -111.64522) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 18.2880 |
Other (At-Grade) Mini-roundabout |
2017 | |
|
Elkhorn,
NE Douglas Co. United States |
N 204th St. (SR 31) / Pawnee Rd. (SR 36) (41.37871, -96.23428) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2020 | https://dcpostgazette.com/2020/05/28/construction-of-roundabout-completed/ |
|
Bel Air North,
MD Harford Co. United States |
Water Tower Way / Bynum Rd. (39.56671, -76.35712) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.9560 |
Other (At-Grade) Single-Lane |
2019 | http://harfordcountymd.gov/ArchiveCenter/ViewFile/Item/1683 |
|
Cedar Lake,
IN Lake Co. United States |
Lake Shore Dr. / Cline Ave. (41.38527, -87.43120) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2020 | https://cedarlakein.org/blog-post/cline-lake-shore-drive-roundabout-update-05-27-20/ |
|
Starke,
FL Bradford Co. United States |
NW 83rd Ave. / NW 77th Ave. / NW 228th St. (30.06115, -82.18254) |
Other Existing |
Uncontrolled Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No control. | |
|
Ljubljana,
Ljubljana Slovenia |
Rte 104 / H3 Ramps (46.08086, 14.52750) |
Signalized Roundabout/Circle Existing |
Signal Unknown |
4 Approaches 0 Driveways 230.0000 |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
||
|
Koper,
Koper Slovenia |
Ljubljanska cesta / Ferrarska ulica (45.54332, 13.73102) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 60.0000 |
Other (At-Grade) Multilane (2 Lane) |
2008 | Turboroundabout. https://e-zbornik.gf.sum.ba/images/radovi//e_zbornik_03_01.pdf |
|
Nampa,
ID Canyon Co. United States |
E Franklin Rd. / Star Rd. / N Robinson Rd. (43.60497, -116.49357) |
Roundabout Removed |
All-Way Yield Unknown |
4 Approaches 0 Driveways 54.8640 |
Other (At-Grade) Single-Lane |
2012 | Roundabout removed 2020 in conjunction with construction of Amazon center. Original roundabout completed 2012 and had right-turn-only lanes on north and south legs. |
|
Plainfield,
IN Hendricks Co. United States |
E County Road 600 S / Sugar Grove Rd. (39.67425, -86.39889) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 54.8640 |
Other (At-Grade) Single-Lane |
2013 | |
|
Nellis AFB,
NV Clark Co. United States |
Ellsworth Ave. / Beale Ave. (36.24458, -115.04291) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.1000 |
Other (At-Grade) Single-Lane |
2013 | Year Completed estimated (2012-2014). |
|
Champlin,
MN Hennepin Co. United States |
W River Rd. / E Hayden Lake Rd. (45.18068, -93.38559) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.0520 |
Other (At-Grade) Single-Lane |
2014 |