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
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.
Topeka, KS
Shawnee Co.
United States
Wanamaker Rd. / SW 6th Ave.
(39.05662, -95.76134)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
54.7180
Other (At-Grade)
Single-Lane
2004 Intersection expanded for new development. Previously T with 6th controlled by stop sign. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States
45th St. / Croco Rd.
(38.98618, -95.61436)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
46.4174
Other (At-Grade)
Single-Lane
2008 ICD estimated from Google Maps linework.
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, unspecified)
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
Desert Primrose Ln. / Desert Marigold Ln. / Blue Willow Ln.
(36.14060, -115.32090)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.5093
Other (At-Grade)
Multilane (2 Lane, unspecified)
1999 Functional Class: Collector ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV
Clark Co.
United States
Desert Primrose Ln. / Spotted Leaf Ln. / Pavillion Center Dr.
(36.14070, -115.33120)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
41.4737
Other (At-Grade)
Multilane (2 Lane, unspecified)
1999 Functional Class: Collector ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV
Clark Co.
United States
Havenwood Ave. / Spotted Leaf Ln. / Golden Willow
(36.13300, -115.33040)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
37.6194
Other (At-Grade)
Multilane (2 Lane, unspecified)
1999 Functional Class: Collector ICD estimated from Google Maps linework.
Las Vegas (Summerlin), NV
Clark Co.
United States
Havenwood Ave. / Desert Marigold Ln. / Navajo Willow Ln.
(36.13360, -115.32110)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
39.5483
Other (At-Grade)
Multilane (2 Lane, unspecified)
2000 Functional Class: Collector. Year Completed estimated (1999-2002). ICD estimated from Google Maps linework.
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
Howard, WI
Brown Co.
United States
Lineville Rd. (CTH M) / Cardinal Ln. (CTH EB)
(44.59090, -88.08430)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
29.7684
Other (At-Grade)
Single-Lane
1999 Roundabout is near Forest Glen Elementary School, Lineville Intermediate School, and Bay Port High School. Completed October 1999. http://www.co.brown.wi.us/Planning/roundabouts.html Functional Class: Arterial ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States
Lineville Rd. (CTH M) / Rockwell Ln.
(44.59080, -88.08880)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
28.0674
Other (At-Grade)
Single-Lane
1999 Roundabout is adjacent to Lineville Intermediate School, Middle School, and High School. School did not allow pedestrian crossings prior to roundabout due to unsafe conditions, now allows crossings using crossing guard. Completed October 1999. http://www.co.brown.wi.us/Planning/roundabouts.html Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Scottsdale, AZ
Maricopa Co.
United States
Princess Blvd. / Princess Dr.
(33.64804, -111.91795)
Other
Existing
All-Way Yield
None
3 Approaches
0 Driveways
64.0077
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
1986 Painted spiral next to central island. Completed 1986. Reconfigured in 2007? 21442
Salt Lake City, UT
Salt Lake Co.
United States
South Campus Dr. / Center Campus Dr.
(40.75968, -111.84490)
Roundabout
Existing
All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling all approaches)
3 Approaches
0 Driveways
39.6240
Other (At-Grade)
Single-Lane
2003 Light rail runs through center of roundabout. Gates on both circulatory roadway and on east and west approaches.
Alpine, UT
Utah Co.
United States
Canyon Crest Rd. / 200 West
(40.45012, -111.78150)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.3540
Other (At-Grade)
Single-Lane
2004 ICD estimated from Google Maps linework.
Green Bay, WI
Brown Co.
United States
Mason St. (STH 32-STH 54) / S. Taylor St.
(44.52414, -88.07916)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
43.4266
Other (At-Grade)
Multilane (2 Lane, unspecified)
2012 Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework.
Green Bay, WI
Brown Co.
United States
Shawano Ave. (STH 29) / Taylor St.
(44.53461, -88.07319)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
49.3783
Other (At-Grade)
Multilane (3+ Lane)
2011 Opened September 2011. ICD estimated from Google Maps linework.
Draper, UT
Salt Lake Co.
United States
1300 East / Pioneer Rd
(40.52518, -111.85340)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
37.2212
Other (At-Grade)
Single-Lane
2001 ICD estimated from Google Maps linework.
Orem, UT
Utah Co.
United States
1200 South / 400 West
(40.27531, -111.70480)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
30.9811
Other (At-Grade)
Single-Lane
2000 ICD estimated from Google Maps linework.
Draper, UT
Salt Lake Co.
United States
300 East / 12200 South
(40.52863, -111.88180)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
37.2193
Other (At-Grade)
Single-Lane
2001 ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States
200 West (Freedom Blvd.) / 920 South
(40.22177, -111.66230)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
25.5341
Other (At-Grade)
Single-Lane
2000 ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States
3700 North / 300 West
(40.28282, -111.66310)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
28.2444
Other (At-Grade)
Single-Lane
2001 ICD estimated from Google Maps linework.
Provo, UT
Utah Co.
United States
1375 West / 820 North
(40.24470, -111.68280)
Roundabout
Existing
All-Way Yield
None
3 Approaches
1 Driveways
28.2603
Other (At-Grade)
Single-Lane
2001 ICD estimated from Google Maps linework.
Orem, UT
Utah Co.
United States
2000 South / Sandhill Rd.
(40.26074, -111.70420)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
33.7220
Other (At-Grade)
Single-Lane
2006 ICD estimated from Google Maps linework.
St. George, UT
Washington Co.
United States
Tabernacle Rd. / Main St.
(37.10812, -113.58350)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
23.8119
Other (At-Grade)
Single-Lane
2001 ICD estimated from Google Maps linework.
St. George, UT
Washington Co.
United States
E. Brigham Rd. / I-15 NB Ramps
(37.05939, -113.58350)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
42.8889
Freeway Ramps (Grade-Separated)
Single-Lane
2006 Raindrop-shaped interchange terminal. ICD estimated from Google Maps linework.
Park City, UT
Summit Co.
United States
Powderwood Dr. / Factory Outlet Parking
(40.72733, -111.55255)
Other
Existing
All-Way Yield
None
3 Approaches
0 Driveways
24.4374
Other (At-Grade)
Single-Lane
2000 Pedestrian access to central island. ICD estimated from Google Maps linework.
Park City, UT
Summit Co.
United States
Kilby Rd. / Factory Outlet Parking
(40.73040, -111.55040)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
34.3918
Other (At-Grade)
Multilane (2 Lane, unspecified)
2000 ICD estimated from Google Maps linework.
Rising Sun, MD
Cecil Co.
United States
MD 273 (Rising Sun Rd.) / MD 276 (Jacob Tome Memorial Hwy.)
(39.69595, -76.08018)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
39.5157
Other (At-Grade)
Single-Lane
2003 ICD estimated from Google Maps linework.
Urbana, MD
Frederick Co.
United States
MD 80 / Sugarloaf Pkwy. / Bennett Creek Blvd.
(39.32467, -77.34974)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
52.6619
Other (At-Grade)
Multilane (2 Lane, unspecified)
2000 Rural ICD estimated from Google Maps linework.
Bel Air, MD
Harford Co.
United States
MD 7 / Holly Oaks Drive
(39.48848, -76.21669)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
34.1039
Other (At-Grade)
Single-Lane
1999 Opened September 1999. ICD estimated from Google Maps linework.
North Harford, MD
Harford Co.
United States
MD 165 / MD 24
(39.67220, -76.40930)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
32.1750
Other (At-Grade)
Single-Lane
2000 Rural Previously controlled by two-way stop ICD estimated from Google Maps linework.
Scottsdale, AZ
Maricopa Co.
United States
N. 104th St. / E. Cholla St.
(33.58976, -111.85660)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
21.8878
Other (At-Grade)
Single-Lane
2005 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.
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.
Millington, MD
Kent Co.
United States
MD 291 / US 301 SB Ramps
(39.26463, -75.86641)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
31.4393
Freeway Ramps (Grade-Separated)
Single-Lane
1999 Opened August 1999. ICD estimated from Google Maps linework.
Millington, MD
Kent Co.
United States
MD 291 / US 301 NB Ramps
(39.26386, -75.86260)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.6656
Freeway Ramps (Grade-Separated)
Single-Lane
1999 Opened August 1999. ICD estimated from Google Maps linework.
Scottsdale, AZ
Maricopa Co.
United States
N 70th Pl. / E Chaparral Rd.
(33.50954, -111.92900)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
27.4320
Other (At-Grade)
Single-Lane
2016 A traffic calming circle was completed in 2002 on what was otherwise a TWSC intersection. Roundabout constructed in 2016. On south leg there is no entry into the roundabout but instead a yield-controlled right-turn bypass lane to prevent northbound-to-westbound cut-through traffic.
Oak Grove, MD
Prince Georges Co.
United States
MD 193 (Watkins Park Dr.) / Oak Grove Rd.
(38.87737, -76.78108)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
38.1207
Other (At-Grade)
Single-Lane
2001 ICD estimated from Google Maps linework.
Temple Hills, MD
Prince Georges Co.
United States
MD 637 (Naylor Rd.) / Good Hope Ave.
(38.84922, -76.95655)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
31.6248
Other (At-Grade)
Single-Lane
2001 ICD estimated from Google Maps linework.
Temple Hills, MD
Prince Georges Co.
United States
MD 637 (Naylor Rd.) / Oxon Run Dr.
(38.84986, -76.95789)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
34.4150
Other (At-Grade)
Single-Lane
2001 ICD estimated from Google Maps linework.
Castle Marina, MD
Queen Annes Co.
United States
MD 18 / Castle Marina Rd.
(38.97871, -76.28938)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.7819
Other (At-Grade)
Single-Lane
1999 Previously controlled by two-way stop ICD estimated from Google Maps linework.
Kennewick, WA
Benton Co.
United States
Columbia Park Drive #1
(46.22221, -119.15110)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
38.8367
Other (At-Grade)
Single-Lane
2001 Completed February 2001. Functional Class: Local ICD estimated from Google Maps linework.
Kennewick, WA
Benton Co.
United States
Columbia Park Drive #2
(46.22223, -119.14630)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
54.5366
Other (At-Grade)
Single-Lane
2001 Completed February 2001 Functional Class: Local ICD estimated from Google Maps linework.
Juneau, AK
Juneau
United States
Douglas Hwy / North Douglas Hwy
(58.29718, -134.43280)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
38.9134
Other (At-Grade)
Single-Lane
2005 Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States
NE Mt. Hood Ave. / Frontage Rd. / PDX Airport Economy Blue Lot / PDX Airport Economy Red Lot
(45.57770, -122.55950)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.7822
Other (At-Grade)
Single-Lane
2000 ICD estimated from Google Maps linework.
Tooele, UT
Tooele Co.
United States
W 2000 N / N 70 W
(40.56555, -112.30310)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
37.1987
Other (At-Grade)
Single-Lane
2000 ICD estimated from Google Maps linework.
North Haven, NY
Suffolk Co.
United States
Tyndall Road / Rte. 114 (Ferry Rd.)
(41.01303, -72.31309)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
25.2334
Other (At-Grade)
Single-Lane
2001 Replaced a dangerous 2-way stop. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Lacey, WA
Thurston Co.
United States
Marvin Rd. / Britton Pkwy.
(47.06905, -122.77090)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
46.3682
Other (At-Grade)
Multilane (2 Lane, unspecified)
2000 Completed September 14, 2000. Functional Class: Arterial ICD estimated from Google Maps linework.
Duvall, WA
King Co.
United States
SR 203 (Carnation-Duvall Rd.) / 124th St. / Novelty Hill
(47.70910, -121.98440)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.9865
Other (At-Grade)
Multilane (2 Lane, unspecified)
2004 http://www.wsdot.wa.gov/projects/sr203/NE124thNoveltyRd/ Functional Class: Arterial ICD estimated from Google Maps linework.
Gig Harbor, WA
Pierce Co.
United States
Borgen Blvd. / SR 16 NB Ramps / Burnham Dr.
(47.35843, -122.61260)
Roundabout
Existing
All-Way Yield
None
6 Approaches
0 Driveways
47.7339
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
2001 Oval shaped central island. 6 legged configuration includes a on-ramp (outbound)leg. Central island is used as a roadway storm detention pond. Completed Summer/Fall 2001. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Moses Lake, WA
Grant Co.
United States
Yonezawa Blvd. / Clover Dr. / Kittleson Rd.
(47.10387, -119.25730)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
43.8990
Other (At-Grade)
Single-Lane
2001 Part of series of 3 roundabouts. Functional Class: Collector ICD estimated from Google Maps linework.
Moses Lake, WA
Grant Co.
United States
Yonezawa Blvd. / Leanne Ave.
(47.10454, -119.27060)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
41.4597
Other (At-Grade)
Single-Lane
2001 Completed fall 2001. Part of series of 3 roundabouts. Functional Class: Collector ICD estimated from Google Maps linework.
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, unspecified)
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
Bend, OR
Deschutes Co.
United States
SW Mt. Washington Dr. / SW Simpson Ave.
(44.04736, -121.34400)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
32.6208
Other (At-Grade)
Single-Lane
2013 ICD estimated from Google Maps linework.
Bel Air, MD
Harford Co.
United States
Tollgate Rd. / Wheel Rd.
(39.48999, -76.32914)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.5729
Other (At-Grade)
Single-Lane
1999 http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Fairbanks, AK
Fairbanks North Star
United States
Thompson Dr / Tanana Loop Dr
(64.85564, -147.84200)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
52.2695
Other (At-Grade)
Single-Lane
2004 The site is on the University of Alaska, Fairbanks, school campus. The project constructed a new entrance onto the campus intersecting by means of a roundabout with an existing three leg stop controlled intersection. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Murray, KY
Calloway Co.
United States
Gilbert Groves Dr. / Murray State University parking lot
(36.62003, -88.31861)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
22.0473
Other (At-Grade)
Single-Lane
2003 ICD estimated from Google Maps linework.
Bainbridge Island, WA
Kitsap Co.
United States
High School Rd. / Madison Ave.
(47.63579, -122.52100)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
24.9484
Other (At-Grade)
Single-Lane
2000 Greatly reduced congestion. Initial public opposition has turned to full support. Project located next to 3 schools. Separated sidewalks, timed yellow flashing lights during school crossing. Crossing guards. Near library and shopping center. Opened October 2000. ICD estimated from Google Maps linework.
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
Guelph, ON
Wellington County
Canada
Summerfield Dr. / Colonial Dr.
(43.51809, -80.18253)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
29.4466
Other (At-Grade)
Single-Lane
2001 Located in Pine Ridge East residenital subdivision Functional Class: Collector ICD estimated from Google Maps linework.
Lexington, KY
Lexington-Fayette Co.
United States
Old Frankfort Pike / Alexandria Dr.
(38.06952, -84.55762)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.7200
Other (At-Grade)
Single-Lane
2010
Lafayette, LA
Lafayette Par.
United States
Settlers Trace / River Ranch Dr.
(30.17073, -92.03625)
Roundabout
Existing
All-Way Yield
None
2 Approaches
0 Driveways
42.3339
Other (At-Grade)
Multilane (2 Lane, unspecified)
2001 This a part of a Neo Traditional Neighborhood and the related street system. Completed June 2001. Functional Class: Collector ICD estimated from Google Maps linework.
Hebron, KY
Kenton Co.
United States
North Bend Rd. / Graves Rd. / Old North Bend Rd.
(39.09881, -84.71849)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
46.3432
Other (At-Grade)
Single-Lane
2009 ICD estimated from Google Maps linework.
Okemos, MI
Ingham Co.
United States
Hamilton Rd. / Marsh Rd.
(42.71625, -84.42687)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
29.8350
Other (At-Grade)
Multilane (2 Lane, unspecified)
2000 ICD estimated from Google Maps linework.
Dimondale, MI
Eaton Co.
United States
East Rd. / Creyts Rd.
(42.64743, -84.64275)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
31.6250
Other (At-Grade)
Single-lane w/ Traversable Central Island
2001 British-style mini-roundabout. http://www.teachamerica.com/roundabouts/RA054A_Waddell_ppr.pdf ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States
5th St. / Cantrill Dr.
(38.55160, -121.72010)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
28.9547
Other (At-Grade)
Single-Lane
1998 Police station on SW corner. Date estimated. ICD estimated from Google Maps linework.
Woodland, CA
Yolo Co.
United States
Gum Ave. / Bourn Dr.
(38.66820, -121.74710)
Roundabout
Removed
All-Way Yield
None
4 Approaches
0 Driveways
64.3428
Other (At-Grade)
Single-Lane
2008 Built as temporary in 2002. Temporary removed in 2008 and converted to AWSC. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States
Moore Blvd. / Rockwell Dr.
(38.56830, -121.72630)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
25.2127
Other (At-Grade)
Single-Lane
1999 Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States
Moore Blvd. / Wright Blvd.
(38.56490, -121.71860)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
24.2801
Other (At-Grade)
Single-Lane
1999 Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Anchorage, AK
Anchorage
United States
Southport Dr. / Maritime Loop / Washington Ave.
(61.12706, -149.92590)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
29.9886
Other (At-Grade)
Single-Lane
2001 The first winter resulted in several accidents, including the loss of a number of light poles around the circle. In response, minor modifications were made to the roundabout in 2002. ICD estimated from Google Maps linework.
Fort Wayne, IN
Allen Co.
United States
Adams Center Rd. / Marion Center Rd. / Maples Rd. / Wayne Terrace
(41.00440, -85.05704)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
57.9120
Other (At-Grade)
Single-Lane
1995 Painted splitter islands. Year Completed estimated (before 1998).
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.
Mount Pleasant, SC
Charleston Co.
United States
Rifle Range Rd. / Bowman Rd. (Veterans Circle)
(32.80469, -79.84284)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
31.1197
Other (At-Grade)
Single-Lane
1998 Year Completed estimated (1994-2002) ICD estimated from Google Maps linework.
Malta, NY
Saratoga Co.
United States
Rte 67 (Dunning St.) / State Farm Pl.
(42.96991, -73.80676)
Roundabout
Existing
All-Way Yield
None
3 Approaches
1 Driveways
43.6952
Other (At-Grade)
Multilane (2 Lane, unspecified)
2006 Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Normal, IL
McLean Co.
United States
Beaufort St. / North St.
(40.50929, -88.98440)
Other
Existing
All-Way Yield
None
4 Approaches
0 Driveways
54.8640
Other (At-Grade)
Single-Lane
2009 Both a traffic solution and centerpiece for significant downtown redevelopment. Pedestrian access to central island. Completed Fall 2009. https://www.landscapeperformance.org/case-study-briefs/uptown-normal-circle-and-streetscape
Amelia Island, FL
Nassau Co.
United States
SR A1A / Beach Lagoon Rd.
(30.55541, -81.44933)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
35.0520
Other (At-Grade)
Single-Lane
2001 Elliptical shape. ICD = 125 ft x 105 ft. Year Completed estimated (1999-2003).
The Villages, FL
Sumter Co.
United States
Buena Vista Blvd. / Old Mill Run
(28.90720, -81.98250)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
57.5036
Other (At-Grade)
Multilane (2 Lane, unspecified)
2003 Bypass lane for southbound through movement in addition to two entry lanes. ICD estimated from Google Maps linework.
The Villages, FL
Sumter Co.
United States
Morse Blvd. / Mariposa Way / Mission Hills Run
(28.91829, -81.96940)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
57.4974
Other (At-Grade)
Multilane (2 Lane, unspecified)
2003 ICD estimated from Google Maps linework.
Amelia Island, FL
Nassau Co.
United States
Beach Walker Rd. / Beachwood Rd.
(30.55425, -81.44608)
Roundabout
Removed
All-Way Yield
None
3 Approaches
0 Driveways
27.4320
Other (At-Grade)
Single-Lane
2012 Roundabout completed before 1999, removed 2011-2013.
St. George, UT
Washington Co.
United States
E. Brigham Rd. / I-15 SB Ramps / Pioneer Rd.
(37.05999, -113.58560)
Roundabout
Existing
All-Way Yield
None
6 Approaches
0 Driveways
78.1526
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
2006 Combines interchange ramps and frontage road. ICD estimated from Google Maps linework.
Advance, NC
Davie Co.
United States
NC 801 / I-40 EB Ramps
(36.00655, -80.44083)
Roundabout
Removed
All-Way Yield
None
3 Approaches
0 Driveways
17.3907
Freeway Ramps (Grade-Separated)
Single-Lane
2002 Developer-built "temporary" intersection fix. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Clemmons, NC
Forsyth Co.
United States
Styers Ferry Rd. / Utility Dr. (River Ridge Roundabout)
(36.07380, -80.39124)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.9598
Other (At-Grade)
Single-Lane
2002 Built by developer. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Willimantic, CT
Windham Co.
United States
Eastern Rd. / (driveway) (ECSU Campus by clock tower)
(41.72001, -72.21691)
Traffic Calming Circle
Existing
All-Way Yield
None
3 Approaches
0 Driveways
24.0693
Other (At-Grade)
Single-Lane
1999 Not properly signed and painted, but lots of potential for demonstrating this intersection concept. ICD estimated from Google Maps linework.
Stafford Springs, CT
Tolland Co.
United States
Rte 32 / Rte 190
(41.95362, -72.30314)
Other
Existing
All-Way Yield
None
4 Approaches
0 Driveways
18.6523
Other (At-Grade)
Multilane (2 Lane, unspecified)
1890 Believed by some to be improperly signed and painted, though some roundabout features have been added in the past 10 years. Near railroad crossing. Year Completed estimated (1890?). ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States
Happy Valley Rd. / I-17 NB Ramps
(33.71291, -112.11477)
Roundabout
Removed
All-Way Yield
None
4 Approaches
0 Driveways
64.0077
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
2020 Initially constructed 2002, revised 2005. Removed in 2020, replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw. https://azdot.gov/adot-blog/requiem-roundabouts-least-ones-happy-valley-road 21442
Phoenix, AZ
Maricopa Co.
United States
Happy Valley Rd. / I-17 SB Ramps
(33.71292, -112.12019)
Roundabout
Removed
All-Way Yield
None
3 Approaches
0 Driveways
62.4840
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
2020 Initially constructed 2002, revised 2005. Removed in 2020, replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw. https://azdot.gov/adot-blog/requiem-roundabouts-least-ones-happy-valley-road 21442
Little Rock, AR
Pulaski Co.
United States
36th St. / Romine Rd. / West Rd.
(34.72098, -92.38181)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
22.5782
Other (At-Grade)
Single-Lane
2001 Elementary school and church nearby. http://www.contextsensitivesolutions.org/content/case_studies/kentucky_roundabout/resources/kentucky_roundabout_pdf/ Functional Class: Arterial ICD estimated from Google Maps linework.
Boulder, CO
Boulder Co.
United States
Balsam Ave. / 14th St.
(40.02675, -105.27840)
Traffic Calming Circle
Existing
All-Way Yield
None
4 Approaches
0 Driveways
16.4619
Other (At-Grade)
Single-Lane
ICD estimated from Google Maps linework.
Boulder, CO
Boulder Co.
United States
Balsam Ave. / 15th St.
(40.02675, -105.27660)
Traffic Calming Circle
Existing
All-Way Yield
None
4 Approaches
0 Driveways
8.2310
Other (At-Grade)
Single-Lane
ICD estimated from Google Maps linework.
Boulder, CO
Boulder Co.
United States
Kings Ridge Blvd. / Edison Ave.
(40.03098, -105.23950)
Other
Existing
All-Way Yield
None
3 Approaches
0 Driveways
23.7768
Other (At-Grade)
Single-Lane
ICD estimated from Google Maps linework.
Boulder, CO
Boulder Co.
United States
Kings Ridge Blvd. / Franklin Dr.
(40.03237, -105.23960)
Other
Existing
All-Way Yield
None
4 Approaches
0 Driveways
27.4342
Other (At-Grade)
Single-Lane
ICD estimated from Google Maps linework.
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
Gatineau, QC
Outaouais Region
Canada
Blvd. St.-Joseph (Rte. 105) / Rue Montcalm
(45.43146, -75.73314)
Roundabout
Existing
All-Way Yield
Pedestrian Signal (red-yellow-green to drivers)
3 Approaches
0 Driveways
23.4678
Other (At-Grade)
Multilane (2 Lane, unspecified)
2003 Opened December 9, 2003. Functional Class: Arterial ICD estimated from Google Maps linework.
Denver, CO
Denver Co.
United States
E. Lowry Blvd. / N. Uinta Way
(39.71986, -104.89070)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
50.5258
Other (At-Grade)
Multilane (2 Lane, unspecified)
1998 ICD estimated from Google Maps linework.
Denver, CO
Denver Co.
United States
E. Lowry Blvd. / Yosemite St.
(39.72373, -104.88400)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
51.4416
Other (At-Grade)
Multilane (2 Lane, unspecified)
1998 ICD estimated from Google Maps linework.
Frisco, CO
Summit Co.
United States
SH 9 / I-70 WB Ramps
(39.59339, -106.09700)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
34.0524
Freeway Ramps (Grade-Separated)
Single-Lane
2000 Highway ref. pt. 70-202.35. ICD estimated from Google Maps linework.
Calabasas, CA
Los Angeles Co.
United States
Parkway Calabasas / Camino Portal
(34.13878, -118.65890)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
30.6442
Other (At-Grade)
Single-Lane
2001 Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Originally double-lane roundabout. Parkway Calabasas approaches tapered to single-lane in advance of entry by striping. Functional Class: Arterial ICD estimated from Google Maps linework.
Golden, CO
Jefferson Co.
United States
S. Golden Rd. / Johnson Rd. / 16th St.
(39.74207, -105.20060)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
37.6526
Other (At-Grade)
Multilane (2 Lane, unspecified)
1998 Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Functional Class: Arterial ICD estimated from Google Maps linework.
Golden, CO
Jefferson Co.
United States
S. Golden Rd. / Lunnonhaus Dr.
(39.74062, -105.19840)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
32.0040
Other (At-Grade)
Multilane (2 Lane, unspecified)
1998 Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Small two-lane roundabout but with nontraversable central island.
Golden, CO
Jefferson Co.
United States
S. Golden Rd. / Utah St.
(39.73919, -105.19620)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
23.8782
Other (At-Grade)
Multilane (2 Lane, unspecified)
1998 Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.