Roundabouts Database

29359 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
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.
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 E / Pioneer Rd.
(40.52518, -111.85340) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.2210 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2001 ICD estimated from Google Maps linework. Constructed as single-lane in 2001. Updated to 2x1 in 2023. https://www.draperjournal.com/2023/09/07/464782/roundabout-reopens-early-with-revised-traffic-pattern
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 		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.
Orem, UT
Utah Co.
United States 		S 800 W / College Dr. / Sandhill Rd. (UVSC South Entrance)
(40.27592, -111.71290) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
36.4480 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1996 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.
Rosemont, MD
Frederick Co.
United States 		MD 17 / MD 180
(39.33768, -77.63950) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
30.4828 		Other (At-Grade)
Single-Lane 		2001 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.
Omaha, NE
Douglas Co.
United States 		N Saddle Creek Rd. / Country Club Ave. / Seward St. / 50th St. / Happy Hollow Rd.
(41.27431, -95.99039) 		Roundabout
Existing 		Unknown
Unknown 		8 Approaches
0 Driveways
28.7235 		Other (At-Grade)
Single-Lane 		2003 Dogbone/peanut shape. 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.
Town and Country, MO
St. Louis Co.
United States 		MO 141 SB Ramps / Woods Mill Rd.
(38.63523, -90.51449) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
38.2503 		Other (At-Grade)
Single-Lane 		2002 Previously controlled by one-way stop 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.
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.
Encinitas, CA
San Diego Co.
United States 		Leucadia Blvd / Hymettus Ave
(33.06470, -117.29620) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
21.0192 		Other (At-Grade)
Single-Lane 		2004 Previously controlled by two-way stop Functional Class: Collector 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.
Encinitas, CA
San Diego Co.
United States 		Leucadia Blvd / Hermes Ave
(33.06482, -117.30010) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
18.0164 		Other (At-Grade)
Single-Lane 		2004 Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
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.
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.
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.
Golden, CO
Jefferson Co.
United States 		S. Golden Rd. / Ulysses St.
(39.73771, -105.19390) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.5734 		Other (At-Grade)
Single-Lane 		1998 Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Main entrance to shopping center. Functional Class: Arterial ICD estimated from Google Maps linework.
Grand Junction, CO
Mesa Co.
United States 		Horizon Dr. / 12th St.
(39.10165, -108.55234) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
1 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		1998 Bicycle-only (bike-only) driveway into circulatory roadway in northeast quadrant, leading into bicycle (bike) roundabout.
Howard, WI
Brown Co.
United States 		Glendale Ave. / Hillcrest Heights
(44.56551, -88.09801) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9305 		Other (At-Grade)
Single-Lane 		2008 Opened August 1, 2008. ICD estimated from Google Maps linework.
Lake Oswego, OR
Clackamas Co.
United States 		SW Carman Dr. / SW Meadows Rd. / SW Quarry Rd.
(45.41700, -122.72490) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.3422 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		SW Colorado Ave. / SW Simpson St.
(44.04770, -121.32290) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.2050 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Clearwater, FL
Pinellas Co.
United States 		Mandalay Ave. / Acacia St.
(27.98970, -82.82660) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.4750 		Other (At-Grade)
Single-Lane 		2001 Boundary between commercial and residential area. Allows traffic attempting to park to use roundabout for U-turn without entering residential area. Also serves as U-turn for everyone, including WB-50 semis. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Boynton Beach, FL
Palm Beach Co.
United States 		Hagen Ranch Rd. / Charleston Shores Blvd.
(26.56520, -80.15560) 		Roundabout
Existing 		All-Way Yield
Active Pedestrian Warning (flashing yellow) 		4 Approaches
0 Driveways
23.5012 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Boynton Beach, FL
Palm Beach Co.
United States 		Hagen Ranch Rd. / Gateway Blvd. / Aberdeen Lakes Rd.
(26.54660, -80.16390) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
23.5051 		Other (At-Grade)
Single-Lane 		2000 Date estimated. ICD estimated from Google Maps linework.
Boynton Beach, FL
Palm Beach Co.
United States 		Hagen Ranch Rd. / Le Chalet Blvd.
(26.55650, -80.15710) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.2298 		Other (At-Grade)
Single-Lane 		2000 Date estimated. ICD estimated from Google Maps linework.