Roundabouts Database

18082 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
Boise, ID
Ada Co.
United States 		S. Touchmark Way / E. Louise Dr.
(43.60317, -116.34880) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
29.4050 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Boise, ID
Ada Co.
United States 		S. Touchmark Way / S. Worth Way
(43.60206, -116.34610) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
30.2704 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Chattanooga, TN
Hamilton Co.
United States 		SR 153 NB Ramps / Lake Resort Dr.
(35.10986, -85.22842) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
55.6902 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane) 		2006 At new intersection with new bridge and alignment of Lake Resort Drive. Former intersection was ~800 to the south. Non-symetric design. Some motions have two lanes. Previously controlled by signal ICD estimated from Google Maps linework.
Chattanooga, TN
Hamilton Co.
United States 		SR 153 SB Ramps / N. Access Rd. / TVA offices
(35.10868, -85.23122) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
97.7036 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane) 		2006 N Access Road is a 4 lane arterial road. Fatal crash April 4, 2010. 11861-05. ICD estimated from Google Maps linework.
Brighton, MI
Livingston Co.
United States 		Lee Rd. / US 23 SB Ramps
(42.50605, -83.75954) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.8600 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane) 		2006 Linked with Lee Rd/Whitmore Lake Rd roundabout. Previously controlled by one-way stop control ICD estimated from Google Maps linework.
Brighton, MI
Livingston Co.
United States 		Lee Rd. / Whitmore Lake Rd.
(42.50627, -83.76012) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.2622 		Other (At-Grade)
Multilane (2 Lane) 		2006 Linked with US 23 SB Ramps/Lee Rd. roundabout. Functional Class: Arterial ICD estimated from Google Maps linework.
Buena Vista Township, MI
Saginaw Co.
United States 		M-81 / I-75 SB Ramps
(43.45060, -83.89209) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.6818 		Freeway Ramps (Grade-Separated)
Single-Lane 		2006 Right turn bypass lanes ICD estimated from Google Maps linework.
Buena Vista Township, MI
Saginaw Co.
United States 		M-81 / I-75 NB Ramps
(43.45056, -83.88958) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.6818 		Freeway Ramps (Grade-Separated)
Single-Lane 		2006 Right turn bypass lanes ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Research Pkwy. / (unknown #1)
(38.95966, -104.72230) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.5774 		Other (At-Grade)
Multilane (2 Lane) 		2006 Has marked double-left turn at northbound entry using conventional arrows. Functional Class: Arterial ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Research Pkwy. / (unknown #2)
(38.96123, -104.71810) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.2198 		Other (At-Grade)
Multilane (2 Lane) 		2006 Functional Class: Arterial ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Research Pkwy. / (unknown #3)
(38.96204, -104.71430) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.1479 		Other (At-Grade)
Multilane (2 Lane) 		2006 Functional Class: Arterial ICD estimated from Google Maps linework.
Spokane, WA
Spokane Co.
United States 		Crestline Rd. / Lincoln St.
(47.72944, -117.37920) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.5271 		Other (At-Grade)
Single-Lane 		2006 Opened September 2006. ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Kettle Drum St. / Antelope Ridge Dr.
(38.90673, -104.68530) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.6699 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Nampa, ID
Canyon Co.
United States 		Happy Valley Rd. / Amity Ave.
(43.56146, -116.51290) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.2726 		Other (At-Grade)
Single-Lane 		2006 Designed for ultimate two-lane w/ 180-ft ICD. Current 160-ft single-lane is initial build. Previously controlled by 4-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Branson, MO
Taney Co.
United States 		Branson Landing Blvd. / Veterans Blvd. / Skaggs Rd. / Parnell Dr.
(36.64981, -93.21976) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
63.2418 		Other (At-Grade)
Multilane (2 Lane) 		2006 Near Skaggs Community Health Center Hospital. Veterans Boulevard was formerly Business 65 but was transferred from MoDOT to the city. Cost of roundabout was $1.9 million. News article: http://www.news-leader.com/apps/pbcs.dll/article?Date=20060324&Category=NEWS02&ArtNo=603240360&SectionCat=&Template=printart ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW Crossing Dr. / Lemhi Pass Rd.
(44.06210, -121.34600) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.7544 		Other (At-Grade)
Single-Lane 		2006 New roads as part of NW Crossing Development ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW Crossing Dr. / Shevlin Park Road
(44.06410, -121.34480) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.3280 		Other (At-Grade)
Single-Lane 		2006 Intersection as part of NW Crossing Development. Connection to existing NW Shevlin Park Road. ICD estimated from Google Maps linework.
Estero, FL
Lee Co.
United States 		Williams Rd. / Chapel Trace
(26.41990, -81.83160) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
29.9485 		Other (At-Grade)
Single-Lane 		2006 Near Estero High School. ICD estimated from Google Maps linework.
Greensboro, NC
Guilford Co.
United States 		Lake Jeanette Rd. / Bass Chapel Rd. / N. Elm St.
(36.14622, -79.81002) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.8620 		Other (At-Grade)
Single-Lane 		2006 This location currently meets traffic signal warrants. We are installing the roundabout instead of a traffic signal. Previously controlled by stop sign Functional Class: Minor Arterial ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		61st Ave. S / S. Cooper St.
(47.51166, -122.25710) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown 		2006
Seattle, WA
King Co.
United States 		42nd Ave. SW / SW Hinds St.
(47.57318, -122.38570) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
9.6690 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Linden Ave. N / N. 42nd St.
(47.65774, -122.34850) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
56.3115 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		44th Ave. SW / SW College St.
(47.58301, -122.38780) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
37.0576 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		30th Ave. SW / SW Cloverdale St.
(47.52648, -122.37120) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
64.5176 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Anchorage, AK
Anchorage
United States 		C St. / O'Malley EB Ramps
(61.12273, -149.88630) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.5659 		Other (At-Grade)
Multilane (2 Lane) 		2006 Functional Class: Arterial ICD estimated from Google Maps linework.
Anchorage, AK
Anchorage
United States 		C St. / O'Malley WB Ramps
(61.12404, -149.88630) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
47.2943 		Other (At-Grade)
Multilane (2 Lane) 		2006 Functional Class: Arterial ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		34th Ave. SW / SW Henderson St.
(47.52286, -122.37530) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
42.7458 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		61st Ave. S / S Norfolk St.
(47.51337, -122.25705) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2006
Truckee, CA
Nevada Co.
United States 		Brockway Rd. / Martis Valley Rd.
(39.32135, -120.16269) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2006
Oviedo, FL
Seminole Co.
United States 		Franklin St. / Geneva Dr. / Division St.
(28.67359, -81.20439) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
34.5795 		Other (At-Grade)
Single-Lane 		2006 Website: http://www.cityofoviedo.net/files/Roundabouts.pdf ICD estimated from Google Maps linework.
Malta, NY
Saratoga Co.
United States 		Rte 67 (Dunning St.) / Kelch Dr. / Blacksmith Dr. (Malta Commons)
(42.97073, -73.79816) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.8207 		Other (At-Grade)
Multilane (2 Lane) 		2006 Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Prescott, AZ
Yavapai Co.
United States 		SR 89 / Willow Lake Rd.
(34.59233, -112.42580) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
59.9743 		Other (At-Grade)
Multilane (2 Lane) 		2006 ICD estimated from Google Maps linework.
Greenwich, CT
Fairfield Co.
United States 		King St. / Rye Lake Ave.
(41.07508, -73.70280) 		Roundabout
Removed 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2006 Temporary roundabout installed May 12, 2004. Functional Class: Local.
Garnett, KS
Harvey Co.
United States 		US 59 / US 169
(38.25832, -95.24861) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
46.8910 		Other (At-Grade)
Single-Lane 		2006 None. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		40th Ave. SW / SW Manning St.
(47.57122, -122.38250) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
7.2520 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		28th Ave. NE / NE Hiram Pl. / NE 120th St.
(47.71572, -122.29810) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
164.7289 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		24th Ave. S / S. Dearborn St.
(47.59557, -122.30120) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
13.6919 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		E. Mountain View Rd. / N. Central Ave.
(33.57510, -112.07360) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		0 Approaches
0 Driveways
16.9162 		Other (At-Grade)
Single-Lane 		2006 Mini-roundabout ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW Shevlin Park Rd. / Newport Ave. / College Way
(44.06240, -121.33770) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.6125 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		25th Ave. S / S. Dearborn St.
(47.59556, -122.30010) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown 		2006
Seattle, WA
King Co.
United States 		26th Ave. S / S. Dearborn St.
(47.59555, -122.29880) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
48.3244 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		26th Ave. S / S. Judkins St.
(47.59209, -122.29900) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
20.9420 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
(unincorporated), CO
Douglas Co.
United States 		Ridgegate Pkwy. / Ridgegate Cir. / Commons St.
(39.53187, -104.88300) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.4267 		Other (At-Grade)
Multilane (2 Lane) 		2006 Part of transit-oriented development near future light-rail station ICD estimated from Google Maps linework.
(unincorporated), CO
Douglas Co.
United States 		Ridgegate Pkwy. / Ridgegate Cir. / Park Meadows Blvd.
(39.52945, -104.87450) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.3498 		Other (At-Grade)
Multilane (2 Lane) 		2006 Part of transit-oriented development near future light-rail station ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		24th Ave. S / S. Norman St.
(47.59301, -122.30120) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
41.0778 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Copley Township, OH
Summit Co.
United States 		Ridgewood Rd. / Hametown Rd.
(41.11395, -81.66791) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.1947 		Other (At-Grade)
Single-Lane 		2006 Opened August 21, 2006. ICD estimated from Google Maps linework.
Clackamas, OR
Clackamas Co.
United States 		Monterey Ave. / Stevens Rd.
(45.43780, -122.56390) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.8738 		Other (At-Grade)
Single-Lane 		2006 Fourth leg serves New Hope Community Church parking lot. ICD estimated from Google Maps linework.
St. Simons, GA
Glynn Co.
United States 		Frederica Rd. / Lawrence Rd.
(31.21650, -81.37550) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
40.8563 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Malta, NY
Saratoga Co.
United States 		Rte 67 (Dunning St.) / I-87 SB Ramps
(42.97027, -73.80322) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.5689 		Other (At-Grade)
Multilane (2 Lane) 		2006 Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Malta, NY
Saratoga Co.
United States 		Rte 67 (Dunning St.) / US 9
(42.97116, -73.79296) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.6943 		Other (At-Grade)
Multilane (2 Lane) 		2006 Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Malta, NY
Saratoga Co.
United States 		Rte 67 (Dunning St.) / I-87 NB Ramps
(42.97052, -73.80057) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.9470 		Other (At-Grade)
Multilane (2 Lane) 		2006 Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Durango, CO
La Plata Co.
United States 		(Mercy Regional Medical Center ring road) / (unknown)
(37.23677, -107.82050) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.2308 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Durango, CO
La Plata Co.
United States 		(Mercy Regional Medical Center entrance drive) / (ring road)
(37.23339, -107.82310) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.6431 		Other (At-Grade)
Multilane (2 Lane) 		2006 Functional Class: Arterial ICD estimated from Google Maps linework.
Clovis, NM
Curry Co.
United States 		Hwy 245 (Llano Estacado Blvd.) / Norris St.
(34.43384, -103.17830) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.3276 		Other (At-Grade)
Single-Lane 		2006 Completed February 27, 2006. Website: http://www.cityofclovis.org/roundabout/roundabout.htm ICD estimated from Google Maps linework.
Modesto, CA
Stanislaus Co.
United States 		Sharon Ave. / Maid Mariane Rd.
(37.67451, -120.93050) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
20.7967 		Other (At-Grade)
Single-Lane 		2006 Opened July 27, 2006. Functional Class: Collector ICD estimated from Google Maps linework.
Modesto, CA
Stanislaus Co.
United States 		Sylvan Ave. / Millbrook Ave.
(37.68898, -120.93520) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.3658 		Other (At-Grade)
Multilane (2 Lane) 		2006 Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Overland Park, KS
Johnson Co.
United States 		133rd St. / Lamar Ave.
(38.88654, -94.65847) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.1862 		Other (At-Grade)
Single-Lane 		2006 Completed May 2006. ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		22nd Ave. E / E. Thomas St.
(47.62138, -122.30360) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown 		2006
Seattle, WA
King Co.
United States 		Densmore Ave. N / N 137th St.
(47.72867, -122.33830) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
16.8705 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		29th Ave. S / S. Judkins St.
(47.59217, -122.29550) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
12.8873 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		31st Ave. E / E. Denny St.
(47.62016, -122.29230) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
64.4023 		Other (At-Grade)
Unknown 		2006 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.
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.
Seattle, WA
King Co.
United States 		2nd Ave. NE / NE 91st St.
(47.69499, -122.32710) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
8.0388 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Linden Ave. N / N. 36th St.
(47.65116, -122.34860) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
35.4002 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Woodlawn Ave. N / N. 36th St.
(47.65051, -122.33870) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
12.8730 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		Sunnyside Ave. N / N. 43rd St.
(47.65912, -122.33020) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
 Other (At-Grade)
Unknown 		2006
Seattle, WA
King Co.
United States 		4th Ave. N / N. Prospect St.
(47.62890, -122.34880) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
10.4636 		Other (At-Grade)
Unknown 		2006 ICD estimated from Google Maps linework.
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) 		2006 Combines interchange ramps and frontage road. ICD estimated from Google Maps linework.
Seattle, WA
King Co.
United States 		21st Ave. E / E. Republican St.
(47.62320, -122.30470) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
5.6349 		Other (At-Grade)
Unknown 		2006 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) 		2006 Part of a series of 5 roundabouts. ICD estimated from Google Maps linework.
Tuttle West, OH
Franklin Co.
United States 		Bow Falls Blvd. / Cross River Falls Blvd. / Rainbow Falls St.
(40.05861, -83.17153) 		Traffic Calming Circle
Existing 		Other
Unknown 		4 Approaches
0 Driveways
115.1795 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Saskatoon, SK
Saskatchewan
Canada 		Stonebridge Blvd. / Galloway Rd. / Cornish Rd. / Gordon Rd.
(52.08399, -106.63531) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
42.5675 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Pocatello, ID
Bannock Co.
United States 		Hurley Dr. / Pole Line Rd.
(42.90782, -112.46041) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1149 		Other (At-Grade)
Multilane (2 Lane) 		2006 ICD estimated from Google Maps linework.
Bel Air South, MD
Harford Co.
United States 		S Tollgate Rd. / W Ring Factory Rd.
(39.50873, -76.34550) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
28.5652 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
Bel Air South, MD
Harford Co.
United States 		Abingdon Rd. / Dunbarton Dr. / Box Hill S Pkwy.
(39.47491, -76.30092) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
25.8134 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
East Harwich, MA
Barnstable Co.
United States 		Queen Anne Rd. / Orleans-Harwich Rd. (Rte 39)
(41.70049, -70.03164) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.8855 		Other (At-Grade)
Single-Lane 		2006 no crosswalks, no sidewalks ICD estimated from Google Maps linework.
Clinton, UT
Davis Co.
United States 		2300 N / 1500 W
(41.14715, -112.05485) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
31.4775 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		Cross Roads Blvd. / Rocky Mountain Ave.
(40.43602, -105.00153) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
34.5435 		Other (At-Grade)
Multilane (2 Lane) 		2006 ICD estimated from Google Maps linework.
San Ramon, CA
Contra Costa Co.
United States 		Monarch Rd. / Main Branch Rd.
(37.76644, -121.91149) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.4357 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
San Ramon, CA
Contra Costa Co.
United States 		S Monarch Rd. / Ivy Leaf Springs Rd. / Alpine Blue Dr.
(37.76185, -121.91048) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.6048 		Other (At-Grade)
Single-Lane 		2006 Opened with 2 approaches, third one added 2014-2015. ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Bristol Lake Dr. / Braddington Dr.
(38.89246, -92.29611) 		Traffic Calming Circle
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
22.3098 		Other (At-Grade)
Single-Lane 		2006 fourth approach is now built; see Google satellite view ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		American Pkwy. / Saddlebrook Pl.
(38.99086, -92.32150) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
34.3466 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Columbia, MO
Boone Co.
United States 		Cascades Dr. / Marietta Falls Ln. / Vancouver Cir.
(38.87294, -92.37750) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
25.1055 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Ajax, ON
Durham
Canada 		Williamson Dr. E / Thackery Dr.
(43.89065, -79.03319) 		Roundabout
Existing 		All-Way Yield
Unknown 		2 Approaches
0 Driveways
34.4284 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Ajax, ON
Durham
Canada 		Williamson Dr. E / Middlecote Dr.
(43.89247, -79.03166) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
32.7060 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Ajax, ON
Durham
Canada 		Williamson Dr. E / Gillett Dr.
(43.89564, -79.02358) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
30.9830 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2004-2009). ICD estimated from Google Maps linework.
Oshawa, ON
Durham
Canada 		Secretariat Ave. / Woodbine Ave.
(43.95049, -78.89431) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
32.6741 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2005=2009). ICD estimated from Google Maps linework.
Markham, ON
York
Canada 		Kenilworth Gate / The Barley Lea St. / Abberley St.
(43.87596, -79.23242) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
31.8541 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Calgary, AB
Alberta
Canada 		Crescent Blvd. SW / 42nd Ave. SW
(51.01383, -114.07227) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
32.3098 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2005-2007) ICD estimated from Google Maps linework.
Calgary, AB
Alberta
Canada 		Crescent Blvd. SW / 45th Ave. SW / 4th St. SW
(51.01302, -114.07132) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
25.5478 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
Syracuse, UT
Davis Co.
United States 		2019 W 1900 S
(41.08617, -112.06344) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
13.5029 		Other (At-Grade)
Single-Lane 		2006 Painted splitter islands with crosswalks that extend through the islands without a break in the painted islands. Year Completed estimated (2005-2008). ICD estimated from Google Maps linework.
Cambridge, MA
Middlesex Co.
United States 		Grove St. / Washington St. / Blanchard Rd.
(42.38637, -71.16042) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
3 Driveways
22.0537 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Omaha, NE
Douglas Co.
United States 		Butler Ave. / N 162nd St.
(41.30070, -96.16730) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.1229 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Omaha, NE
Douglas Co.
United States 		N 162nd St. / Grand Ave.
(41.30399, -96.16881) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
 Other (At-Grade)
Single-Lane 		2006
Omaha, NE
Douglas Co.
United States 		Grand Ave. / N 166th St.
(41.30237, -96.17353) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.3001 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Louisville, KY
Jefferson Co.
United States 		Stony Farm Dr. / Stara Way
(38.19654, -85.59588) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.3426 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Elkhorn, NE
Douglas Co.
United States 		N HWS Cleveland Blvd. / N 184th St. / Cuming St.
(41.26800, -96.20306) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.4986 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Elkhorn, NE
Douglas Co.
United States 		Indiana St. / N 184th St. / N 185th St.
(41.27003, -96.20517) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.2370 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Elkhorn, NE
Douglas Co.
United States 		Honeysuckle Dr. / N 188th St.
(41.27365, -96.21011) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.1333 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.