Roundabouts Database

30040 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
Carlsbad, CA
San Diego Co.
United States 		Legoland Dr. / Armada Dr.
(33.13229, -117.31660) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		1999 Unstriped circulatory roadway.
Phoenix, AZ
Maricopa Co.
United States 		S. Pointe Pkwy. W / S. Pointe Pkwy. E
(33.37649, -111.97210) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.8650 		Other (At-Grade)
Single-Lane 		1994 Before 1997. ICD estimated from Google Maps linework.
Douglasville, GA
Douglas Co.
United States 		SR 5 / SR 166
(33.61361, -84.83688) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.8602 		Other (At-Grade)
Single-Lane 		2007 Fatal crash November 24, 2011. 11861-05. ICD estimated from Google Maps linework.
(unincorporated), MD
Anne Arundel Co.
United States 		Arundel Beach Rd. / Leelyn Dr.
(39.07955, -76.54560) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.9594 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Brunswick, MD
Frederick Co.
United States 		MD 17 / A St. / B St. / Maryland Ave.
(39.31433, -77.62807) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
42.5054 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
De Pere, WI
Brown Co.
United States 		Scheuring Rd. (CTH F) / US 41 SB Ramps
(44.43050, -88.11402) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
56.3880 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2011 Series of 6 roundabouts. Opened September 2011.
Catonsville, MD
Baltimore Co.
United States 		MD 372 / Hilltop Rd. / Entrance to UMBC
(39.25733, -76.71964) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.1417 		Other (At-Grade)
Single-Lane 		1998 Functional Class: Collector ICD estimated from Google Maps linework.
Lisbon, MD
Howard Co.
United States 		MD 94 / Old Frederick Rd. (Lisbon North)
(39.34810, -77.06930) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.7839 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States 		MD 103 / MD 100 WB Ramps
(39.20846, -76.78294) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.3154 		Freeway Ramps (Grade-Separated)
Single-Lane 		1998 Opened November 1998. ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States 		MD 103 / MD 100 EB Ramps
(39.20733, -76.78243) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.5396 		Freeway Ramps (Grade-Separated)
Single-Lane 		1998 Opened November 1998. ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States 		Snowden River Pkwy. / MD 100 WB Ramps
(39.21233, -76.79544) 		Roundabout
Existing 		All-Way Yield
Metering Signal 		3 Approaches
0 Driveways
25.9105 		Freeway Ramps (Grade-Separated)
Single-Lane 		1998 Opened November 1998. Metering signal on Snowden River Pkwy approach. ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States 		MD 104 (Waterloo Rd.) / MD 100 WB Ramps
(39.22470, -76.80600) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		1999
Federalsburg, MD
Caroline Co.
United States 		MD 307 / MD 313 / MD 318
(38.68938, -75.78949) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.4247 		Other (At-Grade)
Single-Lane 		1999 Rural, installed for safety reasons Previously controlled by two-way stop ICD estimated from Google Maps linework.
Montpelier, VT
Washington Co.
United States 		Keck Circle (Main St. / Spring St.)
(44.26283, -72.57178) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.6594 		Other (At-Grade)
Single-Lane 		1995 Main Street Middle School located one block NE of roundabout. ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Trotter Rd. / South Wind Cir.
(39.20956, -76.91891) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.1353 		Other (At-Grade)
Single-Lane 		1997 Functional Class: Collector. Year Completed estimated (1993-2001). ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		Rice Rd. / I-70 WB Ramps / Sycamore Dr.
(39.03610, -95.62310) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.5293 		Freeway Ramps (Grade-Separated)
Single-Lane 		2000 Part of a major realignment of I-70 and K-4. Sycamore Drive is one way with two westbound lanes (into the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		Rice Rd. / I-70 EB Ramps / Cyprus Drive
(39.03190, -95.62320) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
52.8817 		Freeway Ramps (Grade-Separated)
Single-Lane 		2000 Part of a major realignment of I-70 and K-4. Cyprus Drive is One Way Eastbound (away from the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework.
Green Bay, WI
Brown Co.
United States 		W. Mason St. (STH 32-STH 54) / US 41 SB Ramps
(44.52418, -88.08284) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.9811 		Freeway Ramps (Grade-Separated)
Multilane (3+ Lane) 		2012 Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework.
Brattleboro, VT
Windham Co.
United States 		Rte 9 / Rte 5
(42.88500, -72.55670) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		1999 Adjacent to I-89. Heavy truck volume (>7%).
Green Bay, WI
Brown Co.
United States 		W. Mason St. (STH 32-STH 54) / US 41 NB Ramps
(44.52415, -88.08103) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
43.4266 		Freeway Ramps (Grade-Separated)
Multilane (3+ Lane) 		2012 Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework.
Lakewood, CO
Jefferson Co.
United States 		Arbutus Dr. / Red Rocks Community College
(39.71903, -105.14840) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.7465 		Other (At-Grade)
Single-Lane 		2001 Functional Class: Collector 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.
Cedar Lake Township, MN
Scott Co.
United States 		SH 13 (Langford Ave.) / CR 2 (260th St.)
(44.57259, -93.50546) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.9429 		Other (At-Grade)
Single-Lane 		2005 Rural location, intersection of two 55-mph facilities. Previous 2-way stop had 2 fatal crashes and 50 injury crashes in 5 years. Opened to traffic in September 2005. During 12 months after opening, 1 reported crash involving single motorcycle running off road. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Mount Rainier, MD
Prince Georges Co.
United States 		US 1 / 34th St. / Perry St.
(38.93647, -76.96074) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2001 Oval shaped. ICD = 135 ft x 115 ft.
Lutherville-Timonium, MD
Baltimore Co.
United States 		MD 139 (Charles St.) / Bellona Ave.
(39.41790, -76.62900) 		Roundabout
Removed 		All-Way Yield
None 		4 Approaches
0 Driveways
28.9560 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1999 Two-lane circulatory roadway across northern half.
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.
Decatur, GA
DeKalb Co.
United States 		N Decatur Rd. / Lullwater Rd.
(33.78744, -84.32914) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.4320 		Other (At-Grade)
Single-Lane 		2004
Durango, CO
La Plata Co.
United States 		Jenkins Ranch Rd. / Ophir Dr.
(37.28321, -107.85120) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
26.6075 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Huntsville, AL
Madison Co.
United States 		Old Monrovia Rd. / Providence Main St. / Indian Creek Rd.
(34.75765, -86.68776) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.3429 		Other (At-Grade)
Single-Lane 		2004 Single-lane with right-turn only lanes. Built as staged construction with potential to be multilane. ICD estimated from Google Maps linework.
Camp Verde, AZ
Yavapai Co.
United States 		Middle Verde / Cliff Castle
(34.60927, -111.86130) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.3535 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
De Pere, WI
Brown Co.
United States 		Grant St. (CTH EE) / Lawrence Dr.
(44.44511, -88.09367) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
29.8430 		Other (At-Grade)
Single-Lane 		2008 Opened September 30, 2008. ICD estimated from Google Maps linework.
Truckee, CA
Nevada Co.
United States 		Donner Pass Rd. / W. River St. / McIver Crossing
(39.32510, -120.19200) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.1077 		Other (At-Grade)
Single-Lane 		1998 Fatal crash. 11861-05. Functional Class: Arterial ICD estimated from Google Maps linework.
Durango, CO
La Plata Co.
United States 		Jenkins Ranch Rd. / Kennebec Dr.
(37.29216, -107.84010) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
23.7539 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Dawsonville, GA
Dawson Co.
United States 		SR 9E (Lumpkin Campground Rd.) / SR 318 (Dawson Forrest Rd.)
(34.35427, -84.05168) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2006
Oakwood, GA
Hall Co.
United States 		Landrum Education Dr. / Frontage Rd. / Mathis Dr.
(34.23434, -83.86434) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2007 Gainesville College.
Pearl, MS
Rankin Co.
United States 		MS 475 (Airport Rd.) / Old Brandon Rd.
(32.29057, -90.07133) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
34.3273 		Other (At-Grade)
Single-Lane 		1997 Use of paint to achieve (?) deflection. ICD estimated from Google Maps linework.
Gorham, ME
Cumberland Co.
United States 		US 202 / Rte. 4 / Rte. 237
(43.72846, -70.42525) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.0285 		Other (At-Grade)
Single-Lane 		1997 Previously controlled by two-way stop ICD estimated from Google Maps linework.
(unincorporated), MD
Prince Georges Co.
United States 		Ft. Washington Rd. / Swan Creek Rd.
(38.72498, -77.00491) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.1576 		Other (At-Grade)
Single-Lane 		1997 Fourth leg added. Year Completed estimated (before 2001). ICD estimated from Google Maps linework.
Bel Air, MD
Harford Co.
United States 		Tollgate Rd. / Marketplace Dr.
(39.52092, -76.35262) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.5602 		Other (At-Grade)
Single-Lane 		1996 Three leg, off-set roundabout - off-set due to lack of r/w on top side of Functional Class: Collector ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		SW Century Dr. / SW Colorado Ave. / SW Chandler Ave.
(44.04180, -121.33200) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
57.9120 		Other (At-Grade)
Single-Lane 		1999 Completed Fall 1999. One leg comes in at 60 degree angle. Right-turn bypass lane part of conceptual design but removed for final. First modern roundabout in Oregon.
Bellevue, WA
King Co.
United States 		W. Lake Sammamish Pkwy. SE / Lakemont Blvd. SE
(47.56776, -122.09980) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.4567 		Other (At-Grade)
Single-Lane 		1997 Revised August 2005. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		McWhinney Blvd. / Hahns Peak Dr. / Grays Peak Dr.
(40.41048, -105.01140) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
71.6280 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002
Eugene, OR
Lane Co.
United States 		Barger Dr. / Green Hill Rd.
(44.08470, -123.20830) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.6002 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		Monterey Way / Harvard Rd.
(38.96400, -95.28833) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
15.7869 		Other (At-Grade)
Single-Lane 		1999 Built as part of reconstrction of Monterey Way. Designed as part of City/State Safety Improvement Project. ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		West Campus Rd. / Jayhawk Blvd. / Crescent Rd.
(38.95905, -95.25105) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.7185 		Other (At-Grade)
Single-Lane 		2013 Original circle built c. 1945, rebuilt 2013 as part of reconstruction of Jayhawk Boulevard. Encircles Chi Omega fountain. Functional Class: Collector ICD estimated from Google Maps linework.
Coventry, CT
Tolland Co.
United States 		Daly Rd. / South St.
(41.76721, -72.33688) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.9424 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Fairmont, WV
Marion Co.
United States 		WV 273 (State St.) / Haymond St.
(39.47601, -80.13599) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8640 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 Detectable warning surfaces along entire length of narrow pedestrian ramp.
East Lansing, MI
Ingham Co.
United States 		Bogue St. / Shaw Ln.
(42.72575, -84.47185) 		Roundabout
Removed 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9600 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Roundabout built in 2000, removal date estimated (2013-2015).
Hartland, MI
Livingston Co.
United States 		Hartland Rd. / Rovey Dr.
(42.63682, -83.74883) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.6594 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Ottawa, ON
City of Ottawa
Canada 		Bayview Rd. / Slidell St. / Burnside Ave.
(45.40958, -75.72880) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5384 		Other (At-Grade)
Single-Lane 		2010 Functional Class: Collector ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Anderson Rd. / Alvarado Ave.
(38.56210, -121.75850) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.2149 		Other (At-Grade)
Single-Lane 		1997 Moderate to high pedestrian and bicycle volume. Located in residential area frequented by commuters to University of California at Davis. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		Old Meridian St. / Grand Blvd.
(39.97366, -86.14984) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
56.3880 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2008 ICD estimated from Google Maps linework.
Port Orchard, WA
Kitsap Co.
United States 		Mile Hill Dr. (Hwy 166) / Bethel Ave.
(47.53467, -122.62730) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.7045 		Other (At-Grade)
Single-Lane 		1998 Previously a Y Intersection. Opened June 1998. Previously controlled by two-way stop Functional Class: Arterial 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
50.2920 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2006 Painted spiral next to central island. Part of a series of 5 roundabouts.
Modesto, CA
Stanislaus Co.
United States 		La Loma / James St. / G St.
(37.64360, -120.98740) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
34.0452 		Other (At-Grade)
Single-Lane 		1997 Permanent installation with landscaping in place Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Clackamas, OR
Clackamas Co.
United States 		Monterey Ave. / Causey Ave. / William Otty Rd.
(45.44020, -122.55510) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.7102 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Montréal, QC
Montréal Region
Canada 		Ave. Marie-Curie / Blvd. Alfred Nobel
(45.48518, -73.76222) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.6801 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1998 Completed November 1998. Functional Class: Collector 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.
Abingdon, MD
Harford Co.
United States 		Tollgate Rd. / Montrose Way
(39.48198, -76.32751) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.5762 		Other (At-Grade)
Single-Lane 		2003 Elementary school and library to north, another school to south. Functional Class: Collector ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		West End Rd. / Spear Ave. / Saint Louis Rd.
(40.88910, -124.08210) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.0866 		Other (At-Grade)
Single-Lane 		1998 Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		Samoa Blvd. / Union St.
(40.86140, -124.07730) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.2273 		Other (At-Grade)
Single-Lane 		1999 Functional Class: Arterial ICD estimated from Google Maps linework.
Bel Air, MD
Harford Co.
United States 		Tollgate Rd. / Westover Ln. / Crisfield Dr.
(39.46859, -76.32162) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.7377 		Other (At-Grade)
Single-Lane 		2002 http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		Samoa Blvd. / Buttermilk Ln.
(40.85710, -124.07250) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.1329 		Other (At-Grade)
Single-Lane 		1999 Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		Guintoli Ln. / US 101 SB Ramps
(40.90400, -124.08920) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.7180 		Freeway Ramps (Grade-Separated)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Canmore, AB
Central Alberta
Canada 		Three Sisters Pkwy. / Stewart Creek Dr.
(51.05031, -115.31370) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.7860 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States 		Guintoli Ln. / US 101 NB Ramps
(40.90492, -124.08510) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.3015 		Freeway Ramps (Grade-Separated)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Durango, CO
La Plata Co.
United States 		Florida Rd. / Riverview Dr.
(37.28319, -107.86900) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4086 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Durango, CO
La Plata Co.
United States 		CR 238 / Fort Lewis Dr. / College Dr.
(37.27940, -107.85940) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.7643 		Other (At-Grade)
Single-Lane 		2007 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.
Visalia, CA
Tulare Co.
United States 		Houston Ave. / Santa Fe St. / NE 3rd Ave.
(36.34183, -119.28780) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
50.9874 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Durango, CO
La Plata Co.
United States 		Wilson Gulch Dr. / Three Springs Blvd.
(37.23339, -107.82310) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.8160 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2006
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.
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.
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