Roundabouts Database

29465 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
Flagstaff, AZ
Coconino Co.
United States 		S Woody Mountain Rd. / W Presidio Dr.
(35.18308, -111.69266) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2007 Year Completed estimated (2006-2007).
Allen, TX
Collin Co.
United States 		N Allen Dr. / St. Mary Dr.
(33.10674, -96.67113) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2006 .
Denton, TX
Denton Co.
United States 		Wheeler Ridge Dr. / Breton Dr.
(33.15462, -97.10275) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
54.8630 		Other (At-Grade)
Single-Lane 		2005 .
Kelowna, BC
Central Okanogan
Canada 		Swamp Rd. / Casorso Rd.
(49.84534, -119.46640) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.1050 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Kelowna, BC
Central Okanogan
Canada 		Benvoulin Rd. / Casorso Rd.
(49.84882, -119.46910) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.1952 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
North Cowichan, BC
Cowichan Valley Regional District
Canada 		Lakes Rd. / Beverley Rd.
(48.78476, -123.68480) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.9034 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Forest Hill, MD
Harford Co.
United States 		MD 23 / Commerce Rd.
(39.57390, -76.37067) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2008 On August 9, 2008 a new roundabout opened on Maryland Route 23 and an extended Commerce Drive in Forest Hill (Harford County), Maryland. It was built by a private developer to improve access to the Forest Hill Industrial Park by using Route 23, a limited access highway, rather than the current access road to Commerce Drive, Jarrettsville Road, which is primarily a residential route.
Cabazon, CA
Riverside Co.
United States 		Apache Trl. / I-10 EB Ramps
(33.92071, -116.80680) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only) 		3 Approaches
0 Driveways
54.5087 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2008 Opened July 11, 2008. http://www.pe.com/localnews/rivcounty/stories/PE_News_Local_S_circle21.46d763e.html. Railroad in close proximity. ICD estimated from Google Maps linework.
Pemberton, BC
Pemberton Valley
Canada 		Portage Rd. / Aspen Blvd.
(50.32201, -122.80508) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signal/Beacon 		3 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane
Sacramento, CA
Sacramento Co.
United States 		Silva Ranch Way / (unknown)
(38.47686, -121.52680) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
61.7094 		Other (At-Grade)
Single-Lane 		2007 Functional Class: Local ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		Coleman Ranch Way / (unknown)
(38.47739, -121.52340) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
139.3127 		Other (At-Grade)
Single-Lane 		2007 Functional Class: Local ICD estimated from Google Maps linework.
Casa Grande, AZ
Pinal Co.
United States 		N. Pottebaum Ave. / E. Manor Dr.
(32.88863, -111.72680) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
20.0582 		Other (At-Grade)
Single-Lane 		2007 Functional Class: Local ICD estimated from Google Maps linework.
Lihue, HI
Kauai Co.
United States 		Pikake St. / Kauila St. / Makaa St.
(21.96538, -159.37974) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2006
Clarksville, MD
Howard Co.
United States 		Brighton Dam Rd. / Ten Oaks Rd.
(39.20491, -76.95455) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
35.1680 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Deale, MD
Anne Arundel Co.
United States 		MD 256 / MD 258
(38.79327, -76.54586) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
34.4423 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Bel Air, MD
Harford Co.
United States 		Constant Friendship Blvd. / BJ's
(39.45546, -76.31870) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
29.5092 		Other (At-Grade)
Single-Lane 		1995 Functional Class: Local ICD estimated from Google Maps linework.
Hughesville, MD
Charles Co.
United States 		MD 231 / MD 5 NB Ramps
(38.53426, -76.77790) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
54.1863 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2005 ICD estimated from Google Maps linework.
Hughesville, MD
Charles Co.
United States 		MD 231 / MD 5 SB Ramps
(38.53381, -76.77969) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
58.8579 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2005 ICD estimated from Google Maps linework.
Annapolis Junction, MD
Anne Arundel Co.
United States 		Guilford Rd. / MD 32 WB Ramps
(39.12294, -76.78472) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.4293 		Freeway Ramps (Grade-Separated)
Single-Lane 		2002 Bypass lanes on all legs. ICD estimated from Google Maps linework.
University Place, WA
Pierce Co.
United States 		40th St. W / Drexler Dr. W
(47.22084, -122.53430) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
31.6351 		Other (At-Grade)
Single-Lane 		2006 Completed June 2006. ICD estimated from Google Maps linework.
Sammamish, WA
King Co.
United States 		Issaquah Pine Lake Rd. / SE 32nd Way
(47.57894, -122.02810) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
33.8378 		Other (At-Grade)
Single-Lane 		2005 Opened March 2005. ICD estimated from Google Maps linework.
Mount Vernon, WA
Skagit Co.
United States 		SR 538 (E College Way) / SR 9
(48.43002, -122.26460) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
1 Driveways
38.0389 		Other (At-Grade)
Single-Lane 		2007 Opened July 2007. Rural. Fatal crash December 22, 2011. 11861-05. ICD estimated from Google Maps linework.
North Bend, WA
King Co.
United States 		SR 202 / I-90 EB Ramps
(47.48782, -121.79730) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
41.9673 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2007 Opened November 2007. ICD estimated from Google Maps linework.
Olympia, WA
Thurston Co.
United States 		Evergreen Pkwy. NW / McCann Plaza
(47.06936, -122.97440) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
42.3006 		Other (At-Grade)
Single-Lane 		2005 Entrance to college. Opened November 2005. ICD estimated from Google Maps linework.
Woodinville, WA
King Co.
United States 		136th Ave. NE / Woodinville High School Entrance
(47.77161, -122.15860) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
25.6862 		Other (At-Grade)
Single-Lane 		2003 Opened October 2003. ICD estimated from Google Maps linework.
Waynesville, NC
Haywood Co.
United States 		Hyatt Creek Rd. / US 23-US 74 SB Ramps
(35.46494, -83.01322) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.1551 		Freeway Ramps (Grade-Separated)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Huntersville, NC
Mecklenburg Co.
United States 		Stumptown Rd. / Hugh Torance Pkwy.
(35.42301, -80.87071) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
58.3951 		Other (At-Grade)
Single-Lane 		2004 Built by developer. ICD estimated from Google Maps linework.
Asheville, NC
Buncombe Co.
United States 		Bleachery Blvd. / Wal-Mart parking lot entrance
(35.57649, -82.51315) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
36.9130 		Other (At-Grade)
Single-Lane 		2006 Built by developer - entrance to Wal-Mart parking lot. ICD estimated from Google Maps linework.
Lakewood, WA
Pierce Co.
United States 		Main St. SW / 5th Ave. SW
(47.16198, -122.51570) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.4220 		Other (At-Grade)
Single-Lane 		2002 Completed June 2002. ICD estimated from Google Maps linework.
Marysville, WA
Snohomish Co.
United States 		34th Ave. NE-Quil Ceda Blvd. / Tulalip Casino entrance
(48.08801, -122.18560) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
74.9927 		Other (At-Grade)
Single-Lane 		2001 Opened October 2001 as multilane roundabout. Modified April 2014 to reduce to single-lane roundabout with right-turn-only lanes. ICD estimated from Google Maps linework. 21442
Federal Way, WA
King Co.
United States 		S 317th St. / 28th Ave. S / I-5 HOV Access Ramps
(47.31781, -122.29760) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
40.4836 		Freeway Ramps (Grade-Separated)
Single-Lane 		2006 Opened February 2006. ICD estimated from Google Maps linework.
Federal Way, WA
King Co.
United States 		16th Ave. S / Todd Beamer High School entrance
(47.27650, -122.31360) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
29.9813 		Other (At-Grade)
Single-Lane 		2003 Opened September 2003. Access to high school. ICD estimated from Google Maps linework.
Federal Way, WA
King Co.
United States 		S 334th St. / 38th Ave. S
(47.30278, -122.28610) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.3466 		Other (At-Grade)
Single-Lane 		2006 Opened January 2006. ICD estimated from Google Maps linework.
Kill Devil Hills, NC
Dare Co.
United States 		Veterans Dr. / (high school)
(36.00637, -75.66875) 		Other
Existing 		Uncontrolled
None 		3 Approaches
0 Driveways
45.4086 		Other (At-Grade)
Single-Lane 		2003 Built for new high school. ICD estimated from Google Maps linework.
Kill Devil Hills, NC
Dare Co.
United States 		Veterans Dr. / 6th Ave.
(36.00818, -75.66412) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2003 Built for new high school.
New Bern, NC
Craven Co.
United States 		Broad St. / Front St.
(35.10776, -77.03563) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
27.3573 		Other (At-Grade)
Single-Lane 		2001 Part of enhancement project. ICD estimated from Google Maps linework.
Chapel Hill, NC
Durham Co.
United States 		Ephesus Church Rd. / Pope Rd.
(35.93135, -78.99929) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
27.0780 		Other (At-Grade)
Single-Lane 		2005 Built by developer. ICD estimated from Google Maps linework.
Durham, NC
Durham Co.
United States 		NC 751 / Old Erwin Rd.
(36.00068, -78.96225) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
27.0543 		Other (At-Grade)
Single-Lane 		2003 Spot safety project. Right-turn bypass lane. ICD estimated from Google Maps linework.
Wake Forest, NC
Wake Co.
United States 		South Ave. (NC 98-US 1 Alt) / S Main St.
(35.97893, -78.51203) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
21.2627 		Other (At-Grade)
Single-Lane 		2006 Moving Ahead project. ICD estimated from Google Maps linework.
Greensboro, NC
Guilford Co.
United States 		Bluford St. / Obemeyer St.
(36.07512, -79.77265) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
23.1675 		Other (At-Grade)
Single-Lane 		2005 North Carolina A&T University campus redevelopment. ICD estimated from Google Maps linework.
Southern Pines, NC
Moore Co.
United States 		S Knoll Rd. / Voit Gilmore Rd. / Felton Capei Ln.
(35.18869, -79.43085) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2005 At Pinecrest High School. Lane line extensions across exits.
Winston-Salem, NC
Forsyth Co.
United States 		Turfwood Dr. / Long Creek Dr.
(36.19996, -80.32156) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
29.8771 		Other (At-Grade)
Single-Lane 		2002 Built by developer. ICD estimated from Google Maps linework.
Charlotte, NC
Mecklenburg Co.
United States 		Moores Chapel Rd. / I-485 NB Ramp
(35.27366, -80.96478) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
37.0520 		Freeway Ramps (Grade-Separated)
Single-Lane 		2005 Interchange terminal. Fatal crash May 14, 2008. ICD estimated from Google Maps linework.
Charlotte, NC
Mecklenburg Co.
United States 		Moores Chapel Rd. / I-485 SB Ramp
(35.27376, -80.96779) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
37.0520 		Freeway Ramps (Grade-Separated)
Single-Lane 		2005 Interchange terminal. Fatal crash June 28, 2011. ICD estimated from Google Maps linework.
Marysville, WA
Snohomish Co.
United States 		34th Ave. NE / Quil Ceda Blvd.
(48.10637, -122.18610) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
35.0906 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 Opened May 2007. ICD estimated from Google Maps linework.
Hoffman Estates, IL
Cook Co.
United States 		Essex Dr. / Beacon Pointe Dr.
(42.06310, -88.23064) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.2604 		Other (At-Grade)
Single-Lane 		2007 Roundabout pictures available at Village Website http://www.hoffmanestates.org/government/departments-comdev-transportation.shtml#InterestandInfo Functional Class: Collector ICD estimated from Google Maps linework.
Evergreen, CO
Jefferson Co.
United States 		CR 65 / Bergen Pkwy.
(39.69101, -105.36050) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
1 Driveways
26.6520 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Englewood, CO
Arapahoe Co.
United States 		W. Sheri Ln. / Belleview Park
(39.62281, -105.00620) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
42.3174 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Erie, CO
Weld Co.
United States 		Lehigh Cir. / Bonanza Dr.
(40.03702, -105.04080) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
29.2612 		Other (At-Grade)
Single-Lane 		2006 Functional Class: Local ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		University of Colorado - Colorado Springs
(38.89215, -104.80190) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
36.2537 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Grand Junction, CO
Mesa Co.
United States 		Independent Ave. / Sams Club entrance
(39.08170, -108.58310) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
33.3754 		Other (At-Grade)
Single-Lane 		2003 Serves commercial development parking lot. ICD estimated from Google Maps linework.
Grand Junction, CO
Mesa Co.
United States 		Colorado Ave. / S. 2nd St.
(39.06636, -108.56950) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
25.9643 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		Monte Vista Dr. East / W. 22nd St.
(40.41451, -105.13180) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
24.5519 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		Monte Vista Dr. West / W. 22nd St.
(40.41449, -105.13290) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
26.3706 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Superior, CO
Boulder Co.
United States 		Rock Creek Pkwy. / 88th St.
(39.93764, -105.14780) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
47.6187 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 ICD estimated from Google Maps linework.
Durango, CO
La Plata Co.
United States 		Jenkins Ranch Rd. / Molas Dr.
(37.28099, -107.85550) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
28.5089 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Commerce City, CO
Adams Co.
United States 		Turnberry Pkwy. / Revere St.
(39.89062, -104.83800) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2005).
Commerce City, CO
Adams Co.
United States 		E 105th Ave. / Uvalda St.
(39.88673, -104.83520) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2003 Year Completed estimated (2002-2003).
Parker, CO
Douglas Co.
United States 		S. Cedar Gulch Ln. / (unknown)
(39.51289, -104.79120) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
35.9347 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Middletown, DE
New Castle Co.
United States 		Bunker Hill Rd. / Choptank Rd.
(39.45790, -75.74350) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
31.3525 		Other (At-Grade)
Single-Lane 		2007 Rural, redesigned in 2008 to better accommodate trucks and farm equipment. ICD estimated from Google Maps linework.
Knoxville, TN
Knox Co.
United States 		Concord Rd. / Northshore Dr.
(35.86081, -84.14137) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.9098 		Other (At-Grade)
Single-Lane 		2008 http://www.knoxnews.com/news/2008/feb/20/countys-first-roundabout-opened-concord-northshore/ ICD estimated from Google Maps linework.
Palo Alto, CA
Santa Clara Co.
United States 		Park Blvd. / Park Ave.
(37.43076, -122.14980) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
24.6585 		Other (At-Grade)
Single-Lane 		Functional Class: Local ICD estimated from Google Maps linework.
Roseville, CA
Placer Co.
United States 		Westhills Dr. / Morningstar Dr. / St. Basil Cir.
(38.76151, -121.35340) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.5951 		Other (At-Grade)
Single-Lane 		2001 Crosswalks adjacent to circle. ICD estimated from Google Maps linework.
Tumwater, WA
Thurston Co.
United States 		Littlerock Rd. SW / Odegard Rd. SW
(46.98985, -122.92650) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2010 June 2010.
Tumwater, WA
Thurston Co.
United States 		Littlerock Rd. SW / Kingswood Dr. SW
(46.99435, -122.92190) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2010 September 2010.
Walla Walla, WA
Walla Walla Co.
United States 		Myra Rd. / SR 12 EB Ramps
(46.06933, -118.36979) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 Raindrop shaped. July 2010. ICD estimated from Google Maps linework.
Walla Walla, WA
Walla Walla Co.
United States 		Myra Rd. / SR 12 WB Ramps
(46.07040, -118.36987) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2010 Raindrop shaped. July 2010.
Woodland, WA
Cowlitz Co.
United States 		Dike Access Rd. / I-5 NB Ramps
(45.92780, -122.75522) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 Raindrop shaped. December 2010.
Woodland, WA
Cowlitz Co.
United States 		Dike Access Rd. / I-5 SB Ramps
(45.92699, -122.75780) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
42.6720 		Freeway Ramps (Grade-Separated)
Single-Lane 		2010 December 2010.
Tumwater, WA
Thurston Co.
United States 		Littlerock Rd. SW / Tumwater Blvd. SW
(46.98283, -122.93544) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
45.7200 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2009 July 2009.
Spokane Valley, WA
Spokane Co.
United States 		E Montgomery Dr. / E Mansfield Ave.
(47.67753, -117.24790) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2009 April 2009.
Snoqualmie, WA
King Co.
United States 		North Bend Way / (Snoqualmie Casino entrance)
(47.51671, -121.84100) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2008 Through bypass lane on west leg. October 2008. ICD estimated from Google Maps linework.
Redmond, WA
King Co.
United States 		Eastridge Dr. NE / NE Cedar Park Crescent
(47.69141, -122.01690) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2012
Selah, WA
Yakima Co.
United States 		Gore Rd. / Selah Loop Rd.
(46.67943, -120.53061) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2008 August 2008. Replaced triangle intersection.
Redmond, WA
King Co.
United States 		152nd Ave. NE / NE 36th Pl. / NE 31st St.
(47.63828, -122.13550) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.3615 		Other (At-Grade)
Single-Lane 		2010 Near Microsoft campus. Moderate ped/bike volumes. ICD estimated from Google Maps linework.
Pleasanton, CA
Alameda Co.
United States 		Pleasanton Ave. / (park access #1)
(37.65266, -121.88980) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2008
Pleasanton, CA
Alameda Co.
United States 		Pleasanton Ave. / (park access #2)
(37.65350, -121.88784) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.5280 		Other (At-Grade)
Single-Lane 		2008 Painted splitter island on north leg.
Pleasanton, CA
Alameda Co.
United States 		Valley Ave. / Oak Vista Way
(37.65349, -121.89390) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
27.4216 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Roseville, CA
Placer Co.
United States 		Park Regency Dr. / Castlebridge Dr. / Hillingdon St.
(38.75455, -121.34680) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.5983 		Other (At-Grade)
Single-Lane 		2001 Crosswalks adjacent to circle. ICD estimated from Google Maps linework.
Sausalito, CA
Marin Co.
United States 		Conzelman Rd. / McCullough Rd.
(37.83361, -122.49400) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.2415 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Pleasanton, CA
Alameda Co.
United States 		Valley Ave. / (unknown)
(37.65670, -121.89670) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
28.3660 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Goleta, CA
Santa Barbara Co.
United States 		Lagoon Rd. / Mesa Rd.
(34.41491, -119.83930) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.4993 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 At the University of California Santa Barbara college campus. Right-turn bypass lane. Bus bays along circulatory roadway. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Davis, CA
Yolo Co.
United States 		Hutchison Dr. / Campbell Rd.
(38.53686, -121.77170) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.4343 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2010 Near University of California Davis college campus. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Golden Straw Ln. / Long Meadow Ct.
(39.21441, -76.81085) 		Traffic Calming Circle
Existing 		Other
None 		3 Approaches
0 Driveways
99.0123 		Other (At-Grade)
Single-Lane 		2000 Yield control only on west leg. ICD estimated from Google Maps linework.
Lynnwood, WA
Snohomish Co.
United States 		Ash Way / 18th Ave. SW
(47.85489, -122.25737) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.0520 		Other (At-Grade)
Single-Lane 		2009 October 2009.
Adamstown, MD
Frederick Co.
United States 		Mountville Rd. / Adams Common Dr.
(39.30643, -77.47158) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.6482 		Other (At-Grade)
Single-Lane 		2007 ICD estimated from Google Maps linework.
Branson, MO
Taney Co.
United States 		Forsythe Blvd. / Oak Creek Dr.
(36.64407, -93.25961) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.7888 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W 116th St. / W 14th Ave.
(39.95591, -86.18405) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.8735 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W 116th St. / Clay Center Rd.
(39.95604, -86.17889) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1974 		Other (At-Grade)
Single-Lane 		2008 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W Main St. / W 14th Ave.
(39.97756, -86.18355) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.3540 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		W Main St. / Clay Center Rd.
(39.97760, -86.17952) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
43.0148 		Other (At-Grade)
Single-Lane 		2009 ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		Towne Rd. / W 126th St.
(39.97018, -86.20264) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2007 Painted spirals next to central island.
Carmel, IN
Hamilton Co.
United States 		E 136th St. / Keystone Pkwy NB Ramps
(39.98598, -86.11404) 		Roundabout
Existing 		All-Way Yield
Metering Signal 		3 Approaches
0 Driveways
38.1000 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Part of tight diamond interchange with raindrop shape central island. Modified in 2016-2017 to add metering signals. Northbound ramp from Keystone Pkwy has a metering signal (PHB) that activates during peak hours when triggered by a long westbound queue. Eastbound approach has a metering signal (PHB) that activates during peak hours when triggered by a long northbound queue. 21442
Carmel, IN
Hamilton Co.
United States 		E 136th St. / Keystone Pkwy SB Ramps
(39.98581, -86.11488) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.1134 		Freeway Ramps (Grade-Separated)
Single-Lane 		2009 Part of tight diamond interchange with raindrop shape central island. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States 		E 126th St. / Keystone Pkwy. NB Ramps
(39.97122, -86.11223) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2009 Right-turn-only lane on south leg. Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E 126th St. / Keystone Pkwy. SB Ramps
(39.97122, -86.11327) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x1 max) 		2009 Right-turn-only lane on north leg. Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E Carmel Dr. / Keystone Pkwy. NB Ramps
(39.96208, -86.11313) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2010 Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E Carmel Dr. / Keystone Pkwy. SB Ramps
(39.96198, -86.11397) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.7200 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2010 Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E 116th St. / Keystone Pkwy. NB Ramps
(39.95663, -86.11353) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, 2x2 max) 		2009 Raindrop shaped. Part of tight diamond interchange.
Carmel, IN
Hamilton Co.
United States 		E 116th St. / Keystone Pkwy. SB Ramps
(39.95665, -86.11430) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2009 Raindrop shaped. Part of tight diamond interchange.