Roundabouts Database

28782 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
Lake Worth, FL
Palm Beach Co.
United States 		SR 802 (Lucerne Ave. - Lake Ave.) / A St.
(26.61670, -80.06500) 		Roundabout
Existing 		All-Way Yield
Pedestrian Signal (red-yellow-green to drivers) 		4 Approaches
0 Driveways
57.9120 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2002 ICD = 190 ft x 140 ft.
Modesto, CA
Stanislaus Co.
United States 		Chandon Dr. / Calero Dr.
(37.67642, -120.93380) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.4132 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Modesto, CA
Stanislaus Co.
United States 		Bowen Ave. / Fremont Ave.
(37.67470, -121.00260) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.9061 		Other (At-Grade)
Single-Lane 		2002 Previously controlled by twsc ICD estimated from Google Maps linework.
Astoria, OR
Clatsop Co.
United States 		US 101 / Hwy 202 (Nehalem Highway)
(46.18290, -123.86070) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.4797 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 Opened September 2002. First multilane roundabout on Oregon state highway system. ICD estimated from Google Maps linework.
Buffalo, NY
Erie Co.
United States 		Gates Circle (Delaware Ave. / Lafayette Ave.)
(42.92054, -78.86776) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
66.4699 		Other (At-Grade)
Unknown 		2002 Modified in 2002 to incorporate roundabout principles. ICD estimated from Google Maps linework. 21442
Lenexa, KS
Johnson Co.
United States 		Prairie Star Pkwy / Montecello Rd.
(38.95251, -94.84398) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
52.0123 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 Functional Class: Arterial ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States 		46th St. / US 75 Ramps
(39.12934, -95.71959) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
124.9680 		Freeway Ramps (Grade-Separated)
Single-Lane 		2002 Roundabout under structure as part of single-point interchange. Elliptical shaped. ICD = 410 ft x 270 ft. Original intersection was at grade. Completed November 2002.
Portland, OR
Multnomah Co.
United States 		SW Terwilliger Blvd. / SW Palater Rd.
(45.45290, -122.67660) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2002 Roundabout replaces existing Y-intersection, adds fourth leg to serve college law school. Includes driveway into roundabout serving two homes. Roundabout is on tilted plane with central island plane steeper than inscribed circle plane to manage cross slopes. Northeast leg (Palater Road) has 8-9 percent grade down into roundabout, then flattens using a short vertical curve to a zero percent crown at the top of the circulatory roadway. Maximum grade through the roundabout is 4 percent; maximum cross slope is -2 percent. First roundabout under City of Portland jurisdiction.
Bend, OR
Deschutes Co.
United States 		SW 14th St. / SW Century Dr. / SW Simpson Ave.
(44.04790, -121.33160) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.9036 		Other (At-Grade)
Single-Lane 		2002 Driveways located between crosswalk and circulatory roadway on both sides of west leg. ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW 14th St. / NW Galveston Ave.
(44.05660, -121.33180) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.8991 		Other (At-Grade)
Single-Lane 		2002 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
Goshen, CT
Litchfield Co.
United States 		Rte. 4 / Rte. 63
(41.83185, -73.22539) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.9080 		Other (At-Grade)
Single-Lane 		2002 Painted splitter islands.
Clive, IA
Dallas Co.
United States 		NW 156th St. / Boston Pkwy.
(41.62066, -93.83356) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.7487 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 ICD estimated from Google Maps linework.
Laurel, MS
Jones Co.
United States 		Central Ave. / Maple St.
(31.69108, -89.12855) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.4224 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Olathe, KS
Johnson Co.
United States 		Indian Wells Dr. / Spruce St.
(38.88568, -94.85022) 		Roundabout
Removed 		All-Way Yield
None 		2 Approaches
0 Driveways
44.6239 		Other (At-Grade)
Single-Lane 		2002 Replaced in 2015 with new roundabout in location shifted slightly to west. ICD estimated from Google Maps linework.
Mont-Tremblant, QC
Laurentides Region
Canada 		Montee Ryan / Chemin Duplessis
(46.20699, -74.59426) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.1960 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 Opened fall 2002.
Arlington, WA
Snohomish Co.
United States 		W. Division St. / N. West Ave.
(48.19864, -122.12800) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.8628 		Other (At-Grade)
Single-Lane 		2002 September 2002. ICD estimated from Google Maps linework.
Arlington, WA
Snohomish Co.
United States 		E. Division St. / N. Broadway St.
(48.19858, -122.12530) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.8824 		Other (At-Grade)
Single-Lane 		2002 September 2002. ICD estimated from Google Maps linework.
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.
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.
Mulberry, NC
Wilkes Co.
United States 		Yellowbanks Rd. / Haymeadow Rd.
(36.26457, -81.14713) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2002 Spot safety site.
University Place, WA
Pierce Co.
United States 		Cirque Dr. W / Alameda Ave. W / 56th St. W
(47.20639, -122.51600) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
54.3624 		Other (At-Grade)
Single-Lane 		2002 Completed December 2002. ICD estimated from Google Maps linework.
Saint Leonard, MD
Calvert Co.
United States 		Calvert Beach Rd. / Saint Leonard Rd.
(38.47316, -76.50607) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
25.2461 		Other (At-Grade)
Single-Lane 		2002 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.
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.
Grand Junction, CO
Mesa Co.
United States 		G Rd. / 25th Rd.
(39.10636, -108.58940) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
30.5834 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Brandon, MB
Westman Region
Canada 		34th St. / Willowdale Crescent
(49.83122, -99.98436) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.9788 		Other (At-Grade)
Single-Lane 		2002 Before 2004. ICD estimated from Google Maps linework.
Oromocto, NB
Sunbury
Canada 		Restigouche Rd. / Miramichi Rd.
(45.83573, -66.48306) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
64.9046 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Clearwater, FL
Pinellas Co.
United States 		Ridgewood St. / Richards Ave.
(27.97013, -82.76930) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		0 Approaches
0 Driveways
34.8091 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Clearwater, FL
Pinellas Co.
United States 		Ridgewood St. / Baker Ave.
(27.97012, -82.76842) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		0 Approaches
0 Driveways
48.5218 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Clearwater, FL
Pinellas Co.
United States 		Ridgewood St. / Casler Ave.
(27.97013, -82.76752) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		0 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		2002
Clearwater, FL
Pinellas Co.
United States 		Richards Ave. / Baker Ave. / Casler Ave.
(27.96847, -82.76841) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2002
Santa Maria, CA
Santa Barbara Co.
United States 		S. Bradley Rd. / E. McCoy Ln.
(34.91219, -120.42160) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
52.8868 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 No circulatory roadway striping. Functional Class: Arterial ICD estimated from Google Maps linework.
Escalon, CA
San Joaquin Co.
United States 		Riesling Way / California St.
(37.79671, -121.01110) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.8749 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Monroe, WA
Snohomish Co.
United States 		Country Crescent SE / County Crescent SE
(47.86547, -121.96140) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2002 July 2002.
Richland, WA
Benton Co.
United States 		Lee Blvd. / The Parkway
(46.27484, -119.27433) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.9080 		Other (At-Grade)
Single-Lane 		2002 No splitter islands on north and south legs. Year Completed estimated (1996-2003).
Rome, NY
Oneida Co.
United States 		SR 825 / Ellsworth Rd.
(43.21731, -75.41796) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
55.7044 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 Constructed in old air force base. ICD estimated from Google Maps linework.
North Providence, RI
Providence Co.
United States 		US 44 / Centerdale Bypass
(41.85703, -71.48295) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
30.2447 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Longmont, CO
Boulder Co.
United States 		Deerwood Dr. / Bluefield Ave.
(40.17346, -105.06460) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
26.4648 		Other (At-Grade)
Single-Lane 		2002 Functional Class: Local ICD estimated from Google Maps linework.
Petaluma, CA
Sonoma Co.
United States 		Corona Rd. / Sonoma Mountain Pkwy.
(38.26890, -122.65450) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
31.8812 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States 		W Riverwood Blvd. / Windrow Blvd.
(33.41749, -112.26690) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
23.9252 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Lincoln, NE
Lancaster Co.
United States 		S 33rd St. / Sheridan Blvd.
(40.78020, -96.67281) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.9836 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Sacramento, CA
Sacramento Co.
United States 		Northborough Dr. / Heritage Park Ln. / Rose Arbor Dr.
(38.68221, -121.51550) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
23.3081 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Viera, FL
Brevard Co.
United States 		Wickham Rd. / Lake Andrews Dr.
(28.22975, -80.72577) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.5091 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 Functional Class: Arterial ICD estimated from Google Maps linework.
Newberg, OR
Yamhill Co.
United States 		Brutscher St. / Hayes St.
(45.30378, -122.94090) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.9211 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Irvine, CA
Orange Co.
United States 		Sand Canyon Ave. / Shady Canyon Dr.
(33.65462, -117.78100) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
104.3859 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 ICD estimated from Google Maps linework.
Miami, FL
Miami-Dade Co.
United States 		SW 16th St. / University Dr.
(25.75435, -80.37009) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.1950 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 ICD estimated from Google Maps linework.
Mooresville, NC
Iredell Co.
United States 		Brawley School Rd. / The Point Dr.
(35.53482, -80.92054) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
83.5834 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 Between 1998 and 2003 ICD estimated from Google Maps linework.
Riverdale, UT
Weber Co.
United States 		River Park Dr. / Sams Club access
(41.17197, -112.00210) 		Roundabout
Existing 		All-Way Yield
Other 		3 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 Raised crosswalks.
Riverdale, UT
Weber Co.
United States 		River Park Dr. / 900 W
(41.17318, -111.99900) 		Roundabout
Existing 		All-Way Yield
Other 		3 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 Raised crosswalks.
Gainesville, VA
Prince William Co.
United States 		Turtle Point Dr. / Spyglass Hill Loop
(38.78095, -77.65189) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.6552 		Other (At-Grade)
Single-Lane 		2001 Functional Class: Local ICD estimated from Google Maps linework.
Lincoln, NE
Lancaster Co.
United States 		Fallbrook Blvd. / Tallgrass Pkwy
(40.87793, -96.73135) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
65.0188 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Lincoln, NE
Lancaster Co.
United States 		Fallbrook Blvd. / Stonebrook Pkwy
(40.87706, -96.72567) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
64.1166 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Lincoln, NE
Lancaster Co.
United States 		N 21st St. / Folkways Blvd.
(40.86681, -96.69003) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
17.1606 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Lincoln, NE
Lancaster Co.
United States 		N 49th St. / Francis St.
(40.83137, -96.65235) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
20.7845 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Lincoln, NE
Lancaster Co.
United States 		Densmore Park
(40.74437, -96.70332) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
20.8117 		Other (At-Grade)
Single-Lane 		2001 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.
Roseville, CA
Placer Co.
United States 		Park Regency Dr. / Hiawatha Dr. / Sharifa Way / Bottlebrush Cir.
(38.76105, -121.34870) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.2518 		Other (At-Grade)
Single-Lane 		2001 Crosswalks adjacent to circle. 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.
Santa Maria, CA
Santa Barbara Co.
United States 		S. College Dr. / Southside Pkwy.
(34.92111, -120.42530) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.0676 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 No circulatory roadway striping. Functional Class: Arterial ICD estimated from Google Maps linework.
Santa Maria, CA
Santa Barbara Co.
United States 		S. College Dr. / E. McCoy Ln.
(34.91648, -120.42510) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8427 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 No circulatory roadway striping. Fatal crash October 15, 2009. 11861-05. Functional Class: Arterial ICD estimated from Google Maps linework.
Santa Maria, CA
Santa Barbara Co.
United States 		S. Bradley Rd. / Southside Pkwy.
(34.92075, -120.42200) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
47.0056 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 No circulatory roadway striping. Functional Class: Arterial ICD estimated from Google Maps linework.
Cupertino, CA
Santa Clara Co.
United States 		Portal Ave. / Wheaton Dr.
(37.32445, -122.01964) 		Traffic Calming Circle
Existing 		All-Way Stop
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2001 Year Completed estimated (2000-2002).
Broomfield, CO
Adams Co.
United States 		Zang St. / (parking lot #1)
(39.92782, -105.13320) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
36.6350 		Other (At-Grade)
Single-Lane 		2001 Serves commercial development. ICD estimated from Google Maps linework.
Broomfield, CO
Adams Co.
United States 		Zang St. / (parking lot #2)
(39.92641, -105.13170) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
35.7199 		Other (At-Grade)
Single-Lane 		2001 Serves commercial development. 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.
Winnipeg, MB
Winnipeg Capital Region
Canada 		Waterfront Dr. / Bannatyne Ave.
(49.89712, -97.13358) 		Roundabout
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
34.6204 		Other (At-Grade)
Unknown 		2001 ICD estimated from Google Maps linework.
Winston-Salem, NC
Forsyth Co.
United States 		Westview Dr. / Buckingham Rd.
(36.09549, -80.28940) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2001 City project. Painted splitter islands.
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
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.
Covington, WA
King Co.
United States 		172nd Ave. SE / SE 270th Pl.
(47.35939, -122.11240) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.7885 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Dupont, WA
Thurston Co.
United States 		McNeil St. / Gaul Ave.
(47.09734, -122.66080) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
26.0174 		Other (At-Grade)
Single-Lane 		2001 Completed May 2001. ICD estimated from Google Maps linework.
Dupont, WA
Thurston Co.
United States 		McNeil St. / Marshall Cir.
(47.09618, -122.65520) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.8311 		Other (At-Grade)
Single-Lane 		2001 Completed May 2001. ICD estimated from Google Maps linework.
Conyers, GA
Rockdale Co.
United States 		Travis St. / Hardin St. / Okelly St.
(33.66432, -84.01964) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
22.8629 		Other (At-Grade)
Single-Lane 		2001 Year Completed estimated (1999-2002). ICD estimated from Google Maps linework.
Clive, IA
Dallas Co.
United States 		Berkshire Pkwy. / Sheridan Ave.
(41.61697, -93.84561) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.5370 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Cradlerock Way / Homespun Dr.
(39.19095, -76.83787) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
22.2158 		Other (At-Grade)
Single-Lane 		2001 Completed May 21, 2001. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		24th Pl. / Inverness Dr.
(38.94105, -95.29808) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.0814 		Other (At-Grade)
Single-Lane 		2001 Approved by Commission over neighborhood opposition. Was a 3 leg intersection prior to construction. Near Sunflower Elementary School and Southwest Junior High School. Functional Class: Collector ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		24th Pl. / Crossgate Dr.
(38.94130, -95.28875) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.9392 		Other (At-Grade)
Single-Lane 		2001 Planned in connection with extention of 24th Place Functional Class: Collector ICD estimated from Google Maps linework.
Loveland, CO
Larimer Co.
United States 		Plum Creek Dr. / Piney River Dr.
(40.41253, -105.01850) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.0994 		Other (At-Grade)
Single-Lane 		2001 Functional Class: Local ICD estimated from Google Maps linework.
Moses Lake, WA
Grant Co.
United States 		Yonezawa Blvd. / S. Division St. / W. Belmont Ave.
(47.10438, -119.27860) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.0857 		Other (At-Grade)
Single-Lane 		2001 Pedestrian crossing has z-shape, with exit closer to roundabout than entrance. Part of series of 3 roundabouts. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		SW Century Dr. / SW Mt. Washington Dr. / SW Reed Market Dr.
(44.03860, -121.33590) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
57.9120 		Other (At-Grade)
Single-Lane 		2001 Roundabout sized for ultimate conversion to double lane.
Paola, KS
Miami Co.
United States 		K-68 / Old Kansas City Rd. / Hedge Ln.
(38.62133, -94.85551) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
44.7895 		Other (At-Grade)
Single-Lane 		2001 First roundabout on rural, high-speed facility in Kansas. Functional Class: Arterial ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		Sunflower Park Rd / Inverness Dr
(38.93745, -95.29810) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
111.4785 		Other (At-Grade)
Single-Lane 		2001 Next to Sunflower Elementary School and Southwest Junior High School. Functional Class: Collector ICD estimated from Google Maps linework.
Monroe, WA
Snohomish Co.
United States 		SR 522 EB Ramps / 164th St. SE / Tester Rd.
(47.84863, -122.00580) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
60.9143 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 Completed August 2001. This project won the Washington State APWA 2001 Project of the Award and the ASCE Seattle Section 2001 Outstanding Project Award. The Project is documented in the Compendium of Papers for 2000 ITE District 6 Annual Meeting, San Diego, CA. Reconfiguration of two intersections into a roundabout. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Bayfield, CO
La Plata Co.
United States 		CR 501 / Bayfield Center Dr.
(37.23393, -107.60191) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2001 Bayfield Center Drive is a new roadway. Completed Fall 2001.
Olathe, KS
Johnson Co.
United States 		Sheridan Rd. / Ridgeview Rd. / Dennis Ave.
(38.87270, -94.79730) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.3160 		Other (At-Grade)
Single-Lane 		2001 Completed April 2001. ICD estimated from Google Maps linework.
Olathe, KS
Johnson Co.
United States 		Sheridan Rd. / Clairborne Rd.
(38.87020, -94.79250) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.3168 		Other (At-Grade)
Single-Lane 		2001 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
Ritchie, MD
Prince Georges Co.
United States 		Ritchie-Marlboro Rd. / I-95 SB Ramps
(38.86894, -76.84738) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
770.9968 		Freeway Ramps (Grade-Separated)
Multilane (3+ Lane) 		2001 Opening initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442
Ritchie, MD
Prince Georges Co.
United States 		Ritchie-Marlboro Rd. / I-95 NB Ramps
(38.86824, -76.84158) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
67.0560 		Freeway Ramps (Grade-Separated)
Multilane (3+ Lane) 		2001 Opened initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442
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.
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.
La Quinta, CA
Riverside Co.
United States 		Jefferson St. / Avenue 52
(33.67096, -116.26870) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
51.6860 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2001 RT bypass lanes on all legs. ICD estimated from Google Maps linework.
Rochester Hills, MI
Oakland Co.
United States 		Tienken Rd. / Sheldon Rd.
(42.69626, -83.12320) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
38.6224 		Other (At-Grade)
Single-Lane 		2001 Near Hart Middle School and Stoney Creek High School. Functional Class: Local ICD estimated from Google Maps linework.
Fort Collins, CO
Larimer Co.
United States 		Rigden Pkwy. / Custer Dr.
(40.54863, -105.02960) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.9307 		Other (At-Grade)
Single-Lane 		2001 Date estimated. Functional Class: Local ICD estimated from Google Maps linework.
Chattanooga, TN
Hamilton Co.
United States 		US 41 - US 76 - SR 8 (Westside Dr.) / 29th St.
(35.00944, -85.27164) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
21.5209 		Other (At-Grade)
Single-Lane 		2001 Completed September 26, 2001. The intersection is located at the western portal of the Bachman Tunnel, a two-lane tunnel through Missionary Ridge, connecting Chattanooga with the City of East Ridge, Tennessee. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Williston, VT
Chittenden Co.
United States 		Maple Tree Pl. / Sycamore Dr.
(44.44349, -73.10966) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.1697 		Other (At-Grade)
Single-Lane 		2001 Completed November 2001. Major shopping area, road part of the planned ring road around Taft Corner. Functional Class: Local ICD estimated from Google Maps linework.
Princeton, NJ
Mercer Co.
United States 		Faculty Rd. / Elm Dr.
(40.33888, -74.65523) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
28.2209 		Other (At-Grade)
Single-Lane 		2001 This roundabout is on University owned roads open to the public. There is a second roundabout similar in dimensions upstream on Elm Drive. Close to an at-grade rail crossing. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Springfield, OR
Lane Co.
United States 		58th St. / Thurston Rd.
(44.05320, -122.92640) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.7507 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Erwin, NY
Steuben Co.
United States 		Robert Dann Dr. / Science Center Rd.
(42.15936, -77.11082) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2001 Add-lane right-turn bypass lane on west leg.