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
Lincoln, RI
Providence Co.
United States 		(college entrance roadway) / (parking)
(41.89960, -71.45290) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown 		Community College of Rhode Island Flanagan Campus.
(unincorporated), WA
Spokane Co.
United States 		SR 902 (W Medical Lake Rd.) / Craig Rd.
(47.59464, -117.60751) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.7735 		Other (At-Grade)
Single-Lane 		2018 Compact roundabout (95' ICD). Open to traffic July 23, 2018. ICD estimated from Google Maps linework.
Gardnerville, NV
Douglas Co.
United States 		NV-88 / Centerville Ln.
(38.91043, -119.77916) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
21.3749 		Other (At-Grade)
Single-Lane 		2018 Compact roundabout. ICD estimated from Google Maps linework.
Vancouver, WA
Clark Co.
United States 		SR 500 (NE Fourth Plain Rd.) / NE182nd Ave.
(45.67192, -122.48864) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
26.8221 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2022 Compact roundabout. WSDOT project. Completed August 20, 2022. Colored apron with asphalt interior.
Glen Ellyn, IL
DuPage Co.
United States 		Crescent Blvd. / Crescent Ct. / Park Row
(41.87975, -88.05899) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.9936 		Other (At-Grade)
Single-Lane 		2015 Compact urban roundabout - T-intersection with fourth leg between top and stem of T. Providing a means for legal U-turns was an important factor in selection of a roundabout here.
Wetumpka, AL
Elmore Co.
United States 		Company St. / Orline St. / Spring St.
(32.53874, -86.20352) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 Company Street is one-way into roundabout on southwest leg; Orline Street is one-way out of the roundabout on west leg. Converted from uncontrolled triangle intersection with stop control on Spring St. https://satellites.pro/Wetumpka_map.Alabama_region.USA#32.538481,-86.203482,19 https://www.thewetumpkaherald.com/news/downtown-roundabout-sidewalks-project-set-to-begin-soon/article_4a1c0578-6fdd-11eb-b5f6-2b2d840f04e5.html
Portland, OR
Multnomah Co.
United States 		SE 13th Ave. / SE Salmon St.
(45.51434, -122.65264) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
17.5750 		Other (At-Grade)
Single-Lane 		1989 Completed 1/11/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 7th Ave. / NE Tillamook St. (W)
(45.53790, -122.65861) 		Traffic Calming Circle
Existing 		Unknown
None 		3 Approaches
0 Driveways
83.6552 		Other (At-Grade)
Single-Lane 		1992 Completed 1/9/1992. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 7th Ave. / NE Sacramento St.
(45.53955, -122.65862) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
121.2965 		Other (At-Grade)
Single-Lane 		1992 Completed 1/9/1992. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 7th Ave. / NE Russell St.
(45.54126, -122.65861) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
161.4450 		Other (At-Grade)
Single-Lane 		1992 Completed 1/9/1992. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 7th Ave. / NE Graham St.
(45.54296, -122.65859) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
161.4401 		Other (At-Grade)
Single-Lane 		1992 Completed 1/9/1992. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 7th Ave. / NE Cook St.
(45.54717, -122.65859) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
17.5647 		Other (At-Grade)
Single-Lane 		1992 Completed 1/9/1992. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 24th Ave. / Brazee St.
(45.54050, -122.64110) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		1989 Completed 10/10/1989.
Portland, OR
Multnomah Co.
United States 		NE 24th Ave. / Thompson St.
(45.53896, -122.64110) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
56.8845 		Other (At-Grade)
Single-Lane 		1989 Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 24th Ave. / Tillamook St.
(45.53741, -122.64110) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
56.0495 		Other (At-Grade)
Single-Lane 		1989 Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 21st Ave. / Thompson St.
(45.53898, -122.64420) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
34.2980 		Other (At-Grade)
Single-Lane 		1989 Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 21st Ave. / Brazee St.
(45.54051, -122.64420) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
86.9974 		Other (At-Grade)
Single-Lane 		1989 Completed 10/10/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE US Grant Pl. / NE 35th Ave.
(45.53779, -122.62841) 		Traffic Calming Circle
Existing 		Unknown
None 		3 Approaches
0 Driveways
14.2214 		Other (At-Grade)
Single-Lane 		1989 Completed 10/11/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE US Grant Pl. / NE 36th Ave.
(45.53777, -122.62601) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
40.1546 		Other (At-Grade)
Single-Lane 		1989 Completed 10/11/1989. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 37th Ave. / Brazee St.
(45.54057, -122.62500) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
119.6213 		Other (At-Grade)
Single-Lane 		1987 Completed 10/16/1987. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 30th Ave. / SE Gladstone St.
(45.49337, -122.63466) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
32.6514 		Other (At-Grade)
Single-Lane 		1996 Completed 10/17/1996. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 34th Ave. / SE Gladstone St.
(45.49335, -122.62978) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
61.9539 		Other (At-Grade)
Single-Lane 		1996 Completed 10/17/1996. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE Imperial Ave. / NE Multnomah St.
(45.53154, -122.62719) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
74.4616 		Other (At-Grade)
Single-Lane 		1987 Completed 10/22/1987. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 58th Ave. / SE Woodward St.
(45.50140, -122.60310) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		1988 Completed 10/27/1998.
Portland, OR
Multnomah Co.
United States 		SE 56th Ave. / SE Woodward St.
(45.50140, -122.60500) 		Traffic Calming Circle
Existing 		Unknown
None 		3 Approaches
0 Driveways
43.5289 		Other (At-Grade)
Single-Lane 		1988 Completed 10/27/1998. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE Holman St. / NE 37th Ave.
(45.56826, -122.62557) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane 		1988 Completed 10/28/1988.
Portland, OR
Multnomah Co.
United States 		NE Holman St. / NE 41st St.
(45.56858, -122.62172) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
81.9374 		Other (At-Grade)
Single-Lane 		1988 Completed 10/28/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE Holman St. / NE 34th Ave.
(45.56826, -122.62965) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
159.6952 		Other (At-Grade)
Single-Lane 		1988 Completed 10/28/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 36th Ave. / SE Bybee Blvd.
(45.47241, -122.62621) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
56.9518 		Other (At-Grade)
Single-Lane 		1992 Completed 10/6/1992. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE Bybee Blvd. / (SE 37th Ave.)
(45.47243, -122.62440) 		Traffic Calming Circle
Existing 		Uncontrolled
None 		2 Approaches
0 Driveways
20.1003 		Other (At-Grade)
Single-Lane 		1992 Completed 10/6/1992. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 16th Ave. / SE Ash St.
(45.52148, -122.64956) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
22.5935 		Other (At-Grade)
Single-Lane 		1988 Completed 10/7/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 37th Ave. / Thompson St.
(45.53904, -122.62500) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
94.5285 		Other (At-Grade)
Single-Lane 		1987 Completed 11/16/1987. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE Clackamas St. / NE 53rd Ave.
(45.53300, -122.60880) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
30.1185 		Other (At-Grade)
Single-Lane 		1988 Completed 11/3/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 53rd Ave. / NE Hassalo St.
(45.53048, -122.60880) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
35.1398 		Other (At-Grade)
Single-Lane 		1988 Completed 11/3/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE Ladd Ave. / SE Lavender St.
(45.50686, -122.64744) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
24.2734 		Other (At-Grade)
Single-Lane 		1983 Completed 11/8/1983. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE Ladd Ave. / SE Palm St.
(45.51025, -122.65144) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
40.1743 		Other (At-Grade)
Single-Lane 		1993 Completed 11/8/1993. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE Fremont Dr. / NE Dyer St.
(45.54603, -122.57509) 		Traffic Calming Circle
Existing 		Unknown
None 		3 Approaches
0 Driveways
29.2751 		Other (At-Grade)
Single-Lane 		1986 Completed 12/2/1986. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE Fremont Dr. / NE 86th Ave.
(45.54567, -122.57478) 		Traffic Calming Circle
Existing 		Unknown
None 		3 Approaches
0 Driveways
25.0931 		Other (At-Grade)
Single-Lane 		1986 Completed 12/2/1986. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE Fremont Dr. / NE Duddleson St.
(45.54667, -122.57574) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
33.4569 		Other (At-Grade)
Single-Lane 		1986 Completed 12/2/1986. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 37th Ave. / Morris St. / Wisteria St.
(45.54467, -122.62500) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
16.7290 		Other (At-Grade)
Single-Lane 		1986 Completed 12/23/1986. ICD estimated from Google Maps linework.
Fruita, CO
Mesa Co.
United States 		Aspen Ave. / Mesa St. (Park Square)
(39.15884, -108.73360) 		Other
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
77.7908 		Other (At-Grade)
Unknown 		Completed 1940? ICD estimated from Google Maps linework.
Sunriver, OR
Deschutes Co.
United States 		Circle #1
(43.87218, -121.43960) 		Other
Existing 		Unknown
None 		3 Approaches
0 Driveways
80.9318 		Other (At-Grade)
Single-Lane 		1968 Completed 1968? Functional Class: Collector ICD estimated from Google Maps linework.
Sunriver, OR
Deschutes Co.
United States 		Circle #2
(43.87863, -121.43480) 		Other
Existing 		Unknown
None 		4 Approaches
0 Driveways
81.7839 		Other (At-Grade)
Single-Lane 		1968 Completed 1968? Functional Class: Collector ICD estimated from Google Maps linework.
Sunriver, OR
Deschutes Co.
United States 		Circle #3
(43.88271, -121.43980) 		Other
Existing 		Unknown
None 		4 Approaches
0 Driveways
93.8299 		Other (At-Grade)
Single-Lane 		1968 Completed 1968? Functional Class: Collector ICD estimated from Google Maps linework.
Sunriver, OR
Deschutes Co.
United States 		Circle #4
(43.89000, -121.43850) 		Other
Existing 		Unknown
None 		4 Approaches
0 Driveways
84.3505 		Other (At-Grade)
Single-Lane 		1968 Completed 1968? Functional Class: Collector ICD estimated from Google Maps linework.
Sunriver, OR
Deschutes Co.
United States 		Circle #5
(43.89635, -121.44420) 		Other
Existing 		Unknown
None 		4 Approaches
0 Driveways
61.1046 		Other (At-Grade)
Single-Lane 		1968 Completed 1968? Functional Class: Collector ICD estimated from Google Maps linework.
Sunriver, OR
Deschutes Co.
United States 		Circle #6
(43.90435, -121.43830) 		Other
Existing 		Unknown
None 		4 Approaches
0 Driveways
79.1671 		Other (At-Grade)
Single-Lane 		1968 Completed 1968? Functional Class: Collector ICD estimated from Google Maps linework.
Sunriver, OR
Deschutes Co.
United States 		Circle #7
(43.91307, -121.43810) 		Other
Existing 		Unknown
None 		3 Approaches
0 Driveways
69.6913 		Other (At-Grade)
Single-Lane 		1968 Completed 1968? Functional Class: Collector ICD estimated from Google Maps linework.
Sunriver, OR
Deschutes Co.
United States 		Circle #9
(43.90348, -121.42740) 		Other
Existing 		Unknown
None 		0 Approaches
0 Driveways
84.3314 		Other (At-Grade)
Single-Lane 		Completed 1968? Functional Class: Collector ICD estimated from Google Maps linework.
Sunriver, OR
Deschutes Co.
United States 		Circle #10
(43.89851, -121.42340) 		Other
Existing 		Unknown
None 		0 Approaches
0 Driveways
86.0596 		Other (At-Grade)
Single-Lane 		Completed 1968? Functional Class: Collector ICD estimated from Google Maps linework.
Sunriver, OR
Deschutes Co.
United States 		Circle #11
(43.89212, -121.42430) 		Other
Existing 		Unknown
None 		0 Approaches
0 Driveways
82.6261 		Other (At-Grade)
Single-Lane 		Completed 1968? Functional Class: Collector ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 27th Ave. / SE Salmon St.
(45.51429, -122.63812) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
29.2916 		Other (At-Grade)
Single-Lane 		1982 Completed 2/16/1982. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 16th Ave. / SE Salmon St.
(45.51435, -122.64961) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
Unknown 		4 Approaches
0 Driveways
15.0642 		Other (At-Grade)
Single-Lane 		1982 Completed 2/18/1982. ICD estimated from Google Maps linework.
Varberg, Halland County
Varbergs kommun
Sweden 		Västkustvägen / Hobbyvägen
(57.08522, 12.27299) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		2005 Completed 2005 or earlier
Varberg, Halland County
Varbergs kommun
Sweden 		Marmorgatan / Brearedsvägen / Täljstensgatan
(57.08555, 12.27473) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2005 Completed 2005 or earlier.
London, ON
Middlesex
Canada 		Raleigh Blvd. / Tillmann Rd.
(42.93469, -81.30829) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
110.0000 		Other (At-Grade)
Single-Lane 		2010 completed 2010 based on Google historical aerials
(unincorporated), CA
Sonoma Co.
United States 		Arnold Dr. / Agua Caliente Rd.
(38.32045, -122.50220) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.8586 		Other (At-Grade)
Single-Lane 		2013 Completed 2013. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Manhattan, KS
Riley Co.
United States 		Kimball Ave. / Grand Mere Pkwy.
(39.20168, -96.63786) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.3931 		Other (At-Grade)
Single-Lane 		2000 Completed 3/2000. Built as part of new Colbert Hills Golf Course. Fatal crash January 31, 2010. 11861-05. Functional Class: Collector ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 30th Ave. / SE Grant St. (W)
(45.50679, -122.63472) 		Traffic Calming Circle
Existing 		Unknown
None 		3 Approaches
0 Driveways
14.2293 		Other (At-Grade)
Single-Lane 		1990 Completed 4/16/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 30th Ave. / SE Grant St. (E)
(45.50726, -122.63473) 		Traffic Calming Circle
Existing 		Unknown
None 		3 Approaches
0 Driveways
109.6480 		Other (At-Grade)
Single-Lane 		1990 Completed 4/16/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 46th Ave. / SE Lincoln St.
(45.50802, -122.61510) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
35.1539 		Other (At-Grade)
Single-Lane 		1990 Completed 4/23/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 30th Ave. / SE Caruthers St.
(45.50550, -122.63470) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
78.6812 		Other (At-Grade)
Single-Lane 		1990 Completed 4/23/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 43rd Ave. / SE Lincoln St.
(45.50799, -122.61810) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
22.5989 		Other (At-Grade)
Single-Lane 		1990 Completed 4/23/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 51st Ave. / SE Lincoln St.
(45.50803, -122.61000) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
15.0659 		Other (At-Grade)
Single-Lane 		1990 Completed 4/23/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 37th Ave. / SE Lincoln St.
(45.50806, -122.62570) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
15.0659 		Other (At-Grade)
Single-Lane 		1990 Completed 4/25/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 32nd Ave. / SE Lincoln St.
(45.50825, -122.63270) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
12.5549 		Other (At-Grade)
Single-Lane 		1990 Completed 4/25/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 45th Ave. / SE Clinton St.
(45.50336, -122.61610) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
87.0549 		Other (At-Grade)
Single-Lane 		1990 Completed 4/25/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 47th Ave. / SE Clinton St.
(45.50336, -122.61400) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
32.6456 		Other (At-Grade)
Single-Lane 		1990 Completed 4/25/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SW 47th Dr. / SW 43rd Ave.
(45.49245, -122.72111) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
54.4198 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2007 Completed 4/29/2007. Painted but unraised central island. No splitter islands. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 55th Ave. (N) / SE Lincoln St.
(45.50806, -122.60650) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		1990 Completed 5/14/1990.
Portland, OR
Multnomah Co.
United States 		SE 55th Ave. (S) / SE Lincoln St.
(45.50804, -122.60610) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		1990 Completed 5/14/1990.
Portland, OR
Multnomah Co.
United States 		SE 41st Ave. / SE Harrison St.
(45.50878, -122.62020) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
80.3506 		Other (At-Grade)
Single-Lane 		1990 Completed 5/30/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 58th Ave. (S) / SE Lincoln St.
(45.50805, -122.60380) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
104.6245 		Other (At-Grade)
Single-Lane 		1990 Completed 5/8/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 31st Ave. / SE Clinton St.
(45.50354, -122.63360) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
14.2301 		Other (At-Grade)
Single-Lane 		1990 Completed 6/22/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 23rd Ave. / SE Clinton St.
(45.50339, -122.64260) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
31.8085 		Other (At-Grade)
Single-Lane 		1990 Completed 6/22/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 36th Ave. / SE Clinton St.
(45.50337, -122.62630) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
40.1792 		Other (At-Grade)
Single-Lane 		1990 Completed 6/22/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 14th Ave. / SE Main St.
(45.51365, -122.65165) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
15.9013 		Other (At-Grade)
Single-Lane 		1988 Completed 9/12/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 14th Ave. / SE Taylor St.
(45.51507, -122.65166) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
17.5747 		Other (At-Grade)
Single-Lane 		1988 Completed 9/12/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 14th Ave. / SE Pine St.
(45.52077, -122.65158) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
15.0625 		Other (At-Grade)
Single-Lane 		1988 Completed 9/12/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 37th Ave. / SE Harrison St.
(45.50879, -122.62572) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
80.3506 		Other (At-Grade)
Single-Lane 		1990 Completed 9/14/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 47th Ave. / NE Brazee St.
(45.54056, -122.61496) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
34.2970 		Other (At-Grade)
Single-Lane 		1990 Completed 9/25/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NE 47th Ave. / NE Thompson St.
(45.53903, -122.61496) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
18.4038 		Other (At-Grade)
Single-Lane 		1990 Completed 9/25/1990. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NW 26th Ave. / NW Raleigh St.
(45.53397, -122.70479) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
19.2420 		Other (At-Grade)
Single-Lane 		1988 Completed 9/30/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NW 27th Ave. / NW Raleigh St.
(45.53395, -122.70680) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
10.0393 		Other (At-Grade)
Single-Lane 		1988 Completed 9/30/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NW 25th Ave. / NW Overton St.
(45.53190, -122.70270) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
44.3420 		Other (At-Grade)
Single-Lane 		1988 Completed 9/30/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NW 25th Ave. / NW Marshall St.
(45.53040, -122.70270) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
62.7498 		Other (At-Grade)
Single-Lane 		1988 Completed 9/30/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		NW 25th Ave. / NW Quimby St.
(45.53328, -122.70277) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
0 Driveways
15.8958 		Other (At-Grade)
Single-Lane 		1988 Completed 9/30/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 34th Ave. / SE Bybee Blvd.
(45.47319, -122.62826) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
81.2389 		Other (At-Grade)
Single-Lane 		1992 Completed 9/30/1992. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 15th Ave. / SE Oak St.
(45.52006, -122.65057) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
23.4309 		Other (At-Grade)
Single-Lane 		1988 Completed 9/6/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 15th Ave. / SE Alder St.
(45.51792, -122.65058) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
15.9001 		Other (At-Grade)
Single-Lane 		1988 Completed 9/7/1988. ICD estimated from Google Maps linework.
Portland, OR
Multnomah Co.
United States 		SE 13th Ave. / SE Madison St.
(45.51294, -122.65266) 		Traffic Calming Circle
Existing 		Unknown
None 		4 Approaches
0 Driveways
12.5539 		Other (At-Grade)
Single-Lane 		1988 Completed 9/8/1988. ICD estimated from Google Maps linework.
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.
Oskaloosa, IA
Mahaska Co.
United States 		Hwy 432 / Old Hwy 163 / Pella Ave. / Orchard Ave.
(41.30376, -92.66716) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.8882 		Other (At-Grade)
Single-Lane 		2004 Completed April 2004. Site has sunken hole in central island with tunnels for bike path that passes under circulatory roadway. Experienced two single-vehicle crashes into sunken central island (alcohol-related). ICD estimated from Google Maps linework.
Columbus, GA
Muscogee Co.
United States 		Wellington Trace / Wellington Way
(32.57888, -84.90186) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.2817 		Other (At-Grade)
Single-Lane 		2005 Completed April 2005. Functional Class: Local ICD estimated from Google Maps linework.
Columbus, GA
Muscogee Co.
United States 		Antietam Dr. / (apartment entrance)
(32.42582, -84.91289) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
22.1786 		Other (At-Grade)
Single-Lane 		2008 Completed April 2008. Functional Class: Collector ICD estimated from Google Maps linework.
Columbus, GA
Muscogee Co.
United States 		Antietam Dr. / Lexington Lake Dr.
(32.42737, -84.91043) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
25.2025 		Other (At-Grade)
Single-Lane 		2010 Completed April 2010. Functional Class: Collector ICD estimated from Google Maps linework.
Napa, CA
Napa Co.
United States 		1st St. / SR 29 NB Ramps
(38.29884, -122.30117) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
31.8681 		Freeway Ramps (Grade-Separated)
Unknown 		2020 Completed April 2020. ICD estimated from Google Maps linework.
Napa, CA
Napa Co.
United States 		1st St. / California Blvd.
(38.29823, -122.30024) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
39.3668 		Other (At-Grade)
Unknown 		2020 Completed April 2020. ICD estimated from Google Maps linework.
Napa, CA
Napa Co.
United States 		California Blvd. / 2nd St.
(38.29732, -122.30025) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
31.8687 		Other (At-Grade)
Unknown 		2020 Completed April 2020. ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States 		Golden Straw Ln. / Davis Rd.
(39.21597, -76.81084) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-lane w/ Traversable Central Island 		2000 Completed April 28, 2000. Pedestrian ramps into circulatory roadway.