Roundabouts Database

29616 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
Oxford, MS
Lafayette Co.
United States 		S Lamar Blvd. / Van Buren Ave. / E Jackson Ave.
(34.36641, -89.51870) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		1900 Courthouse with pedestrian access and parking around central island. Year Completed estimated.
New York, NY
Manhattan Co.
United States 		Columbus Circle (7th Ave. / Broadway / Central Park West / Central Park South)
(40.76808, -73.98187) 		Signalized Roundabout/Circle
Existing 		Signal
None 		5 Approaches
0 Driveways
123.0168 		Other (At-Grade)
Multilane (3+ Lane) 		1905 ICD estimated from Google Maps linework.
Grand Falls-Windsor, NL
Newfoundland and Labrador
Canada 		High St. / Mill Rd. / Church Rd. / Cabot Rd.
(48.92798, -55.65984) 		Other
Existing 		Other
Unknown 		4 Approaches
0 Driveways
28.2486 		Other (At-Grade)
Single-Lane 		1909 Mill St approach has Yield sign; other approaches have no control signage.(streetview) Built in early days of city, c. 1909. Beacon, known as "the Dummy", in center island. https://www.tac-atc.ca/sites/default/files/conf_papers/macdonaldm_and_allairef_-_the_evolution_of_roundabouts_in_nl.pdf ICD estimated from Google Maps linework.
Monticello, FL
Jefferson Co.
United States 		10 Court House Circle
(30.54514, -83.87016) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
63.7726 		Other (At-Grade)
Single-Lane 		1910 Courthouse in central island with pedestrian access. ICD estimated from Google Maps linework.
Houston, TX
Harris Co.
United States 		Main St. / Montrose Blvd.
(29.72404, -95.39096) 		Other
Existing 		Other
Unknown 		0 Approaches
0 Driveways
97.5360 		Other (At-Grade)
Multilane (3+ Lane) 		1916 Traffic Circle surveyed as part of 1916 plan for Hermann Park. Paved 1924. Some stop controlled, some free flow movements.
Houston, TX
Harris Co.
United States 		Hermann Circle
(29.72156, -95.39095) 		Other
Existing 		Other
Unknown 		0 Approaches
0 Driveways
106.6800 		Other (At-Grade)
Multilane (3+ Lane) 		1916 Traffic Circle surveyed as part of 1916 plan for Hermann Park. Paved 1924. Some stop controlled, some free flow movements.
Kingsport, TN
Sullivan Co.
United States 		Sullivan St. / Broad St. / Watauga St. / Holston St.
(36.54914, -82.55837) 		Other
Existing 		All-Way Yield
Unknown 		6 Approaches
0 Driveways
30.7027 		Other (At-Grade)
Single-Lane 		1917 Very early traffic circle. ICD estimated from Google Maps linework.
Washington, IL
Tazewell Co.
United States 		Washington Square
(40.70341, -89.40659) 		Other
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		1920 Pedestrian access to central island; parking along circulatory roadway.
Anton, TX
Hockley Co.
United States 		Main Ave. / E 4th St.
(33.81092, -102.16325) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
109.7277 		Other (At-Grade)
Single-Lane 		1924 Buildings and parking in central island.
Lincoln, NE
Lancaster Co.
United States 		E Pershing Rd. / Kings Hwy.
(40.78010, -96.69289) 		Other
Existing 		Uncontrolled
None 		3 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		1926
Lincoln, NE
Lancaster Co.
United States 		Kings Hwy. / Grimsby Ln.
(40.78011, -96.69413) 		Other
Existing 		Uncontrolled
None 		3 Approaches
0 Driveways
25.9080 		Other (At-Grade)
Single-Lane 		1926
Lincoln, NE
Lancaster Co.
United States 		S Pershing Rd. / Grimsby Ln.
(40.77786, -96.69414) 		Other
Existing 		Uncontrolled
None 		3 Approaches
0 Driveways
24.9936 		Other (At-Grade)
Single-Lane 		1926
Lincoln, NE
Lancaster Co.
United States 		S Pershing Rd. / E Pershing Rd.
(40.77781, -96.69291) 		Other
Existing 		Uncontrolled
None 		2 Approaches
2 Driveways
25.6032 		Other (At-Grade)
Single-Lane 		1926
Fort Worth, TX
Tarrant Co.
United States 		Bluebonnet Circle [W Biddson St. / Park Ridge Blvd. / S University Dr.]
(32.69902, -97.36044) 		Other
Existing 		Unknown
Unknown 		6 Approaches
0 Driveways
141.7320 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1929 .
Durham, NC
Durham Co.
United States 		Chapel Dr. / Campus Dr. / Flowers Dr. / Wannamaker Dr.
(35.99900, -78.93405) 		Other
Existing 		All-Way Stop
Unknown 		5 Approaches
0 Driveways
35.7510 		Other (At-Grade)
Single-Lane 		1930 On campus of Duke University. ICD estimated from Google Maps linework.
Bakersfield, CA
Kern Co.
United States 		Garces Circle (Golden State Ave. / Chester Ave. / 30th St.)
(35.38691, -119.01878) 		Rotary
Existing 		Other
None 		5 Approaches
0 Driveways
98.3425 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1935 Four of the approaches have yield-control. One has a stop sign. SR 204 is on a grade separation above the traffic circle. ICD estimated from Google Maps linework.
Manchester, NH
Hillsborough Co.
United States 		Londonderry Turnpike / Candia Rd. / Manchester Rd.
(43.00400, -71.39258) 		Rotary
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
76.2000 		Other (At-Grade)
Single-Lane 		1940 Pedestrian access to central island.
Epsom, NH
Merrimack Co.
United States 		US 4-US 202 (Dover Rd.) / Rte 28 (Suncock Valley Hwy.)
(43.22784, -71.36053) 		Rotary
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
91.4400 		Other (At-Grade)
Single-Lane 		1940 Elliptical shaped. ICD = 300 ft x 260 ft.
Pasadena, TX
Harris Co.
United States 		Washburn Tunnel / Richey St. / Red Bluff Rd.
(29.71813, -95.21172) 		Rotary
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
140.2080 		Other (At-Grade)
Unknown 		1950 Southeast approach was intended to be an extension of N Main Street, but was never completed.
Pasadena, TX
Harris Co.
United States 		Washburn Tunnel / Clinton Dr.
(29.73277, -95.21194) 		Rotary
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
140.2080 		Other (At-Grade)
Unknown 		1950 .
San Francisco, CA
San Francisco Co.
United States 		Juan Bautista Circle
(37.71804, -122.47795) 		Other
Existing 		All-Way Stop
Unknown 		7 Approaches
0 Driveways
120.9281 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
Los Angeles, CA
Los Angeles Co.
United States 		S Orange Grove Ave. / S Ogden Dr.
(34.06618, -118.35985) 		Other
Existing 		All-Way Stop
Unknown 		4 Approaches
0 Driveways
23.7449 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Grijalva Dr. / Gonzalez Dr.
(37.71638, -122.47919) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
21.7298 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Bucareli Dr. / Gonzalez Dr.
(37.71695, -122.48001) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
18.8953 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Gonzalez Dr.
(37.71679, -122.47592) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
30.2325 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Cambon Dr.
(37.71590, -122.47445) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
28.3433 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Chumasero Dr.
(37.71501, -122.47298) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
25.5093 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Crespi Dr. / Varela Ave. / Serrano Dr. / Gonzalez Dr.
(37.71990, -122.47589) 		Other
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
43.4574 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Serrano Dr.
(37.71957, -122.47976) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
32.1209 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Pinto Ave. / Holloway Ave.
(37.72069, -122.48105) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
32.1204 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco, CA
San Francisco Co.
United States 		Font Blvd. / Arballo Dr.
(37.72177, -122.48231) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
35.8987 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
San Francisco State University, CA
San Francisco Co.
United States 		Font Blvd. / (parking lot)
(37.72286, -122.48358) 		Other
Existing 		One-Way/Two-Way Stop
Unknown 		3 Approaches
0 Driveways
33.0641 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
Los Angeles, CA
Los Angeles Co.
United States 		S Alandele Ave. / Lindenhurst Ave.
(34.06623, -118.35671) 		Other
Existing 		All-Way Stop
Unknown 		4 Approaches
0 Driveways
22.7555 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
Los Angeles, CA
Los Angeles Co.
United States 		S Alandele Ave. / S Genessee Ave. / S Orange Grove Ave. / Metropolitan Plaza
(34.06747, -118.35829) 		Other
Existing 		All-Way Stop
Unknown 		8 Approaches
0 Driveways
85.0846 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
Los Angeles, CA
Los Angeles Co.
United States 		S Orange Grove Ave. / Colgate Ave.
(34.06872, -118.35673) 		Other
Existing 		All-Way Stop
Unknown 		4 Approaches
0 Driveways
22.7549 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
Los Angeles, CA
Los Angeles Co.
United States 		S Fuller Ave. / S Burnside Ave. / Metropolitan Plaza
(34.06749, -118.35214) 		Other
Existing 		All-Way Stop
Unknown 		5 Approaches
0 Driveways
85.0846 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
Los Angeles, CA
Los Angeles Co.
United States 		S Fuller Ave. / Lindenhurst Ave.
(34.06624, -118.35373) 		Other
Existing 		All-Way Stop
None 		4 Approaches
0 Driveways
24.7343 		Other (At-Grade)
Single-Lane 		1950 ICD estimated from Google Maps linework.
Houston, TX
Harris Co.
United States 		Arrowwood Cir. / Maggie Ln.
(29.74479, -95.52577) 		Other
Existing 		Unknown
None 		4 Approaches
6 Driveways
70.1040 		Other (At-Grade)
Single-Lane 		1951
Fort Worth, TX
Tarrant Co.
United States 		Cullen St. / N Foch St.
(32.76153, -97.35638) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		1952 No splitter islands. Series of three along Cullen Street.
Fort Worth, TX
Tarrant Co.
United States 		Cullen St. / N Rupert St.
(32.76145, -97.34939) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		1952 No splitter islands. Series of three along Cullen Street.
Fort Worth, TX
Tarrant Co.
United States 		Cullen St. / N Vacek St.
(32.76150, -97.35276) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Single-Lane 		1952 No splitter islands. Series of three along Cullen Street.
Gloucester, MA
Essex Co.
United States 		Grant Circle [Rte 128 (Yankee Division Hwy) / Rte 127 / Washington St.]
(42.62204, -70.67609) 		Rotary
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
114.3000 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1952
San Antonio, TX
Bexar Co.
United States 		E Hermosa Dr. / E Wildwood Dr. / Broadmoor Dr.
(29.47883, -98.48760) 		Other
Existing 		Uncontrolled
None 		5 Approaches
0 Driveways
70.1040 		Other (At-Grade)
Single-Lane 		1953 No splitter islands.
San Antonio, TX
Bexar Co.
United States 		E Huisache Ave. / Carleton Ct.
(29.45581, -98.48970) 		Other
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		1953 No splitter islands. Parking along circulatory roadway.
Houston, TX
Harris Co.
United States 		Broadway / Park Pl. / I-45 Frontage Roads
(29.68551, -95.27756) 		Signalized Roundabout/Circle
Existing 		Signal
Unknown 		6 Approaches
0 Driveways
109.7280 		Freeway Ramps (Grade-Separated)
Multilane (3+ Lane) 		1954 Original 1920s circle contained interurban railway station; centerpiece of transit oriented development. Circle converted to conventional intersection after interurban was abandoned in 1936. Circle reconstructed 1954 as part of Gulf Freeway, following old ROW.
Fort Worth, TX
Tarrant Co.
United States 		Benbrook Circle [US 377 / TX 183 / Camp Bowie Blvd.]
(32.71704, -97.44314) 		Rotary
Existing 		Other
Unknown 		4 Approaches
2 Driveways
304.8000 		Other (At-Grade)
Multilane (3+ Lane) 		1957 Oval shape. ICD = 1000 ft x 650 ft. Circulating traffic yields to entering traffic on north leg.
Gloucester, MA
Essex Co.
United States 		Blackburn Circle [Rte 128 (Yankee Division Hwy) / Dory Rd. / School House Rd.]
(42.62497, -70.66152) 		Rotary
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
175.2600 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1958
El Paso, TX
El Paso Co.
United States 		Pennsylvania Circle [Pennsylvania Pl.]
(31.79173, -106.43599) 		Other
Existing 		Uncontrolled
Unknown 		2 Approaches
4 Driveways
67.0560 		Other (At-Grade)
Single-Lane 		1967
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.
College Station, TX
Brazos Co.
United States 		Old Main Dr. / Lamar St. / Jones St.
(30.61311, -96.34466) 		Other
Existing 		Other
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		1970 Some yield control, some stop control.
Höör, Skåne County
Höör
Sweden 		Gamla torg / Bygatan / Ågatan / Storgatan
(55.93052, 13.54751) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.0000 		Other (At-Grade)
Single-Lane 		1970 Year Completed estimated (before 1975).
Swindon, England
Wiltshire
United Kingdom 		"Magic Roundabout" [A4312 / Drove Rd. / Fleming Way / A4289 (County Rd.) / Shrivenham Rd.]
(51.56285, -1.77147) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
66.0791 		Other (At-Grade)
Ring junction (3+ mini-roundabouts in ring) 		1972 Ring junction of five mini-roundabouts. ICD estimated from Google Maps linework.
Pelican Bay, TX
Tarrant Co.
United States 		Pelican Circle [Pelican Dr. / Quail Run / Mockingbird Ln. / Wren Cir. / Whippoorwill Way]
(32.91605, -97.51857) 		Other
Existing 		All-Way Stop
None 		6 Approaches
16 Driveways
132.5877 		Other (At-Grade)
Single-Lane 		1972 Large residential circle with community center/clubhouse in center island.
Richardson, TX
Dallas Co.
United States 		Presidential Pkwy. / American Pkwy.
(32.95819, -96.70331) 		Other
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
0 Driveways
50.2920 		Other (At-Grade)
Single-Lane 		1974 Stop control on minor approach. No splitter islands on two legs.
Garland, TX
Dallas Co.
United States 		Miller Park S / Miller Park N
(32.90478, -96.68065) 		Other
Existing 		Other
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		1975 No yield sign on west leg.
Bjärred, Skåne County
Lomma
Sweden 		Fjelievägen / E6 NB Ramps
(55.72272, 13.09088) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane 		1976 Raindrop shaped. Merging right-turn bypass lane on east leg. The previous control was yield from ramp.
Höör, Skåne County
Höör
Sweden 		Malmövägen / Frostavallsvägen / Ystadvägen
(55.93599, 13.55519) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
85.0000 		Other (At-Grade)
Single-Lane 		1978 Year Completed estimated (before 1980).
Chalco, NE
Sarpy Co.
United States 		Meadows Pkwy. / Meadow Ridge Rd.
(41.17162, -96.13438) 		Other
Existing 		Other
None 		3 Approaches
1 Driveways
82.6008 		Other (At-Grade)
Single-Lane 		1979 Mix of stop and yield control on entry.
Hörby, Skåne County
Hörby
Sweden 		Rte 13 / Ringsjövägen
(55.84953, 13.64542) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
85.0000 		Other (At-Grade)
Single-Lane 		1980 Year Completed estimated (before 1985).
Richardson, TX
Dallas Co.
United States 		Lawnview Dr. / Lakeside Blvd.
(32.97910, -96.71101) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
64.0077 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		1981 Pedestrian access to central island. Updated in mid 2000's, modified into more conforming roundabout-like circle.
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.
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 		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.
Scottsdale, AZ
Maricopa Co.
United States 		Princess Blvd. / Princess Dr.
(33.64804, -111.91795) 		Other
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
64.0077 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		1986 Painted spiral next to central island. Completed 1986. Reconfigured in 2007? 21442
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 		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 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 		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 		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 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 		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 		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 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 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.
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 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 		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 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 		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.
Elk Grove, CA
Sacramento Co.
United States 		W Camden Dr. / N Camden Dr. / Camden Lake Way
(38.42732, -121.37700) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		1988 Year Completed apparent from historical Google Earth aerial photos.
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.