12318 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
Boynton Beach, FL
Palm Beach Co.
United States
Wellesley Rd. / Wheatley Rd.
(26.56313, -80.09136)
Other
Existing
All-Way Stop
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Sebastian, FL
Indian River Co.
United States
Osprey Cir. S
(27.78707, -80.46793)
Other
Existing
All-Way Stop
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Fieldston, NY
Bronx Co.
United States
W 246th St. / Fieldston Rd.
(40.89362, -73.90554)
Other
Existing
All-Way Stop
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Rye Brook, NY
Westchester Co.
United States
Edgewood Dr. / Woodland Dr. / Beechwood Blvd. / Loch Ln. / Hillandale Rd.
(41.02429, -73.67456)
Other
Existing
All-Way Stop
Unknown
5 Approaches
1 Driveways
0.0000
Other (At-Grade)
Single-Lane
(unincorporated), FL
Palm Beach Co.
United States
Lakes at Boca Raton / Cain Blvd.
(26.39603, -80.21160)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
21.3962
Other (At-Grade)
Single-Lane
1994 Completed November 1994. ICD estimated from Google Maps linework.
Lisbon, MD
Howard Co.
United States
MD 94 / MD 144
(39.33700, -77.07360)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
23.0933
Other (At-Grade)
Single-Lane
1993 First roundabout in Maryland. Built initially as temporary, made permanent after one month. ICD estimated from Google Maps linework.
Gainesville, FL
Alachua Co.
United States
SE 7th St. / SE 4th Ave.
(29.64824, -82.31792)
Neighborhood Traffic Circle
Existing
All-Way Yield
None
4 Approaches
0 Driveways
18.2880
Other (At-Grade)
Single-Lane
1992 Pedestrian crossings within circulatory roadway. Completed April 1992.
Fort Walton Beach, FL
Okaloosa Co.
United States
Hollywood Blvd. / Doolittle Blvd.
(30.41364, -86.66468)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
23.6896
Other (At-Grade)
Single-Lane
1994 ICD estimated from Google Maps linework.
Tallahassee, FL
Leon Co.
United States
Killarney Way / Shamrock Dr.
(30.51361, -84.22315)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
27.7810
Other (At-Grade)
Single-Lane
1994 Completed August 1994. ICD estimated from Google Maps linework.
Bradenton Beach, FL
Manatee Co.
United States
SR 789 / Bridge St.
(27.46500, -82.69847)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
14.8361
Other (At-Grade)
Single-Lane
1994 Completed August 1994. ICD estimated from Google Maps linework.
Santa Barbara, CA
Santa Barbara Co.
United States
Alameda Padre Serra / Montecito St. / Salinas St. / Sycamore Canyon Rd.
(34.42903, -119.67720)
Roundabout
Existing
All-Way Yield
None
5 Approaches
1 Driveways
23.6427
Other (At-Grade)
Single-Lane
1992 Includes driveway into roundabout serving one home. ICD estimated from Google Maps linework.
Long Beach, CA
Los Angeles Co.
United States
Los Alamitos Circle (Hwy. 1 / Lakewood Blvd. / Los Coyotes Diagonal)
(33.78989, -118.14250)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
137.1600
Other (At-Grade)
Multilane (2 Lane)
1993 Traffic circle conversion. Modified in 2020 to reduce lanes. 21442
Las Vegas (Summerlin), NV
Clark Co.
United States
Town Center Dr. / Hualapai Way
(36.17850, -115.31770)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
70.1040
Other (At-Grade)
Multilane (2 Lane)
1990 Completed March 1990. Modified 2003 to reduce from three-lane entries to two-lane entries with add-lane right-turn bypasses on all legs. ICD estimated from Google Maps linework. 21442
Las Vegas (Summerlin), NV
Clark Co.
United States
Town Center Dr. / Village Center Cir. / Library Hills Dr.
(36.18960, -115.30360)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
91.4400
Other (At-Grade)
Multilane (2 Lane)
1990 Completed March 1990. Modified 2010 to reduce lane configuration. 21442
Boca Raton, FL
Palm Beach Co.
United States
SW 18th St. / Juana Rd. (SW 12th Ave.)
(26.33206, -80.11059)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
47.0977
Other (At-Grade)
Single-Lane
Raised splitter islands on SW 18th St., painted splitter islands on Juana Rd.. Flashing warning beacon on eastbound SW 18th St. approach. Year Completed unknown (before 1995). ICD estimated from Google Maps linework.
Vail, CO
Eagle Co.
United States
Vail Rd. / I-70 WB Ramps / North Frontage Rd. / Spraddle Cr. Rd.
(39.64477, -106.37770)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
29.4288
Other (At-Grade)
Multilane (2 Lane)
1995 Raindrop-shaped central island. ICD estimated from Google Maps linework.
Vail, CO
Eagle Co.
United States
Vail Rd. / I-70 EB Ramps / South Frontage Rd.
(39.64355, -106.37810)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
49.6620
Other (At-Grade)
Multilane (2 Lane)
1995 Completed October 1995. Circular central island. ICD estimated from Google Maps linework.
Lothian, MD
Anne Arundel Co.
United States
MD 2 / MD 408 / MD 422
(38.82973, -76.61590)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.8423
Other (At-Grade)
Single-Lane
1995 Completed October 1995. ICD estimated from Google Maps linework.
Elkton, MD
Cecil Co.
United States
MD 213 (Fair Hill Rd.) / Leeds Rd. / Elk Mill Rd. (Lanzi Circle)
(39.66364, -75.85529)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
34.0178
Other (At-Grade)
Single-Lane
1995 Previously controlled by two-way stop. Functional Class: Arterial ICD estimated from Google Maps linework.
Cearfoss, MD
Washington Co.
United States
MD 63 / MD 58 / MD 494 (Cearfoss Pk)
(39.70017, -77.77593)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
31.2431
Other (At-Grade)
Single-Lane
1995 Completed December 1995. ICD estimated from Google Maps linework.
Towson, MD
Baltimore Co.
United States
MD 45 / MD 146 / Joppa Rd. / Allegheny Ave.
(39.40185, -76.60230)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
47.9892
Other (At-Grade)
Multilane (2 Lane)
1998 Opened October 1998. Exit striping retrofitted to roundabout after opening. Hotdog/racetrack shape. ICD estimated from Google Maps linework. 21442
West Palm Beach, FL
Palm Beach Co.
United States
S. Quadrille Blvd. (El Campeon Blvd.) / Fern St.
(26.71040, -80.05505)
Roundabout
Removed
All-Way Yield
Unknown
4 Approaches
0 Driveways
18.1370
Other (At-Grade)
Multilane (2 Lane)
1997 Replaced with TWSC. Year Completed estimated (1995-1999)/ ICD estimated from Google Maps linework.
Daytona Beach, FL
Volusia Co.
United States
Seabreeze Circle (Seabreeze Bridge / Mason Ave. / Ballough Dr.)
(29.22941, -81.02484)
Rotary
Removed
All-Way Yield
Unknown
0 Approaches
0 Driveways
42.7326
Other (At-Grade)
Multilane (2 Lane)
1997 Replaced with construction of new Seabreeze Bridge. Year Completed estimated (1995-1999). ICD estimated from Google Maps linework.
Lake Worth, FL
Palm Beach Co.
United States
Lake Worth Ave. (SR 802) / A St.
(26.61670, -80.06500)
Roundabout
Existing
All-Way Yield
Pedestrian Signal (red-yellow-green to drivers)
4 Approaches
0 Driveways
42.7103
Other (At-Grade)
Multilane (2 Lane)
2002 ICD estimated from Google Maps linework.
Naples, FL
Collier Co.
United States
8th St. S / 12th Ave. S
(26.13267, -81.79491)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
18.2281
Other (At-Grade)
Single-Lane
1996 Installed for community enhancement. ICD estimated from Google Maps linework.
Naples, FL
Collier Co.
United States
7th St. N. / 3rd Ave. N.
(26.15530, -81.80524)
Neighborhood Traffic Circle
Existing
All-Way Yield
None
4 Approaches
0 Driveways
9.6483
Other (At-Grade)
Single-Lane
1998 Installed for traffic calming. Detailed traffic volume, speed data available. ICD estimated from Google Maps linework.
Tavares, FL
Lake Co.
United States
Main St. / Disston Ave. / Lake Dora Dr.
(28.80215, -81.72475)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
20.9315
Other (At-Grade)
Single-Lane
1996 Railroad tracks running along edge of central island. RR unprotected, train frequency 1-2/wk, 10 mph. ICD estimated from Google Maps linework.
Clovis, NM
Curry Co.
United States
Hwy 245 (Llano Estacado Blvd.) / Norris St.
(34.43384, -103.17830)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
44.3276
Other (At-Grade)
Single-Lane
2006 Completed February 27, 2006. Website: http://www.cityofclovis.org/roundabout/roundabout.htm ICD estimated from Google Maps linework.
Taneytown, MD
Carroll Co.
United States
MD 140 / MD 832 / Antrim Blvd.
(39.64809, -77.15468)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.4627
Other (At-Grade)
Multilane (2 Lane)
1996 Completed August 1996. Curbs set for double lane, striped for single outer circulating lane. ICD estimated from Google Maps linework.
Hilton Head, SC
Beaufort Co.
United States
Whooping Crane Way / Main St.
(32.21647, -80.72187)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
44.4598
Other (At-Grade)
Single-Lane
1996 Completed February 1996. ICD estimated from Google Maps linework.
Montpelier, VT
Washington Co.
United States
Keck Circle (Main St. / Spring St.)
(44.26283, -72.57178)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
25.6594
Other (At-Grade)
Single-Lane
1995 Main Street Middle School located one block NE of roundabout. ICD estimated from Google Maps linework.
Sarasota, FL
Sarasota Co.
United States
South Gate Circle (Tuttle Ave. / Siesta Dr.)
(27.30536, -82.51414)
Other
Existing
All-Way Yield
None
4 Approaches
0 Driveways
120.9825
Other (At-Grade)
Unknown
Yield control on circulatory roadway. ICD estimated from Google Maps linework.
Naples, FL
Collier Co.
United States
7th St. N. / 7th Ave. N.
(26.15619, -81.79971)
Neighborhood Traffic Circle
Existing
All-Way Yield
None
4 Approaches
0 Driveways
22.5125
Other (At-Grade)
Single-Lane
1998 Installed for traffic calming. Detailed traffic volume, speed data available. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Naples, FL
Collier Co.
United States
7th St. N. / 11th Ave. N.
(26.15712, -81.79420)
Neighborhood Traffic Circle
Existing
All-Way Yield
None
4 Approaches
0 Driveways
13.7160
Other (At-Grade)
Single-Lane
1996 Installed for traffic calming. Painted splitter islands. Detailed traffic volume, speed data available. ICD estimated from Google Earth.
Naples, FL
Collier Co.
United States
7th St. N. / 12th Ave. N.
(26.15734, -81.79282)
Neighborhood Traffic Circle
Existing
All-Way Yield
None
4 Approaches
0 Driveways
13.7160
Other (At-Grade)
Single-Lane
1996 Installed for traffic calming. Detailed traffic volume, speed data available. ICD estimated from Google Earth.
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.
Stuart, FL
Martin Co.
United States
N. Colorado Ave. / E. Osceola St.
(27.19860, -80.25300)
Neighborhood Traffic Circle
Existing
All-Way Yield
None
4 Approaches
0 Driveways
32.9303
Other (At-Grade)
Single-Lane
ICD estimated from Google Maps linework.
Vail, CO
Eagle Co.
United States
Chamonix Rd. / I-70 WB Ramps / North Frontage Rd.
(39.62828, -106.42120)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
40.4743
Other (At-Grade)
Multilane (2 Lane)
1997 Previously controlled by two-way stop ICD estimated from Google Maps linework.
Vail, CO
Eagle Co.
United States
Chamonix Rd. / I-70 EB Ramps / South Frontage Rd.
(39.62753, -106.42020)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
38.6350
Other (At-Grade)
Multilane (2 Lane)
1997 Previously controlled by two-way stop ICD estimated from Google Maps linework.
Avon, CO
Eagle Co.
United States
Avon Rd. / I-70 WB Ramps
(39.63782, -106.52080)
Roundabout
Existing
All-Way Yield
Active Pedestrian Warning (flashing yellow)
3 Approaches
0 Driveways
33.1108
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
1997 Highway ref. pt. 70-166.62. Raindrop-shaped central island. ICD estimated from Google Maps linework.
Avon, CO
Eagle Co.
United States
Avon Rd. / I-70 EB Ramps
(39.63683, -106.52170)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
36.7903
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
1997 Highway ref. pt. 70-166.62. Previously controlled by two-way stop ICD estimated from Google Maps linework.
Avon, CO
Eagle Co.
United States
Avon Rd. / Beaver Creek Blvd.
(39.63528, -106.52220)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
37.7109
Other (At-Grade)
Multilane (2 Lane)
1997 Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Avon, CO
Eagle Co.
United States
Avon Rd. / Benchmark Rd.
(39.63425, -106.52220)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.7200
Other (At-Grade)
Multilane (2 Lane)
1997 Originally had raindrop shape with locked gate access across south leg for emergency vehicles only. Redesigned and reopened May 2007 with full access. 21442
Avon, CO
Eagle Co.
United States
Avon Rd. / US 6
(39.63110, -106.52260)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.4726
Other (At-Grade)
Multilane (2 Lane)
1997 Highway ref. pt. 6-170.04. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Nederland, CO
Boulder Co.
United States
SH 72 / SH 119 / 2nd St. / Bridge St.
(39.96261, -105.51030)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
23.8006
Other (At-Grade)
Single-Lane
1995 Opened June 1995. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Tampa, FL
Hillsborough Co.
United States
North Blvd. / Country Club Dr.
(28.05466, -82.46759)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
14.7559
Other (At-Grade)
Single-Lane
1996 Completed June 1996. ICD estimated from Google Maps linework.
Winston-Salem, NC
Forsyth Co.
United States
Salem Rd. / Old Salem Rd. / S. Main St.
(36.08215, -80.24149)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
49.2265
Other (At-Grade)
Multilane (2 Lane)
2005 TIP Project U-2926. Functional Class: Arterial ICD estimated from Google Maps linework.
Scottsdale, AZ
Maricopa Co.
United States
N. 64th St. / E. Lafayette Blvd.
(33.49474, -111.94330)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
21.9119
Other (At-Grade)
Single-Lane
2000 ICD estimated from Google Maps linework.
Olmos Park, TX
Bexar Co.
United States
Olmos Dr. / El Prado Dr. / McCullough Ave.
(29.47094, -98.49162)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
24.9549
Other (At-Grade)
Single-Lane
1996 Completed July 1996. ICD estimated from Google Maps linework.
Manchester, VT
Bennington Co.
United States
Rte. 7A / Equinox (Grand Union)
(43.17309, -73.06181)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
26.1304
Other (At-Grade)
Single-Lane
1997 Roundabout is in a retail/outlet district in a resort area. VT 7-A is posted as a Historic Highway and is the local business route, while the parallel US 7 is a two-lane, limited access bypass that carries through truck traffic. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Annapolis, MD
Anne Arundel Co.
United States
MD 450 (West St.) / Taylor Ave. / Spa Rd. (Gateway Circle)
(38.97630, -76.50486)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.4954
Other (At-Grade)
Multilane (2 Lane)
1999 Opened December 1999. ICD estimated from Google Maps linework.
De Pere, WI
Brown Co.
United States
Scheuring Rd. (CTH F) / US 41 NB Ramps
(44.43074, -88.10989)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
44.3491
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2011 Series of 6 roundabouts. Opened September 2011. Circular central island. ICD estimated from Google Maps linework.
Acworth-Kennesaw, GA
Cobb Co.
United States
W. Sandtown Rd. / Villa Rica Rd.
(33.92703, -84.63775)
Roundabout
Existing
All-Way Yield
None
0 Approaches
0 Driveways
27.7478
Other (At-Grade)
Single-Lane
2008 ICD estimated from Google Maps linework.
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
Santa Barbara, CA
Santa Barbara Co.
United States
Milpas St. / US 101 NB Ramps / Carpinteria St.
(34.42070, -119.67810)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
75.8614
Other (At-Grade)
Multilane (2 Lane)
2000 Oblong central island. Completed April 2000. Experienced one single-vehicle fatality (date unknown). 11861-05. ICD estimated from Google Maps linework.
Cottonwood, AZ
Yavapai Co.
United States
AZ 89A / Verde Heights Dr.
(34.73999, -112.03740)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
50.0532
Other (At-Grade)
Multilane (2 Lane)
2009 Series of 5 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Oshkosh, WI
Winnebago Co.
United States
CTH E (Witzel Ave.) / Koeller St.
(44.01805, -88.58098)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
42.0845
Other (At-Grade)
Multilane (2 Lane)
2010 Opened September 24, 2010. ICD estimated from Google Maps linework.
Carlsbad, CA
San Diego Co.
United States
Legoland Dr. / Armada Dr.
(33.13229, -117.31660)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
34.0049
Other (At-Grade)
Multilane (2 Lane)
1999 ICD estimated from Google Maps linework.
Phoenix, AZ
Maricopa Co.
United States
S. Pointe Pkwy. W / S. Pointe Pkwy. E
(33.37649, -111.97210)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
50.8650
Other (At-Grade)
Single-Lane
1994 Before 1997. ICD estimated from Google Maps linework.
Douglasville, GA
Douglas Co.
United States
SR 5 / SR 166
(33.61361, -84.83688)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
25.8602
Other (At-Grade)
Single-Lane
2007 Fatal crash November 24, 2011. 11861-05. ICD estimated from Google Maps linework.
(unincorporated), MD
Anne Arundel Co.
United States
Arundel Beach Rd. / Leelyn Dr.
(39.07955, -76.54560)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
25.9594
Other (At-Grade)
Single-Lane
1999 ICD estimated from Google Maps linework.
Brunswick, MD
Frederick Co.
United States
MD 17 / A St. / B St. / Maryland Ave.
(39.31433, -77.62807)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
42.5054
Other (At-Grade)
Single-Lane
2000 ICD estimated from Google Maps linework.
De Pere, WI
Brown Co.
United States
Scheuring Rd. (CTH F) / US 41 SB Ramps
(44.43050, -88.11402)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
53.7308
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2011 Series of 6 roundabouts. Opened September 2011. ICD estimated from Google Maps linework.
Catonsville, MD
Baltimore Co.
United States
MD 372 / Hilltop Rd. / Entrance to UMBC
(39.25733, -76.71964)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
35.1417
Other (At-Grade)
Single-Lane
1998 Functional Class: Collector ICD estimated from Google Maps linework.
Lisbon, MD
Howard Co.
United States
MD 94 / Old Frederick Rd. (Lisbon North)
(39.34810, -77.06930)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
26.7839
Other (At-Grade)
Single-Lane
1999 ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States
MD 103 / MD 100 WB Ramps
(39.20846, -76.78294)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
33.3154
Freeway Ramps (Grade-Separated)
Single-Lane
1998 Opened November 1998. ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States
MD 103 / MD 100 EB Ramps
(39.20733, -76.78243)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
30.5396
Freeway Ramps (Grade-Separated)
Single-Lane
1998 Opened November 1998. ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States
Snowden River Pkwy. / MD 100 WB Ramps
(39.21233, -76.79544)
Roundabout
Existing
All-Way Yield
Metering Signal
3 Approaches
0 Driveways
25.9105
Freeway Ramps (Grade-Separated)
Single-Lane
1998 Opened November 1998. Metering signal on Snowden River Pkwy approach. ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States
MD 104 (Waterloo Rd.) / MD 100 WB Ramps
(39.22470, -76.80600)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
37.0085
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
1999 ICD estimated from Google Maps linework.
Federalsburg, MD
Caroline Co.
United States
MD 307 / MD 313 / MD 318
(38.68938, -75.78949)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
35.4247
Other (At-Grade)
Single-Lane
1999 Rural, installed for safety reasons Previously controlled by two-way stop ICD estimated from Google Maps linework.
Cedar Lake Township, MN
Scott Co.
United States
SH 13 (Langford Ave.) / CR 2 (260th St.)
(44.57259, -93.50546)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.9429
Other (At-Grade)
Single-Lane
2005 Rural location, intersection of two 55-mph facilities. Previous 2-way stop had 2 fatal crashes and 50 injury crashes in 5 years. Opened to traffic in September 2005. During 12 months after opening, 1 reported crash involving single motorcycle running off road. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Mount Rainier, MD
Prince Georges Co.
United States
US 1 / 34th St. / Perry St.
(38.93647, -76.96074)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
30.6570
Other (At-Grade)
Multilane (2 Lane)
2001 Functional Class: Arterial ICD estimated from Google Maps linework.
Lutherville-Timonium, MD
Baltimore Co.
United States
MD 139 (Charles St.) / Bellona Ave.
(39.41790, -76.62900)
Roundabout
Removed
All-Way Yield
None
4 Approaches
0 Driveways
34.1385
Other (At-Grade)
Multilane (2 Lane)
1999 Mini-roundabout. Double-lane circulatory roadway across northern half. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Copley Township, OH
Summit Co.
United States
Ridgewood Rd. / Hametown Rd.
(41.11395, -81.66791)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
25.1947
Other (At-Grade)
Single-Lane
2006 Opened August 21, 2006. ICD estimated from Google Maps linework.
Decatur, GA
DeKalb Co.
United States
N. Decatur Rd. / Lullwater Rd.
(33.78700, -84.32900)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
90.3283
Other (At-Grade)
Single-Lane
2004 Functional Class: Arterial ICD estimated from Google Maps linework.
Huntsville, AL
Madison Co.
United States
Old Monrovia Rd. / Providence Main St. / Indian Creek Rd.
(34.75765, -86.68776)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
34.3429
Other (At-Grade)
Single-Lane
2004 Single-lane with right-turn only lanes. Built as staged construction with potential to be multilane. ICD estimated from Google Maps linework.
Camp Verde, AZ
Yavapai Co.
United States
Middle Verde / Cliff Castle
(34.60927, -111.86130)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
37.3535
Other (At-Grade)
Single-Lane
2005 ICD estimated from Google Maps linework.
De Pere, WI
Brown Co.
United States
Grant St. (CTH EE) / Lawrence Dr.
(44.44511, -88.09367)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
29.8430
Other (At-Grade)
Single-Lane
2008 Opened September 30, 2008. ICD estimated from Google Maps linework.
Truckee, CA
Nevada Co.
United States
Donner Pass Rd. / W. River St. / McIver Crossing
(39.32510, -120.19200)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
35.1077
Other (At-Grade)
Single-Lane
1998 Fatal crash. 11861-05. Functional Class: Arterial ICD estimated from Google Maps linework.
Dawsonville, GA
Dawson Co.
United States
SR 9E (Lumpkin Campground Rd.) / Dawson Forrest Rd.
(34.35427, -84.05168)
Roundabout
Existing
All-Way Yield
None
0 Approaches
0 Driveways
36.4818
Other (At-Grade)
Single-Lane
2007 ICD estimated from Google Maps linework.
Oakwood, GA
Hall Co.
United States
Landrum Education Dr. / Frontage Rd. / Mathis Dr.
(34.23434, -83.86434)
Roundabout
Existing
All-Way Yield
None
0 Approaches
0 Driveways
28.6347
Other (At-Grade)
Single-Lane
2007 Gainesville College ICD estimated from Google Maps linework.
Gorham, ME
Cumberland Co.
United States
US 202 / Rte. 4 / Rte. 237
(43.72846, -70.42525)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
25.0285
Other (At-Grade)
Single-Lane
1997 Previously controlled by two-way stop ICD estimated from Google Maps linework.
(unincorporated), MD
Prince Georges Co.
United States
Ft. Washington Rd. / Swan Creek Rd.
(38.72498, -77.00491)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
25.1576
Other (At-Grade)
Single-Lane
1997 Fourth leg added. Year Completed estimated (before 2001). ICD estimated from Google Maps linework.
Bel Air, MD
Harford Co.
United States
Tollgate Rd. / Marketplace Dr.
(39.52092, -76.35262)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
28.5602
Other (At-Grade)
Single-Lane
1996 Three leg, off-set roundabout - off-set due to lack of r/w on top side of Functional Class: Collector ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States
Trotter Rd. / South Wind Cir.
(39.20956, -76.91891)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
23.1353
Other (At-Grade)
Single-Lane
1997 Functional Class: Collector. Year Completed estimated (1993-2001). ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States
Rice Rd. / I-70 WB Ramps / Sycamore Dr.
(39.03610, -95.62310)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
44.5293
Freeway Ramps (Grade-Separated)
Single-Lane
2000 Part of a major realignment of I-70 and K-4. Sycamore Drive is one way with two westbound lanes (into the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework.
Topeka, KS
Shawnee Co.
United States
Rice Rd. / I-70 EB Ramps / Cyprus Drive
(39.03190, -95.62320)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
52.8817
Freeway Ramps (Grade-Separated)
Single-Lane
2000 Part of a major realignment of I-70 and K-4. Cyprus Drive is One Way Eastbound (away from the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework.
Green Bay, WI
Brown Co.
United States
W. Mason St. (STH 32-STH 54) / US 41 SB Ramps
(44.52418, -88.08284)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
45.9811
Freeway Ramps (Grade-Separated)
Multilane (3+ Lane)
2012 Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework.
Brattleboro, VT
Windham Co.
United States
Rte. 9 / Rte. 5
(42.88500, -72.55670)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
53.3817
Other (At-Grade)
Multilane (2 Lane)
1999 Adjacent to I-89. Heavy truck volume (>7%) Functional Class: Arterial ICD estimated from Google Maps linework.
Green Bay, WI
Brown Co.
United States
W. Mason St. (STH 32-STH 54) / US 41 NB Ramps
(44.52415, -88.08103)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
43.4266
Freeway Ramps (Grade-Separated)
Multilane (3+ Lane)
2012 Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework.
Lakewood, CO
Jefferson Co.
United States
Arbutus Dr. / Red Rocks Community College
(39.71903, -105.14840)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.7465
Other (At-Grade)
Single-Lane
2001 Functional Class: Collector ICD estimated from Google Maps linework.
St. Simons, GA
Glynn Co.
United States
Frederica Rd. / Lawrence Rd.
(31.21650, -81.37550)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
40.8563
Other (At-Grade)
Single-Lane
2006 ICD estimated from Google Maps linework.
Clackamas, OR
Clackamas Co.
United States
Monterey Ave. / Stevens Rd.
(45.43780, -122.56390)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.8738
Other (At-Grade)
Single-Lane
2006 Fourth leg serves New Hope Community Church parking lot. ICD estimated from Google Maps linework.
Abingdon, MD
Harford Co.
United States
Tollgate Rd. / Montrose Way
(39.48198, -76.32751)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.5762
Other (At-Grade)
Single-Lane
2003 Elementary school and library to north, another school to south. Functional Class: Collector ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States
West End Rd. / Spear Ave. / Saint Louis Rd.
(40.88910, -124.08210)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
27.0866
Other (At-Grade)
Single-Lane
1998 Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States
Samoa Blvd. / Union St.
(40.86140, -124.07730)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
35.2273
Other (At-Grade)
Single-Lane
1999 Functional Class: Arterial ICD estimated from Google Maps linework.
Bel Air, MD
Harford Co.
United States
Tollgate Rd. / Westover Ln. / Crisfield Dr.
(39.46859, -76.32162)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
26.7377
Other (At-Grade)
Single-Lane
2002 http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Arcata, CA
Humboldt Co.
United States
Samoa Blvd. / Buttermilk Ln.
(40.85710, -124.07250)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.1329
Other (At-Grade)
Single-Lane
1999 Functional Class: Arterial ICD estimated from Google Maps linework.