City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways / ICD (m) |
Functional Class / LaneType |
Year Completed | Comments |
---|---|---|---|---|---|---|---|
Urbana,
MD Frederick Co. United States |
MD 355 / Sugarloaf Pkwy. (39.32862, -77.35193) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.8013 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Lacey,
WA Thurston Co. United States |
I-5 NB Off-Ramp / Galaxy Dr. / Quinault Dr. (47.06127, -122.76890) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 32.5438 |
Other (At-Grade) Single-Lane |
2000 | Completed November 1, 2000. ICD estimated from Google Maps linework. |
Urbana,
MD Frederick Co. United States |
Sugarloaf Pkwy. / Denison St. (39.33490, -77.34180) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 36.9503 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | ICD estimated from Google Maps linework. |
Federal Way,
WA King Co. United States |
S 323rd St. / 32nd Ave. S (47.31214, -122.29250) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 44.5368 |
Other (At-Grade) Single-Lane |
2000 | Opened April 2000. ICD estimated from Google Maps linework. |
Urbana,
MD Frederick Co. United States |
MD 355 / Sprigg St. (39.33070, -77.35654) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 42.4954 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Urbana,
MD Frederick Co. United States |
Bush Creek Dr. / Major Smith Ln. (39.33507, -77.35263) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.6364 |
Other (At-Grade) Single-Lane |
2000 | 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. |
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. |
Santa Barbara,
CA Santa Barbara Co. United States |
Milpas St. / US 101 NB Ramps / Carpinteria St. (34.42073, -119.67765) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 62.4840 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | Oblong shaped. ICD = 250 ft x 125 ft. Completed April 2000. Experienced one single-vehicle fatality (date unknown). 11861-05. |
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. |
Las Vegas (Summerlin),
NV Clark Co. United States |
Havenwood Ave. / Desert Marigold Ln. / Navajo Willow Ln. (36.13360, -115.32110) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.5483 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | Functional Class: Collector. Year Completed estimated (1999-2002). ICD estimated from Google Maps linework. |
Parkville,
MO Platte Co. United States |
MO 45 (Tom Watson Pkwy.) / National Dr. (39.21016, -94.70027) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.1210 |
Other (At-Grade) Single-Lane |
2000 | Functional Class: Arterial ICD estimated from Google Maps linework. |
Park City,
UT Summit Co. United States |
Rte 224 (Deer Valley Drive) / Heber Avenue / Marsac Avenue (40.64572, -111.49500) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 46.2161 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | See: www.Roundaboutsusa.com Information as reported in Salt Lake Tribune article: http://www.sltrib.com/2000/Sep/09142000/utah/22072.htm Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. |
Lewisville,
NC Forsyth Co. United States |
Concord Church Rd. / US 421 SB Ramp / Williams Rd. (36.08978, -80.43072) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 29.9191 |
Freeway Ramps (Grade-Separated) Single-Lane |
2000 | Solved capacity problem. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
Claremont,
CA Los Angeles Co. United States |
Indian Hill Blvd. / Bonita St. (34.09662, -117.71930) |
Roundabout Removed |
All-Way Yield Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
2000 | Temporary roundabout installed in August 1999, removed in April 2000. Strong public negative opinion cited as reason for removal. (Westernite, July-August 2000, pp. 2-3) |
Olathe,
KS Johnson Co. United States |
Sheridan Rd. / Rogers Rd. (38.87200, -94.79430) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 43.7027 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | ICD estimated from Google Maps linework. |
Federal Way,
WA King Co. United States |
Weyerhaeuser Way S / 33rd Pl S / 32nd Dr. S (47.29863, -122.29280) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.6385 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | Opened April 2000. Previously controlled by one-way stop Functional Class: Arterial 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. |
Hutchinson,
KS Reno Co. United States |
23rd Ave. / Severence St. (38.07940, -97.91340) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 34.7846 |
Other (At-Grade) Single-Lane |
2000 | Near the state fairgrounds in Hutchinson Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework. |
Bend,
OR Deschutes Co. United States |
NW Mt. Washington Dr. / Shevlin Park Rd. (44.06780, -121.35530) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.7584 |
Other (At-Grade) Single-Lane |
2000 | South leg on Mt. Washington Drive added as part of new development. ICD estimated from Google Maps linework. |
Bend,
OR Deschutes Co. United States |
NW Mt. Washington Dr. / NW Crossing Dr. (44.05890, -121.35670) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 32.6144 |
Other (At-Grade) Single-Lane |
2000 | Both roadways brand new as part of new development. 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. |
Kennewick,
WA Benton Co. United States |
27th Ave. / Union St. / Southridge Blvd / W Creekstone Dr. (46.18497, -119.18040) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 40.5168 |
Other (At-Grade) Single-Lane |
2000 | Completed August 25, 2000. Right-turn bypass on WB approach. Was 3-leg intersection; fourth leg added to west as part of project. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. |
Kingston,
NY Ulster Co. United States |
I-587 / Rte 28 / I-87 Ramps / Washington Ave. (41.94362, -74.02840) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 60.9600 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max) |
2000 | A 600 ft diameter traffic circle was replaced by 200 ft diameter roundabout. At Exit 19 from I-87. I-587 terminates in roundabout. |
Phoenix,
AZ Maricopa Co. United States |
E. Cotton Center Blvd. / S. 44th Pl. (33.40279, -111.98790) |
Other Existing |
Unknown Unknown |
0 Approaches 0 Driveways 163.5163 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | ICD estimated from Google Maps linework. |
Phoenix,
AZ Maricopa Co. United States |
Pointe Pkwy. / S 48th St. (33.37162, -111.97410) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | |
Provo,
UT Utah Co. United States |
Riverside Ave. / W 1720 North (40.25703, -111.66810) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 21.8749 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
New London,
CT New London Co. United States |
Shaw St. / Howard St. / Willets Ave. (41.34284, -72.09972) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 34.9700 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Des Moines,
IA Polk Co. United States |
Gannett Ave. / Rittenhouse St. (41.52031, -93.65178) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 41.1341 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Fort Mill,
SC York Co. United States |
Assembly Dr. / First Baxter Crossing (35.02980, -80.96839) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 53.7889 |
Other (At-Grade) Single-Lane |
2000 | Year Completed estimated (1998-2002). ICD estimated from Google Maps linework. |
Durham,
NC Durham Co. United States |
Glendale Ave. / Washington St. (36.02251, -78.90046) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 34.7744 |
Other (At-Grade) Single-Lane |
2000 | Modified circle, part of I-85 detour route. ICD estimated from Google Maps linework. |
Loveland,
CO Larimer Co. United States |
Valley Oak Dr. / Clearwater Dr. (40.44328, -105.02180) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 34.5398 |
Other (At-Grade) Single-Lane |
2000 | Date estimated. Functional Class: Local ICD estimated from Google Maps linework. |
Parker,
CO Douglas Co. United States |
Main St. / (unknown) (39.51799, -104.75580) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 19.3480 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Loveland,
CO Larimer Co. United States |
Monte Vista Dr. East / W. 22nd St. (40.41451, -105.13180) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 24.5519 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Loveland,
CO Larimer Co. United States |
Monte Vista Dr. West / W. 22nd St. (40.41449, -105.13290) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 26.3706 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Loveland,
CO Larimer Co. United States |
New Castle Dr. / Tabernash Dr. (40.42599, -105.12010) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 24.5477 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Englewood,
CO Arapahoe Co. United States |
Englewood Pkwy. / S. Cherokee St. (39.65491, -104.99110) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 41.3782 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | ICD estimated from Google Maps linework. |
Hayward,
CA Alameda Co. United States |
Orchard Ave. / Joyce St. (37.65808, -122.07850) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 18.9103 |
Other (At-Grade) Single-Lane |
2000 | Painted splitter islands. Built as temporary in February 2000, reconstructed permanent central island 2001 (http://ci.hayward.ca.us/citygov/meetings/cca/rp/2000/rp091900-05.pdf). ICD estimated from Google Maps linework. |
Escalon,
CA San Joaquin Co. United States |
1st Ave. / Riesling Way (37.79437, -121.01140) |
Traffic Calming Circle Existing |
All-Way Yield None |
4 Approaches 0 Driveways 18.8755 |
Other (At-Grade) Single-Lane |
2000 | Painted splitter islands. ICD estimated from Google Maps linework. |
Pleasanton,
CA Alameda Co. United States |
Valley Ave. / (unknown) (37.65670, -121.89670) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 28.3660 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Pleasanton,
CA Alameda Co. United States |
Valley Ave. / E Gate Way (37.65487, -121.89530) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.3667 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Pleasanton,
CA Alameda Co. United States |
Valley Ave. / Oak Vista Way (37.65349, -121.89390) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 27.4216 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Pleasanton,
CA Alameda Co. United States |
Valley Ave. / Pleasanton Ave. / Laguna Creek Ln. (37.65175, -121.89043) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 33.5280 |
Other (At-Grade) Single-Lane |
2000 | |
Columbia,
MD Howard Co. United States |
Golden Straw Ln. / Long Meadow Ct. (39.21441, -76.81085) |
Traffic Calming Circle Existing |
Other None |
3 Approaches 0 Driveways 99.0123 |
Other (At-Grade) Single-Lane |
2000 | Yield control only on west leg. ICD estimated from Google Maps linework. |
Walnut Creek,
CA Alameda Co. United States |
Walnut Ave. / Oak Grove Rd. (37.91432, -122.00770) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 22.6138 |
Other (At-Grade) Single-Lane |
2000 | Right turn bypass lane in northwest quadrant. ICD estimated from Google Maps linework. |
Roseville,
CA Placer Co. United States |
Parkside Way / New Meadow Dr. (38.79915, -121.32150) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 26.9931 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Hilton Head,
SC Beaufort Co. United States |
Pembroke Dr. / Indigo Run Dr. (32.21179, -80.71949) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.5041 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | Year Completed estimated (1994-2005). ICD estimated from Google Maps linework. |
Lincoln,
NE Lancaster Co. United States |
Southwest High School (40.73830, -96.70326) |
Traffic Calming Circle Existing |
All-Way Yield None |
3 Approaches 0 Driveways 25.3383 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Lincoln,
NE Lancaster Co. United States |
S 16th St. / Garret Ln. (40.73623, -96.69884) |
Traffic Calming Circle Existing |
All-Way Yield None |
4 Approaches 0 Driveways 19.9093 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Woodbridge,
VA Prince William Co. United States |
Belmont Bay Dr. / Palisades St. (38.65612, -77.23753) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.4412 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | ICD estimated from Google Maps linework. |
Woodbridge,
VA Prince William Co. United States |
Belmont Bay Dr. / Course View Way (38.65403, -77.23640) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 25.1826 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Huntsville,
AL Madison Co. United States |
Home Depot Access / Costco Access (34.74251, -86.60383) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 30.4236 |
Other (At-Grade) Single-Lane |
2000 | Year Completed estimated (1998-2002). ICD estimated from Google Maps linework. |
Phoenix,
AZ Maricopa Co. United States |
Devonna Ln. / Watkins St. / 84th Dr. / Hammond Ln. (33.42601, -112.24090) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 23.9228 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Hercules,
CA Contra Costa Co. United States |
Refugio Valley Rd. / Redwood Rd. / Falcon Way (37.99686, -122.24780) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 34.8238 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
West Des Moines,
IA Dallas Co. United States |
Wistful Vista Dr. / S. 79th St. (41.56572, -93.81668) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.6372 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Rochester,
MI Oakland Co. United States |
Tienken Rd. / Runyon Rd. / Washington Rd. (42.69743, -83.11135) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 43.0105 |
Other (At-Grade) Single-Lane |
1999 | Total cost: $353,000. Completed July 1999. Functional Class: Arterial ICD estimated from Google Maps linework. |
Eugene,
OR Lane Co. United States |
Barger Dr. / Green Hill Rd. (44.08470, -123.20830) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 32.6002 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Lawrence,
KS Douglas Co. United States |
Monterey Way / Harvard Rd. (38.96400, -95.28833) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 15.7869 |
Other (At-Grade) Single-Lane |
1999 | Built as part of reconstrction of Monterey Way. Designed as part of City/State Safety Improvement Project. ICD estimated from Google Maps linework. |
Boynton Beach,
FL Palm Beach Co. United States |
Hagen Ranch Rd. / Treviso Ln. (26.54100, -80.16380) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 25.6431 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Clearwater,
FL Pinellas Co. United States |
SR 60 / Coronado Dr. (SR 699) / Mandalay Ave. / Poinsettia Ave. (Gateway Roundabout) (27.97752, -82.82709) |
Roundabout Existing |
All-Way Yield Metering Signal |
6 Approaches 0 Driveways 68.5587 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1999 | Modified 2002-2004 to change geometry and striping, and remove fountain. 21442 |
Chesterfield,
MO St. Louis Co. United States |
Schoettler Valley Dr. / Highcroft Dr. (38.64415, -90.55331) |
Other Removed |
Unknown Unknown |
4 Approaches 0 Driveways 17.7235 |
Other (At-Grade) Single-Lane |
1999 | Temporary roundabout installed in Fall 1999. Removed September 25, 2000 due to negative public opinion. Intersection returned to AWSC. Functional Class: Local ICD estimated from Google Maps linework. |
Clemmons,
NC Forsyth Co. United States |
Fraternity Church Rd. / Hope Church Rd. (36.02653, -80.34301) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 28.0113 |
Other (At-Grade) Single-Lane |
1999 | Existing three-legged intersection converted to a four-legged intersection by adding new Clemmons Middle School driveway at the roundabout. Previously controlled by one-way stop Functional Class: Local ICD estimated from Google Maps linework. |
Las Vegas (Summerlin),
NV Clark Co. United States |
Desert Primrose Ln. / Desert Marigold Ln. / Blue Willow Ln. (36.14060, -115.32090) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 40.5093 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1999 | Functional Class: Collector ICD estimated from Google Maps linework. |
Las Vegas (Summerlin),
NV Clark Co. United States |
Desert Primrose Ln. / Spotted Leaf Ln. / Pavillion Center Dr. (36.14070, -115.33120) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 41.4737 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1999 | Functional Class: Collector ICD estimated from Google Maps linework. |
Las Vegas (Summerlin),
NV Clark Co. United States |
Havenwood Ave. / Spotted Leaf Ln. / Golden Willow (36.13300, -115.33040) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.6194 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1999 | Functional Class: Collector ICD estimated from Google Maps linework. |
Annapolis,
MD Anne Arundel Co. United States |
Gateway Circle [MD 450 (West St.) / Taylor Ave. / Spa Rd.] (38.97630, -76.50486) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 54.8640 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1999 | Elliptical shaped. ICD = 180 ft x 160 ft. Opened December 1999. |
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 41.1480 |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
1999 | Unstriped circulatory roadway. |
(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. |
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. |
Brattleboro,
VT Windham Co. United States |
Rte 9 / Rte 5 (42.88500, -72.55670) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 51.8160 |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
1999 | Adjacent to I-89. Heavy truck volume (>7%). |
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. |
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. |
Bend,
OR Deschutes Co. United States |
SW Century Dr. / SW Colorado Ave. / SW Chandler Ave. (44.04180, -121.33200) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 57.9120 |
Other (At-Grade) Single-Lane |
1999 | Completed Fall 1999. One leg comes in at 60 degree angle. Right-turn bypass lane part of conceptual design but removed for final. First modern roundabout in Oregon. |
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 28.9560 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1999 | Two-lane circulatory roadway across northern half. |
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 45.7200 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max) |
1999 | |
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. |
Davis,
CA Yolo Co. United States |
Shasta Dr. / Olympic Dr. (38.55540, -121.77620) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 24.2833 |
Other (At-Grade) Single-Lane |
1999 | Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework. |
Denver,
CO Denver Co. United States |
Chopper Cir. / VIP Parking / 9th St. / Access Rd (39.74721, -105.00810) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 52.3424 |
Other (At-Grade) Single-Lane |
1999 | Located at Pepsi Center arena Functional Class: Collector ICD estimated from Google Maps linework. |
Reno,
NV Washoe Co. United States |
Wedekind Rd. / Clear Acre Ln. (39.55157, -119.78930) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 23.0222 |
Other (At-Grade) Single-Lane |
1999 | Previously controlled by two-way stop ICD estimated from Google Maps linework. |
Superior,
CO Boulder Co. United States |
5th Ave. / Center Dr. (39.95764, -105.17190) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 31.1262 |
Other (At-Grade) Single-Lane |
1999 | Serves Costco and Target as part of 750,000 square foot shopping center. Functional Class: Local ICD estimated from Google Maps linework. |
Eugene,
OR Lane Co. United States |
N. Terry St. / Roosevelt Blvd. (44.06371, -123.18825) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 20.5969 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Lakewood,
CO Jefferson Co. United States |
Allison Pkwy. / Civic Center (39.70906, -105.08630) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 31.2390 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Carson City,
NV Carson City Co. United States |
E 5th St. / Fairview Dr. (39.16090, -119.72790) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 33.5280 |
Other (At-Grade) Single-Lane |
1999 | |
Northglenn,
CO Adams Co. United States |
Melody Dr. / Kennedy Dr. (39.89222, -104.99270) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.6541 |
Other (At-Grade) Single-Lane |
1999 | Roundabout is single-lane except for NB approach with separate RT lane. ICD estimated from Google Maps linework. |
Greenwood Village,
CO Arapahoe Co. United States |
S. Monaco St. / E. Berry Ave. (39.61682, -104.91340) |
Traffic Calming Circle Existing |
Unknown Unknown |
3 Approaches 0 Driveways 11.9603 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Greenwood Village,
CO Arapahoe Co. United States |
S. Monaco St. / E. Dorado Ave. (39.61319, -104.91350) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 9.2007 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Greenwood Village,
CO Arapahoe Co. United States |
S. Monaco St. / E. Dorado Pl. (39.61199, -104.91350) |
Traffic Calming Circle Existing |
Unknown Unknown |
3 Approaches 0 Driveways 11.0410 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Greenwood Village,
CO Arapahoe Co. United States |
S. Monaco St. / E. Ida Ave. (39.61082, -104.91350) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 14.7216 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Greenwood Village,
CO Arapahoe Co. United States |
S. Monaco St. / E. Powers Ave. (39.61501, -104.91350) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 9.2005 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Greenwood Village,
CO Arapahoe Co. United States |
S. Monaco St. / E. Prentice Pl. (39.61977, -104.91350) |
Traffic Calming Circle Existing |
Unknown Unknown |
3 Approaches 0 Driveways 14.7197 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |
Bloomington,
IN Monroe Co. United States |
High St. / Winslow Rd. / Rogers Rd. (39.13631, -86.50819) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.9078 |
Other (At-Grade) Single-Lane |
1999 | $497,000 construction cost. ICD estimated from Google Maps linework. |
Willimantic,
CT Windham Co. United States |
Eastern Rd. / (driveway) (ECSU Campus by clock tower) (41.72001, -72.21691) |
Traffic Calming Circle Existing |
All-Way Yield None |
3 Approaches 0 Driveways 24.0693 |
Other (At-Grade) Single-Lane |
1999 | Not properly signed and painted, but lots of potential for demonstrating this intersection concept. ICD estimated from Google Maps linework. |
Bel Air,
MD Harford Co. United States |
Tollgate Rd. / Wheel Rd. (39.48999, -76.32914) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.5729 |
Other (At-Grade) Single-Lane |
1999 | http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework. |
Davis,
CA Yolo Co. United States |
Moore Blvd. / Rockwell Dr. (38.56830, -121.72630) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 25.2127 |
Other (At-Grade) Single-Lane |
1999 | Date estimated. Functional Class: Local ICD estimated from Google Maps linework. |
Davis,
CA Yolo Co. United States |
Moore Blvd. / Wright Blvd. (38.56490, -121.71860) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 24.2801 |
Other (At-Grade) Single-Lane |
1999 | Date estimated. Functional Class: Local ICD estimated from Google Maps linework. |
Bel Air,
MD Harford Co. United States |
MD 7 / Holly Oaks Drive (39.48848, -76.21669) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 34.1039 |
Other (At-Grade) Single-Lane |
1999 | Opened September 1999. ICD estimated from Google Maps linework. |
Millington,
MD Kent Co. United States |
MD 291 / US 301 SB Ramps (39.26463, -75.86641) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 31.4393 |
Freeway Ramps (Grade-Separated) Single-Lane |
1999 | Opened August 1999. ICD estimated from Google Maps linework. |
Millington,
MD Kent Co. United States |
MD 291 / US 301 NB Ramps (39.26386, -75.86260) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.6656 |
Freeway Ramps (Grade-Separated) Single-Lane |
1999 | Opened August 1999. ICD estimated from Google Maps linework. |
Castle Marina,
MD Queen Annes Co. United States |
MD 18 / Castle Marina Rd. (38.97871, -76.28938) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.7819 |
Other (At-Grade) Single-Lane |
1999 | Previously controlled by two-way stop ICD estimated from Google Maps linework. |