|
City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways |
Functional Class / LaneType |
Year Completed | Comments |
|---|---|---|---|---|---|---|---|
|
Durango,
CO La Plata United States |
Jenkins Ranch Rd./Lizard Head (south) (37.28605, -107.84710) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways |
Other Single-Lane |
2004 | |
|
Durango,
CO La Plata United States |
Jenkins Ranch Rd./Lizard Head (north) (37.28920, -107.84310) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways |
Other Single-Lane |
2004 | |
|
Ellicott City,
MD Howard United States |
MD 104 (Waterloo Rd.)/MD 100 WB Ramps (39.22470, -76.80600) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Freeway Ramps Multilane (2 Lane) |
1999 | |
|
Federalsburg,
MD Caroline United States |
MD 307/MD 313/MD 318 (38.68938, -75.78949) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
1999 | Rural, installed for safety reasons Previously controlled by two-way stop |
|
Portland,
OR Multnomah United States |
SE Ladd Circle (45.50850, -122.64940) |
Other Existing |
Unknown None |
0 Approaches 0 Driveways |
Other Single-Lane |
||
|
Cedar Lake Township,
MN Scott United States |
SH 13 (Langford Ave.)/CR 2 (260th St.) (44.57259, -93.50546) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other 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 |
|
Mount Rainier,
MD Prince Georges United States |
US 1/34th St./Perry St. (38.93647, -76.96074) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways |
Other Multilane (2 Lane) |
2001 | Functional Class: Arterial |
|
Copley Township,
OH Summit United States |
Ridgewood Rd./Hametown Rd. (41.11395, -81.66791) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
2006 | Opened August 21, 2006. |
|
Decatur,
GA DeKalb United States |
N. Decatur Rd./Lullwater Rd. (33.78700, -84.32900) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Other Single-Lane |
2004 | Functional Class: Arterial |
|
Durango,
CO La Plata United States |
Jenkins Ranch Rd./Ophir Dr. (37.28321, -107.85120) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways |
Other Single-Lane |
2004 | |
|
Camp Verde,
AZ Yavapai United States |
Middle Verde/Cliff Castle (34.60927, -111.86130) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
2005 | |
|
De Pere,
WI Brown United States |
Grant St. (CTH EE)/Lawrence Dr. (44.44511, -88.09367) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
2008 | Opened September 30, 2008. |
|
Truckee,
CA Nevada United States |
Donner Pass Rd./W. River St./McIver Crossing (39.32510, -120.19200) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Other Single-Lane |
1998 | Fatal crash. 11861-05. Functional Class: Arterial |
|
Durango,
CO La Plata United States |
Jenkins Ranch Rd./Kennebec Dr. (37.29216, -107.84010) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways |
Other Single-Lane |
2003 | |
|
Dawsonville,
GA Dawson United States |
SR 9E (Lumpkin Campground Rd.)/Dawson Forrest Rd. (34.35427, -84.05168) |
Roundabout Existing |
All-Way Yield None |
0 Approaches 0 Driveways |
Other Single-Lane |
2007 | |
|
Modesto,
CA Stanislaus United States |
Chandon Dr./Calero Dr. (37.67642, -120.93380) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
2002 | |
|
Modesto,
CA Stanislaus United States |
Bowen Ave./Fremont Ave. (37.67470, -121.00260) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
2002 | Previously controlled by twsc |
|
Pearl,
MS Rankin United States |
MS 475 (Airport Rd.)/Old Brandon Rd. (32.29057, -90.07133) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways |
Other Single-Lane |
1997 | Use of paint to achieve (?) deflection. |
|
Gorham,
ME Cumberland United States |
US 202/Rte. 4/Rte. 237 (43.72846, -70.42525) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
1997 | Previously controlled by two-way stop |
|
Bel Air,
MD Harford United States |
Tollgate Rd./Marketplace Dr. (39.52092, -76.35262) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Other Single-Lane |
1996 | Three leg, off-set roundabout - off-set due to lack of r/w on top side of Functional Class: Collector |
|
Columbia,
MD Howard United States |
Banneker Rd./Cul-de-sac (39.21141, -76.87041) |
Neighborhood Traffic Circle Existing |
Unknown Unknown |
3 Approaches 0 Driveways |
Other Single-Lane |
Functional Class: Local | |
|
Topeka,
KS Shawnee United States |
Rice Rd./I-70 WB Ramps/Sycamore Dr. (39.03610, -95.62310) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Freeway Ramps 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. |
|
Topeka,
KS Shawnee United States |
Rice Rd./I-70 EB Ramps/Cyprus Drive (39.03190, -95.62320) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Freeway Ramps 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. |
|
Brattleboro,
VT Windham United States |
Rte. 9/Rte. 5 (42.88500, -72.55670) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Multilane (2 Lane) |
1999 | Adjacent to I-89. Heavy truck volume (>7%) Functional Class: Arterial |
|
Lakewood,
CO Jefferson United States |
Arbutus Dr./Red Rocks Community College (39.71903, -105.14840) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
2001 | Functional Class: Collector |
|
St. Simons,
GA Glynn United States |
Frederica Rd./Lawrence Rd. (31.21650, -81.37550) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Other Single-Lane |
2006 | |
|
Southampton,
NJ Burlington United States |
US 206/NJ 70 (Red Lion Circle) (39.88715, -74.74104) |
Rotary Existing |
Unknown Unknown |
4 Approaches 0 Driveways |
Other Single-Lane |
Traffic circle conversion Functional Class: Arterial | |
|
Washington,
DC N/A United States |
Sherman Circle (Kansas Ave./Illinois Ave./Crittenden St.) (38.94733, -77.02190) |
Rotary Existing |
All-Way Stop None |
6 Approaches 0 Driveways |
Other Multilane (2 Lane) |
Functional Class: Arterial | |
|
Washington,
DC N/A United States |
Grant Circle (New Hampshire Ave./Illinois Ave./Varnum St./NW 5th St.) (38.94312, -77.01926) |
Rotary Existing |
All-Way Stop None |
8 Approaches 0 Driveways |
Other Multilane (2 Lane) |
Functional Class: Arterial | |
|
Portland,
OR Multnomah United States |
NE 39th Ave./Glisan St. (45.52640, -122.62300) |
Other Existing |
All-Way Stop None |
4 Approaches 0 Driveways |
Other Multilane (2 Lane) |
Stop-controlled entries into circle. Bus stop within circulatory roadway. Historical rotary with stop control. Functional Class: Arterial | |
|
Beaverton,
OR Washington United States |
SW Teal Blvd./155th Ave./Nutcracker Ct. (45.44060, -122.83760) |
Other Existing |
All-Way Stop None |
4 Approaches 0 Driveways |
Other Single-Lane |
Characteristics of a roundabout, but yield signs replaced with stop signs in 1998. Functional Class: Collector | |
|
Berkeley,
CA Alameda United States |
Marin Ave./Los Angeles Ave./Del Norte St./Arlington Ave. (37.89015, -122.27240) |
Other Existing |
Two-Way Stop None |
6 Approaches 0 Driveways |
Other Single-Lane |
Free movement on Marin Ave.; rest are stop-controlled | |
|
Clackamas,
OR Clackamas United States |
Monterey Ave./Stevens Rd. (45.43780, -122.56390) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
2006 | Fourth leg serves New Hope Community Church parking lot. Functional Class: Collector |
|
Abingdon,
MD Harford United States |
Tollgate Rd./Montrose Way (39.48198, -76.32751) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
2003 | Elementary school and library to north, another school to south. Functional Class: Collector |
|
Washington,
DC N/A United States |
Sheridan Circle (Mass Ave./23rd St./R St.) (38.91214, -77.05065) |
Rotary Existing |
Uncontrolled None |
0 Approaches 0 Driveways |
Other Multilane (2 Lane) |
Functional Class: Arterial | |
|
Washington,
DC N/A United States |
Westmoreland Circle (Mass. Ave./Dalecarlia Pkwy/Western Ave.) (38.94892, -77.10097) |
Rotary Existing |
Uncontrolled None |
6 Approaches 0 Driveways |
Other Multilane (2 Lane) |
Functional Class: Arterial | |
|
Bel Air,
MD Harford United States |
Tollgate Rd./Westover Ln./Crisfield Dr. (39.46859, -76.32162) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other 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 |
|
Carmel,
IN Hamilton United States |
Old Meridian St./Grand Blvd. (39.97366, -86.14984) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Multilane (2 Lane) |
2008 | |
|
Port Orchard,
WA Kitsap United States |
Mile Hill Dr. (Hwy 166)/Bethel Ave. (47.53467, -122.62730) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Other Single-Lane |
1998 | Previously a Y Intersection. Opened June 1998. Previously controlled by two-way stop Functional Class: Arterial |
|
Malta,
NY Saratoga United States |
Rte 67 (Dunning St.)/I-87 NB Ramps (42.97052, -73.80057) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Other Multilane (2 Lane) |
2006 | Part of a series of 5 roundabouts. |
|
Modesto,
CA Stanislaus United States |
La Loma/James St./G St. (37.64360, -120.98740) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways |
Other Single-Lane |
1997 | Permanent installation with landscaping in place Previously controlled by two-way stop Functional Class: Collector |
|
Clackamas,
OR Clackamas United States |
Monterey Ave./Causey Ave./William Otty Rd. (45.44020, -122.55510) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Other Single-Lane |
2005 | Functional Class: Collector |
|
Montréal,
QC Montréal Region Canada |
Ave. Marie-Curie/Blvd. Alfred Nobel (45.48518, -73.76222) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Multilane (2 Lane) |
1998 | Completed November 1998. Functional Class: Collector |
|
(unincorporated),
OR Clackamas United States |
SE 147th Ave./Oregon Trail Dr./Hines Dr./Sieben Pkwy. (45.42280, -122.51240) |
Other Existing |
All-Way Stop None |
4 Approaches 0 Driveways |
Other Single-Lane |
||
|
Bend,
OR Deschutes United States |
SW Century Dr./Colorado Ave./Chandler Ave. (44.04180, -121.33200) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other 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. Previously controlled by one-way stop Functional Class: Arterial |
|
Bellevue,
WA King United States |
W. Lake Sammamish Pkwy. SE/Lakemont Blvd. SE (47.56776, -122.09980) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
1997 | Revised August 2005. Previously controlled by two-way stop Functional Class: Arterial |
|
Tallahassee,
FL Leon United States |
Sutor Road/Old Sutor Road (30.42957, -84.21212) |
Neighborhood Traffic Circle Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Other Single-Lane |
||
|
Port St. Lucie,
FL St. Lucie United States |
SE Westmoreland Blvd./Pine Valley St. (27.25530, -80.30157) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways |
Other Single-Lane |
||
|
Fort Pierce,
FL St. Lucie United States |
Avenue A/N. Indian River Dr. (27.44907, -80.32326) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other Single-Lane |
2000 | http://www.walkinginfo.org/pedsafe/casestudy.cfm?CS_NUM=14. 1997? |
|
Malta,
NY Saratoga United States |
Rte 67 (Dunning St.)/I-87 SB Ramps (42.97027, -73.80322) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways |
Other Multilane (2 Lane) |
2006 | Part of a series of 5 roundabouts. |