|
City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways / ICD (m) |
Functional Class / LaneType |
Year Completed | Comments |
|---|---|---|---|---|---|---|---|
|
Avon,
CO Eagle 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 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. |
|
De Pere,
WI Brown 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. |
|
Ritchie,
MD Prince Georges 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 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 |
|
De Pere,
WI Brown 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. |
|
Ellicott City,
MD Howard 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 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 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 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. |
|
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 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 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 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. |
|
Green Bay,
WI Brown 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. |
|
Arcata,
CA Humboldt United States |
Guintoli Ln. / US 101 SB Ramps (40.90400, -124.08920) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 39.7180 |
Freeway Ramps (Grade-Separated) Single-Lane |
2005 | ICD estimated from Google Maps linework. |
|
Arcata,
CA Humboldt United States |
Guintoli Ln. / US 101 NB Ramps (40.90492, -124.08510) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 34.3015 |
Freeway Ramps (Grade-Separated) Single-Lane |
2005 | ICD estimated from Google Maps linework. |
|
Kingston,
NY Ulster United States |
I-587 / Rte. 28 / I-87 / Washington Ave. (41.94362, -74.02840) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 57.7424 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
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. ICD estimated from Google Maps linework. |
|
Newton,
KS Harvey United States |
Broadway St. / I-135 Ramps (38.05000, -97.32250) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.1441 |
Freeway Ramps (Grade-Separated) Single-Lane |
2003 | Single-point interchange. Near roundabout interchange at I-135/1st Street. Roundabout completed January 2002, ramps from I-135 to the roundabout reopened March 2002. Eliptical structure incorporating both NB and SB ramps. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Topeka,
KS Shawnee United States |
46th St. / US 75 Ramps (39.12934, -95.71959) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 68.5587 |
Freeway Ramps (Grade-Separated) Single-Lane |
2002 | Roundabout under structure as part of single-point interchange. Elliptical roundabout. Original intersection was at grade. Completed November 2002. ICD estimated from Google Maps linework. |
|
Anchorage,
AK Anchorage United States |
Dowling Rd. / New Seward Hwy SB Ramps (61.16636, -149.85780) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.1352 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2004 | Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Anchorage,
AK Anchorage United States |
Dowling Rd. / New Seward Hwy NB Ramps (61.16637, -149.85520) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.0151 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2004 | Spiral striping. ICD estimated from Google Maps linework. |
|
Lewisville,
NC Forsyth 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. |
|
St. George,
UT Washington United States |
E. Brigham Rd. / I-15 NB Ramps (37.05939, -113.58350) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 42.8889 |
Freeway Ramps (Grade-Separated) Single-Lane |
2006 | Raindrop-shaped interchange terminal. ICD estimated from Google Maps linework. |
|
Scaggsville,
MD Howard United States |
MD 216 / US 29 SB Ramps (39.14562, -76.90418) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 53.7228 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2001 | Series of 4 roundabouts. ICD estimated from Google Maps linework. |
|
Scaggsville,
MD Howard United States |
MD 216 / US 29 NB Ramps / Ice Crystal Dr. (39.14476, -76.89799) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 53.7234 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2001 | Series of 4 roundabouts. ICD estimated from Google Maps linework. |
|
Millington,
MD Kent 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 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. |
|
Gig Harbor,
WA Pierce United States |
Borgen Blvd. / SR 16 NB Ramps / Burnham Dr. (47.35843, -122.61260) |
Roundabout Existing |
All-Way Yield None |
6 Approaches 0 Driveways 47.7339 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2001 | Oval shaped central island. 6 legged configuration includes a on-ramp (outbound)leg. Central island is used as a roadway storm detention pond. Completed Summer/Fall 2001. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Richland,
WA Benton United States |
Steptoe Dr. / SR 240 EB Ramps / Columbia Park Trl. (46.23893, -119.24546) |
Roundabout Existing |
All-Way Yield Metering Signal |
5 Approaches 0 Driveways 49.5635 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2007 | 5th leg is on-ramp to SR 240. Opened November 2007. Lane configuration reduced in 2016. Modified in 2018 to add metering signal. According to local news (link below) they started metering the traffic on the westbound Columbia Park Trail approach in 2018. It only turns on when traffic coming off the freeway gets backed up. https://97rockonline.com/tri-cities-roundabout-gets-new-metered-traffic-light-wait-what/ 21442 |
|
St. George,
UT Washington United States |
E. Brigham Rd. / I-15 SB Ramps / Pioneer Rd. (37.05999, -113.58560) |
Roundabout Existing |
All-Way Yield None |
6 Approaches 0 Driveways 78.1526 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2006 | Combines interchange ramps and frontage road. ICD estimated from Google Maps linework. |
|
Advance,
NC Davie United States |
NC 801 / I-40 EB Ramps (36.00655, -80.44083) |
Roundabout Removed |
All-Way Yield None |
3 Approaches 0 Driveways 17.3907 |
Freeway Ramps (Grade-Separated) Single-Lane |
2002 | Developer-built "temporary" intersection fix. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Phoenix,
AZ Maricopa United States |
Happy Valley Rd. / I-17 NB Ramps (33.71291, -112.11477) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 64.0077 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2002 | Revised 2005. Planned removal in 2020 to be replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw. 21442 |
|
Phoenix,
AZ Maricopa United States |
Happy Valley Rd. / I-17 SB Ramps (33.71292, -112.12019) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 209.9996 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2002 | Revised 2005. Planned removal in 2020 to be replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw 21442 |
|
Frisco,
CO Summit United States |
SH 9 / I-70 WB Ramps (39.59339, -106.09700) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 34.0524 |
Freeway Ramps (Grade-Separated) Single-Lane |
2000 | Highway ref. pt. 70-202.35. ICD estimated from Google Maps linework. |
|
Gig Harbor,
WA Pierce United States |
Borgen Blvd. / SR 16 SB Ramps (47.35868, -122.61610) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.8342 |
Freeway Ramps (Grade-Separated) Single-Lane |
2004 | Opened March 2004. ICD estimated from Google Maps linework. |
|
Kaukauna,
WI Outagamie United States |
CTH J / US 41 SB Ramps (44.30645, -88.24948) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.8965 |
Freeway Ramps (Grade-Separated) Single-Lane |
2010 | Opened October 11, 2010. ICD estimated from Google Maps linework. |
|
Columbia,
MO Boone United States |
Business Loop 70 / I-70 WB Ramps / Creasy Springs Rd. (38.96655, -92.35241) |
Roundabout Removed |
All-Way Yield Unknown |
5 Approaches 0 Driveways 94.7178 |
Freeway Ramps (Grade-Separated) Single-Lane |
1996 | First roundabout in Missouri by Missouri DOT. Originally built in 1996 per article: https://www.voxmagazine.com/news/all-about-roundabouts-in-columbia/article_93724b2b-8b20-5228-b4de-315c5c3d2004.html. Replaced with roundabout to immediate west. ICD estimated from Google Maps linework. |
|
Carson City,
NV Carson City United States |
Arrowhead Dr. / I-580 SB Ramp (39.19810, -119.77540) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 27.7669 |
Freeway Ramps (Grade-Separated) Single-Lane |
2002 | Future SB on-ramp for Carson City Freeway (I-580). Overpass and roundabouts completed in 2002; freeway ramps completed ~2005. ICD estimated from Google Maps linework. |
|
Carson City,
NV Carson City United States |
Arrowhead Dr. / I-580 NB Ramps / Imus Rd. (39.19840, -119.77380) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.6923 |
Freeway Ramps (Grade-Separated) Single-Lane |
2002 | NB off-ramp for Carson City Freeway (I-580) and extension of Imus Road. Overpass and roundabouts completed in 2002. ICD estimated from Google Maps linework. |
|
Sterling Heights,
MI Macomb United States |
Van Dyke Ave. (M-53) / 18 1/2 Mile Rd. (42.60148, -83.03119) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 76.2000 |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
2005 | Completed June 2005. |
|
Kaukauna,
WI Outagamie United States |
CTH J / US 41 NB Ramps (44.30463, -88.24939) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 37.6070 |
Freeway Ramps (Grade-Separated) Single-Lane |
2010 | Opened October 11, 2010. ICD estimated from Google Maps linework. |
|
Avon,
CO Eagle United States |
William J Post Blvd. / I-70 WB Ramps (39.62759, -106.49460) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.6349 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2003 | ICD estimated from Google Maps linework. |
|
Avon,
CO Eagle United States |
William J Post Blvd. / I-70 EB Ramps (39.62714, -106.49610) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 37.7153 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2003 | ICD estimated from Google Maps linework. |
|
Newton,
KS Harvey United States |
First St. / I-135 Ramps (38.04250, -97.32240) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 65.8419 |
Freeway Ramps (Grade-Separated) Single-Lane |
2003 | Single-point interchange. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Hanover,
MD Anne Arundel United States |
Arundel Mills Blvd. / MD 295 NB Ramps (39.15573, -76.74459) |
Roundabout Removed |
All-Way Yield None |
3 Approaches 0 Driveways 26.8575 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2002 | ICD estimated from Google Maps linework. |
|
Hanover,
MD Anne Arundel United States |
Arundel Mills Blvd. / MD 295 SB Ramps (39.15677, -76.74617) |
Roundabout Removed |
All-Way Yield None |
2 Approaches 0 Driveways 66.6797 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2002 | ICD estimated from Google Maps linework. |
|
Jessup,
MD Howard United States |
Canine Rd. / MD 32 EB Ramps (39.10101, -76.76953) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.0005 |
Freeway Ramps (Grade-Separated) Single-Lane |
2001 | ICD estimated from Google Maps linework. |
|
Truckee,
CA Nevada United States |
Hwy 89 / I-80 EB Ramps (39.32243, -120.20770) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 55.4354 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2005 | ICD estimated from Google Maps linework. |
|
Camp Verde,
AZ Yavapai United States |
Middle Verde Rd. / I-17 NB Ramps (34.61039, -111.86160) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 34.4040 |
Freeway Ramps (Grade-Separated) Single-Lane |
2006 | ICD estimated from Google Maps linework. |
|
Truckee,
CA Nevada United States |
Hwy 89 / I-80 WB Ramps (39.32386, -120.20760) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 40.6518 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2005 | ICD estimated from Google Maps linework. |
|
Acoma Indian Reservation,
NM McKinley United States |
SH 30 / I-40 WB Ramps (35.07505, -107.56110) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 65.4884 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2010 | Merging right-turn bypass lane on north leg. Series of 3 roundabouts. ICD estimated from Google Maps linework. |
|
Brighton,
MI Livingston United States |
Lee Rd. / US 23 NB Ramps / Fieldcrest Dr. (42.50486, -83.75652) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 47.5461 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2005 | ICD estimated from Google Maps linework. |
|
Brighton,
MI Livingston United States |
Lee Rd. / US 23 SB Ramps (42.50605, -83.75954) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.8600 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2006 | Linked with Lee Rd/Whitmore Lake Rd roundabout. Previously controlled by one-way stop control ICD estimated from Google Maps linework. |
|
Buena Vista Township,
MI Saginaw United States |
M-81 / I-75 SB Ramps (43.45060, -83.89209) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 34.6818 |
Freeway Ramps (Grade-Separated) Single-Lane |
2006 | Right turn bypass lanes ICD estimated from Google Maps linework. |
|
Buena Vista Township,
MI Saginaw United States |
M-81 / I-75 NB Ramps (43.45056, -83.88958) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 34.6818 |
Freeway Ramps (Grade-Separated) Single-Lane |
2006 | Right turn bypass lanes ICD estimated from Google Maps linework. |
|
Chattanooga,
TN Hamilton United States |
SR 153 NB Ramps / Lake Resort Dr. (35.10986, -85.22842) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 55.6902 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2006 | At new intersection with new bridge and alignment of Lake Resort Drive. Former intersection was ~800 to the south. Non-symetric design. Some motions have two lanes. Previously controlled by signal ICD estimated from Google Maps linework. |
|
Chattanooga,
TN Hamilton United States |
SR 153 SB Ramps / N. Access Rd. / TVA offices (35.10868, -85.23122) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 97.7036 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2006 | N Access Road is a 4 lane arterial road. Fatal crash April 4, 2010. 11861-05. ICD estimated from Google Maps linework. |
|
Jessup,
MD Anne Arundel United States |
MD 198 (Laurel Fort Meade Rd.) / MD 32 EB Ramps (39.08997, -76.75736) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 53.3400 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2002 | Lanes reduced in 2010. 21442 |
|
Jessup,
MD Anne Arundel United States |
MD 198 (Laurel Fort Meade Rd.) / MD 32 WB Ramps (39.09178, -76.75688) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 53.3400 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2002 | Lanes reduced in 2010. 21442 |
|
Acoma Indian Reservation,
NM McKinley United States |
SH 30 / I-40 EB Ramps (35.07341, -107.56120) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 65.4897 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2010 | Merging right-turn bypass lane on west leg. Series of 3 roundabouts. ICD estimated from Google Maps linework. |
|
Glenwood Springs,
CO Garfield United States |
Mel Ray Rd. / I-70 WB Ramps / US 6 (39.56142, -107.36127) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 44.1965 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2006 | ICD estimated from Google Maps linework. |
|
Glenwood Springs,
CO Garfield United States |
Mel Ray Rd. / I-70 EB Ramps / Midland Ave. / Riverine Rd. (39.56019, -107.36139) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 46.9595 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2006 | 1 of 2 at Exit 114 on I-70, observed under construction in 2005. ICD estimated from Google Maps linework. |
|
Mesa,
AZ Maricopa United States |
Brown Rd. / Loop 202 SB Ramps (33.43689, -111.65280) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 42.8563 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2007 | ICD estimated from Google Maps linework. |
|
Mesa,
AZ Maricopa United States |
Brown Rd. / Loop 202 NB Ramps (33.43694, -111.64850) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 47.8396 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2007 | ICD estimated from Google Maps linework. |
|
Woburn,
MA Middlesex United States |
I-95 Ramps / MA 38 (Main St.) (42.49945, -71.15711) |
Rotary Existing |
Unknown Unknown |
4 Approaches 0 Driveways 30.8196 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
ICD estimated from Google Maps linework. | |
|
Revere,
MA Suffolk United States |
Copeland Circle - US 1 Ramps / MA 60 (Squire Rd.) (42.43008, -71.01710) |
Rotary Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
Retrofitted (November 2018) with multi-lane approaches/departures on the Route 1 ramps and roundabout style pavement markings and signs within the circulating roadway. 21442 | |
|
Boston,
MA Suffolk United States |
Willard St. / I-93 Ramps / Furnace Brook Expwy. (42.24208, -71.02673) |
Rotary Existing |
Unknown Unknown |
4 Approaches 0 Driveways 99.0276 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
ICD estimated from Google Maps linework. | |
|
Brighton,
CO Adams United States |
W. Bridge St. / US 85 NB Ramps (39.98683, -104.82320) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 43.0090 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2006 | Part of double-dumbbell interchange with two roundabouts and one storage lane into railroad crossing. ICD estimated from Google Maps linework. |
|
Brighton,
CO Adams United States |
W. Bridge St. / US 85 SB Ramps (39.98682, -104.82450) |
Roundabout Existing |
Unknown Unknown |
5 Approaches 0 Driveways 43.9241 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2006 | Part of double-dumbbell interchange with two roundabouts and one storage lane into railroad crossing. ICD estimated from Google Maps linework. |
|
Lewisville,
NC Forsyth United States |
Concord Church Rd. / US 421 NB Ramps (36.09143, -80.42963) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.8835 |
Freeway Ramps (Grade-Separated) Single-Lane |
2003 | Mirror image of other ramp. ICD estimated from Google Maps linework. |
|
Owatonna,
MN Steele United States |
CSAH 7 / TH 14 EB Ramps (44.05747, -93.27671) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 46.3480 |
Freeway Ramps (Grade-Separated) Single-Lane |
2012 | ICD estimated from Google Maps linework. |
|
Owatonna,
MN Steele United States |
CSAH 7 / TH 14 WB Ramps (44.05998, -93.27671) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 41.1964 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2012 | ICD estimated from Google Maps linework. |
|
North Pole,
AK Fairbanks North Star United States |
Badger Rd. / Richardson Hwy WB Ramps (64.75903, -147.35120) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 29.5390 |
Freeway Ramps (Grade-Separated) Single-Lane |
2007 | Series of three roundabouts. Raindrop-shaped central island. ICD estimated from Google Maps linework. |
|
North Pole,
AK Fairbanks North Star United States |
Badger Rd. / Richardson Hwy EB Ramps / Santa Claus Ln. (64.75820, -147.35170) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 31.5771 |
Freeway Ramps (Grade-Separated) Single-Lane |
2007 | Series of three roundabouts. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Stevensville,
MD Queen Annes United States |
Thompson Creek Rd. / US 50 EB Ramps (38.97599, -76.31046) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 16.7127 |
Freeway Ramps (Grade-Separated) Mini-roundabout |
2007 | Mini-roundabout. ICD estimated from Google Maps linework. |
|
Burtonsville,
MD Montgomery United States |
Dustin Rd. / US 29 SB Offramp / Columbia Pike (39.12256, -76.92656) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 43.5482 |
Freeway Ramps (Grade-Separated) Single-Lane |
2006 | Fatal crash October 14, 2007.: http://www.fredericknewspost.com/sections/news/display.htm?StoryID=66411. 11861-05. ICD estimated from Google Maps linework. |
|
Ann Arbor,
MI Washtenaw United States |
Maple Rd. / M-14 WB Ramp (42.30177, -83.78105) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 41.5169 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2007 | ICD estimated from Google Maps linework. |
|
Ann Arbor,
MI Washtenaw United States |
Maple Rd. / M-14 EB Ramp (42.29990, -83.78100) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.8680 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2007 | ICD estimated from Google Maps linework. |
|
Abbotsford,
BC Fraser Valley Regional District Canada |
Mt Lehman Rd. / Old Yale Rd. / Hwy 1 WB On-ramps (49.05889, -122.38131) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 44.0000 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2006 | |
|
Surrey,
BC Greater Vancouver Regional District Canada |
8 Ave. / Hwy 99 NB Ramps (49.01694, -122.75800) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 34.4645 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2005 | ICD estimated from Google Maps linework. |
|
Fort McMurray,
AB Wood Buffalo Canada |
Hwy 63 NB Ramps / King St. (56.70683, -111.35380) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.1574 |
Freeway Ramps (Grade-Separated) Single-Lane |
2003 | http://www.engineering.ualberta.ca/uofaengineer/article.cfm?article=40221&issue=39463 ICD estimated from Google Maps linework. |
|
Sheboygan,
WI Sheboygan United States |
STH 42 / I-43 NB Ramps (43.79261, -87.76325) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.0714 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2007 | Opened November 2007. http://www.sheboygan-press.com/apps/pbcs.dll/article?AID=/20071028/SHE0101/710280468/1973 ICD estimated from Google Maps linework. |
|
Sheboygan,
WI Sheboygan United States |
STH 42 / I-43 SB Ramps (43.79406, -87.76523) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 43.9673 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2007 | Opened November 2007. http://www.sheboygan-press.com/apps/pbcs.dll/article?AID=/20071028/SHE0101/710280468/1973 ICD estimated from Google Maps linework. |
|
Federal Way,
WA King United States |
S 317th St. / 28th Ave. S / I-5 HOV Access Ramps (47.31781, -122.29760) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 40.4836 |
Freeway Ramps (Grade-Separated) Single-Lane |
2006 | Opened February 2006. ICD estimated from Google Maps linework. |
|
Charlotte,
NC Mecklenburg United States |
Moores Chapel Rd. / I-485 NB Ramp (35.27366, -80.96478) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 37.0520 |
Freeway Ramps (Grade-Separated) Single-Lane |
2005 | Interchange terminal. Fatal crash May 14, 2008. ICD estimated from Google Maps linework. |
|
Charlotte,
NC Mecklenburg United States |
Moores Chapel Rd. / I-485 SB Ramp (35.27376, -80.96779) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 37.0520 |
Freeway Ramps (Grade-Separated) Single-Lane |
2005 | Interchange terminal. Fatal crash June 28, 2011. ICD estimated from Google Maps linework. |
|
Waynesville,
NC Haywood United States |
Hyatt Creek Rd. / US 23-US 74 SB Ramps (35.46494, -83.01322) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 30.1551 |
Freeway Ramps (Grade-Separated) Single-Lane |
2008 | ICD estimated from Google Maps linework. |
|
Columbus,
NC Polk United States |
NC 108 / I-26 EB Ramps (35.24493, -82.20628) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 35.1144 |
Freeway Ramps (Grade-Separated) Single-Lane |
2004 | Part of interchange - two-lane bridge. ICD estimated from Google Maps linework. |
|
Columbus,
NC Polk United States |
NC 108 / I-26 WB Ramps (35.24627, -82.20499) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 34.1384 |
Freeway Ramps (Grade-Separated) Single-Lane |
2007 | Part of interchange - two-lane bridge. ICD estimated from Google Maps linework. |
|
North Bend,
WA King United States |
SR 202 / I-90 EB Ramps (47.48782, -121.79730) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 41.9673 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2007 | Opened November 2007. ICD estimated from Google Maps linework. |
|
Annapolis Junction,
MD Anne Arundel United States |
Guilford Rd. / MD 32 WB Ramps (39.12294, -76.78472) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 32.4293 |
Freeway Ramps (Grade-Separated) Single-Lane |
2002 | Bypass lanes on all legs. ICD estimated from Google Maps linework. |
|
Hughesville,
MD Charles United States |
MD 231 / MD 5 NB Ramps (38.53426, -76.77790) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 54.1863 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2005 | ICD estimated from Google Maps linework. |
|
Hughesville,
MD Charles United States |
MD 231 / MD 5 SB Ramps (38.53381, -76.77969) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 58.8579 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2005 | ICD estimated from Google Maps linework. |
|
Avonport,
NS Kings Canada |
Trunk 1 / Hwy 101 WB Ramps / Oak Island Rd. (45.10019, -64.25748) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 60.9600 |
Freeway Ramps (Grade-Separated) Single-Lane |
2006 | |
|
Rio Puerco,
NM Bernalillo United States |
Central Ave. / I-40 EB Ramps (35.03048, -106.94750) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 68.4580 |
Freeway Ramps (Grade-Separated) Single-Lane |
2008 | Owned by New Mexico DOT. Previously controlled by stop control ICD estimated from Google Maps linework. |
|
Cabazon,
CA Riverside United States |
Apache Trl. / I-10 EB Ramps (33.92071, -116.80680) |
Roundabout Existing |
All-Way Yield At-Grade Rail Crossing Gates (controlling approach only) |
3 Approaches 0 Driveways 54.5087 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2008 | Opened July 11, 2008. http://www.pe.com/localnews/rivcounty/stories/PE_News_Local_S_circle21.46d763e.html. Railroad in close proximity. ICD estimated from Google Maps linework. |
|
Cabazon,
CA Riverside United States |
Apache Trl. / I-10 WB Ramps (33.92192, -116.80610) |
Roundabout Existing |
All-Way Yield None |
0 Approaches 0 Driveways 64.4184 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2008 | Opened July 11, 2008. http://www.pe.com/localnews/rivcounty/stories/PE_News_Local_S_circle21.46d763e.html Previously controlled by two way stop ICD estimated from Google Maps linework. |
|
Kennewick,
WA Benton United States |
SR 240 / US 395 SB Ramps (46.21697, -119.13980) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 47.9307 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2009 | June 2009. ICD estimated from Google Maps linework. |
|
Kennewick,
WA Benton United States |
SR 240 / US 395 NB Ramps / Columbia Dr. (46.21688, -119.13680) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 28.0973 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2009 | June 2009. ICD estimated from Google Maps linework. |
|
New Berlin,
WI Waukesha United States |
Moorland Rd. (CTH O) / I-43 NB Ramps / Rockridge Rd. (42.94913, -88.10900) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 47.2068 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane) |
2007 | Opened September 2007. ICD estimated from Google Maps linework. |