19542 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
Richland, WA
Benton Co.
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 Co.
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 Co.
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 Co.
United States
Happy Valley Rd. / I-17 NB Ramps
(33.71291, -112.11477)
Roundabout
Removed
All-Way Yield
None
4 Approaches
0 Driveways
64.0077
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2020 Initially constructed 2002, revised 2005. Removed in 2020, replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw. https://azdot.gov/adot-blog/requiem-roundabouts-least-ones-happy-valley-road 21442
Phoenix, AZ
Maricopa Co.
United States
Happy Valley Rd. / I-17 SB Ramps
(33.71292, -112.12019)
Roundabout
Removed
All-Way Yield
None
3 Approaches
0 Driveways
62.4840
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2020 Initially constructed 2002, revised 2005. Removed in 2020, replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw. https://azdot.gov/adot-blog/requiem-roundabouts-least-ones-happy-valley-road 21442
Frisco, CO
Summit Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 (1 lane)
2007 Mini-roundabout. ICD estimated from Google Maps linework.
Burtonsville, MD
Montgomery Co.
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 Co.
United States
Maple Rd. / M-14 WB Ramps
(42.30178, -83.78112)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
159.9999
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2007
Ann Arbor, MI
Washtenaw Co.
United States
Maple Rd. / M-14 EB Ramps
(42.29992, -83.78104)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
48.7680
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2007
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
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 Co.
United States
Apache Trl. / I-10 EB Ramps
(33.92071, -116.80680)
Roundabout
Existing
All-Way Yield
At-grade Rail Crossing Signals/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 Co.
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 Co.
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 Co.
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 Co.
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.
New Berlin, WI
Waukesha Co.
United States
CTH Y (Racine Ave.) / I-43 NB Ramps
(42.93221, -88.15884)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
41.9731
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2009 Opened November 2009. ICD estimated from Google Maps linework.
New Berlin, WI
Waukesha Co.
United States
CTH Y (Racine Ave.) / I-43 SB Ramps
(42.93426, -88.15884)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
47.2182
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2009 Opened November 2009. ICD estimated from Google Maps linework.
New Berlin, WI
Waukesha Co.
United States
Moorland Rd. (CTH O) / I-43 SB Ramps
(42.95341, -88.10897)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
67.3087
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2008 Opened November 2008. ICD estimated from Google Maps linework.
Emporia, KS
Lyon Co.
United States
I-35 / US 50 Connector
(38.41494, -96.22918)
Roundabout
Existing
All-Way Yield
None
0 Approaches
0 Driveways
97.3226
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2008 New interchange configuration. Half double-lane, half triple-lane. Opened November 2008. ICD estimated from Google Maps linework.
Emporia, KS
Lyon Co.
United States
US 50 Connector / US 50
(38.41225, -96.22947)
Roundabout
Existing
All-Way Yield
None
0 Approaches
0 Driveways
85.3440
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2008 New interchange configuration. Half double-lane, half triple-lane. Opened November 2008. Modified 2011-2013 to reduce lanes. NCHRP Synthesis 488. 21442
Lawrence, KS
Douglas Co.
United States
McDonald Dr. / I-70 WB Ramps
(38.99075, -95.25724)
Roundabout
Existing
All-Way Yield
None
2 Approaches
0 Driveways
66.8368
Freeway Ramps (Grade-Separated)
Single-Lane
2008 Opened November 2008. Replaced trumpet interchange. ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States
I-70 / Exit 204
(38.99456, -95.22959)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
69.6179
Freeway Ramps (Grade-Separated)
Single-Lane
2011 Replaced trumpet interchange. ICD estimated from Google Maps linework.
Grass Valley, CA
Nevada Co.
United States
E. Main St. / Idaho-Maryland Rd. / SR 20 WB Ramps
(39.22168, -121.05380)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
33.3091
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2008 ICD estimated from Google Maps linework.
Bellingham, WA
Whatcom Co.
United States
Northwest Ave. / I-5 NB Ramp
(48.78500, -122.50420)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
35.4117
Freeway Ramps (Grade-Separated)
Single-Lane
2010 RT bypass lane on southbound approach. ICD estimated from Google Maps linework.
Yakima, WA
Yakima Co.
United States
E. Valley Mall Blvd. / I-82 EB Ramps
(46.56298, -120.47290)
Roundabout
Existing
Unknown
Unknown
5 Approaches
0 Driveways
54.1971
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2010 ICD estimated from Google Maps linework.
Yakima, WA
Yakima Co.
United States
E. Valley Mall Blvd. / I-82 WB Ramps
(46.56298, -120.47170)
Roundabout
Existing
Unknown
Unknown
3 Approaches
0 Driveways
98.5403
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2011 ICD estimated from Google Maps linework.
Cheyenne, WY
Laramie Co.
United States
High Plains Rd. / I-25 SB Ramps
(41.06202, -104.87730)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
50.4293
Freeway Ramps (Grade-Separated)
Single-Lane
2010 ICD estimated from Google Maps linework.
Cheyenne, WY
Laramie Co.
United States
High Plains Rd. / I-25 NB Ramps
(41.06046, -104.87620)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
55.8337
Freeway Ramps (Grade-Separated)
Single-Lane
2010 Only 3 of the 5 approaches are currently in service. One is under construction for the new Southeast Wyoming Welcome Center. The last is a future extension of High Plains to the east. ICD estimated from Google Maps linework.
Cheyenne, WY
Laramie Co.
United States
Vandehei Ave. / I-25 NB Ramps / Hynds Blvd.
(41.18365, -104.83710)
Roundabout
Existing
All-Way Yield
None
6 Approaches
0 Driveways
46.7405
Freeway Ramps (Grade-Separated)
Single-Lane
2011 Previously controlled by one-way stop ICD estimated from Google Maps linework.
Cheyenne, WY
Laramie Co.
United States
Vandehei Ave. / I-25 SB Ramps / Bishop Blvd.
(41.18365, -104.83900)
Roundabout
Existing
All-Way Yield
None
6 Approaches
0 Driveways
44.9428
Freeway Ramps (Grade-Separated)
Single-Lane
2011 Previously controlled by one-way stop ICD estimated from Google Maps linework.
Blaine, WA
Whatcom Co.
United States
I-5 SB Ramps / Peace Portal Dr. / Marine Dr.
(48.99723, -122.75250)
Roundabout
Existing
All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling approach only)
4 Approaches
0 Driveways
26.6422
Freeway Ramps (Grade-Separated)
Single-Lane
2010 May 2010. Roundabout is ~200 ft from railroad crossing. ICD estimated from Google Maps linework.
Blaine, WA
Whatcom Co.
United States
I-5 NB Ramps / D St. / 2nd St.
(48.99810, -122.75140)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
33.6939
Freeway Ramps (Grade-Separated)
Single-Lane
2010 May 2010. ICD estimated from Google Maps linework.
Burlington, WA
Skagit Co.
United States
Chuckanut Dr. (SR 11) / I-5 SB Ramps / Josh Wilson Rd.
(48.48586, -122.33860)
Roundabout
Existing
All-Way Yield
None
0 Approaches
0 Driveways
39.5803
Freeway Ramps (Grade-Separated)
Single-Lane
2010 September 2010. ICD estimated from Google Maps linework.
Burlington, WA
Skagit Co.
United States
Chuckanut Dr. (SR 11) / I-5 NB Ramps / Old Hwy 99
(48.48357, -122.33550)
Roundabout
Existing
All-Way Yield
None
0 Approaches
0 Driveways
34.8323
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2010 October 2010. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States
E 136th St. / Keystone Pkwy NB Ramps
(39.98598, -86.11404)
Roundabout
Existing
All-Way Yield
Metering Signal
3 Approaches
0 Driveways
38.1000
Freeway Ramps (Grade-Separated)
Single-Lane
2009 Part of tight diamond interchange with raindrop shape central island. Modified in 2016-2017 to add metering signals. Northbound ramp from Keystone Pkwy has a metering signal (PHB) that activates during peak hours when triggered by a long westbound queue. Eastbound approach has a metering signal (PHB) that activates during peak hours when triggered by a long northbound queue. 21442
Carmel, IN
Hamilton Co.
United States
E 136th St. / Keystone Pkwy SB Ramps
(39.98581, -86.11488)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
31.1134
Freeway Ramps (Grade-Separated)
Single-Lane
2009 Part of tight diamond interchange with raindrop shape central island. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States
E 126th St. / Keystone Pkwy NB Ramps
(39.97122, -86.11223)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
39.3577
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2009 Part of tight diamond interchange with raindrop shape central island. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States
E 126th St. / Keystone Pkwy SB Ramps
(39.97122, -86.11327)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
35.6965
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2009 Part of tight diamond interchange with raindrop shape central island. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States
E Carmel Dr. / Keystone Pkwy NB Ramps
(39.96208, -86.11313)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
36.6167
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2010 Part of tight diamond interchange with raindrop shape central island. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States
E Carmel Dr. / Keystone Pkwy SB Ramps
(39.96198, -86.11397)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
34.7859
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2010 Part of tight diamond interchange with raindrop shape central island. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States
E 116th St. / Keystone Pkwy NB Ramps
(39.95663, -86.11353)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
43.0280
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2009 Part of tight diamond interchange with raindrop shape central island. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States
E 116th St. / Keystone Pkwy SB Ramps
(39.95665, -86.11430)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
39.3660
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2009 Part of tight diamond interchange with raindrop shape central island. ICD estimated from Google Maps linework.
Carmel, IN
Hamilton Co.
United States
E 106th St. / Keystone Pkwy NB Ramps
(39.94169, -86.11259)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
34.7962
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2009 Part of tight diamond interchange with raindrop shape central island. ICD estimated from Google Maps linework.