Roundabouts Database Index

29869 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
Airdrie, AB Alberta Canada	Reynolds Gate SW / Hillcrest Gate SW (51.25430, -114.01318)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8794	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2017-2020). ICD estimated from Google Maps linework.
Calgary, AB Division 6 Canada	Chaparral Valley Dr. SE / Chaparral Valley Gate SE / Chaparral Valley Grove SE (50.88197, -114.01471)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.0000	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2008).
Calgary, AB Division 6 Canada	Chaparral Valley Square SE / Chaparral Valley Dr. SE (50.88594, -114.01532)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.0000	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2008-2011).
Airdrie, AB Alberta Canada	Hillcrest Dr. SW / Hillcrest Gate SW (51.25391, -114.01550)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.8797	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2015-2016). ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	210 Ave. SE / Legacy Gate SE (50.86307, -114.01733)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.9377	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Legacy Gate SE / Legacy Main St. SE / Legacy Cir. SE (50.86087, -114.01734)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.4472	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Calgary, AB Division 6 Canada	Quarry Way SE / Quarry Gate SE (50.96118, -114.01967)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.0000	Other (At-Grade) Single-Lane	2011
Calgary, AB Alberta Canada	210 Ave. SE / Legacy Blvd. SE / Walgrove Dr. SE (50.86308, -114.02161)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.7682	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Legacy Main St. SE / Legacy Blvd. SE (50.86087, -114.02162)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.2011	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2013-2014). ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Walgrove Dr. SE / Walden Dr. SE (50.86556, -114.02248)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.6896	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Balzac, AB Division 6 Canada	Hwy 566 / Range Rd. 11 (15 St. NE) (51.21263, -114.02476)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2021	https://discoverairdrie.com/articles/balzac-traffic-circle-inches-closer-to-completion
Calgary, AB Division 6 Canada	Legacy Village Way SE / Legacy Village Rd. SE (50.85969, -114.02478)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.0000	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2015-2016).
Calgary, AB Alberta Canada	210 Ave. SE / Legacy Village Link SE (50.86406, -114.02573)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.7366	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Missoula, MT Missoula Co. United States	Southgate Mall Access Rd. / Mary Ave. (46.84412, -114.02685)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2016-2019).
Calgary, AB Alberta Canada	Walden Dr. SE / Walden Common SE (50.86741, -114.02729)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.9493	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Missoula, MT Missoula Co. United States	Paxson St/Southgate Mall Access (46.84396, -114.02899)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-lane w/ Traversable Central Island	2018	Year Completed estimated (2016-2019).
Calgary, AB Alberta Canada	Walden Dr. SE / Walden Blvd. SE / Walden Parade SE (50.86817, -114.03018)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.6725	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Missoula, MT Missoula Co. United States	Mary Ave. / Southgate Mall Access Rd. (46.84420, -114.03158)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2016-2019).
Airdrie, AB Alberta Canada	40 Ave. SW / Windsong Blvd. SW (51.25595, -114.03230)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.3426	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Airdrie, AB Division 6 Canada	Williamstown Blvd. NW / Reunion Blvd. NW (51.30299, -114.03377)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.0000	Other (At-Grade) Single-Lane	2012
Calgary, AB Alberta Canada	Walden Gate SE / Walden Dr. SE (50.87454, -114.03496)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.8849	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Walden Dr. SE / Walden Way SE (50.86982, -114.03733)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.3803	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Highfield Rd. SE / 26 Ave. SE / Dartmouth Rd. SE (51.03040, -114.04103)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling all approaches)	4 Approaches 0 Driveways 55.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Canadian Pacific Railway tracks through center of roundabout. Gates on circulatory roadway and on east and west approaches. http://www.minnowlake.ca/Roundabouts_in_Canada_2013%20(1).pdf Previous control: rail crossing signal (no gates); Yield on one approach.
Florence, MT Ravalli Co. United States	MT 203 (Eastside Hwy) / Eight Mile Creek Rd. (Lower Woodchuck Rd.) (46.63235, -114.04188)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.5456	Other (At-Grade) Single-Lane	2014	Through bypass lane on northwest leg; add-type right-turn bypass lane on northeast leg. ICD estimated from Google Maps linework.
Missoula, MT Missoula Co. United States	Union Pacific St. / O'Leary St. / Clark Fork Ln. (46.88880, -114.04560)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2003
Missoula, MT Missoula Co. United States	England Blvd. / Connery Way (46.89409, -114.04588)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.4619	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Missoula, MT Missoula Co. United States	Miller Creek Rd. / Lower Miller Creek Rd. / Upper Miller Creek Rd. (46.82569, -114.05048)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 39.2248	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011). ICD estimated from Google Maps linework.
Missoula, MT Missoula Co. United States	Mullan Rd. / Mary Jane Blvd. (46.88725, -114.05372)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2023	Year Completed estimated (2022-2023).
Missoula, MT Missoula Co. United States	South Ave. W / 33rd Ave. / Guardsman Ln. (46.84863, -114.06068)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2016
Mesquite, NV Clark Co. United States	Oasis Blvd. / Ivy Lee Crest (36.82714, -114.06800)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 64.0518	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	ICD estimated from Google Maps linework.
Missoula, MT Missoula Co. United States	Mullan Rd. / George Elmer Dr. (46.88749, -114.06835)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2023
Sylvan Lake, AB Alberta Canada	Hwy 11A E / Hwy 20 (52.31931, -114.06992)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.1525	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Crescent Blvd. SW / 45th Ave. SW / 4th St. SW (51.01302, -114.07132)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 25.5478	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
Missoula, MT Missoula Co. United States	Airway Blvd. / Expressway (46.91994, -114.07140)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.7875	Other (At-Grade) Single-Lane	2011	Four-lane approach roadways that drop right lane into right-turn bypass lanes on all approaches. Functional Class: Arterial ICD estimated from Google Maps linework.
Sylvan Lake, AB Division 8 Canada	Hwy 20 / Erickson Rd. (52.31537, -114.07144)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.0000	Other (At-Grade) Single-Lane	2019	https://www.sylvanlakenews.com/news/sylvan-lake-council-reallocates-over-1-million-for-intersection-upgrades/
Calgary, AB Alberta Canada	Crescent Blvd. SW / 42nd Ave. SW (51.01383, -114.07227)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 32.3098	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2007) ICD estimated from Google Maps linework.
Red Deer County, AB Division 8 Canada	Hwy 20 / Memorial Trl. / Township Road 384 (52.29009, -114.07341)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 39.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2024	Completed in October 2024. RRFB is located on the north leg only. Currently, Memorial Trail is only one lane in each direction, but can be upgraded to two lanes in the future.
Mesquite, NV Clark Co. United States	Oasis Blvd. / Canyon Crest Blvd. (36.83104, -114.07380)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 68.8283	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	ICD estimated from Google Maps linework.
Bentley, AB Division 8 Canada	Hwy 12 / Hwy 20 (52.46439, -114.07495)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.0000	Other (At-Grade) Single-Lane	2022	https://centralalbertaonline.com/articles/roundabout-construction-begins-on-highway-12-and-highway-20
Calgary, AB Alberta Canada	Silverado Dr. SW / Silverado Way SW (50.88153, -114.07758)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.4019	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Royal Ave. SW / Hope St. SW (51.03518, -114.07778)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 16.0000	Other (At-Grade) Single-Lane
Calgary, AB Alberta Canada	Silverado Blvd. SW / Silverado Dr. SW (50.88661, -114.07803)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.6587	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Royal Ave. SW / 7 St. SW (51.03518, -114.07938)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 18.0000	Other (At-Grade) Single-Lane
Calgary, AB Calgary Region Canada	8th St. / Frontenac Ave. (51.02937, -114.08350)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.5433	Other (At-Grade) Single-Lane	2005	Driveway serving house entering roundabout. ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Frontenac Ave. SW / 10th St. SW (51.02939, -114.08641)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 25.5387	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005). ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Silverado Blvd. SW / Silverado Way SW (50.88152, -114.08683)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.1978	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011). ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Frontenac Ave. SW / Carleton St. SW (51.02969, -114.08899)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.0771	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005). ICD estimated from Google Maps linework.
Sylvan Lake, AB Division 8 Canada	Crestview Blvd. / Cameron Close (52.29481, -114.09185)	Other Existing	Unknown None	3 Approaches 0 Driveways 24.0000	Other (At-Grade) Single-Lane	2014	No splitter islands.
Sylvan Lake, AB Division 8 Canada	Crestview Blvd. / (unknown) (52.29241, -114.09186)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 24.0000	Other (At-Grade) Single-Lane	2022	No splitter islands.
Olds, AB Division 6 Canada	Hwy 2A / 68 St. (51.77414, -114.09612)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.0000	Other (At-Grade) Single-Lane	2022	East leg stubbed. Year Completed estimated (2021-2022).
Sylvan Lake, AB Division 8 Canada	Hwy 11 (David Thompson Hwy.) / 50 St. / Hwy 781 (52.28232, -114.09704)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2023	Painted spiral in circulatory roadway. Previous control was stop control on south leg and yield control on north leg. Year Completed estimated (2022-2023).
Calgary, AB Alberta Canada	Scarboro Ave. SW / Sudbury Ave. SW / Shelbourne St. SW (51.04168, -114.10631)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 20.2754	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2008-2011). ICD estimated from Google Maps linework.
Mesquite, NV Clark Co. United States	Falcon Ridge Pkwy. / I-15 NB Ramps / W Mesquite Blvd. (36.80253, -114.10666)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 61.2035	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)	2012	Year Completed estimated (2011-2013). ICD estimated from Google Maps linework.
Mesquite, NV Clark Co. United States	Falcon Ridge Pkwy. / I-15 SB Ramps (36.80353, -114.10831)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 51.6398	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2012	Year Completed estimated (2011-2013). ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Flanders Ave. SW / Crowchild Trl. SW (NB Ramps) (51.01611, -114.11759)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2016
Calgary, AB Division 6 Canada	Woodpark Blvd. SW / 24 St. SW (50.93578, -114.11793)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2019-2020).
Calgary, AB Alberta Canada	Flanders Ave. SW / Richard Rd. SW (51.01632, -114.11900)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 42.8270	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	Fourth approach stubbed. ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Richard Rd. SW / Crowchild Trl. SW (SB Ramps) (51.01487, -114.11933)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 45.8338	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Sylvan Lake, AB Division 8 Canada	Hwy 11 (David Thompson Hwy.) / 60 St. / Range Road 15 (52.28193, -114.12092)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2023	Painted spirals in circulatory roadway. Year Completed estimated (2022-2023).
Calgary, AB Alberta Canada	Evanston Dr. NW / Evansridge Dr. NW / Evansridge Link NW (51.17364, -114.12159)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.6960	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Evanston Dr. NW / Evansborough Gate NW (51.17974, -114.12161)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.9376	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Sylvan Lake, AB Division 8 Canada	Springfield Blvd. / (unknown) (52.29534, -114.12423)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2017
Calgary, AB Division 6 Canada	Peacekeepers Way SW / Don Ethell Blvd. SW (51.00475, -114.12697)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.0000	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005).
Calgary, AB Division 6 Canada	Uxbridge Dr. NW / Ulster Rd. NW (51.06991, -114.12950)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.0000	Other (At-Grade) Single-Lane	2017
Calgary, AB Division 6 Canada	130 Ave. SW / Tsuut'ina Trl. NB Exit Ramp (50.93611, -114.13893)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max)	2020	Raindrop shaped.
(unincorporated), AB Alberta Canada	37 St. SW / Grey Eagle Dr. / Hwy 8 EB Ramps (51.00767, -114.14109)	Roundabout Removed	All-Way Yield Unknown	3 Approaches 0 Driveways 93.9364	Freeway Ramps (Grade-Separated) Single-Lane	2010	Year Completed estimated (2008-2011). Removed in 2018 as part of realignment project. http://www.swcrrproject.com/wp-content/uploads/2016/11/SWCRR_37Street_Glenmore_Jun5.pdf ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	37 St SW / Hwy 8 WB Ramps (51.00991, -114.14132)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 63.1222	Freeway Ramps (Grade-Separated) Single-Lane	2010	Year Completed estimated (2008-2011). ICD estimated from Google Maps linework.
(unincorporated), AB Alberta Canada	37 St. SW / Strathcona St. SW (51.00287, -114.14162)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 37.5784	Other (At-Grade) Unknown	2018	ICD estimated from Google Maps linework.
Tsuu T'ina Nation 145, AB Division 6 Canada	Buffalo Run Blvd. / 130 Ave. SW / Tsuut'ina Trl. SB Entrance Ramp (50.93654, -114.14333)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 50.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)	2020	Raindrop shaped. Merging right-turn bypass lane on west leg. Year Completed estimated (2019-2020).
Calgary, AB Alberta Canada	Sage Hill Blvd. NW / (unknown) (51.17362, -114.14495)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.4256	Other (At-Grade) Single-Lane	2013	Third leg stubbed. ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Sage Hill Blvd. NW / Sage Hill Gate NW (51.17112, -114.14500)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1816	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Sage Hill Blvd. NW / Sage Hill Passage NW (51.17053, -114.14708)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.4333	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Kincora Gate NW / Kincora Glen Rd. NW (51.16669, -114.14711)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.9434	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Sage Hill Blvd. NW / (unknown) (51.16999, -114.14965)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.6804	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	Fourth leg stubbed. ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Sage Valley Dr. NW / Sage Valley Rd. NW (51.17981, -114.15417)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.7019	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2008-2011). ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Sage Valley Dr. NW / Sage Berry Way NW (51.18022, -114.15696)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.6964	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2008-2011). ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Nolan Hill Dr. NW / Nolan Hill Blvd. NW (51.17149, -114.16061)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 65.1486	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Tsuu T'ina Nation 145, AB Division 6 Canada	Tsuut'ina Pkwy / Tsuut'ina Trl. SW NB Ramps (51.00090, -114.16348)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.0000	Freeway Ramps (Grade-Separated) Single-Lane	2020	Year Completed estimated (2020-2021).
Tsuu T'ina Nation 145, AB Division 6 Canada	Tsuut'ina Pkwy / Tsuut'ina Trl. SW SB Ramps (51.00130, -114.16953)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 55.0000	Freeway Ramps (Grade-Separated) Single-Lane	2021	Year Completed estimated (2020-2021).
Calgary, AB Alberta Canada	Nolan Hill Blvd. NW / Nolan Hill Dr. NW / Nolanhurst Way NW (51.17875, -114.17040)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.7025	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Calgary, AB Division 6 Canada	Westhills Way SW / Glenmore Trl. SW (Hwy 8-Hwy 201) WB Ramps (51.00996, -114.17395)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.0000	Freeway Ramps (Grade-Separated) Single-Lane	2020	Year Completed estimated (2020-2021).
Tsuu T'ina Nation 145, AB Division 6 Canada	Westhills Way SW / Tsuut'ina Pkwy. / Glenmore Trl. (Hwy 8-Hwy 201) EB Ramps (51.00743, -114.17479)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.0000	Freeway Ramps (Grade-Separated) Single-Lane	2020
Calgary, AB Division 6 Canada	Sarcee Trl. SW / Na'a Dr. SW / Trans-Canada Hwy EB Ramps (51.07800, -114.18891)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)	2017
Calgary, AB Division 6 Canada	34 Ave. NW / Sarcee Trl. NW (51.08368, -114.18893)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.0000	Other (At-Grade) Single-Lane	2022
Calgary, AB Division 6 Canada	Springborough Blvd. SW / Springborough Gate SW (51.03379, -114.19200)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.0000	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005).
Calgary, AB Division 6 Canada	Na'a Dr. SW / Na'a Plaza SW (51.07872, -114.19234)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 58.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2020
Calgary, AB Calgary Region Canada	Springbank Blvd. / Spring Mews (51.01849, -114.19630)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	1998
Calgary, AB Calgary Region Canada	Discovery Ridge Blvd. / Discovery Dr. (51.01179, -114.20000)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.0855	Other (At-Grade) Multilane (2 Lane, unspecified)	2001	Date estimated. ICD estimated from Google Maps linework.
Calgary, AB Calgary Region Canada	Springbank Blvd. / Springbank Dr. (51.01912, -114.20230)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 25.0000	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005).
Calgary, AB Alberta Canada	Na'a Dr SW / Bowfort Rd. NW (51.08097, -114.20761)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 47.2691	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Calgary, AB Division 6 Canada	Crowfoot Cir. NW / Crowfoot Parade / (transit center) (51.12465, -114.20779)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.0000	Other (At-Grade) Single-Lane	2008	Oval shaped. ICD = 53 m x 42 m. Year Completed estimated (2008-2012).
Calgary, AB Alberta Canada	Bowfort Rd. NW / Bowfort Rd. NW (51.08458, -114.20870)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 33.7610	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Piita Rise SW (Canada Olympic Dr SW) / Na'a Dr SW (51.08132, -114.21012)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 44.2675	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Calgary, AB Alberta Canada	Bowfort Rd. NW / Greenbriar Blvd. NW (51.08589, -114.21227)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 48.0143	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Calgary, AB Division 6 Canada	West Valley Rd. SW / 101 St. SW / 1 Ave. SW / Trans-Canada Hwy EB On-Ramp (51.08514, -114.23423)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Freeway Ramps (Grade-Separated) Single-Lane	2022
Calgary, AB Division 6 Canada	Lower Springbank Rd. (Township Rd. 241A) / Township Rd. 242 (51.03721, -114.24617)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.0000	Other (At-Grade) Single-Lane	2021
Calgary, AB Division 6 Canada	Valley Ridge Blvd. NW / Trans Canada Hwy EB Ramps (51.08743, -114.24755)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 67.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2022
Calgary, AB Alberta Canada	Valley Ridge Blvd. NW / Hwy 1 (Trans Canada Hwy) WB Offramp (51.08997, -114.24906)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.2574	Freeway Ramps (Grade-Separated) Single-Lane	2006	Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
Kalispell, MT Flathead Co. United States	Glacier Airport Rd. / (unknown) (48.30613, -114.24914)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 30.1875	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Calgary, AB Division 6 Canada	Nose Hill Dr. NW / Haskayne Dr. NW / Rosemont Blvd. NW (51.10814, -114.26887)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 48.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2021	Year Completed estimated (2020-2021).