Roundabouts Database Index

28784 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
Rockledge, FL Brevard Co. United States	La Flor Dr. / San Miguel Ln. (28.29319, -80.71459)	Traffic Calming Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Rockledge, FL Brevard Co. United States	La Flor Dr. / Orion Way (28.29315, -80.71759)	Traffic Calming Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Rockledge, FL Brevard Co. United States	La Flor Dr. / Upmann Dr. (28.29316, -80.71963)	Traffic Calming Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Rockledge, FL Brevard Co. United States	San Beluga Way / Chedington Ln. (28.28848, -80.71452)	Traffic Calming Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Palm Bay, FL Brevard Co. United States	St. Johns Heritage Pkwy. SE / Mara Loma Blvd. SE (27.89617, -80.63120)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways 43.2813	Other (At-Grade) Single-Lane	2023
San Sebastian Farms, FL Brevard Co. United States	Mara Loma Blvd. SE / (unknown) (27.90438, -80.63981)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 42.6717	Other (At-Grade) Single-Lane	2023
South Patrick Shores, FL Brevard Co. United States	Berkeley St. / 1st Ave. (28.20050, -80.59852)	Other Existing	Other Unknown	4 Approaches 2 Driveways 0.0000	Other (At-Grade) Single-Lane		Painted splitter islands on three legs. Mix of yield and stop control.
Brest, Brest Brest Belarus	vul. Jankі Kupaly / Ulitsa Grodnenskaya (52.11510, 23.77892)	Unknown Existing	Unknown None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Janesville, IA Bremer Co. United States	Barrick Rd. / US 218 SB Ramps (42.64937, -92.45388)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.3400	Freeway Ramps (Grade-Separated) Single-Lane	2012
Janesville, IA Bremer Co. United States	Barrick Rd. / US 218 NB Ramps (42.64935, -92.44918)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Freeway Ramps (Grade-Separated) Single-Lane	2012
Waverly, IA Bremer Co. United States	1st Ave. NW / 8th St. NW (42.72669, -92.48061)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.2167	Other (At-Grade) Single-Lane	2005	Replaced "T" intersection at entry to Wartburg College school campus. ICD estimated from Google Maps linework.
Lochau, Vorarlberg Bregenz Austria	L190 (Lindauer Straße) / L18 (Bäumle) / Bahnhofstraße / (Lochau-Hörbranz Bahnhof entrance) (47.53005, 9.74279)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Bavel, North Brabant Breda Netherlands	Lange Bunder / Thoornseweg (51.57288, 4.81898)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 27.4650	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Bavel, North Brabant Breda Netherlands	Lange Bunder / Dorstseweg (51.57248, 4.82689)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 28.2076	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Bavel, North Brabant Breda Netherlands	Kerkstraat / Hof / Zuster Boomaarsstraat (51.56675, 4.82896)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 23.7567	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Bavel, North Brabant Breda Netherlands	Deken Dr. Dirckxweg / Roosbergseweg (51.56053, 4.82479)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 28.2150	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Břeclav, South Moravia Břeclav Czechia	Rte 425 / Sady 28. října 9 / Silingrova / (train station entrance) (48.75347, 16.89100)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Břeclav, South Moravia Břeclav Czechia	Stromořadní / Slovacka (48.75616, 16.89323)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Břeclav, South Moravia Břeclav Czechia	Rte 55 / Rte 425 / Lidická (48.77982, 16.90342)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Bryan, TX Brazos Co. United States	Woodville Rd. / Woody Ln. / Woodville Overpass / (parking) (30.71699, -96.38545)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.kbtx.com/video/2020/10/12/new-roundabout-opens-bryan/ https://www.bryantx.gov/wp-content/uploads/2020/01/01.07.2020-Woodville-Projects.jpg
Bryan, TX Brazos Co. United States	Oakmont Blvd. / Pendleton Dr. (30.66573, -96.29169)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2018	Northwest leg stubbed for future.
Bryan, TX Brazos Co. United States	Highpoint Dr. / Hillpoint Dr. (30.66730, -96.32802)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4308	Other (At-Grade) Single-lane w/ Traversable Central Island	2014
College Station, TX Brazos Co. United States	Veterans Pkwy. / (parking) (30.64202, -96.29761)	Other Existing	Other None	3 Approaches 0 Driveways 33.5270	Other (At-Grade) Single-Lane	2008	City athletic complex. Uncontrolled on major street; yield control on minor. Series of three.
Bryan, TX Brazos Co. United States	Miraloma Dr. (30.67444, -96.31147)	Other Existing	Uncontrolled None	2 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2008	No splitter islands or control.
Bryan, TX Brazos Co. United States	Eastchester Dr. / Gramercy Park Dr. (30.65461, -96.29199)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2011
Bryan, TX Brazos Co. United States	Wildflower Dr. / Towne Centre Way (30.66316, -96.32273)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6717	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Intersection of two low-volume collector roadways in a shopping center development. Circular roadway is two lanes wide (with no lane markings) plus a 13' truck apron.
Bryan, TX Brazos Co. United States	Miramont Blvd. / Miramont Cir. (30.67306, -96.30883)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2004	Gateway intersection of Miramont subdivision/country club development. At the main entry to the clubhouse facilities.
Bryan, TX Brazos Co. United States	Nash St. / Broadmoor Dr. (30.66954, -96.34609)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-Lane	2016	Previously a three-leg intersection with a one-way stop. Small-radius roundabout installed when apartment complex was built and driveway became the fourth leg of the intersection. All splitter islands are mountable to allow shortcut left turns by ladder trucks and WB-67 vehicles.
Bryan, TX Brazos Co. United States	N Main St. / 23rd St. (30.67649, -96.37298)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2018	Crosswalks at yield line.
Bryan, TX Brazos Co. United States	Old College Rd. / College Main St. (30.62699, -96.35515)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 30.4800	Other (At-Grade) Single-Lane	2014	.
College Station, TX Brazos Co. United States	Old Main Dr. / Lamar St. / Jones St. (30.61311, -96.34466)	Other Existing	Other None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	1970	Some yield control, some stop control.
College Station, TX Brazos Co. United States	Arrington Rd. / Private Dr. A / Private Dr. C (30.55915, -96.26419)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2011	Original approaches on Arrington Rd were completed in 2009. The other two legs providing access to the retail developments were added by 2011.
College Station, TX Brazos Co. United States	Scott and White Dr. / Old Rock Prairie Rd. (30.58426, -96.28080)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 64.0070	Other (At-Grade) Single-Lane	2013	On the grounds of the Scott and White Hospital complex, serves the main entrance to the hospital.
College Station, TX Brazos Co. United States	Wellness Ln. / Stonebrook Dr. (30.58436, -96.27781)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2013	On the grounds of the Scott and White Hospital complex, serves a secondary entrance to the hospital.
Bryan, TX Brazos Co. United States	Esther Blvd. / Bennett St. (30.65622, -96.35323)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 15.2400	Other (At-Grade) Single-lane w/ Traversable Central Island	2018	Oval shaped. Year Completed estimated (2017-2019). ICD = 50 ft x 38 ft.
College Station, TX Brazos Co. United States	Veterans Pkwy. / (parking) (30.64496, -96.30071)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
College Station, TX Brazos Co. United States	Veterans Pkwy. / (parking) (30.64114, -96.29447)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
College Station, TX Brazos Co. United States	(unknown) (30.64501, -96.29351)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Bryan, TX Brazos Co. United States	5th St. / Rellis Pkwy. (30.64071, -96.46193)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 60.9600	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Part of the gateway entrance to the Texas A&M University System RELLIS Campus (formerly Riverside Campus) from SH 47. The intersection was added when RELLIS Parkway (the leg to the northwest) was completed in 2018 (approximately). It was built as a bit of a hybrid, in terms of the number of lanes, in that the circulating roadway does not have two lanes all the way around, but it's built so that the second lane can be added for all movements as the need develops.
Bryan, TX Brazos Co. United States	Palasota Dr. / Beck St. (30.66236, -96.38459)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.kbtx.com/2022/02/18/new-roundabout-nearing-completion-bryan/
Bryan, TX Brazos Co. United States	Woodville Rd. / Old Hearne Rd. (30.71372, -96.38899)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.kbtx.com/2020/10/12/new-roundabout-opens-in-bryan/
Rosharon, TX Brazoria Co. United States	Crystal View Dr. / (unknown) (29.43095, -95.45374)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 62.4840	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2020	Two-lane circulatory roadway with single-lane entries on all legs.
Manvel, TX Brazoria Co. United States	Pomona Pkwy. / Kirby Dr. (29.52867, -95.40026)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	East leg shows two through movements even though no receiving leg.
Pearland, TX Brazoria Co. United States	Southlake Blvd. / Shelton Ridge Ln. (29.55184, -95.42967)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5277	Other (At-Grade) Single-Lane	2013	.
Pearland, TX Brazoria Co. United States	Southlake Blvd. / Butler Trails Ln. (29.54774, -95.42966)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5277	Other (At-Grade) Single-Lane	2014	.
Pearland, TX Brazoria Co. United States	Southlake Blvd. / Spicewood Pine Ln. (29.54329, -95.42997)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5277	Other (At-Grade) Single-Lane	2014	.
Pearland, TX Brazoria Co. United States	Pearland Pkwy. / McHard Rd. (29.58271, -95.26942)	Rotary Existing	Uncontrolled None	0 Approaches 0 Driveways 128.0157	Other (At-Grade) Unknown	2004	ICD estimated from Google Maps linework.
Bratsk, Irkutsk Bratsk Russia	ulitsa Mira / ulitsa Podbel'skogo (56.15155, 101.61915)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Bratsk, Irkutsk Bratsk Russia	ulitsa Mira / ulitsa Obrucheva (56.15942, 101.62687)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Devínska Nová Ves, Bratislava Bratislava Slovakia	II/505 / Tomislava P. Kolakoviča (48.20575, 17.01773)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Devínska Nová Ves, Bratislava Bratislava Slovakia	Tomislava P. Kolakoviča / (parking) (48.20726, 17.01979)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Devínska Nová Ves, Bratislava Bratislava Slovakia	(connector to Rte 505) / (parking) (48.21159, 17.01518)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Devínska Nová Ves, Bratislava Bratislava Slovakia	Eisnerova / Vukovarská (48.20591, 16.98689)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Rača, Bratislava Bratislava Slovakia	Námestie Andreja Hlinku [Alstrova / Pri vinohradoch / III/1015 (Detvianska)] (48.21378, 17.15168)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Záhorská Bystrica, Bratislava Bratislava Slovakia	I/2 (Hodonínska) / II/505 (48.20485, 17.04290)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Devínska Nová Ves, Bratislava Bratislava Slovakia	II/505 / (unknown) (48.20414, 17.02765)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Lamač, Bratislava Bratislava Slovakia	II/505 / (unknown) (48.20399, 17.03607)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Vajnory, Bratislava Bratislava Slovakia	Vajnorský nadjazd / III/1082 (Pri starom letisku) (48.19973, 17.19759)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Devínska Nová Ves, Bratislava Bratislava Slovakia	II/505 / (unknown) (48.21104, 17.01360)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Petržalka, Bratislava Bratislava Slovakia	Rte 2 (Dolnozemská cesta / Azúrová) / Panónska cesta / Orechová cesta / Zuzany Chalupovej (48.09255, 17.12167)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Vrakuňa, Bratislava Bratislava Slovakia	Rte 572 (Hradská - Ráztocná) / Dvojkrížna / Hradská (48.14808, 17.20683)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Brant, ON Brant Canada	Rest Acres Rd. / Powerline Rd. (43.16946, -80.38027)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2018-2019).
Braniewo, Warmińsko-mazurskie Braniewski Poland	Rte 54 (Sikorskiego / Fromborska) / Elblaska / Swietojanska / Moniuszki (54.37955, 19.81990)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Starke, FL Bradford Co. United States	NW 83rd Ave. / NW 77th Ave. / NW 228th St. (30.06115, -82.18254)	Other Existing	Uncontrolled Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No control.
Burley in Wharfedale, England Bradford United Kingdom	A65 / A660 (53.91178, -1.73740)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Wibsey, England Bradford United Kingdom	A650 (Wakefield Rd.) / Prospect St. / Bowling Back Ln. / Essex St. (53.78733, -1.74038)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Essex Street is one-way exit.
Shipley, England Bradford United Kingdom	Thackley Old Rd. / Busy Ln. (53.83902, -1.75664)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-lane w/ Traversable Central Island
Wilsden, England Bradford United Kingdom	B6144 (Lane Side - Haworth Rd.) / Main St. / Low Wood (53.81675, -1.85732)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Bradford, England Bradford United Kingdom	B6380 (Beacon Rd. - Fair Rd.) / Saint Enoch's Rd. / Saint Helena Rd. / Wibsey Park Ave. (53.76777, -1.78108)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Bradford, England Bradford United Kingdom	Saint Enoch's Rd. / Watty Hall Rd. / Brownroyd Hill Rd. (53.76991, -1.77947)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-lane w/ Traversable Central Island
Bradford, England Bradford United Kingdom	Jacob's Well [A6181 (Prince's Way - Hall Ings) / A641 (Manchester Rd.)] (53.79089, -1.75430)	Signalized Roundabout/Circle Existing	Signal None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Danville, KY Boyle Co. United States	Shakertown Rd. (KY 33) / KY 2168 (37.67727, -84.76431)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.5372	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2014). ICD estimated from Google Maps linework.
Texarkana, TX Bowie Co. United States	Pavillion Pkwy. / Gibson Ln. / Arista Blvd. (33.45833, -94.09907)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	.
Texarkana, TX Bowie Co. United States	Gibson Ln. / University Ave. (33.45836, -94.11277)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2022	https://www.texarkanagazette.com/news/2022/aug/12/gibson-lane-extension-completed-after-delays/?redirect=/news/2022/aug/12/gibson-lane-extension-completed-after-delays/
Erie, CO Boulder Co. United States	Jasper Rd. / Lombard St. (40.05485, -105.06504)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2021	Year Completed estimated (2020-2021).
Lafayette, CO Boulder Co. United States	Roser Dr. / Crater Lake Ln. / Murphy Creek Dr. (39.99879, -105.13387)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2008-2010).
Louisville, CO Boulder Co. United States	Roser Dr. / W Hecla Dr. / Paschal Dr. (39.99411, -105.13074)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2011
Louisville, CO Boulder Co. United States	E Hecla Dr. / Snowberry Ln. (39.99167, -105.12415)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2008).
Louisville, CO Boulder Co. United States	E Hecla Dr. / Golden Eagle Way / Rose Ct. (39.99337, -105.12375)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2008).
Longmont, CO Boulder Co. United States	Sundance Dr. / Galapagos Pl. (40.20011, -105.06468)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017).
Longmont, CO Boulder Co. United States	Sundance Dr. / Tyrrhenian Dr. (40.20202, -105.06468)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017).
Longmont, CO Boulder Co. United States	Sundance Dr. / Tyrrhenian Cir. (40.19784, -105.06451)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017).
Longmont, CO Boulder Co. United States	Sundance Dr. / Twilight Dr. (40.19529, -105.06175)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2016	Initial construction without splitter islands 1999-2002. Splitter islands added 2016-2017.
Longmont, CO Boulder Co. United States	S Martin St. / Bountiful Ave. (40.14740, -105.08831)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2017
Upper Clover Basin, CO Boulder Co. United States	Clover Basin Dr. / Eagan Way / Eagan Cir. (40.14043, -105.16769)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2014
Lafayette, CO Boulder Co. United States	Casper Dr. / Saratoga Dr. (39.98211, -105.08539)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Lafayette, CO Boulder Co. United States	Cheyenne Dr. / Saratoga Dr. (39.98066, -105.08535)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Lafayette, CO Boulder Co. United States	Casper Dr. / Cody Ct. (39.98213, -105.08776)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Upper Clover Basin, CO Boulder Co. United States	Mountain Dr. / Boundary Pl. (40.14560, -105.17468)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2015).
Lower Clover Basin, CO Boulder Co. United States	Portico Ln. / Portico Pl. (40.13727, -105.17304)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands on two legs.
East Side, CO Boulder Co. United States	E 21st Ave. / Alpine St. (40.19588, -105.08752)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2005).
Erie, CO Boulder Co. United States	Erie Pkwy. / 119th St. (40.03679, -105.07454)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2008	Right-turn-only lane on south leg. Year Completed estimated (2008-2010).
Boulder, CO Boulder Co. United States	Cherryvale Rd. / Oreg St. (40.01320, -105.21292)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.5272	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Superior, CO Boulder Co. United States	McCaslin Blvd. / Coalton Rd. (39.92872, -105.16582)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.1393	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Superior, CO Boulder Co. United States	Rock Creek Pkwy. / 88th St. (39.93764, -105.14780)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 47.6187	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	ICD estimated from Google Maps linework.
Longmont, CO Boulder Co. United States	Deerwood Dr. / Bluefield Ave. (40.17346, -105.06460)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 26.4648	Other (At-Grade) Single-Lane	2002	Functional Class: Local ICD estimated from Google Maps linework.
Longmont, CO Boulder Co. United States	Deerwood Dr. / Windflower Dr. (40.17093, -105.06300)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 25.5532	Other (At-Grade) Single-Lane	2003	Functional Class: Local ICD estimated from Google Maps linework.
Longmont, CO Boulder Co. United States	Deerwood Dr. / Stardance Cir. (40.16962, -105.06120)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 22.8158	Other (At-Grade) Single-Lane	2003	Functional Class: Local ICD estimated from Google Maps linework.
Longmont, CO Boulder Co. United States	Deerwood Dr. / Summer Hawk Dr. (40.17087, -105.05720)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 25.5532	Other (At-Grade) Single-Lane	2003	Functional Class: Local ICD estimated from Google Maps linework.
Boulder, CO Boulder Co. United States	St. Johns St. / New Haven Ct. (Hampton Circle) (40.04742, -105.24740)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 25.5996	Other (At-Grade) Single-Lane	1997	ICD estimated from Google Maps linework.