| 
                City, 
                State County Country  | 
            
                Intersection (Lat, Lng)  | 
            
                Type Status  | 
            Control Type / Other Control Type | Approaches / Driveways / ICD (m) | 
                Functional Class /  LaneType  | 
            Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| 
                Palmer,
                AK Matanuska-Susitna United States  | 
            
                Trunk Rd. / E Blue Lupine Dr. / Georgeson Rd. (61.56617, -149.26180)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.1010  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2010 | ICD estimated from Google Maps linework. | 
| 
                Palmer,
                AK Matanuska-Susitna United States  | 
            
                Trunk Rd. / E Colony Schools Dr. (61.61298, -149.23757)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 50.5354  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2013 | ICD estimated from Google Maps linework. | 
| 
                Wasilla,
                AK Matanuska-Susitna United States  | 
            
                Big Lake Rd. / W North Shore Dr. (61.55232, -149.81920)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 16.4988  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | ICD estimated from Google Maps linework. | 
| 
                Wasilla,
                AK Matanuska-Susitna United States  | 
            
                Trunk Rd. / Parks Hwy SB Ramps / E Fireweed Rd. (61.56204, -149.26719)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 15.9249  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2016 | ICD estimated from Google Maps linework. | 
| 
                Wasilla,
                AK Matanuska-Susitna United States  | 
            
                W Seldon Rd. / N Lucille St. (61.61387, -149.45088)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 37.4746  | 
            
                Other (At-Grade) Single-Lane  |   
            2014 | ICD estimated from Google Maps linework. | 
| 
                Bloomington,
                IL McLean Co. United States  | 
            
                Royal Pointe Dr / Brighton Ln (40.49004, -88.93106)  | 
            
                Traffic Calming Circle Existing  | 
            
                Other None  | 
            
                4 Approaches 0 Driveways 55.4069  | 
            
                Other (At-Grade) Single-Lane  |   
            1997 | Year Completed estimated (1994-1999). ICD estimated from Google Maps linework. | 
| 
                Bloomington,
                IL McLean Co. United States  | 
            
                Royal Pointe Dr. / Arrowhead Dr. (40.49332, -88.93045)  | 
            
                Traffic Calming Circle Removed  | 
            
                Other None  | 
            
                4 Approaches 0 Driveways  | 
            
                Other (At-Grade) Single-Lane  |   
            2014 | Removed sometime between 2012 and 2015. | 
| 
                Nellis AFB,
                NV Clark Co. United States  | 
            
                Ellsworth Ave. / Fitzgerald Blvd. (36.24243, -115.04297)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 29.8608  | 
            
                Other (At-Grade) Single-Lane  |   
            2012 | ICD estimated from Google Maps linework. | 
| 
                Overland Park,
                KS Johnson Co. United States  | 
            
                Switzer Rd. / W 113th St. (38.92484, -94.70984)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 1 Driveways 44.5993  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2015 | ICD estimated from Google Maps linework. | 
| 
                Rochester,
                MN Olmsted Co. United States  | 
            
                50th Ave. NW / Badger Hills Dr. (44.06474, -92.53901)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.9095  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2009 | ICD estimated from Google Maps linework. | 
| 
                Rochester,
                MN Olmsted Co. United States  | 
            
                Badger Hills Dr. / 46th Ave NW (44.06356, -92.53310)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 35.1865  | 
            
                Other (At-Grade) Single-Lane  |   
            2012 | Year Completed estimated (2011-2015). ICD estimated from Google Maps linework. | 
| 
                Rochester,
                MN Olmsted Co. United States  | 
            
                Badger Hills Dr. / Superior Dr. NW (44.06325, -92.52762)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 35.1867  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Year Completed estimated (2011-2015). ICD estimated from Google Maps linework. | 
| 
                Rochester,
                MN Olmsted Co. United States  | 
            
                Badger Hills Dr. / (unknown) (44.06449, -92.53671)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 37.7605  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Year Completed estimated (2011-2015). ICD estimated from Google Maps linework. | 
| 
                Rochester,
                MN Olmsted Co. United States  | 
            
                Valleyhigh Rd. NW / 50th Ave. NW (44.05762, -92.53894)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 40.3398  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2015 | ICD estimated from Google Maps linework. | 
| 
                Redding,
                CA Shasta Co. United States  | 
            
                Madison River Dr. / Clark River Dr. (40.54198, -122.31914)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways  | 
            
                Other (At-Grade) Single-Lane  |   
            2002 | Year Completed estimated (1999-2004). | 
| 
                Williamsburg,
                MI Grand Traverse Co. United States  | 
            
                M-72 / Town Center Dr. (44.77303, -85.48476)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 47.4800  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2015 | ICD estimated from Google Maps linework. | 
| 
                Williamsburg,
                MI Grand Traverse Co. United States  | 
            
                M-72 / Lautner Rd. (44.77274, -85.47563)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 47.4802  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2015 | ICD estimated from Google Maps linework. | 
| 
                Williamsburg,
                MI Grand Traverse Co. United States  | 
            
                Lautner Rd. / Town Center Dr. (44.76912, -85.47565)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 25.4374  | 
            
                Other (At-Grade) Single-Lane  |   
            2015 | ICD estimated from Google Maps linework. | 
| 
                Gorham,
                ME Cumberland Co. United States  | 
            
                New Portland Rd. / Libby Ave. / Brackett Rd. (43.67815, -70.41358)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 35.4148  | 
            
                Other (At-Grade) Single-Lane  |   
            2011 | ICD estimated from Google Maps linework. | 
| 
                Augusta,
                ME Kennebec Co. United States  | 
            
                Rte 3 / I-95 NB Ramps (44.35353, -69.78083)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 46.1156  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2013 | ICD estimated from Google Maps linework. | 
| 
                Bangor,
                ME Penobscot Co. United States  | 
            
                Godfrey Blvd. / Maine Ave. (44.81370, -68.81322)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.9047  | 
            
                Other (At-Grade) Single-Lane  |   
            2012 | ICD estimated from Google Maps linework. | 
| 
                Howland,
                ME Penobscot Co. United States  | 
            
                Coffin St. / Lagrange Rd. / River Rd. (45.23886, -68.66019)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 105.1237  | 
            
                Other (At-Grade) Single-Lane  |   
            2012 | Combined two one-way stop-controlled T-intersections and a new bridge alignment into a single-lane roundabout. ICD estimated from Google Maps linework. | 
| 
                Windham,
                ME Cumberland Co. United States  | 
            
                River Rd. / Windham Center Rd. (43.79915, -70.44025)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 18.9647  | 
            
                Other (At-Grade) Single-Lane  |   
            2015 | ICD estimated from Google Maps linework. | 
| 
                Hilliard,
                OH Franklin Co. United States  | 
            
                Britton Pkwy. / All Seasons Dr. / Lyman Ct. (40.03655, -83.13115)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 54.8640  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2013 | ICD = 180 ft in two-lane section, 160 feet in one-lane section. | 
| 
                Bath,
                ME Sagadahoc Co. United States  | 
            
                State Rd. / Congress Ave. (43.90587, -69.83261)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 31.8381  | 
            
                Other (At-Grade) Single-Lane  |   
            2011 | ICD estimated from Google Maps linework. | 
| 
                New Albany,
                OH Franklin Co. United States  | 
            
                US 62 (Johnstown Rd.-W Main St.) / Market St. (40.07993, -82.81385)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 32.8981  | 
            
                Other (At-Grade) Single-Lane  |   
            2014 | ICD estimated from Google Maps linework. | 
| 
                New Albany,
                OH Franklin Co. United States  | 
            
                Reynoldsburg-New Albany Rd. / Morse Rd. (40.05310, -82.81014)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 41.1389  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2010 | High-speed rural approaches. ICD estimated from Google Maps linework. | 
| 
                Columbus,
                OH Franklin Co. United States  | 
            
                US 62 (Johnstown Rd.) / Morse Rd. (40.05465, -82.84182)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 53.0222  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2008 | Skewed alignment realigned. High-speed rural approaches. Year Completed estimated (2007-2009). ICD estimated from Google Maps linework. | 
| 
                Windham,
                ME Cumberland Co. United States  | 
            
                US 202 / US 302 (43.80299, -70.40595)  | 
            
                Rotary Existing  | 
            
                Unknown None  | 
            
                4 Approaches 0 Driveways 84.4736  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Columbus,
                OH Franklin Co. United States  | 
            
                N Hamilton Rd / Parc Dr. (40.03180, -82.86552)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.1960  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2016 | |
| 
                Blue Hill,
                ME Hancock Co. United States  | 
            
                Beech Hill Rd. / Mines Rd. / Tenney Hill / South St. (44.40825, -68.59763)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 32.4214  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                OH Franklin Co. United States  | 
            
                 Harlem Rd. / Smothers Rd. (40.12927, -82.84332)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 42.6720  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Year Completed estimated (2011-2014). | 
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                Bale Kenyon Rd. / E Orange Rd. (40.17266, -82.96241)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 34.6785  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2011 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                E Orange Rd. / Walker Wood Blvd. / Abbey Knoll Dr. (40.17312, -82.97326)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 27.3775  | 
            
                Other (At-Grade) Single-Lane  |   
            2011 | Right-turn-only lane on south leg. ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                E Orange Rd. / Roespark Blvd. / (school entrance) (40.17355, -82.98272)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2011 | |
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                Olentangy River Rd. / W Orange Rd. / Carriage Rd. (40.17575, -83.04679)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Year Completed estimated (2011-2014). | 
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                Riverside Dr. / Home Rd. (40.19746, -83.13604)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 49.2619  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2014 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                Home Rd. / S Section Line Rd. (40.19766, -83.13407)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 50.1740  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2014 | ICD estimated from Google Maps linework. | 
| 
                Columbus,
                OH Franklin Co. United States  | 
            
                Groveport Rd. / Old Rathmell Ct. / Alum Creek Dr. access (39.86733, -82.93329)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.9175  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2013 | Part of intersection complex with grade separation. Right-turn bypass lane on south leg. Year Completed estimated (2012-2014). ICD estimated from Google Maps linework. | 
| 
                Columbus,
                OH Franklin Co. United States  | 
            
                Groveport Rd. / Alum Creek Rd. access / (parking lot) (39.86872, -82.93737)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 37.5833  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Right-turn bypass lane on west leg. Year Completed estimated (2012-2014). ICD estimated from Google Maps linework. | 
| 
                Dublin,
                OH Franklin Co. United States  | 
            
                Emerald Pkwy. / Lakehurst Ct. (40.07730, -83.14146)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.7797  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2012 | Year Completed estimated (2011-2014). ICD estimated from Google Maps linework. | 
| 
                Dublin,
                OH Franklin Co. United States  | 
            
                Emerald Pkwy. / Glendon Ct. (40.08085, -83.14136)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 43.8636  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2012 | Year Completed estimated (2011-2014). ICD estimated from Google Maps linework. | 
| 
                Dublin,
                OH Franklin Co. United States  | 
            
                Perimeter Dr. / Commerce Pkwy. (40.10266, -83.14083)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 41.1089  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2011 | ICD estimated from Google Maps linework. | 
| 
                Dublin,
                OH Franklin Co. United States  | 
            
                Brand Rd. / Coffman Rd. (40.11862, -83.13164)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 34.7061  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Year Completed estimated (2011-2014). Right-turn bypass lane on west leg. ICD estimated from Google Maps linework. | 
| 
                Dublin,
                OH Franklin Co. United States  | 
            
                Emerald Pkwy. / Sawbury Blvd. (40.11414, -83.09613)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 34.7083  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2015 | ICD estimated from Google Maps linework. | 
| 
                Plain City,
                OH Union Co. United States  | 
            
                SR 161 (Post Rd) / Old US Hwy 33 (40.11015, -83.18304)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 57.5462  | 
            
                Other (At-Grade) Multilane (3+ Lane)  |   
            2015 | ICD estimated from Google Maps linework. | 
| 
                Dublin,
                OH Franklin Co. United States  | 
            
                Cosgray Rd. / Shier Rings Rd. (40.09346, -83.18686)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.9418  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Right-turn-only lane on west leg. Year Completed estimated (2011-2014). ICD estimated from Google Maps linework. | 
| 
                Dublin,
                OH Franklin Co. United States  | 
            
                SR 161 (W Dublin Granville Rd.-E Bridge St.) / Riverside Dr. (US 33-SR 257) (40.09964, -83.10936)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 70.1040  | 
            
                Other (At-Grade) Multilane (3+ Lane)  |   
            2016 | Modified 2018 to reduce lane configuration. https://www.thisweeknews.com/news/20191022/dublin-officials-say-161-riverside-roundabout-fixes-lessen-crashes . 21442 | 
| 
                Dublin,
                OH Franklin Co. United States  | 
            
                Village Pkwy. / Shamrock Blvd. (40.10226, -83.09686)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 33.8009  | 
            
                Other (At-Grade) Single-Lane  |   
            2008 | Year Completed estimated (2007-2009). ICD estimated from Google Maps linework. | 
| 
                Henderson,
                CO Adams Co. United States  | 
            
                E 96th Ave. / I-76 WB Ramps / Brighton Rd. / I-76 Service Rd. (39.87079, -104.90301)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                5 Approaches 0 Driveways 65.0813  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2009 | Year Completed estimated (2008-2010). ICD estimated from Google Maps linework. | 
| 
                Centennial,
                CO Arapahoe Co. United States  | 
            
                S Peoria St. / E Peakview Ave. (39.59674, -104.84809)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 36.8116  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2013 | ICD estimated from Google Maps linework. | 
| 
                Glen Ellyn,
                IL DuPage Co. United States  | 
            
                Crescent Blvd. / Crescent Ct. / Park Row (41.87975, -88.05899)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 24.9936  | 
            
                Other (At-Grade) Single-Lane  |   
            2015 | Compact urban roundabout - T-intersection with fourth leg between top and stem of T. Providing a means for legal U-turns was an important factor in selection of a roundabout here. | 
| 
                McKinleyville,
                CA Humboldt Co. United States  | 
            
                School Rd. / Salmon Ave. / McKinleyville Ave. (40.93439, -124.11240)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 27.0680  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Year Completed estimated (2012-2014). ICD estimated from Google Maps linework. | 
| 
                San Luis Obispo,
                CA San Luis Obispo Co. United States  | 
            
                Chorro St. / High St. (35.27217, -120.65736)  | 
            
                Traffic Calming Circle Existing  | 
            
                One-Way/Two-Way Stop None  | 
            
                4 Approaches 0 Driveways 10.7258  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | ICD estimated from Google Maps linework. | 
| 
                San Luis Obispo,
                CA San Luis Obispo Co. United States  | 
            
                Chorro St. / Church St. (35.27448, -120.65800)  | 
            
                Traffic Calming Circle Existing  | 
            
                One-Way/Two-Way Stop None  | 
            
                4 Approaches 0 Driveways 29.2513  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | ICD estimated from Google Maps linework. | 
| 
                San Luis Obispo,
                CA San Luis Obispo Co. United States  | 
            
                Madonna Rd. / Devaul Ranch Dr. (35.25454, -120.69548)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 1 Driveways 21.4562  | 
            
                Other (At-Grade) Single-Lane  |   
            2001 | Year Completed estimated (1994-2002). ICD estimated from Google Maps linework. | 
| 
                San Luis Obispo,
                CA San Luis Obispo Co. United States  | 
            
                Prado Rd. / Serra Meadows Dr. (35.25402, -120.66256)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 50.2920  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2015 | |
| 
                San Luis Obispo,
                CA San Luis Obispo Co. United States  | 
            
                Margarita Ave. / Cherry Ln. (35.25603, -120.66104)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2014 | |
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                Cheshire Rd. / TR 35 (40.23802, -82.93950)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 39.6240  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Rural, high-speed approaches. Year Completed estimated (2011-2014). | 
| 
                Vancouver,
                WA Clark Co. United States  | 
            
                NE 44th St. / NE 137th Ave. (45.65377, -122.53207)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.8796  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                Sawmill Pkwy. / Clark Shaw Rd (40.22808, -83.09516)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 41.9449  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2016 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                Sawmill Pkwy. / Bean Oller Rd. (40.23539, -83.09539)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 47.4108  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2016 | ICD estimated from Google Maps linework. | 
| 
                Vancouver,
                WA Clark Co. United States  | 
            
                NE 39th St. / NE 137th Ave. / NE 138th Ave. (45.65025, -122.53209)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.4044  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2013 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                Sawmill Pkwy. / Ford Rd. (40.24463, -83.09368)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.8463  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2016 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                Sawmill Pkwy. / Bunty Station Rd. (40.25373, -83.09134)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 47.3980  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2016 | ICD estimated from Google Maps linework. | 
| 
                Vancouver,
                WA Clark Co. United States  | 
            
                NE 32nd Cir. / NE 138th Ave. (45.64517, -122.53057)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 40.0778  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | ICD estimated from Google Maps linework. | 
| 
                Wooster,
                OH Wayne Co. United States  | 
            
                SR 83 (Burbank Rd.) / W Smithville Western Rd. (40.85801, -81.95140)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | Completed August 2016. | 
| 
                Dublin,
                OH Union Co. United States  | 
            
                Hyland Croy Rd. / Mitchell Dewitt Rd. (40.13341, -83.17931)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 43.8297  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Right-turn-only lanes on north and south legs. Year Completed estimated (2011-2014). ICD estimated from Google Maps linework. | 
| 
                Vancouver,
                WA Clark Co. United States  | 
            
                NE 18th St. / I-205 SB On Ramp (45.63554, -122.56193)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                2 Approaches 0 Driveways 33.4039  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2016 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                OH Delaware Co. United States  | 
            
                Home Rd. / Concord Rd. (40.19585, -83.16441)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 34.6666  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Year Completed estimated (2011-2014). ICD estimated from Google Maps linework. | 
| 
                Ridgefield,
                WA Clark Co. United States  | 
            
                NW 319th St. / I-5 SB Ramps (45.85163, -122.70380)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 48.7680  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2017 | Part of Ilani Casino interchange project. | 
| 
                Ridgefield,
                WA Clark Co. United States  | 
            
                NW La Center Rd. / I-5 NB Ramps (45.85214, -122.70160)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 51.8160  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2017 | Part of Ilani Casino interchange project. | 
| 
                Camas,
                WA Clark Co. United States  | 
            
                NW 6th Ave. / SR 14 WB Ramps / NW Norwood St. (45.58216, -122.42684)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.1960  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2016 | |
| 
                Southlake,
                TX Tarrant Co. United States  | 
            
                Bicentennial Dr. / Unity Way (32.94346, -97.15686)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 30.4800  | 
            
                Unknown Single-Lane  |   
            2010 | . | 
| 
                Larkspur,
                CO Douglas Co. United States  | 
            
                Bear Dance Dr. / Sky View Ln. / Elk View Rd. / Lake Dr. (39.27054, -104.90711)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 31.4367  | 
            
                Other (At-Grade) Single-Lane  |   
            2003 | Year Completed estimated (2002-2004). ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                CO Douglas Co. United States  | 
            
                Meridian Village Pkwy. / Bristleridge Dr.  (39.53102, -104.82616)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 43.2946  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                CO Douglas Co. United States  | 
            
                Meridian Village Pkwy. / Ashgrove Dr. (39.52786, -104.82450)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.3754  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                CO Douglas Co. United States  | 
            
                Meridian Village Pkwy. / Rutledge Ln. (39.52471, -104.82329)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 41.4561  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                CO Douglas Co. United States  | 
            
                W Happy Canyon Rd. / Castle Pines Dr. (39.42838, -104.90106)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.8306  | 
            
                Other (At-Grade) Single-Lane  |   
            2011 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                CO Douglas Co. United States  | 
            
                Happy Canyon Rd. / Castle Pines Dr. S (39.43975, -104.88723)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 34.1278  | 
            
                Other (At-Grade) Single-Lane  |   
            2011 | ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                CO Douglas Co. United States  | 
            
                Fox Sparrow Rd. / Windhaven Dr. (39.43781, -104.73199)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 26.7495  | 
            
                Other (At-Grade) Single-Lane  |   
            1998 | Year Completed estimated (1993-1999). ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                CO Douglas Co. United States  | 
            
                Blackgum St. / Golden Eye Ave. (39.56456, -104.80327)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 31.3044  | 
            
                Other (At-Grade) Single-Lane  |   
            2001 | No splitter islands. Year Completed estimated (1999-2002). ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                CO Douglas Co. United States  | 
            
                Lioness Way / Lioness Pl. (39.53520, -104.84861)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 40.5287  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | ICD estimated from Google Maps linework. | 
| 
                Dothan,
                AL Houston Co. United States  | 
            
                Recreation Rd. / Northcutt Dr. (31.24127, -85.44014)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 22.4651  | 
            
                Other (At-Grade) Single-Lane  |   
            2007 | ICD estimated from Google Maps linework. | 
| 
                Dothan,
                AL Houston Co. United States  | 
            
                Northcutt Dr. / Deerpath Rd. (31.23965, -85.44308)  | 
            
                Other Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 26.5501  | 
            
                Other (At-Grade) Single-Lane  |   
            2007 | ICD estimated from Google Maps linework. | 
| 
                Littleton,
                CO Jefferson Co. United States  | 
            
                S Union Ct. / S Ida Ave. (39.61175, -105.13316)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 34.0433  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | ICD estimated from Google Maps linework. | 
| 
                Littleton,
                CO Jefferson Co. United States  | 
            
                S Zang St. / Robert Easton Park (39.60735, -105.14731)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 27.6044  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | 3rd leg added around 2012, Built for future 4th Leg. ICD estimated from Google Maps linework. | 
| 
                Birmingham,
                AL Jefferson Co. United States  | 
            
                Liberty Pkwy. / Lake Pkwy. (33.47937, -86.67624)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 27.8928  | 
            
                Other (At-Grade) Single-Lane  |   
            2000 | Year Completed estimated (1998-2002). ICD estimated from Google Maps linework. | 
| 
                Windermere,
                FL Orange Co. United States  | 
            
                Main St. / 5th Ave. (28.49567, -81.53498)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 32.0040  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | |
| 
                Windermere,
                FL Orange Co. United States  | 
            
                Main St. / 6th Ave. (28.49445, -81.53457)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 34.1376  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | Previous control type estimated. | 
| 
                Windermere,
                FL Orange Co. United States  | 
            
                McGuire Rd. / Park Ave. (28.50789, -81.54275)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 31.6992  | 
            
                Other (At-Grade) Single-Lane  |   
            2011 | |
| 
                Orlando,
                FL Orange Co. United States  | 
            
                Reams Rd. / Silverlake Park Dr. (28.44357, -81.56126)  | 
            
                Roundabout Existing  | 
            
                Unknown None  | 
            
                4 Approaches 0 Driveways 52.5079  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2011 | Circulatory roadway striping has evolved from initially concentric to now spiral. ICD estimated from Google Maps linework. | 
| 
                Orlando,
                FL Orange Co. United States  | 
            
                Lake Village Rd. / Lakeside Village Rd. (28.44895, -81.56354)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 32.5532  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2011 | ICD estimated from Google Maps linework. | 
| 
                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. | 
| 
                Vacaville,
                CA Solano Co. United States  | 
            
                Vanden Rd. / Leisure Town Rd. (38.31717, -121.94312)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Single-Lane  |   
            2017 | Added lane right-turn bypass lanes on west and south legs. | 
| 
                Monterey,
                CA Monterey Co. United States  | 
            
                SR 68 / SR 1 SB Off-Ramp / 17 Mile Dr. (36.57529, -121.91281)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.6720  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2017 | |
| 
                Monterey,
                CA Monterey Co. United States  | 
            
                17 Mile Dr. / SR 1 SB On-Ramp (36.57448, -121.91295)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                2 Approaches 0 Driveways 28.9560  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2017 | Raindrop shape. Right-turn-only lane on west leg. | 
| 
                Loomis,
                CA Placer Co. United States  | 
            
                Rutherford Canyon Rd. / Montserrat Ln. (38.78979, -121.18570)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 34.4440  | 
            
                Other (At-Grade) Single-Lane  |   
            2007 | ICD estimated from Google Maps linework. | 
| 
                Loomis,
                CA Placer Co. United States  | 
            
                Montserrat Ln. / Blackhawk Ct. (38.78614, -121.18684)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways  | 
            
                Other (At-Grade) Single-Lane  |   
            2007 | |
| 
                Rocklin,
                CA Placer Co. United States  | 
            
                Rocklin Rd. / Meyers St. (38.78852, -121.22915)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.1684  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2014 | ICD estimated from Google Maps linework. |