| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Hilliard,
                OH Franklin Co. United States | Main St. / Cemetery Rd. (40.02993, -83.16123) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.7680 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2010 | Circulatory roadway striping modified 2014-2015. Roundabout modifications to signs & striping occurred in 2019. Raised crosswalks were also installed as part of the project. | 
| Hilliard,
                OH Franklin Co. United States | Main St. / Scioto Darby Rd. (40.02892, -83.16108) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8637 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2010 | Modified 2011-2014 to change lane configuration. Central island was re-shaped using qwik-curb in 2019; permanent modifications to central island & splitter islands (including addition of raised crosswalks) were completed in July 2021. 21442 | 
| Dublin,
                OH Franklin Co. United States | Avery-Muirfield Dr. / Post Rd. (40.10686, -83.16028) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.9333 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | ICD estimated from Google Maps linework. | 
| Dublin,
                OH Franklin Co. United States | Brand Rd. / Avery Rd. (40.12997, -83.15916) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.8739 | Other (At-Grade) Single-Lane | 2017 | https://dublinohiousa.gov/newsroom/averybrand-roundabout-traffic-pattern-change ICD estimated from Google Maps linework. | 
| Dublin,
                OH Franklin Co. United States | Avery Rd. / Tuswell Dr. / Innovation Dr. (40.09153, -83.15848) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.6841 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | ICD estimated from Google Maps linework. | 
| Grove City,
                OH Franklin Co. United States | Norton Rd. / Kropp Rd. / Grove City Rd. (39.87469, -83.15744) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2023 | |
| (unincorporated),
                OH Delaware Co. United States | Harriot Dr. / Concord Rd. (40.16689, -83.15468) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 44.7208 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Dublin,
                OH Franklin Co. United States | Rings Rd. / Norn St. (40.08079, -83.15467) | Other Existing | All-Way Stop None | 3 Approaches 0 Driveways 37.4668 | Other (At-Grade) Single-Lane | Stop control on all approaches. No splitter islands. ICD estimated from Google Maps linework. | |
| Pleasant Township,
                OH Franklin Co. United States | Norton Rd. / Johnson Rd. (39.89132, -83.15463) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2019 | https://www.nbc4i.com/news/local-news/1-8-million-roundabout-added-to-dangerous-intersection/ | 
| Rochester Hills,
                MI Oakland Co. United States | W Tienken Rd. / N Livernois Rd. (42.69527, -83.15397) | Roundabout Existing | All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK) | 4 Approaches 0 Driveways 46.5232 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | ICD estimated from Google Maps linework. | 
| Rochester Hills,
                MI Oakland Co. United States | W Hamlin Rd. / S Livernois Rd. (42.65198, -83.15281) | Roundabout Existing | All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK) | 4 Approaches 0 Driveways 33.3795 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | ICD estimated from Google Maps linework. | 
| Dublin,
                OH Franklin Co. United States | Muirfield Dr. / Brand Rd. (40.12731, -83.14957) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 73.1520 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2005 | Painted spirals next to central island. | 
| Dublin,
                OH Franklin Co. United States | Rings Rd. / Wilcox Rd. (40.08106, -83.14941) | Other Existing | All-Way Stop None | 4 Approaches 0 Driveways 21.9317 | Other (At-Grade) Single-Lane | Stop control on all approaches. No splitter islands. ICD estimated from Google Maps linework. | |
| Hilliard,
                OH Franklin Co. United States | Wilcox Rd. / Riggins Rd. (40.06279, -83.14831) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2017 | 2x1 roundabout. ICD = 160 ft in one-lane section, 180 feet in two-lane section. | 
| Dublin,
                OH Franklin Co. United States | Rings Rd. / Brighton Hill Ln. (40.08177, -83.14392) | Other Existing | All-Way Stop Unknown | 3 Approaches 0 Driveways 34.7249 | Other (At-Grade) Single-Lane | 2004 | Stop control on approaches. Year Completed estimated (2003-2004). 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. | 
| Hilliard,
                OH Franklin Co. United States | Scioto Darby Rd. / Walcutt Rd. (40.01965, -83.14034) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 42.6717 | Other (At-Grade) Single-Lane | 2021 | Roundabout built immediately north of signalized intersection. Signal removed & roundabout opened in August 2021. | 
| Hilliard,
                OH Franklin Co. United States | Leap Rd. / Anson Dr. (40.04170, -83.13882) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.2440 | Other (At-Grade) Single-Lane | 2009 | Right-turn-only lane on south leg. | 
| Hilliard,
                OH Franklin Co. United States | Britton Pkwy. / Riggins Rd. (40.06493, -83.13857) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8637 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2006 | Converted from 2x2 roundabout to a 2x1 roundabout in 2020 by changing the EB and WB thru/right lanes to RT only lanes. | 
| Hilliard,
                OH Franklin Co. United States | Britton Pkwy. / Hayden Run Rd. (40.06202, -83.13750) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | ICD = 160 feet in one-lane section, 180 in two-lane section. | 
| (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. | 
| Hillard,
                OH Franklin Co. United States | Britton Pkwy. / Davidson Rd. (40.04977, -83.13399) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Modified striping to remove fishhooks in 2019. | 
| 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. | 
| Hilliard,
                OH Franklin Co. United States | Britton Pkwy. / Anson Dr. (40.04156, -83.13125) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Modified striping to eliminate fishhooks & convert to 2x1 in 2020 (converted EB from Thru/RT to RT only). | 
| 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. | 
| Rochester Hills,
                MI Oakland Co. United States | Tienken Rd. / Sheldon Rd. (42.69626, -83.12320) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.6224 | Other (At-Grade) Single-Lane | 2001 | Near Hart Middle School and Stoney Creek High School. Functional Class: Local ICD estimated from Google Maps linework. | 
| Prairie Township,
                OH Franklin Co. United States | S Grener Ave. / Old Grener Ave. (39.95164, -83.12259) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.2134 | Other (At-Grade) Single-Lane | 2011 | Year Completed estimated (2011-2012). ICD estimated from Google Maps linework. | 
| Rochester Hills,
                MI Oakland Co. United States | Ryder Dr. / Everett Dr. (42.63069, -83.11884) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 22.8464 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Dublin,
                OH Franklin Co. United States | Dubln Rd. / Brand Rd. (40.11790, -83.11801) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.6720 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2005 | |
| Rochester Hills,
                MI Oakland Co. United States | Ryder Dr. / Connors Dr. (42.63060, -83.11736) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 21.9677 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Rochester,
                MI Oakland Co. United States | Tienken Rd. / Runyon Rd. / Washington Rd. (42.69743, -83.11135) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.0105 | Other (At-Grade) Single-Lane | 1999 | Total cost: $353,000. Completed July 1999. Functional Class: Arterial 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 | 
| (unincorporated),
                OH Delaware Co. United States | Hyatts Rd. / Steitz Rd. (40.21703, -83.10868) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2020 | https://engineer.co.delaware.oh.us/image_slider/hyatts-steitz-roundabout/ | 
| (unincorporated),
                OH Franklin Co. United States | Demorest Rd. / Alkire Rd. (39.91363, -83.10800) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 37.5587 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| (unincorporated),
                OH Delaware Co. United States | Eagles Landing Dr. / Liberty Grand Blvd. (40.20685, -83.10250) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2020 | Year Completed estimated (2019-2021). | 
| Rochester Hills,
                MI Oakland Co. United States | E Auburn Rd. / Harrison Ave. (42.63763, -83.09821) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4317 | Other (At-Grade) Single-Lane | 2019 | Pair of roundabouts installed as part of a streetscape renovation. | 
| 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. | 
| Rochester,
                MI Oakland Co. United States | E Avon Rd. / Dequindre Rd. (42.67168, -83.09685) | Roundabout Unknown | All-Way Yield None | 3 Approaches 1 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | Bridge to the east and roundabout at Avon and Dequindre is under construction November 2021. http://www.rcocweb.org/606/Avon-Road-Dequindre-to-23-Mile-Road The one driveway is a utility drive. Note: Popular Cider mill is to the east as well with another roundabout planed for 2022 at Dequindre and 23 Mile Rd. | 
| (unincorporated),
                OH Delaware Co. United States | Sawmill Pkwy. / Hyatts Rd. (40.21642, -83.09669) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.8641 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Dublin,
                OH Franklin Co. United States | Wyandotte Woods Blvd. / Kelly Dr. (40.12655, -83.09648) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 28.9560 | Other (At-Grade) Single-Lane | 2013 | Year Completed estimated (2011-2014). | 
| 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. | 
| Rochester Hills,
                MI Oakland Co. United States | E Auburn Rd. / Gerald Ave. (42.63809, -83.09578) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4320 | Other (At-Grade) Single-Lane | 2019 | Pair of roundabouts installed as part of a streetscape renovation. | 
| (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. | 
| (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. | 
| Grove City,
                OH Franklin Co. United States | Columbus St. / Beulah Way (39.88747, -83.09512) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2020 | Year Completed estimated (2019-2020). | 
| Shelby Township,
                MI Macomb Co. United States | E Avon Rd. / 23 Mile Rd. (42.67368, -83.09389) | Roundabout Unknown | All-Way Yield Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | Roundabout constructed after completion of bridge and roundabout to the west is completed. | 
| (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. | 
| Grove City,
                OH Franklin Co. United States | Orders Rd. / Haughn Rd. (39.85994, -83.09062) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.1706 | Other (At-Grade) Single-Lane | 2015 | ICD estimated from Google Maps linework. | 
| Powell,
                OH Delaware Co. United States | Sawmill Rd. / Presidential Pkwy. (40.14895, -83.08899) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2023 | https://engineer.co.delaware.oh.us/image_slider/presidential-parkway-and-sawmill-road-intersection-2023/ | 
| Windsor,
                ON Essex Canada | Sandwich St. / Rosedale Ave. / University Ave. W / Riverside Dr. W (42.30681, -83.07309) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 22.0817 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| (unincorporated),
                OH Delaware Co. United States | Liberty Road at Jewett Road (40.14435, -83.07301) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 27.3892 | Other (At-Grade) Single-Lane | 2018 | ICD estimated from Google Maps linework. | 
| Powell,
                OH Delaware Co. United States | S Liberty St. / Salisbury Dr. (40.14137, -83.07254) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2021 | https://engineer.co.delaware.oh.us/photogallery/ | 
| Windsor,
                ON Essex Canada | Mill St. / Felix Ave. / Ryan St. (42.30012, -83.07024) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.2675 | Other (At-Grade) Single-Lane | 2011 | Year Completed estimated (2010-2012). ICD estimated from Google Maps linework. | 
| Upper Arlington,
                OH Franklin Co. United States | Redding Rd. / Tremont Rd. / Abington Rd. (40.01060, -83.06978) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.9544 | Other (At-Grade) Single-Lane | 2016 | Year Completed estimated (2015-2016). ICD estimated from Google Maps linework. | 
| Delaware,
                OH Delaware Co. United States | Hawthorn Blvd. / Stratford Dr. (40.26344, -83.06658) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2018 | |
| Upper Arlington,
                OH Franklin Co. United States | Arlington Ave. / Stanford Rd. / Tremont Rd. (39.99510, -83.06056) | Roundabout Existing | All-Way Yield None | 6 Approaches 0 Driveways 34.7690 | Other (At-Grade) Single-Lane | 2004 | Splitter islands only on north and south legs. ICD estimated from Google Maps linework. | 
| Windsor,
                ON Essex Canada | Rte 3 (Malden Rd.) / Rte 6 (Todd Ln.) (42.25147, -83.06051) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 39.7819 | Other (At-Grade) Single-Lane | 2011 | Year Completed estimated (2010-2015). ICD estimated from Google Maps linework. | 
| Grove City,
                OH Franklin Co. United States | Gantz Rd. / Brookham Dr. (39.88597, -83.05650) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.4067 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Delaware,
                OH Delaware Co. United States | Braumiller Rd. / (unknown) (40.25716, -83.05483) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2021 | |
| Grove City,
                OH Franklin Co. United States | Buckeye Pkwy. / Pinnacle Club Dr. (39.86381, -83.05253) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 44.0031 | Other (At-Grade) Single-Lane | 2005 | ICD estimated from Google Maps linework. | 
| Grove City,
                OH Franklin Co. United States | Borror Rd. / Buckeye Pkwy. (39.84336, -83.05249) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2020 | Right-turn-only lane on north leg. | 
| Marion,
                OH Marion Co. United States | SR 98 (Columbus-Sandusky Rd. S) / SR 529 (Marion-Cardington Rd. E) (40.54939, -83.05017) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2023 | Year Completed estimated (2021-2024). | 
| Windsor,
                ON Essex Canada | Laurier Pkwy. / Mike Raymond Dr. (42.22251, -83.04987) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.9514 | Other (At-Grade) Single-Lane | 2011 | Fourth approach stubbed. Year Completed estimated (2009-2012). ICD estimated from Google Maps linework. | 
| Upper Arlington,
                OH Franklin Co. United States | North Star Rd. / Kinnear Rd. / Waltham Rd. (39.99886, -83.04812) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.1074 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| (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). | 
| Northwest Warren,
                MI Macomb Co. United States | William Durant Blvd. / Charles Chayne Rd. (42.50727, -83.04056) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 62.4840 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | Inside General Motors plant. | 
| Washington,
                MI Macomb Co. United States | Van Dyke Ave. / Campground Rd. (42.73402, -83.03617) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | https://www.youtube.com/watch?v=tFHwV5OfDwc | 
| Delaware,
                OH Delaware Co. United States | Mill Run Crossing / Rosemary Run / (shopping center) (40.29062, -83.03614) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.7071 | Other (At-Grade) Single-Lane | 2008 | Year Completed estimated (2006-2009). ICD estimated from Google Maps linework. | 
| Delaware,
                OH Delaware Co. United States | Glenn Pkwy. / OhioHealth Blvd. (40.23450, -83.03527) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 61.9996 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Year Completed estimated (2006-2009). ICD estimated from Google Maps linework. | 
| Delaware,
                OH Delaware Co. United States | Glenn Pkwy. / Cheshire Rd. (40.24134, -83.03521) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 60.1700 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Year Completed estimated (2006-2009). ICD estimated from Google Maps linework. | 
| Delaware,
                OH Delaware Co. United States | Glenn Pkwy. / Sycamore Ln. (40.24832, -83.03429) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 61.9870 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Year Completed estimated (2006-2009). ICD estimated from Google Maps linework. | 
| Delaware,
                OH Delaware Co. United States | Berlin Station Rd. / Glenn Pkwy. (40.25801, -83.03239) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2021 | Year Completed estimated (2019-2021). | 
| Sterling Heights,
                MI Macomb Co. United States | Van Dyke Ave. (M-53) / 18 1/2 Mile Rd. (42.60148, -83.03119) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 76.2000 | Freeway Ramps (Grade-Separated) Multilane (3+ Lane) | 2005 | Completed June 2005. | 
| Northwest Warren,
                MI Macomb Co. United States | Edward Cole Blvd. / Louis Chevrolet Rd. (42.51705, -83.03027) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 62.4840 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2004 | Inside General Motors plant. Year Completed estimated (2003-2005). | 
| Utica,
                MI Macomb Co. United States | 26 Mile Rd. / M-53 SB Ramps (42.71388, -83.02834) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 44.7542 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Delaware,
                OH Delaware Co. United States | SR 521 / Byxbe Pkwy. (40.30186, -83.02598) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2022 | https://engineer.co.delaware.oh.us/image_slider/byxbe-campus-project-2022/ | 
| Utica,
                MI Macomb Co. United States | 26 Mile Rd. / M-53 NB Ramps (42.71396, -83.02374) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 42.9991 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | Replaced back-to-back loop ramps on northbound M-53. ICD estimated from Google Maps linework. | 
| (unincorporated),
                OH Delaware Co. United States | Peachblow Rd. / North Rd. (40.22705, -83.02061) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2021 | https://www.delgazette.com/news/91185/new-roundabout-nears-completion | 
| Windsor,
                ON Essex Canada | Parent Ave. / Erie St. E (42.31363, -83.02060) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 18.5466 | Other (At-Grade) Single-Lane | 2011 | http://www.calgaryherald.com/media+conference+held+Monday+2011+explain+proper+roundabout+intersection+Erie+Street+Parent+Avenue+Windsor+This+view+roundabout+from+Parent+looking+south/5635192/story.html ICD estimated from Google Maps linework. | 
| Delaware,
                OH Delaware Co. United States | Cheshire Rd. / Eagle Walk Rd. / Winterbourne Dr. (40.24068, -83.01868) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.7320 | Other (At-Grade) Single-Lane | 2017 | Year Completed estimated (2016-2018). ICD estimated from Google Maps linework. | 
| University District,
                OH Franklin Co. United States | W 6th Ave. / Michigan Ave. (39.98857, -83.01657) | Other Existing | Uncontrolled Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| University District,
                OH Franklin Co. United States | W 7th Ave. / Michigan Ave. (39.98958, -83.01652) | Other Existing | Uncontrolled None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| University District,
                OH Franklin Co. United States | W 6th Ave. / Pennsylvania Ave. (39.98850, -83.01519) | Other Existing | Uncontrolled Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| University District,
                OH Franklin Co. United States | W 7th Ave. / Pennsylvania Ave. (39.98953, -83.01514) | Other Existing | Uncontrolled Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| (unincorporated),
                OH Delaware Co. United States | Lewis Center Rd. / North Rd. (40.19973, -83.01417) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 42.6717 | Other (At-Grade) Single-Lane | 2019 | Opened September 2019. https://engineer.co.delaware.oh.us/projects/lewiscenter-north/ | 
| (unincorporated),
                OH Delaware Co. United States | Green Meadows Dr. / Highfield Dr. (40.16105, -83.01333) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://engineer.co.delaware.oh.us/image_slider/highfield-green-meadows/ | 
| Waynesville,
                NC Haywood Co. United States | Hyatt Creek Rd. / US 23-US 74 SB Ramps (35.46494, -83.01322) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.1551 | Freeway Ramps (Grade-Separated) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Sterling Heights,
                MI Macomb Co. United States | Utica Rd. / Dodge Park Rd. (42.59179, -83.01110) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 43.9629 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| (unincorporated),
                OH Delaware Co. United States | Cheshire Rd. / Piatt Rd. (40.24014, -83.00623) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2019 | https://www.thisweeknews.com/news/20190716/roundabouts-in-berlin-and-orange-townships-expected-to-open-in-august | 
| Lewis Center,
                OH Delaware Co. United States | Lewis Center Rd. / Home Rd. / Piatt Rd. (40.19918, -83.00608) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.3400 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2023 | Turbo roundabout. Add-lane right-turn bypass lane on west leg. Merging right-turn bypass lane on south leg. https://engineer.co.delaware.oh.us/image_slider/lewis-center-road-and-home-road-roundabout-2023/ | 
| Weinland Park,
                OH Franklin Co. United States | Indianola Ave. / E 6th Ave. (39.98913, -83.00333) | Traffic Calming Circle Existing | One-Way/Two-Way Stop None | 4 Approaches 0 Driveways 27.4516 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Columbus,
                OH Delaware Co. United States | Lazelle Rd. / S Old State Rd. / Storrow Rd. (40.13638, -83.00269) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2021 | |
| Berlin Township,
                OH Delaware Co. United States | Berlin Station Rd. / Piatt Rd. (40.25565, -83.00237) | Roundabout Existing | All-Way Yield None | 4 Approaches 1 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2022 | Peanut shaped. High school in southwest quadrant. https://engineer.co.delaware.oh.us/2022/06/30/berlin-station-road-and-piatt-road-intersection-will-be-closed-7-5-thru-8-26-for-roundabout-construction/ | 
| Bruce,
                MI Macomb Co. United States | 33 Mile Rd. / McKay Rd. (42.81797, -83.00023) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2018 | Year Completed estimated (2017-2019). | 
| Live Oak,
                FL Suwannee Co. United States | SR 51 / Walker St. / Irvin Ave. SW / CR 136 / 11th St. (30.28988, -82.99619) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 53.6268 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Oldcastle,
                ON Essex Canada | Hwy 9 / Hwy 3 / Hwy 401 WB Ramps / Hwy 401 EB Ramps (42.23142, -82.99124) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 60.1340 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2012 | Year Completed estimated (2009-2014). ICD estimated from Google Maps linework. |