Ohio State Route 84
A portion of SR 84 runs along the historic Johnnycake Ridge Road. SR 84 is not signed between US 20 and the eastern end of US 6 concurrency.
History
Route 84 was established in 1923 and originally ran from 1-mile (1.6 km) south of Madison to 2 miles (3.2 km) west of Andover along the current alignment of State Route 307; from 1-mile (1.6 km) south of Madison to Dorset; and from Dorset to West Andover. It was expanded in 1926 to Willoughby Hills along a previously unnumbered road. In 1931, the route was truncated at Dorset and Dorset to West Andover was decertified. In 1935, Route 84 was rerouted from Madison to Ashtabula along the previous State Route 307 alignment, which was unnumbered before 1933. The former alignment from south of Madison to Dorset was certified as State Route 307. In 1938, it was extended to the Pennsylvania state line along the former alignment of State Route 83 from Ashtabula to Kelloggsville, which was unnumbered before 1926, and along a previously unnumbered road from Kelloggsville to the state line.
Major junctions
| County | Location | mi | km | Destinations | Notes |
|---|---|---|---|---|---|
| Cuyahoga | Euclid | 0.00 | 0.00 |    US 6 west / US 20 (Euclid Avenue) | Western end of US 6 concurrency |
| Richmond Heights | 2.20 | 3.54 |  SR 175 (Richmond Road) | ||
| Lake | Willoughby Hills | 3.28 | 5.28 |  US 6 east (Chardon Road) / Bishop Road | Eastern end of US 6 concurrency |
| Wickliffe | 3.67 | 5.91 |       I-90 to I-271 south / SR 2 – Erie, PA, Columbus, Cleveland, Painesville | Exit 187 (I-90) | |
| Willoughby | 6.46 | 10.40 |  SR 91 (S.O.M. Center Road) | ||
| 8.35 | 13.44 |   SR 174 south (River Road) / Willoughcroft Road | Western end of SR 174 concurrency | ||
| 8.69 | 13.99 |  SR 174 north (Ridge Road) / Oakdale Avenue | Eastern end of SR 174 concurrency | ||
| Mentor | 10.99 | 17.69 |  SR 306 (Broadmoor Road) to I-90 | ||
| 13.19 | 21.23 |  SR 615 (Center Street) to I-90 | |||
| Concord Township | 18.98 | 30.55 |  SR 44 to I-90 / SR 2 – Chardon, Painesville | Interchange | |
| Painesville | 20.53 | 33.04 |  SR 86 east (Painesville Warren Road) | Western end of SR 86 concurrency | |
| 21.33 | 34.33 | SR 86 west (South State Street) / East Walnut Avenue | Eastern end of SR 86 concurrency | ||
| Madison | 32.31 | 52.00 |  SR 528 south (River Street) to I-90 | Western end of SR 528 concurrency | |
| 32.26 | 51.92 | SR 528 north (Lake Street) | Eastern end of SR 528 concurrency | ||
| Ashtabula | Geneva | 37.79 | 60.82 |  SR 534 | |
| Saybrook Township | 43.44 | 69.91 |  SR 45 – Rock Creek | ||
| Ashtabula Township | 49.53 | 79.71 |  SR 11 to I-90 – Youngstown | Interchange | |
| Kingsville Township | 54.53 | 87.76 |  SR 193 north / East Main Street – North Kingsville | Western end of SR 193 concurrency | |
| 55.17– 55.45 | 88.79– 89.24 | I-90 – Cleveland, Erie, PA | Exit 235 (I-90) | ||
| 55.38 | 89.13 | SR 193 south | Eastern end of SR 193 concurrency | ||
| Monroe Township | 60.60 | 97.53 |  SR 7 – Andover, Conneaut | ||
| 63.34 | 101.94 |  PA 226 east – Albion | Pennsylvania state line | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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