| Central |
Ross | US 50 from Chillicothe SW to Bainbridge I-71 from Delaware N. to Mansfield |
| Delaware | SR 315 from I-270 N. to Delaware
SR 745 from I-270 N. to Bellepoint
| Licking | SR 13 from I-70 N. to Newark/Heath |
| | |
| Northeast |
| Richland/Ashland | SR 97 from I-71 E. to Londonville |
| Ashland/Knox | SR 3 from Loudonville S. to Jelloway SR 534 from Damascus N. to Harpersfield |
| Geauga/Portage | SR 700 from Burton S. to Freedom |
| Geauga/Lake | SR 608 from Middlefield N.W. to I-90 |
| Geauga | US 322 from Gatesmills E. to Huntsburg |
| Summit | I-271 & I-80 over the Cuyahoga Valley N.R.A. |
| Medina/Summit/Portage | SR 303 from Hinkley E. to Shalersville |
| Holmes County | SR 39 from Loudonville E. to Sugarcreek & I-77 |
| | |
| Eastern |
| East Central | I-77 from Canton S. to Marietta |
| | |
| Southeast |
| Morgan | SR 78 from Glouster NE to McConnelsville |
| Hocking | SR 374 & 664 around the Hocking Hills Region |
| Hocking/Vinton | SR 278 from Nelsonville S.W. to Prattsville |
| Jefferson | SR 151 from SR 7 W. to Hopedale |
| Meigs | SR681, SR124 & SR248 from Tuppers Plains to Keno |
| Jackson/Lawrence | SR 73 from Oak Hill S. to Ironton |
| Monroe/Washington | SR 26 from Woodsfield to Marietta |
| | |
| Southwestern |
| Warren | I-71 over Little Miami River Gorge |
| Scioto | Shawnee State Forest & State Park Roads |
| Regional | US 50, SR 32/124 The Appalachian Highway from Athens to Cincinnati |
| | |
| Northwestern |
| Regional | SR 65, SR 424 & SR 111 from Perrysburg S.W. to Defiance
SR 105, SR 163 & SR 53 from Bowling Green N.E. to Catawba Island |