County roads in Ohio comprise, making up 24% of the state's public roadways as of 2015. Ohio state law delegates the maintenance and designation of these county roads to the boards of commissioners and highway departments of its 88 counties. Each county has distinct construction, signage, and naming practices for the roads under its jurisdiction. Within each county, townships maintain separate township road networks under the advice of the county engineer. Each board of county commissioners certifies the total county- and township-maintained mileage within its county. The Ohio Department of Transportation catalogues these certifications on an annual basis.
Characteristics
A public, non-state-maintained road must meet at least one of the following conditions in order for the county board of commissioners to have authority over it:
Connects one public road to another
Connects a public road to a public school, park, recreation area, or airfield
Connects a public road to at least three private residences or businesses in the first and one private residence or business in each thereafter
The county is not responsible for any roads within the corporation limits of a city or village. When the state abandons a state highway, any right of way outside corporation limits reverts to county or township control. Generally, county roadrights of way are required to be at least wide, allowing for two lanes of traffic, although rights of way as narrow as may be allowed for one-lane roads under a grandfather clause. Before 1915, the law that regulated the width of county roads changed frequently, at times imposing a maximum width of. A 2012 study by the County Engineers Association of Ohio found that of county roads are resurfaced annually, from a combined budget of $229 million for county road maintenance and bridge replacement. In 1997, the CEAO reported that 8% of county roads were unpaved, and that county roads were resurfaced every 17 years on average. The maximum speed limit for an undivided county road is in an unincorporated area. Within municipal corporation limits, the speed limit may be lower based on land use. Counties differ on whether all-terrain vehicles are allowed to be ridden on county roads.
History
On February 17, 1804, an act of the General Assembly gave boards of county commissioners the authority to open roads. Around 1820, the office of county surveyor was first given a role in road and bridge development. Plank roads could be brought under county supervision beginning on January 25, 1861, and commissioners were authorized to build turnpikes on February 16, 1870. Road maintenance responsibilities passed from the county surveyor to the county engineer in 1928. In the 1972 Ohio Manual of Uniform Traffic Control Devices, revision 21, issued 1999, the standard county route shield was a white rectangle bearing a black legend; the blue pentagon was considered an alternative design for a system of important county roads. The blue pentagon became the standard in the 2003 edition of the MUTCD, relegating the white rectangle to an alternative status.
Naming
Terminology varies from county to county: "county roads", "county routes", and "county highways" are variously abbreviated "CR", "C-", "CH", "Co. Rd.", and "CO" on signage. In several northwestern Ohio counties, the county and township road networks form a grid along survey section lines, and each route is given an alphanumeric, sometimes decimal number based on its location within the county. In these counties, county lines often run down the middle of county roads; each side of the road may have a different number. Most counties in neighboring Indiana use a similar system. Many former alignments of U.S. and state routes, particularly U.S. Routes 25 and 40, are now maintained as county routes that retain their former route numbers.
Signage
A majority of Ohio's 88 counties signpost county routes with prominent route shields; the rest post route numbers either on standard street and crossroads signage or on obscure mileposts. For counties that do utilize county route shields, the Ohio Department of Transportation's Ohio Manual of Uniform Traffic Control Devices specifies two designs, the gold-on-blue pentagon found in the national MUTCD and an alternative black on white square also found in some other states. However, not all counties follow this standard: many county highway departments use unique designs, ranging from Athens County's simple green square with white legend, to Vinton County's yellow square with stenciled black legend, to Scioto County's white county outline on an orange square. Henry County uses Arial Bold lettering instead of the standard Highway Gothic typeface. Belmont County has begun replacing green square signs with the standard blue pentagon. Regardless, ODOT-maintained directional signs to county routes use only the shield designs sanctioned in the OMUTCD.
Belmont County Route 28, which is designated as "Mall Road" due to it being the main stretch of road that leads to the Ohio Valley Mall in Saint Clairsville, Ohio, one of the most developed county routes in Belmont County, as it also intersects US Route 40 and Interstate 70. It has a subroute, 28-A, Banfield Road, that runs a parallel route but is less developed than the Mall Road, and serves as an alternate route.
Belmont County Route 214, which intersects both I-70 and 470 near Saint Clairsville and between that city and Bellaire, Ohio. This span of road is known as High Ridge Road, which not only serves as a developed residential area, but also is a main beltway between Bellaire and Saint Clairsville.
Belmont County Route 30. This runs through Bridgeport and ends near the CO-214 and I-470 interchange, leading through the Kirkwood Heights area. Though this road is not traveled upon often, it serves as the only way to reach the broadcast tower of WTRF-TV channel 7 in Wheeling, West Virginia, and one of the retransmitters for The West Virginia Educational Broadcasting Authority on the same tower, giving the route a modest amount of importance in the area.