Ohio State Route 778

State Route 778
SR 778 highlighted in red
Route information
Maintained by ODOT
Length0.43 mi (690 m)
Existed1942–present
Major junctions
South end SR 101 near Tiffin
North end SR 19 near Green Springs
Location
CountryUnited States
StateOhio
CountiesSeneca
Highway system
  • Ohio State Highway System
SR 776 SR 780

State Route 778 (SR 778, OH 778) is a 0.43 mi (0.69 km) northsouth state highway in northern Ohio.

Existing entirely within Seneca County's Adams Township, SR 778 has an annual average daily traffic of 1150.

The southern terminus is at the intersection of SR 101 and County Road 43 (CR 43), approximately 9 miles (14 km) northeast of Tiffin. It continues the path of the country road. The northern terminus is at the intersection of SR 19 and CR 44, about 3 miles (4.8 km) south of Green Springs. As SR 778 enters the intersection from the south, SR 19 forms the northern and eastern legs, and CR 44 uses the western approach to the intersection.

First appearing in 1942, SR 778 was designated along the short alignment that it currently occupies between SR 101 and SR 19. The route has not seen any significant change since its inception. The road was repaved in 1983 and 1995.