 After splitting from SH-152 near Eakly, SH-58 heads north to an interchange with Interstate 40, then passes through Hydro.Nine miles (14.5 km) later, it terminates at the Custer County line to become a county road, which eventually connects to State Highway 54.The northern SH-58 begins at US-270/281/SH-3/33 west of Watonga.