NA Tiger Sports Welcome to NASH ! Congratulations Class of 2002 North Allegheny Senior High School, located at 10375 Perry Highway, Wexford, PA, 15090, in McCandless Township, was named a Blue Ribbon School of Excellence by the U. S. Department of Education. A comprehensive high school (grades 11 & 12), NASH offers over 200 courses to meet the needs, abilities, and interests of its approximately ...