 Recurrence intervals for the peaks equaled or exceeded 50 years at all five of the aforementioned sites in the Tygart basin, and four were in excess of 100 years.Also, at one newly established gauging station, Three Forks Creek near Grafton, the peak discharge, 12,000 ft3/s, was estimated to exceed the 100-year recurrence interval.The Grafton Downtown Commercial Historic District was listed on the National Register of Historic Places in 1984 and the Grafton National Cemetery was listed in 1982.