sentences:  The longest section of US 81 in 1980 not cosigned with the Interstate ran from I-35 in Hillsboro north to I-35W, just north of Grandview.This section of US 81 became SH 81 in 1991 when most of US 81 in Texas was decommissioned.The section of highway from Devine to Lytle became SH 132 and the section from Derby to the Pearsall town square became Spur 581 when US 81 south of Fort Worth was decommissioned in 1991.