in the omnibus road bill act of 1931, lr 22006 was established, spanning the portion of current pa 39 from the susquehanna river north of harrisburg to hanoverdale at the west hanover–south hanover township line, three miles north of union deposit. the remainder of current pa 39 north of swatara creek was a state-aid route designated a-306, which ran from south hanover township to union deposit. those sections of roads were paved in 1926, in preparation for gaining state aid.