16 Pa. Stat. § 8556
Whenever in the construction of a bridge lands are taken in any county joining in such construction and damages are sustained by the owner or owners of such lands the county commissioners in the county where the lands are located when possible shall enter into an agreement with such owner or owners as to the amount of damages to be paid to such owner or owners, which damages if agreed upon shall be paid by the county in which the lands are located. If a satisfactory agreement cannot be made then such owner or owners may present their petition to the court of quarter sessions in the county where the lands are located for the appointment of viewers to ascertain and assess their damages. The proceedings upon said petition and by the viewers shall be governed by existing laws relating to the ascertainment and assessment of damages for building county bridges. The county commissioners, or any other party to such proceedings, may appeal from the award of the viewers to the court of common pleas and shall be entitled to a trial by jury. Such damages when ascertained shall be paid by the county in which the lands taken are located.
16 P.S. § 8556