53 Pa. Stat. § 2553
In case the compensation for damages accruing from such appropriation have not been agreed upon, any court of common pleas of the proper county, or any law judge thereof in vacation, on application thereto by said city or any person interested, shall appoint three discreet and disinterested freeholders as viewers and appoint a time, not less than ten nor more than twenty days thereafter, when said viewers shall meet upon the property and view the same and the premises affected thereby. The said viewers shall give at least ten days' personal notice of the time of their first meeting upon the owners, agents, attorneys or representatives thereof, if the same reside within the county in which such city is located, otherwise by handbills posted upon the premises or by such other notice as the court shall direct. The said viewers having been duly sworn or affirmed faithfully, justly and impartially to decide and true report to make concerning all matters and things to be submitted to them and in relation to which they are authorized to inquire under the provisions of this act, and having viewed the premises or examined the property, shall hear all parties interested and their witnesses and shall estimate and determine the damages for the property taken, injured or destroyed, to whom the same are payable, and having due regard to the advantages and disadvantages; they shall give at least ten days' notice thereof in the manner herein provided to all parties interested of the time and place when said viewers will meet and exhibit said report and hear all exceptions thereto. After making whatever changes are deemed necessary the said viewers shall make report to the court, showing the damages, if any allowed, and file therewith a plan showing the location of said bridge, or bridges, the properties taken, injured or destroyed, and the names of the persons to whom such damages are payable.
53 P.S. § 2553