74 Pa. Stat. § 127
The engineer or surveyor, or his duly accredited assistants or representatives, shall do no unnecessary damage to the property on which a survey station stands. The owner of the land shall be reimbursed for all damage done in so entering, the amount of damages to be agreed upon before hand and paid promptly upon completion of work at said survey station. Where the amount of damages to be paid has not been or can not be agreed upon beforehand, the party proposing to enter upon said property shall file good and sufficient bond in the court of quarter sessions of the county in an amount to be approved by the court, conditioned for the payment of all damages and costs when the same are finally ascertained and fixed. The amount of damages to be paid shall be determined by three viewers of the county in which the property is located, appointed by the court of quarter sessions from the county board of viewers. The proceedings for the ascertainment of damages shall be in accordance with the general road laws of the Commonwealth for the ascertainment of damages for the taking, injuring or destruction of property in the laying out and opening of public roads.
74 P.S. § 127