In case the municipality desires to obtain any such bridge, and is unable to agree with the owner or owners of the bridge upon the price to be paid therefor, any court of common pleas of the county wherein said bridge is located, or any law judge thereof in vacation, on application therefor by petition of said municipality, shall appoint three discreet and disinterested persons as viewers; and appoint a time, not less than ten nor more than twenty days thereafter, when said viewers shall meet and inspect the said bridge and view the same, together with the approaches and appurtenances thereto.
53 P.S. § 2620