In all cases where the width of a state road, laid out under and by virtue of the provisions of an act of assembly authorizing the same, has not been fixed and determined either by the action of the legislature or by the courts of the proper county wherein the report of the commissioners appointed to view and lay out has been presented and ordered to be filed, the several courts of quarter sessions of this commonwealth are hereby authorized and empowered, in their respective counties, upon the presentation of a petition for that purpose, to fix the width of all such roads; such width not to exceed fifty feet in any case.