Opinion by
This appeal is from the refusal of a writ of mandamus to compel the commissioners of Clinton County to rebuild a bridge Yfhich was swept away by a flood in 1913. The writ was denied because the court below was of opinion that the structure so destroyed was not a county bridge, and the appellees were, therefore, under no duty to rebuild it. The original construction of a county bridge is regulated by statute, and a county cannot be required to build it unless all statutory provisions are complied with: Railroad Company v. Lawrence County, 198 Pa. 1; Commonwealth v. Baker, 212 Pa. 230; Commonwealth v. Bowman, 218 Pa. 330. The prerequisites to the authority of county commissioners to build a bridge are: (1) A report of viewers that the bridge is necessary and would be too expensive for the township; (2) that these facts have been made to appear to the court, grand jury and commissioners of the county; and (3) that the bridge has been entered on record as a county bridge. The question before the court below was not as to the duty of the county commissioners to build a bridge in the first instance, but as to their duty to rebuild what the relator avers had been a county bridge, originally constructed and subsequently maintained by the county under a statutory duty to do so.
From the admitted facts in this ease there is a conclusive presumption that the destroyed bridge was a county bridge, and we proceed to state them: In 1856
Though tbe bridge which tbe appellees refuse to rebuild is on a State route, tbe duty of building and maintaining a bridge there, which has rested on tbe county for more than sixty years, still continues: Commonwealth ex rel. v. Bird, 253 Pa. 364, and Commonwealth ex rel. Attorney General v. Gross et al., January Term, 1917, No. 340, 261 Pa. 476.
Tbe order of tbe court dismissing tbe petition for a mandamus is reversed, and tbe record is remitted with direction that tbe writ be issued as prayed for.