In City of Pittsburgh v. Pennsylvania Department of Transportation, 490 Pa. 264, 416 A.2d 461 (1980), the Supreme Court affirmed an award of interest in a mandamus action brought by the City of Pittsburgh to be paid by PennDOT. In that case, the Public Utility Commission (PUC) ordered the City of Pittsburgh (City) to begin the immediate demolition and reconstruction of portions of a bridge. The PUC mandated that fifty percent of the project was to be paid by PennDOT, forty percent was to be paid by the City, and ten percent by Allegheny County. Costs of $ 655,731.00 were allocated to PennDOT. After repeated requests for payment failed, the City filed a petition for review in the nature of mandamus with this Court. PennDOT ultimately paid the allocated costs but refused to pay interest on that sum. When disposing of the City's petition for review, we awarded interest. On appeal, the Supreme Court stated that the Mandamus Act of 1893, Act of June 8, 1893, P.L., as amended, formerly, 12 P.S. 1919, repealed by the Act of April 28, 1978, P.L. 202, did not specifically, or by indication, provide for an award of interest against the Commonwealth. Nonetheless, it determined that the presumption relied upon by the Court in Philadelphia was belied by the fact that PennDOT was clearly not always ready to pay its obligation. City of Pittsburgh, 490 Pa. at 269, 416 A.2d at 464. It further added that equitable principles, despite the fact that the action in mandamus was on the law side of the Court, warranted an award of interest. Id.