Ortega led city officials in signing and awarding the contract to the winning bidder, Kane Construction Inc., a local construction firm affiliated with the international Conestoga-Rovers Associates, in Manila last week.
Kane Construction and four other companies took part in the bidding early this year.
Representatives of the World Bank (WB) and the Local Government Finance Division evaluated the bids.
Ortega said the WB-funded project will cost P163 million and will be constructed through the design-build-and-operate scheme.