Mayor Steve DeBrum called it ‘the greatest . . . project Manteca has ever seen.”And he may be right.The City Council Tuesday night approved a series of documents to cement a deal for Great Wolf Lodge to build a 500-room hotel/indoor water park on 29 acres owned by the city just west of Costco along the 120 Bypass.Great Wolf representatives noted Centerbridge Partners — the private investment firm that purchased the company more than three years ago — has already released millions of dollars to move the Manteca project forward. That includes work on architectural drawings as well as retaining Turner Construction to do initial site work needed to build the complex.As Northern California’s first indoor waterpark consisting of 109,767 square feet it will tap into the same market that Bass Pro Shops did in opening their store in Manteca 10 years ago — 18 million plus consumers within a 100-mile radius.Great Wolf plans on spending millions of dollars a year marketing the Manteca resort once it is open. It will give the city media exposure that dwarfs what TV and radio blitzes Manteca Waterslides as well as Manteca Trailer with the signature “Maaan-tee-ka!” sign-off line did for the city in the 1970s and 1980s.‘The greatest projectManteca has ever seen’As to what will make it “the greatest project Manteca has even seen”:uThe $180 million investment is the largest ever for a private sector building in Manteca’s history.