The cost to construct the five-mile extension of the Gilcrease Expressway and the toll charged to motorists using it will be higher than initially reported, the executive director of the Oklahoma Turnpike Authority said Thursday.Tim Gatz told a group of local officials gathered in Tulsa for an update on the project that the roadway is now estimated to cost approximately $330 million to $340 million, or about 10 percent more than originally thought.Late last year, Gatz told the same working group that motorists driving private vehicles could expect to pay a toll of $1 to $1.50. The toll is now...