U.S. Steel plans to invest up to $2.5 billion into upgrades to its Mon Valley Works, which it forecasts will generate $1.7 billion for the state, according to a Monday report from the steelmaking giant. The economic impact is expected to include the combined dollars spent on things such as wages and construction costs associated with the upgrades, according to the report. The investment will preserve the roughly 3,000 jobs at Mon Valley Works and create nearly 3,200 indirect and induced jobs