Bridgestone Americas Tire Operations announced yesterday it will invest $36.6 million in its Warren County plant to increase production capacity by an additional 900 truck tires per day. The expansion is expected to be complete in the first quarter of 2013 and is projected to create 50 new jobs.Bridgestone Americas Commercial Solutions group president Kurt Danielson made the announcement at a press conference attended by local, state and company officials at Bridgestone Arena in Nashville.“With increasing demand in the market, it was time for us to increase capacity to meet the needs of customers seeking world-class Bridgestone and Firestone truck and bus tires,” said Danielson. “The outstanding people and facilities at our Warren County plant, as well as the long-standing partnership we have with the Warren County community and the state of Tennessee, made it the perfect location to make this investment and expand our production.”In addition, Bridgestone Metalpha USA, a subsidiary of Bridgestone Corporation, announced a $75 million expansion at its plant in Clarksville, which will provide an additional 45 jobs in that community.Gov.