Thor Construction plans to build a $30 million retail and office development - including a new headquarters for the company itself - on Minneapolis' North Side. The Star Tribune reports on the project, which Fridley-base Thor announced late Tuesday. The 92,000-square-foot development, located at Plymouth and Penn avenues, would include multi-tenant offices and retail space, along with an underground parking garage. "We feel confident that this is the right move for us, as a successful minority-owned...