The long-awaited four lane highway connecting McMinnville and Smithville may still be a long way from completion, but actual construction is expected to be visible before the end of 2018. Tennessee Transporta-tion Commissioner John Schroer said bids for the first phase, a 3.3-mile segment of a “super two-lane,” are due to be released to contractors in late summer or early fall. Phase two will follow quickly, adding another five miles of expanded roadway, he said.