The state’s congested, deteriorated or dangerous roads cost Tennessee drivers more than $6 billion a year, according to a new study.

In Nashville, those same issues cost motorists an average of $1,667 a year, according to the study, released Tuesday by D.C.-based nonprofit TRIP. The release of the study comes as the Tennessee House of Representatives is set to vote Wednesday on Gov. Bill Haslam’s transportation-funding proposal, which would hike the state’s gas taxes to pay for a backlog of…