SR 270 begins in
Marshall County in
Chapel Hill at an intersection with
US 31A/
SR 11/
SR 99 just south of downtown. It goes east to leave Chapel Hill and pass through wooded areas, where it crosses a bridge over a creek, before passing through farmland to cross into
Bedford County.{{cite web|url=https://www.tn.gov/content/dam/tn/tdot/maps/county-maps-(us-shields)/h-m/Marshall%20County.pdf ==Major intersections==