Tennessee State Route 226State Route 226, also known as Airport Road, is a north–south state highway in Hardin [County, Tennessee].Route descriptionSR 226 begins just south of Walkertown at an intersection with Tennessee [State Route 128|SR 128]. It goes through wooded areas to pass through Maddox, where it has an intersection with SR 69 and passes by the Savannah-Hardin County Airport. The highway then turns northward through farmland to enter Olivet and have a short concurrency with SR 203. SR 226 then comes to an end shortly thereafter at an intersection with U.S. [Route 64 in Tennessee|US 64]/SR 128. The entire route of SR 226 is a two-lane highway.