| State: | TN |
| Type: | Sec |
| Route: | 240 |
| Map Custom: | yes |
| Map Notes: | SR 240 highlighted in red |
| Alternate Name: | Turnpike |
| Length Mi: | 17.2 |
| Established: | July 1, 1983[1] |
| Direction A: | South |
| Terminus A: | near Deerfield |
| Junction: |
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| Direction B: | North |
| Terminus B: | in Summertown |
| Counties: | Lawrence |
| Previous Type: | I |
| Previous Route: | 240 |
| Next Type: | Sec |
| Next Route: | 241 |
State Route 240 (SR 240) is a 17.2adj=midNaNadj=mid north–south state highway in Lawrence County, Tennessee. Except for a short stretch in Summertown, the entire route of SR 240 is known simply as Turnpike.
SR 240 begins as Turnpike just west of Deerfield at an intersection with US 64/SR 15. It goes northeast along the southern edge of Laurel Hill Wildlife Management Area to pass through farmland and have a short concurrency with SR 241 before passing through Henryville, where it has an intersection with SR 242. The highway then crosses the Buffalo River passes through a mix of farmland and wooded areas before entering Summertown, where it turns east to have a concurrency with SR 20 before turning south along Monument road and coming to an end at an intersection with US 43/SR 6. The entire route of SR 240 is a two-lane highway.[2]
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