 North of Troy the old two-lane alignment of US 51 resumes and is currently signed as SR 184 and runs to Union City.County maps published by TDOT do not show the recent realignment of this highway, however, the Official Transportation Map and signs erected in the field reflect the change as stated above.For several years, SR 211 was detoured off its alignment using SR 105, US 51, and SR 183 to avoid the closed section of roadway roughly from the Obion County line at Trimble north to Obion.