▁from ▁SH ▁ 1 4 6 ▁in ▁Mont ▁Bel v ieu ▁to ▁SH ▁ 1 4 6 ▁in ▁Bay town . ▁ ▁FM ▁ 5 6 5 ▁was ▁designated ▁on ▁July ▁ 9 , ▁ 1 9 4 5 , ▁from ▁Mont ▁Bel v ieu ▁to ▁ 2 ▁miles ▁sout heast ▁of ▁W inf ree . ▁The ▁only ▁change ▁was ▁on ▁November ▁ 2 3 , ▁ 1 9 4 8 , ▁when ▁the ▁road ▁was ▁extended ▁to ▁SH ▁ 1 4 6 ▁in ▁Bay town . ▁The ▁section ▁from ▁Loop ▁ 2 0 7 ▁west ▁to ▁SH ▁ 1 4 6 ▁opened ▁in ▁ 2 0 1 9 . ▁Short ly ▁after ▁opening , ▁the ▁section ▁of ▁Loop ▁ 2 0 7 ▁south ▁of ▁FM ▁ 5 6 5 ▁was ▁cancel led ▁and ▁removed ▁from ▁the ▁state ▁highway ▁system . ▁ ▁FM ▁ 5 6 6 ▁ ▁Farm ▁to ▁Market ▁Road ▁ 5 6 6 ▁is ▁located ▁in ▁Ell is ▁County . ▁It ▁runs ▁from ▁US ▁ 7 7 ▁in ▁Mil ford ▁to ▁I - 3 5 E . ▁ ▁FM ▁ 5 6 6 ▁was ▁designated ▁on ▁July ▁ 1 , ▁ 1 9 6 4 , ▁on ▁the ▁current ▁route . ▁ ▁FM ▁ 5 6 6 ▁( 1 9 4 5 ) ▁ ▁The ▁first ▁FM ▁ 5 6 6 ▁was ▁designated ▁on ▁July ▁ 1 8 , ▁ 1 9 4 5 , ▁from ▁US ▁ 6 7 ▁in ▁Val era ▁south ▁ 6 . 2 ▁miles ▁to