▁ 7 ▁was ▁red es ign ated ▁as ▁SH ▁ 6 6 ▁on ▁November ▁ 3 0 , ▁ 1 9 6 1 ) ▁to ▁SH ▁ 2 0 5 . ▁On ▁June ▁ 1 , ▁ 1 9 6 5 , ▁FM ▁ 5 4 9 ▁extended ▁south west ▁to ▁FM ▁ 7 4 0 . ▁On ▁May ▁ 2 5 , ▁ 1 9 7 6 , ▁FM ▁ 5 4 9 ▁extended ▁north ▁to ▁FM ▁ 5 5 2 . ▁On ▁September ▁ 2 4 , ▁ 2 0 0 9 , ▁the ▁section ▁from ▁I - 3 0 ▁to ▁SH ▁ 2 7 6 ▁was ▁given ▁to ▁the ▁city ▁of ▁Rock wall , ▁so ▁the ▁section ▁north ▁of ▁I - 3 0 ▁was ▁ren umber ed ▁FM ▁ 3 5 4 9 . ▁ ▁Major ▁inter sections ▁ ▁FM ▁ 5 5 0 ▁ ▁FM ▁ 5 5 0 ▁begins ▁at ▁an ▁intersection ▁with ▁Farm ▁to ▁Market ▁Road ▁ 5 4 9 / F arm ▁to ▁Market ▁Road ▁ 7 4 0 ▁in ▁He ath . ▁The ▁highway ▁runs ▁east ▁to ▁Mc L end on - Ch ish ol m ▁where ▁it ▁intersect s ▁with ▁State ▁Highway ▁ 2 0 5 . ▁FM ▁ 5 5 0 ▁runs ▁north ▁from ▁SH ▁ 2 0 5 ▁to ▁State ▁Highway ▁ 2 7 6 , ▁where ▁FM ▁ 5 5 0 ▁ends . ▁ ▁FM ▁ 5 5 0 ▁was ▁designated ▁on ▁July ▁ 9 , ▁ 1 9 4 5