SB: $1,358.67 (226.4 bb)
BB: $649.75 (108.3 bb)
UTG: $412.18 (68.7 bb)
Hero (MP): $600 (100 bb)
CO: $651 (108.5 bb)
BTN: $606.59 (101.1 bb)

Preflop: Hero is MP with Ts Td
UTG folds, Hero raises to $18, CO folds, BTN calls $18, SB folds, BB calls $12

Flop: ($57) 9c 8c 8h (3 players)
BB checks, Hero bets $42, BTN calls $42, BB calls $42

Turn: ($183) 3d (3 players)
BB checks, Hero bets $122, BTN calls $122, BB folds

River: ($427) Ah (2 players)

BB is a decent reg and BTN is a mediocre breakevenish player. Is my line along with a river check/fold on this card totally standard? What about check/calling blank rivers?