Translation of "Dyke" in Portuguese

So when the foaming river, uncontrolled, / bursts through its banks and riots on the plain, / o'er dyke and dam the gathering deluge rolled, / from field to field sweeps on with cattle, flock and fold.

Tanto ímpeto não tem o rio que, na enchente, / com fúria rompe diques e represas, / e em torrente arrojando-se, a espumar, / inunda as glebas, arrastando pelos campos / de cambulhada estábulos e reses.