Answer: embanked

AnswerCrossword Clue
EMBANKEDHaving flood protection
EMBANKEDProtected from floods, in a way
embankedConstruct a bank of earth or stone to carry (a road or railroad) over an area of low ground
embankedEMBANK, to enclose with a raised structure
embankedConstruct a wall or bank of earth or stone in order to confine (a river) within certain limits