Adding top soil to uneven yard Bermuda grass south louisiana.

Have a new home and the pad is elevated a good bit so the outside of the pad had to be tapered down. During the year while waiting for the Bermuda to grow, the rain would washout making it uneven. There are some spots that need lots of dirt to fill voids. Can’t put that much sand to level so using topsoil. I know I will be introducing weeds but it needs to be done so my reel mower can cut like it’s supposed to plus I am sand leveling next year. Do I have enough growing time left for Bermuda to make a full return to where it is before it goes dormant?