Not good Brian, sorry to see that. I live close to the Mississippi and Missouri river. So we have seen our share of major floods. 93 was terrible where we had we had huge sections of highways closed down for weeks.
My last house was at the bottom section a street where everything would flow into my yard and sewer 13 houses up to the right and 4 to the left back to back so double that number. You could have dang near floated a canoe down my back yard at times.
Ironically my garden was in the middle of the river. I had 2x12's as an embankment between the middle of my garden. That both served as a raised bed and a river channel.
I never really had too many garden problems though again ironically.
I'm good here I'm at the top of a hill so it all drains away from me for the most part. We still have week long thunderstorms to deal with though. It seems we are stuck in that trend right now. The other day we had about 3 inches of rain. The ground is still soaked with more coming soon and the next few day's as well.
Good luck to everybody gotta go to the pool before it rains and I'm rambling again.