I would like to create a market garden in a space of about 1 acre. The problem with this area is that it floods once or twice a year. The area is in a bit of a depression so when there are heavy rains then the ground becomes waterlogged. I assume the solution is raised beds, but if there are other options I would like to hear about them.
If I do raised beds I would like recommendations on size and spacing along with considerations for larger aisles. Another design consideration is if these were to serve as community garden plots instead of a market garden.
Hi. Sounds like a good situation. You could think of swales as well to keep most of the water on the land, slowly infiltrating.
Bring all the water into a pond high on the land and attract beneficial insects and creatures which will help stabalize your ecosystem and irrigate with the water.
Both options would lessen your need for high raised beds. The higher the raised beds get the more need for watering your shallow rooted anuals in dry times.
But it all depends on your situation.
This edible acres playlist might help you.
The topography of my parcel means that this is close to the lowest point in the land. It is river bottom land (well really creek bottom) but from what I've observed I only need a few inches of verticle height to get the flood protection I need.