Dear Haiti ... go bigger. You've got what it takes. Healing your larger ecosystems (one region at a time) is where you need to put your efforts and resources right now for long-term change.
This canal may divert water from the river onto your land but your soil will not hold the moisture until there is strategic vegetation and organic matter in the soil.
Do as Rwanda, China, and Ethiopia did in the following video and your situation will begin to change in as little as 18 months ... https://bit.ly/46jZ1Ac ... (29:25min)
Haiti needs to build Haiti. We'd like to help when you're ready.