I can feel your pain. The flood is something else. My friends have to leave their houses even there is no road to crossover to continue your journey. But as an individual can u really change it? We u can if u have a strong backup and force but can't if u are all alone. Nigerian Government will not deny the fact that they were not aware that the flood will occur because National Weather service forecaster do give all necessary info about that. Also within these forecasters solutions to remedy this situation has been presented in one way or the other yet they didn't value it because human lives means nothing to them.
My own suggestion is allow the government to seek for the right remedy from the subject themselves then u gather ur and send. If not u are just thinking in vain because they won't value it.