Some ideas I was trying to put together earlier after watching the news:
Severe and prolonged flooding.
Damage done:
Foundation movement. Hygiene. Wiring. Plumbing. Plastering. Furniture.
Other Problems:
No food storage or cooking facilities. Having to live elsewhere. Loss of mementoes. Splitting up families. Employment difficulties.
Foundation movement:
Be careful what you sign when the insurance people send out loss adjusters. You need to be sure that the foundations haven't moved before signing away any potential claims with a settlement with the insurers that just gives you funds for a clean up.
Hygiene.
If you have had your home awash then the sewage system will have backfired on you. If the flood levels were above the toilet pan, expect the worst. But even low levels will have brought in unknown possibilities.
Soft furnishings will need hosing down and drying out. They will probably be ruined but leaving them to rot will be a depressing and smelly experience. Rinse the dirt out of them and get them outside to dry.
The above goes for all clothing and the like that has got wet. The main problem in washing clothing is that there will be no electricity in areas badly affected by flooding.
A secondary issue is that even in laundrettes where there is electricity the problems will be so bad that the drums will often be filthy when you come to use them. I don't know why that should be but some people have no idea.
After getting the place cleared the walls and floors need hosing down. A pressure washer and lots of Dettol is a must.
Electrical items that have been immersed in water are likely to be dangerous to use. It might be possible to salvage them if prompt attention is given. Washing machines and the like may be redeemable if the coils to the motors are cleaned and dried.
Anything more on that subject is speculation.
Wiring:
I am no expert on plumbing or wiring but...
Any wiring covered with water, under floorboards for example, will probably need replacing. In theory any wires with only the sleeving immersed should be OK but a pinprick cut in that sleeving will have allowed ingress. Of course the individual wires inside the sleeve will also be sleeved and two of these will also need to have been compromised before they can short. And one of them has to be the "Live" wire.
Any wires that have connection boxes and other open ends that were submerged will have to be replaced. In fact it is difficult to ensure a good job has been done without renewing all the wiring in the areas concerned.
Anyone care to take on where I left off? Some advice about plumbing and plastering would be an idea but the wiring needs are probably paramount for anyone without insurance.