After talking to a few people after this flood they are finding out their flood insurance does not cover "replacement costs" on contents but instead they opted for the less costly version that is pro-rated. Be aware of the type of insurance you have and this applies to fire insurance too, "replacement costs" will pay for the full value of the item or equivalent. If you have pro-rated insurance you only get the value of the product at the time it was destroyed.
When we had the fire they did an inventory of the whole house, this was used to generate a list of items and each item had a column for the cost to replace it with a new item. Next to that was the pro-rated value and those values were mostly in the 30 to 60% range.
You can see where this is leading too, if you have to replace the entire contents of a house but you're only getting 50% of what it's going to cost to purchase those items you're going to be in trouble.