This is not a pleasant thing to think about but it would be better to know ahead of time, rather than trying to locate a place to take an animal in the midst of a crisis.
Texas Carcass Disposal related to Disaster
How to properly dispose of a Carcass in Texas
MAP of Texas Land fills that accept Animal Carcass- shows if diseased animals, or not, are accepted.
I could not find a list or detailed information on this topic. For now, if this emergency comes up for you, try calling Louisiana Animal Health veterinary department at 225-925-(three, nine, eight, zero.) I will try to get printed materials from this office.