Woodmorappe does present some interesting ideas. However, his presentation has lots of holes around which he attempts to side step. I purchased his book so that I could check out some of his ideas. I haven't read the entire thing, but browsing through it indicated that it, in reality, is a work of fiction rather than a "feasibility study."
For instance, he speaks about "deeply bedding" the stalls wherein the animals were kept, and then he mentions that they would, therefore, not need to be stripped daily, but just have the manure cleaned out on a daily basis.
Have you ever mucked out a stall? I have and even if you work very fast, you need to devote at least 10 minutes to each stall to pick out the manure and remove the wet straw. If you do not do this on a daily basis, you are going to have some very sick animals.
As Dave has pointed out, just feeding the 16,000 animals would take most of the day for Noah and his family. Add to that the necessity of cleaning stalls and exercising the animals, and you simply run out of time.
Additionally, the logistics of procuring food for all of the animals presents a major problem. While creationists will state that Noah had over 100 years to put food away for the animals, this argument does not hold up when considered factually. Hay does not retain its nutritional value indefinitely. Any fresh hay that was loaded just prior to the flood's onset would be close to a year old by the end of the voyage, and already losing much of its nutritional value. Hay that was loaded onto the Ark years before the voyage would be utterly useless as feed, and animals eating it would receive no nutrition whatsoever and would, therefore, die before they ever got off the ark.
Considering that the loss of ANY animal would mean the loss of an entire "kind" (equine, canine, feline,) Noah couldn't afford to have any animals die. Remember, Woodmorappe did not state that species or types of animals went on board, but only two representatives of an entire kind. Talk about putting all of your eggs in one basket!
Then, too, we need to consider the "water canopy" covering the earth which presumably produced most of the rain. A canopy containing sufficient water vapor to produce enough rain to cover the earth to a uniform depth of over 15,000 feet (15 cubits above the highest mountain) would be miles thick, and the earth would receive absolutely no light at all. No light means no life....of any kind...animal, human, or plant....so the "flood" issue would really be moot, since the earth would have been a dead planet.
Even if the depth of the canopy was considerably reduced, it would still need to be extremely thick and the pressure on the earth's surface would be greater than that found on the floor of the ocean. Additionally, the trapped heat from the sun would cause surface temperatures in excess of 800 degrees. No need for a flood, since all life would have been parboiled long before.