This slow-motion, river-flooding disaster will continue well into next week.
The animals killed by Florence will be buried, composted or "rendered" for usable parts, state officials said.
A new round of evacuations was ordered in SC as the trillions of gallons of water dumped by Hurricane Florence meanders to the sea, raising river levels and threatening more destruction.
In a Friday press conference, McMaster said the state's resources and personnel had shifted to the PeeDee region.
McMaster estimated the damage from flooding in his state at $1.2 billion.
In South Carolina, the flood was far from over.
"We should act immediately to allay such concerns and provide financial certainty to teachers, many of whom are likely burdened with expensive home repairs", they wrote.
Florence County emergency management officials issued the order Friday morning for about 500 people along 58 roads and streets in the area. Though the hurricane packed 90 miles per hour (145 kph) winds as it came ashore, the amount of water Florence pushed ashore and dropped inland has swamped vast areas still vulnerable to rising rivers. It soon became clear that they were needed.
The potatoes can be picked by hand, but "we use a plow that flips them out of the ground", he said.
The president later told reporters the homeowner told Trump his insurance company didn't want to pay for the damage, according to the report.
Authorities say the death toll has now risen to 43 dead in the aftermath of former Hurricane Florence.
The storm is responsible for at least 37 deaths, including 27 in North Carolina, eight in SC and two in Virginia.
Duke Energy, the area's biggest utility, reported that tens of thousands of customers in North and SC were still without power Thursday.
"Please heed the warnings", Sheriff Lane Cribb said.
"When outlets fail to connect these events to global warming, audiences are left uninformed about some of the most critical decisions we face", David Arkush, who directs Public Citizen's climate program, said in a statement.
Thousands of homes are still underwater in the Carolinas and thousands of families have had to be rescued from the floods.
"I'm so sad just thinking about all the work we put in. Don't drive across it and if there is a barricade up, do not go around that barricade".
Georgetown County Administrator Sel Hemingway warned the area may see a flood like it has never seen before. Environmentalists warn that from-for problems with a high water also resulted in a serious leak of sewage.
Kevin Tovornik was tearing soggy carpet out of the house he has owned for 20 years in Conway, where the Waccamaw River was still rising.
But even as some residents remain in the grip of an ongoing disaster, officials are eyeing the road to recovery.
"The National Guard is on standby if that's not big enough", Emrick said of the dam. According to the National Weather Service, nearly 36 inches (91 centimeters) of rain fell over the city that lies along alongside the Cape Fear River.
More than three dozen flood gauges in North and SC showed flooding, according to the National Weather Service.
Sheehan said floodwaters also had overtopped a steel retaining wall containing one of three large coal ash dumps lining the lakeshore.