Charlene Stennis is escorted to safety after her son was rescued from a stranded vehicle in a flooded roadway in Columbia, South Carolina, Oct. 4, 2015.

South Carolina experienced a record rainfall, with at least 11.5 inches falling October 3.

Trey McMillian looks over the damage done by floodwaters on a road in Eastover on Oct. 6, 2015.

Emergency workers meet after the Columbia Canal threatened to breach at a second location in Columbia, Oct 7, 2015.

A car that was stranded is submerged in floodwaters along Lee's Landing Circle in Conway, Oct. 7, 2015.

Rescuers searched early Wednesday for two people missing in floodwaters in South Carolina, while authorities urged residents in hundreds of homes to seek higher ground.

Sarah Dillow helps move ostriches from their flooded pen on October 7, 2015 in Givhans South Carolina. The state of South Carolina experienced record rainfall amounts over the weekend and officials expect the damage from the flooding waters to be in the billions of dollars.

Joey Parrott sit on his front stairway while surrounded by floodwaters along Lee's Landing Circle in Conway, October 7, 2015.

Leon Youngblood tears up flooring in a flood-damaged house in the Forest Acres neighborhood in Columbia, October 6, 2015.

The state of South Carolina experienced record rainfall amounts over the weekend and officials expect the costs to be in the billions.

J.B. Clark, a resident of Lee's Landing, tows a neighbor to the landing along Lee's Landing Circle in Conway, Oct. 7, 2015.

Steve Lowrance takes a break from helping a neighbor clean up a flood-damaged home in the Forest Acres neighborhood Oct. 7, 2015 in Columbia.

Floodwaters rush over a diversion dam in Columbia, Tuesday, Oct. 6, 2015.

Despite an improving forecast, residents of South Carolina were bracing for a second round of flooding as rivers swollen from days of devastating rains make their way toward the Atlantic.

A search and rescue team waits for orders near the Congaree Swamp in Eastover, October 6, 2015.

Emergency personnel look out over sandbags at the breach in the Columbia Canal October 6, 2015 in Columbia.

Nineteen dams have failed, sending water rushing into already flooded areas. Mandatory evacuations took place in Richland County.

Flood waters rush through the breach of the Columbia Canal as emergency workers prepare giant sandbags to plug the hole Oct. 5, 2015 in Columbia, South Carolina.

Miki Woodward holds family dog Butch while sitting on a johnboat along Waccamaw Drive in Conway, October 6, 2015.

The Woodward family came to the landing from their flooded neighborhood to meet daughter Kelly who had been separated from them for a few days because of the floods.

Emergency teams search for stranded people in the Forest Acres neighborhood Oct. 5, 2015 in Columbia.

A truck rests off a washed out road outside of Columbia, Monday, Oct. 5, 2015.

After a week of steady rain, the showers tapered off Monday and an inundated South Carolina turned to surveying a road system shredded by historic flooding.

Police block a flooded road damaged by the recent flash floods area in Columbia on Oct. 5, 2015.

Relentless rain left large areas of the U.S. southeast under water. The states of North and South Carolina have been particularly hard hit, but the driving rain in recent days has spared almost none of the US East Coast.

A national guard helicopter flies over an area damaged by the recent flash floods area in Columbia on October 5, 2015.

Greg Rodermond (R) and Mandy Barnhill, use a canoe to evacuate Mandy's home on Long Avenue in Conway, Oct. 5, 2015.

Erosion threatens the Ocean Club condos on Isle of Palms, Monday, Oct. 5, 2015.

This condo has continually had erosion problems for several years. The current storm has made the problem worse. The Charleston and surrounding areas are still struggling with flood waters due to a slow moving storm system.

Neighbors and friends help clean up a home affected by flood waters in the Forest Acres neighborhood October 5, 2015 in Columbia.

People stand on the safety of a bridge as homes sit in floodwater in a subdivision west of the Ashley river in Charleston, South Carolina, Monday, Oct. 5, 2015.

The Charleston and surrounding areas are still struggling with floodwaters due to a slow moving storm system.

Flood waters rise around a title loan store on Garners Ferry Road in Columbia, South Carolina, Oct. 4, 2015.

The state of South Carolina is experiencing record rainfall amounts.

Flood displaced residents rest at a temporary shelter at St. Andrews Middle School in Columbia, South Carolina on Oct. 5, 2015.

Floodwaters surround a farm and plantation near Huger, South Carolina, Monday, Oct. 5, 2015.

Clare Reigard of Georgetown, South Carolina, abandons her car after it stalled on Duke Street due to heavy rains in Georgetown, South Carolina, Oct. 4, 2015.

Most major roads through the historical South Carolina city have closed due to record flooding.

Police watch rescue boats looking for people trapped in their homes in Columbia, South Carolina, Oct. 4, 2015.

A boy tries to stay dry by climbing along a fence on a flooded street in downtown Charleston, South Carolina on Oct. 4, 2015.

According to South Carolina's Post and Courier newspaper, the rainfall this weekend broke several weather records dating back to 1938 in North Charleston and 1870 in downtown Charleston.

Homes are inundated by flood waters in Columbia, South Carolina, Oct. 4, 2015.

South Carolina experienced record rainfall amounts over the weekend.

A man kayaks on Tall Pines Circle in Columbia, South Carolina, Oct. 4, 2015.

The South Carolina state flag flies in heavy wind and rain during in the third quarter of the game between the Clemson Tigers and the Notre Dame Fighting Irish at Clemson Memorial Stadium, won by Clemson 24-22.