Ten years ago, large swaths of metro Atlanta were flooded when unrelenting rain fell from Sept. 15-22, 2009 on already-saturated ground. Roads were impassable, bridges were underwater, homes were inundated and even roller coasters at Six Flags were submerged.

The floods were record-breaking, catastrophic, and left a lasting impact for the metro area.

Paddling down Paces Ferry Drive, Ben Prince (left) used his canoe to ferry neighbor, Jim Hobbs and his dog, Dylan (right) to and from their home as they gathered supplies. Vinings residents and business owners were dealing with a major flooding issue Tuesday, September 22, 2009 as the Chattahoochee River made its way along the banks near Paces Ferry Road. Many residents with upscale homes were hit hard, some for the second time since an earlier post millennia flooding episode. Since early Monday, seven lives have been taken and several other people remain missing. The record-setting rains also have closed schools and roads and have left people stranded in their homes. The river’s level near Vinings was at 27.36 feet before daybreak Tuesday after cresting at 28.1 feet overnight. Flood stage is 14 feet, and anything above 20 feet is considered “major” flooding. The river was expected to slowly recede, falling below flood stage on Wednesday. The level overnight was the second highest on record, exceeded only by a crest of 29 feet in 1919. John Spink, jspink@ajc.com AJC FILE PHOTO
Photo: The Atlanta Journal-Constitution

The flooding

There already were record levels of moisture when storms developed in the area on Sept. 15, said Laura Belanger, a senior service hydrologist at the National Weather Service in Peachtree City. Then the storms continued with near-constant rainfall for more than a week.

“We had pretty wet conditions late that summer,” said Belanger, who was an intern at the NWS in 2009.

The flooding peaked overnight Sept. 20 and into Sept. 21.

Fulton, DeKalb, Gwinnett, Bartow and Cherokee counties all got at least five to seven inches of rain in a 24-hour period that began on the evening of Sept. 20. It was worse in Cobb and Douglas counties. One Douglas location was swamped with more than 21 inches of rain in 24 hours, Belanger said.

090922 Lawrenceville -- The swollen Sweetwater Creek closed Hwy 29 in Lawrenceville Tuesday, September 22, 2009. More rain is likely and a flood watch remains in effect through Tuesday night. As day began to break Tuesday morning, the weather service's Web site showed a line of storms over north Georgia from Dalton to Gainesville -- but not metro Atlanta. Vino Wong, vwong@ajc.com
Photo: Vino Wong/vwong@ajc.com

Cobb County hit hard

Sweetwater Creek’s levels rose to 20 feet above flood stage — soaring past the creek’s previous high-water mark of nine feet above flood level. The Austell area, in particular, sustained quite a bit of damage. The Great American Scream Machine, a roller coaster at Six Flags, was mostly under water.

“It was not something that we’d really seen before,” Belanger said.

Jim and Margaret Hobbs live in Vinings, on the Chattahoochee River. They’d raised their home seven feet in the 1980s, when wet weather had caused water to fill their yard. After the 2009 flood, they raised it again.

“This was a real flood,” Jim Hobbs said. “It was scary.”

There was almost two feet of water on the first floor of the Hobbs’ home, he said. When it receded, they had mold, and the mud stuck like concrete.

“It was a mess,” Margaret Hobbs said. “It was nasty.”

2011 VIDEO: Flood damaged homes demolished

On Wednesday, almost two years after the historic floods of 2009, Cobb County began demolition of more than 30 ruined houses. The houses all were substantially damaged by the flood and they were in a 100-year floodplain.

It took more than a year to set everything back to normal. Margaret Hobbs said the flooding has had a lasting impact on her — she’s always nervous when there are heavy rains. But she said the disaster brought neighbors together.

“We say we live on the river, and sometimes in the river,” she said.

An overhead view looking South shows the flooded downtown connector just North of the International Boulevard/Ellis Street interchange. Glenn Dyke, Special
Photo: Dallon Shirley/Special

The roads

Natalie Dale, a spokesperson for the Georgia Department of Transportation, said flooding on highways was exacerbated by blocked drains. Leaf debris and other trash clogged the system, and made it harder for the water to drain off roadways.

There was significant flooding on the downtown connector, I-20 and I-575, as well as Stone Mountain freeway. All were closed. Rivers often overwhelmed bridges and roads, leading to closures across the metro area. Many residents took to boats to check on neighbors or move belongings.

Belanger said the speed with which the water overtook roads was one of the factors that led to phone alerts warning about flash flooding. There were more than 100 rescues across the metro area.

The damage

Eleven people died in the storms, including 10 in Georgia. Of those, eight died in their cars as they tried to traverse floodwaters.

The flooding also did a lot of damage. Belanger said the official estimate of $500 million is likely an undercount, since the figures don’t include the cost of debris removal.

090922 Atlanta: Flooded subdivision off Oglesby Road in Powder Springs September 22, 2009. Powder Springs Creeks is located behind the subdivision. Brant Sanderlin, bsanderlin@ajc.com
Photo: Brant Sanderlin/bsanderlin@ajc.com

More than 20,000 homes and businesses were damaged. Cobb County purchased more than 75 homes in flood hazard areas and more than 125 acres of vacant floodplain. In Sandy Springs, three homes destroyed by the 2009 flood were torn down and replaced with Windsor Meadows passive park.

The damage included the replacement of several bridges that were washed out. Seventeen counties received federal disaster declarations.

Support real journalism. Support local journalism. Subscribe to The Atlanta Journal-Constitution today. See offers.

Your subscription to the Atlanta Journal-Constitution funds in-depth reporting and investigations that keep you informed. Thank you for supporting real journalism.

X