x
Breaking News
More () »

Flooding would have happened without turbine failing, S&WB head says

"5-6 inches in two hours is an event that would overwhelm any system," Korban said. "So we have to recognize that."

NEW ORLEANS — Residents are once again waiting to learn more about why heavy rains in the area Wednesday morning led to flooding in several New Orleans neighborhoods.

It was another frustrating day, as a storm brought torrential rain. The minor soaking from Tropical Storm Cristobal is blamed for saturating the ground, which then set the stage for flooding when a Sewerage and Water Board turbine went down at a critical time.

S&WB Executive Director Ghassan Korban said while the loss of that power source (called "Turbine 4") slowed the draining process, the city was already flooded with more than 5" of rain in areas like Downtown when it failed. 

"5-6 inches in two hours is an event that would overwhelm any system," Korban said during an interview on the WWL-TV Morning Show. "So we have to recognize that."

RELATED: 'Here we go again': Street flooding another set back for businesses reopening this weekend

The S&WB's main turbine, "Tubine 5," has been down since an explosion at the utility's Carrollton Power Plant in December. Korban has warned its absence "severely hampers" the city's drainage ability going into hurricane season. 

However, he said Wednesday's rain was a stark reminder that a hurricane isn't the only source of flooding in New Orleans. 

"It's a constant reminder that this city is one of the rainiest cities, and it doesn't require a named storm to cause us flooding," Korban said.

RELATED: Lakeview residents wait hours for flooded streets to clear

"That flooding would have occurred regardless. It has to be an honest conversation about what we can do with pumping and power, versus the amount of rain and the intensity of it that could come on moments notice, like yesterday," he said.

Turbine 4 went down at 8:52 a.m. Wednesday and was out of service until nearly 11 a.m., the S&WB said. That was right after the hardest-hit spots in the city had already seen 5" of rain, which fell in about two hours. 

RELATED: 'That's not enough;' Mid-City residents, business owners want more done to stop flooding

According to WWL-TV meteorologist Dave Nussbaum, the reason for the amount of rain was the heavy moisture in the atmosphere following Tropical Storm Cristobal.

According to Nussbaum, the tropical system only dropped 2-4" of rain on Southeast Louisiana over two days. There was 3-6" of rain in two hours on Wednesday. More rain in a shorter time is what leads to the flash flooding. 

More Flood Coverage

RELATED: S&WB lost key source of power during storms - 'It was more rain than our system could handle'

RELATED: 'Uh oh;' Man drives around barricades, gets stranded at flooded intersection

RELATED: Federal grant saves Gentilly home from floodwaters, others not so lucky

RELATED: WWL-TV investigator rescues woman from car trapped in floodwaters

RELATED: Photos & videos: Flash flooding soaks New Orleans, Jefferson

► Get breaking news from your neighborhood delivered directly to you by downloading the new FREE WWL-TV News app now in the IOS App Store or Google Play. 

‎Stay up-to-date with the latest news and weather in the New Orleans area on the all-new free WWL TV app. Our app features the latest breaking news that impacts you and your family, interactive weather and radar, and live video from our newscasts and local events. LOCAL & BREAKING NEWS * Receive r...

Before You Leave, Check This Out