With more rain, already soaked soil could contribute to flooding

Friday rain - Chris Nelson/KXAN

AUSTIN (KXAN) — More forecasted rain could increase the chances of flood problems this Halloween weekend. Up to 10 inches of rain fell in some areas of northwest Austin last weekend, but even significantly less rainfall this weekend could yield issues.

“Now we are fully saturated,” said Kevin Shunk, the city of Austin’s floodplain administrator. “Five inches this weekend are different from five inches last weekend.”

Central Texas soil sits on top of mostly sediment and rock and Shrunk said ground saturated in rain can act much like concrete or asphalt.

Wet ground can also cause problems in neighborhoods like Tarrytown where tall oaks tower above.

“The trees from the ground get saturated and the canopies get heavy,” said Tarrytown resident Brad Sprague. Soft dirt combined with heavy tops and high winds have led to neighborhood trees falling in recent rain events.

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