What we reported

On Sept. 27, the National Oceanic and Atmospheric Administration released a study called Atlas 14 that re-evaluates flood risk based on rainfall data collected through 2017. Atlas 14 shows that heavy rainfall in Austin is expected to occur more frequently than previously thought, said Kevin Shunk, the engineering division manager of the watershed protection department. The new knowledge has implications on flood risk, development, remodeling, pipes, ponds and flood insurance.

The latest

In response to the data, the city of Austin’s Watershed Protection Department proposed code changes related to regulation and development within local flood plains.

“Outside of CodeNEXT, this is the largest proposed code change in the city’s history,” Shunk said. “It will be the first major amendment to flood plain regulations in 35 years.”

Throughout the spring, public hearings will be conducted by the zoning and platting commission, environmental commission, planning commission and Austin City Council. Council will consider adopting the proposed regulations as early as summer, Shunk said.