On Friday, September 5, 2025, Slidell Mayor Bill Borchert was joined by Council Members Leslie Denham (District A), David Dunham (District B), Nick DiSanti (District D) and Kenny Tamborella (District E) to break ground on the Riecke Retention Pond, a new stormwater management project designed to protect the Pontchartrain Drive corridor from future flooding.
Located just off Pontchartrain Drive at the site of the old Tammany Mall, the one acre retention pond will offer approximately 1.4 million gallons of stormwater storage. Hartman Engineering, Inc. is leading the design phase, which includes a comprehensive hydraulic analysis of the upper Pontchartrain Drive drainage corridor. Construction should begin this fall, and the project should be completed by Spring 2026.
“Investing in stormwater management infrastructure is central to our administration’s pledge to safeguard Slidell’s neighborhoods and businesses,” said Mayor Borchert. “The Riecke Retention Pond will significantly reduce localized flooding for our residents and businesses in the Pontchartrain Drive area.”
This initiative builds on the City’s ongoing efforts to upgrade drainage systems in the City of Slidell. Upon completion, the Riecke Retention Pond will join a network of retention ponds and pump stations that work in tandem to help manage heavy rainfall events across Slidell.
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