Overview
- Heavy thunderstorms produced several inches of rain in short bursts on July 11, triggering National Weather Service flash‑flood warnings and overwhelming surface drainage in Mid‑City, Lakeview, City Park, Hollygrove and Uptown.
- The Sewerage & Water Board confirmed multiple pump problems during the downpour, including a human error that left all three pumps at the Canal Boulevard DPS 7 station offline for about 45 minutes and a Hollygrove Pritchard station that ran with only one of two pumps.
- Street flooding closed underpasses and lanes across the city, including the Canal, Carrollton and Broad Street underpasses and both directions of Carrollton Avenue at the I‑10 overpass, stranding cars and slowing emergency responses.
- S&WB says crews have resolved the immediate faults, will add staff at DPS 7 and has opened an internal investigation, noting stations are designed to handle about 1.0 inch of rain in the first hour and 0.5 inches each following hour but were exceeded by the storm.
- The incident follows scrutiny of S&WB resilience after June’s power/frequency outage and raises near‑term risks for residents because forecasts keep Alert/Impact Days in effect with more tropical moisture and heavy downpours expected this week.