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Delafield staff report on historic storm impacts: lift‑station bypasses, trees down and weeks to restore lake level
Summary
City Administrator Heffner told the council that the early‑September storm produced historically high rainfall locally, inundating two lift stations that required bypass pumping (one for 2.5 days, another for 8.5 days), causing significant tree damage from saturated soils and wind, and requiring about 3½ weeks to lower lake levels to normal.
City Administrator Heffner updated the Common Council on Sept. 15 about the city’s response to an early‑September storm that officials described as a historic rainfall event in the region. The city reported two lift stations were overwhelmed and required bypass pumping, extensive tree damage from saturated soils and wind shear, and a multi‑week effort to restore normal lake levels.
What happened: Heffner told the council the storm registered near a 100‑year rainfall in parts of the area and higher intensities further east. Two of the city’s 26 sewer lift stations were overwhelmed: the West Shore Drive lift station required bypass…
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