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Flood in Mercer, New Jersey

Flood September 19, 2004 – September 20, 2004 · Mercer, New Jersey

$2.4M
Damage as recorded

The wider storm

The remnants of Hurricane Ivan interacting with a slowly moving cold front caused widespread very heavy in the upper and middle sections of the Delaware River Valley. While the rain was not heavy in Mercer County, the runoff from the heavy rain upstream produced the worst flooding along the Delaware River since 1955. Townships and roadways along the Delaware River were hardest hit. Damage was estimated in the millions. The Delaware River at Washington's Crossing was above its 20 foot flood stage from 416 p.m. EDT through 828 p.m. EDT on the 19th. It crested at 20.12 feet at 5 p.m. EDT. Farther downstream, the Delaware River at Trenton was above its 20 foot flood stage from 148 a.m. EDT on the 19th through 1245 p.m. EDT on the 20th. It crested at 23.39 feet at 731 p.m. EDT on the 19th. Flood stage is also 20 feet.

Source: NOAA Storm Events Database, event 5426517. Narratives are written by the National Weather Service forecast office that issued the report.

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