Elmhurst Quarry diverts flood waters from city

April 23, 2013

Elmhurst Quarry Map
A map of the quarry shows the facility’s key functions. (Photo: The County of DuPage)

Following an April 17 flood in Elmhurst, Illinois, the city’s Elmhurst Quarry began taking water to help control flood waters at 6:30 p.m. the day flooding began, Elmhurst Patch reported.

The 8,300 acre-foot Elmhurst Quarry Flood Control Facility uses the old Elmhurst Chicago Stone Quarry to divert flood water from the city. The quarry uses a 400-foot long tunnel to  carry the water to quarry when Salt Creek water elevation near flood stage.

The largest of the quarry’s two lobes, which hold the water, is 200 feet deep.

According to another Elmhurst Patch report, the quarry can hold 2.7 billion gallons of water.

As of April 19, the quarry was half-full, taking 1.35 million gallons of water, and still fully operational.

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