Storm dumps 1.67 inches of rain on Q-C

2011-08-23T03:30:00Z 2011-08-23T23:45:10Z Storm dumps 1.67 inches of rain on Q-CKurt Allemeier The Quad-City Times
August 23, 2011 3:30 am  • 

The Quad-Cities quenched its thirst Tuesday with a soaking storm that the area sorely needed.

Not that tumbleweeds were blowing through the streets, but the recent stretch of dry weather has left lawns and crops parched. Through Monday, the Quad-City rain total for August was 1.08 inches, which is 2.17 inches below normal, according to the National Weather Service in the Quad-Cities.

The morning storm dumped 2.27 inches of rain on Davenport, 2.34 inches on Clinton, Iowa, and 2.25 inches on Hillsdale, Ill., according to trained National Weather Service storm spotters.

The official rain total reported at the Quad-City International Airport in Moline was 1.67 inches, according to the weather service.

Minor street flooding was reported and as many as 4,000 people were without power across the region at the height of the storm, according to MidAmerican Energy and Alliant Energy.

In Rock Island, streets briefly flooded from the rain, said Randy Tweet, the city's street maintenance superintendent. Street flooding also was reported in Clinton during the storm.

"The storm (sewer) system is old and gets overwhelmed, so some flooding at some intersections was reported, but there were no follow-up problems," Tweet said. "I haven't heard of any trees down or anything like that."

Locust Street near St. Ambrose University in Davenport has been prone to flooding in previous heavy rains. Not this time.

The city and university combined on a $1.85 million drainage project this year to solve the problem. Started in May, the project was recently completed except for some minor details.

The drainage system was designed to handle a 10-year storm of up to 4.4 inches of rain in a 24-hour period. Storm water now enters the storm sewer intakes on Locust Street or the adjacent St. Ambrose parking lot and goes into an underground detention system that infiltrates it into the ground, said Brian Schadt, a senior engineer for the city.

Staff from the city and St. Ambrose surveyed the street and parking lot Tuesday morning to determine the project's effect. What has been affectionately called Lake Ambrose failed to appear.

"That was a welcome sight," said Jim Hannon, director of the college's physical plant. "Usually that much rain isn't a welcome sight, but it was today.

"Typically, we would be bailing water (from buildings) and dealing with removing cars from the parking lot and watching the flood subside," he said. "It is testimony to what can happen with cooperative efforts between St. Ambrose and the city of Davenport."

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