Duck Creek begins in the rural areas north of Blue Grass and it empties into the Mississippi River between Bettendorf and Riverdale. At long it is the largest creek in the Quad Cities and is mainly used for storm water runoff. Duck Creek's watershed covers a total of. Of the total,, or 61%, are in Davenport;, or 31%, are in unincorporatedScott County and, or 8%, are in Bettendorf. The Duck Creek watershed flows through of private land and of public land. The creek's water has elevated levels of E. coli bacteria, nitrates and chloride. Duck Creek has many tributaries; among them are Silver Creek, Goose Creek, Pheasant Creek, Stafford Creek, Candlelight Creek, Robin Creek, Cardinal Creek and several unnamed streams. Duck Creek Parkway has of bike trail that follows the creek through Davenport, Bettendorf, and Riverdale. It starts at Haven's Acres Park in Riverdale, follows Duck Creek through Devil's Glen Park, Hollow View Park, and Veterans' Memorial Park in Bettendorf and ends at Emeis Park and Golf Course in Davenport. Duck Creek shares its name with a park and golf course on Davenport's border with Bettendorf called Duck Creek Park and Golf Course. Other parks along the creek and bike path include Middle, Eastern, Garfield, Junge, Marquette and Northwest.
1990 flood
In June 1990, Duck Creek experienced a major flash flood event. Rainfall for the month of May was above normal for the month and the rains continued into June. A thunderstorm with heavy rains passed over the Quad Cities on June 16. Because of the development around the creek, the rain water washed into the creek bed, which quickly rose. More than 8,000 homes and business were flooded. Damage estimates for that day exceeded $25 million.
2008 flood
On June 13, 2008 Duck Creek rose out of its banks. During the night of June 12 and 13 the Quad Cities experienced a rainfall record when fell in six hours. Sections of Harrison Street, Brady Street, Welcome Way and Eastern Avenue were all closed while other north-south streets remained open. Other parts of the city saw flooding as well. The Mississippi River was already significantly above flood stage at that same time, as were other rivers in the region.