September 2013 Flood Peak Flow Estimates

See also: Restoration Topics
Report detailing the results of fieldwork and analyses performed to estimate peak flow from 15 mountain streams impacted by the September 2013 Colorado Front Range Floods. These stream reaches ranged from Jamestown in the South to catchments draining the High Park Fire area in the Poudre Canyon in the North, though are only a sample of the mountain streams impacted by the flooding.

The highest peak flows were measured in the North Fork of the Big Thompson River upstream of Drake (18,400 cubic feet per second, cfs), the Little Thompson River at Pinewood Springs (14,600 cfs), West Creek upstream of Glen Haven (11,000 cfs) and Buckhorn Creek upstream of Masonville (11,000 cfs). The highest flow yields (peak flow normalized by drainage area) were measured in Fish Creek upstream of Lake Estes (442 cfs/mi^2), West Creek upstream of Glen Haven (477 cfs/mi^2), Little James Creek upstream of Jamestown (579 cfs/mi^2), Fox Creek upstream of Glen Haven (486 cfs/mi^2), and Skin Gulch upstream of Stove Prairie Road (720 cfs/mi^2). Overall, the peak flows measured in these 15 reaches correspond to return intervals ranging from a 25-year flood event to approximately 5 times the 100-year flood.

Download the Complete Report:

Colorado Front Range Flood of 2013: Peak Flow Estimates (.pdf)

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