Big Creek Watershed Study

Posey County, Indiana

This project involved the study of a specific part of the Big Creek Watershed between SR 66 and SR 69 to determine the probable cause of the recent increase in flooding in this area of the watershed and propose solutions to the flooding problem. Hydraulic and hydrologic analyses of the approximately six-mile-long study area were performed using available stream gauge and rainfall data, GIS data, and topographic data. A HEC-RAS model was created from the available data to determine approximate flood elevations. Projects upstream of SR 66 were also investigated to determine their effects on the stream flow downstream in the study area.

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