The Fox River network, which includes Apple Creek, contributes a significant amount of total phosphorus (P), including both sediment-bound P (sed-P) and dissolved reactive P (DRP, also known as orthophosphate) and suspended sediment to Green Bay/Lake Michigan. Most headwater streams of the Fox River are predominantly agricultural in land use, interspersed with rural communities and the industrialized Fox River Valley corridor. Implementation of best management practices on agricultural operations has worked to limit the amount of material that is carried to the stream from cropland. However, several studies have shown streambank erosion to be another source of suspended sediment in these streams. These files contain the descriptions of 30 rapid geomorphic assessments conducted during the summer of 2018 as part of the Apple Creek sediment-source study. Included in the file are reach lengths, drainage area at the downstream end of the reach, an extrapolation to all stream segments upstream of the USGS gage, and sediment/phosphorus budget estimates for the basin.