Manual for computing bed load transport using BAGS (Bedload Assessment for Gravel-bed Streams) Software

This manual provides background information and instructions on the use of a spreadsheet-based program for Bedload Assessment in Gravel-bed Streams (BAGS).The program implements six bed load transport equations developed specifically for gravel-bed rivers.Transport capacities are calculated on the basis of field measurements of channel geometry, reach-average slope, and bed material grain size.Calculations are carried out using Visual Basic for Applications (VBA), and the output is stored on individual spreadsheets.In addition to stepby-step instructions in software operation, the manual provides guidance in the interpretation of results.