This dataset contains field observed river bed and bank erosion/deposition, simulated erosion/deposition data, water and sediment outflow rates, analysis of results, and Jupyter notebook code used to generate figures for a manuscript (2024WR037742) submitted to the AGU journal, Water Resources Research (https://agupubs.onlinelibrary.wiley.com/journal/19447973) on April 17, 2024. The research is part of a PhD project. The manuscript's title is " Sediment transport and flood risk: Impact of newly constructed embankments on river morphology and flood dynamics in Kathmandu, Nepal". Authors: Thapa S., Sinclair H.D., Creed M.J., Borthwick A.G.L., Watson C.S., and Muthusamy M.