One-dimensional models to date have performed well in predicting sediment loads. However, such models are highly sensitive to boundary conditions, such as assumed limits to incision from bedrock outcrops, input data, and bathymetric averaging. Thus, it is important to consider the strengths and limitations of models that are commonly used for such predictions and have the models suitably applied. This study evaluated the suitability of a numerical model, NETSTARS, in a mountainous creek. Kao-Shan Creek in Taiwan, where four check dams were removed during 1999-2001. We employed NETSTARS by first calibrating the parameters through the sensitivity analysis process, and then simulating the channel evolution. The results found in this study can be a good reference of future application.