City of Mission Hills, Kansas
2015
The City of Mission Hills has requested that the reach of Brush Creek from 63rd Street to the Kansas City Country Club Low-Water Crossing be hydraulically modeled. The intent of the project is to identify hydraulic and stream stability issues along the reach and to develop recommendations for improvement. In addition, the project will result in a hydraulic calibrated hydraulic model that can be used by other engineers. The construction of the physical model of Brush Creek and surrounding properties was completed through a series of steps. Computer programs were used to generate and print elevation profile graphs to model scale. The profile graphs were then used to trace and cut the cross sections out of plywood. Once the sections were located on the table, the terrain was constructed out of chicken wire and plaster. The entire model was sealed with various water tight products and painted. In order to run the necessary tests an enclosed pumping system was incorporated. WRS constructed three head boxes. Two at the upstream ends of Brush Creek and the KCCC tributary and one at the downstream end of the model. Storage tanks were also located at the downstream end. Weir plates placed at the tributary delivery head box and the downstream head box were used to provide a means of model flow rate measurement. The pitot tube was used to determine the depth of flow and the velocity head at various points along the channel. Model runs concluded that there are two locations along Brush Creek where a hydraulic jump occurs. Recommendations for future improvements will be made.