Hydraflow Express in Civil 3D is a valuable tool for hydrology design and analysis, helping engineers:<br /><br />1. Calculate runoff: Determine stormwater runoff rates and volumes.<br />2. Design stormwater systems: Size pipes, inlets, and other infrastructure.<br />3. Analyze hydraulic performance: Evaluate system capacity and potential flooding.<br /><br />Hydraflow Express simplifies hydrology design and analysis, enabling engineers to:<br /><br />1. Optimize stormwater system design<br />2. Ensure compliance with regulations<br />3. Minimize flood risks