Step 2: Get Target Peak Flow from Pre-development Conditions - Visual OTTHYMO

Click on the RouteChannel 2002 on the schematic canvas and the select Hydrograph Result in the Simulation tab. Under the Hydrograph Results (Instantce) tab, click on Show All Runs and a summary of calculated hydrograph results for each design storm will appear in the table. Write down the peak flow PKFW and those values will be used later as target peak flows for pond sizing.

Practice to view the hydrograph results of AddHyd 9.

Step 1: Open and Run Pre-development Model

Step 3: Create a Scenario for Post-development Conditions