• InfoDrainage

Conducting a quick storage estimate

Conduct a quick storage estimate to approximate the size and volume of a pond.


Step-by-step:

Once the basic shape of a pond has been defined, the next task is to conduct a quick storage estimate to obtain an approximate value for the volume. This is then refined by simulating the network with a series of design storms.

  1. Open the model containing the pond.
  2. In the ribbon, Results tab, Reports panel, click Inflow Summary.
    An image of the InfoDrainage interface, with the Plan View zoomed in on the pond and the Inflow Summary tool called out in the ribbon.
  3. The Inflow Summary dialog box appears. Scroll to the bottom of the table.
  4. Note the Total area to be analyzed; in this case, it is 2.521 hectares.
  5. Close the dialog.
    The Inflow Summary dialog, showing the full table of inflow objects, with the view scrolled down all the way to the bottom and the total area value highlighted.
  6. In the Plan View, double-click the Pond icon.
  7. From the Pond dialog box, open the Sizing Calculator.
  8. Expand the Method drop-down and set it to Quick Storage Estimate.
  9. Expand the Design up to drop-down to Freeboard.
  10. Click the calculator icon.
    The Pond dialog box is open in the background, and the Sizing Calculator is open in the foreground, with the Method and Design up to values entered and the calculator icon for the Quick Storage Estimator called out.
  1. In the Quick Storage Estimate dialog box, set the Input Type drop-down to User Input.
  2. For the Area, enter 2.52
  3. For the Volumetric Runoff Coefficient, enter 0.750.
  4. Enter a Discharge Rate of 16.1.
  5. Expand the drop-down below the Safety Factor value and set it to Quick.
  6. Enable the SRP Wizard FSR option.
  7. Click Calculate to view the results.
    The Quick Storage Estimate dialog box open, with all the desired values input from steps 11 – 16 and the Calculate icon called out.
  1. Review the Quick Storage Estimate.
  • The top of the Quick Storage Estimate dialog box, with the Results showing, and the approximate storage of between 705 – 997 meters cubed highlighted.
  1. Click OK to close the Quick Storage Estimate.
  2. Click OK to close the Sizing Calculator.
  3. Click OK again to close the Pond dialog.