The Storage Area Volume panel of the Storage Area Data dialog box allows the user to define the volume data for the storage area. This article describes how to interact with the Storage Area Volume panel. Refer to this article in our knowledge base to learn more about the Storage Area Data dialog box.
Follow the steps below to define the specifications for the storage area volume:
- In the Storage Area Data dialog box, select Storage Area Volume from the Storage Area Specifications dropdown combo box.
- The corresponding panel with options for defining the storage area volume will be displayed.
The content of the Storage Area Volume panel changes based upon the type of storage area volume selected as shown below.
- Cylindrical Chamber
- Depth vs Area
- Elevation vs Area
- Rectangular Chamber
- Underground Pipe Gallery
- Underground Storage Chamber
Note: The Storage Area Volume panel will be disabled (i.e., grayed out) for the following storage area volume types:
- Underground Pipe Gallery
- Underground Storage Chamber
The following sections show the change in the Storage Area Volume panel based on the storage area volume type selected:
Cylindrical Chamber
If Cylindrical Chamber is selected as the storage area volume type, the content of the Storage Area Volume panel changes, as shown below.
The Storage Area Volume – Cylindrical Chamber Definition section allows the user to define the cylindrical chamber parameters for the selected storage area.
The following parameters are provided:
- Crest elevation
This entry field defines the crest elevation of the storage chamber.
- Invert elevation
This read-only field displays the invert elevation of the selected storage area.
- Chamber depth
This read-only field displays the storage chamber depth by subtracting the Invert elevation value from the Crest elevation value.
- Chamber diameter
This entry field defines the diameter of the storage chamber. Alternatively, the user can click the […] button to measure the diameter of the storage chamber from the Map View.
- Chamber volume
This read-only field displays the computed storage volume of the defined chamber.
Depth vs Area
If Depth vs Area is selected as the storage area volume type, the content of the Storage Area Volume panel changes, as shown below.
In the Storage Area Volume panel, the following tabs are available:
- Storage Area Data
- Storage Area Curve Plot
Storage Area Data
The Storage Area Data tab contains a table where users can enter depth and area values, while elevation and volume are read-only columns that are automatically calculated. The Storage area scale factor entry allows the user to adjust the size of the detention pond storage. When the [Apply] button is clicked, the entered scale factor is multiplied by each entry in the Area column.
The table includes the following column:
- Elevation
This read-only column displays the elevation corresponding to the entered area value.
- Depth
This column defines the depth corresponding to an area value.
- Area
This column defines the area corresponding to an elevation value.
- Volume
This read-only column displays the cumulative volume of the storage area. It is computed using the provided depth and area values.
Storage Area Curve Plot
The Storage Area Curve Plot tab displays a graphical representation of the storage area curve based on the data entered in the Storage Area Data tab.
Elevation vs Area
If Elevation vs Area is selected as the storage area volume type, the content of the Storage Area Volume panel changes, as shown below.
In the Storage Area Volume panel, the following tabs are available:
- Storage Area Data
- Storage Area Curve Plot
Storage Area Data
The Storage Area Data tab contains a table where users can enter elevation and area values, while depth and volume are read-only columns that are automatically calculated. The Storage area scale factor entry allows the user to adjust the size of the detention pond storage. When the [Apply] button is clicked, the entered scale factor is multiplied by each entry in the Area column.
The table includes the following column:
- Depth
This read-only column displays the depth corresponding to the entered area value.
- Elevation
This column defines the elevation corresponding to an area value.
- Area
This column defines the area corresponding to an elevation value.
- Volume
This read-only column displays the cumulative volume of the storage area. It is computed using the provided elevation and area values.
Storage Area Curve Plot
The Storage Area Curve Plot tab displays a graphical representation of the storage area curve based on the data entered in the Storage Area Data tab.
Rectangular Chamber
If Rectangular Chamber is selected as the storage area volume type, the content of the Storage Area Volume panel changes, as shown below.
The Storage Area Volume – Rectangular Chamber Definition section allows the user to define the rectangular chamber parameters for the selected storage area.
The following parameters are provided:
- Crest elevation
This entry field defines the crest elevation of the storage chamber.
- Invert elevation
This read-only field displays the invert elevation of the selected storage area.
- Chamber depth
This read-only field displays the storage chamber depth by subtracting the Invert elevation value from the Crest elevation value.
- Chamber length
This entry field defines the horizontal length of the storage chamber. Alternatively, the user can click the […] button to measure the length of the storage chamber from the Map View.
- Chamber width
This entry field defines the horizontal width of the storage chamber. Alternatively, the user can click the […] button to measure the width of the storage chamber from the Map View.
- Chamber volume
This read-only field displays the computed storage volume of the defined chamber.