Raise/Lower feature When do you use it?

[DPAJR]

Hi All,

Thanks in advance. My question is:

When is it appropriate to use the Raise/Lower feature? If you have computed Tc it seems like the slope has already been accounted for. Is it limited in use say just for specifying inverts? Would you use it on different segments of a stream that flows down a steep hill?

Thanks,
Dave Adkins

 

[psmart]

The raise/lower feature is often applied to a cloned node for use at another point in the drainage system.

Note: You can use Ctrl-Drag or Copy/Paste to make a clone of any node.


Peter Smart
HydroCAD Software

http://www.hydrocad.net

 

[DPAJR]

Hi Peter,

Thanks for the quick answer.

Does this mean that all subcatchments or other nodes in Hydrocad should have an assigned elevation?

If so would it be the lowest elevation, the average or the highest?

Thanks,
Dave Adkins

 

[psmart]

Ponds and reaches will usually contain elevation information, such as storage elevations and outlet inverts. The raise/lower features will increase or decrease all of these values by the specified amount, maintaining the relationship between the elevations.

For example: You build a check-dam structure which is modeled as a pond. It includes a storage volume and outlet devices. After making a clone of the node, you can use raise/lower to create a matching structure at another point in the model.

Subcatchments and links usually don't contain absolute elevations. In this case nothing is changed.


Peter Smart
HydroCAD Software

http://www.hydrocad.net

 

[DPAJR]

Hi Peter,

Thanks again. That clears it up.

Dave Adkins