Best way to model a control weir in SWMM

[wutzman]

Hi all,

I am trying to model the following within SWMM.  

We have an existin 8" sanitary sewer and would like to add a control weir (vertical sliding gate) to the upstream face of a manhole.  The idea is to open the sliding gate to a controled depth basically to regulate downstream flow?

The only way I can see to closely model this is to make the downstream pipe the "equivelant area" to the required flow area? 

Thoughts?

Bill

[Matt.Anderson]

In Autodesk Storm and Sanitary, you can add either a Weir or Orifice to represent your Gate.

I might assume that an orifice is more appropriate is the gate is sliding up to control the flow.

<Your question was about SWMM, and Autodesk Storm and Sanitary is build with SWMM...>