Tuesday, July 30, 2013

Weirs in InfoSWMM and SWMM5

Weirs in InfoSWMM and SWMM5

Subject: Weirs in InfoSWMM
 Figure 1 shows the relationship between the weir input data and the upstream and  downstream nodes.
·         Height,
·         Crest and
·         Node Invert Elevation
 There are four types of weirs and if the weir becomes submerged downstream the Villemonte weir submergence correction is applied (Figure 2).  You can have flow reversal across the weir unless you use a Flap Gate for the weir (Figure 3). 
Figure 1:  Definition of Weir Terms
Figure 2: Villemonte Weir Submergence Correction
Figure 3:  Flow Reversal in a Weir

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InfoSWMM Version Numbers and the version of Arc Map they use and which EPA SWMM5 Engine is used for Each InfoSWMM Version

 InfoSWMM Version Numbers  InfoSWMM Version 14.7  Update 3 for Arc Map 10 to 10.8 and Windows 7/8/8.1/10 - EPA SWMM 5.1.014   4/12/2020   ...