• Pondpack Emergency Spillway Modeling

    I'm trying to model a composite outlet structure that has an orifice and a riser with a grate that acts as a relief for larger than designed storm events. I also want to include an emergency spillway that is offset from the structure itself and is simply…
  • How does PondPack calculate the rating curve for an irregular weir (specifically a trapezoidal weir)?

    I have tried to replicate the calculations using the standard weir equation [Q = CLH^(3/2)], but have since realized that PondPack must be applying an additional factor to the calculation that is based on the head, because the factor varies as the head…