October 25, 2013 Leave a comment
It has been brought to my attention that folks are seeing different values with a model being analyzed in SSA 2013 versus SSA 2014. Alas, this falls back to an error in the 2013 version that was corrected in the 2014 version. The problem it seems relates to bypass flow and gutter spread for inlets. And I quote….
The curb and gutter inlet calculator and the inlet calculations sometimes produce different results in 2013 than in 2014. In some cases, the gutter width is missing in the spread calculations.
The corrections made now follow normal expectations in the HEC-22 model. So fear not, here is a case for at least moving your hydrology calculations to 2014 if nothing else!