Don't be confused by the echo in the output. The program (epa swmm 44h)
does echo back the opening and closing data as shown below. Program
converts type to 1 (by subtracting 20) for internal calcs. Hence the
confusing output. The gate should be closed at elevations of 705.65
feet and greater and be open for depths less than 702.15. I couldn't
run the interface (its not compatible with with epa swmm). The orfice
should should work though....

====> HEAD DEPENDENT CLOSURE GATE DATA FOR ORIFICE # 1
CONTROL JUNCTION NAME............... 20305
DEPTH AT WHICH GATE OPENS............ 702.15
DEPTH AT WHICH GATE CLOSES........... 705.65
CLOSED AREA.......................... 0.01
MINIMUM CLOSURE TIME (HOURS)......... 0.15000
DIRECTION CONTROL.................... 1
PRINT OPTION......................... 0

* ORIFICE DATA

FROM TO AREA DISCHARGE HEIGHT ABOVE
RECTANGULAR ORIFICE
JUNCTION JUNCTION TYPE (FT2) COEFFICIENT JUNCTION (FT)
DEPTH WIDTH
-------- -------- ---- ----- ----------- -------------
------ -----
20305 20301 1 1.40 0.600 0.000

Charles I. Moore, P.E.
MOORECI@CDM.COM