mount block 650 panel and wheel lock release rod for primary door or half panel door 660 panel mounted hinge upon which wheel brackets are affixed to allow wheels to articulate 670 wheel mounting bracket 680 wheel toggle locking bar 690 primary door frame is mounted to secondary door 692 inside wall of frame 690 700 foam rubber panel seal 710 secondary damper panel 720 panel centering bushings center panel in secondary door frame 730 secondary door panel and frame stiffeners 740 panel lock rod for secondary door 750 panel release hex for secondary door 760 secondary door gussets 770 half panel door damper system 780 half panel door assembly 790 half panel frame 792 inside wall of frame 800 half panel panel seal plate 810 panel release hex for half panel door 820 half panel damper panel 830 concrete channel for storm water flow 840 frame for the door assembly is recessed into concrete channel 850 recess in concrete for frame 860 adjustable storm water passage for inflow outflow door system 860 a underflow passage for half panel 860 b overflow passage for half panel 870 concrete channel damper system the invention is a continuation in part of u s patent application ser no 12 823 727 filed jun 25 2010 which is a continuation in part of u s patent application ser no 12 533 806 filed jul 31 2009 both of which are incorporated by reference fig1 is a top perspective view of prior art type concrete storm water handling vault 10 that can have four vault walls 40 with storm water 20 inflow coming in through an inlet opening 60 into the vault 10 and eventually flow out 30 through an outlet pipe 70 the external housing of the.