Regarding to the main reinforcement of the base slab at top and the cover slab at bottom, as per Details And Detailing Of Concrete Reinforcement ( ACI 315-99 ) all main reinforcement cannot stop or splice in the Maximum Bending Moment Zone ( positive moment at mid span ) some of them  should be extend to the supports theoretically  but practically all these rebar should extend into supports to give more stiffness and rigidity. In the drawing some of reinforcement has the mentioned issue which needs to rearrange. 