32 and 34 in a preferred embodiment the contiguous segments 30 32 and 34 are separately inflatable through valve stems 30a 32a and 34a inflation can be performed by using a standard bicycle tire pump for example each seal segment has an integrally formed gripping member 36 formed medially on each segment so as to grip the corresponding doorway structure inflatable seals suitable for this purpose are commercially available from the seal master corporation of kent ohio when flooding conditions are eminent the barrier 10 is positioned in the doorway with the seals uninflated a handle 36 can be formed in the barrier wall as a recess so as to aid lifting and placement of the barrier wall once positioned at a lower portion of the doorway with the bottom of the barrier 10 resting on the bottom of the door frame the two side segments of the seal are inflated so that a water tight barrier is created and held in place then the bottom seal segment is inflated the barrier wall is retained in its position by the enlargement of the seals due to their inflated condition in order to install the device according to the present invention the device is placed in a doorway and the two side segments 30 and 34 are inflated through their separate inflation valves 30a.