rods 100 are swingably attached to the gate arm 82 they move into a collapsed stored position when the gate arm is moved upwardly as best illustrated in fig2 an additional important feature of the present invention 10 is the fact that the balance cylinder 16 and the gate 14 are interconnected by a flexible chain 104 whereby movement of one also effects movement of the other as to the manner of usage and operation of the present invention initial reference is made to fig1 of the drawings wherein the gate 14 is shown in a down or closed position in a typical situation the gate 14 might be blocking a roadway while the flexible cord 50 could extend beside or across the roadway so as to facilitate a grasping thereof by an individual within a vehicle when the flexible member 50 is pulled the actuating lever 48 operates to pivotally move the balance cylinder 16 forwardly towards the gate 14 as shown in fig8 a bottom section of the balance cylinder 16 is filled with the aforementioned supply of water and this water rushes forwardly towards the end of the balance cylinder on which the actuation lever 48 is attached this forward movement of the water effects a.