Specifications include, but are not limited to: GATE,TRAFFIC,W/O ARM,F/BRIDGE; 1 HP, THREE PHASE, 220V MOTOR W/RIGID WISHBONE ARM; ADAPTER, DOTD MS SPEC 196-003, DATED 1/21/15, B AND B ROADWAY, NO. VW-4, OE; The warning gate shall be designed for use as a warning, traffic control and access control gate. The gate shall be explicitly designed for traffic control on movable bridges, HOV and reversible lanes and similar applications. Housing: The operating mechanism and main control components shall be contained in a weatherproof housing. The housing shall be constructed of nominal 0.188 inch carbon steel, hot dip galvanized after fabrication. Exterior surfaces shall be painted aluminum. All fasteners shall be corrosion resistant. Housing design shall allow for easy removal of the arm shaft assembly as a unit, including bearings and main arm crank, for ease of service. Arm assembly mounting design shall be fully-gasketed and shaft openings shall incorporate O-ring seals. Front and rear access doors shall be mounted on full cross bronze straps. Hinges shall be of the slip-off type and shall have stainless steel pins. There shall be two (2) door handles per door. The door shall use a vise-action to compress a neoprene bulb-type gasket to seal the door openings. A strap, capable of being padlocked, shall be provided suitable for heavy duty standard padlocks or shackleless padlocks. Mounting: The gate shall be fixed to a suitable foundation using a minimum of four (4) ¾ inch diameter anchor bolts. The gate housing base shall have four (4) 1 inch holes on a 20-1/4 inch square pattern. Mounting holes in standard base shall be slotted to allow for a 19-1/2 inch x 20- 1/4 inch mounting pattern. Arm Mounting Channels: Arm channels shall be offset design. A pair of carbon steel channels, hot dip galvanized, painted aluminum, shall be rigidly affixed to the ends of the main arm shaft. The channels and a steel cross member shall provide a sturdy mount for the arm, arm base assembly and counterweights. Counterweights: Hot dip galvanized counterweights shall be mounted to the rear end of the side arm channels. Counterweights shall be sectional and shall permit at least 10% adjustment. Arm Shaft: The main arm shaft shall be of 2 inch diameter AISI 4150 with a minimum tensile strength of 140,000 psi. The shaft shall be mounted in ball bearings which can be lubricated.