Specifications include, but are not limited to: 1) THE LOCATIONS OF SPAN WIRE POLES, INCLUDED MOUNTED TRAFFIC DEVICES AND SIGNS ARE APPROXIMATE. FINAL LOCATIONS WILL BE DETERMINED IN THE FIELD BY THE RESIDENT, MAINEDOT OR TOWN REPRESENTATIVE. 2) ALL VEHICULAR SIGNAL HEADS SHALL BE EQUIPPED WITH LED LENSES 12 INCHES IN DIAMETER AND 5-INCH LOUVERED BACK PLATES WITH 3" WIDE YELLOW RETROREFLECTIVE STRIP AROUND THE BORDER. 3) ALL SIGNAL HEADS AND SIGNS ON SPAN WIRES SHALL BE TETHERED. 4) THE BOTTOM OF THE HOUSING OF THE SIGNAL FACES SHALL BE AT LEAST 17 FEET BUT NOT MORE THAN 19 FEET ABOVE THE PAVEMENT GRADE AT THE CENTER OF THE ROADWAY. FOR POLE MOUNTED SIGNAL HEADS, THE BOTTOM OF THE HOUSING SHALL BE MOUNTED AT LEAST 8 FEET BUT NOT MORE THAN 19 FEET ABOVE THE SIDEWALK, OR IF THERE IS NO SIDEWALK, ABOVE THE PAVEMENT GRADE AT THE HIGH POINT OF THE ROAD. 5) TWO COPIES OF AS-BUILT PLANS, WIRING DIAGRAMS, BOX PRINTS, AND EQUIPMENT MANUALS SHALL BE LEFT IN THE CONTROLLER CABINET.