11831 AIRPORT RD WHOLE SITE FILE 2020-01-21

The maximum weight of each sign shall be determined by the total width and height of the sign's outside finished dimensions. Individual sign weights,including their outside finished edges, shall be calculated as NOT TO EXCEED (NTE): 4'x 18": NTE 38 lbs 4'x 24": NTE 45 lbs 8'x 30": NTE 90 lbs 6'x 18": NTE 50 lbs 6'x 24": NTE 63 lbs 8.5'x 30": NTE 95 lbs 8'x 18": NTE 65 lbs 8'x 24": NTE 79 lbs 9'x 30": NTE 100 lbs The long edges of the sign shall be made from a single section of 6000 series aluminum extrusion. The ends caps shall be made from a single section of aluminum and shall be affixed to the frame with stainless steel screws. The power supply shall be mounted internally in one of the end caps. The non-electrical end cap shall be removable to enable replacing panels and components. The sign shall have a front panel that is UV,weather, abrasion and impact resistant. The front panel shall be replaceable so that maintaining agencies have the option to supply their own sheeting and 3M 1170 series Electrocut film for the sign faces. Exterior Finish All exterior surfaces of the sign assembly shall be powder-coat painted in accordance with Military Standard MIL-C-24712. Finish will meet the requirements of ASTM D3359,ASTM D3363, and ASTM D552. The sign enclosure shall have a weatherproof design that ensures water does not reach internal components, and shall be able to do so in its design,without the use of silicone. No silicone will be used in the weather resistant seal of the sign. Mounting System (Rigid Back Brace Mounting) The Sign must be supplied with rigid back brace mounting brackets on two positions on the back of the sign. The rigid back brace mounting brackets will be powder-coat painted to an exact match of the sign extrusions, and shall be in accordance with Military Standard MIL-C-24712. Finish will meet the requirements of ASTM D3359,ASTM D3363, and ASTM D552. The rigid back brace mounting brackets used to affix the sign to the mast arm pole shall not extend more than 3/16"inch above the top horizontal surface, and the opposite end of that same bracket shall not extend more then 3/16"inch below the bottom horizontal surface of the sign, as viewed from the front. Approved brackets, such as Pelco AS-3004 or AS-3009 shall be used for this installation. Environmental Specifications The sign shall be designed and constructed to withstand 241 Km/h (150 mph) wind loads in conformance with the requirements of the AASHTO publication, "Standard Specifications for Structural Supports of Highway Signs,Luminaries and Traffic Signals," 4th Edition 2001. The sign and power supply should be able to withstand and operate at temperature extremes of-22 deg F to +140 deg F. 36 Swift II BRT Boeing to Canyon Park Station—Traffic Signal 90%Special Provisions—12/1/2016