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CITY OF SANTA ANA <br /> SPECIFICATIONS <br /> PROJECT NO.: 25-6030 <br /> TRAFFIC SIGNAL INSTALLATION AT SEGERSTROM AVENUE AND ROSEWOOD <br /> AVENUE <br /> All signs installed in parkways, sidewalks or pedestrian areas shall have a minimum of <br /> 7 feet of vertical clearance from the bottom of the lowest sign to the surrounding <br /> surface. Street name signs shall have a minimum 9 feet of vertical clearance. All signs <br /> installed in raised median areas shall have a minimum vertical clearance of 4 feet from <br /> the existing surface unless shown otherwise on the plans. <br /> When two signs are installed on one post, the signs shall be installed in the proper <br /> standard vertical positions unless shown otherwise on the plans. Regulatory,Warning <br /> and Guide signs shall be posted above parking restriction signs. The Engineer shall <br /> determine the proper order for multiple signs. Sign panels shall not be overlapped. <br /> If signposts are not long enough to provide standard clearance for all signs, a longer <br /> post shall be furnished and installed. Signs shall be installed at right angles to <br /> approaching traffic unless shown otherwise on the plans. In no case shall signs be <br /> installed on wood utility poles or on wood street light poles. <br /> B. MATERIAL AND HARDWARE <br /> 1. Roadside signs shall be fabricated using 0.080-inch thick aluminum sheeting <br /> and traffic signal mastarm mounted signs shall be fabricated using 0.10-inch <br /> thick aluminum sheeting. <br /> 2. ASTM D4956-09 Type XI (3M Diamond Grade DG3 Series 4000 or <br /> equivalent)reflective sheeting shall be used for the followings: <br /> a. All Regulatory signs except parking restrictions signs. <br /> b. All Warning signs. <br /> 3. For school related signs, reflective sheeting shall be 3M Diamond Grade <br /> (Fluorescent) Series 4083 DG3 or equivalent. <br /> 4. For all other signs, including parking restrictions and Street Sweeping signs, <br /> the reflective sheeting shall be ASTM D4956-09 Type III, IV (3M High <br /> Intensity Prismatic series 3930 or equivalent). <br /> 5. Temporary or construction signs shall be ASTM D4956-09 Type III, IV (3M <br /> High Intensity Prismatic series 3930 or equivalent). <br /> 6. All signs,except for temporary or construction signs, shall have graffiti coating <br /> or film(such as 3M 1160 Overlay)as recommended by the manufacturer of the <br /> reflective material. Neither the color nor the reflective intensity of the finished <br /> sign panel shall be significantly diminished by the use of graffiti remover when <br /> used in a manner approved by Caltrans and the sheeting manufacturer. <br /> 7. All street name signs shall be manufactured and installed per City of Santa Ana <br /> Standard Plan No 1503. <br /> 46 <br />