Permits & Development - Encroachment(EP)/Driveway(DW) Permits - 2007_EP-07-301 thru EP-07-400_ - EP-07-352

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vertical standard and one on the underside of the signal mast arm near the arm plate. As a minimum,the information on each identification tag shall include the name of the manufacturer,the date of manufacture;the identification number as shown on the plans,the contract number,and a unique identification code assigned by the fabricator. This number shall be traceable to a particular contract and the welds on that component,and shall be readable after the support structure is coated and installed. The lettering shall be a minimum of 7 mm high. The information may be either depressed or raised,and shall be legible. The fourth paragraph of Section 86-2.04, "Standards, Steel Pedestals and Posts," of the Standard Specifications is amended to read: • Ferrous metal parts of standards,with shaft length of 4.6 m and longer, shall conform to the details shown on the plans,the provisions in Section 55-2,"Materials,"except as otherwise noted,and the following requirements: Except as otherwise specified, standards shall be fabricated from sheet steel of weldable grade having a minimum yield strength,after fabrication,of 276 MPa. Certified test reports which verify conformance to the minimum yield strength requirements shall be submitted to the Engineer. The test reports may be the mill test reports for the as-received steel or,when the as-received steel has a lower yield strength than required, the Contractor shall provide supportive test data which provides assurance that the Contractor's method of cold forming will consistently increase the tensile properties of the steel to meet the specified minimum yield strength. The supportive test data shall include tensile properties of the steel after cold forming for specific heats and thicknesses. When a single-ply 8-mm thick pole is specified,a 2-ply pole with equivalent section modulus may be substituted. Standards may be fabricated of full-length sheets or shorter sections. Each section shall be fabricated from not more than 2 pieces of sheet steel. Where 2 pieces are used, the longitudinal welded seams shall be directly opposite one another. When the sections are butt-welded together,the longitudinal welded seams on adjacent sections shall be placed to form continuous straight seams from base to top of standard. Butt-welded circumferential joints of tubular sections requiring CJP groove welds shall be made using a metal sleeve backing ring inside each joint. The sleeve shall be 3-mm nominal thickness, or thicker, and manufactured from steel having the same chemical composition as the steel in the tubular sections to be joined. When the sections to be joined have different specified minimum yield strengths,the steel in the sleeve shall have the same chemical composition as the tubular section having the higher minimum yield strength. The width of the metal sleeve shall be consistent with the type of NDT chosen and shall be a minimum width of 25 mm. The sleeve shall be centered at the joint and be in contact with the tubular section at the point of the weld at time of fit-up. Welds shall be continuous. The weld metal at the transverse joint shall extend to the sleeve,making the sleeve an integral part of the joint. During fabrication, longitudinal seams on vertical tubular members of cantilevered support structures shall be centered on and along the side of the pole that the pole plate is located. Longitudinal seams on horizontal tubular members,including signal and luminaire arms,shall be within+/45 degrees of the bottom of the arm. The longitudinal seam welds in steel tubular sections may be made by the electric resistance welding process. Longitudinal seam welds shall have 60 percent minimum penetration,except that within 150 mm of circumferential welds, longitudinal seam welds shall be CJP groove welds. In addition, longitudinal seam welds on lighting support structures having telescopic pole segment splices shall be CJP groove welds on the female end for a length on each end equal to the designated slip fit splice length plus 150 mm. Exposed circumferential welds, except fillet and fatigue-resistant welds, shall be ground flush(-0,+2mm)with the base metal prior to galvanizing or painting. Circumferential welds and base plate-to-pole welds may be repaired only one time without written permission from the Engineer. Exposed edges of the plates that make up the base assembly shall be finished smooth and exposed comers of the plates shall be broken unless otherwise shown on the plans. Shafts shall be provided with slip-fitter shaft caps. Flatness of surfaces of 1)base plates that are to come in contact with concrete,grout,or washers and leveling nuts; 2)plates in high-strength bolted connections;3)plates in joints where cap screws are used to secure luminaire and signal arms;and 4)plates used for breakaway slip base assemblies shall conform to the requirements in ASTM A6. Standards shall be straight,with a permissive variation not to exceed 25 mm measured at the midpoint of a 9-m or 11-m standard and not to exceed 20 mm measured at the midpoint of a 5-m through 6-m standard. Variation shall not exceed 25 mm at a point 4.5 in above the base plate for Type 35 and Type 36 standards. Zinc-coated nuts used on fastener assemblies having a specified preload (obtained by specifying a prescribed tension,torque value,or degree of turn)shall be provided with a colored lubricant that is clean and dry to the touch. The color of the lubricant shall be in contrast to the zinc coating on the nut so that the presence of the lubricant is visually obvious. In addition, either the lubricant shall be insoluble in water, or fastener components shall be shipped to the job site in a sealed container. Contract No. 10-OM7104 64