20 ' Galvanized Pole

2026-11-03

The poles shall be round tapered steel shafts with a base welded to the lower end of each , complete with nut covers and the type and number of bracket arms specified in the list of quantities . All poles shall be designed to withstand a 90 - mile - per - hour sustained wind velocity and a 117 - mile - perhour gust velocity , with any bracket arm ( s ) and typical roadway luminaire ( s ) in place . 5 . 1 Handhole 4 " x 6 - 1 / 2 " galvanized handhole shall be provided with a flat cover plate joined to the reinforced handhole frame with two screws . The handhole shall be located 90 degrees clockwise from the bracket arm of single arm poles , that is , at right angles to the curbside edge of the anchor base . For twin - arm poles , the handhole shall be 90 clockwise and 90 degrees counterclockwise from each bracket arm , respectively . The center of the handhole shall be approximately 14 " from the bottom of the pole . 5 . 2 Shaft The pole shaft shall be fabricated from the herein - specified manufacturer ' s standard gauge , best grade , hot rolled basic open hearth , or basic oxygen process steel . The shaft shall have only one ( 1 ) longitudinal , electrically welded joint , with the strength rated at not less than 100 percent of the yield strength of the steel and shall have no intermediate horizontal joints or welds . Only one ( 1 ) length of steel sheet shall be used , and it shall be formed into a continuously tapered shaft , having a taper of approximately 0 . 14 inches per foot . The weld shall be smooth , allowing the specified taper to be constant . The pole shall be within 1 / 4 inch in 10 feet of being straight and centered on its longitudinal axis . A grounding nut or nut holder for accommodating a 1 / 2 - inch - 13 UNC threaded bolt or stud shall be provided on the inside of the shaft immediately opposite the center of the handhole . 5 . 3 Bracket Arms 1 . Single - member bracket arms shall conform to the attached drawings and the following specifications . The pole end of the arm shall have a steel fitting welded to it , which will permit the positioning of the arm on the plate of the pole held only by gravity , while the arm is secured to the pole by two cap screws . The bracket shall provide a weather - resistant connection and smooth wiring raceway . ( See detail sheet for sketch .) The bracket arm shall attach to the pole approximately 6 inches below the top of the pole . 2 . All bracket arms shall be made to accept a luminaire with a two ( 2 ) inch slip fitter . ( Specific requirements are shown on the attached detail sheet .) 3 . All light poles that require more than one bracket arm shall have the simplex fittings located as close as possible to 6 inches down from the top of the pole . If the simplex fittings are located in such a position that it is not possible to weld them to the pole at the specified location , the attachment shall be as follows : The simplex fittings shall be located so that the bottom of the simplex fitting which is at 90 ° counterclockwise to the handhole is at the specified distance down from the top of the pole . The other simplex fitting shall be placed with the top of the fitting as close as possible to the specified distance down from the top of the pole

Wisconsin

2026-05-06