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i <br /> Type PPB: Pedestrian push button posts shall conform to Standard Plan J-7a or ro one of the following pre- � <br /> approved plans: <br /> Fabricaror Draa'ing No. <br /> Northwest NWS 2252 � <br /> Valmont 5000-3-RD <br /> Ameron 3723 <br /> Ii'ype PS: Pedestrian signal standards shal: conform to Standard Plans J-7a or to one of the following pre- <br /> approved plans: <br /> IFabricator Drawing No. <br /> I Northwcst NWS 2252 <br /> Valmont 5000-3-RD <br /> Amernn 3723 <br /> 1 Foundatiuns for various types af standards shall be as follows: <br /> Type PP[3 As noted on Standard Plan 1-7a. <br /> IType PS As noted on Standard Plan J-7a. <br /> p) Concrete Traffic Signal Standards: Traffic signal support structures sl�all consist of a single vertical anchor <br /> I base prestressed spun ooncrete pole erected on a concretc foundation H�ith pain�ed steel signal cantilever <br /> arms and luminaire arms mounted on tiie concrete pole. <br /> I Afler the signals are installed.the pole shall be plumb and cantilever arms shall ha�•e ar. upward slope away <br /> from the pole at tlie attachment point. The minimum verticel clearance to any portion of any signal or <br /> signal with sign shall be 16' 6" Prom the top of pavement. The signals and signs sh311 be rigidly attached to <br /> the artn with appropriate brackets. The pole and arms shall be reend in cross section. The diameter of lhe <br /> I arm where it connects to the pole shall not be larger than the pole diameter st t!iat height. <br /> A handhole shall be provided in the pole within 18" of the base, complete with reinforced frame aud cover <br /> plate that fastens securely in place. There shall be approved wireway fixtures installed to facilitale pulling <br /> wire from the base to an outlet at cach signal lumin�ire, cabinet, or illuminated si�n after the structure is <br /> erected. The finished structure shall be watertight. <br /> The rop of the concrete foundation shall be flush with finishcd bround linc. The pole base shall <br /> accommodate the conduit st�bbed up from the foundation. The pole base shall be drained by a ll2" <br /> drainpipe through the grout pad. Leveling nuts on the anchor bolts shall be fumished for use in plumbing <br /> the pole. <br /> Inserts shall be provided for mounting street name signs, pedestrian crossing signs, pedestrian heads, <br /> pedestrian pushbuttons, precmption beacons, and weatherhead as indicated on the signal standard details <br /> plan sheet. <br /> The vertical deflection at the free end of any cantilever arm, due to the dead load of the signals and signs <br /> only, shall not exceed 2% of the cantilever arm length. 'The horizontal deflection perpendicular to the arni <br /> at the frec end of any cantilever arm due to the design wind load on the signals and signs and sVuctures <br /> shall not exceed 5%of the cantilevcr arm Iength. <br /> �:w�...00e��nvoo_wc<�o�,ro��.e« <br /> David Evans and Associa�cs,lnc. SP-21 71h Ave.SFII(10��tSt.Signai Modifica�ion <br /> 1une1998 <br /> I <br />