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STREE'fS AND RELATED WORK <br />The da►sity of rock maoaial shall be a minimum of 160 pounds pa cubic foot. <br />rock shall be as follows: <br />YS2L.t� <br />$�i <br />Ono-man rock <br />'ltvo-man rock <br />Thre�-man tocic <br />Four-man rocr <br />,��;�. <br />.I .� <br />160 to 4001b <br />500 to 8001b <br />gp0 W 1,2001b <br />1,300 to 1,6001b <br />„Il�llul l� <br />� 1��1 • � <br />The size qtegoria for <br />12 inct�s 1.75 cf <br />13 inches 4 cf <br />16 inches 6.6 cf <br />18 inches 9 cf <br />Rocks less thal► 1::ubic foot in volume or weighing less than <br />160 pounds shall not be used. <br />shall be constructed atoP dx 1'°�ioa�'. The cap shall be a minimum 2 inches thick. <br />A amait concrete aP �p b� �loring agent at an amount not co attxed 1'fi <br />The class of concrete shall be aomma�cial. . Where a pedesuiaz► or <br />pounds per cubic yazd s� � added to the mi�c �� a�ed to a m n um of 12 mches for a <br />omamental han�. �il is required, the rockery caP <br />section 6 inches :~•'c side of rrch pipe stave. Dummy jo�nts shalt be oonstructed at 12 foot murvals' <br />The depth of th�. �; .my joint shall be ono-tturd the depth of the cap. <br />RooloaY cxps �i11 ��9uircd on all rockaies higha than 4 fat in the public right-of-way and opdonal <br />on private pmP�Y• <br />3-16 METAL HAND RAILINGS <br />g.�g,� DESCRIPTION <br />This sxtion applies to providing and building metal hand cailings that mat the requirements of the Plans, <br />these Specific�tions and the city a�8��• <br />3-16.2 MATERIALS <br />��s � meet the requirements of the following: <br />Ornamental Haodrail � <br />pmamencal handrail shall be constructed in accordancx wi� � inches by 1 h�inches�by 1/8 <br />5pxifications. Horizonhdl rails and vatical suppocc posts <br />inch tubular stal conformin� to ASTM A120• Balustas s�1� � 1�2 inch b 1/2 mch and the <br />hotizontal b� shall be a_maaimum 8 fa on cente.yr and balusters a maaimum�4 �ches clear space. The <br />supportpos� <br />cxnoer oP the bottom cail sha11 be a maxiatrian walldng s�urfux.1Provlde sliP )'oints a�t spuway e <br />railinB shaq be 42 inches above the pcd . <br />acpanuon joints and at 24 fat on center maumum. <br />p�destrian Handrail (Galvaniud Steel and Aluminum) <br />Gal�aniud Steei and Aluminum pedestrian ha�►drail shall be constructed in aa:ordaz►ce with Standard <br />Plan Nos. 325 and 325A and these Spxificatio �d b� � s� � 314 inc dSiame�oerrtS�chedu1e�40� <br />1-112 inch diameter Schedule 40 Standud P P� <br />gqndard pipe Vertical support posu shall be on 8 foot cencen and balusters on 4 inches clears�e <br />Finished haght of the tailing shall be 42 inches above the pedesaian walking surface. Provide slip <br />joints at srairway expar►sion joints and at 24 fat on cencer maximum. <br />STANDARDS 3-75 <br />