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ASTM C891 – Installation of Underground Precast Utility Structures IEEE C2 – National Electrical Safety Code NEMA TC 8 – Extra-Strength PVC Plastic Utilities Duct for Underground Installation NEMA TC 9 – Fittings for ABS and PVC Plastic Utilities Duct for

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Construction: Manhole will be constructed of steel reinforced concrete Manhole will be complete with manhole cover and ring, 14 ” diameter sump indentation located adjacent the manhole opening, cable pulling rings, and other appurtenances as required. Manhole will be waterproof construction Mortised joint seals or PVC pre-molded water stops shall be installed at the junction of base and walls Provided with a heavy-duty cast iron frame and cover with nominal 48 ” opening with a 22 ” smaller access cover centered in larger cover Frame and cover shall have open pick holes Label cast in lid shall read “ELECTRIC” The Contractor shall permanently weld identification number/letter labels on the manhole lids Provide cast concrete grade rings without steps as needed to elevate cover to approximately 1 ” above finish grade. Cast iron adjusting rings may be used to trim final elevation. ___________________________________________________________________________________________________________

Year: 2011
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