DT-SS-U-1028_Pre-cast_Concrete_Pad_for_LBC_Cabinet.pdf

These engineering standard drawings from the City of Palo Alto, California's Utilities Electric Engineering department detail pre-cast concrete pad specifications for LBC (likely "Local Boundary Cabinet") installations. The three-sheet document provides detailed technical drawings for three different pad configurations, each with specific dimensions, rebar placement, and installation requirements. Each pad is designed for a different sized utility box or vault, with notes specifying critical installation details such as sand base preparation, pad construction standards, and vault positioning.

The drawings (DT-SS-C-1028) include specific technical specifications like #4 rebar placement, 6" compacted sand base, 1" concrete pour, and precise measurements for different pad sizes. The notes consistently emphasize centering pad windows over boxes, installing precast vaults according to city standard drawing DT-SS-J-1002, and using specific dimensions for different utility infrastructure applications. The third sheet specifically references an Alhambra A1252 cover and frame with a 30" access point, indicating these are likely for underground utility infrastructure installations in the Palo Alto municipal utility system.