SI-100_Street_Lighting_-_Junction_Box_Details.pdf

This document is a technical drawing (DWG No. SI-100) from the City of Pittsburgh's Standards of Construction, specifically detailing street lighting junction box designs for infrastructure projects. The drawing provides comprehensive technical specifications for two types of junction boxes: a stainless steel junction box (JB-SI) and a concrete junction box (JB-1), which appear to be critical components for street lighting installation. The detailed schematics include plan views, section views, and specific dimensional measurements for conduit placement, reinforcement requirements, and mounting configurations.

The technical drawing includes several key engineering specifications, such as using City of Pittsburgh-class A concrete, specifying stainless steel materials, and providing precise installation guidelines. General notes indicate requirements for reinforcing bars, conduit placement, and construction conformance to local building standards. The drawings are part of the broader roadway renovation project in the Central Business District (CBD), which involves brick roadway renovation and replacement. The technical specifications are designed to ensure standardized, high-quality infrastructure components that meet municipal engineering standards for street lighting infrastructure.