SA-200_Brick_and_Blockstone_Streets_and_Concrete_Margin_(2024).pdf

This document is a technical engineering drawing (DWG No. SA-200) from the City of Pittsburgh's Department of Mobility & Infrastructure, specifically detailing standards for brick and blockstone street reconstruction and reinforced cement concrete margin construction. The drawing provides a comprehensive cross-sectional and plan view of street reconstruction specifications, including detailed notes on leveling bed composition (3/4" leveling bed with 4:1 sand and Portland cement mix), subbase requirements (8" depth), roadway crown and slope specifications (2% cross slope), and construction methodologies for brick or blockstone paving.

The technical drawing includes specific technical requirements such as reinforcement specifications (using #4 bars with 3" cover), concrete margin details, and spacing guidelines (9" spacing for 24" margins). The document appears to be a standardized construction specification sheet that would be used as part of the City of Pittsburgh's infrastructure improvement and street reconstruction projects, providing precise engineering guidelines for contractors bidding on street renovation work. The drawing includes notes on material specifications, construction techniques, and structural requirements, serving as a technical reference for municipal infrastructure projects involving street and margin reconstruction.