SA-202_-_Trench_Repaving_Details.pdf

This document is a technical drawing (DWG No. SA-202) from the City of Pittsburgh's Standards of Construction, specifically detailing street pavement trench repaving details for concrete and unreinforced pavements. The drawing provides comprehensive engineering specifications for slab replacement and trench repaving, with two primary section views: one for reinforced pavement (Type 2) and another for unreinforced pavement. The technical specifications outline precise guidelines for excavation, material requirements, and reconstruction techniques for street repairs, with specific notes about excavation methods, material handling, and slab replacement procedures.

The drawing includes detailed cross-sectional views showing existing pavement conditions, proposed repair methodologies, and specific dimensional requirements for trench repairs. An alternate detail section indicates that total slab replacement is required on all concrete streets, suggesting a comprehensive approach to street infrastructure maintenance. The technical drawing is approved and dated July 1, 1993, indicating it is a historical engineering standard for street repair work in the City of Pittsburgh, specifically related to the renovation and replacement of brick roadways in the Central Business District (CBD) as part of the city's infrastructure improvement efforts.