19880901_PCI-41 EF Relief Outlet Sewer Section II - Complete Set.pdf

This document is a set of contract drawings for the Evergreen-Farmington Relief Outlet Sewer Section II project, prepared by the City of Detroit Water and Sewerage Department's Pollution Control Program in September 1988. The drawings, identified under Contract No. PCI-41 with Project No. C-263487-01, detail the technical specifications, plan and profile views, utility locations, and construction details for a sewer infrastructure project. The drawings include comprehensive site plans showing the sewer route across multiple streets and intersections, including Vassar Drive, Hubbell Avenue, Gilchrist Avenue, Hessel Avenue, Eight Mile Road, and Northland Park Court, with precise measurements, elevation profiles, and engineering specifications for tunnel sections, access shafts, manholes, and related infrastructure components.

The technical drawings provide extensive engineering details including typical tunnel sections, construction joint and water stop details, reinforced concrete bulkhead specifications, access shaft configurations, and safety bar details. The project appears to be a complex underground sewer infrastructure improvement involving hand-mined tunneling techniques, precise engineering specifications for concrete and steel structures, and detailed considerations for utility interactions. The drawings are meticulously drafted, showing cross-sections, plan views, and technical specifications at a scale of 1"=50' for plans and 1"=10' for profiles, indicating a high-precision engineering approach to the municipal infrastructure project.