ATTACHMENT D - Q58DCSRestoration_REF_AsBuilts_Final.pdf

This document is a set of as-built technical drawings for a Magnetic Silencing Facility Type III Degaussing Range located at Norfolk Naval Station in Norfolk, Virginia. The drawings were prepared by Brack & Veatch Consulting Engineers for the Chesapeake Division of the Naval Facilities Engineering Command and bear drawing number 80091 with various sheet designations (M-1 through E-20).

The facility comprises a cylindrical degaussing range structure approximately 90 feet in diameter with associated support infrastructure. Key components depicted in the drawings include: mechanical systems with ceiling and floor plans; structural framing plans for operating and bottom floor levels; data concentrator shed and support structures; sensor tube installation details for medium/deep sensor ranges and minesweeper sensor ranges; cable routing and termination details for composite cables, data highway cables, and interface cables; electrical systems including power distribution, lighting protection, grounding, and control circuits; HVAC and mechanical systems; and miscellaneous details for terminal cabinets, cable trays, conduit entry casings, and sensor identification tags. The drawings show extensive sensor tube arrays with specific coordinate locations, cable cut lengths for various sensor types (M-series, D-series, S-series, and specialized sensors), and detailed connection specifications for the data acquisition and control systems. Construction materials specified include reinforced concrete, structural steel, fiberglass, and PVC components. The facility appears designed to conduct electromagnetic degaussing operations on naval vessels, with the sensor arrays and measurement systems integral to the operation.