Attachment 3 - W911WN26QA564 - Reference Drawings.pdf

This document is Attachment 3 containing reference drawings for the Hildebrand Lock and Dam electrical system and associated infrastructure. The drawings are technical schematics and diagrams produced by the U.S. Army Corps of Engineers, dated between February 1952 and September 1964.

The reference drawings depict comprehensive electrical system designs for the lock and dam facility, including detailed schematics for: the electrical system with Hildebrand Lock and Dam designation (dated February 1952); gate operation sequences and control diagrams for normal and emergency operations; typical connection diagrams for gate and emergency operation; motor control and brake assembly details; switchboard configurations for one-line and three-line systems; lighting system wiring diagrams including fixture schedules and panel layouts; basic power and lighting distribution; grounding diagrams for the main switchboard in the operation building; water gate wiring diagrams; and single-line diagrams for Point Marion Lock and Dam. The drawings also include conduct and cable schedules, control panel equipment schedules, position of gate operational sequences, and various technical details for limit switches, brake assemblies, and electrical component arrangements. These reference drawings serve as the baseline design documentation for the electrical infrastructure supporting lock and dam operations, gate control systems, and facility lighting and power distribution.