25RA010_Plans.pdf

These are engineering design plans for the Lower Granite Lock and Dam Turbine Intake Gate Hydraulic System Upgrade project located on the Snake River in Washington State. The comprehensive set of technical drawings, prepared by the US Army Corps of Engineers Walla Walla District, details the hydraulic system upgrade for the powerhouse, including site maps, site plans, schematic diagrams, wiring layouts, and installation specifications. The plans cover multiple technical domains including mechanical, electrical, structural, and control systems, with detailed documentation for removal, installation, and interconnection of hydraulic gate control components across various system units and panels.

The project involves upgrading the existing hydraulic systems controlling the turbine intake gates, with drawings dated April 2025 and a solicitation number W912EF25RA010. The technical documentation includes extensive details on equipment configurations, wiring diagrams, terminal block connections, network interfaces, and control console layouts. Key system components include hydraulic power units, control stations, gate control mechanisms, electrical panels, and associated instrumentation and control infrastructure designed to improve the operational reliability and performance of the Lower Granite Dam's powerhouse hydraulic systems.