Att. C - Dworshak civil structural existing reference drawings.pdf

This document is a comprehensive set of architectural and engineering drawings for the Dworshak Dam and Reservoir project located on the North Fork Clearwater River near Orofino, Idaho. The drawings are prepared by the U.S. Army Corps of Engineers, Walla Walla District.

The technical drawings include location and index maps showing the dam's vicinity; detailed cross-sections and reinforcement details for the concrete monolith structure; penstock drainage plans and profiles; general arrangement drawings showing homogeneous earth dikes and monolith galleries; transverse sections through the powerhouse and spillway structures; generator bay layouts and skeleton bay floor plans at various elevations; longitudinal sections through the fish collection channel and upstream structures; draft tube outlines for bays three through six; and detailed turbine foundation plans with anchor and penetration details. The drawings encompass structural elements including reinforced concrete penstocks with stiffener details, expansion joint specifications, bulkhead provisions for downstream penstock ends, gland and retainer ring details, and comprehensive elevation views of multiple piers and foundation components. Additional sheets depict plan and section views of the powerhouse at elevation 1005 and 988 feet, oil storage and penstock room layouts, drainage galleries, and typical structural details for concrete construction throughout the facility. All drawings are marked "As Constructed" and bear the designation "HBDO ELECTRIC DESIGN BRANCH, NTR" with appropriate drawing numbers, revision information, and signature blocks indicating project completion and authorization by the U.S. Army Corps of Engineers.