Tainter Valve Top Seal.pdf

This is a technical engineering drawing for a top seal for a gate in a McNary Lock & Dam system. The document is labeled "CONTRACT 4" and bears approval stamps indicating it is an approved drawing dated 12-05-99, with the drawing number 203D1008.

The drawing depicts a detailed mechanical assembly showing a 4-ply nylon duck reinforcement component and drill holes at assembly using a top seal keeper. The schematic illustrates horizontal dimensions of approximately 7'-10" in width and 5¾" on the right side, with angled components marked at 45 degrees on both sides. The design includes specific measurements and cross-sectional details showing the seal configuration. A "SCAMMED" notation appears at the bottom, indicating this is a scanned document. The drawing contains technical specifications and assembly instructions, with notations referencing materials and installation procedures typical of hydraulic gate seal systems used in dam operations. The document is classified as a 4-REQD (four required) specification from United Engineering Company.