Att. A - DWR Unit 4 concept sketches ALTS 1-2 - 20251002.pdf

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Attached to
Dworshak Unit 4
Solicitation number
W912EF25SS40
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About this file

The document contains architectural elevation drawings showing multiple design alternatives for a facility modification. The drawings are labeled as Alternative 1A and 1B, and Alternative 2A and 2B, each depicting variations of adding Unit 4 to an existing structure. Key design elements include:

The alternatives focus on different approaches to integrating Unit 4, with specific modifications such as:

  • Adding fill at Skeleton Bays 4, 5, and 6
  • Adding a bridge at Bays 4 and 5
  • Adding an assembly bay
  • Installing new retaining walls
  • Creating new pentstock extensions
  • Incorporating new transformer vaults and walkways

The elevation views are detailed at different heights (1005, 988, 973, and 956), showing the proposed structural changes across Erection Bay, Bay 1, Bay 4, Assembly Bay, and Skeleton Bay 6. Green-shaded sections highlight the proposed new construction and modifications.

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U4 DWA_PH_U4 ALT 2a

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