DWA Unit 4 Project Milestones.pdf

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Walla Walla District Dworshak Unit 4
Solicitation number
W912EF26RSN15
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This is a project milestones timeline chart for a U.S. Army Corps of Engineers federal infrastructure project spanning fiscal years 2025 through 2035. The project encompasses multiple construction and renovation efforts organized into distinct work packages, each with defined acquisition strategies and implementation schedules.

The project consists of seven primary effort categories: (1) PH Roof and PH Life Safety, both utilizing Design-Bid-Build (DBB) contracting; (2) Vol. 2/3/6 utilizing Design-Build (DB) contracting, which includes PH Extension, Turbine-generator, and Balance of Plant components; (3) GSU Transformer Supply procured through MADOC; (4) Tailrace HSS Rehabilitation using DBB; (5) Intake HSS using DBB; and (6) Hydraulics Upgrades using DBB. Each work package follows a standardized progression of government design and BCOES (Board of Consultants on Engineering Services) activities, followed by solicitation and award phases, with contractor (KTR) involvement in mobilization, construction, fabrication, and installation. The timeline identifies critical dependencies, including requirements that certain components must be installed before Unit 4 Commissioning (U4 Cx). The GSU Transformer installation and commissioning extends into FY35, representing the project's final major milestone. The chart uses color coding to distinguish between planning/scoping, in-house design, KTR design/fabrication, DWA project work, and construction/installation activities.

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Other files

File Type Posted
Att. B - Dworshak Photos - Existing site & historical construction.pdf PDF
Att. A - DWR Unit 4 concept sketches ALTS 1-3 - 20250818.pdf PDF
Att. C - Dworshak civil structural existing reference drawings.pdf PDF
DWA Unit 4 Project Overview - Concept Sketch.pdf PDF
Attachment A.pdf PDF

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PROJECT MILESTONES

Planning/Scoping

In-house Design

Effort / Contract

Framing

PH Roof (DBB)

PH Life Safety (DBB)

Vol. 2/3/6 (DB)

- PH Extension

- Turbine-generator

- Balance of plant

GSU Xfmr Supply3 (MADOC)

Tailrace HSS Rehab4 (DBB)

Intake HSS5 (DBB)

Hydraulics Upgrades (DBB)

FY25 FY26 FY27 FY28 FY29 FY30 FY31 FY32 FY33

Acq. Strategy Char

Pre-Design DDR

GOV

Design +

BCOES

Solicit + Award

Install Dependency

S T

A R

T D

E S

IG

N

GOV Design +

BCOES

KTR

Mob. + Const.

Solicit Award

KT

R

Pre-con

GOV

Design +

BCOES

KTR Mobilize + Construct

Solicit

Award

KTR

Prec on

CWG

KTR Design/Fab

KTR

Construct/Install

GOV Design +

BCOES

Solicit Ph 1

KTR Design

PH Extension Mobilize & Construction

T-G Fabrication & Delivery T-G Install & Cx

FY34 FY35

GSU

Install & Cx

GOV

Design +

BCOES

Solicit /Award

KTR

Paint

DWA Project Work

Strip Seals

Install Seals

I n s t a l l

GOV Design +

BCOES

Solicit / Award

Must install before U4 Cx

I n s t a l l

GOV Design +

BCOES

Solicit / Award

KTR Mobilize + Construct

KTR

Precon

Must install before U4 Cx

KTR Design + Manufacture + Deliver

Solicit Ph 2 + Award

KTR Fabricate + Deliver

File details come from the government source that posted it. Updated .