E-201 Am-0001.pdf

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Attached to
Oahe Switchyard Disconnect Switch Replacement
Solicitation number
W9128F23R0003
Issued by

About this file

This document provides details on a federal contract solicitation for Oahe Switchyard Disconnect Switch Replacement. The U.S. Army Corps of Engineers, Omaha District is seeking to replace high voltage disconnect switches, suspension insulators, and bus sections at the Oahe Dam powerhouse switchyard in Pierre, South Dakota. Offerors are invited to bid on replacing 40 manual switches, 13 motorized disconnect switches, and 15 grounding switches along with associated insulators and bus sections. The estimated construction cost ranges from $5-10 million. The primary NAICS code is 237130 for Power and Communication Line and Related Structures Construction with a small business size standard of $45 million. The solicitation will close on July 6, 2023 with a projected completion date of 730 days from notice to proceed. Questions shall be submitted through ProjNet and site visits are scheduled for June 14, 2023.

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MOTORIZED).

SWITCHES, GROUNDING SWITCHES, AND SWITCH OPERATORS (MANUAL AND

REFER TO SHEET E-101 AND LEGEND TO IDENTIFY LOCATIONS OF DISCONNECT

3. OPERATORS, RODS, AND GROUNDING SWITCHES NOT SHOWN FOR CLARITY.

2. NEW ALUMINUM EXPANSION TERMINALS, 3 1/2" TUBE TO FLAT TYPE.

NEW EQUIPMENT INSTALLED.

1. ITEMS IN BOLD/RED ARE TO HAVE THE EXISTING EQUIPMENT REMOVED AND HAVE

GENERAL NOTES

DEAD END STRUCTURE

1272kcmil AAC

LINE BAY BUS

3 1/2" AL TUBE

MOD 1067

SEE NOTE 2

EXPANSION FITTING

3 1/2" AL TUBE

GS 1060

WITH

DS 1061

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/2

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CCPD (TYP. OF 3)

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EXPANSION FITTING

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DS 1365

1272kcmil AAC 1272kcmil AAC

SUSPENSION INSULATORS

GCB 1566

DS 1367 3 1/2" AL TUBE

/2

115kV TIE BAY 1 ELEVATION

SCALE: NTS

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TO AT1 DEAD-END STRUCTURE

EL. 1455.25

/1

DEAD END STRUCTURE

LINE BAY BUS

3 1/2" AL TUBE

1272kcmil AACDS 1363

EL. 1455.25

/1

115kV TYPICAL LINE BAY ELEVATION

SCALE: NTS

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SUSPENSION INSULATORS

1272kcmil AAC

CONTROL

MOTOR

MOD 1067

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