E-202 Am-0001.pdf
PDF 198 KB Posted
- Attached to
- Oahe Switchyard Disconnect Switch Replacement
- Solicitation number
- W9128F23R0003
About this file
This document provides details for a federal contract solicitation for Oahe Switchyard Disconnect Switch Replacement. The U.S. Army Corps of Engineers, Omaha District is seeking to replace disconnect switches, suspension insulators, and bus sections at the Oahe Dam powerhouse switchyard in Pierre, South Dakota. Work includes replacing 40 manual switches, 13 motor-operated disconnect switches, and 15 grounding switches along with associated insulators and 1-inch and 3-inch aluminum bus sections. The project also includes an inspection of main and auxiliary buses with an allowance for 60 inches of weld repair. The contractor must commence work upon award and complete all work within 730 calendar days of the notice to proceed. The estimated construction cost ranges between $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 closes on July 6, 2023 and is unrestricted and open to both large and small businesses.
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EXISTING 230kV AUX BUSEXISTING 230kV MAIN BUS
EL. 1455.50
LINE BAY BUS
3 1/2" AL TUBE
(TYP.)
BUS
TUBE EX.
3 1/2" AL
AAC
1272kcmilDS 2483
GCB 2482
1272kcmil AAC
GS 2480
WITH
DS 2481
SEE NOTE 2
EXPANSION FITTING
EXISTING DEAD END STRUCTURE
1272kcmil AAC
SUSPENSION INSULATORS
1272kcmil AACAAC 1272kcmil
DS 2485
3 1/2" AL TUBE
GCB 2486
DS 2487
AL TUBE
3 1/2"
GENERAL NOTES
2. NEW ALUMINUM EXPANSION TERMINALS, TUBE TO FLAT TYPE.
1. BOLD/RED LINES AND TEXT INDICATE NEW WORK (REMOVAL AND INSTALLATION).
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.
12'-0"12'-0"11'-6"24'-0"28'-0"17'-6"
210'-0"
LINE BAY BUS
3 1/2" AL TUBE
(TYP.)
BUS
TUBE EX.
3 1/2" AL
MOD 2987
SEE NOTE 2
EXPANSION FITTING
EXISTING DEAD END STRUCTURE
1272kcmil AAC
1272kcmil AAC
AAC
1272kcmil
GS 2980
WITH
DS 2981
3 1/2" AL TUBE
GCB 2982
DS 2983
AL TUBE
3 1/2"
CCPD (TYP. OF 3)
12'-0" 12'-0" 15'-6" 26'-0" 22'-0" 17'-6"
EXISTING 230kV AUX BUS EXISTING 230kV MAIN BUS
/8
/1
EL. 1455.50
230kV POWERHOUSE LINE 3 BAY ELEVATION
SCALE: NTS
230kV TYPICAL LINE BAY ELEVATION
SCALE: NTS
/4
/1
17'-6"22'-0"26'-0"15'-6"12'-0"12'-0" 12'-0"12'-0"15'-6"26'-0"22'-0"17'-6"
210' -0"
SUSPENSION INSULATORS
LINE #3
TO POWERHOUSE
LINE 3
TO FORT THOMPSON
1272kcmil AAC
MOTOR CONTROL
MOD 2987
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