ITB 2026002 Vol 2~1.pdf
PDF 32 MB Posted
- Attached to
- Columbia Heights Substation
- Solicitation number
- S-R33123-00017897
- Issued by
- Wasco County, Oregon
About this file
This document is an Invitation to Bid (ITB #2026002) issued by Northern Wasco County People's Utility District for the construction of the Columbia Heights Substation in The Dalles, Oregon. The project scope encompasses complete retirement and replacement of existing substation facilities through a two-phase construction approach, with Phase I improvements occurring in an expanded yard to the southeast while existing facilities remain operational. The work includes installation of two 12.47kV metalclad switchgear buildings with 2000A capacity, two 115-12.47/7.2kV transformers rated at 24/32/40 MVA, control buildings, circuit breakers, bus support structures, grounding systems, conduit infrastructure, and related electrical and civil work. The project requires coordination of staging sites, with two potential options identified: an open sloped yard across from the substation or a yard behind 1910 Golden Way. Phase I construction must be completed and tested before load transfer occurs and Phase II begins, with each phase capable of serving load and operating independently. The existing Columbia Heights Substation will be completely demolished and cleared following Phase I energization, with all equipment, structures, foundations, and infrastructure removed and replaced with a masonry wall panel perimeter system.
The project documentation includes comprehensive drawing lists and general notes covering electrical, structural, civil, and fabrication specifications across multiple sheets. Contractor responsibilities include furnishing and installing conduit systems, verifying transformer and circuit breaker locations, coordinating staging areas with the owner, and reviewing steel structure drawings for assembly and equipment mounting compatibility. The contractor must stub and cap conduit outside the substation fence for future communication provider connections and PUD feeder cable extensions. Ground grid cables extending into Phase II areas are to be coiled above grade during Phase I for future interconnection. The bid package specifies use of first-class, new materials free from defects and approved by UL where standards exist, with detailed conduit material lists including approximately 3,000 linear feet of 2" PVC Schedule 40 conduit, 4,400 linear feet of 6" PVC conduit, and various fittings and vaults. CAD files are available upon contractor request, and specific construction recommendations are detailed in technical specifications and design drawings throughout the document package.
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Other files
| File | Type | Posted |
|---|---|---|
| Volume 1 Cover Page R1.pdf | ||
| Bid Amendment 001.pdf | ||
| ITB 2026002 Vol 1~1.pdf |
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Text version
ITB #2026002
for the construction of
COLUMBIA HEIGHTS SUBSTATION
NORTHERN WASCO COUNTY
PEOPLE’S UTILITY DISTRICT
consisting of:
VOLUME 2
PART 6: SUBSTATION DRAWINGS
Copyright: Stoddard Power Systems, LLC, 2026 ITB #2026002 Project No.: 26NWCPUD001
6.1 COLUMBIA HEIGHTS SUBSTATION – Issued For Bid – 2026
0 ISSUED FOR BID SPS 8/20/26
TITLE:
SHT.
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
25NWC001 - G001 G001
3/15/2025 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
TITLE PAGE, LOCATION & VICINITY MAP
JS
ACC
JDW
MLS
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NORTHERN WASCO COUNTY PUD COLUMBIA HEIGHTS SUBSTATION
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THE DALLES, OREGON
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PORTLAND
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EUGENE
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BEND
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ROSEBURG
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LA GRANDE
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CALIFORNIA
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OREGON
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WASHINGTON
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OREGON
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OREGON
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ASHLAND
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THE DALLES
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DUFUR
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LOCATION MAP
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PROJECT SITE
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EXISTING SITE
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1. SEE SHEET G002 FOR DRAWING LISTS AND PROJECT GENERAL NOTES. SEE SHEET G002 FOR DRAWING LISTS AND PROJECT GENERAL NOTES. 2. THE EXISTING COLUMBIA HEIGHTS SUBSTATION FACILITIES WILL BE COMPLETELY RETIRED AND THE EXISTING COLUMBIA HEIGHTS SUBSTATION FACILITIES WILL BE COMPLETELY RETIRED AND REPLACED BY NEW EQUIPMENT INSTALLED IN TWO PHASES. 3. EACH CONSTRUCTION PHASE WILL CONTAIN EQUIPMENT FACILITIES THAT CAN SERVE LOAD AND EACH CONSTRUCTION PHASE WILL CONTAIN EQUIPMENT FACILITIES THAT CAN SERVE LOAD AND OPERATE INDEPENDENTLY. 4. THE EXISTING COLUMBIA HEIGHTS SUBSTATION FACILITIES WILL REMAIN IN SERVICE WHILE THE THE EXISTING COLUMBIA HEIGHTS SUBSTATION FACILITIES WILL REMAIN IN SERVICE WHILE THE PHASE I CONSTRUCTION TAKES PLACE. 5. CONTRACTOR SHALL COORDINATE THE STAGING SITE WITH THE PUD. TWO POTENTIAL SITES ARE CONTRACTOR SHALL COORDINATE THE STAGING SITE WITH THE PUD. TWO POTENTIAL SITES ARE AVAILABLE FOR CONSIDERATION: A. OPEN AND SLIGHTLY SLOPED YARD ACROSS THE ROAD FROM THE SUBSTATION YARD. B. OPEN YARD BEHIND 1910 GOLDEN WAY, THE DALLES.
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NOTES::
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STAGING AREA OPTIONS
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70823PE
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OREGON
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EXPIRES 6/30/2028
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PHASE I
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PHASE II
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OPTION A
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PROJECT SITE
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PROJECT SITE
TITLE:
SHT.
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
25NWC001-G002 G002
3/15/2025 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
DRAWING LIST AND NOTES
JS
ACC
JDW
MLS
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ELECTRICAL
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PHASE I ELEVATION A1
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SUBSTATION SECTION AND MATERIAL LIST AND NOTES
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SWITCHGEAR BUILDING #1 INTERIOR PLAN AND MATERIAL LIST
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SWITCHGEAR BUILDING #2 INTERIOR PLAN AND MATERIAL LIST
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SWITCHGEAR BUILDING #2 INTERIOR ELEVATIONS
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SWITCHGEAR BUILDING #2 AC AND DC PANEL
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SWITCHGEAR BUILDING #2 EXTERIOR LIGHTING AND EXHAUST FAN CONTROL
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SWITCHGEAR BUILDING #2 THREE LINE DIAGRAM SHEET 1
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SWITCHGEAR BUILDING #2 THREE LINE DIAGRAM SHEET 2
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%%UDRAWING LIST:
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%%UNOTES:
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1. THE EXISTING COLUMBIA HEIGHTS SUBSTATION FACILITIES WILL BE COMPLETELY RETIRED AND REPLACED THE EXISTING COLUMBIA HEIGHTS SUBSTATION FACILITIES WILL BE COMPLETELY RETIRED AND REPLACED WITH NEW EQUIPMENT INSTALLED IN TWO PHASES. 2. THE PHASE I IMPROVEMENTS WILL TAKE PLACE IN THE EXPANDED YARD TO THE SOUTHEAST, WHILE THE THE PHASE I IMPROVEMENTS WILL TAKE PLACE IN THE EXPANDED YARD TO THE SOUTHEAST, WHILE THE EXISTING FACILITIES REMAIN IN SERVICE. 3. THE PHASE I SITE DEVELOPMENT AND PERIMETER MASONRY WALL PANEL SYSTEM WILL CONNECT WITH THE THE PHASE I SITE DEVELOPMENT AND PERIMETER MASONRY WALL PANEL SYSTEM WILL CONNECT WITH THE EXISTING YARD THROUGH FENCE ISOLATION SECTIONS, TO PREVENT THE TRANSFER OF FAULT CURRENT. 4. EACH CONSTRUCTION PHASE WILL CONTAIN EQUIPMENT FACILITIES THAT CAN SERVE LOAD AND OPERATE EACH CONSTRUCTION PHASE WILL CONTAIN EQUIPMENT FACILITIES THAT CAN SERVE LOAD AND OPERATE INDEPENDENTLY. 5. THE EXISTING COLUMBIA HEIGHTS SUBSTATION FACILITIES WILL REMAIN IN SERVICE WHILE THE PHASE I THE EXISTING COLUMBIA HEIGHTS SUBSTATION FACILITIES WILL REMAIN IN SERVICE WHILE THE PHASE I CONSTRUCTION TAKES PLACE. 6. DURING PHASE I THE GROUND GRID CABLES THAT ARE TO EXTEND INTO THE NORTHWEST PHASE II YARD DURING PHASE I THE GROUND GRID CABLES THAT ARE TO EXTEND INTO THE NORTHWEST PHASE II YARD WILL BE COILED ABOVE GRADE FOR FUTURE INTERCONNECTION. 7. ONCE THE PHASE I CONSTRUCTION IS COMPLETE AND TESTED IT WILL BE ENERGIZED AND HAVE LOAD ONCE THE PHASE I CONSTRUCTION IS COMPLETE AND TESTED IT WILL BE ENERGIZED AND HAVE LOAD TRANSFERRED TO IT FROM THE EXISTING FACILITIES WHICH WILL THEN BE RETIRED. 8. ALL EXISTING COLUMBIA HEIGHTS SUBSTATION EQUIPMENT AND FACILITIES ARE TO BE RETIRED. THE SITE ALL EXISTING COLUMBIA HEIGHTS SUBSTATION EQUIPMENT AND FACILITIES ARE TO BE RETIRED. THE SITE CLEARED OF ALL EQUIPMENT, STRUCTURES, FOUNDATIONS AND INFRASTRUCTURE. THE EXISTING PERIMETER FENCING IS TO BE REMOVED AND REPLACED WITH A MASONRY WALL PANEL SYSTEM AS NOTED ON THE DRAWINGS. 9. DURING CONSTRUCTION OF PHASE II, THE PHASE I AND PHASE II PERIMETER WALL PANELS ARE TO BE DURING CONSTRUCTION OF PHASE II, THE PHASE I AND PHASE II PERIMETER WALL PANELS ARE TO BE INTERCONNECTED WITH AN ISOLATED (UNGROUNDED) MASONRY WALL PANEL SECTION, TO PREVENT THE TRANSFER OF FAULT CURRENT. 10. WHEN THE PHASE II PERIMETER MASONRY WALL PANELS ARE IN PLACE THE EXISTING INTERIOR CHAIN LINK WHEN THE PHASE II PERIMETER MASONRY WALL PANELS ARE IN PLACE THE EXISTING INTERIOR CHAIN LINK FENCE SEPARATING THE TWO CONSTRUCTION AREAS CAN BE REMOVED AND REPLACED WITH TEMPORARY ORANGE PLASTIC FENCING TO PREVENT ACCESS INTO THE ENERGIZED PHASE I AREA. 11. ONCE THE PHASE II CONSTRUCTION IS COMPLETE, TESTED AND READY TO ENERGIZE THE GROUND GRID ONCE THE PHASE II CONSTRUCTION IS COMPLETE, TESTED AND READY TO ENERGIZE THE GROUND GRID CONDUCTORS BETWEEN PHASES ARE TO BE INTERCONNECTED, INCLUDING THE PERIMETER MASONRY WALL PANEL GROUNDS. 12. SPECIFIC CONSTRUCTION RECOMMENDATIONS ARE PRESENTED IN THE TECHNICAL SPECIFICATIONS AND SPECIFIC CONSTRUCTION RECOMMENDATIONS ARE PRESENTED IN THE TECHNICAL SPECIFICATIONS AND APPEAR ON THE DESIGN DRAWINGS. 13. THE OWNER HAS PROVIDED STEEL STRUCTURE DRAWINGS INTENDED TO BE READY FOR FABRICATION. THE THE OWNER HAS PROVIDED STEEL STRUCTURE DRAWINGS INTENDED TO BE READY FOR FABRICATION. THE CONTRACTOR IS RESPONSIBLE TO REVIEW AND MODIFY THE STRUCTURE DETAILS TO ENSURE THE STRUCTURES ARE SATISFACTORY FOR ERECTION ASSEMBLY AND EQUIPMENT MOUNTING. 14. DRAWING CAD FILES CAN BE MADE AVAILABLE TO THE CONTRACTOR UPON REQUEST.DRAWING CAD FILES CAN BE MADE AVAILABLE TO THE CONTRACTOR UPON REQUEST.
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GENERAL
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TITLE PAGE, LOCATION AND VICINITY MAPS
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DRAWING LIST AND NOTES
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ONE LINE DIAGRAM SHEET 1 OF 2
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ONE LINE DIAGRAM SHEET 2 OF 2
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STRUCTURAL
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115 KV DEADEND STRUCTURE CONCEPT
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HV AND LV BUS SUPPORT STRUCTURE CONCEPT
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CIVIL
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CIVIL SITE PLAN
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E. CONDITIONS AND DEMOLITION PLAN
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GRADING PLAN
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DRIVEWAY DETAILS
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FOUNDATION SITE PLAN
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TRANSFORMER FND T1 PLAN AND SECTION VIEWS
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SECURITY CAMERA POLE FOUNDATION ELEVATION AND SECTION VIEWS
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CONTROL BUILDING FOUNDATION PLAN AND SECTION VIEWS
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DEADEND SUBSTRUCTURE FND DE-1 PLAN AND SECTION VIEWS
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CIRCUIT BREAKER FND B1 PLAN AND SECTION VIEWS
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HIGH VOLTAGE BUS SUPPORTS FND HS-1 PLAN AND SECTION VIEWS
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LOW VOLTAGE BUS SUPPORT LS13 PLAN AND SECTION VIEWS
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CONDUIT DETAILS AND MATERIAL LIST
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CONDUIT SECTION DETAILS
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FEEDER 12.47KV CIRCUIT CONDUIT DETAILS
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CONDUIT AND CIRCUIT SCHEDULE
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GROUNDING PLAN
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GROUNDING DETAILS SHEET 1
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GROUNDING MATERIAL LIST AND NOTES
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TO SOURCE 1 W. 2 ST ND ST SUBSTATION
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TO SOURCE 2 SEUFERT SUBSTATION
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CHS
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SIMPLIFIED PUD TRANSMISSION SERVICE TO COLUMBIA HEIGHTS SUBSTATION
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FABRICATION
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STEEL NOTES AND INSPECTION TABLE
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HV AND LV SUBSTRUCTURE FND DE-1 ELEVATION AND DETAIL VIEWS
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ELECTRICAL
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SWITCHGEAR BUILDING #1 ELECTRICAL SCHEMATICS 115KV BREAKER 52H1 SHEET 1
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PUD
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LEIDOS & TRANSMISSION LINE CONTRACTOR
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SPS & SUBSTATION CONTRACTOR
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OREGON
EXPIRES 6/30/2028
TITLE:
SHT.
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
25NWC001-G003 G003
5/9/2025 25NWC001
COLUMBIA HEIGHTS SUBSTATION
ONE LINE DIAGRAM
SHEET 1 OF 2
JS
ACC
JDW
MLS
0 ISSUED FOR BID SPS 8/20/26
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90KV
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SP
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CHS-T1 115-12.47/7.2 KV 24/32/40 MVA 55C ONAN/ONAF/ONAF Z=X%
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TMR1
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BPA 115KV LINE FROM DRY HOLLOW
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CHS-52H1 115KV, 2000A, 40KAIC
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PT-1B 7.2KV-120V (60:1)
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SMD-20 1A
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STATION SERVICE XFMR 1 7200-120/240V, 25KVA
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UTILITY METER 1
AutoCAD SHX Text
MTS-SS1 125A, 240/120V 3 POLE, SE
AutoCAD SHX Text
PNL-SS1 125A, 120/240V
AutoCAD SHX Text MAIN BKR 1 2000A,15.5kV 25KAIC
AutoCAD SHX Text 87Z1
AutoCAD SHX Text 1200A N.O.
AutoCAD SHX Text
9KV
AutoCAD SHX Text
AutoCAD SHX Text %%U50
AutoCAD SHX Text
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text 1200A N.O.
AutoCAD SHX Text
9KV
AutoCAD SHX Text
AutoCAD SHX Text %%U50
AutoCAD SHX Text
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text 1200A N.O.
AutoCAD SHX Text
9KV
AutoCAD SHX Text
AutoCAD SHX Text %%U50
AutoCAD SHX Text
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text 1200A N.O.
AutoCAD SHX Text
9KV
AutoCAD SHX Text
AutoCAD SHX Text %%U50
AutoCAD SHX Text
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text 1200A N.O.
AutoCAD SHX Text
9KV
AutoCAD SHX Text
AutoCAD SHX Text %%U50
AutoCAD SHX Text
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text 86T1
AutoCAD SHX Text T
AutoCAD SHX Text
FROM 86T1
AutoCAD SHX Text T
AutoCAD SHX Text
TO 52H1
AutoCAD SHX Text
AutoCAD SHX Text 86B1
AutoCAD SHX Text T
AutoCAD SHX Text
2000:5 MR (1600:5)
AutoCAD SHX Text
1200:5 MR (600:5)
AutoCAD SHX Text
1200:5 MR (600:5)
AutoCAD SHX Text
1200:5 MR (600:5)
AutoCAD SHX Text
1200:5 MR (600:5)
AutoCAD SHX Text 2000:5
AutoCAD SHX Text 2000:5
AutoCAD SHX Text 2000:5
AutoCAD SHX Text 2000:5
AutoCAD SHX Text 2000:5
AutoCAD SHX Text FEEDER BKR 31 2000A,15.5kV 25KAIC
AutoCAD SHX Text FEEDER BKR 32 2000A,15.5kV 25KAIC
AutoCAD SHX Text FEEDER BKR 33 2000A,15.5kV 25KAIC
AutoCAD SHX Text FEEDER BKR 34 2000A,15.5kV 25KAIC
AutoCAD SHX Text
2000:5 MR (1600:5)
AutoCAD SHX Text 2000:5
AutoCAD SHX Text C
AutoCAD SHX Text T
AutoCAD SHX Text T
AutoCAD SHX Text
FROM 86T1
AutoCAD SHX Text
FROM 87Z1
AutoCAD SHX Text
2000A NON-SEG
AutoCAD SHX Text
FEEDER #31
AutoCAD SHX Text
AutoCAD SHX Text 11F31 751
AutoCAD SHX Text 11F32 751
AutoCAD SHX Text 11F33 751
AutoCAD SHX Text 11F34 751
AutoCAD SHX Text 87T1P 787
AutoCAD SHX Text 87T1B 787
AutoCAD SHX Text 87Z1 787Z
AutoCAD SHX Text (3)
AutoCAD SHX Text
PT-1A 7.2KV-120V (60:1)
AutoCAD SHX Text
SMD-20 1A
AutoCAD SHX Text W1
AutoCAD SHX Text
AutoCAD SHX Text W1
AutoCAD SHX Text
AutoCAD SHX Text W2
AutoCAD SHX Text
AutoCAD SHX Text W2
AutoCAD SHX Text
AutoCAD SHX Text W2
AutoCAD SHX Text 50N
AutoCAD SHX Text W2
AutoCAD SHX Text 51N
AutoCAD SHX Text 87T
AutoCAD SHX Text
AutoCAD SHX Text
2000:5 MR (1600:5)
AutoCAD SHX Text T
AutoCAD SHX Text T
AutoCAD SHX Text
ALM
AutoCAD SHX Text T
AutoCAD SHX Text T
AutoCAD SHX Text T
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text
TO 52T1 (TIE BKR 1)
AutoCAD SHX Text T
AutoCAD SHX Text
FROM 86B1
AutoCAD SHX Text
CHS-DS1 1200A N.C.
AutoCAD SHX Text
CHS-TDS2 2000A N.0.
AutoCAD SHX Text
PQM
AutoCAD SHX Text V
AutoCAD SHX Text
VS
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text
CHS-TDS1 2000A N.C.
AutoCAD SHX Text
SMD-20 5A
AutoCAD SHX Text
90KV
AutoCAD SHX Text
AutoCAD SHX Text
BPA 115KV LINE TO SEUFERT SUBSTATION
AutoCAD SHX Text
CHS-DS2 1200A N.C.
AutoCAD SHX Text
90KV
AutoCAD SHX Text
115KV TO TRANSFORMER 2 SHEET G004
AutoCAD SHX Text
CHS-TDS3 2000A N.C.
AutoCAD SHX Text TIE BKR 1 2000A,15.5kV 25KAIC
AutoCAD SHX Text
TO SWITCHGEAR #2 ON SHEET G004
AutoCAD SHX Text 11T1 751
AutoCAD SHX Text
12.47KV 2000A METALCLAD SWITCHGEAR & CONTROL HOUSE #1
AutoCAD SHX Text (3)
AutoCAD SHX Text (3)
AutoCAD SHX Text (3)
AutoCAD SHX Text (3)
AutoCAD SHX Text
2000/5 MR (300/5) C400
AutoCAD SHX Text
2000/5 MR C400
AutoCAD SHX Text
600/5 MR (300/5) C400
AutoCAD SHX Text
600/5 MR C400
AutoCAD SHX Text
2000/5 MR C400
AutoCAD SHX Text
2000/5 MR (1600/5) C400
AutoCAD SHX Text
2000/5 MR (800/5)
AutoCAD SHX Text
HOOK STICK OPERATED DISCONNECT SWITCH
AutoCAD SHX Text
UNDERGROUND CABLE TERMINATION
AutoCAD SHX Text
VOLTAGE TRANSFORMER
AutoCAD SHX Text
POWER FUSE
AutoCAD SHX Text
SURGE ARRESTER
AutoCAD SHX Text
CURRENT TRANSFORMER
AutoCAD SHX Text
GROUND
AutoCAD SHX Text
TRANSFORMER, NUMBER OF PHASES,
AutoCAD SHX Text
CONFIGURATION, RATINGS, AND
AutoCAD SHX Text
IMPEDANCE AS INDICATED OR SPECIFIED
AutoCAD SHX Text
%%UELECTRICAL DIAGRAM LEGEND
AutoCAD SHX Text
BUSHING CURRENT TRAMSFORMER
AutoCAD SHX Text
OVERCURRENT RELAY
AutoCAD SHX Text
LOCKOUT RELAY
AutoCAD SHX Text
TRANSFORMER-OIL TEMPERATURE RELAY
AutoCAD SHX Text
TRANSFORMER TEMPERATURE RELAY
AutoCAD SHX Text
SUDDEN PRESSURE RELAY
AutoCAD SHX Text
TRANSFORMER-OIL LEVEL RELAY
AutoCAD SHX Text
DIFFERENTIAL RELAY
AutoCAD SHX Text
VS
AutoCAD SHX Text
VOLTMETER SWITCH
AutoCAD SHX Text
VOLTMETER
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
TRIP SIGNAL
AutoCAD SHX Text
CLOSE SIGNAL
AutoCAD SHX Text N.O.
AutoCAD SHX Text N.C.
AutoCAD SHX Text
NORMALLY OPEN
AutoCAD SHX Text
NORMALLY CLOSED
AutoCAD SHX Text
GANG-OPERATED DISCONNECT SWITCH
AutoCAD SHX Text
TRANSFORMER BUSHING
AutoCAD SHX Text
INDICATE LOAD TAP CHANGER
AutoCAD SHX Text 87Z
AutoCAD SHX Text
BUS DIFFERENTIAL RELAY (HIGH-IMP)
AutoCAD SHX Text
PQM
AutoCAD SHX Text
POWER QUALITY METER
AutoCAD SHX Text
AutoCAD SHX Text
CIRCUIT BREAKER
AutoCAD SHX Text
RECLOSING RELAY
AutoCAD SHX Text 11Fxx
AutoCAD SHX Text
FEEDER PROTECTION RELAY
AutoCAD SHX Text 87TxP
AutoCAD SHX Text
TRANSFORMER PROTECTION RELAY-PRIMARY
AutoCAD SHX Text 87TxB
AutoCAD SHX Text
TRANSFORMER PROTECTION RELAY-BACKUP
AutoCAD SHX Text
TMR
AutoCAD SHX Text
TRANSFORMER MONITOR
AutoCAD SHX Text
VOLTS/HERTZ RELAY
AutoCAD SHX Text
KAIC
AutoCAD SHX Text
MR
AutoCAD SHX Text
INTERRUPTING CURRENT, KA
AutoCAD SHX Text
MULTI-RATIO
AutoCAD SHX Text
MTS
AutoCAD SHX Text
MANUAL TRANSFER SWITCH
AutoCAD SHX Text
SS
AutoCAD SHX Text
STATION SERVICE
AutoCAD SHX Text 11Tx
AutoCAD SHX Text
TIE BREAKER PROTECTION RELAY
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text 26Q
AutoCAD SHX Text
AutoCAD SHX Text 71Q
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text
SP
AutoCAD SHX Text V
AutoCAD SHX Text 52 M1
AutoCAD SHX Text 52 T1
AutoCAD SHX Text 52 F31
AutoCAD SHX Text 52 F33
AutoCAD SHX Text 52 F34
AutoCAD SHX Text 52 F32
AutoCAD SHX Text
TO 52M1
AutoCAD SHX Text
PQM1 735
AutoCAD SHX Text 125A
AutoCAD SHX Text 125A
AutoCAD SHX Text
TO MTS-SS2 BUILDING 2
AutoCAD SHX Text
TO PLUG FOR PORTABLE GENERATOR
AutoCAD SHX Text
FROM SS XFMR 2 BUILDING 2
AutoCAD SHX Text
FEEDER #32
AutoCAD SHX Text
FEEDER #33
AutoCAD SHX Text
FEEDER #34
AutoCAD SHX Text NOTES: 1. TIE BREAKERS SHALL USE ZONE SELECTIVE TIE BREAKERS SHALL USE ZONE SELECTIVE INTERLOCKING USING MIRRORED BITS WHEN BOTH TIE BREAKERS ARE CLOSED.
AutoCAD SHX Text
MIRRORED BITS TO 11T2 ON SHEET G004
AutoCAD SHX Text
NON-SEG
AutoCAD SHX Text M
AutoCAD SHX Text
UTILITY METER
AutoCAD SHX Text
BY OTHERS
AutoCAD SHX Text
70823PE
AutoCAD SHX Text
OREGON
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
25NWC001-G004 G004
5/9/2025 25NWC001
COLUMBIA HEIGHTS SUBSTATION
ONE LINE DIAGRAM
SHEET 2 OF 2
JS
ACC
JDW
MLS
0 ISSUED FOR BID SPS 8/20/26
AutoCAD SHX Text
12.47KV MAIN BUS
AutoCAD SHX Text
12.47KV TRANSFER BUS
AutoCAD SHX Text 1200A N.O.
AutoCAD SHX Text
9KV
AutoCAD SHX Text
AutoCAD SHX Text %%U50
AutoCAD SHX Text
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text 1200A N.O.
AutoCAD SHX Text
9KV
AutoCAD SHX Text
AutoCAD SHX Text %%U50
AutoCAD SHX Text
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text 1200A N.O.
AutoCAD SHX Text
9KV
AutoCAD SHX Text
AutoCAD SHX Text %%U50
AutoCAD SHX Text
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text 1200A N.O.
AutoCAD SHX Text
9KV
AutoCAD SHX Text
AutoCAD SHX Text %%U50
AutoCAD SHX Text
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text
1200:5 MR (600:5)
AutoCAD SHX Text
1200:5 MR (600:5)
AutoCAD SHX Text
1200:5 MR (600:5)
AutoCAD SHX Text
2000:5 MR (1600:5)
AutoCAD SHX Text 2000:5
AutoCAD SHX Text 2000:5
AutoCAD SHX Text 2000:5
AutoCAD SHX Text 2000:5
AutoCAD SHX Text FEEDER BKR 38 2000A,15.5kV 25KAIC
AutoCAD SHX Text FEEDER BKR 37 2000A,15.5kV 25KAIC
AutoCAD SHX Text FEEDER BKR 36 2000A,15.5kV 25KAIC
AutoCAD SHX Text FEEDER BKR 35 2000A,15.5kV 25KAIC
AutoCAD SHX Text
FEEDER #38
AutoCAD SHX Text
FEEDER #35
AutoCAD SHX Text 11F38 751
AutoCAD SHX Text 11F37 751
AutoCAD SHX Text 11F36 751
AutoCAD SHX Text 11F35 751
AutoCAD SHX Text (3)
AutoCAD SHX Text
AutoCAD SHX Text 26Q
AutoCAD SHX Text 71Q
AutoCAD SHX Text W1
AutoCAD SHX Text
AutoCAD SHX Text W1
AutoCAD SHX Text
AutoCAD SHX Text W2
AutoCAD SHX Text
AutoCAD SHX Text W2
AutoCAD SHX Text
AutoCAD SHX Text W2
AutoCAD SHX Text 50N
AutoCAD SHX Text W2
AutoCAD SHX Text 51N
AutoCAD SHX Text
AutoCAD SHX Text
SP
AutoCAD SHX Text
CHS-T2 115-12.47/7.2 KV 24/32/40 MVA 55C ONAN/ONAF/ONAF Z=X%
AutoCAD SHX Text
TMR2
AutoCAD SHX Text 87T
AutoCAD SHX Text (3)
AutoCAD SHX Text
PT-2B 7.2KV-120V (60:1)
AutoCAD SHX Text
SMD-20 1A
AutoCAD SHX Text (1)
AutoCAD SHX Text
STATION SERVICE XFMR 2 7200-120/240V, 25KVA
AutoCAD SHX Text MAIN BKR 2 2000A,15.5kV 25KAIC
AutoCAD SHX Text 87Z2
AutoCAD SHX Text 86T2
AutoCAD SHX Text T
AutoCAD SHX Text
FROM 86T2
AutoCAD SHX Text T
AutoCAD SHX Text
AutoCAD SHX Text 86B2
AutoCAD SHX Text T
AutoCAD SHX Text
2000:5 MR (1600:5)
AutoCAD SHX Text 2000:5
AutoCAD SHX Text C
AutoCAD SHX Text T
AutoCAD SHX Text T
AutoCAD SHX Text
FROM 86T2
AutoCAD SHX Text
FROM 87Z2
AutoCAD SHX Text
2000A NON-SEG
AutoCAD SHX Text 87T2P 787
AutoCAD SHX Text 87T2B 787
AutoCAD SHX Text 87Z2 787Z
AutoCAD SHX Text (3)
AutoCAD SHX Text
PT-2A 7.2KV-120V (60:1)
AutoCAD SHX Text
SMD-20 1A
AutoCAD SHX Text W1
AutoCAD SHX Text
AutoCAD SHX Text W1
AutoCAD SHX Text
AutoCAD SHX Text W2
AutoCAD SHX Text
AutoCAD SHX Text W2
AutoCAD SHX Text
AutoCAD SHX Text W2
AutoCAD SHX Text 50N
AutoCAD SHX Text W2
AutoCAD SHX Text 51N
AutoCAD SHX Text 87T
AutoCAD SHX Text
AutoCAD SHX Text
2000:5 MR (1600:5)
AutoCAD SHX Text T
AutoCAD SHX Text T
AutoCAD SHX Text
ALM
AutoCAD SHX Text T
AutoCAD SHX Text T
AutoCAD SHX Text T
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text
TO 52T2 (TIE BKR 2)
AutoCAD SHX Text 1200A N.O.
AutoCAD SHX Text
9KV
AutoCAD SHX Text
AutoCAD SHX Text %%U50
AutoCAD SHX Text
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text
1200:5 MR (600:5)
AutoCAD SHX Text 2000:5
AutoCAD SHX Text TIE BKR 2 2000A,15.5kV 25KAIC
AutoCAD SHX Text
PQM
AutoCAD SHX Text
SUBSTATION SCADA
AutoCAD SHX Text
AutoCAD SHX Text
115KV FROM CHS-DS2 SHEET G003
AutoCAD SHX Text
12.47KV 2000A METALCLAD SWITCHGEAR & CONTROL HOUSE #2
AutoCAD SHX Text T
AutoCAD SHX Text
FROM 86B2
AutoCAD SHX Text 11T2 751
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
90KV
AutoCAD SHX Text 52 H2
AutoCAD SHX Text
CHS-52H2 115KV, 2000A, 40KAIC
AutoCAD SHX Text
2000/5 MR (300/5) C400
AutoCAD SHX Text
2000/5 MR C400
AutoCAD SHX Text (3)
AutoCAD SHX Text (3)
AutoCAD SHX Text (3)
AutoCAD SHX Text (3)
AutoCAD SHX Text
600/5 MR (300/5) C400
AutoCAD SHX Text
600/5 MR C400
AutoCAD SHX Text
2000/5 MR C400
AutoCAD SHX Text
2000/5 MR (1600/5) C400
AutoCAD SHX Text (3)
AutoCAD SHX Text
2000/5 MR (800/5)
AutoCAD SHX Text M
AutoCAD SHX Text
UTILITY METER 2
AutoCAD SHX Text
MTS-SS2 125A, 240/120V 3 POLE, SE
AutoCAD SHX Text
PNL-SS2 125A, 120/240V
AutoCAD SHX Text V
AutoCAD SHX Text
VS
AutoCAD SHX Text 52 M2
AutoCAD SHX Text 52 F35
AutoCAD SHX Text 52 F37
AutoCAD SHX Text 52 F38
AutoCAD SHX Text 52 F36
AutoCAD SHX Text 52 T2
AutoCAD SHX Text
TO 52M2
AutoCAD SHX Text
PQM1 735
AutoCAD SHX Text 125A
AutoCAD SHX Text 125A
AutoCAD SHX Text
TO PLUG FOR PORTABLE GENERATOR
AutoCAD SHX Text
FROM SS XFMR 1 BUILDING 1
AutoCAD SHX Text
TO MTS-SS1 BUILDING 1
AutoCAD SHX Text
TO 52H2
AutoCAD SHX Text
FEEDER #37
AutoCAD SHX Text
FEEDER #36
AutoCAD SHX Text
TO SWITCHGEAR #1 ON SHEET G003
AutoCAD SHX Text
MIRRORED BITS TO 11T1 ON SHEET G003
AutoCAD SHX Text NOTES: 1. TIE BREAKERS SHALL USE ZONE SELECTIVE TIE BREAKERS SHALL USE ZONE SELECTIVE INTERLOCKING USING MIRRORED BITS WHEN BOTH TIE BREAKERS ARE CLOSED.
AutoCAD SHX Text
HOOK STICK OPERATED DISCONNECT SWITCH
AutoCAD SHX Text
UNDERGROUND CABLE TERMINATION
AutoCAD SHX Text
VOLTAGE TRANSFORMER
AutoCAD SHX Text
POWER FUSE
AutoCAD SHX Text
SURGE ARRESTER
AutoCAD SHX Text
CURRENT TRANSFORMER
AutoCAD SHX Text
GROUND
AutoCAD SHX Text
TRANSFORMER, NUMBER OF PHASES,
AutoCAD SHX Text
CONFIGURATION, RATINGS, AND
AutoCAD SHX Text
IMPEDANCE AS INDICATED OR SPECIFIED
AutoCAD SHX Text
%%UELECTRICAL DIAGRAM LEGEND
AutoCAD SHX Text
BUSHING CURRENT TRAMSFORMER
AutoCAD SHX Text
OVERCURRENT RELAY
AutoCAD SHX Text
LOCKOUT RELAY
AutoCAD SHX Text
TRANSFORMER-OIL TEMPERATURE RELAY
AutoCAD SHX Text
TRANSFORMER TEMPERATURE RELAY
AutoCAD SHX Text
SUDDEN PRESSURE RELAY
AutoCAD SHX Text
TRANSFORMER-OIL LEVEL RELAY
AutoCAD SHX Text
DIFFERENTIAL RELAY
AutoCAD SHX Text
VS
AutoCAD SHX Text
VOLTMETER SWITCH
AutoCAD SHX Text
VOLTMETER
AutoCAD SHX Text T
AutoCAD SHX Text C
AutoCAD SHX Text
TRIP SIGNAL
AutoCAD SHX Text
CLOSE SIGNAL
AutoCAD SHX Text N.O.
AutoCAD SHX Text N.C.
AutoCAD SHX Text
NORMALLY OPEN
AutoCAD SHX Text
NORMALLY CLOSED
AutoCAD SHX Text
GANG-OPERATED DISCONNECT SWITCH
AutoCAD SHX Text
TRANSFORMER BUSHING
AutoCAD SHX Text
INDICATE LOAD TAP CHANGER
AutoCAD SHX Text 87Z
AutoCAD SHX Text
BUS DIFFERENTIAL RELAY (HIGH-IMP)
AutoCAD SHX Text
PQM
AutoCAD SHX Text
POWER QUALITY METER
AutoCAD SHX Text
AutoCAD SHX Text
CIRCUIT BREAKER
AutoCAD SHX Text
RECLOSING RELAY
AutoCAD SHX Text 11Fxx
AutoCAD SHX Text
FEEDER PROTECTION RELAY
AutoCAD SHX Text 87TxP
AutoCAD SHX Text
TRANSFORMER PROTECTION RELAY-PRIMARY
AutoCAD SHX Text 87TxB
AutoCAD SHX Text
TRANSFORMER PROTECTION RELAY-BACKUP
AutoCAD SHX Text
TMR
AutoCAD SHX Text
TRANSFORMER MONITOR
AutoCAD SHX Text
VOLTS/HERTZ RELAY
AutoCAD SHX Text
KAIC
AutoCAD SHX Text
MR
AutoCAD SHX Text
INTERRUPTING CURRENT, KA
AutoCAD SHX Text
MULTI-RATIO
AutoCAD SHX Text
MTS
AutoCAD SHX Text
MANUAL TRANSFER SWITCH
AutoCAD SHX Text
SS
AutoCAD SHX Text
STATION SERVICE
AutoCAD SHX Text 11Tx
AutoCAD SHX Text
TIE BREAKER PROTECTION RELAY
AutoCAD SHX Text V
AutoCAD SHX Text
SP
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text 71Q
AutoCAD SHX Text
AutoCAD SHX Text 26Q
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text
AutoCAD SHX Text
NON-SEG
AutoCAD SHX Text
UTILITY METER
AutoCAD SHX Text M
AutoCAD SHX Text
70823PE
AutoCAD SHX Text
OREGON
N
SHT.
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C001 C001
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
CIVIL SITE PLANMWM
MWM
EWM
0 ISSUED FOR BID
MWM 08/25/26
s
12-31-26
SHT.
NO. REVISION BY DATE DATE:
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POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
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BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C002 C002
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
E. CONDITIONS AND DEMOLITION PLANMWM
MWM
EWM
0 ISSUED FOR BID
MWM 08/25/26
SHT.
NO. REVISION BY DATE DATE:
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BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C003 C003
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
GRADING PLANMWM
MWM
EWM
0 ISSUED FOR BID
MWM 08/25/26
SHT.
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C004 C004
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
DRIVEWAY DETAILSMWM
MWM
EWM
0 ISSUED FOR BID
MWM 08/25/26
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C005 C005
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
GENERAL NOTESKPA
MWM
EWM
0 ISSUED FOR BID
MWM 08/25/26
SHT.
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C006 C006
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
FOUNDATION SITE PLANMWM
MWM
EWM
0 ISSUED FOR BID
MWM 08/25/26
N
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C007 C007
08/25/26 25NWCC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
TRANSFORMER FND T1
PLAN & SECTION VIEWS
MEB
KPA
EWM
EWM
0 ISSUED FOR BID
MWM 08/25/26
³
³ ³
³
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C008 C008
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
SECURITY CAMERA POLE FOUNDATION
ELEVATION & DETAIL
BAH
CVP
BAH
EWM
0 ISSUED FOR BID
CVP 08/25/26
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C010 C010
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
DEADEND SUBSTRUCTURE FND DE-1
PLAN & SECTION VIEWS
MEB
KPA
EWM
EWM
0 ISSUED FOR BID
MWM 08/25/26
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C011 C011
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
CIRCUIT BREAKER FND B1
PLAN & SECTION VIEWS
MEB
KPA
EWM
EWM
0 ISSUED FOR BID
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C012 C012
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
HIGH VOLTAGE BUS SUPPORT FND HS-1
PLAN & SECTION VIEWS
MEB
KPA
EWM
EWM
0 ISSUED FOR BID
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
ENGINEERS 25NWC001-C013 C013
08/25/26 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
LOW VOLTAGE BUS SUPPORT LS13
PLAN & SECTION VIEWS
MEB
KPA
EWM
EWM
0 ISSUED FOR BID
TITLE:
SHT.
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
25NWC001-C020 C020
8/1/2025 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
CONDUIT PLAN
JDW
ACC
JS
MLS
CONDUIT PLAN
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CHS-V3
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DET C3B
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SEE NOTE 20
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DET C4
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DET C5 TYP
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DET C2
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SEE NOTE 20
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DET C1
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OIL CONTAINMENT SYSTEM DRAIN SEE SHT C008
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S2 TG
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SEE NOTE 20
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DET C5 TYP
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DET C2
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DET C1
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SEE NOTE 20
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S2 TG
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DET C4
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DET C3A
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DET C3A
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CHS-V2
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S2 TG
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CHS-V4
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S1 TG
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SEE NOTE 21
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SEE NOTE 21
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CHS-V1
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S1 TG
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CHS-V5
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OIL CONTAINMENT SYSTEM DRAIN SEE SHT C008
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DET C3B
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CHS-V6
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S2 TG
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2'-6"C STUB AND CAP TO REMAIN BURIED
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SEE NOTE 23
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TEMPORARY FENCE TO ISOLATE PHASE I AND PHASE II YARD DURING CONSTRUCTION
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SECURITY CAMERA SC-2
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SECURITY CAMERA SC-1
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SECURITY CAMERA SC-3
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SECURITY CAMERA SC-4
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2'-6"C STUB AND CAP TO REMAIN BURIED
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2'-6"C STUB AND CAP TO REMAIN BURIED
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LV-V2
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LV-V1
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S1 TG
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SEE NOTE 24
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S2 TG
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SEE NOTE 25
AutoCAD SHX Text K2H-1,2,3,4,5,6,7,8
AutoCAD SHX Text K1H-1,2,3, 4,5,6,7,8
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SEE NOTE 26
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115KV DDE POLE
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S2 TG
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SCALE: 1/16" = 1'-0"
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FOUNDATION
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CONDUIT IDENTIFICATION, K1 = BUILDING 1, K2 = BUILDING 2
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AutoCAD SHX Text %%uDET C1
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CONDUIT DETAIL
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CONDUIT CAPPED BELOW GRADE
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LIGHT, NUMBER, L1
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RECEPTACLE, NUMBER, R1
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1. THE CONTRACTOR SHALL BE RESPONSIBLE TO FURNISH AND INSTALL THE CONDUIT THE CONTRACTOR SHALL BE RESPONSIBLE TO FURNISH AND INSTALL THE CONDUIT SYSTEM COMPLETE, AS SHOWN ON THE DRAWINGS AND NOTED IN THE SPECIFICATIONS. THE MATERIALS SHALL BE FIRST-CLASS CONDITION QUALITY, NEW, FREE FROM ANY DEFECTS, AND SUITABLE FOR THE USE INTENDED. MATERIALS APPROVED BY UL SHALL BE PROVIDED WHEREVER STANDARDS HAVE BEEN ESTABLISHED BY THAT AGENCY. 2. THE CONTRACTOR SHALL INSTALL ALL MATERIALS DESIGNATED ON THE DRAWINGS, AND THE CONTRACTOR SHALL INSTALL ALL MATERIALS DESIGNATED ON THE DRAWINGS, AND ANY OTHER ASSOCIATED MATERIALS OR PERFORM WORK EVEN THOUGH NOT SHOWN ON THE DRAWINGS BUT REQUIRED TO PROVIDE A COMPLETE CONDUIT SYSTEM. 3. REFER TO TECHNICAL SPECIFICATIONS FOR COMPLETE CONDUIT INSTALLATION REFER TO TECHNICAL SPECIFICATIONS FOR COMPLETE CONDUIT INSTALLATION INSTRUCTIONS. 4. FOR CONDUIT DETAILS AND MATERIALS, SEE SHEET C021. FOR CONDUIT DETAILS AND MATERIALS, SEE SHEET C021. 5. FOR FEEDER CONDUIT SECTIONS SEE SHEET C022. FOR FEEDER CONDUIT SECTIONS SEE SHEET C022. 6. FOR CIRCUIT GETAWAY VAULT DETAILS SEE SHEET C023. FOR CIRCUIT GETAWAY VAULT DETAILS SEE SHEET C023. 7. FOR CONDUIT SCHEDULE, SEE SHEET C024. FOR CONDUIT SCHEDULE, SEE SHEET C024. 8. FOR CIRCUIT SCHEDULE, SEE SHEET C024. FOR CIRCUIT SCHEDULE, SEE SHEET C024. 9. FOR 12.47-kV DISTRIBUTION CIRCUIT GETAWAY ROUTING, SEE THIS SHEET. FOR 12.47-kV DISTRIBUTION CIRCUIT GETAWAY ROUTING, SEE THIS SHEET. 10. ALL CONDUIT LOCATIONS ARE APPROXIMATE, CONTRACTOR TO FIELD VERIFY ACTUAL ALL CONDUIT LOCATIONS ARE APPROXIMATE, CONTRACTOR TO FIELD VERIFY ACTUAL ROUTING. 11. CONTRACTOR TO VERIFY TRANSFORMER, CIRCUIT BREAKER, AND CONTROL BUILDING CONTRACTOR TO VERIFY TRANSFORMER, CIRCUIT BREAKER, AND CONTROL BUILDING LOCATIONS PRIOR TO ROUTING CONDUITS. 12. BELOW GRADE CONDUITS TO BE PVC SCHEDULE 40, UNLESS OTHERWISE SPECIFIED. BELOW GRADE CONDUITS TO BE PVC SCHEDULE 40, UNLESS OTHERWISE SPECIFIED. 13. MINIMUM BEND RADIUS FOR 2" CONDUIT SHALL BE 2'-6", AND MINIMUM DEPTH SHALL MINIMUM BEND RADIUS FOR 2" CONDUIT SHALL BE 2'-6", AND MINIMUM DEPTH SHALL BE 2'-6". 14. CAP ALL SPARE CONDUITS AT BOTH ENDS. CAP ALL SPARE CONDUITS AT BOTH ENDS. 15. ALL SPARE CONDUITS SHALL HAVE A NYLON PULL WIRE INSTALLED. ALL SPARE CONDUITS SHALL HAVE A NYLON PULL WIRE INSTALLED. 16. CONTRACTOR TO STUB AND CAP 2" CONDUIT OUTSIDE SUBSTATION FENCE FOR FUTURE CONTRACTOR TO STUB AND CAP 2" CONDUIT OUTSIDE SUBSTATION FENCE FOR FUTURE COMMUNICATION PROVIDER CONNECTION. 17. PRIOR TO CONSTRUCTION THE CONTRACTOR SHALL VERIFY THAT ALL CONDUITS SHOWN PRIOR TO CONSTRUCTION THE CONTRACTOR SHALL VERIFY THAT ALL CONDUITS SHOWN CONFORM WITH CONDUIT AND CIRCUIT SCHEDULES AND EQUIPMENT MANUFACTURER CIRCUIT REQUIREMENTS. 18. FOR NETWORK DIAGRAM, SEE SHEET E055. FOR NETWORK DIAGRAM, SEE SHEET E055. 19. FEEDER POWER CABLE AND TERMINATIONS TO BE INSTALLED BY PUD. FEEDER POWER CABLE AND TERMINATIONS TO BE INSTALLED BY PUD. 20. INSTALL 1 1/2" CONDUITS AND 2" CONDUITS AS SHOWN ON FOUNDATION DETAILS INSTALL 1 1/2" CONDUITS AND 2" CONDUITS AS SHOWN ON FOUNDATION DETAILS THROUGH TRANSFORMER FOUNDATION FOR NEUTRAL, UNIT GROUNDS, AND CONTROL CABLES. AVOID CONTAINMENT AREA. 21. INSTALL 1 1/2" CONDUITS THROUGH CONTROL BUILDING FOUNDATION FOR REBAR INSTALL 1 1/2" CONDUITS THROUGH CONTROL BUILDING FOUNDATION FOR REBAR GROUND. 22. CONTRACTOR TO STUB AND CAP FEEDER GETAWAY CONDUITS 3' OUTSIDE SUBSTATION CONTRACTOR TO STUB AND CAP FEEDER GETAWAY CONDUITS 3' OUTSIDE SUBSTATION FENCE. CONDUITS TO REMAIN BURIED FOR EXTENSION BY PUD, U.O.S. 23. THE TRANSFORMER OIL CONTAINMENT DRAINAGE SYSTEMS ARE TO JOIN IN THE THE TRANSFORMER OIL CONTAINMENT DRAINAGE SYSTEMS ARE TO JOIN IN THE SUBSTATION YARD AND EXTEND BELOW GRADE TO THE CITY'S 10" DRAIN PIPE ON THE OPPOSITE SIDE OF THE ROADWAY. 24. CONTRACTOR TO INSTALL 6" SCHEDULE 40 PVC CONDUITS FROM CONTROL BUILDING CONTRACTOR TO INSTALL 6" SCHEDULE 40 PVC CONDUITS FROM CONTROL BUILDING CHS-V2 TO PERIMETER VAULT CHS-V6. CONDUIT INSTALLATION TO BE SPLIT BETWEEN PHASE I AND PHASE II CONSTRUCTION. CONDUIT TO BE STUBBED, CAPPED AND REMAIN BURIED AFTER PHASE I INSTALLATION UNTIL EXTENSION DURING PHASE II CONSTRUCTION. 25. CONTRACTOR TO INSTALL FOUR 6" SCHEDULE 40 PVC CONDUITS FROM CONTROL CONTRACTOR TO INSTALL FOUR 6" SCHEDULE 40 PVC CONDUITS FROM CONTROL BUILDING CHS-V1 TO PERIMETER VAULT CHS-V3. CONDUIT TO BE ROUTED AS SHOWN ON THE DRAWING PLANS, DURING PHASE I CONSTRUCTION. CONDUIT INSTALLATION TO BE SPLIT BETWEEN PHASE I AND PHASE II CONSTRUCTION. 26. CONTRACTOR TO INSTALL ONE 2" PVC CONDUIT FROM LV-V1 VAULT AND STUB & CAP CONTRACTOR TO INSTALL ONE 2" PVC CONDUIT FROM LV-V1 VAULT AND STUB & CAP IT OUTSIDE SUBSTATION FENCE NEXT TO WALK GATE.
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NOTES::
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LEGEND:
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LV CONDUIT
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HV CONDUIT
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DIRECTION OF OIL/WATER FLOW
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%%UCHS-V2 VAULT PLAN
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NTS
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%%UVAULT ARRANGEMENT
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%%UCHS-V1
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HV VAULT NUMBER
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DUCTBANK CROSS SECTION NUMBER
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TRENCH RESTORATION CROSS SECTION
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S1 TG
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HV OR LV VAULT
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%%UCHS-V1 VAULT PLAN
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NTS
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712-LA
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712-LA
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70823PE
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OREGON
TITLE:
SHT.
NO. REVISION BY DATE DATE:
REVDRAWING #:THIS DOCUMENT IS THE PROPERTY OF STODDARD
POWER SYSTEMS, LLC & ALL SUBSIDIARIES AND
CAN NOT BE USED WITHOUT WRITTEN PERMISSION
REUSE OF DOCUMENTS
SIZE
BAR IS ONE INCH ON ORIGINAL DRAWING
IF NOT ONE INCH ON THIS SHEET, ADJUST SCALES ACCORDINGLY
VERIFY SCALES DSGN:
CKD:
APD:
PROJECT: D
DRN:0 1"
25NWC001-C021 C021
7/16/2025 25NWC001
NORTHERN WASCO COUNTY PUD
COLUMBIA HEIGHTS SUBSTATION
CONDUIT DETAILS AND MATERIAL LIST
JDW
ACC
JS
MLS
AutoCAD SHX Text %%uNOTES:
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1. REFER TO TECHNICAL SPECIFICATIONS FOR REFER TO TECHNICAL SPECIFICATIONS FOR COMPLETE CONDUIT INSTALLATION INSTRUCTIONS. 2. FOR MAJOR EQUIPMENT MATERIAL ITEMS, FOR MAJOR EQUIPMENT MATERIAL ITEMS, SEE MATERIAL LIST SHEET E004. 3. HOLD ROUTING OF CONDUIT PENDING HOLD ROUTING OF CONDUIT PENDING REVIEW OF MANUFACTURERS DRAWINGS TO DETERMINE LOCATION OF TERMINATION CABINETS. 4. THE CONTRACTOR SHALL BE RESPONSIBLE THE CONTRACTOR SHALL BE RESPONSIBLE TO FURNISH AND INSTALL THE BELOW GRADE CONDUIT SYSTEM COMPLETE. TO STUB AND CAP ALL BELOW GRADE CONDUITS NOT INTENDED FOR USE DURING THIS CONSTRUCTION PHASE, AND TO STUB AND TEMPORARILY CAP BELOW GRADE CONDUITS APPROXIMATELY 9" ABOVE THE SURFACING MATERIAL FOR CONNECTION AND CONTINUATION TO THE ABOVE GRADE CONDUIT SYSTEM. 5. CONTRACTOR TO FURNISH AND INSTALL CONTRACTOR TO FURNISH AND INSTALL CARLON COMPANY, ELECTRICAL PRODUCTS (OR EQUAL) CONDUIT, BUSHINGS, SWEEPS, ELBOWS AND FITTINGS AS NECESSARY AND IN ACCORDANCE WITH TECHNICAL SPECIFICATION TO PROVIDE COMPLETE CONDUIT SYSTEM. 6. MATERIAL LIST INTENDED TO SHOW MAJOR MATERIAL LIST INTENDED TO SHOW MAJOR CONDUIT ITEMS, ADDITIONAL MISCELLANEOUS ITEMS MAY BE REQUIRED FOR A COMPLETE INSTALLATION. 7. MATERIAL QUANTITIES SHOWN ARE FOR MATERIAL QUANTITIES SHOWN ARE FOR CONTRACTORS CONVENIENCE. CONTRACTOR TO VERIFY QUANTITIES AND CATALOG NUMBERS PRIOR TO ORDERING MATERIALS. 8. MANUFACTURERS REFERENCE NUMBER MANUFACTURERS REFERENCE NUMBER INDICATES TYPE OF MATERIAL INTENDED. OTHER MANUFACTURERS EQUIPMENT MAYBE USED SUBJECT TO OWNERS APPROVAL. 9. FOR ADDITIONAL CONDUIT INSTALLATION FOR ADDITIONAL CONDUIT INSTALLATION NOTES, SEE SHEET C020. 10. FOR CONDUIT PLAN, SEE SHEET C020. FOR CONDUIT PLAN, SEE SHEET C020. 11. FOR CONDUIT SCHEDULE, SEE SHEET C024. FOR CONDUIT SCHEDULE, SEE SHEET C024. 12. FOR CIRCUIT SCHEDULE, SEE SHEET C024. FOR CIRCUIT SCHEDULE, SEE SHEET C024. 13. ARRANGE 444-LA VAULT ALIGNMENT TO ARRANGE 444-LA VAULT ALIGNMENT TO BUILDING PER BUILDING FOUNDATION DETAIL A ON SHEET C009. 14. ALL CONDUIT MATERIALS TO BE PROVIDED ALL CONDUIT MATERIALS TO BE PROVIDED AND INSTALLED BY SITE DEVELOPMENT CONTRACTOR, AS NOTED. ANY UNUSED MATERIALS TO BE DELIVERED TO PUD.
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CONSTRUCTION CONDUIT MATERIAL LIST
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ITEM NO.
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APPROX. QTY.
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DESCRIPTION
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AutoCAD SHX Text 3000'
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2" PVC CONDUIT, SCHEDULE 40
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2" PVC-COATED GRS BEND
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2" PVC ADAPTER
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2" GALVANIZED STEEL COUPLER
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2" PVC-COVERED FLEX STEEL CONDUIT, LIQUID-TIGHT
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2" CONNECTOR, STRAIGHT, LIQUID-TIGHT
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2" HUB CONNECTION LOCKNUT
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2" HUB CONNECTION BUSHING
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2" END CAP
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2" BELL END
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3/4" PVC-COVERED FLEX STEEL CONDUIT, LIQUID-TIGHT
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3/4" CONNECTOR, STRAIGHT, LIQUID-TIGHT
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3/4" HUB CONNECTION LOCKNUT
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3/4" HUB CONNECTION BUSHING
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3/4" GRS CONDUIT
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2" TO 3/4" GALVANIZED STEEL REDUCER
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4" PVC CONDUIT, SCHEDULE 40
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