Oregon Buys #S-R33123-00017897

Columbia Heights Substation Construction for Northern Wasco County PUD

Northern Wasco County People's Utility District (PUD) is seeking bids for the construction of the Columbia Heights Substation in The Dalles, Oregon. - Government Buyer: - Northern Wasco County PUD, Purchasing Specialist III (Cole Isaacson) - Project Scope: - Complete rebuild of the Columbia Heights Substation into a two-bay facility, executed in two phases - Site development: access driveway, clearing, excavation, grading, backfill, compaction, crushed rock surfacing - Installation of perimeter masonry wall panels (Superior Concrete Product), sliding and swing gates, and adjustment of existing fencing - Construction of reinforced concrete foundations, including oil containment systems for transformers - Installation of below-grade vaults, drainage pipes, low and high voltage conduits, and grounding systems - Erection of galvanized steel structures, non-segregated bus systems, and low voltage wiring - Major Equipment (Owner-Furnished): - Two 115 kV 12.47/7.2 kV, 24/32/40 MVA Power Transformers - Two Metalclad Switchgear Buildings (12.47/7.2 kV, 2000 A) - Two 115 kV Circuit Breakers (1200 A, 40 kAIC) - Technical Specifications: - Drawings and specs prepared by Stoddard Power Systems, LLC - Detailed geotechnical recommendations for foundation design - Notable Requirements: - Compliance with prevailing wage laws - Submission of sealed bids with electronic copy - Attendance at pre-bid conference - Liquidated damages for delays; one-year warranty after acceptance - No specific OEMs named for major electrical equipment; Superior Concrete Product is specified for masonry wall panels. - Contract completion required by August 9, 2028, with key milestones for transformer and switchgear delivery and installation between June 2027 and June 2028.

Description

This solicitation is for the construction of the Columbia Heights Substation located at 1100 East 16th Place, The Dalles, Oregon. The project includes site development such as access driveway, clearing, excavation, grading, backfill, compaction, installation of site surfacing material, installation of substation perimeter masonry wall panels, construction of foundations including oil containment system for the transformer, installation of vaults, drainage pipes, conduits, and grounding. A pre-bid conference is scheduled for September 23, 2026, and bids are due by October 13, 2026. The procurement method is a competitive sealed bid.

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