ITB 11658 Thompson's Mills Tailrace Support Column Replacement Project

The Oregon Parks and Recreation Department (OPRD) is seeking bids for the Thompson's Mills State Heritage Site Tailrace Support Column Replacement Project, a specialized structural repair initiative located in Linn County. This Invitation to Bid (ITB 11658) focuses on repairing and replacing critical structural elements supporting the Thompson's Mill building, including reinforced concrete work, carpentry, and minor steel fabrication. The project requires hand excavation due to archaeological restrictions and involves precise structural interventions such as creating three new concrete footings, replacing wood columns, and installing brackets. Bidders must submit proposals through the OregonBuys electronic procurement system and are required to attend a mandatory pre-bid conference on April 3, 2025, at 2:00 PM. The project has a substantial completion date of May 31, 2025, and a final completion date of June 19, 2025, with bids due on April 15, 2025, at 2:00 PM. Evaluation will focus on selecting the lowest responsive bidder, with specific emphasis on technical capability and historical preservation experience.

The procurement strongly encourages participation from diverse businesses, including minority-owned, women-owned, emerging small, and veteran-owned enterprises. Bidders must be registered with the Oregon Construction Contractors Board and demonstrate specific historic preservation experience, including documentation of at least three projects completed on National Register of Historic Places buildings within the past ten years. Contractors must comply with Oregon Bureau of Labor and Industries (BOLI) prevailing wage rates for Linn County (Region 4). The project encompasses six primary bid line items: mobilization/overhead, site protection/work platforms/structural bracing, concrete forming/reinforcement/pouring, steel fabrication and welding, carpentry repairs, and exterior painting and wood coatings. While a specific contract value is not explicitly stated, the comprehensive nature of the structural repair work and the specialized requirements suggest a significant investment in preserving this historical site's structural integrity. The technical specifications and architectural drawings provide detailed guidance on material requirements, including pressure-treated Douglas fir-larch wood members and hot-dip galvanized steel components, with concrete specified to have a minimum 28-day compressive strength of 4,000 PSI.