John Marshall High School Greenhouse Replacement

Rochester Public Schools (ISD #535) in Olmsted County, Minnesota is procuring a prime contractor for the John Marshall High School Greenhouse Replacement project through a competitive sealed bid process. The scope of work encompasses the complete replacement of the main greenhouse structure, updates to existing masonry walls, mechanical and electrical infrastructure improvements, minor site modifications, and retention of certain existing conditions. Key deliverables include demolition of the existing greenhouse glazing and structure, removal of the top three courses of concrete masonry units, installation of two new condensing boilers with 379.3 MBH capacity each, replacement of hydronic piping and unit heaters, electrical panel upgrades from 60-amp to 100-amp service, plumbing modifications including backflow preventer relocation, site grading and drainage improvements, and landscape restoration. The project requires compliance with the 2020 Minnesota State Building Code, the 2024 International Building Code, and Minnesota prevailing wage statutes. Bidders must demonstrate capacity for the work and submit a completed Responsible Contractor Act Verification Form certifying compliance with Minnesota Statutes 16C.285, subdivision 3, including verification of all first-tier subcontractors. The bid due date is March 4, 2026, at 10:00 AM Central Standard Time, with submission required through the Rochester Public Schools online Bonfire E-Procurement Platform. A pre-bid conference and mandatory site tour is scheduled for February 19, 2026, at 3:00 PM at the school location (1510 14th Street NW, Rochester, Minnesota). The estimated Notice to Proceed is March 18, 2026, with construction scheduled to commence June 8, 2026, greenhouse erection and sitework completion by August 14, 2026, substantial completion by September 11, 2026, and final completion by September 25, 2026.

Bid security must be submitted in the form of a surety bid bond, cashier's check, or certified check in an amount not less than ten percent of the maximum base bid, payable to Rochester Public Schools (bids under $25,000 are exempt). The successful contractor must furnish performance and labor and materials payment bonds, each in the full amount of the contract, with costs included in lump sum pricing. The bid form includes a base bid for primary greenhouse replacement work and four optional alternates: Alternate A-1 for New Greenhouse Work Tables, Alternate A-2 for Insect Vent Screens, Alternate A-3 for a Retractable Shade/Heat Retention Curtain System, and Alternate A-4 for Grow Lighting. The contract documents emphasize compliance with applicable state and local building codes, procurement procedures, quality assurance requirements, and extensive technical specifications across multiple divisions. Contractors must obtain necessary permits and provide proof of Minnesota Department of Human Rights compliance. While no specific set-aside designations for disadvantaged enterprises are mentioned in the available documents, the project is subject to Minnesota's Responsible Contractor Act requirements and prevailing wage standards. The contract documents do not identify an incumbent vendor or existing contractor, as this represents a new greenhouse replacement project. Specific budget or award values are not disclosed in the procurement materials provided.