Renovation of a laboratory facility in Lead, South Dakota. Completed plans call for the renovation of a laboratory facility.

**As of September 19th, 2025, this project has not yet been awarded. A timeline for the award has not yet been established.** The South Dakota Science and Technology Authority (SDSTA) is seeking bids for additional structural steel and welding improvements on three existing trolley beams. All work is located within the Ross Headframe at the Sanford Underground Research Facility (SURF) The general scope of work for this contract will include the following: Complete the structural strengthening improvements of three trolley beams at the Ross Headframe. These improvements are more fully detailed in the referenced and attached Albertson Engineering drawings, Ross Headframe Trolley Beam Strengthening. SDSTA is a quasi-governmental agency established by the State of South Dakota to operate and manage SURF at the former Homestake Gold mine in Lead, SD. This facility has been rehabilitated and developed to support a variety of scientific experiments, including physics, biology, geology, and others. The Ross Headframe is equipped with a trolley beam and 7.5 Ton hoist on the west side of the cage compartment. This is utilized for loading/unloading materials and supplies onto rail cars traveling underground. A previous inspection of this trolley beam derated it down to 9600 pounds. This project strengthens the trolley beam and supporting structure to regain the lost capacity. This will allow the hoist to lift up to a new 10T capacity. Directly to the north of this trolley beam is an identical trolley beam aligned with the counter weight compartment. It will also be strengthened in a similar fashion to increase the capacity to 10T. On the east side of the shaft is another trolley beam that hasn't been utilized in the past. It runs north-south and is directly east, approximately three feet from an existing active trolley beam. It has been evaluated by Albertson Engineering to be put into service as an 8T trolley beam. This beam will require some minor improvements on the north end connection and support. The trolley beam and hoist west of the cage compartment are currently operating and used several days a week. The floor in the headframe is cracked concrete with some graveled areas creating some unlevel ground conditions. The contractor needs to be aware of these conditions if they use a JLG style lifting device to complete the work. SDSTA will also be active in both areas, supporting ongoing underground operations. The areas directly below these trolley beams are very active travel ways to complete SDSTA's work. Coordination for daily work plans will have to be reviewed with the Ross Shaft Superintendent, Mike Johnson. The proposal shall describe how you plan to work above active areas of the headframe and keep people safe below the work area. Work within 6 feet of the shaft will require coordination with SDSTA to develop a plan to protect the shaft opening. This will be required to prevent anything from entering the shaft area. The general scope of work for this contract will include the following: Complete the structural strengthening improvements of three trolley beams at the Ross Headframe. These improvements are more fully detailed in the referenced and attached Albertson Engineering drawings, Ross Headframe Trolley Beam Strengthening. REVISED Questions Submitted By ................................................ September 3, 2025 2:00 pm MT REVISED Questions & Answers Posted: ...................................... September 9, 2025 4:00 pm MT Work is to be completed in 45 calendar days from Notice to Proceed, subject to feedback in the proposal. The bid in response to this RFB must contain the following: 6.1 A total cost for all work as shown in the attached drawings including profit and overhead. 6.2 Include Requirements listed in Section 4.0 6.3 Written exception(s) to RFB 6.4 Warranty information 6.5 Proof that each applicable product meets the BUY AMERICAN REQUIREMENTS FOR INFRASTRUCTURE PROJECTS. 7.1 For your bid to be eligible for consideration, please submit an electronic copy in .pdf format to David Raad at draad@sanfordlab.org. REVISED Questions Submitted By September 3, 2025 2:00 pm MT Questions must be sent in writing by email to David Raad (draad@sanfordlab.org). Answers will be emailed to all prospective proposers and posted to the Sanfordlab.org website. Prospective proposers must coordinate with David Raad regarding attendance at the site visit in Lead, SD. 7.3 The bid period may be extended at the discretion of the SDSTA based on the quantity and/or complexity of questions. Any notices of extension of time to respond will be distributed to all prospective proposers. 7.4 All communications regarding this procurement between RFB release and contract award shall be directed to David Raad. Communications with other SDSTA staff regarding this procurement in advance of the contract award are not allowed. The SDSTA will review all submitted bids for adherence to this request's requirements and capabilities and select the firm providing the Lowest Cost - Technically Acceptable bid.