Request for Bid:
Hidden Valley Ranch: Dairy Facility Removal
River Partners is seeking bids from qualified contractors to complete a demolition and cleanup project of the Hidden Valley Dairy facility located at 8601 Dos Rios Lane, Modesto, CA. This includes two primary components, Facility Demolition and Stockpiled Concrete Disposal, with additional details provided below. Prospective bidders are welcome to provide a bid response focused on one or both work components.
The Hidden Valley Ranch site contains a former dairy cow storage/feedlot facility and associated outbuildings, ~4.5 acres of polebarns and stalls, 8 acres of paddocks with perimeter metal fencing, and miscellaneous debris. Use of the facility was discontinued on July 5, 2026. The goal of the project is to complete disassembly, demolition, and offhaul for disposal/recycling of: all identified structures down to slab/grade; fencing and stalls; debris/trash; removal of paving/slab/curbs under Polebarn 1; and removal or onsite crushing of mixed concrete debris presently stockpiled onsite and generated in the course of the demolition project.
We kindly ask that you review the document linked below thoroughly and submit your responses to the Request for Bid by September 14, 2026. We look forward to reviewing your submission and potentially working together in the future.
Important dates:
- September 3, 2026: Bid walk at the project site
- September 7, 2026: Deadline for submittal of questions on Bid (by 5:00 PM Pacific Time)
- September 9, 2026: River Partners response to questions
- September 14, 2026: Deadline for Bid submission
If you have any questions or need further clarification, please email abrunk@riverpartners.org
Request for Bid:
Hidden Valley Ranch: Dairy Lagoon Decommissioning and Manure Removal
River Partners is seeking bids from qualified contractors to complete the Hidden Valley Dairy lagoons decommissioning project located at 8601 Dos Rios Lane, Modesto, CA. This includes two primary components, Dairy Lagoon Closure and Dairy Facility Manure Removal, with additional details provided below.
The Hidden Valley Ranch site contains two unlined dairy manure wastewater settling lagoons (~5.75 acres and ~1.5 acres), and ~1 acre of unlined secondary wastewater settling area with surficial manure, with use discontinued on July 5, 2026. The site also contains ~8 acres of former dairy paddocks and paddock drainage areas with surficial manure, and ~ 4.3 acres of former dairy polebarns with residual manure among the stalls. River Partners is seeking bids from qualified contractors to (1) remove all manure from the identified work areas down to native soils, (2) offhaul the excavated lagoon material to a nearby property (~8937 Grayson Road the “Island Dairy Ranch” property, ~2.3 road miles from work site) owned by River Partners to stockpile at a designated location for future agricultural field application, and (3) decommission the lagoon storage/settling areas.
We kindly ask that you review the document linked below thoroughly and submit your responses to the Request for Bid by September 4, 2026. We look forward to reviewing your submission and potentially working together in the future.
Important dates:
- August 27, 2026: Bid walk at the project site
- August 31, 2026: Deadline for submittal of questions on Bid (by 5:00 PM Pacific Time)
- September 2, 2026: River Partners to Release Addendum response to questions (by 5:00 PM Pacific Time)
- September 4, 2026: Deadline for Bid submission (by 5:00 PM Pacific Time)
If you have any questions or need further clarification, please email abrunk@riverpartners.org
Archive
RFQ: Design services
River Partners is inviting partners to submit statement of qualifications for providing design services to support our ongoing and upcoming projects. River Partners is committed to excellence in our services and seeks to partner with vendors who share our dedication to quality and innovation. We are particularly interested in vendors with a strong track record in planning and design services aimed at restoring the ecological integrity and dynamic functions of rivers and wildlife.
We kindly ask that you review the document linked below thoroughly and submit your statement of qualifications by June 14, 2024. We look forward to reviewing your submission and potentially working together in the future.
Important dates:
- May 31, 2024: Deadline for submittal of questions on RFQ
- June 7, 2024: Q&A Digest emailed
- June 14, 2024: Deadline for receipt of responses to RFQ
- June 28, 2024 (anticipated): Final selection and notification to all submitted firms. Begin development of MSAs.
If you have any questions or need further clarification, please email info@riverpartners.org by May 31, 2024.
