Z--DK Heart Butte Dam Safety Modification

This document is an amendment to a solicitation/modification of a contract, specifically Standard Form 30 (SF30), used by federal government agencies like the Bureau of Reclamation. It outlines the procedures for acknowledging amendments to offers and for modifying existing contracts or orders. Offerors must acknowledge receipt of amendments by completing items 8 and 15, returning copies, or sending a separate communication, with failure to do so potentially resulting in rejection of their offer. Changes to already submitted offers can also be made via letter or electronic communication. The form details various sections for contract ID, amendment/modification numbers, effective dates, and descriptions of changes. It also specifies the parties involved, such as the contractor/offeror and the contracting officer. The document includes a continuation sheet for supplies/services and a period of performance from December 31, 2026, to June 30, 2030.

Amendment No. 0004 to Solicitation No. 140R6026R0004 introduces several key changes and clarifications for a federal government Request for Proposals. The amendment revises the Past Performance Questionnaire, Small Business Subcontracting Plan, and Section L – Instructions, Conditions, and Notices to Bidders. Significant changes are marked by a vertical line in the margin, and all revised content applies. The deadline for proposal receipt is extended to June 10, 2026, at 1700 MDT. The amendment includes a partial list of contractor questions and government answers received before May 15, 2026, for informational purposes, with later questions to be addressed in future amendments. It clarifies requirements for past performance submissions, emphasizing that Past Performance Questionnaires (PPQs) may be submitted for projects where CPARS are obtained to facilitate evaluation. It also clarifies that offerors are not required to provide design calculations to potential bidders. The amendment confirms that temporary housing will be for government representatives, and proposals should be based on maximum specified occupancy.

The Bureau of Reclamation's Technical Service Center conducted soil testing on conduit and borrow materials from Heart Butte Dam, ND. The tests included water content, dry unit weight, physical properties, direct shear, reaction to HCl, and X-ray diffraction (XRD). Conduit material was classified as non-plastic silty to poorly graded sand with silt, showing strong reactions to HCl in some gravel samples. Direct shear tests indicated an internal friction angle of 39.4° and cohesion of 292 psf. XRD analysis revealed mainly quartz, smectite, and illite clays. Borrow material was classified as silty sand, with one sample showing a maximum dry unit weight of 130.5 pcf and an optimum water content of 11.2%.

The U.S. Department of the Interior, Bureau of Reclamation, is undertaking the Heart Butte Dam Safety of Dams Modification project in North Dakota. This draft specification outlines the comprehensive scope of work, encompassing general requirements, existing conditions, concrete work, metal fabrications, earthwork, exterior improvements, and utilities. Key components include clearing, dewatering, jet grouting, conduit repair, excavation, filter layer installation, stability berm construction, and site restoration. The document details project coordination, work restrictions, reservoir operations, and the use of an onsite video system. It also includes a detailed price schedule for various tasks and optional price schedules for highway repaving, supplementary backfill grouting, reservoir release care, and phased dewatering efforts. The project aims to enhance dam safety through extensive structural and environmental modifications.

This document is an amendment to a solicitation/modification of a contract, specifically Standard Form 30, which outlines the procedures for acknowledging and making changes to offers. It details three methods for offerors to acknowledge receipt of an amendment: by completing items 8 and 15 and returning copies, by acknowledging receipt on each offer copy, or by separate communication referencing the solicitation and amendment numbers. Failure to acknowledge receipt by the specified deadline may lead to the rejection of an offer. It also clarifies that changes to an already submitted offer can be made via letter or electronic communication, provided they reference the solicitation and amendment and are received before the opening hour. The form includes sections for identifying contract and amendment details, administrative information, and descriptions of the amendment or modification. It also indicates whether the offer receipt deadline is extended. The document emphasizes that all other terms and conditions of the original document remain in full force and effect, and provides spaces for signatures of both the contractor/offeror and the contracting officer.

The U.S. Department of the Interior, Bureau of Reclamation, has issued Solicitation No. 140R6026R0004 for the Heart Butte Dam Safety of Dams Modification project in North Dakota. This project, estimated to exceed $10,000,000, involves comprehensive civil, geotechnical, and structural construction to enhance dam safety. It is a firm fixed-price contract with a performance period from December 31, 2026, to April 30, 2030. Key work includes dewatering, jet grouting, concrete repair, excavation, and the construction of new stability berms and drainage systems. A mandatory site visit is scheduled for April 28, 2026. Proposals must be submitted electronically, and contractors must register with the System for Award Management (SAM) and use the Invoice Processing Platform (IPP). The solicitation details specific work restrictions, reservoir operations during construction, and a comprehensive price schedule with optional work items.

This government document is an amendment to solicitation number 140R6026R0004, effective April 13, 2026. It modifies the original solicitation by changing item 00010 to "Heart Butte Dam, Safety of Dams Modification," with a product/service code of Z2PZ (REPAIR OR ALTERATION OF OTHER NON-BUILDING FACILITIES). The period of performance for this item is from December 31, 2026, to June 30, 2030. Offerors must acknowledge receipt of this amendment by completing items 8 and 15, returning copies, acknowledging on each offer copy, or sending a separate communication, ensuring receipt by the specified date to avoid rejection of their offer. The amendment also includes standard forms for modifications of contracts/orders, specifying authorities for changes. The Bureau of Reclamation, Missouri Basin Regional Office, issued this amendment, and it was signed by Travis Stephens.

This document is an amendment to solicitation number 140R6026R0004/0003, issued by the Bureau of Reclamation, Missouri Basin Regional Office. It outlines the procedures for offerors to acknowledge receipt of the amendment, either by completing specific items on the form, acknowledging it on each copy of their offer, or by separate communication. Failure to acknowledge receipt by the specified hour and date may result in the rejection of an offer. The amendment also allows for changes to already submitted offers under certain conditions. The Period of Performance for the associated contract is extended from December 31, 2026, to June 30, 2030.

Amendment No. 0003 for Solicitation No. 140R6026R0004 outlines significant revisions to the Heart Butte Dam Safety of Dams Modification project. Key changes include updated specifications for supplies, services, prices/costs, project record documents, and drawings. Specifically, Section 00 00 50, Section 01 78 30, and Section 52 00 00 are replaced with revised versions, along with an updated drawing (203-D-60004 – Revision 1). Contract clauses in Section I and instructions to bidders in Section L are also revised. The deadline for proposal submission has been extended to June 8, 2026, at 2:00 pm MDT. The amendment includes a comprehensive price schedule detailing various construction and modification tasks, along with several optional price schedules for highway repaving, supplementary backfill grouting, reservoir release care, and phased dewatering operations. Additionally, it details requirements for maintaining project record documents, including as-built drawings and handling discrepancies. New contract clauses are introduced, including those related to System for Award Management (SAM) registration, safeguarding contractor information systems, and prohibitions under the Federal Acquisition Supply Chain Security Act (FASCSA).

The Heart Butte Dam Safety Modification project, Solicitation No. 140R6026R0004, is a Request for Proposal (RFP) by the U.S. Department of the Interior, Bureau of Reclamation, with an estimated price range exceeding $10,000,000. The project, under NAICS code 237990, involves full and open competition with a mandatory completion within 1277 calendar days after receiving the Notice to Proceed. Key requirements include an offer guarantee, acknowledgement of amendments, and proposal submission via email by May 29, 2026. The scope of work encompasses temporary utility installations, removal of existing structures, dewatering systems, cofferdam installation, soil reinforcement, jet grouting, conduit repair, excavation, and the construction of new stability berms, drainage systems, and measurement points. Work restrictions specify allowable hours, public access limitations, and a detailed sequencing for critical activities like jet grouting and deep filter trench excavation. Proposals will be evaluated based on technical plan, project management, experience, past performance, small business participation, and price, with non-price factors being significantly more important than price. Specific technical requirements are detailed for backfill grouting, jet grouting test sections, concrete demolition, and water removal/control, emphasizing thorough submittals and quality control.

The “Heart Butte Dam, North Dakota, 2024 Final Design Geologic Investigations” report details geological explorations conducted from January to April 2024 for proposed modifications to the Heart Butte Dam. The dam, a unit of the Pick-Sloan Missouri Basin Program, is an earthfill structure providing irrigation, flood control, wildlife conservation, and recreation benefits. The investigations included test pit excavations and boreholes to characterize subsurface sandstone bedrock and alluvial material, identify borrow materials for a proposed berm, and collect supplemental data for design modifications. Laboratory testing was performed on soil samples for physical properties, compaction, dispersion, strength, and permeability. The report provides detailed summaries of test pit and borehole findings, geologic units (Fill, Zone 2, Quaternary Alluvium, Bullion Creek Formation), and groundwater conditions, including an incident with a severed irrigation line. The overall purpose was to gather essential geological and geotechnical data to inform the final design of dam modifications and ensure environmentally and economically sound water resource management.

This Technical Memorandum (TM) No. 8550-2020-06 details geotechnical laboratory testing results for Heart Butte Dam in North Dakota. The testing program, conducted by the Bureau of Reclamation's Technical Service Center, aimed to characterize materials from beneath the conduit floor, embankment and foundation, and a borrow area to support the final design of outlet works conduit modifications. The dam, a 142-ft high earthen embankment, faces risks of internal erosion. Samples from drill holes and test pits were analyzed for physical properties, permeability, compressive strength, shear strength, erosion potential, and mineralogy. Key findings include the non-plastic silty sands under the conduit floor, varying gravel content in embankment and alluvium materials, and sandstone foundation materials ranging from extremely erodible to moderately resistant. Uniaxial compressive strength tests were performed on bedrock samples (sandstone and shale). The report outlines testing methods, results, and conclusions, providing critical data for the dam's safety and future modifications.

The U.S. Department of the Interior's Bureau of Reclamation issued Technical Memorandum No. 8550-2024-25 in December 2024, detailing a borrow soil investigation for the Heart Butte Dam Final Design. This study is part of modifications to address internal erosion issues with the dam's outlet works, located on the Heart River, North Dakota. The preferred alternative includes jet grouting, a sand filter trench, and a zoned seepage berm. The investigation focused on identifying approximately 19,000 cubic yards of miscellaneous fill material from the Downstream Right Abutment Borrow Area (DSRAB). Laboratory testing on DSRAB soil samples, classified as SM – silty sand, included physical properties, compaction, dispersion potential, undrained strength, and permeability. The DSRAB material was found to be cohesionless and non-plastic, with an average vertical hydraulic conductivity of 8E-4 cm/s. The study provides crucial geotechnical data for the final design and construction of the proposed berm, ensuring the safety and stability of Heart Butte Dam.

The Bureau of Reclamation, U.S. Department of the Interior, issued Solicitation No. 140R6026R0004 for the Heart Butte Dam Safety of Dams Modification project in Grant County, North Dakota. This federal RFP, estimated to cost over $10,000,000, seeks a firm fixed-price contract for civil, geotechnical, and structural construction to enhance dam safety. The project, with a NAICS code of 237990 ($45 million small business size standard), has a performance period from December 31, 2026, to April 30, 2030. A mandatory site visit is scheduled for April 28, 2026. Key tasks include installing temporary infrastructure, dewatering systems, jet grouting, conduit repair, embankment construction, and environmental restoration. Contractors must register with SAM and use IPP for invoicing. Specific work restrictions and reservoir operation protocols are detailed, along with requirements for a comprehensive construction program and onsite video monitoring. The solicitation emphasizes adherence to safety and health standards.

The GLFS Technical Memorandum (GLFS TM No. 8550-2025-02) details geotechnical laboratory testing for final design modifications at Heart Butte Dam in North Dakota. The project addresses internal erosion issues with the outlet works, proposing a jet grout cutoff wall, a sand filter trench, and a zoned seepage berm. The memorandum documents undrained strength and permeability testing of existing Zone 2 material to inform excavation stability during construction and presents soil physical property test results from 2024 drill holes (DH-24-03 to -05) to support the design of the sand filter trench and seepage berm. Previous studies and modifications, including various Field Exploration Requests (FERs) and Corrective Action Studies (CAS), are summarized, highlighting the dam's history of internal erosion concerns and the evolution of proposed solutions. The testing methods for physical properties, undrained strength, and permeability are also outlined.

The Bureau of Reclamation, Missouri Basin Regional Office, has issued Solicitation No. 140R6026R0004 for construction, alteration, or repair work. This Request for Proposal (RFP) is for the "Heart Butte Dam, Safety of Dams Modification" project, identified by Product/Service Code Z2PZ (Repair or Alteration of Other Non-Building Facilities). Offers are due by May 29, 2026, at 17:00 local time. The government requires performance to begin within 10 calendar days after notice to proceed and completion within 1216 calendar days. A performance and payment bond is required within 10 calendar days after award. Offers must be held open for 180 calendar days for government acceptance. The period of performance for the project is from December 31, 2026, to April 30, 2030, with a delivery date of April 30, 2030. The solicitation outlines the terms for offer submission, acceptance, and award.

The Bureau of Reclamation, U.S. Department of the Interior, is soliciting proposals for the Heart Butte Dam Safety of Dams Modification project in Grant County, North Dakota. This federal government RFP (Solicitation No. 140R6026R0004) outlines a comprehensive suite of civil, geotechnical, and structural construction activities to enhance the dam's safety and performance. The project has an estimated magnitude of over $10,000,000, with a firm fixed-price contract anticipated from December 31, 2026, to April 30, 2030. Key work components include clearing, dewatering systems installation, jet grouting, conduit demolition and repair, backfill grouting, excavation, new filter and drainage systems, stability berm construction, and restoration. A mandatory site visit is scheduled for April 28, 2026. Contractors must register with the System for Award Management (SAM) and use the Invoice Processing Platform (IPP) for payments. The NAICS code is 237990, with a small business size standard of $45 million.

The Bureau of Reclamation's Pick-Sloan Missouri Basin Program, Heart Division, outlines extensive infrastructure modifications at Heart Butte Dam, North Dakota. The project involves protecting and abandoning existing piezometers, removing weirs, and constructing a mechanically stabilized earth (MSE) wall. Detailed maps specify locations for existing infrastructure, excavation limits, contractor use areas, and new installations like sidewalks and drainage pipes. The plans include geological cross-sections, material descriptions, and notes on survey control, coordinate systems, and safety. Key aspects include deep filter trench excavations, soil reinforcement zones, jet grouting treatment zones, and the replacement of the fishing platform. The project emphasizes maintaining excavations in dry conditions and protecting existing facilities.