The U.S. Department of the Interior is soliciting bids for safety modifications at the Heart Butte Dam. The project involves significant geotechnical and design work, supported by extensive geological and lab testing reports. Performance of services will be at the Heart Butte Dam location. No specific budget amount is provided in the description. The solicitation details are available in the referenced attachments.

DK Heart Butte Dam Safety Modification Please see the attachments entitled "Solicitation 140R6026R0004 0001 4.14.26" and "03B_00 00 02_Drawings 11x17" for the full solicitation details. A copy of the ... DK Heart Butte Dam Safety Modification Please see the attachments entitled "Solicitation 140R6026R0004 0001 4.14.26" and "03B_00 00 02_Drawings 11x17" for the full solicitation details. A copy of the 2018-2021 Heart Butte Dam Corrective Action Study Geologic Exploration Report can be requested from the Contracting Specialist at mitchell_frost@ios.doi.gov.

DK Heart Butte Dam Safety Modification Please see the attachments entitled "Solicitation 140R6026R0004 4.13.26" and "03B_00 00 02_Drawings 11x17" for the full solicitation details. A copy of the 2018-... DK Heart Butte Dam Safety Modification Please see the attachments entitled "Solicitation 140R6026R0004 4.13.26" and "03B_00 00 02_Drawings 11x17" for the full solicitation details. A copy of the 2018-2021 Heart Butte Dam Corrective Action Study Geologic Exploration Report can be requested from the Contracting Specialist at mitchell_frost@ios.doi.gov.

The Bureau of Reclamation intends to issue a Request for Proposals around April 10, 2026, for a firm fixed-price contract to perform comprehensive dam safety modifications at the Heart Butte Dam near Elgin, North Dakota. The scope of work includes dewatering, cofferdam construction, foundation grouting, conduit rehabilitation, and the installation of new filter and drainage systems. The estimated construction cost is over $10,000,000. Work is anticipated to proceed 24 hours a day for six days a week. Responses to this pre-solicitation notice are requested by March 31, 2026.