The Bureau of Reclamation (Reclamation) intends to issue a modification to Cooperative Agreement R10AC20835 to Tehama-Colusa Canal Authority to add funds and extend completion date for continuation of work. The Catalog for Domestic Assistance (CFDA) is 15.512, Central Valley Project Improvement Act, Public Law 102-575, Section 3406(b)(10). Modification amount: $1,031,497.13. The project provides for the design and related services and overall support leading to the construction of the selected alternative for the Fish Passage Improvement Project at the Red Bluff Diversion Dam, Central Valley Project, California. The design iterations required have resulted in a significant increase in the required effort to successfully design and prepare for construction of a mitigation plan. (Refer to the Notice of Intent to Award Announcement No. R12AS20037 for additional information.) A Determination by the Government not to compete this proposed financial assistance based upon Departmental Manual 505 DM 2, paragraph 2.14(B)(2) & (4) is solely within the discretion of the Government. This notice of intent is NOT a request for competitive proposals. Questions concerning this announcement should be directed to Mary Sims/Grants Officer, by email at msims@usbr.gov.