NEW YORK--(BUSINESS WIRE)--On the effective date of Sept. 4, 2015, Fitch Ratings will affirm the short-term rating of 'F1+' assigned to the Lower Colorado River Authority (LCRA) commercial paper notes, taxable series B (notes). The rating action is in connection with the (i) extension of the expiration date of the current irrevocable direct-pay letter of credit (LOC) provided by State Street Bank and Trust Company (State Street, rated 'AA/F1+', Stable Outlook) supporting the notes to Sept. 10,