SAN FRANCISCO--(BUSINESS WIRE)--Fitch Ratings has assigned an 'A+' rating to the following bonds issued by Modest Irrigation District Financing Authority (MIDFA), on behalf of the Modesto Irrigation District (MID): --$65.6 million electric system revenue bonds, series 2015A; --$28.0 million electric system refunding revenue bonds, series 2015B. The Rating Outlook is Stable. Proceeds from the series 2015A bonds will finance a new billing system and distribution and transmission system improvemen