SAN FRANCISCO--(BUSINESS WIRE)--Fitch Ratings has affirmed the 'AA' rating with a Stable Outlook on Harris County, Texas' (the county) outstanding senior lien toll road revenue bonds, including its $109.5 million of revenue refunding bonds, series 2012B-1 (SIFMA Index Bonds). The bonds are issued by the county on behalf of the Harris County Toll Road Authority (HCTRA). The series 2012B-1 bonds are being remarketed, with the transaction expected to price on or about July 22, 2015. All senior bon