...S&P Global Ratings has assigned its '##-' rating to the Triborough Bridge and Tunnel Authority (TBTA), N.Y.'s pro forma $265 million series 2017A general revenue bonds and $400 million series 2017B general revenue refunding bonds. The outlook is stable. The series 2017A bonds are being issued to finance bridge and tunnel projects. The series 2017B refunding bonds, depending on market conditions, will be issued to refinance certain TBTA general revenue bonds outstanding for debt service savings without extending maturities. S&P Global Ratings also affirmed its '##-' and 'A+' underlying ratings (SPURs), with a stable outlook, on the authority's general revenue bonds and subordinate revenue bonds outstanding. In addition, S&P Global Ratings affirmed its '###/A-1+' ratings and SPUR on the TBTA's general revenue variable-rate bonds, series 2001B; and its '##+/A-1' ratings and SPUR on the authority's general revenue variable-rate bonds, series 2001C, 2002F, and 2005B-3. These ratings reflect...