...September 10, 2020 SAN FRANCISCO (S&P Global Ratings) Sept. 10, 2020--S&P Global Ratings assigned its '###' long-term rating to San Francisco City and County's $135.8 million series 2020B (Proposition A [2014]) general obligation (GO) bonds for transportation and road improvements. At the same time, S&P Global Ratings affirmed the following ratings on debt associated with the city and county: - '###' long-term rating on the city and county's existing GO bonds; - '##+' long-term rating and underlying rating (SPUR) on the city and county's appropriation obligations; - '###/A-1+' joint-support rating on the city and county's series 2008-1 and 2008-2 variable-rate lease revenue obligations; and - 'A-1+' short-term rating on the city and county's series 1, 1-T, 2, and 2-T commercial paper (CP). The outlook, where applicable, is stable. These issue ratings are based on our view that the city and county's general creditworthiness is above that of the U.S. sovereign. We do not expect the city and...