tidealmanac
No predictions loaded for 1999. This site serves NOAA predictions from its own store, and this period has not been fetched for I-526 bridge yet. Nothing is estimated or interpolated in its place. NOAA's own page for the station has the official table: tidesandcurrents.noaa.gov.

tidealmanac.site/us/sc/i-526-bridge-8665099/1999

I-526 bridge, SC tide table 1999 (printable) · Tide Almanac