Datum of gage (Displaying as NGVD29, also known as Hetch Hetchy Datum) is approximately 1.83 ft below NGVD of 1929 and 1.70 ft above NAVD of 1988.
Datum of gage (Displaying as NGVD29, also known as Hetch Hetchy Datum) is approximately 1.83 ft below NGVD of 1929 and 1.70 ft above NAVD of 1988.