Datum of gage is 2.04 ft above NAVD of 1988. Historically, datum of gage published as NGVD of 1929. However, there is uncertainty as to the exact source of this datum which may differ from true NGVD29 by almost 2 ft.
Skip to main content
Official websites use .gov
A .gov website belongs to an official government organization in the
United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
