NGVD 1929 Conversion to NAVD 1988

EC Item B11

Community officials and the NFIP use the newer, more accurate elevation datum to consistently assess risk for buildings and to complete flood insurance ratings. NAVD 1988 is the newer elevation datum.

An easy way to convert BFE data is through the National Geodetic Survey (NGS) online tool known as VERTCON. Select this link to view and use the VERTCON site. You can also contact the appropriate floodplain administrator for guidance.

 

A graphic of a form with the word FIRM at the top with several lines beneath it indicating text. On top of the form is a banner, placed diagonally, with the word NEW written inside of it