Location of Gage :
Located river side of Algiers Lock near river mile 88.3.
Vertical datum set to NAVD88 (2004.65) on 19Sep2007;
prior historic stage data is relative to datum NGVD29.
To adjust historic data (from 08Jun1984 to 19Sep2007) to NAVD88 (2004.65), subtract 0.64 feet.
To adjust NAVD88 (2004.65) data to NAVD88 (2009.55), subtract 0.11 feet.
To adjust NAVD88 (2009.55) values to 2007 Low Water Reference Plane (LWRP) datum relative to NAVD88, subtract 0.5 ft.
** Raw data, subject to change **