Location of Gage :

Located on Mississippi River side of Harvey Lock at river mile 98.3.

Adjustment for vertical datum NAVD88 (2009.55):  -0.83 ft. 
(e.g. for data relative to NAVD88 subtract 0.83 ft.)

 To adjust NAVD88 (2009.55) values to 2007 Low Water Reference Plane (LWRP) datum relative to NAVD88, subtract 0.6 ft.

** Raw data, subject to change **