SOUNDING_FREQUENCY==400KHZ
SURVEY_TYPE==MB
SURVEY_CREW==PM/SP
VESSEL_NAME==OB-167
SEA_CONDITION==CALM
GAGE_READING==7.43 LWRP07 
PLOTTED_BY==BD
CHECKED_BY==AO
NOTES:
SURVEY RAN USING C4GNET VRS RTN  
MB = 10X10 BIN
GAGE REFERENCED, HARVEY LOCK STAFF (01320)
@0815 9.00 (0.0 GAGE) -1.43 = 7.57 LWRP07
FLOAT CHECK @ HARVEY LOCK
@0815 8.30 NAVD88, USED -0.73 TIDE 
OFFSET TO MATCH HARVEY LWRP07 GAGE.
WWW.RIVERGAGES.COM 
MISSISSIPPI RIVER AT IHNC LOCK (01340)
IHNC LOCK GAGE DOWN
FLOAT CHECK AT IHNC LOCK 7.90 = 7.29 LWRP07
INTERPOLATED GAGE AT HARBOR 3 =  7.43 LWRP07
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