1        National Geodetic Survey,   Retrieval Date = MARCH 10, 2012
 LV0636 ***********************************************************************
 LV0636  TIDAL BM    -  This is a Tidal Bench Mark.
 LV0636  DESIGNATION -  941 8767 F TIDAL
 LV0636  PID         -  LV0636
 LV0636  STATE/COUNTY-  CA/HUMBOLDT
 LV0636  USGS QUAD   -  EUREKA (1972)
 LV0636
 LV0636                         *CURRENT SURVEY CONTROL
 LV0636  ___________________________________________________________________
 LV0636* NAD 83(1986)-  40 45 58.     (N)    124 13 07.     (W)     SCALED    
 LV0636* NAVD 88     -         4.129  (meters)      13.55   (feet)  ADJUSTED  
 LV0636  ___________________________________________________________________
 LV0636  GEOID HEIGHT-         -30.91  (meters)                     GEOID09
 LV0636  DYNAMIC HT  -           4.127 (meters)      13.54  (feet)  COMP
 LV0636  MODELED GRAV-     980,203.4   (mgal)                       NAVD 88
 LV0636
 LV0636  VERT ORDER  -  FIRST     CLASS II
 LV0636
 LV0636.The horizontal coordinates were scaled from a topographic map and have
 LV0636.an estimated accuracy of +/- 6 seconds.
 LV0636.
 LV0636.The orthometric height was determined by differential leveling and
 LV0636.adjusted in June 1991.
 LV0636
 LV0636.This Tidal Bench Mark is designated as VM 1725
 LV0636.by the CENTER FOR OPERATIONAL OCEANOGRAPHIC PRODUCTS AND SERVICES.
 LV0636
 LV0636.The geoid height was determined by GEOID09.
 LV0636
 LV0636.The dynamic height is computed by dividing the NAVD 88
 LV0636.geopotential number by the normal gravity value computed on the
 LV0636.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
 LV0636.degrees latitude (g = 980.6199 gals.).
 LV0636
 LV0636.The modeled gravity was interpolated from observed gravity values.
 LV0636
 LV0636;                    North         East    Units  Estimated Accuracy
 LV0636;SPC CA 1     -   661,460.    1,812,720.      MT  (+/- 180 meters Scaled)
 LV0636
 LV0636                          SUPERSEDED SURVEY CONTROL
 LV0636
 LV0636  NGVD 29 (12/02/92)    3.106  (m)           10.19   (f) ADJUSTED    1 2
 LV0636
 LV0636.Superseded values are not recommended for survey control.
 LV0636.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 LV0636.See file dsdata.txt to determine how the superseded data were derived.
 LV0636
 LV0636_U.S. NATIONAL GRID SPATIAL ADDRESS: 10TCL971135(NAD 83)
 LV0636
 LV0636_MARKER: DJ = TIDAL STATION DISK
 LV0636_SETTING: 30 = SET IN A LIGHT STRUCTURE
 LV0636_SP_SET: SEAWALL
 LV0636_STAMPING: 8767 F 1983
 LV0636_MARK LOGO: NOS   
 LV0636_MAGNETIC: N = NO MAGNETIC MATERIAL
 LV0636_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
 LV0636
 LV0636  HISTORY     - Date     Condition        Report By
 LV0636  HISTORY     - 1983     MONUMENTED       NOS
 LV0636  HISTORY     - 19880220 GOOD             NGS
 LV0636
 LV0636                          STATION DESCRIPTION
 LV0636
 LV0636'DESCRIBED BY NATIONAL GEODETIC SURVEY 1988
 LV0636'19.1 KM (11.85 MI) SOUTHWESTERLY ALONG STATE HIGHWAY 255 FROM THE
 LV0636'JUNCTION WITH U.S. HIGHWAY 101 IN ARCATA, IN A CONCRETE SEAWALL,
 LV0636'52.6 M (172.6 FT) SOUTHWEST OF THE SOUTH CORNER OF THE U.S. COAST
 LV0636'GUARD STATION, 10.2 M (33.5 FT) EAST OF THE SOUTHEAST END OF A CHAIN
 LV0636'LINK FENCE, 5.9 M (19.4 FT) SOUTHWEST OF THE SOUTHEAST END OF A
 LV0636'WOODEN FENCE, AND 0.8 M (2.6 FT) ABOVE THE GROUND SURFACE.