1 National Geodetic Survey, Retrieval Date = MARCH 10, 2012 LV0635 *********************************************************************** LV0635 TIDAL BM - This is a Tidal Bench Mark. LV0635 DESIGNATION - 941 8767 E TIDAL LV0635 PID - LV0635 LV0635 STATE/COUNTY- CA/HUMBOLDT LV0635 USGS QUAD - EUREKA (1972) LV0635 LV0635 *CURRENT SURVEY CONTROL LV0635 ___________________________________________________________________ LV0635* NAD 83(1986)- 40 46 00. (N) 124 13 09. (W) SCALED LV0635* NAVD 88 - 3.592 (meters) 11.78 (feet) ADJUSTED LV0635 ___________________________________________________________________ LV0635 GEOID HEIGHT- -30.91 (meters) GEOID09 LV0635 DYNAMIC HT - 3.591 (meters) 11.78 (feet) COMP LV0635 MODELED GRAV- 980,203.6 (mgal) NAVD 88 LV0635 LV0635 VERT ORDER - FIRST CLASS II LV0635 LV0635.The horizontal coordinates were scaled from a topographic map and have LV0635.an estimated accuracy of +/- 6 seconds. LV0635. LV0635.The orthometric height was determined by differential leveling and LV0635.adjusted in June 1991. LV0635 LV0635.This Tidal Bench Mark is designated as VM 1724 LV0635.by the CENTER FOR OPERATIONAL OCEANOGRAPHIC PRODUCTS AND SERVICES. LV0635 LV0635.The geoid height was determined by GEOID09. LV0635 LV0635.The dynamic height is computed by dividing the NAVD 88 LV0635.geopotential number by the normal gravity value computed on the LV0635.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 LV0635.degrees latitude (g = 980.6199 gals.). LV0635 LV0635.The modeled gravity was interpolated from observed gravity values. LV0635 LV0635; North East Units Estimated Accuracy LV0635;SPC CA 1 - 661,530. 1,812,670. MT (+/- 180 meters Scaled) LV0635 LV0635 SUPERSEDED SURVEY CONTROL LV0635 LV0635 NGVD 29 (12/02/92) 2.569 (m) 8.43 (f) ADJUSTED 1 2 LV0635 LV0635.Superseded values are not recommended for survey control. LV0635.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. LV0635.See file dsdata.txt to determine how the superseded data were derived. LV0635 LV0635_U.S. NATIONAL GRID SPATIAL ADDRESS: 10TCL971135(NAD 83) LV0635 LV0635_MARKER: DJ = TIDAL STATION DISK LV0635_SETTING: 35 = SET IN A MAT FOUNDATION OR CONCRETE SLAB OTHER THAN LV0635+WITH SETTING: PAVEMENT LV0635_SP_SET: CONCRETE PAD LV0635_STAMPING: 8767 E 1983 LV0635_MARK LOGO: NOS LV0635_MAGNETIC: N = NO MAGNETIC MATERIAL LV0635_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO LV0635+STABILITY: SURFACE MOTION LV0635 LV0635 HISTORY - Date Condition Report By LV0635 HISTORY - 1983 MONUMENTED NOS LV0635 HISTORY - 19880220 GOOD NGS LV0635 LV0635 STATION DESCRIPTION LV0635 LV0635'DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 LV0635'19.1 KM (11.85 MI) SOUTHWESTERLY ALONG STATE HIGHWAY 255 FROM THE LV0635'JUNCTION WITH U.S. HIGHWAY 101 IN ARCATA, IN THE NORTH CORNER OF A LV0635'10 BY 10 FOOT CONCRETE PAD OVER A FUEL STORAGE TANK, 49.6 M (162.7 LV0635'FT) WEST OF THE WEST CORNER OF THE U.S. COAST GUARD STATION, 14.3 M LV0635'(46.9 FT) EAST OF THE SOUTH CORNER OF THE MOST SOUTHWESTERLY 1 OF 2 LV0635'PARKING LOTS, 6.5 M (21.3 FT) SOUTHEAST OF THE SOUTHEAST CURB OF THE LV0635'PARKING LOT, 4.3 M (14.1 FT) NORTHEAST OF A FENCE, AND LEVEL WITH THE LV0635'GROUND SURFACE.