1        National Geodetic Survey,   Retrieval Date = AUGUST  1, 2005
 HT1447 ***********************************************************************
 HT1447  DESIGNATION -  P 245
 HT1447  PID         -  HT1447
 HT1447  STATE/COUNTY-  CA/SAN MATEO
 HT1447  USGS QUAD   -  HALF MOON BAY (1997)
 HT1447
 HT1447                         *CURRENT SURVEY CONTROL
 HT1447  ___________________________________________________________________
 HT1447* NAD 83(1986)-  37 28 38.     (N)    122 26 25.     (W)     SCALED    
 HT1447* NAVD 88     -        13.907  (meters)      45.63   (feet)  ADJUSTED  
 HT1447  ___________________________________________________________________
 HT1447  GEOID HEIGHT-         -32.81  (meters)                     GEOID03
 HT1447  DYNAMIC HT  -          13.898 (meters)      45.60  (feet)  COMP
 HT1447  MODELED GRAV-     979,966.0   (mgal)                       NAVD 88
 HT1447  OBS GRAVITY -     979,961.5   (mgal)                       GRAV_OBS
 HT1447
 HT1447  VERT ORDER  -  FIRST     CLASS I
 HT1447
 HT1447.The horizontal coordinates were scaled from a topographic map and have
 HT1447.an estimated accuracy of +/- 6 seconds.
 HT1447
 HT1447.The orthometric height was determined by differential leveling
 HT1447.and adjusted by the National Geodetic Survey in June 1991.
 HT1447
 HT1447.The geoid height was determined by GEOID03.
 HT1447
 HT1447.The dynamic height is computed by dividing the NAVD 88
 HT1447.geopotential number by the normal gravity value computed on the
 HT1447.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
 HT1447.degrees latitude (g = 980.6199 gals.).
 HT1447
 HT1447.The modeled gravity was interpolated from observed gravity values.
 HT1447.The observed gravity was obtained from relative gravimeter ties
 HT1447.to the IGSN71 gravity network.
 HT1447
 HT1447;                    North         East    Units  Estimated Accuracy
 HT1447;SPC CA 3     -   610,230.    1,828,400.      MT  (+/- 180 meters Scaled)
 HT1447
 HT1447                          SUPERSEDED SURVEY CONTROL
 HT1447
 HT1447  NGVD 29 (10/21/93)   13.056  (m)           42.83   (f) ADJUSTED    1 1
 HT1447
 HT1447.Superseded values are not recommended for survey control.
 HT1447.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 HT1447.See file dsdata.txt to determine how the superseded data were derived.
 HT1447
 HT1447_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SEG494479(NAD 83)
 HT1447_MARKER: DB = BENCH MARK DISK
 HT1447_SETTING: 30 = SET IN A LIGHT STRUCTURE
 HT1447_SP_SET: CULVERT
 HT1447_STAMPING: P 245 1962
 HT1447_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
 HT1447_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR
 HT1447+SATELLITE: SATELLITE OBSERVATIONS - July 09, 2005
 HT1447
 HT1447  HISTORY     - Date     Condition        Report By
 HT1447  HISTORY     - 1962     MONUMENTED       CGS
 HT1447  HISTORY     - 1972     GOOD             NGS
 HT1447  HISTORY     - 1978     GOOD             NGS
 HT1447  HISTORY     - 20050709 GOOD             GEOCAC
 HT1447
 HT1447                          STATION DESCRIPTION
 HT1447
 HT1447'DESCRIBED BY NATIONAL GEODETIC SURVEY 1972
 HT1447'1 MI N FROM HALF MOON BAY.
 HT1447'1.05 MILES NORTH ALONG STATE HIGHWAY 1 FROM THE JUNCTION OF KELLY
 HT1447'AVENUE AT HALF MOON BAY, 0.1 MILE NORTH OF THE JUNCTION OF GRAND
 HT1447'VIEW BOULEVARD, 0.05 MILE NORTH OF THE JUNCTION OF KEHOE AVENUE,
 HT1447'IN THE TOP AND 4.0 FEET NORTH OF THE SOUTH END OF THE WEST
 HT1447'CONCRETE HEAD WALL OF 24-INCH CONCRETE PIPE CULVERT 29/79, 37 1/2
 HT1447'FEET WEST OF THE CENTER LINE OF THE HIGHWAY, AND ABOUT 3 FEET
 HT1447'LOWER THAN THE HIGHWAY.
 HT1447
 HT1447                          STATION RECOVERY (1978)
 HT1447
 HT1447'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978
 HT1447'RECOVERED IN GOOD CONDITION.
 HT1447
 HT1447                          STATION RECOVERY (2005)
 HT1447
 HT1447'RECOVERY NOTE BY GEOCACHING 2005 (HMT)
 HT1447'RECOVERED IN GOOD CONDITION.