HV1895 ***********************************************************************
HV1895  DESIGNATION -  NW 3
HV1895  PID         -  HV1895
HV1895  STATE/COUNTY-  DC/DISTRICT OF COLUMBIA
HV1895  USGS QUAD   -  WASHINGTON WEST (1983)
HV1895
HV1895                         *CURRENT SURVEY CONTROL
HV1895  ___________________________________________________________________
HV1895* NAD 83(1986)-  38 53 57.     (N)    077 02 16.     (W)     SCALED
HV1895* NAVD 88     -        17.513  (meters)      57.46   (feet)  ADJUSTED
HV1895  ___________________________________________________________________
HV1895  GEOID HEIGHT-         -32.02  (meters)                     GEOID99
HV1895  DYNAMIC HT  -          17.503 (meters)      57.42  (feet)  COMP
HV1895  MODELED GRAV-     980,097.5   (mgal)                       NAVD 88
HV1895
HV1895  VERT ORDER  -  FIRST     CLASS 0
HV1895
HV1895.The horizontal coordinates were scaled from a topographic map and have
HV1895.an estimated accuracy of +/- 6 seconds.
HV1895
HV1895.The orthometric height was determined by differential leveling
HV1895.and adjusted by the National Geodetic Survey in June 1991.
HV1895
HV1895.The geoid height was determined by GEOID99.
HV1895
HV1895.The dynamic height is computed by dividing the NAVD 88
HV1895.geopotential number by the normal gravity value computed on the
HV1895.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
HV1895.degrees latitude (g = 980.6199 gals.).
HV1895
HV1895.The modeled gravity was interpolated from observed gravity values.
HV1895
HV1895                          SUPERSEDED SURVEY CONTROL
HV1895
HV1895  NGVD 29     -        17.745  (m)           58.22   (f) ADJUSTED    1 0
HV1895
HV1895.Superseded values are not recommended for survey control.
HV1895.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV1895.See file dsdata.txt to determine how the superseded data were derived.
HV1895
HV1895_MARKER: DD = SURVEY DISK
HV1895_SETTING: 30 = STONE FOUNDATION FOR FENCE
HV1895_STAMPING: NW 3
HV1895_MAGNETIC: N = NO MAGNETIC MATERIAL
HV1895_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
HV1895
HV1895  HISTORY     - Date     Condition        Recov. By
HV1895  HISTORY     - UNK      MONUMENTED       PBPP
HV1895  HISTORY     - 1971     GOOD             NGS
HV1895  HISTORY     - 1974     GOOD             NGS
HV1895  HISTORY     - 1978     GOOD             NGS
HV1895  HISTORY     - 1978     GOOD             NGS
HV1895  HISTORY     - 1979     GOOD             NGS
HV1895  HISTORY     - 1984     GOOD             NGS
HV1895  HISTORY     - 19920615 GOOD             NGS
HV1895
HV1895                          STATION DESCRIPTION
HV1895
HV1895''DESCRIBED BY NATIONAL GEODETIC SURVEY 1971
HV1895''AT WASHINGTON.
HV1895''AT WASHINGTON, D.C., ABOUT 0.1 MILE NORTHWEST OF THE WHITE
HV1895''HOUSE, AT THE NORTHEAST CORNER OF A METAL FENCE AROUND THE OLD
HV1895''EXECUTIVE OFFICE BUILDING, SET IN THE TOP OF THE STONE FOUNDATION
HV1895''FOR THE FENCE, 41 FEET WEST OF THE CENTER OF A METAL GATE
HV1895''ACROSS WEST EXECUTIVE AVENUE, 36.0 FEET SOUTH OF THE SOUTH CURB
HV1895''OF PENNSYLVANIA AVENUE, 0.8 FOOT WEST OF THE WEST FACE OF THE
HV1895''STONE CORNER FENCE POST, AND ABOUT 1 1/2 FEET ABOVE THE LEVEL
HV1895''OF THE SIDEWALK.
HV1895
HV1895                          STATION RECOVERY (1974)
HV1895
HV1895''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1974
HV1895''RECOVERED IN GOOD CONDITION.
HV1895
HV1895                          STATION RECOVERY (1978)
HV1895
HV1895''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978
HV1895''RECOVERED IN GOOD CONDITION.
HV1895
HV1895                          STATION RECOVERY (1978)
HV1895
HV1895''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978
HV1895''RECOVERED IN GOOD CONDITION.
HV1895
HV1895                          STATION RECOVERY (1979)
HV1895
HV1895''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1979
HV1895''RECOVERED IN GOOD CONDITION.
HV1895
HV1895                          STATION RECOVERY (1984)
HV1895
HV1895''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1984
HV1895''RECOVERED IN GOOD CONDITION.
HV1895
HV1895                          STATION RECOVERY (1992)
HV1895
HV1895''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1992
HV1895''IN WASHINGTON, D.C., 0.2 KM (0.10 MI) NORTHWEST OF THE WHITE HOUSE, AT
HV1895''THE NORTHEAST CORNER OF A METAL FENCE SURROUNDING THE OLD EXECUTIVE
HV1895''OFFICE BUILDING, SET IN THE TOP OF THE STONE FOUNDATION FOR THE
HV1895''FENCE, 12.5 M (41.0 FT) WEST OF THE CENTER OF A GATE ACROSS WEST
HV1895''EXECUTIVE AVENUE, 11.0 M (36.1 FT) SOUTH OF THE SOUTH CURB OF
HV1895''PENNSYLVANIA AVENUE, 0.5 M (1.6 FT) ABOVE THE LEVEL OF THE SIDEWALK,
HV1895''AND 0.3 M (1.0 FT) WEST OF THE WEST FACE OF THE FENCE CORNER POST.