LY0566 ***********************************************************************
LY0566  DESIGNATION -  509 PADH
LY0566  PID         -  LY0566
LY0566  STATE/COUNTY-  PA/PIKE
LY0566  USGS QUAD   -  MILFORD (1995)
LY0566
LY0566                         *CURRENT SURVEY CONTROL
LY0566  ___________________________________________________________________
LY0566* NAD 83(1986)-  41 19 36.     (N)    074 47 49.     (W)     SCALED
LY0566* NAVD 88     -       155.026  (meters)     508.61   (feet)  ADJUSTED
LY0566  ___________________________________________________________________
LY0566  GEOID HEIGHT-         -32.21  (meters)                     GEOID99
LY0566  DYNAMIC HT  -         154.962 (meters)     508.40  (feet)  COMP
LY0566  MODELED GRAV-     980,204.5   (mgal)                       NAVD 88
LY0566
LY0566  VERT ORDER  -  FIRST     CLASS II
LY0566
LY0566.The horizontal coordinates were scaled from a topographic map and have
LY0566.an estimated accuracy of +/- 6 seconds.
LY0566
LY0566.The orthometric height was determined by differential leveling
LY0566.and adjusted by the National Geodetic Survey in June 1991.
LY0566.WARNING-Repeat measurements at this control monument indicate possible
LY0566.vertical movement.
LY0566
LY0566.The geoid height was determined by GEOID99.
LY0566
LY0566.The dynamic height is computed by dividing the NAVD 88
LY0566.geopotential number by the normal gravity value computed on the
LY0566.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
LY0566.degrees latitude (g = 980.6199 gals.).
LY0566
LY0566.The modeled gravity was interpolated from observed gravity values.
LY0566
LY0566;                    North         East    Units  Estimated Accuracy
LY0566;SPC PA N     -   133,040.      847,170.      MT  (+/- 180 meters Scaled)
LY0566
LY0566                          SUPERSEDED SURVEY CONTROL
LY0566
LY0566  NGVD 29     -       155.214  (m)          509.23   (f) ADJ UNCH    1 2
LY0566
LY0566.Superseded values are not recommended for survey control.
LY0566.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
LY0566.See file dsdata.txt to determine how the superseded data were derived.
LY0566
LY0566_MARKER: DD = SURVEY DISK
LY0566_SETTING: 36 = BRIDGE
LY0566_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
LY0566
LY0566  HISTORY     - Date     Condition        Recov. By
LY0566  HISTORY     - UNK      MONUMENTED       PADH
LY0566  HISTORY     - 1956     GOOD             NGS
LY0566  HISTORY     - 1978     GOOD             NGS
LY0566
LY0566                          STATION DESCRIPTION
LY0566
LY0566''DESCRIBED BY NATIONAL GEODETIC SURVEY 1956
LY0566''AT MILFORD.
LY0566''AT MILFORD, 0.3 MILE NORTHEAST OF THE COUNTY COURTHOUSE, AT THE
LY0566''BROAD STREET BRIDGE OVER VANDEMARK CREEK, 31 YARDS NORTHEAST
LY0566''OF THE INTERSECTION OF BROAD AND SARAH STREET, ON TOP AND AT
LY0566''THE SOUTHWEST END ON THE SOUTHEAST CONCRETE HEAD WALL OF THE
LY0566''BRIDGE, 12 FEET SOUTHEAST OF THE CENTER LINE OF BROAD STREET,
LY0566''0.8 FOOT NORTHEAST OF THE SOUTHWEST END OF THE HEAD WALL AND
LY0566''3 FEET ABOVE THE LEVEL OF THE STREET.
LY0566
LY0566                          STATION RECOVERY (1978)
LY0566
LY0566''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978
LY0566''RECOVERED IN GOOD CONDITION.