EH1380 ***********************************************************************
EH1380  DESIGNATION -  U 115
EH1380  PID         -  EH1380
EH1380  STATE/COUNTY-  AR/ARKANSAS
EH1380  USGS QUAD   -  DE WITT (1969)
EH1380
EH1380                         *CURRENT SURVEY CONTROL
EH1380  ___________________________________________________________________
EH1380* NAD 83(1986)-  34 17 54.     (N)    091 20 58.     (W)     SCALED
EH1380* NAVD 88     -        56.332  (meters)     184.82   (feet)  ADJUSTED
EH1380  ___________________________________________________________________
EH1380  GEOID HEIGHT-         -26.35  (meters)                     GEOID99
EH1380  DYNAMIC HT  -          56.277 (meters)     184.64  (feet)  COMP
EH1380  MODELED GRAV-     979,665.6   (mgal)                       NAVD 88
EH1380
EH1380  VERT ORDER  -  FIRST     CLASS II
EH1380
EH1380.The horizontal coordinates were scaled from a topographic map and have
EH1380.an estimated accuracy of +/- 6 seconds.
EH1380
EH1380.The orthometric height was determined by differential leveling
EH1380.and adjusted by the National Geodetic Survey in August 1993.
EH1380.WARNING-Repeat measurements at this control monument indicate possible
EH1380.vertical movement.
EH1380
EH1380.The geoid height was determined by GEOID99.
EH1380
EH1380.The dynamic height is computed by dividing the NAVD 88
EH1380.geopotential number by the normal gravity value computed on the
EH1380.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
EH1380.degrees latitude (G = 980.6199 gals.).
EH1380
EH1380.The modeled gravity was interpolated from observed gravity values.
EH1380
EH1380;                    North         East    Units  Estimated Accuracy
EH1380;SPC AR S     -   581,160.      459,890.      MT  (+/- 180 meters Scaled)
EH1380
EH1380                          SUPERSEDED SURVEY CONTROL
EH1380
EH1380  NGVD 29     -        56.358  (m)          184.90   (f) ADJUSTED    1 2
EH1380
EH1380.Superseded values are not recommended for survey control.
EH1380.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
EH1380.See file dsdata.txt to determine how the superseded data were derived.
EH1380
EH1380_MARKER: DB = BENCH MARK DISK
EH1380_SETTING: 30 = CULVERT
EH1380_STAMPING: U 115 1954
EH1380_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
EH1380
EH1380  HISTORY     - Date     Condition        Recov. By
EH1380  HISTORY     - 1954     MONUMENTED       CGS
EH1380  HISTORY     - 1976     GOOD             NGS
EH1380
EH1380                          STATION DESCRIPTION
EH1380
EH1380''DESCRIBED BY COAST AND GEODETIC SURVEY 1954
EH1380''1.0 MI W FROM DEWITT.
EH1380''1.0 MILE WEST ALONG STATE HIGHWAY 152 FROM THE COURTHOUSE AT DEWITT,
EH1380''0.45 MILE WEST OF THE HIGH SCHOOL, 18 FEET NORTH OF THE CENTER LINE OF
EH1380''THE HIGHWAY, 20 FEET EAST OF THE EXTENDED CENTER LINE OF A ROAD
EH1380''LEADING SOUTH, SET IN THE TOP OF THE WEST END OF THE NORTH HEADWALL OF
EH1380''A CONCRETE PIPE CULVERT.
EH1380
EH1380                          STATION RECOVERY (1976)
EH1380
EH1380''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976
EH1380''RECOVERED IN GOOD CONDITION.