BM0439 ***********************************************************************
BM0439  DESIGNATION -  N 1224
BM0439  PID         -  BM0439
BM0439  STATE/COUNTY-  TX/BASTROP
BM0439  USGS QUAD   -  BASTRAP (1982)
BM0439
BM0439                         *CURRENT SURVEY CONTROL
BM0439  ___________________________________________________________________
BM0439* NAD 83(1986)-  30 03 08.     (N)    097 18 12.     (W)     SCALED
BM0439* NAVD 88     -       108.600  (meters)     356.30   (feet)  ADJUSTED
BM0439  ___________________________________________________________________
BM0439  GEOID HEIGHT-         -26.11  (meters)                     GEOID99
BM0439  DYNAMIC HT  -         108.453 (meters)     355.82  (feet)  COMP
BM0439  MODELED GRAV-     979,288.4   (mgal)                       NAVD 88
BM0439
BM0439  VERT ORDER  -  FIRST     CLASS I
BM0439
BM0439.The horizontal coordinates were scaled from a topographic map and have
BM0439.an estimated accuracy of +/- 6 seconds.
BM0439
BM0439.The orthometric height was determined by differential leveling
BM0439.and adjusted by the National Geodetic Survey in June 1991.
BM0439
BM0439.The geoid height was determined by GEOID99.
BM0439
BM0439.The dynamic height is computed by dividing the NAVD 88
BM0439.geopotential number by the normal gravity value computed on the
BM0439.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
BM0439.degrees latitude (G = 980.6199 gals.).
BM0439
BM0439.The modeled gravity was interpolated from observed gravity values.
BM0439
BM0439;                    North         East    Units  Estimated Accuracy
BM0439;SPC TX C     - 3,046,720.      992,170.      MT  (+/- 180 meters Scaled)
BM0439
BM0439                          SUPERSEDED SURVEY CONTROL
BM0439
BM0439  NGVD 29     -       108.549  (m)          356.13   (f) ADJ UNCH    1 1
BM0439
BM0439.Superseded values are not recommended for survey control.
BM0439.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
BM0439.See file dsdata.txt to determine how the superseded data were derived.
BM0439
BM0439_MARKER: DB = BENCH MARK DISK
BM0439_SETTING: 46 = COPPER-CLAD STEEL ROD W/O SLEEVE (10 FT.+)
BM0439_STAMPING: N 1224 1973
BM0439_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
BM0439
BM0439  HISTORY     - Date     Condition        Recov. By
BM0439  HISTORY     - 1973     MONUMENTED       NGS
BM0439  HISTORY     - 1978     GOOD             NGS
BM0439
BM0439                          STATION DESCRIPTION
BM0439
BM0439''DESCRIBED BY NATIONAL GEODETIC SURVEY 1973
BM0439''4.3 MI SE FROM BASTROP.
BM0439''ABOUT 4.3 MILES SOUTHEAST ALONG THE MISSOURI, KANSAS AND TEXAS
BM0439''RAILROAD FROM THE STATION AT BASTROP, 168.0 FEET SOUTHEAST OF THE
BM0439''CENTER OF A PAVED ROAD CROSSING, 36.6 FEET SOUTHWEST OF THE SOUTHWEST
BM0439''TRACK, 2.4 FEET NORTHWEST OF A TELEPHONE POLE AND IN LINE WITH A ROW
BM0439''OF POLES, 8.2 FEET NORTHEAST OF A FENCE, 0.7 MILES NORTHWEST OF B.M. J
BM0439''806, 0.5 FEET SOUTHEAST OF A METAL WITNESS POST AND ABOUT 3.0 FEET
BM0439''BELOW THE LEVEL OF THE TRACK AND IS A DISK ON TOP OF A COPPER COATED
BM0439''STEEL ROD PROJECTING 2-IN. PROTECTING A 6-IN IRON PIPE WHICH PROJECTS
BM0439''5-IN.  THE ROD WAS DRIVEN TO A REFUSAL AT A DEPTH OF 29 1/2 FEET.
BM0439
BM0439                          STATION RECOVERY (1978)
BM0439
BM0439''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978
BM0439''RECOVERED IN GOOD CONDITION.