AW6880 ***********************************************************************
AW6880  DESIGNATION -  TT 18 WWF USGS 1953
AW6880  PID         -  AW6880
AW6880  STATE/COUNTY-  TX/FORT BEND
AW6880  USGS QUAD   -  GUY (1981)
AW6880
AW6880                         *CURRENT SURVEY CONTROL
AW6880  ___________________________________________________________________
AW6880* NAD 83(1993)-  29 20 18.12690(N)    095 51 22.64422(W)     ADJUSTED
AW6880* NAVD 88     -        22.64   (+/-2cm)      74.3    (feet)  VERTCON
AW6880  ___________________________________________________________________
AW6880  LAPLACE CORR-           0.57  (seconds)                    DEFLEC99
AW6880  GEOID HEIGHT-         -27.03  (meters)                     GEOID99
AW6880
AW6880  HORZ ORDER  -  SECOND
AW6880  VERT ORDER  -  THIRD ? (See Below)
AW6880
AW6880.The horizontal coordinates were established by classical geodetic methods
AW6880.and adjusted by the National Geodetic Survey in February 1996.
AW6880
AW6880.The NAVD 88 height was computed by applying the VERTCON shift value to
AW6880.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
AW6880.The vertical order pertains to the superseded datum.
AW6880
AW6880.The Laplace correction was computed from DEFLEC99 derived deflections.
AW6880
AW6880.The geoid height was determined by GEOID99.
AW6880
AW6880;                    North         East     Units   Scale      Converg.
AW6880;SPC TXSC     - 4,170,900.352   905,238.204   MT  0.99986325 +1 32 24.5
AW6880;UTM  15      - 3,248,863.936   222,648.274   MT  1.00054930 -1 24 01.4
AW6880
AW6880                          SUPERSEDED SURVEY CONTROL
AW6880
AW6880  NAD 83(1986)-  29 20 18.13966(N)    095 51 22.62759(W) AD(       ) 2
AW6880  NAD 27      -  29 20 17.25700(N)    095 51 21.79900(W) AD(       ) 2
AW6880  NGVD 29     -        22.64   (m)           74.3    (f) LEVELING    3
AW6880
AW6880.Superseded values are not recommended for survey control.
AW6880.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AW6880.See file dsdata.txt to determine how the superseded data were derived.
AW6880
AW6880_MARKER: DB = BENCH MARK DISK
AW6880_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
AW6880_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
AW6880+STABILITY: SURFACE MOTION
AW6880
AW6880  HISTORY     - Date     Condition        Recov. By
AW6880  HISTORY     - 1953     MONUMENTED       USGS
AW6880  HISTORY     - 19980110 GOOD             USPSQD
AW6880
AW6880                          STATION DESCRIPTION
AW6880
AW6880''DESCRIBED BY US GEOLOGICAL SURVEY 1953
AW6880''B.M. TT18 WWF (USGS) WAS USED AS THE AZIMUTH MARK AND A
AW6880''TRAVERSE CONNECTION WAS MADE.  IT IS A STANDARD U.S.G.S.
AW6880''BENCH MARK DISK SET IN A 6 INCH CIRCULAR CONCRETE POST, 69.5
AW6880''FEET SOUTH OF THE CENTER OF FARM ROAD NO. 442, 60.3 FEET EAST
AW6880''OF THE CENTER OF A CHURCHYARD DRIVEWAY, 18.0 FEET SOUTH
AW6880''OF A FENCE CORNER AND 1.0 FOOT WEST OF A FENCE.  IT PROJECTS
AW6880''6 INCHES AND IS STAMPED TT 18 WWF 1951.
AW6880''
AW6880''TO REACH THE STATION FROM THE RAILROAD DEPOT IN BOLING, GO
AW6880''SMALL WHITE CHURCH ON THE RIGHT.
AW6880
AW6880                          STATION RECOVERY (1998)
AW6880
AW6880''RECOVERY NOTE BY US POWER SQUADRON 1998
AW6880''RECOVERED IN GOOD CONDITION.