DN0683 ***********************************************************************
DN0683  DESIGNATION -  M 949
DN0683  PID         -  DN0683
DN0683  STATE/COUNTY-  TX/DENTON
DN0683  USGS QUAD   -  DENTON WEST (1974)
DN0683
DN0683                         *CURRENT SURVEY CONTROL
DN0683  ___________________________________________________________________
DN0683* NAD 83(1986)-  33 13 48.     (N)    097 10 43.     (W)     SCALED
DN0683* NAVD 88     -       210.433  (meters)     690.40   (feet)  ADJUSTED
DN0683  ___________________________________________________________________
DN0683  GEOID HEIGHT-         -26.66  (meters)                     GEOID99
DN0683  DYNAMIC HT  -         210.196 (meters)     689.62  (feet)  COMP
DN0683  MODELED GRAV-     979,507.1   (mgal)                       NAVD 88
DN0683
DN0683  VERT ORDER  -  SECOND    CLASS 0
DN0683
DN0683.The horizontal coordinates were scaled from a topographic map and have
DN0683.an estimated accuracy of +/- 6 seconds.
DN0683
DN0683.The orthometric height was determined by differential leveling
DN0683.and adjusted by the National Geodetic Survey in June 1991.
DN0683
DN0683.The geoid height was determined by GEOID99.
DN0683
DN0683.The dynamic height is computed by dividing the NAVD 88
DN0683.geopotential number by the normal gravity value computed on the
DN0683.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
DN0683.degrees latitude (G = 980.6199 gals.).
DN0683
DN0683.The modeled gravity was interpolated from observed gravity values.
DN0683
DN0683;                    North         East    Units  Estimated Accuracy
DN0683;SPC TXNC     - 2,174,130.      723,150.      MT  (+/- 180 meters Scaled)
DN0683
DN0683                          SUPERSEDED SURVEY CONTROL
DN0683
DN0683  NGVD 29     -       210.407  (m)          690.31   (f) ADJ UNCH    2 0
DN0683
DN0683.Superseded values are not recommended for survey control.
DN0683.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DN0683.See file dsdata.txt to determine how the superseded data were derived.
DN0683
DN0683_MARKER: DB = BENCH MARK DISK
DN0683_SETTING: 30 = CULVERT
DN0683_STAMPING: M 949 1946
DN0683_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
DN0683
DN0683  HISTORY     - Date     Condition        Recov. By
DN0683  HISTORY     - 1946     MONUMENTED       CGS
DN0683  HISTORY     - 1960     GOOD             NGS
DN0683  HISTORY     - 19950630 MARK NOT FOUND   USPSQD
DN0683  HISTORY     - 19980214 GOOD             USPSQD
DN0683
DN0683                          STATION DESCRIPTION
DN0683
DN0683''DESCRIBED BY NATIONAL GEODETIC SURVEY 1960
DN0683''3.7 MI W FROM DENTON.
DN0683''3.7 MILES NORTHWEST OF DENTON, DENTON COUNTY.  THIS BENCH MARK MAY BE
DN0683''REACHED FROM THE POST OFFICE BY GOING 0.1 MILE WEST ALONG MCKINNEY
DN0683''STREET, THENCE 1.0 MILE NORTH ALONG U.S. HIGHWAY 77, AND THENCE 2.6
DN0683''MILES WEST ALONG STATE HIGHWAY 24.  IT IS AT A 4- BY 6-FOOT CONCRETE
DN0683''CULVERT, IN THE TOP OF THE WEST END OF THE NORTH HEADWALL, 28 FEET
DN0683''NORTH OF THE CENTERLINE OF THE HIGHWAY, AND 3 FEET LOWER THAN THE
DN0683''HIGHWAY.  A STANDARD DISK, STAMPED M 949 1946.
DN0683
DN0683                          STATION RECOVERY (1995)
DN0683
DN0683''RECOVERY NOTE BY US POWER SQUADRON 1995
DN0683''MARK NOT FOUND.
DN0683
DN0683                          STATION RECOVERY (1998)
DN0683
DN0683''RECOVERY NOTE BY US POWER SQUADRON 1998
DN0683''RECOVERED IN GOOD CONDITION.