MG0092 ***********************************************************************
MG0092  DESIGNATION -  RV 10
MG0092  PID         -  MG0092
MG0092  STATE/COUNTY-  IL/ROCK ISLAND
MG0092  USGS QUAD   -  GREEN ROCK (1992)
MG0092
MG0092                         *CURRENT SURVEY CONTROL
MG0092  ___________________________________________________________________
MG0092* NAD 83(1986)-  41 29 23.     (N)    090 22 20.     (W)     SCALED
MG0092* NAVD 88     -       177.436  (meters)     582.14   (feet)  ADJUSTED
MG0092  ___________________________________________________________________
MG0092  GEOID HEIGHT-         -32.84  (meters)                     GEOID99
MG0092  DYNAMIC HT  -         177.368 (meters)     581.91  (feet)  COMP
MG0092  MODELED GRAV-     980,236.1   (mgal)                       NAVD 88
MG0092
MG0092  VERT ORDER  -  SECOND    CLASS 0
MG0092
MG0092.The horizontal coordinates were scaled from a topographic map and have
MG0092.an estimated accuracy of +/- 6 seconds.
MG0092
MG0092.The orthometric height was determined by differential leveling
MG0092.and adjusted by the National Geodetic Survey in June 1991.
MG0092
MG0092.The geoid height was determined by GEOID99.
MG0092
MG0092.The dynamic height is computed by dividing the NAVD 88
MG0092.geopotential number by the normal gravity value computed on the
MG0092.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
MG0092.degrees latitude (g = 980.6199 gals.).
MG0092
MG0092.The modeled gravity was interpolated from observed gravity values.
MG0092
MG0092;                    North         East    Units  Estimated Accuracy
MG0092;SPC IL W     -   535,430.      682,840.      MT  (+/- 180 meters Scaled)
MG0092
MG0092                          SUPERSEDED SURVEY CONTROL
MG0092
MG0092  NGVD 29     -       177.514  (m)          582.39   (f) ADJ UNCH    2 0
MG0092
MG0092.Superseded values are not recommended for survey control.
MG0092.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
MG0092.See file dsdata.txt to determine how the superseded data were derived.
MG0092
MG0092_MARKER: R = RIVET
MG0092_SETTING: 36 = BRIDGE SEAT
MG0092_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
MG0092
MG0092  HISTORY     - Date     Condition        Recov. By
MG0092  HISTORY     - UNK      MONUMENTED       RIRR
MG0092  HISTORY     - 1935     GOOD             NGS
MG0092  HISTORY     - 19960816 MARK NOT FOUND   USPSQD
MG0092  HISTORY     - 19970917 GOOD             USPSQD
MG0092
MG0092                          STATION DESCRIPTION
MG0092
MG0092''DESCRIBED BY NATIONAL GEODETIC SURVEY 1935
MG0092''AT CARBON CLIFF.
MG0092''AT CARBON CLIFF, ROCK ISLAND COUNTY, ON THE CHICAGO, ROCK
MG0092''ISLAND AND PACIFIC RAILWAY, EAST OF THE STATION AT BRIDGE 1708
MG0092''OVER ROCK RIVER, AND IN THE TOP OF THE SOUTH END OF THE WEST
MG0092''CONCRETE BRIDGE SEAT.  A STANDARD MONEL-METAL RIVET.
MG0092
MG0092                          STATION RECOVERY (1996)
MG0092
MG0092''RECOVERY NOTE BY US POWER SQUADRON 1996
MG0092''MARK NOT FOUND.
MG0092
MG0092                          STATION RECOVERY (1997)
MG0092
MG0092''RECOVERY NOTE BY US POWER SQUADRON 1997
MG0092''RECOVERED IN GOOD CONDITION.