LC0681 ***********************************************************************
LC0681  DESIGNATION -  G 269
LC0681  PID         -  LC0681
LC0681  STATE/COUNTY-  IL/MCLEAN
LC0681  USGS QUAD   -  NORMAL EAST (1981)
LC0681
LC0681                         *CURRENT SURVEY CONTROL
LC0681  ___________________________________________________________________
LC0681* NAD 83(1986)-  40 32 19.     (N)    088 59 12.     (W)     SCALED
LC0681* NAVD 88     -       265.501  (meters)     871.06   (feet)  ADJUSTED
LC0681  ___________________________________________________________________
LC0681  GEOID HEIGHT-         -32.05  (meters)                     GEOID99
LC0681  DYNAMIC HT  -         265.378 (meters)     870.66  (feet)  COMP
LC0681  MODELED GRAV-     980,152.3   (mgal)                       NAVD 88
LC0681
LC0681  VERT ORDER  -  FIRST     CLASS I
LC0681
LC0681.The horizontal coordinates were scaled from a topographic map and have
LC0681.an estimated accuracy of +/- 6 seconds.
LC0681
LC0681.The orthometric height was determined by differential leveling
LC0681.and adjusted by the National Geodetic Survey in June 1991.
LC0681
LC0681.The geoid height was determined by GEOID99.
LC0681
LC0681.The dynamic height is computed by dividing the NAVD 88
LC0681.geopotential number by the normal gravity value computed on the
LC0681.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
LC0681.degrees latitude (g = 980.6199 gals.).
LC0681
LC0681.The modeled gravity was interpolated from observed gravity values.
LC0681
LC0681;                    North         East    Units  Estimated Accuracy
LC0681;SPC IL E     -   430,010.      244,650.      MT  (+/- 180 meters Scaled)
LC0681
LC0681                          SUPERSEDED SURVEY CONTROL
LC0681
LC0681  NGVD 29     -       265.554  (m)          871.24   (f) ADJ UNCH    1 1
LC0681
LC0681.Superseded values are not recommended for survey control.
LC0681.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
LC0681.See file dsdata.txt to determine how the superseded data were derived.
LC0681
LC0681_MARKER: DB = BENCH MARK DISK
LC0681_SETTING: 30 = CONCRETE PILLAR
LC0681_STAMPING: G 269 1969
LC0681_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
LC0681
LC0681  HISTORY     - Date     Condition        Recov. By
LC0681  HISTORY     - 1969     MONUMENTED       CGS
LC0681
LC0681                          STATION DESCRIPTION
LC0681
LC0681''DESCRIBED BY COAST AND GEODETIC SURVEY 1969
LC0681''2.1 MI N FROM NORMAL.
LC0681''ABOUT 2.1 MILES NORTH ALONG THE ILLINOIS CENTRAL RAILROAD FROM
LC0681''THE STATION AT NORMAL, IN SECTION 16, T 24 N, R 2 E, 5 RAILS
LC0681''SOUTH OF MILEPOST 800, 25 FEET WEST OF THE WEST RAIL, SET VERTICALLY
LC0681''IN THE NORTH FACE OF A CONCRETE PILLAR FOR THE MORE NORTHERLY
LC0681''OF 2 RAILROAD UNDERPASSES FOR INTERSTATE HIGHWAY 55, AND ABOUT
LC0681''5 1/2 FEET ABOVE THE LEVEL OF THE TRACK.