LC0685 ***********************************************************************
LC0685  DESIGNATION -  N 172
LC0685  PID         -  LC0685
LC0685  STATE/COUNTY-  IL/MCLEAN
LC0685  USGS QUAD   -  NORMAL EAST (1981)
LC0685
LC0685                         *CURRENT SURVEY CONTROL
LC0685  ___________________________________________________________________
LC0685* NAD 83(1986)-  40 30 11.     (N)    088 59 01.     (W)     SCALED
LC0685* NAVD 88     -       235.943  (meters)     774.09   (feet)  ADJUSTED
LC0685  ___________________________________________________________________
LC0685  GEOID HEIGHT-         -32.06  (meters)                     GEOID99
LC0685  DYNAMIC HT  -         235.832 (meters)     773.73  (feet)  COMP
LC0685  MODELED GRAV-     980,148.5   (mgal)                       NAVD 88
LC0685
LC0685  VERT ORDER  -  FIRST     CLASS I
LC0685
LC0685.The horizontal coordinates were scaled from a topographic map and have
LC0685.an estimated accuracy of +/- 6 seconds.
LC0685
LC0685.The orthometric height was determined by differential leveling
LC0685.and adjusted by the National Geodetic Survey in June 1991.
LC0685
LC0685.The geoid height was determined by GEOID99.
LC0685
LC0685.The dynamic height is computed by dividing the NAVD 88
LC0685.geopotential number by the normal gravity value computed on the
LC0685.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
LC0685.degrees latitude (g = 980.6199 gals.).
LC0685
LC0685.The modeled gravity was interpolated from observed gravity values.
LC0685
LC0685;                    North         East    Units  Estimated Accuracy
LC0685;SPC IL E     -   426,060.      244,880.      MT  (+/- 180 meters Scaled)
LC0685
LC0685                          SUPERSEDED SURVEY CONTROL
LC0685
LC0685  NGVD 29     -       236.000  (m)          774.28   (f) ADJ UNCH    1 1
LC0685
LC0685.Superseded values are not recommended for survey control.
LC0685.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
LC0685.See file dsdata.txt to determine how the superseded data were derived.
LC0685
LC0685_MARKER: DB = BENCH MARK DISK
LC0685_SETTING: 30 = CULVERT
LC0685_STAMPING: N 172 1954
LC0685_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
LC0685
LC0685  HISTORY     - Date     Condition        Recov. By
LC0685  HISTORY     - 1954     MONUMENTED       CGS
LC0685  HISTORY     - 1969     GOOD             NGS
LC0685
LC0685                          STATION DESCRIPTION
LC0685
LC0685''DESCRIBED BY NATIONAL GEODETIC SURVEY 1969
LC0685''0.4 MI S FROM NORMAL.
LC0685''ABOUT 0.45 MILE SOUTH ALONG THE ILLINOIS CENTRAL RAILROAD FROM
LC0685''THE STATION AT NORMAL, OR ABOUT 0.65 MILE EAST ALONG E. WASHINGTON
LC0685''STREET FROM THE MCLEAN  COUNTY COURTHOUSE AT BLOOMINGTON, THENCE
LC0685''1.6 MILES NORTH ALONG THE ILLINOIS CENTRAL RAILROAD, 0.15 MILE
LC0685''NORTH OF A SIDETRACK WHICH LEADS EAST, 0.15 MILE SOUTH OF A
LC0685''CROSSING OF THE RAILROAD AND VERNON STREET, 25 FEET WEST OF THE
LC0685''WEST RAIL, SET IN THE TOP OF THE NORTH END OF THE WEST CONCRETE
LC0685''HEADWALL OF A DOUBLE-CHANNEL CONCRETE CULVERT, AND ABOUT 12 FEET
LC0685''BELOW THE LEVEL OF THE TRACK.  SEC 28, T24N, R2E.