LC0421 ***********************************************************************
LC0421  DESIGNATION -  P
LC0421  PID         -  LC0421
LC0421  STATE/COUNTY-  IL/MCLEAN
LC0421  USGS QUAD   -  BLOOMINGTON EAST (1981)
LC0421
LC0421                         *CURRENT SURVEY CONTROL
LC0421  ___________________________________________________________________
LC0421* NAD 83(1986)-  40 28 47.     (N)    088 59 37.     (W)     SCALED
LC0421* NAVD 88     -       252.646  (meters)     828.89   (feet)  ADJUSTED
LC0421  ___________________________________________________________________
LC0421  GEOID HEIGHT-         -32.08  (meters)                     GEOID99
LC0421  DYNAMIC HT  -         252.528 (meters)     828.50  (feet)  COMP
LC0421  MODELED GRAV-     980,149.7   (mgal)                       NAVD 88
LC0421
LC0421  VERT ORDER  -  FIRST     CLASS II
LC0421
LC0421.The horizontal coordinates were scaled from a topographic map and have
LC0421.an estimated accuracy of +/- 6 seconds.
LC0421
LC0421.The orthometric height was determined by differential leveling
LC0421.and adjusted by the National Geodetic Survey in June 1991.
LC0421.WARNING-Repeat measurements at this control monument indicate possible
LC0421.vertical movement.
LC0421
LC0421.The geoid height was determined by GEOID99.
LC0421
LC0421.The dynamic height is computed by dividing the NAVD 88
LC0421.geopotential number by the normal gravity value computed on the
LC0421.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
LC0421.degrees latitude (g = 980.6199 gals.).
LC0421
LC0421.The modeled gravity was interpolated from observed gravity values.
LC0421
LC0421;                    North         East    Units  Estimated Accuracy
LC0421;SPC IL E     -   423,480.      244,010.      MT  (+/- 180 meters Scaled)
LC0421
LC0421                          SUPERSEDED SURVEY CONTROL
LC0421
LC0421  NGVD 29     -       252.705  (m)          829.08   (f) ADJ UNCH    1 2
LC0421
LC0421.Superseded values are not recommended for survey control.
LC0421.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
LC0421.See file dsdata.txt to determine how the superseded data were derived.
LC0421
LC0421_MARKER: DB = BENCH MARK DISK
LC0421_SETTING: 40 = FOUNDATION WALL
LC0421_STAMPING: P 829.250
LC0421_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
LC0421+STABILITY: POSITION/ELEVATION WELL
LC0421
LC0421  HISTORY     - Date     Condition        Recov. By
LC0421  HISTORY     - UNK      MONUMENTED       USGS
LC0421  HISTORY     - 1969     GOOD             NGS
LC0421  HISTORY     - 1986     GOOD             NGS
LC0421
LC0421                          STATION DESCRIPTION
LC0421
LC0421''DESCRIBED BY NATIONAL GEODETIC SURVEY 1969
LC0421''AT BLOOMINGTON.
LC0421''AT BLOOMINGTON, SET VERTICALLY IN THE EAST FACE AND 2.4 FEET
LC0421''NORTH OF THE SOUTHEAST CORNER OF THE EAST WING OF THE MCLEAN
LC0421''COUNTY COURTHOUSE, 32 FEET NORTH OF THE SOUTHEAST CORNER OF THE
LC0421''MAIN PART OF THE COURTHOUSE, 92 1/2 FEET WEST OF THE CENTER LINE
LC0421''OF N. MAIN STREET, 38 FEET SOUTH OF THE CENTER OF THE MAIN ENTRANCE
LC0421''TO THE COURTHOUSE, 2.2 FEET ABOVE THE LEVEL OF THE GROUND, AND
LC0421''ABOUT 8 FEET ABOVE THE LEVEL OF N. MAIN STREET.
LC0421
LC0421                          STATION RECOVERY (1986)
LC0421
LC0421''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986
LC0421''RECOVERED IN GOOD CONDITION.  A NEW DESCRIPTION FOLLOWS.  IN
LC0421''BLOOMINGTON, AT THE INTERSECTION OF NORTH MAIN AND WEST WASHINGTON
LC0421''STREETS, SET VERTICALLY IN THE EAST FACE NEAR THE SOUTHEAST CORNER OF
LC0421''THE CONCRETE FOUNDATION WALL OF THE EAST WING OF THE COUNTY
LC0421''COURTHOUSE, 38.5 M (126.3 FT) NORTH OF THE CENTERLINE OF WEST
LC0421''WASHINGTON STREET, 28.5 M (93.5 FT) WEST OF THE CENTERLINE OF NORTH
LC0421''MAIN STREET, 11.6 M (38.1 FT) SOUTH OF THE CENTER OF THE EAST ENTRANCE
LC0421''TO THE COURTHOUSE, AND 0.7 M (2.3 FT) NORTH OF THE SOUTHEAST CORNER OF
LC0421''THE EAST WING OF THE COURTHOUSE.
LC0421''THE MARK IS 0.7 M ABOVE THE GROUND.