LC0472 ***********************************************************************
LC0472  DESIGNATION -  T 258
LC0472  PID         -  LC0472
LC0472  STATE/COUNTY-  IL/MCLEAN
LC0472  USGS QUAD   -  HEYWORTH (1981)
LC0472
LC0472                         *CURRENT SURVEY CONTROL
LC0472  ___________________________________________________________________
LC0472* NAD 83(1986)-  40 18 48.     (N)    088 58 37.     (W)     SCALED
LC0472* NAVD 88     -       228.599  (meters)     750.00   (feet)  ADJUSTED
LC0472  ___________________________________________________________________
LC0472  GEOID HEIGHT-         -32.14  (meters)                     GEOID99
LC0472  DYNAMIC HT  -         228.487 (meters)     749.63  (feet)  COMP
LC0472  MODELED GRAV-     980,129.6   (mgal)                       NAVD 88
LC0472
LC0472  VERT ORDER  -  FIRST     CLASS I
LC0472
LC0472.The horizontal coordinates were scaled from a topographic map and have
LC0472.an estimated accuracy of +/- 6 seconds.
LC0472
LC0472.The orthometric height was determined by differential leveling
LC0472.and adjusted by the National Geodetic Survey in June 1991.
LC0472
LC0472.The geoid height was determined by GEOID99.
LC0472
LC0472.The dynamic height is computed by dividing the NAVD 88
LC0472.geopotential number by the normal gravity value computed on the
LC0472.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
LC0472.degrees latitude (g = 980.6199 gals.).
LC0472
LC0472.The modeled gravity was interpolated from observed gravity values.
LC0472
LC0472;                    North         East    Units  Estimated Accuracy
LC0472;SPC IL E     -   404,990.      245,290.      MT  (+/- 180 meters Scaled)
LC0472
LC0472                          SUPERSEDED SURVEY CONTROL
LC0472
LC0472  NGVD 29     -       228.666  (m)          750.22   (f) ADJ UNCH    1 1
LC0472
LC0472.Superseded values are not recommended for survey control.
LC0472.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
LC0472.See file dsdata.txt to determine how the superseded data were derived.
LC0472
LC0472_MARKER: DB = BENCH MARK DISK
LC0472_SETTING: 0 = UNSPECIFIED SETTING
LC0472_STAMPING: T 258 1961
LC0472_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
LC0472
LC0472  HISTORY     - Date     Condition        Recov. By
LC0472  HISTORY     - 1961     MONUMENTED       CGS
LC0472  HISTORY     - 1969     GOOD             NGS
LC0472  HISTORY     - 1989     GOOD             USPSQD
LC0472
LC0472                          STATION DESCRIPTION
LC0472
LC0472''DESCRIBED BY NATIONAL GEODETIC SURVEY 1969
LC0472''0.2 MI SW FROM HEYWORTH.
LC0472''ABOUT 0.1 MILE WEST ALONG MAIN STREET FROM THE POST OFFICE AT
LC0472''HEYWORTH, THENCE 0.05 MILE SOUTH ALONG BUCHANAN STREET, 52 FEET
LC0472''EAST OF THE CENTER LINE OF THE STREET, SET VERTICALLY IN THE
LC0472''WEST FACE AND 1.4 FEET SOUTH OF THE NORTHWEST CORNER OF THE
LC0472''MUNICIPAL ELECTRIC LIGHT AND POWER PLANT BUILDING, AND 15 1/2
LC0472''FEET NORTH OF THE CENTER OF THE WEST ENTRANCE TO THE BUILDING.
LC0472''SEC 34, T 22 N, R 2 E.
LC0472
LC0472                          STATION RECOVERY (1989)
LC0472
LC0472''RECOVERY NOTE BY US POWER SQUADRON 1989 (KMS)
LC0472''RECOVERED IN GOOD CONDITION.