LC1628 ***********************************************************************
LC1628  DESIGNATION -  Z 38 RESET
LC1628  PID         -  LC1628
LC1628  STATE/COUNTY-  IL/MCLEAN
LC1628  USGS QUAD   -  BLOOMINGTON EAST (1981)
LC1628
LC1628                         *CURRENT SURVEY CONTROL
LC1628  ___________________________________________________________________
LC1628* NAD 83(1986)-  40 28 29.     (N)    088 59 35.     (W)     SCALED
LC1628* NAVD 88     -       240.724  (meters)     789.78   (feet)  ADJUSTED
LC1628  ___________________________________________________________________
LC1628  GEOID HEIGHT-         -32.08  (meters)                     GEOID99
LC1628  DYNAMIC HT  -         240.611 (meters)     789.40  (feet)  COMP
LC1628  MODELED GRAV-     980,149.2   (mgal)                       NAVD 88
LC1628
LC1628  VERT ORDER  -  FIRST     CLASS II
LC1628
LC1628.The horizontal coordinates were scaled from a topographic map and have
LC1628.an estimated accuracy of +/- 6 seconds.
LC1628
LC1628.The orthometric height was determined by differential leveling
LC1628.and adjusted by the National Geodetic Survey in June 1991.
LC1628
LC1628.The geoid height was determined by GEOID99.
LC1628
LC1628.The dynamic height is computed by dividing the NAVD 88
LC1628.geopotential number by the normal gravity value computed on the
LC1628.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
LC1628.degrees latitude (g = 980.6199 gals.).
LC1628
LC1628.The modeled gravity was interpolated from observed gravity values.
LC1628
LC1628;                    North         East    Units  Estimated Accuracy
LC1628;SPC IL E     -   422,920.      244,060.      MT  (+/- 180 meters Scaled)
LC1628
LC1628                          SUPERSEDED SURVEY CONTROL
LC1628
LC1628  NGVD 29     -       240.80   (m)          790.0    (f) RESET       3
LC1628
LC1628.Superseded values are not recommended for survey control.
LC1628.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
LC1628.See file dsdata.txt to determine how the superseded data were derived.
LC1628
LC1628_MARKER: DB = BENCH MARK DISK
LC1628_SETTING: 38 = BRIDGE ABUTMENT
LC1628_STAMPING: Z 38 RESET 1981
LC1628_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
LC1628+STABILITY: POSITION/ELEVATION WELL
LC1628
LC1628  HISTORY     - Date     Condition        Recov. By
LC1628  HISTORY     - 1981     MONUMENTED       ILDT
LC1628  HISTORY     - 1986     GOOD             NGS
LC1628
LC1628                          STATION DESCRIPTION
LC1628
LC1628''DESCRIBED BY ILLINOIS DEPARTMENT OF TRANSPORTATION 1981
LC1628''IN BLOOMINGTON.
LC1628''IN BLOOMINGTON, IN A CONCRETE LEDGE WITH THE SOUTH ABUTMENT OF THE
LC1628''RAILROAD GRADE SEPARATION STRUCTURE WHICH CARRIES MAIN STREET
LC1628''(U.S. ROUTE 51 NORTHBOUND) OVER THE NOROLK AND WESTERN AND CONRAIL
LC1628''RAILROAD. THE LEDGE IS 1.0 FOOT SQUARE ON THE EAST SIDE OF THE
LC1628''ABUTMENT AT TRACK ELEVATION.
LC1628
LC1628                          STATION RECOVERY (1986)
LC1628
LC1628''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986
LC1628''RECOVERED IN GOOD CONDITION.  A NEW DESCRIPTION FOLLOWS.  IN
LC1628''BLOOMINGTON, AT THE INTERSECTION OF SOUTH EAST STREET AND THE CONRAIL
LC1628''RAILROAD, IN THE EAST END OF THE SOUTH CONCRETE ABUTMENT OF U.S.
LC1628''HIGHWAY 51 OVERPASS OF THE RAILROAD, 6.0 M (19.7 FT) EAST OF THE
LC1628''CENTERLINE OF THE STREET, 5.1 M (16.7 FT) SOUTHWEST OF THE NEAR RAIL,
LC1628''AND 0.1 M (0.3 FT) WEST OF THE EAST END OF THE ABUTMENT.
LC1628''THE MARK IS 0.6 M ABOVE THE GROUND.