LC0769 ***********************************************************************
LC0769  DESIGNATION -  Y 248
LC0769  PID         -  LC0769
LC0769  STATE/COUNTY-  IL/LIVINGSTON
LC0769  USGS QUAD   -  NORTHWEST PONTIAC (1983)
LC0769
LC0769                         *CURRENT SURVEY CONTROL
LC0769  ___________________________________________________________________
LC0769* NAD 83(1986)-  40 53 17.     (N)    088 37 59.     (W)     SCALED
LC0769* NAVD 88     -       195.677  (meters)     641.98   (feet)  ADJUSTED
LC0769  ___________________________________________________________________
LC0769  GEOID HEIGHT-         -32.13  (meters)                     GEOID99
LC0769  DYNAMIC HT  -         195.594 (meters)     641.71  (feet)  COMP
LC0769  MODELED GRAV-     980,194.8   (mgal)                       NAVD 88
LC0769
LC0769  VERT ORDER  -  SECOND    CLASS 0
LC0769
LC0769.The horizontal coordinates were scaled from a topographic map and have
LC0769.an estimated accuracy of +/- 6 seconds.
LC0769
LC0769.The orthometric height was determined by differential leveling
LC0769.and adjusted by the National Geodetic Survey in June 1991.
LC0769
LC0769.The geoid height was determined by GEOID99.
LC0769
LC0769.The dynamic height is computed by dividing the NAVD 88
LC0769.geopotential number by the normal gravity value computed on the
LC0769.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
LC0769.degrees latitude (g = 980.6199 gals.).
LC0769
LC0769.The modeled gravity was interpolated from observed gravity values.
LC0769
LC0769;                    North         East    Units  Estimated Accuracy
LC0769;SPC IL E     -   468,650.      274,740.      MT  (+/- 180 meters Scaled)
LC0769
LC0769                          SUPERSEDED SURVEY CONTROL
LC0769
LC0769  NGVD 29     -       195.738  (m)          642.18   (f) ADJ UNCH    2 0
LC0769
LC0769.Superseded values are not recommended for survey control.
LC0769.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
LC0769.See file dsdata.txt to determine how the superseded data were derived.
LC0769
LC0769_MARKER: DB = BENCH MARK DISK
LC0769_SETTING: 36 = BRIDGE
LC0769_STAMPING: Y 248 1961
LC0769_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
LC0769
LC0769  HISTORY     - Date     Condition        Recov. By
LC0769  HISTORY     - 1961     MONUMENTED       CGS
LC0769
LC0769                          STATION DESCRIPTION
LC0769
LC0769''DESCRIBED BY COAST AND GEODETIC SURVEY 1961
LC0769''0.7 MI NW FROM PONTIAC.
LC0769''ABOUT 0.1 MILES WEST ALONG WEST MADISON STREET FROM THE POST
LC0769''OFFICE IN PONTIAC, THENCE 0.6 MILE NORTH ALONG NORTH DIVISION
LC0769''STREET, AT THE JUNCTION OF WEST LINCOLN AVENUE (OLD U.S. HIGHWAY
LC0769''66), SET IN THE TOP OF A WINGWALL AT THE NORTH EAST CORNER OF
LC0769''A 30 FOOT CONCRETE BRIDGE, 15 FEET EAST OF THE CENTER LINE OF AN
LC0769''ASPHALT PAVED ROAD AND ABOUT LEVEL WITH THE ROAD.  NOTE-- THIS
LC0769''MARK MAY ALSO BE REACHED FROM THE JUNCTION OF U.S. HIGHWAY 66
LC0769''AND STATE HIGHWAY 23 IN THE NORTHWEST PART OF PONTIAC BY GOING
LC0769''EAST FOR 0.25 MILES ALONG STATE HIGHWAY 23, THENCE 0.3 MILE
LC0769''EAST AND NORTHEAST ALONG WEST LINCOLN AVENUE (OLD U.S. HIGHWAY
LC0769''66).