LC0770 ***********************************************************************
LC0770  DESIGNATION -  Q 248
LC0770  PID         -  LC0770
LC0770  STATE/COUNTY-  IL/LIVINGSTON
LC0770  USGS QUAD   -  NORTHWEST PONTIAC (1983)
LC0770
LC0770                         *CURRENT SURVEY CONTROL
LC0770  ___________________________________________________________________
LC0770* NAD 83(1986)-  40 53 36.     (N)    088 37 41.     (W)     SCALED
LC0770* NAVD 88     -       195.310  (meters)     640.78   (feet)  ADJUSTED
LC0770  ___________________________________________________________________
LC0770  GEOID HEIGHT-         -32.13  (meters)                     GEOID99
LC0770  DYNAMIC HT  -         195.227 (meters)     640.51  (feet)  COMP
LC0770  MODELED GRAV-     980,195.3   (mgal)                       NAVD 88
LC0770
LC0770  VERT ORDER  -  SECOND    CLASS 0
LC0770
LC0770.The horizontal coordinates were scaled from a topographic map and have
LC0770.an estimated accuracy of +/- 6 seconds.
LC0770
LC0770.The orthometric height was determined by differential leveling
LC0770.and adjusted by the National Geodetic Survey in June 1991.
LC0770
LC0770.The geoid height was determined by GEOID99.
LC0770
LC0770.The dynamic height is computed by dividing the NAVD 88
LC0770.geopotential number by the normal gravity value computed on the
LC0770.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
LC0770.degrees latitude (g = 980.6199 gals.).
LC0770
LC0770.The modeled gravity was interpolated from observed gravity values.
LC0770
LC0770;                    North         East    Units  Estimated Accuracy
LC0770;SPC IL E     -   469,240.      275,160.      MT  (+/- 180 meters Scaled)
LC0770
LC0770                          SUPERSEDED SURVEY CONTROL
LC0770
LC0770  NGVD 29     -       195.371  (m)          640.98   (f) ADJ UNCH    2 0
LC0770
LC0770.Superseded values are not recommended for survey control.
LC0770.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
LC0770.See file dsdata.txt to determine how the superseded data were derived.
LC0770
LC0770_MARKER: DB = BENCH MARK DISK
LC0770_SETTING: 30 = CULVERT
LC0770_STAMPING: Q 248 1961
LC0770_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
LC0770
LC0770  HISTORY     - Date     Condition        Recov. By
LC0770  HISTORY     - 1961     MONUMENTED       CGS
LC0770
LC0770                          STATION DESCRIPTION
LC0770
LC0770''DESCRIBED BY COAST AND GEODETIC SURVEY 1961
LC0770''1.2 MI NE FROM PONTIAC.
LC0770''ABOUT 0.1 MILE WEST ALONG WEST MADISON STREET FROM THE POST OFFICE
LC0770''IN PONTIAC, THENCE 0.6 MILE NORTH ALONG NORTH DIVISION STREET,
LC0770''THENCE 0.55 MILE NORTH AND NORTHEAST ALONG AN ASPHALT PAVED
LC0770''ROAD (OLD U.S. HIGHWAY 66), AT THE CROSSING OF THE WABASH RAIL
LC0770''ROAD, SET IN THE TOP OF THE NORTHEAST END OF THE SOUTHEAST
LC0770''HEADWALL OF A 5 FOOT CONCRETE BOX CULVERT (UNDER THE ASPHALT PAVED
LC0770''ROAD), 20 FEET SOUTHEAST OF THE CENTER LINE OF THE ROAD, 50 FEET
LC0770''NORTHEAST OF THE CENTER OF THE CROSSING OF THE WABASH RAIL ROAD
LC0770''AND 2 FEET BELOW THE LEVEL OF THE ROAD.  NOTE-- THIS MARK MAY
LC0770''ALSO BE REACHED FROM THE JUNCTION OF U.S. HIGHWAY 66 AND STATE
LC0770''HIGHWAY 23 IN THE NORTHWEST PART OF PONTIAC BY GOING EAST 0.25
LC0770''MILE ON STATE HIGHWAY 23, THENCE 0.85 MILE EAST AND NORTHEAST
LC0770''ALONG WEST LINCOLN AVENUE (OLD U.S. HIGHWAY 66).