JD0048 ***********************************************************************
JD0048  DESIGNATION -  COLUMBIA 1
JD0048  PID         -  JD0048
JD0048  STATE/COUNTY-  MO/BOONE
JD0048  USGS QUAD   -  COLUMBIA (1981)
JD0048
JD0048                         *CURRENT SURVEY CONTROL
JD0048  ___________________________________________________________________
JD0048* NAD 83(1986)-  38 57 02.     (N)    092 19 50.     (W)     SCALED
JD0048* NAVD 88     -       222.732  (meters)     730.75   (feet)  ADJUSTED
JD0048  ___________________________________________________________________
JD0048  GEOID HEIGHT-         -32.70  (meters)                     GEOID99
JD0048  DYNAMIC HT  -         222.587 (meters)     730.27  (feet)  COMP
JD0048  MODELED GRAV-     979,968.6   (mgal)                       NAVD 88
JD0048
JD0048  VERT ORDER  -  SECOND    CLASS 0
JD0048
JD0048.The horizontal coordinates were scaled from a topographic map and have
JD0048.an estimated accuracy of +/- 6 seconds.
JD0048
JD0048.The orthometric height was determined by differential leveling
JD0048.and adjusted by the National Geodetic Survey in June 1991.
JD0048.WARNING-Repeat measurements at this control monument indicate possible
JD0048.vertical movement.
JD0048
JD0048.The geoid height was determined by GEOID99.
JD0048
JD0048.The dynamic height is computed by dividing the NAVD 88
JD0048.geopotential number by the normal gravity value computed on the
JD0048.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
JD0048.degrees latitude (g = 980.6199 gals.).
JD0048
JD0048.The modeled gravity was interpolated from observed gravity values.
JD0048
JD0048;                    North         East    Units  Estimated Accuracy
JD0048;SPC MO C     -   345,960.      514,690.      MT  (+/- 180 meters Scaled)
JD0048
JD0048                          SUPERSEDED SURVEY CONTROL
JD0048
JD0048  NGVD 29     -       222.718  (m)          730.70   (f) ADJ UNCH    2 0
JD0048
JD0048.Superseded values are not recommended for survey control.
JD0048.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
JD0048.See file dsdata.txt to determine how the superseded data were derived.
JD0048
JD0048_MARKER: DB = BENCH MARK DISK
JD0048_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
JD0048_STAMPING: COLUMBIA NO 1 1934
JD0048_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
JD0048+STABILITY: SURFACE MOTION
JD0048
JD0048  HISTORY     - Date     Condition        Recov. By
JD0048  HISTORY     - 1934     MONUMENTED       CGS
JD0048  HISTORY     - 1946     GOOD             NGS
JD0048
JD0048                          STATION DESCRIPTION
JD0048
JD0048''DESCRIBED BY NATIONAL GEODETIC SURVEY 1946
JD0048''AT COLUMBIA.
JD0048''AT COLUMBIA, BOONE COUNTY, 10 FEET SOUTHWEST OF THE SOUTHWEST
JD0048''CORNER OF THE CITY HALL, 30 FEET EAST OF THE CENTERLINE OF
JD0048''6TH STREET, 19 FEET NORTH OF THE CENTERLINE OF A REAR DRIVE,
JD0048''5 FEET EAST OF A LAMP POST, AND ABOUT 2 FEET ABOVE GROUND.  A
JD0048''STANDARD DISK STAMPED COLUMBIA 1 1935 AND SET IN THE TOP OF
JD0048''A 14-INCH SQUARE CONCRETE POST.  NOTE-- THE MARK WAS STAMPED
JD0048''1934 INSTEAD OF 1935 AND THE DISK IS SET IN THE TOP OF AN 18
JD0048''X 19 INCH STONE POST.