NE0869 ***********************************************************************
NE0869  DESIGNATION -  CAISSON
NE0869  PID         -  NE0869
NE0869  STATE/COUNTY-  MI/WAYNE
NE0869  USGS QUAD   -  DETROIT (1980)
NE0869
NE0869                         *CURRENT SURVEY CONTROL
NE0869  ___________________________________________________________________
NE0869* NAD 83(1986)-  42 18 51.     (N)    083 04 31.     (W)     SCALED
NE0869* NAVD 88     -       179.513  (meters)     588.95   (feet)  ADJUSTED
NE0869  ___________________________________________________________________
NE0869  GEOID HEIGHT-         -34.48  (meters)                     GEOID99
NE0869  DYNAMIC HT  -         179.460 (meters)     588.78  (feet)  COMP
NE0869  MODELED GRAV-     980,320.3   (mgal)                       NAVD 88
NE0869
NE0869  VERT ORDER  -  FIRST     CLASS II
NE0869
NE0869.The horizontal coordinates were scaled from a topographic map and have
NE0869.an estimated accuracy of +/- 6 seconds.
NE0869
NE0869.The orthometric height was determined by differential leveling
NE0869.and adjusted by the National Geodetic Survey in June 1991.
NE0869.WARNING-Repeat measurements at this control monument indicate possible
NE0869.vertical movement.
NE0869
NE0869.The geoid height was determined by GEOID99.
NE0869
NE0869.The dynamic height is computed by dividing the NAVD 88
NE0869.geopotential number by the normal gravity value computed on the
NE0869.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
NE0869.degrees latitude (g = 980.6199 gals.).
NE0869
NE0869.The modeled gravity was interpolated from observed gravity values.
NE0869
NE0869;                    North         East    Units  Estimated Accuracy
NE0869;SPC MI S     -    91,250.    4,106,460.      MT  (+/- 180 meters Scaled)
NE0869
NE0869                          SUPERSEDED SURVEY CONTROL
NE0869
NE0869  NGVD 29     -       179.687  (m)          589.52   (f) ADJUSTED    1 2
NE0869
NE0869.Superseded values are not recommended for survey control.
NE0869.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
NE0869.See file dsdata.txt to determine how the superseded data were derived.
NE0869
NE0869_MARKER: DD = SURVEY DISK
NE0869_SETTING: 40 = BRIDGE FOUNDATION
NE0869_STAMPING: CAISSON 1959
NE0869_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
NE0869+STABILITY: POSITION/ELEVATION WELL
NE0869
NE0869  HISTORY     - Date     Condition        Recov. By
NE0869  HISTORY     - 1959     MONUMENTED       USE
NE0869  HISTORY     - 1980     GOOD             NGS
NE0869  HISTORY     - 1985     GOOD             NGS
NE0869  HISTORY     - 19990925 MARK NOT FOUND   USPSQD
NE0869
NE0869                          STATION DESCRIPTION
NE0869
NE0869''DESCRIBED BY NATIONAL GEODETIC SURVEY 1980
NE0869''IN DETROIT.
NE0869''IN DETROIT, UNDER THE AMBASSADOR BRIDGE SET IN THE TOP AND ON SOUTH-
NE0869''EAST SIDE OF THE NORTHEAST CONCRETE FOUNDATION OF THE NORTHEAST ONE
NE0869''OF TWO STEEL PIERS, WHICH IS NEAREST TO THE RIVER.
NE0869''NOTE-THIS IS A MASSIVE STRUCTURE.
NE0869
NE0869                          STATION RECOVERY (1985)
NE0869
NE0869''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1985
NE0869''RECOVERED IN GOOD CONDITION.  ADD--248.7 M (815.9 FT) SOUTHEAST OF THE
NE0869''CENTER OF JEFFERSON AVENUE, AND 15.2 M (49.9 FT) SOUTHWEST OF THE
NE0869''EXTENDED CENTER OF 21ST STREET.
NE0869
NE0869                          STATION RECOVERY (1999)
NE0869
NE0869''RECOVERY NOTE BY US POWER SQUADRON 1999
NE0869''MARK NOT FOUND.