LX0579 ***********************************************************************
LX0579  TIDAL BM    -  This is a Tidal Bench Mark.
LX0579  DESIGNATION -  Y 14
LX0579  PID         -  LX0579
LX0579  STATE/COUNTY-  CT/MIDDLESEX
LX0579  USGS QUAD   -  MIDDLETOWN (1992)
LX0579
LX0579                         *CURRENT SURVEY CONTROL
LX0579  ___________________________________________________________________
LX0579* NAD 83(1986)-  41 33 59.     (N)    072 39 00.     (W)     SCALED
LX0579* NAVD 88     -        10.049  (meters)      32.97   (feet)  ADJUSTED
LX0579  ___________________________________________________________________
LX0579  GEOID HEIGHT-         -29.54  (meters)                     GEOID99
LX0579  DYNAMIC HT  -          10.046 (meters)      32.96  (feet)  COMP
LX0579  MODELED GRAV-     980,305.3   (mgal)                       NAVD 88
LX0579
LX0579  VERT ORDER  -  FIRST     CLASS II
LX0579
LX0579.The horizontal coordinates were scaled from a topographic map and have
LX0579.an estimated accuracy of +/- 6 seconds.
LX0579
LX0579.The orthometric height was determined by differential leveling
LX0579.and adjusted by the National Geodetic Survey in June 1991.
LX0579
LX0579.This Tidal Bench Mark is designated as VM 2264
LX0579.by the Center for Operational Oceanographic Products and Services.
LX0579
LX0579.The geoid height was determined by GEOID99.
LX0579
LX0579.The dynamic height is computed by dividing the NAVD 88
LX0579.geopotential number by the normal gravity value computed on the
LX0579.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
LX0579.degrees latitude (g = 980.6199 gals.).
LX0579
LX0579.The modeled gravity was interpolated from observed gravity values.
LX0579
LX0579;                    North         East    Units  Estimated Accuracy
LX0579;SPC CT       -   233,820.      313,140.      MT  (+/- 180 meters Scaled)
LX0579
LX0579                          SUPERSEDED SURVEY CONTROL
LX0579
LX0579  NGVD 29     -        10.356  (m)           33.98   (f) ADJ UNCH    1 2
LX0579
LX0579.Superseded values are not recommended for survey control.
LX0579.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
LX0579.See file dsdata.txt to determine how the superseded data were derived.
LX0579
LX0579_MARKER: DB = BENCH MARK DISK
LX0579_SETTING: 41 = BRIDGE ABUTMENT
LX0579_STAMPING: Y 14 1935
LX0579_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
LX0579+STABILITY: POSITION/ELEVATION WELL
LX0579
LX0579  HISTORY     - Date     Condition        Recov. By
LX0579  HISTORY     - 1935     MONUMENTED       CGS
LX0579  HISTORY     - 1952     GOOD             NGS
LX0579  HISTORY     - 1972     GOOD             CTGS
LX0579  HISTORY     - 1984     GOOD             NGS
LX0579  HISTORY     - 1986     GOOD             NGS
LX0579  HISTORY     - 1987     GOOD             USPSQD
LX0579
LX0579                          STATION DESCRIPTION
LX0579
LX0579''DESCRIBED BY COAST AND GEODETIC SURVEY 1935
LX0579''AT MIDDLETOWN.
LX0579''AT MIDDLETOWN, MIDDLESEX COUNTY, ABOUT 100 FEET EAST OF THE NEW
LX0579''YORK, NEW HAVEN AND HARTFORD RAILROAD STATION, AT BRIDGE 24.26
LX0579''OVER CONNECTICUT RIVER, IN THE TOP OF THE NORTH SIDE OF THE
LX0579''WEST BRIDGE SEAT OF THE SPAN LEADING TO THE MAIN TRUSSES, 12
LX0579''FEET NORTH OF THE CENTER LINE OF THE TRACK, AND ABOUT 2 FEET
LX0579''LOWER THAN THE RAIL.  A STANDARD DISK, STAMPED Y 14 1935.
LX0579
LX0579                          STATION RECOVERY (1952)
LX0579
LX0579''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1952
LX0579''RECOVERED IN GOOD CONDITION.
LX0579
LX0579                          STATION RECOVERY (1972)
LX0579
LX0579''RECOVERY NOTE BY CONNECTICUT GEODETIC SURVEY 1972
LX0579''RECOVERED IN GOOD CONDITION.
LX0579
LX0579                          STATION RECOVERY (1984)
LX0579
LX0579''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1984
LX0579''RECOVERED IN GOOD CONDITION.
LX0579
LX0579                          STATION RECOVERY (1986)
LX0579
LX0579''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986
LX0579''RECOVERED IN GOOD CONDITION, THE 1984 DESCRIPTION IS ADEQUATE EXCEPT
LX0579''THE RAILROAD STATION HAS BEEN REMOVED BUT THE FOUNDATION IS IN PLACE
LX0579''IN GOOD CONDITION.
LX0579
LX0579                          STATION RECOVERY (1987)
LX0579
LX0579''RECOVERY NOTE BY US POWER SQUADRON 1987 (CH)
LX0579''RECOVERED IN GOOD CONDITION.