HV4525 ***********************************************************************
HV4525  DESIGNATION -  USED 1330
HV4525  PID         -  HV4525
HV4525  STATE/COUNTY-  DC/DISTRICT OF COLUMBIA
HV4525  USGS QUAD   -  WASHINGTON WEST (1983)
HV4525
HV4525                         *CURRENT SURVEY CONTROL
HV4525  ___________________________________________________________________
HV4525* NAD 83(1993)-  38 52 34.70440(N)    077 02 49.53479(W)     ADJUSTED
HV4525* NAVD 88     -         6.38   (+/-2cm)      20.9    (feet)  VERTCON
HV4525  ___________________________________________________________________
HV4525  LAPLACE CORR-          -2.92  (seconds)                    DEFLEC99
HV4525  GEOID HEIGHT-         -32.05  (meters)                     GEOID99
HV4525
HV4525  HORZ ORDER  -  THIRD
HV4525  VERT ORDER  -  THIRD ? (See Below)
HV4525
HV4525.The horizontal coordinates were established by classical geodetic methods
HV4525.and adjusted by the National Geodetic Survey in November 1994.
HV4525
HV4525.The NAVD 88 height was computed by applying the VERTCON shift value to
HV4525.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
HV4525.The vertical order pertains to the superseded datum.
HV4525
HV4525.The Laplace correction was computed from DEFLEC99 derived deflections.
HV4525
HV4525.The geoid height was determined by GEOID99.
HV4525
HV4525;                    North         East     Units   Scale      Converg.
HV4525;SPC MD       -   440,537.91  1,298,926.59   sFT  0.99994985 -0 01 46.4
HV4525;SPC MD       -   134,276.223   395,913.615   MT  0.99994985 -0 01 46.4
HV4525;SPC VA N     - 2,135,267.624 3,626,068.464   MT  0.99995856 +0 54 24.4
HV4525;UTM  18      - 4,305,041.893   322,422.308   MT  0.99998831 -1 17 06.6
HV4525
HV4525:                Primary Azimuth Mark                     Grid Az
HV4525:SPC MD       -  TIDAL USE 1932                           039 20 26.7
HV4525:SPC VA N     -  TIDAL USE 1932                           038 24 15.9
HV4525:UTM  18      -  TIDAL USE 1932                           040 35 46.9
HV4525
HV4525|---------------------------------------------------------------------|
HV4525| PID    Reference Object                     Distance      Geod. Az  |
HV4525|                                                           dddmmss.s |
HV4525| HV4436 TIDAL USE 1932                      APPROX. 0.6 KM 0391840.3 |
HV4525|---------------------------------------------------------------------|
HV4525
HV4525                          SUPERSEDED SURVEY CONTROL
HV4525
HV4525  NAD 83(1991)-  38 52 34.70312(N)    077 02 49.53627(W) AD(       ) 3
HV4525  NAD 83(1986)-  38 52 34.70286(N)    077 02 49.54689(W) AD(       ) 3
HV4525  NAD 27      -  38 52 34.30035(N)    077 02 50.62193(W) AD(       ) 3
HV4525  NGVD 29     -         6.63   (m)           21.8    (f) LEVELING    3
HV4525
HV4525.Superseded values are not recommended for survey control.
HV4525.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV4525.See file dsdata.txt to determine how the superseded data were derived.
HV4525
HV4525_MARKER: DD = SURVEY DISK
HV4525_SETTING: 0 = UNSPECIFIED SETTING
HV4525_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
HV4525
HV4525  HISTORY     - Date     Condition        Recov. By
HV4525  HISTORY     - 1980     MONUMENTED       USE
HV4525
HV4525                          STATION DESCRIPTION
HV4525
HV4525''DESCRIBED BY US ENGINEERS 1980 (BMP)
HV4525''THE STATION IS ON COLUMBIA ISLAND A PART OF THE DISTRICT OF
HV4525''COLUMBIA ON THE VIRGINIA OR WEST SIDE OF THE POTOMAC RIVER.
HV4525''
HV4525''TO REACH THE STATION WHICH IS ON THE STEPS OF THE MARINERS
HV4525''MEMORIAL ON THE SOUTH END OF THE ISLAND ONE CAN PARK IN A
HV4525''SMALL PARKING AREA FOR THE MEMORIAL WHICH IS ON THE EAST SIDE
HV4525''OF THE GEORGE WASHINGTON PARKWAY APPROXIMATELY 0.43 KM NORTH
HV4525''OF THE SOUTHBOUND LANE OF THE 14TH STREET BRIDGE.
HV4525''
HV4525''THE STATION DISK IS A 7.5 CM CORPS OF ENGINEERS BRASS DISK
HV4525''STAMPED---USED 1330---SET IN CONCRETE IN THE FLAGSTONE WALKWAY
HV4525''ON THE EAST OR RIVER SIDE OF THE MEMORIAL. IT IS IN THE SECOND
HV4525''OF FOUR LANDINGS IN THE STAIRS LEADING TO THE MONUMENT,
HV4525''1.76 METERS (5.8 FT) NORTH OF A LOW WALL BOARDERING THE SOUTH
HV4525''SIDE OF THE WALK, 1.86 METERS (6.1 FT) SOUTH OF THE LOW WALL
HV4525''BOARDERING THE NORTH SIDE OF THE WALK, 10.4 METERS (34.0 FT)
HV4525''FROM THE GRASS LAWN AT THE BOTTOM OF THE STAIRS AND 8.0 METERS
HV4525''(26.1 FT) EAST OF THE MARBLE BASE OF THE MONUMENT.