HV4519 ***********************************************************************
HV4519  DESIGNATION -  15 CON
HV4519  PID         -  HV4519
HV4519  STATE/COUNTY-  DC/DISTRICT OF COLUMBIA
HV4519  USGS QUAD   -  WASHINGTON WEST (1983)
HV4519
HV4519                         *CURRENT SURVEY CONTROL
HV4519  ___________________________________________________________________
HV4519* NAD 83(1993)-  38 53 32.13963(N)    077 02 00.55815(W)     ADJUSTED
HV4519* NAVD 88     -         1.9    (meters)       6.     (feet)  VERTCON
HV4519  ___________________________________________________________________
HV4519  LAPLACE CORR-          -2.57  (seconds)                    DEFLEC99
HV4519  GEOID HEIGHT-         -32.04  (meters)                     GEOID99
HV4519
HV4519  HORZ ORDER  -  SECOND
HV4519
HV4519.The horizontal coordinates were established by classical geodetic methods
HV4519.and adjusted by the National Geodetic Survey in November 1994.
HV4519
HV4519.The NAVD 88 height was computed by applying the VERTCON shift value to
HV4519.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
HV4519
HV4519.The Laplace correction was computed from DEFLEC99 derived deflections.
HV4519
HV4519.The geoid height was determined by GEOID99.
HV4519
HV4519;                    North         East     Units   Scale      Converg.
HV4519;SPC MD       -   446,346.70  1,302,801.77   sFT  0.99994989 -0 01 15.7
HV4519;SPC MD       -   136,046.745   397,094.774   MT  0.99994989 -0 01 15.7
HV4519;SPC VA N     - 2,137,057.227 3,627,220.544   MT  0.99995985 +0 54 55.0
HV4519;UTM  18      - 4,306,786.165   323,642.031   MT  0.99998300 -1 16 37.5
HV4519
HV4519:                Primary Azimuth Mark                     Grid Az
HV4519:SPC MD       -  15 CON AZ MK                             000 21 43.5
HV4519:SPC VA N     -  15 CON AZ MK                             359 25 32.8
HV4519:UTM  18      -  15 CON AZ MK                             001 37 05.3
HV4519
HV4519|---------------------------------------------------------------------|
HV4519| PID    Reference Object                     Distance      Geod. Az  |
HV4519|                                                           dddmmss.s |
HV4519| HV4518 15 E                                341.856 METERS 00015     |
HV4519|        15 CON AZ MK                                       0002027.8 |
HV4519| HV4521 WMG 1981                            290.514 METERS 19637     |
HV4519|---------------------------------------------------------------------|
HV4519
HV4519                          SUPERSEDED SURVEY CONTROL
HV4519
HV4519  NAD 83(1991)-  38 53 32.13848(N)    077 02 00.55941(W) AD(       ) 2
HV4519  NAD 83(1986)-  38 53 32.13805(N)    077 02 00.57008(W) AD(       ) 2
HV4519  NAD 27      -  38 53 31.73873(N)    077 02 01.64943(W) AD(       ) 2
HV4519  NGVD 29     -         2.1    (m)            7.     (f) VERT ANG
HV4519
HV4519.Superseded values are not recommended for survey control.
HV4519.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV4519.See file dsdata.txt to determine how the superseded data were derived.
HV4519
HV4519_MARKER: DD = SURVEY DISK
HV4519_SETTING: 0 = UNSPECIFIED SETTING
HV4519
HV4519  HISTORY     - Date     Condition        Recov. By
HV4519  HISTORY     - 1981     MONUMENTED       CANDA
HV4519
HV4519                          STATION DESCRIPTION
HV4519
HV4519''DESCRIBED BY CERVANTES AND ASSOCIATES 1981 (GCC)
HV4519''THE SURVEY POINT IS A PUNCH HOLE LOCATED IN THE OPENING OF THE
HV4519''LETTER C IN A 3-1/2 INCH DIAMETER BRASS DISK.
HV4519''
HV4519''STATION IS LOCATED IN THE SIDEWALK ON THE NORTHEAST CORNER OF 15TH
HV4519''STREET N.W. AND CONSTITUTION AVE. N.W.
HV4519''
HV4519''STATION IS 12.94 FT NE OF X ON RIM PEPCO M.H.
HV4519''
HV4519''STATION IS 20.34 FT NW OF SIGNAL POST BASE ON CON. AVE.
HV4519''
HV4519''STATION IS 8.56 FT SE OF SIGNAL POST BASE ON 15TH STREET.