HV1711 ***********************************************************************
HV1711  DESIGNATION -  V 100 RESET
HV1711  PID         -  HV1711
HV1711  STATE/COUNTY-  VA/ARLINGTON
HV1711  USGS QUAD   -  WASHINGTON WEST (1983)
HV1711
HV1711                         *CURRENT SURVEY CONTROL
HV1711  ___________________________________________________________________
HV1711* NAD 83(1986)-  38 55 45.     (N)    077 07 04.     (W)     SCALED
HV1711* NAVD 88     -        19.11   (+/-2cm)      62.7    (feet)  VERTCON
HV1711  ___________________________________________________________________
HV1711  GEOID HEIGHT-         -31.88  (meters)                     GEOID99
HV1711
HV1711  VERT ORDER  -  THIRD (See Below)
HV1711
HV1711.The horizontal coordinates were scaled from a topographic map and have
HV1711.an estimated accuracy of +/- 6 seconds.
HV1711
HV1711.The NAVD 88 height was computed by applying the VERTCON shift value to
HV1711.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
HV1711.The vertical order pertains to the superseded datum.
HV1711
HV1711.The geoid height was determined by GEOID99.
HV1711
HV1711;                    North         East    Units  Estimated Accuracy
HV1711;SPC VA N     - 2,141,040.    3,619,850.      MT  (+/- 180 meters Scaled)
HV1711
HV1711                          SUPERSEDED SURVEY CONTROL
HV1711
HV1711  NGVD 29     -        19.34   (m)           63.5    (f) RESET       3
HV1711
HV1711.Superseded values are not recommended for survey control.
HV1711.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV1711.See file dsdata.txt to determine how the superseded data were derived.
HV1711
HV1711_MARKER: DD = SURVEY DISK
HV1711_SETTING: 38 = BRIDGE ABUTMENT
HV1711_STAMPING: V 100 RESET 1971
HV1711_MAGNETIC: O = OTHER; SEE DESCRIPTION
HV1711_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
HV1711
HV1711  HISTORY     - Date     Condition        Recov. By
HV1711  HISTORY     - 1971     MONUMENTED       PBPP
HV1711  HISTORY     - 1972     GOOD             VADH
HV1711  HISTORY     - 19900329 MARK NOT FOUND   NGS
HV1711  HISTORY     - 19920128 GOOD             MSI
HV1711
HV1711                          STATION DESCRIPTION
HV1711
HV1711''DESCRIBED BY VIRGINIA DEPARTMENT OF HIGHWAYS 1972
HV1711''AT ARLINGTON.
HV1711''AT ARLINGTON, 100 YARDS WEST OF THE WEST END OF CHAIN BRIDGE,
HV1711''AT THE NORTH GLEBE ROAD BRIDGE OVER PIMMET RUN, AT THE NORTHWEST
HV1711''END OF THE BRIDGE, IN THE CONCRETE ABUTMENT AND 49.1 FEET FROM
HV1711''THE CENTER LINE OF THE BRIDGE.
HV1711
HV1711                          STATION RECOVERY (1990)
HV1711
HV1711''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1990
HV1711''MARK NOT FOUND.
HV1711
HV1711                          STATION RECOVERY (1992)
HV1711
HV1711''RECOVERY NOTE BY MEASUREMENT SCIENCE INCORPORATED 1992
HV1711''IN ARLINGTON, 100 YARDS WEST OF THE WEST END OF CHAIN BRIDGE, AT THE
HV1711''NORTH GLEBE ROAD BRIDGE OVER PIMMET RUN, AT THE NORTHWEST END OF THE
HV1711''BRIDGE, IN THE CONCRETE ABUTMENT AND 49.1 FEET (15.0 M) FROM THE
HV1711''CENTER LINE OF THE BRIDGE.