HV1861 ***********************************************************************
HV1861  DESIGNATION -  NW 1=NATL ACAD OF SCI
HV1861  PID         -  HV1861
HV1861  STATE/COUNTY-  DC/DISTRICT OF COLUMBIA
HV1861  USGS QUAD   -  WASHINGTON WEST (1983)
HV1861
HV1861                         *CURRENT SURVEY CONTROL
HV1861  ___________________________________________________________________
HV1861* NAD 83(1986)-  38 53 33.     (N)    077 02 56.     (W)     SCALED
HV1861* NAVD 88     -         8.79   (+/-2cm)      28.8    (feet)  VERTCON
HV1861  ___________________________________________________________________
HV1861  GEOID HEIGHT-         -32.02  (meters)                     GEOID99
HV1861
HV1861  VERT ORDER  -  FIRST     CLASS II (See Below)
HV1861
HV1861.The horizontal coordinates were scaled from a topographic map and have
HV1861.an estimated accuracy of +/- 6 seconds.
HV1861
HV1861.The NAVD 88 height was computed by applying the VERTCON shift value to
HV1861.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
HV1861.The vertical order pertains to the superseded datum.
HV1861
HV1861.The geoid height was determined by GEOID99.
HV1861
HV1861                          SUPERSEDED SURVEY CONTROL
HV1861
HV1861  NGVD 29     -         9.027  (m)           29.62   (f) ADJUSTED    1 2
HV1861
HV1861.Superseded values are not recommended for survey control.
HV1861.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV1861.See file dsdata.txt to determine how the superseded data were derived.
HV1861
HV1861_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
HV1861
HV1861  HISTORY     - Date     Condition        Recov. By
HV1861  HISTORY     - UNK      MONUMENTED       PBPP
HV1861  HISTORY     - 1926     GOOD             CGS
HV1861  HISTORY     - 1948     GOOD             CGS
HV1861
HV1861                          STATION DESCRIPTION
HV1861
HV1861''DESCRIBED BY COAST AND GEODETIC SURVEY 1926
HV1861''AT WASHINGTON.
HV1861''AT WASHINGTON, ON CONSTITUTION AVENUE BETWEEN TWENTY-SECOND AND
HV1861''TWENTY-THIRD STREETS NORTHWEST, AT THE NATIONAL ACADEMY OF
HV1861''SCIENCES, AT THE SECOND FLIGHT OF STEPS AT THE FRONT ENTRANCE, ON
HV1861''THE TOP OF THE SECOND STEP FROM THE BOTTOM, 3 FEET WEST OF THE
HV1861''EAST MARBLE SIDE WALL, 1/2 INCH EAST OF THE FIRST MORTAR JOINT
HV1861''OF THE SIDE WALL, AND 1/4 INCH NORTH OF THE EDGE OF THE STEP.  AN
HV1861''UNMARKED POINT.  NOTE-- THE ONLY POINT TO SATISFY THE DESCRIPTION
HV1861''IS ON THE SECOND SET OF STEPS SOUTH OF THE BUILDING WHICH ARE
HV1861''BETWEEN THE TWO ENTRANCE LAMPPOSTS.
HV1861
HV1861                          STATION RECOVERY (1948)
HV1861
HV1861''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1948
HV1861''RECOVERED IN GOOD CONDITION.