HS4116 ***********************************************************************
HS4116  DESIGNATION -  T 1257
HS4116  PID         -  HS4116
HS4116  STATE/COUNTY-  CA/ALAMEDA
HS4116  USGS QUAD   -  LIVERMORE (1980)
HS4116
HS4116                         *CURRENT SURVEY CONTROL
HS4116  ___________________________________________________________________
HS4116* NAD 83(1986)-  37 42 04.     (N)    121 52 19.     (W)     SCALED
HS4116* NAVD 88     -       107.41   (+/-2cm)     352.4    (feet)  VERTCON
HS4116  ___________________________________________________________________
HS4116  GEOID HEIGHT-         -32.27  (meters)                     GEOID99
HS4116
HS4116  VERT ORDER  -  FIRST     CLASS I (See Below)
HS4116
HS4116.The horizontal coordinates were scaled from a topographic map and have
HS4116.an estimated accuracy of +/- 6 seconds.
HS4116
HS4116.The NAVD 88 height was computed by applying the VERTCON shift value to
HS4116.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
HS4116.The vertical order pertains to the superseded datum.
HS4116
HS4116.The geoid height was determined by GEOID99.
HS4116
HS4116;                    North         East    Units  Estimated Accuracy
HS4116;SPC CA 3     -   634,190.    1,879,020.      MT  (+/- 180 meters Scaled)
HS4116
HS4116                          SUPERSEDED SURVEY CONTROL
HS4116
HS4116  NGVD 29     -       106.599  (m)          349.73   (f) ADJUSTED    1 1
HS4116
HS4116.Superseded values are not recommended for survey control.
HS4116.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HS4116.See file dsdata.txt to determine how the superseded data were derived.
HS4116
HS4116_MARKER: DB = BENCH MARK DISK
HS4116_SETTING: 38 = SUPPORT PIER
HS4116_STAMPING: T 1257 1974
HS4116_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
HS4116
HS4116  HISTORY     - Date     Condition        Recov. By
HS4116  HISTORY     - 1974     MONUMENTED       NGS
HS4116
HS4116                          STATION DESCRIPTION
HS4116
HS4116''DESCRIBED BY NATIONAL GEODETIC SURVEY 1974
HS4116''5.6 KM (3.50 MI) EAST FROM DUBLIN.
HS4116''3.5 MILES EAST ALONG INTERSTATE HIGHWAY 580 FROM THE JUNCTION OF
HS4116''FOOTHILL ROAD IN DUBLIN, AT THE TASSAJARA ROAD OVERPASS, 24 FEET
HS4116''SOUTH OF THE SOUTH MOST CENTERLINE OF THE EAST BOUND HIGHWAY LANES,
HS4116''SET VERTICALLY IN THE EAST FACE OF THE FIRST CONCRETE SUPPORT PIER
HS4116''SOUTH OF THE EAST BOUND HIGHWAY LANES OF THE OVERPASS, ABOUT 3.5 FEET
HS4116''HIGHER THAN THE GROUND, AND ABOUT 3.5 FEET HIGHER THAN THE HIGHWAY
HS4116''LANES.