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Details for Benchmark: HS3092

N 37° 20.550 W 121° 52.017 (NAD 83)

Altitude: 100.7

Coordinates may not be exact. Altitude is VERTCON and location is SCALED. (more info)

Location:
In SANTA CLARA county, CA View Original Datasheet
Designation:
Q 323
Marker Type:
bench mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1954 MARK NOT FOUND.

Documented History (by the NGS)

Unknown by CGS (MONUMENTED)
01/01/1948 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1948 AT SAN JOSE. AT SAN JOSE, AT THE INTERSECTION OF SOUTH TWENTY-FIRST STREET WITH EAST SAN ANTONIO STREET, IN A PARKWAY, 8 FEET NORTHWEST OF THE SOUTHEAST PROPERTY LINE OF EAST SAN ANTONIO STREET, AND 5 FEET SOUTHWEST OF THE SOUTHWEST PROPERTY LINE OF SOUTH TWENTY-FIRST STREET. A STANDARD DISK SET IN THE TOP OF A CONCRETE POST. NOTE-- THERE IS A HOUSE ON THE CORNER WHERE THIS MARK WAS LOCATED, THE MARK MAY HAVE BEEN DESTROYED.
01/01/1954 by NGS (MARK NOT FOUND)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1954 MARK NOT FOUND.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The geoid height was determined by GEOID99.

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