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Details for Benchmark: HT3456

N 37° 44.155 W 122° 30.334 (NAD 83)

Altitude: 0

Coordinates may not be exact. Altitude is UNKNOWN and location is ADJUSTED. (more info)

Location:
In SAN FRANCISCO county, CA View Original Datasheet
Designation:
SAN FRANCISCO PAVILION FS
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

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Documented History (by the NGS)

01/01/1916 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1916 (EWE) A FLAGSTAFF ON TOP OF A LOW BUILDING OF MANY SIDES AND LOCATED AT THE END OF SLOAT BOULEVARD.
01/01/1944 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1944 (EHP) STATION DESTROYED. BUILDING HAS BEEN REMOVED.
01/01/1958 by CGS (MONUMENTED)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1958 (JCM) STATION IS IDENTIFIED, ON THE ENTRANCE TO SAN FRANCISCO BAY TRIANGULATION DIAGRAM, AS SAN FRANCISCO, FLAGPOLE. THIS INTERSECTION SHOULD BE CONSIDERED AS NO GOOD. THE BUILDING HAS BEEN RECONSTRUCTED. THIS IS AN INTERSECTION STATION.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in March 1994. The horizontal coordinates are valid at the epoch date displayed above. The epoch date for horizontal control is a decimal equivalence of Year/Month/Day.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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