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Details for Benchmark: HS3129

N 37° 17.133 W 121° 56.650 (NAD 83)

Altitude: 204.5

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

Location:
In SANTA CLARA county, CA View Original Datasheet
Designation:
WELL 1 CWW RESET
Marker Type:
chiseled cross
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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The old pump house is still in place. I've been here many times but today I took a closer look and it does seem that there used to be a doorway in the correct place on the north side near the NE corner, but it's been remodeled and plastered over. It looks pretty clear where it was in the photo I'm uploading.

I bet that if someone really needed to, the mark location could be recreated within a couple of inches at most, but to be conservative I'm calling this a DNF, and not a find or destroyed.

Other photos of the pumphouse are available online, including in Google Street View and a good shot of the front (west) side on my Downtown Campbell Walking Tour multi.

[Photos:]
photoPlaque mentioning pumphouse
photoFormer doorway, now a vent in wall
I tweaked the levels to emphasize what appears to be the cracks along the old doorway outline. It looks like it had been a covered doorway too.

The buildings and pumps described in the history no longer exist. A public park is in it's place. (Benchmark HS3130 exists in this park.) I believe this benchmark to be destroyed.

Documented History (by the NGS)

Unknown by CA0537 (MONUMENTED)
01/01/1954 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1954 AT CAMPBELL. AT CAMPBELL, AT THE T JUNCTION OF FIRST AND EVERETT STREETS, AT THE CAMPBELL WATER COMPANY, IN THE TOP OF THE PORCH FOR THE NORTH ENTRANCE TO THE PUMPHOUSE, 3.9 FEET SOUTH OF THE SOUTHEAST CORNER OF THE BASE OF PUMP NO. 1, 3.0 FEET WEST OF THE NORTHEAST CORNER OF THE PUMPHOUSE, 0.8 FOOT EAST OF THE EAST DOOR FACING, AND 0.2 FOOT NORTH OF THE NORTH WALL.
01/01/1967 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1967 RECOVERED IN GOOD CONDITION.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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.