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Details for Benchmark: DC0851

N 32° 44.900 W 117° 09.367 (NAD 83)

Altitude: 292.1

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

Location:
In SAN DIEGO county, CA View Original Datasheet
Designation:
283.72 C OF SD
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:
Mark of questionable or unknown stability.

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I'm going to log this as a DNF. The location is marked with paint and covered by a little dirt, I believe that this Mark may have been pulled when the new sidewalk was poured.

[Photos:]
photoDC0851 283.72 location

Got to agree with Fort Rectus on this one. I have been to the area four times now. There is not even remains of a post in the sidewalk. I think I found part of an old concrete base on the south side of the sidewalk but it was covered in dirt. I checked for any type of disk and none could be found. It looked like there may have been a circular hole, or part of one in the concrete but it was to badly damaged to tell. I used a metal detector also with no luck. I think its gone

The directions are accurate, but the benchmark is almost completely destroyed. At the joint where the old sidewalk meets the new sidewalk you can see the remains of the post that supported the benchmark and that area still has mark-out paint from earlier survey parties. Thanks, Fort Rectus

Documented History (by the NGS)

Unknown by CA3260 (MONUMENTED)
01/01/1955 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1955 AT SAN DIEGO. AT SAN DIEGO, 0.2 MILE EAST ALONG UNIVERSITY AVENUE FROM THE INTERSECTION OF FIFTH AVENUE, AT THE INTERSECTION OF NINTH AVENUE, 27.4 FEET SOUTH OF THE SOUTHWEST CORNER OF A FIRE STATION, 62.5 FEET WEST OF THE WEST CURB OF NINTH AVENUE, 25 1/2 FEET WEST OF THE CENTER OF THE SIDEWALK LEADING TO THE FIRE STATION, 4.9 FEET NORTH OF THE NORTH CURB OF UNIVERSITY AVENUE, ABOUT 1/2 FOOT HIGHER THAN THE AVENUE, AND IN THE SIDEWALK.
01/01/1990 by USPSQD (POOR)
RECOVERY NOTE BY US POWER SQUADRON 1990 (JBC) MARK RECOVERED IN POOR 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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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.

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