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Details for Benchmark: AX2305

N 29° 41.600 W 097° 30.900 (NAD 83)

Altitude: 458

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

Location:
In CALDWELL county, TX View Original Datasheet
Designation:
G 830
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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Recovered as described in good condition.

[Photos:]
photoAX2305
photoAX2305 setting

Documented History (by the NGS)

01/01/1943 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1943 2 MI N FROM HARWOOD. IN CALDWELL COUNTY, 2.0 MILES NORTH ALONG A GRADED DIRT ROAD FROM THE PUBLIC SCHOOL AT HARWOOD, GONZALES COUNTY, 0.3 MILE NORTH OF A LARGE FARMHOUSE ON THE WEST SIDE OF THE ROAD, AT A SMALL JOG IN THE ROAD, 63 FEET SOUTH OF A DIVISION-FENCE CORNER, 27 FEET WEST OF THE CENTERLINE OF THE ROAD, 1 FOOT EAST OF THE RIGHT-OF-WAY FENCE, 3 FEET NORTH OF A WHITE WOODEN WITNESS POST, AND ABOUT 1 FOOT HIGHER THAN THE ROAD. A STANDARD DISK, STAMPED G 830 1943 AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.6 FOOT ABOVE GROUND.
08/08/1993 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1993 (UNK) 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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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.

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