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Details for Benchmark: AX2120

N 29° 55.667 W 097° 32.733 (NAD 83)

Altitude: 498.2

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

Location:
In CALDWELL county, TX View Original Datasheet
Designation:
A 785
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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Very nice to be the first one to log this since it was monumented in 1943... Still in good condition.

[Photos:]
photoAX2120 setting
photoAX2120

Documented History (by the NGS)

01/01/1943 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1943 1.1 MI E FROM DALE. 1.1 MILES EAST ALONG THE MISSOURI-KANSAS-TEXAS RAILROAD FROM THE STATION AT DALE, CALDWELL COUNTY, 0.1 MILE EAST OF A ROAD CROSSING, AT THE EAST END OF A SHALLOW CUT, 49 FEET NORTH OF THE CENTERLINE OF THE TRACK, 1 FOOT SOUTH OF THE RIGHT-OF-WAY FENCE, 3 FEET WEST OF A WHITE WOODEN WITNESS POST, AND ABOUT LEVEL WITH THE TRACK. A STANDARD DISK, STAMPED A 785 1943 AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.6 FOOT ABOVE GROUND.

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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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