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Details for Benchmark: AX2219

N 29° 46.933 W 097° 40.833 (NAD 83)

Altitude: 419

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

Location:
In CALDWELL county, TX View Original Datasheet
Designation:
M 821 RESET 1962
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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Recovered in good condition.

[Photos:]
photoAX2219
photoAX2219 setting

Documented History (by the NGS)

01/01/1962 by TXHD (MONUMENTED)
DESCRIBED BY TEXAS HIGHWAY DEPARTMENT 1962 0.9 MI N FROM JOLIET. 0.9 MILE NORTH ALONG F.M. HIGHWAY NO. 671 FROM JOLIET, AT CONCRETE BRIDGE OVER WEST FORK OF PLUM CREEK IN THE EAST WING OF THE NORTH ABUTMENT, 14 FEET LEFT OF THE CENTERLINE OF THE HIGHWAY.
07/14/1987 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1987 (RV) RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (DLP) 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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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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