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Details for Benchmark: AX2199

N 29° 47.133 W 097° 34.983 (NAD 83)

Altitude: 392.3

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

Location:
In CALDWELL county, TX View Original Datasheet
Designation:
L 789
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 in fair condition.

[Photos:]
photoAX2199
photoAX2199 setting

Documented History (by the NGS)

01/01/1943 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1943 5.8 MI SW FROM MCMAHAN. 0.1 MILE WEST ALONG A PAVED ROAD LEADING TO LOCKHART FROM THE PUBLIC SCHOOL AT MCMAHAN, CALDWELL COUNTY, THENCE 5.7 MILES SOUTHWEST ALONG A GRADED ROAD LEADING TO LULING. AT A DIVISION-FENCE CORNER, 50 FEET WEST OF THE CENTERLINE OF THE ROAD, 7 FEET NORTHEAST OF THE FENCE CORNER, 3 FEET SOUTHWEST OF A WHITE WOODEN WITNESS POST, AND LEVEL WITH THE ROAD. A STANDARD DISK, STAMPED L 789 1943 AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.5 FOOT ABOVE GROUND.
01/01/1990 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1990 (DLP) RECOVERED IN GOOD CONDITION.
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  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.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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