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Details for Benchmark: AX0038

N 29° 50.817 W 096° 19.733 (NAD 83)

Altitude: 303.74

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

Location:
In AUSTIN county, TX View Original Datasheet
Designation:
L 7
Marker Type:
chiseled square
Setting:
setting not listed - see description
Stability:
May hold, but of type commonly subject to surface motion.

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Recovered as described in good condition.

[Photos:]
photoAX0038 setting
photoAX0038

Documented History (by the NGS)

Unknown by CGS (MONUMENTED)
01/01/1973 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1973 0.2 MI W FROM CAT SPRING. 0.2 MILE WEST ALONG THE MISSOURI-KANSAS-TEXAS RAILROAD FROM THE CROSSING OF FARM ROAD 949 AT CAT SPRING, 2 1/2 POLES WEST OF MILE POLE 1024, 210 1/2 FEET WEST OF THE CENTER OF A PRIVATE ROAD CROSSING, 49.5 FEET SOUTH OF THE SOUTH RAIL OF THE MAIN TRACK, 126.0 FEET WEST OF THE NORTHWEST CORNER OF A WHITE FRAME HOUSE, 41 FEET EAST OF A TELEPHONE POLE, 3.8 FEET EAST OF A FENCE, 0.7 FOOT SOUTH OF A FENCE, 1.3 FEET WEST OF WITNESS POST, ABOUT 1 FOOT LOWER THAN THE TRACK, THE BOTTOM OF A SQUARE HOLE IN THE TOP OF A STONE POST PROJECTING 0.2 FOOT ABOVE THE GROUND.
01/01/1976 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 RECOVERED IN GOOD CONDITION.
01/01/1976 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1976 RECOVERED IN GOOD CONDITION.
01/01/1978 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978 ADD=IN THE NORTH CORNER OF GARDEN AREA.
01/01/1986 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986 RECOVERED IN GOOD CONDITION. THE 1973 DESCRIPTION IS ADEQUATE EXCEPT ADD--ALSO 0.32 KM (0.2 MI) WEST-NORTHWEST ALONG AN ASPHALT ROAD AND THE MISSOURI-KANSAS-TEXAS RAILROAD FROM THE JUNCTION OF FM ROAD 949 IN CAT SPRINGS.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (G = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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