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Details for Benchmark: CS1818

N 32° 44.183 W 097° 06.417 (NAD 83)

Altitude: 613.62

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

Location:
In TARRANT county, TX View Original Datasheet
Designation:
PTS 11 S
Marker Type:
survey disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Buildings are long gone. The step the benchmark is supposed to be on has been destroyed. A municipal building and public library surround this location.

Documented History (by the NGS)

01/01/1925 by USGS (MONUMENTED)
01/01/1961 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1961 IN ARLINGTON. AT ARLINGTON, TARRANT COUNTY, ONE BLOCK SOUTH OF THE TEXAS AND PACIFIC RAILWAY STATION, AT THE EAST ENTRANCE TO THE L AND M DRUG STORE, IN THE TOP OF THE NORTH END OF THE ONLY CONCRETE STEP AT THE ENTRANCE AND 7.7 FEET SOUTH OF THE NORTHEAST CORNER OF THE BUILDING.
01/01/1986 by NGS (MARK NOT FOUND)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986 MARK NOT FOUND.
01/01/1990 by USPSQD (MARK NOT FOUND)
RECOVERY NOTE BY US POWER SQUADRON 1990 (GF) MARK NOT FOUND.
09/21/1996 by USPSQD (MARK NOT FOUND)
RECOVERY NOTE BY US POWER SQUADRON 1996 MARK NOT FOUND.

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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