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Details for Benchmark: AW2159

N 29° 41.733 W 095° 49.867 (NAD 83)

Altitude: 127.37

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

Location:
In FORT BEND county, TX View Original Datasheet
Designation:
F 1280
Marker Type:
bench mark disk
Setting:
stainless steel rod
Stability:
Probably hold position/elevation well.

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Recovered as described in good condition.

[Photos:]
photoAW2159
photoAW2159 setting

Documented History (by the NGS)

01/01/1978 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1978 4.1 MI EAST FROM FULSHEAR. ABOUT 4.1 MILES EAST ALONG FARM ROAD 1093 FROM THE SOUTHERN PACIFIC RAILROAD STATION IN FULSHEAR. ALSO 0.8 MILE EAST OF THE JUNCTION OF FARM ROADS 359 AND 1463, 59 FEET NORTH OF THE CENTERLINE OF THE ROAD, 43 FEET EAST OF A FENCE CORNER, 16 FEET EAST OF THE CENTERLINE OF A FIELD ROAD WITH A WIRE GATE LEADING NORTH, 1.5 FEET EAST OF A POWER POLE, AND 1 FOOT SOUTH OF A FENCE.
01/01/1986 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986 RECOVERED IN GOOD CONDITION EXCEPT ADD THE MARK IS 0.3 METERS S FROM A WITNESS POST
01/01/1990 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1990 (WHA) RECOVERED IN GOOD CONDITION.
12/04/1993 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1993 RECOVERED IN GOOD CONDITION.
10/10/1995 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1995 RECOVERED IN GOOD CONDITION.

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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