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Details for Benchmark: AW2166

N 29° 45.183 W 095° 50.117 (NAD 83)

Altitude: 132.09

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

Location:
In FORT BEND county, TX View Original Datasheet
Designation:
C 806 X
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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Found today in cold icy weather.
N 29 45.165 W 95 50.133

[Photos:]
photoAW2166 benchmark
photoBenchmark and marker
Showing its location relative to its marker
photobroader picture of the area

Recovered as described in good condition.

[Photos:]
photoAW2166
photoAW2166 in relation to witness post
photoAW2166 setting

Visited to take the pictures the previous person didn't.

[Photos:]
photoDisk Closeup
photoDisk Area

Found in good condition. Mark is 1 inch below ground level and buried in brush. Power Pole 333 is now 4-ft high stump--current power poles are newer than 1973. Witness post is laying down over mark. Note that Pin Oak Road is now Katy-Flewellen Road.

Documented History (by the NGS)

01/01/1943 by CGS (MONUMENTED)
01/01/1973 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1973 2.75 MI S FROM KATY. 2.75 MILES SOUTH ALONG PIN OAK ROAD FROM THE MISSOURI, KANSAS-TEXAS RAILROAD STATION AT KATY, 0.15 MILE SOUTHWEST OF THE JUNCTION OF GASTON ROAD SOUTHEAST, 3 POWER POLES NORTHEAST OF A POWER POLE BEARING A TRANSFORMER, 35 1/2 FEET NORTHWEST OF THE CENTER LINE OF THE ROAD, 4 1/2 FEET NORTHWEST OF POWER POLE 333, 5.0 FEET SOUTHEAST OF A FENCE, 1.4 FEET NORTHEAST OF A WITNESS POST, ABOUT LEVEL WITH THE ROAD, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 0.1 FOOT ABOVE THE GROUND.
01/01/1978 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1978 RECOVERED IN GOOD CONDITION.
01/01/1986 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1986 RECOVERED IN GOOD CONDITION EXCEPT THE STAMPING IS C 806 X 1943.
06/25/1994 by USPSQD (MARK NOT FOUND)
RECOVERY NOTE BY US POWER SQUADRON 1994 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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