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Details for Benchmark: AW5473

N 29° 27.433 W 095° 41.117 (NAD 83)

Altitude: 70.53

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

Location:
In FORT BEND county, TX View Original Datasheet
Designation:
H 1505
Marker Type:
metal rod
Setting:
stainless steel rod
Stability:
Probably hold position/elevation well.

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I suspect it's a goner. The area has changed a lot since Doc Geo found it.

Isn't there an old joke about having a gate but no fence? See picture.

[Photos:]
photoAW5473 H 1505

Recovered as described in good condition.

[Photos:]
photoAW5473
photoAW5473 setting

Documented History (by the NGS)

01/01/1987 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1987 16.5 KM (10.25 MI) NE FROM GUY. 12.3 KM (7.65 MI) NORTHEAST ALONG FM ROAD 1994 FROM THE JUNCTION OF STATE HIGHWAY 36 IN GUY, THENCE 4.2 KM (2.6 MI) NORTHEAST ALONG FM ROAD 762, 11.9 METERS (39.0 FT) NORTHEAST OF THE CENTERLINE OF THE ROAD, 7.3 METERS (24.0 FT) SOUTH OF THE CENTERLINE OF A FIELD ROAD, 0.6 METER (2.0 FT) SOUTH OF THE SOUTH POST OF A GATE, 0.3 METER (1.0 FT) SOUTHWEST OF A FENCE. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. THE MARK IS 0.3 METERS NW FROM A WITNESS POST THE MARK IS 0.7 M BELOW THE FM ROAD.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (DLL) RECOVERED IN GOOD CONDITION.
06/22/1996 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1996 RECOVERED IN GOOD CONDITION.
01/10/1998 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1998 RECOVERED IN GOOD CONDITION.
11/21/1998 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1998 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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