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Details for Benchmark: GF1003

N 36° 54.533 W 093° 55.650 (NAD 83)

Altitude: 1337.34

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

Location:
In BARRY county, MO View Original Datasheet
Designation:
L 348
Marker Type:
metal rod
Setting:
stainless steel rod
Stability:
Most reliable and expected to hold position/elevation well.

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MARK FOUND IN GOOD CONDITION.
NGS REPORT TO FOLLOW.

FOR THE CONTEST.

[Photos:]
photoGF1003 L 348
BENCHMARK L 348
photoGF1003 L 348 GPS N
BENCHMARK L 348 GPS LOOKING NORTH
photoGF1003 EAST
LOOKING EAST FROM L 348
photoGF1003 L 348 CLOSE
GF1003 L 348 CLOSE-UP

Found this one in good condition as described.

[Photos:]
photoL 348.JPG

Monument in Good shape.

[Photos:]
photoL 348 Vertical Control
Monument in good shape.
photoL 348 Vertical Control
Just North of the mark in the Park.
photoL 348 Vertical Control and Witness post.
Witness post and mark.

Documented History (by the NGS)

01/01/1989 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1989 0.6 KM (0.35 MI) SOUTHERLY ALONG STATE HIGHWAY 37 FROM ITS JUNCTION WITH U.S. HIGHWAY 60 IN MONETT, 28.0 M (91.9 FT) EAST OF THE CENTERLINE OF THE HIGHWAY, 5.7 M (18.7 FT) NORTH OF UTILITY POLE NUMBER 10, 2.0 M (6.6 FT) ABOVE THE LEVEL OF THE HIGHWAY, 0.3 M (1.0 FT) SOUTHWEST OF A WITNESS POST, AND 0.2 M (0.7 FT) WEST OF A FENCE. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP.

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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