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Details for Benchmark: FH0218

N 35° 23.383 W 094° 26.967 (NAD 83)

Altitude: 416.99

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

Location:
In SEQUOYAH county, OK View Original Datasheet
Designation:
Y 76
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Out doing a little benchmarking with BasicPoke and grabbed this one.

Found today as described. Will post pictures.

[Photos:]
photoFH0218
photoMoffet School
N 35° 23.407 W 094° 26.975

An interesting old structure in an old town with one cop and a radar gun. I received my first speeding ticket ever, in Moffett back in 1978. The benchmark is in good shape and well protected. The coordinates associated with this post are derived from GoogleEarth.

[Photos:]
photoFH0218 Close-up
photoFH0218 Setting
photoFH0218 Scene
N 35° 23.407 W 094° 26.976

Found as described. This is a pretty neat old school building.

[Photos:]
photoFront of School
photoFront Door of School with Marker
photoBenchmark

Documented History (by the NGS)

01/01/1940 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1940 AT MOFFETT. AT MOFFETT. BENCH MARK IS AT MAIN ENTRANCE OF MOFFETT SCHOOL BUILDING, 4.4 FEET EAST OF CENTER LINE OF ENTRANCE, 1 FOOT NORTH OF NORTH WALL OF BUILDING. HORIZONTAL DISK SET FLUSH.
01/01/1959 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1959 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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