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Details for Benchmark: KD0377

N 39° 21.883 W 093° 11.283 (NAD 83)

Altitude: 642.03

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

Location:
In SALINE county, MO View Original Datasheet
Designation:
G 224
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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Documented History (by the NGS)

01/01/1948 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1948 4 MI NE FROM MIAMI. 0.05 MILE SOUTH ALONG STATE HIGHWAY 41 FROM THE SOUTH END OF THE MIAMI TOLL BRIDGE ACROSS THE MISSOURI RIVER AT MIAMI, THENCE 1.0 MILE NORTHEAST, 0.7 MILE NORTH, 0.25 MILE EAST, 0.6 MILE NORTH, 0.4 MILE EAST AND 1.0 MILE NORTH ALONG DIRT ROADS, AT A VACANT HOUSE OWNED BY O.K. FRANKLIN, BETWEEN 2 20-INCH BOX ELDER TREES WHICH ARE 10.0 FEET APART, 22.0 FEET EAST OF THE CENTER LINE OF THE ROAD, 22.8 FEET WEST OF THE NORTHWEST CORNER OF THE HOUSE, 3.0 FEET EAST OF A REFERENCE POST, SET IN THE TOP OF A CONCRETE POST PROJECTING 0.4 FOOT ABOVE THE GROUND.

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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