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Details for Benchmark: KD0469

N 39° 20.967 W 093° 14.067 (NAD 83)

Altitude: 649.45

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

Location:
In CARROLL county, MO View Original Datasheet
Designation:
W 213
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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HH2 N39 20.974 W93 14.070

Report submitted to the NGS.

[Photos:]
photoKD0469 location
photoKD0469, Carroll Co, MO

Documented History (by the NGS)

01/01/1948 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1948 1.7 MI N FROM MIAMI. 1.7 MILE NORTH ALONG STATE HIGHWAY 41 FROM THE SOUTH END OF THE MIAMI TOLL BRIDGE AT MIAMI, IN THE SOUTHWEST END OF THE NORTHWEST ABUTMENT OF HIGHWAY BRIDGE OVER WAKENDA CHUTE, 14.0 FEET SOUTHWEST OF THE CENTER LINE OF THE HIGHWAY, 1.0 FOOT NORTHEAST OF THE SOUTHWEST END OF THE ABUTMENT.
01/01/1964 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1964 RECOVERED IN GOOD CONDITION.
01/01/1990 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1990 (RCC) 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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