Details for Benchmark: HC0226
N 37° 14.200 W 090° 42.167 (NAD 83)
Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)
- In WAYNE county, MO View Original Datasheet
- RV 163
- Marker Type:
- set into the top of a round concrete monument
- May hold, but of type commonly subject to surface motion.
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Documented History (by the NGS)
|Unknown by MPRR (MONUMENTED)
|01/01/1935 by NGS (GOOD)
|DESCRIBED BY NATIONAL GEODETIC SURVEY 1935
0.4 MI S FROM GADS HILL. 0.4 MILE SOUTH ALONG THE MISSOURI PACIFIC RAILROAD FROM THE STATION AT GADS HILL, AT POLE 120/26, ON THE EAST SIDE OF THE TRACK, AT BLOCK SIGNAL 1204, AND IN THE TOP OF THE NORTHWEST CORNER OF THE CONCRETE BASE. A STANDARD MONEL-METAL RIVET.
|01/01/1966 by USGS (MARK NOT FOUND)
|RECOVERY NOTE BY US GEOLOGICAL SURVEY 1966
MARK NOT FOUND.
- 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.