Details for Benchmark: CP0313
N 32° 17.517 W 090° 10.917 (NAD 83)
Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)
- In HINDS county, MS View Original Datasheet
- Q 224
- Marker Type:
- bench mark disk
- copper-clad steel rod
- Probably hold position/elevation well.
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Documented History (by the NGS)
|01/01/1968 by CGS (MONUMENTED)
|01/01/1977 by MSHD (GOOD)
|DESCRIBED BY MISSISSIPPI STATE HIGHWAY DEPARTMENT 1977
IN JACKSON. THE MARK IS LOCATED 0.6 MILE SOUTHEAST OF THE CENTER OF JACKSON JUST INSIDE THE FENCE AROUND THE JACKSON PUBLIC SCHOOLS MAINTENANCE SHOP AND WAREHOUSE ABOUT MIDWAY BETWEEN SOUTH STREET AND SILAS BROWN STREET NEAR THE WEST RIGHT OF WAY OF STATE STREET IN THE NORTHEAST 1/4 OF SECTION 10, T 5N, R 1E. THE 1968 LOCAL MEASUREMENTS CHECKED. NOTE-- TO REACH FROM THE OLD CAPITOL AT THE EAST END OF CAPTIOL STREET IN JACKSON GO SOUTH ON STATE STREET FOR 0.55 MILE TO THE MARK ON THE RIGHT.
|01/01/1990 by USPSQD (GOOD)
|RECOVERY NOTE BY US POWER SQUADRON 1990 (GGB)
RECOVERED IN GOOD CONDITION.
|06/11/1992 by NGS (GOOD)
|RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1992
IN JACKSON, 14.2 M (46.6 FT) SOUTH OF THE SOUTHEAST CORNER OF THE JACKSON SCHOOL ADMINISTRATION OFFICE AT 661 SOUTH STATE STREET, 10.3 M (33.8 FT) WEST OF THE STREET CENTER, 5.3 M (17.4 FT) SOUTH OF THE CENTER OF A GATE AND DRIVEWAY, 3.7 M (12.1 FT) NORTH OF THE NORTHEAST CORNER OF A BRICK BUILDING, 0.8 M (2.6 FT) EAST OF THE EAST EDGE OF A SIDEWALK, 0.5 M (1.6 FT) WEST OF WEST EDGE OF A SIDEWALK, 0.4 M (1.3 FT) WEST OF A FENCE, AND 0.3 M (1.0 FT) ABOVE THE LEVEL OF THE STREET. NOTE--THE DISK IS ENCASED IN A 6-INCH METAL PIPE AND IS RECESSED 0.2M BELOW THE GROUND SURFACE.
- 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.