FD0704--BENCHMARK DISK COLUMBIA ACADEMY #2 - U.S. Benchmarks on Waymarking.com

N 35° 37.017 W 087° 03.400 (NAD 83)
Altitude: 650.97
Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)

Designation: K 9
Marker Type: bench mark disk
Setting: massive structures
Stability: Probably hold position/elevation well.



Documented History (by the NGS)
1/1/1931 by CGS (MONUMENTED)

1/1/1949 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1949 AT COLUMBIA. AT COLUMBIA, ABOUT 1.3 MILES NORTHWEST ALONG THE LOUISVILLE AND NASHVILLE RAILROAD FROM THE STATION AT COLUMBIA, AT THE WEST CITY LIMITS, AT THE CROSSING OF STATE HIGHWAY 99, SET VERTICALLY IN THE EAST FACE AT THE NORTHEAST CORNER OF THE COLUMBIA MILITARY ACADEMY, 1 1/2 FEET SOUTH OF THE NORTHEAST CORNER AND ABOUT 5 FEET ABOVE THE GROUND.
1/1/1963 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1963 RECOVERED IN GOOD CONDITION.
1/1/1983 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1983 RECOVERED IN GOOD CONDITION.
6/30/1987 by LOCENG (GOOD)
RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1987 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.

Condition: Mark found in good condition Designation: K 9 Benchmark Agency: U.S. Coast & Geodetic Survey and State Survey Monumentation type: BENCH MARK (or B.M.) Disk County: MAURY COUNTY Find type: Coordinates and/or to-reach information from the NGS database (or Geocaching's copy of it) were used Web address of this benchmark's datasheet (optional): [Web Link] NGS PID: FD0704 Benchmark Agency (if other): Not listed Monumentation type (if other): Not listed USGS 7.5' Topographic Quadrangle Name (optional): Not listed Special category (optional): Not listed Special Category (if other): Not listed Local database's URL (optional): Not listed

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