| Benchmark "BM 1043" on USGS map is NGS benchmark "GA2878"
(elevation 1043'), which is located at the former Knox Fork School. Datasheet from the National Geodetic Survey |
1 National Geodetic Survey, Retrieval Date = AUGUST 13, 2003 GA2878 *********************************************************************** GA2878 DESIGNATION - S 203 GA2878 PID - GA2878 GA2878 STATE/COUNTY- KY/KNOX GA2878 USGS QUAD - HEIDRICK (1974) GA2878 GA2878 *CURRENT SURVEY CONTROL GA2878 ___________________________________________________________________ GA2878* NAD 83(1986)- 36 58 58. (N) 083 55 46. (W) SCALED GA2878* NAVD 88 - 317.842 (meters) 1042.79 (feet) ADJUSTED GA2878 ___________________________________________________________________ GA2878 GEOID HEIGHT- -30.30 (meters) GEOID99 GA2878 DYNAMIC HT - 317.582 (meters) 1041.93 (feet) COMP GA2878 MODELED GRAV- 979,805.7 (mgal) NAVD 88 GA2878 GA2878 VERT ORDER - SECOND CLASS 0 GA2878 GA2878.The horizontal coordinates were scaled from a topographic map and have GA2878.an estimated accuracy of +/- 6 seconds. GA2878 GA2878.The orthometric height was determined by differential leveling GA2878.and adjusted by the National Geodetic Survey in June 1991. GA2878 GA2878.The geoid height was determined by GEOID99. GA2878 GA2878.The dynamic height is computed by dividing the NAVD 88 GA2878.geopotential number by the normal gravity value computed on the GA2878.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 GA2878.degrees latitude (g = 980.6199 gals.). GA2878 GA2878.The modeled gravity was interpolated from observed gravity values. GA2878 GA2878; North East Units Estimated Accuracy GA2878;SPC KY1Z - 1,073,660. 1,662,080. MT (+/- 180 meters Scaled) GA2878 GA2878 SUPERSEDED SURVEY CONTROL GA2878 GA2878 NGVD 29 - 317.995 (m) 1043.29 (f) ADJ UNCH 2 0 GA2878 GA2878.Superseded values are not recommended for survey control. GA2878.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. GA2878.See file dsdata.txt to determine how the superseded data were derived. GA2878 GA2878_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SKA392969(NAD 83) GA2878_MARKER: DB = BENCH MARK DISK GA2878_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT GA2878_STAMPING: S 203 1950 1043.289 GA2878_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO GA2878+STABILITY: SURFACE MOTION GA2878 GA2878 HISTORY - Date Condition Report By GA2878 HISTORY - 1950 MONUMENTED CGS GA2878 HISTORY - 1957 GOOD NGS GA2878 GA2878 STATION DESCRIPTION GA2878 GA2878'DESCRIBED BY COAST AND GEODETIC SURVEY 1950 GA2878'3.2 MI NW FROM JARVIS STORE. GA2878'0.4 MILE NORTH ALONG STATE HIGHWAY 231 FROM THE POST OFFICE AT GA2878'JARVIS STORE, THENCE ABOUT 2.75 MILES NORTHWEST ALONG STATE HIGHWAY GA2878'229, AT KNOX FORK SCHOOL, AT THE SOUTHEAST CORNER OF A STONE WALL GA2878'AROUND BASKET BALL COURT, 66 FEET WEST OF THE CENTER LINE OF THE GA2878'HIGHWAY, 29 FEET SOUTHEAST OF THE SOUTHEAST CORNER OF THE STONE GA2878'SCHOOL BUILDING, 51 FEET SOUTH OF A DRILLED WELL, 36 FEET WEST OF GA2878'THE WEST END OF A 40-INCH PIPE CULVERT, 1 FOOT NORTHEAST OF THE GA2878'SOUTHEAST CORNER OF STONE WALL, ABOUT 15 FEET BELOW THE HIGHWAY GA2878'AND SET IN THE TOP OF A CONCRETE POST PROJECTING 4 INCHES. GA2878 GA2878 STATION RECOVERY (1957) GA2878 GA2878'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1957 GA2878'RECOVERED IN GOOD CONDITION. |