1 National Geodetic Survey, Retrieval Date = FEBRUARY 8, 2005 CK0723 *********************************************************************** CK0723 DESIGNATION - A 11 CK0723 PID - CK0723 CK0723 STATE/COUNTY- SC/BEAUFORT CK0723 USGS QUAD - HILTON HEAD (1971) CK0723 CK0723 *CURRENT SURVEY CONTROL CK0723 ___________________________________________________________________ CK0723* NAD 83(1986)- 32 10 49. (N) 080 43 26. (W) SCALED CK0723* NAVD 88 - 4.692 (meters) 15.39 (feet) ADJUSTED CK0723 ___________________________________________________________________ CK0723 GEOID HEIGHT- -31.73 (meters) GEOID03 CK0723 DYNAMIC HT - 4.687 (meters) 15.38 (feet) COMP CK0723 MODELED GRAV- 979,493.5 (mgal) NAVD 88 CK0723 CK0723 VERT ORDER - FIRST CLASS II CK0723 CK0723.The horizontal coordinates were scaled from a topographic map and have CK0723.an estimated accuracy of +/- 6 seconds. CK0723 CK0723.The orthometric height was determined by differential leveling CK0723.and adjusted by the National Geodetic Survey in June 1991. CK0723 CK0723.The geoid height was determined by GEOID03. CK0723 CK0723.The dynamic height is computed by dividing the NAVD 88 CK0723.geopotential number by the normal gravity value computed on the CK0723.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 CK0723.degrees latitude (g = 980.6199 gals.). CK0723 CK0723.The modeled gravity was interpolated from observed gravity values. CK0723 CK0723; North East Units Estimated Accuracy CK0723;SPC SC - 38,520. 635,640. MT (+/- 180 meters Scaled) CK0723 CK0723 SUPERSEDED SURVEY CONTROL CK0723 CK0723 NGVD 29 (03/21/89) 4.973 (m) 16.32 (f) ADJUSTED 1 2 CK0723 CK0723.Superseded values are not recommended for survey control. CK0723.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. CK0723.See file dsdata.txt to determine how the superseded data were derived. CK0723 CK0723_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SNR260604(NAD 83) CK0723_MARKER: DB = BENCH MARK DISK CK0723_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT CK0723_STAMPING: A 11 1956 CK0723_MARK LOGO: CGS CK0723_PROJECTION: PROJECTING 10 CENTIMETERS CK0723_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO CK0723+STABILITY: SURFACE MOTION CK0723_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR CK0723+SATELLITE: SATELLITE OBSERVATIONS - September 30, 2004 CK0723 CK0723 HISTORY - Date Condition Report By CK0723 HISTORY - 1956 MONUMENTED CGS CK0723 HISTORY - 1972 GOOD LOCENG CK0723 HISTORY - 1981 GOOD SCGS CK0723 HISTORY - 1988 GOOD USPSQD CK0723 HISTORY - 1990 GOOD USPSQD CK0723 HISTORY - 20020615 MARK NOT FOUND USPSQD CK0723 HISTORY - 20040930 GOOD GEOCAC CK0723 CK0723 STATION DESCRIPTION CK0723 CK0723'DESCRIBED BY COAST AND GEODETIC SURVEY 1956 CK0723'6.8 MI SE FROM HILTON HEAD. CK0723'ABOUT 6.75 MILES EAST, NORTHEAST, AND SOUTHEAST AND SOUTHWEST CK0723'ALONG STATE HIGHWAY 46 FROM THE POST OFFICE AT HILTON HEAD, CK0723'ABOUT 0.75 MILE NORTHEAST OF ROADSIDE REST RESTAURANT, 33 FEET CK0723'SOUTHEAST OF CENTER LINE OF HIGHWAY, 224 FEET NORTHEAST OF CK0723'CENTER OF JUNCTION OF HIGHWAY AND A TRAIL LEADING NORTHWEST, 107 CK0723'FEET SOUTH OF CENTER OF JUNCTION OF A DRIVE NORTHWEST (THE CK0723'ENTRANCE IS FLANKED BY 6 LOW CONCRETE POSTS), 2 FEET NORTHWEST CK0723'OF A POWER POLE, ABOUT 1 FOOT ABOVE LEVEL OF HIGHWAY AND SET CK0723'IN THE TOP OF A CONCRETE POST PROJECTING 3 INCHES. CK0723 CK0723 STATION RECOVERY (1972) CK0723 CK0723'RECOVERY NOTE BY LOCAL ENGINEER (INDIVIDUAL OR FIRM) 1972 CK0723'RECOVERED IN GOOD CONDITION. CK0723 CK0723 STATION RECOVERY (1981) CK0723 CK0723'RECOVERY NOTE BY SOUTH CAROLINA GEODETIC SURVEY 1981 CK0723'10.0 KILOMETERS (6.2 MILES) EAST AND SOUTH ALONG U.S. HIGHWAY 278 CK0723'FROM THE POST OFFICE ON THE NORTH END OF HILTON HEAD, SET BY THE CK0723'FIRST POWER POLE NORTHEAST OF A SMALL RIVER UNDER THE ROAD, 10.05 CK0723'METERS (33.0 FEET) SOUTH SOUTHEAST OF THE CENTER LINE OF THE HIGHWAY CK0723'278 NORTHEAST BOUND LANE, 16.6 METERS (54.5 FEET) NORTHEAST OF THE CK0723'NORTHEAST END OF A GUARD RAIL FOR THE BRIDGE, 1.05 METERS (3.5 FEET) CK0723'WEST OF A POWER LINE POLE, 1.35 METERS (4.5 FEET) NORTH NORTHWEST CK0723'OF A RAIL FENCE, 3.55 METERS (11.7 FEET) NORTH NORTHWEST OF A CK0723'TELEPHONE JUNCTION BOX. CK0723'THE MARK IS ABOVE LEVEL WITH HIGHWAY. CK0723 CK0723 STATION RECOVERY (1988) CK0723 CK0723'RECOVERY NOTE BY US POWER SQUADRON 1988 (LFH) CK0723'RECOVERED IN GOOD CONDITION. CK0723 CK0723 STATION RECOVERY (1990) CK0723 CK0723'RECOVERY NOTE BY US POWER SQUADRON 1990 (LFH) CK0723'RECOVERED IN GOOD CONDITION. CK0723 CK0723 STATION RECOVERY (2002) CK0723 CK0723'RECOVERY NOTE BY US POWER SQUADRON 2002 (LFH) CK0723'NOT FOUND. SEARCHED NEAR PP AND TELEPHONE JUNCTION BOX WITH MICRONTA CK0723'4001. CK0723 CK0723 STATION RECOVERY (2004) CK0723 CK0723'RECOVERY NOTE BY GEOCACHING 2004 (BB) CK0723'RECOVERED IN GOOD CONDITION.