1 National Geodetic Survey, Retrieval Date = OCTOBER 7, 2002 EA3063 *********************************************************************** EA3063 DESIGNATION - 865 8120 C TIDAL RM 1 EA3063 PID - EA3063 EA3063 STATE/COUNTY- NC/BRUNSWICK EA3063 USGS QUAD - WILMINGTON (1979) EA3063 EA3063 *CURRENT SURVEY CONTROL EA3063 ___________________________________________________________________ EA3063* NAD 83(1986)- 34 13 31.49875(N) 077 57 21.37221(W) ADJUSTED EA3063* NAVD 88 - 1.64 (meters) 5.4 (feet) N HEIGHT EA3063 ___________________________________________________________________ EA3063 LAPLACE CORR- -4.89 (seconds) DEFLEC99 EA3063 GEOID HEIGHT- -36.73 (meters) GEOID99 EA3063 DYNAMIC HT - 1.64 (meters) 5.4 (feet) COMP EA3063 MODELED GRAV- 979,653.8 (mgal) NAVD 88 EA3063 EA3063 HORZ ORDER - THIRD EA3063 VERT ORDER - THIRD EA3063 EA3063.The North Carolina/South Carolina HARNS have been completed but, EA3063.due to contractual restrictions, coordinates for these stations EA3063.will NOT be published in the near future. In the interim, the EA3063.published coordinates in North and South Carolina will not be EA3063.consistent with the Continuously Operating Reference Stations EA3063.(CORS). The HARN coordinates for these stations are available EA3063.upon request. Contact Gary Thompson(919-733-3836), or Lewis EA3063.Lapine(803-896-7700). EA3063. EA3063.In addition, the published North and South Carolina positions EA3063.(NAD 83 (1986)) are NOT consistent with those determined in EA3063.adjacent state readjustments. The discontinuity between stations EA3063.located in North or South Carolina and those in adjacent states EA3063.which have been adjusted to the HARN may be as much as 5 EA3063.decimeters. This will result in a significant loss of accuracy EA3063.over lines crossing such state borders. EA3063 EA3063 EA3063.The horizontal coordinates were established by GPS observations EA3063.and adjusted by the National Geodetic Survey in January 1989. EA3063 EA3063.The orthometric height was determined by differential leveling EA3063.and adjusted by the National Geodetic Survey in August 1996. EA3063.The height was determined by precise leveling from only one NSRS EA3063.bench mark. This was not adequate "tie leveling" to NSRS and was EA3063.allowed ONLY to validate the GPS-derived height. EA3063 EA3063.The Laplace correction was computed from DEFLEC99 derived deflections. EA3063 EA3063.The geoid height was determined by GEOID99. EA3063 EA3063.The dynamic height is computed by dividing the NAVD 88 EA3063.geopotential number by the normal gravity value computed on the EA3063.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 EA3063.degrees latitude (g = 980.6199 gals.). EA3063 EA3063.The modeled gravity was interpolated from observed gravity values. EA3063 EA3063; North East Units Scale Converg. EA3063;SPC NC - 53,246.246 705,802.522 MT 1.00003163 +0 36 09.4 EA3063;UTM 18 - 3,791,102.888 227,704.099 MT 1.00051407 -1 39 48.9 EA3063;UTM 17 - 3,791,342.267 780,416.755 MT 1.00056941 +1 42 47.7 EA3063 EA3063 SUPERSEDED SURVEY CONTROL EA3063 EA3063 NAD 27 - 34 13 30.89180(N) 077 57 22.42165(W) AD( ) 3 EA3063 NGVD 29 - 1.9 (m) 6. (f) GPS OBS EA3063 EA3063.Superseded values are not recommended for survey control. EA3063.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. EA3063.See file dsdata.txt to determine how the superseded data were derived. EA3063 EA3063_MARKER: DR = REFERENCE MARK DISK EA3063_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT EA3063_STAMPING: 8120 C 1976 NO 1 1986 EA3063_MARK LOGO: NGS EA3063_MAGNETIC: N = NO MAGNETIC MATERIAL EA3063_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO EA3063+STABILITY: SURFACE MOTION EA3063_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR EA3063+SATELLITE: SATELLITE OBSERVATIONS - June 27, 2001 EA3063 EA3063 HISTORY - Date Condition Report By EA3063 HISTORY - 1986 MONUMENTED NGS EA3063 HISTORY - 20000321 GOOD NCGS EA3063 HISTORY - 20010109 GOOD NCGS EA3063 HISTORY - 20010627 GOOD USPSQD EA3063 EA3063 STATION DESCRIPTION EA3063 EA3063'DESCRIBED BY NATIONAL GEODETIC SURVEY 1986 (MRM) EA3063'THE STATION IS LOCATED ABOUT 11.3 KM (7.0 MI) EA3063'WEST OF WILMINGTON AND EA3063'6.4 KM (4.0 MI) SOUTHEAST OF LELAND. EA3063'OWNERSHIP--E.A. ORREL, CAPE FEAR TOWING COMPANY, PHONE 919-763-1255. EA3063' EA3063'TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAYS 76,74, 17 EA3063'AND 421 AT THE WEST END OF WILMINGTON, GO NORTH FOR EA3063'0.6 KM (0.4 MI) ON HIGHWAY 421 TO A PAVED ROAD RIGHT. TURN RIGHT EA3063'AND GO EASTERLY FOR 0.6 KM (0.35 MI) ON SR 1352 (BATTLESHIP DR), EA3063'PASSING BATTLESHIP ON LEFT, TO A ROAD RIGHT. TURN RIGHT AND GO EA3063'SOUTHERLY FOR 0.7 KM (0.42 MI) ON THE ROAD TO AN OVERPASS. EA3063'CONTINUE STRAIGHT AHEAD AND GO SOUTHERLY FOR 0.4 KM (0.23 MI) ON EA3063'THE ROAD TO THE STATION ON THE RIGHT, JUST PASS A TRUCK TURNAROUND. EA3063' EA3063'THE STATION IS A STANDARD NGS DISK EA3063'STAMPED---8120 C 1976 NO 1 1986---, EA3063'SET INTO THE TOP OF A ROUND CONCRETE MONUMENT EA3063'30 CM IN DIAMETER PROJECTING 2 CM ABOVE GROUND. LOCATED EA3063'33.83 METERS (111.0 FT) SOUTHWEST FROM THE UTILITY POLE NUMBER 22777 EA3063'WITH TRANSFORMER, EA3063'19.20 METERS (63.0 FT) WEST-NORTHWEST FROM A CHAIN LINK FENCE, EA3063'13.41 METERS (44.0 FT) WEST-NORTHWEST FROM THE APPROXIMATE CENTER EA3063'OF A DIRT ROAD (SR 1300), EA3063'7.92 METERS (26.0 FT) NORTH FROM THE NORTHEAST CORNER OF AN EA3063'INDUSTRIAL WASTE POND AND EA3063'0.70 METERS (2.3 FT) NORTH-NORTHEAST FROM A CARSONITE WITNESS POST. EA3063'THE UNDERGROUND MARK IS A STANDARD NGS DISK EA3063'STAMPED---8120 C 1976 NO 1 1986---, EA3063'SET INTO AN IRREGULAR MASS OF CONCRETE 1.2 METERS BELOW THE SURFACE. EA3063' EA3063'NO REFERENCE MARKS WERE SET AT THIS TIME. EA3063' EA3063'TI 4100 GPS SURVEY OF FAA AIRPORT SITES IN NORTH CAROLINA-FEBRUARY, EA3063'MARCH 1986. EA3063' EA3063'THIS STATION SUITABLE FOR GPS SURVEYS. EA3063' EA3063'DESCRIBED BY D.F. CALLAHAN. EA3063 EA3063 STATION RECOVERY (2000) EA3063 EA3063'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 2000 (WLL) EA3063'RECOVERED AS DESCRIBED WITH THE FOLLOWING UPDATES. THE INDUSTRIAL EA3063'WASTE POND AND WITNESS POST ARE GONE. EA3063 EA3063 STATION RECOVERY (2001) EA3063 EA3063'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 2001 EA3063'RECOVERED IN GOOD CONDITION, WITH THE FOLLOWING UPDATES. STATION IS EA3063'NOW FLUSH WITH EA3063'GROUND. THE DIRT ROAD AND INDUSTRIAL WASTE POND ARE GONE. EA3063' EA3063 EA3063 STATION RECOVERY (2001) EA3063 EA3063'RECOVERY NOTE BY US POWER SQUADRON 2001 (LFH) EA3063'RECOVERED IN GOOD CONDITION.