CJ0866 ***********************************************************************
CJ0866  DESIGNATION -  FORT SUMTER BATTERY REF 2
CJ0866  PID         -  CJ0866
CJ0866  STATE/COUNTY-  SC/CHARLESTON
CJ0866  USGS QUAD   -  FORT MOULTRIE (1979)
CJ0866
CJ0866                         *CURRENT SURVEY CONTROL
CJ0866  ___________________________________________________________________
CJ0866* NAD 83(1986)-  32 45 09.39283(N)    079 52 27.78485(W)     ADJUSTED
CJ0866* NAVD 88     -         9.1    (meters)      30.     (feet)  VERTCON
CJ0866  ___________________________________________________________________
CJ0866  LAPLACE CORR-          -2.96  (seconds)                    DEFLEC99
CJ0866  GEOID HEIGHT-         -33.25  (meters)                     GEOID99
CJ0866
CJ0866  HORZ ORDER  -  THIRD
CJ0866
CJ0866.The North Carolina/South Carolina HARNS have been completed but,
CJ0866.due to contractual restrictions, coordinates for these stations
CJ0866.will NOT be published in the near future. In the interim, the
CJ0866.published coordinates in North and South Carolina will not be
CJ0866.consistent with the Continuously Operating Reference Stations
CJ0866.(CORS). The HARN coordinates for these stations are available
CJ0866.upon request. Contact Gary Thompson(919-733-3836), or Lewis
CJ0866.Lapine(803-896-7700).
CJ0866.
CJ0866.In addition, the published North and South Carolina positions
CJ0866.(NAD 83 (1986)) are NOT consistent with those determined in
CJ0866.adjacent state readjustments. The discontinuity between stations
CJ0866.located in North or South Carolina and those in adjacent states
CJ0866.which have been adjusted to the HARN may be as much as 5
CJ0866.decimeters. This will result in a significant loss of accuracy
CJ0866.over lines crossing such state borders.
CJ0866
CJ0866
CJ0866.The horizontal coordinates were established by classical geodetic methods
CJ0866.and adjusted by the National Geodetic Survey in July 1986.
CJ0866
CJ0866.The NAVD 88 height was computed by applying the VERTCON shift value to
CJ0866.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
CJ0866
CJ0866.The Laplace correction was computed from DEFLEC99 derived deflections.
CJ0866
CJ0866.The geoid height was determined by GEOID99.
CJ0866
CJ0866;                    North         East     Units   Scale      Converg.
CJ0866;SPC SC       -   336,364.33  2,346,044.93   iFT  0.99992060 +0 37 26.5
CJ0866;SPC SC       -   102,523.848   715,074.494   MT  0.99992060 +0 37 26.5
CJ0866;UTM  17      - 3,624,422.123   605,445.596   MT  0.99973710 +0 36 32.5
CJ0866
CJ0866:                Primary Azimuth Mark                     Grid Az
CJ0866:SPC SC       -  CHARLESTON LIGHTHOUSE 1890               187 09 06.3
CJ0866:UTM  17      -  CHARLESTON LIGHTHOUSE 1890               187 10 00.3
CJ0866
CJ0866|---------------------------------------------------------------------|
CJ0866| PID    Reference Object                     Distance      Geod. Az  |
CJ0866|                                                           dddmmss.s |
CJ0866| CJ1481 FT SUMTER BAT REF RM 3               19.635 METERS 02028     |
CJ0866| CJ0867 FORT SUMTER BATTERY REF RESET         5.308 METERS 09052     |
CJ0866| CJ1482 FT SUMTER BAT REF RM 4               33.445 METERS 12402     |
CJ0866| CJ0781 CHARLESTON LIGHTHOUSE 1890          APPROX. 6.4 KM 1874632.8 |
CJ0866|---------------------------------------------------------------------|
CJ0866
CJ0866                          SUPERSEDED SURVEY CONTROL
CJ0866
CJ0866  NAD 27      -  32 45 08.75800(N)    079 52 28.47700(W) AD(       ) 3
CJ0866  NGVD 29     -         9.4    (m)           31.     (f) VERT ANG
CJ0866
CJ0866.Superseded values are not recommended for survey control.
CJ0866.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
CJ0866.See file dsdata.txt to determine how the superseded data were derived.
CJ0866
CJ0866_MARKER: DO = NOT SPECIFIED OR SEE DESCRIPTION
CJ0866_SETTING: 4 = OBJECT SURROUNDED BY MASS OF CONCRETE
CJ0866_STAMPING: FORT SUMTER REFERENCE 2 1958
CJ0866_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
CJ0866
CJ0866  HISTORY     - Date     Condition        Recov. By
CJ0866  HISTORY     - 1958     MONUMENTED       CGS
CJ0866  HISTORY     - 1963     GOOD             CGS
CJ0866  HISTORY     - 1983     GOOD             NGS
CJ0866
CJ0866                          STATION DESCRIPTION
CJ0866
CJ0866''DESCRIBED BY COAST AND GEODETIC SURVEY 1958 (ALW)
CJ0866''NEAR THE ENTRANCE TO CHARLESTON HARBOR, ON TOP OF HUGER BATTERY
CJ0866''OF FORT SUMTER, 12 FEET NW OF SE EDGE OF THE ROOF OF THE
CJ0866''SAID BATTERY, 13-1/2 FEET SSW OF THE NNE EDGE OF SAME, AND
CJ0866''6-1/2 FEET NE OF THE CENTER OF A VENTILATOR IN THE ROOF, A
CJ0866''STANDARD TRIANGULATION STATION DISK IS STAMPED FORT SUMTER
CJ0866''REFERENCE 2 1958 AND SET WITH CEMENT IN A DRILL HOLE IN THE
CJ0866''SURFACE OF THE CONCRETE ROOF.
CJ0866''
CJ0866''REFERENCE STAMPED FORT SUMTER BATTERY REFERENCE NO 3 RESET
CJ0866''1953 IS A STANDARD REFERENCE DISK CEMENTED IN A DRILL HOLE IN
CJ0866''THE TOP OF THE OUTER WALL THAT ENCLOSES THE FORT, AND 7 FEET
CJ0866''NW OF THE SE END OF THE MOST NORTHEASTERLY SEGMENT OF THE WALL
CJ0866''WHICH SEGMENT IS ONLY ABOUT 25 FEET LONG.
CJ0866''
CJ0866''REFERENCE STAMPED FORT SUMTER BATTERY REFERENCE NO 4 RESET
CJ0866''1953 IS A REFERENCE DISK SIMILARLY SET IN TOP OF THE WALL
CJ0866''AT A POINT 57 FEET NNW OF SSE END OF A 60- OR 70-YARD LENGTH
CJ0866''WHICH IS THE MOST EAST-NORTHEASTERLY SEGMENT OF THE WHOLE.
CJ0866''
CJ0866''STATION IS BEST REACHED BY BOAT FROM THE COAST GUARD DOCK ON
CJ0866''SULLIVANS ISLAND.
CJ0866
CJ0866                          STATION RECOVERY (1963)
CJ0866
CJ0866''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1963 (WMR)
CJ0866''STATION, R.M.S 3 AND 4 WERE RECOVERED IN GOOD CONDITION.  THE
CJ0866''1958 DESCRIPTION BY A.L.W. IS ADEQUATE AND COMPLETE.
CJ0866
CJ0866                          STATION RECOVERY (1983)
CJ0866
CJ0866''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1983 (VDN)
CJ0866''THE STATION WAS RECOVERED AS DESCRIBED IN 1958, EXCEPT
CJ0866''THE FORT SUMTER BATTERY REFEENCE 1953 WAS NOT RECOVERED.
CJ0866''OWNERSHIP--THE NATIONAL PARK SERVICE, FORT SUMTER
CJ0866''NATIONAL MONUMENT, R BRIEN VARNADO SUPERINTENDENT,
CJ0866''1214 MIDDLE STREET, SULLIVANS ISLAND SC 29451, PHONE
CJ0866''803-883-3123.
CJ0866''
CJ0866''HEIGHT OF LIGHT SHOWN ABOVE THE MARK WAS 0.9 METER.