HV4638 ***********************************************************************
HV4638  DESIGNATION -  JONES 1928
HV4638  PID         -  HV4638
HV4638  STATE/COUNTY-  VA/C OF ALEXANDRIA
HV4638  USGS QUAD   -  ALEXANDRIA (1994)
HV4638
HV4638                         *CURRENT SURVEY CONTROL
HV4638  ___________________________________________________________________
HV4638* NAD 83(1993)-  38 47 25.99444(N)    077 02 22.46081(W)     ADJUSTED
HV4638* NAVD 88     -         1.     (meters)       3.     (feet)  SCALED
HV4638  ___________________________________________________________________
HV4638  LAPLACE CORR-          -3.34  (seconds)                    DEFLEC99
HV4638  GEOID HEIGHT-         -32.21  (meters)                     GEOID99
HV4638
HV4638  HORZ ORDER  -  SECOND
HV4638
HV4638.The horizontal coordinates were established by classical geodetic methods
HV4638.and adjusted by the National Geodetic Survey in November 1994.
HV4638
HV4638.The orthometric height was scaled from a topographic map.
HV4638
HV4638.The Laplace correction was computed from DEFLEC99 derived deflections.
HV4638
HV4638.The geoid height was determined by GEOID99.
HV4638
HV4638;                    North         East     Units   Scale      Converg.
HV4638;SPC MD       -   409,306.19  1,301,054.05   sFT  0.99995095 -0 01 29.4
HV4638;SPC VA N     - 2,125,759.994 3,626,872.393   MT  0.99995293 +0 54 41.3
HV4638;SPC MD       -   124,756.776   396,562.067   MT  0.99995095 -0 01 29.4
HV4638;UTM  18      - 4,295,510.178   322,862.220   MT  0.99998640 -1 16 41.1
HV4638
HV4638:                Primary Azimuth Mark                     Grid Az
HV4638:SPC VA N     -  BELLEVUE NRL POWERHSE STK 1946           017 21 48.1
HV4638:SPC MD       -  BELLEVUE NRL POWERHSE STK 1946           018 17 58.8
HV4638:UTM  18      -  BELLEVUE NRL POWERHSE STK 1946           019 33 10.5
HV4638
HV4638|---------------------------------------------------------------------|
HV4638| PID    Reference Object                     Distance      Geod. Az  |
HV4638|                                                           dddmmss.s |
HV4638| HV4685 WEST RAD TWR BLDG NR BELLEVUE       APPROX. 3.7 KM 0181010.4 |
HV4638| HV4655 BELLEVUE NRL POWERHSE STK 1946      APPROX. 3.6 KM 0181629.4 |
HV4638| HV4650 BELLEVUE BLACK TANK                 APPROX. 3.9 KM 0210110.2 |
HV4638| HV4693 ROSIER LIGHT                        APPROX. 2.4 KM 1612528.0 |
HV4638| HV4550 ALEXANDRIA SHIPYARDS BLACK TK       387.319 METERS 33616     |
HV4638| HV4548 ALEXANDRIA ST MARYS RC CH           APPROX. 1.3 KM 3424216.5 |
HV4638| HV4544 ALEXANDRIA CITY HALL GOLD BALL      APPROX. 1.7 KM 3485746.7 |
HV4638| HV4551 ALEXANDRIA TORPEDO PLANT STACK      APPROX. 1.6 KM 3591955.8 |
HV4638|---------------------------------------------------------------------|
HV4638
HV4638                          SUPERSEDED SURVEY CONTROL
HV4638
HV4638  NAD 83(1993)-  38 47 25.99273(N)    077 02 22.46231(W) AD(       ) 2
HV4638  NAD 83(1986)-  38 47 25.99285(N)    077 02 22.47441(W) AD(       ) 2
HV4638  NAD 27      -  38 47 25.57500(N)    077 02 23.56000(W) AD(       ) 2
HV4638
HV4638.Superseded values are not recommended for survey control.
HV4638.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV4638.See file dsdata.txt to determine how the superseded data were derived.
HV4638
HV4638_MARKER: 14 = NAVIGATION LIGHT
HV4638
HV4638  HISTORY     - Date     Condition        Recov. By
HV4638  HISTORY     - 1928     FIRST OBSERVED   CGS
HV4638  HISTORY     - 1929     GOOD             CGS
HV4638  HISTORY     - 1938     GOOD             CGS
HV4638  HISTORY     - 1946     GOOD             CGS
HV4638  HISTORY     - 1947     GOOD             CGS
HV4638  HISTORY     - 1959     GOOD             CGS
HV4638  HISTORY     - 1959     GOOD             CGS
HV4638
HV4638                          STATION DESCRIPTION
HV4638
HV4638''DESCRIBED BY COAST AND GEODETIC SURVEY 1928 (CP)
HV4638''AT THE S END OF ALEXANDRIA AT JONES POINT, THE N ENTRANCE TO
HV4638''HUNTING CREEK.  STATION IS THE TOP OF THE LIGHT, PAINTED BLACK FOR
HV4638''OBSERVING PURPOSE, A 56-FOOT STEEL TOWER RESTING ON CONCRETE
HV4638''FOOTINGS SUPPORTS THE LIGHT.  NO MARKS WERE PLACED AS THE TOWER
HV4638''IS A PERMANENT STRUCTURE AND THE LIGHT ON THE TOP PLATFORM RESTS
HV4638''ON A BOLTED STEEL PLATE AND IS A PERMANENT AS ANY MODERN LIGHT
HV4638''STRUCTURE.
HV4638
HV4638                          STATION RECOVERY (1929)
HV4638
HV4638''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1929 (EBL)
HV4638''THE STATION WAS RECOVERED AS DESCRIBED.  THE DESCRIPTION IS
HV4638''ADEQUATE.
HV4638
HV4638                          STATION RECOVERY (1938)
HV4638
HV4638''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1938 (TMP)
HV4638''STATION RECOVERED.  ACCORDING TO LIGHT LIST, 1938, THE LIGHT
HV4638''HAS NOT BEEN CHANGED IN POSITION SINCE IT WAS BUILT IN 1926.
HV4638
HV4638                          STATION RECOVERY (1946)
HV4638
HV4638''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1946 (JMN)
HV4638''THE STEEL TOWER AND PLATFORM ARE PAINTED WHITE.  OTHERWISE AS
HV4638''DESCRIBED.  STATION MARK IS IN GOOD CONDITION.  DESCRIPTION IS
HV4638''ADEQUATE.
HV4638
HV4638                          STATION RECOVERY (1947)
HV4638
HV4638''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1947 (EAD)
HV4638''THE STATION IS THE TOP OF THE LIGHT ON THE WHITE SKELETON TOWER
HV4638''ON JONES POINT AND WAS RECOVERED AS DESCRIBED.  THE DESCRIPTION
HV4638''IS ADEQUATE.
HV4638
HV4638                          STATION RECOVERY (1959)
HV4638
HV4638''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (RST)
HV4638''STATION RECOVERED IN GOOD CONDITION THE ORIGINAL DESCRIPTION
HV4638''OF C.P. IN 1928 IS COMPLETE AND ADEQUATE.
HV4638
HV4638                          STATION RECOVERY (1959)
HV4638
HV4638''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (CAS)
HV4638''STATION RECOVERED AS DESCRIBED.  THE DESCRIPTION IS ADEQUATE.