HV0366 ***********************************************************************
HV0366  DESIGNATION -  CREEK
HV0366  PID         -  HV0366
HV0366  STATE/COUNTY-  VA/ARLINGTON
HV0366  USGS QUAD   -  WASHINGTON WEST (1983)
HV0366
HV0366                         *CURRENT SURVEY CONTROL
HV0366  ___________________________________________________________________
HV0366* NAD 83(1993)-  38 55 29.89484(N)    077 06 46.69265(W)     ADJUSTED
HV0366* NAVD 88     -         1.     (meters)       3.     (feet)  SCALED
HV0366  ___________________________________________________________________
HV0366  LAPLACE CORR-          -2.36  (seconds)                    DEFLEC99
HV0366  GEOID HEIGHT-         -31.89  (meters)                     GEOID99
HV0366
HV0366  HORZ ORDER  -  SECOND
HV0366
HV0366.The horizontal coordinates were established by classical geodetic methods
HV0366.and adjusted by the National Geodetic Survey in November 1994.
HV0366
HV0366.The orthometric height was scaled from a topographic map.
HV0366
HV0366.The Laplace correction was computed from DEFLEC99 derived deflections.
HV0366
HV0366.The geoid height was determined by GEOID99.
HV0366
HV0366;                    North         East     Units   Scale      Converg.
HV0366;SPC MD       -   458,277.72  1,280,194.17   sFT  0.99995021 -0 04 15.3
HV0366;SPC VA N     - 2,140,580.746 3,620,271.142   MT  0.99996275 +0 51 56.4
HV0366;SPC MD       -   139,683.327   390,203.963   MT  0.99995021 -0 04 15.3
HV0366;UTM  18      - 4,310,573.163   316,832.297   MT  1.00001314 -1 19 40.6
HV0366
HV0366:                Primary Azimuth Mark                     Grid Az
HV0366:SPC VA N     -  BLUFF 2                                  024 40 44.0
HV0366:SPC MD       -  BLUFF 2                                  025 36 55.7
HV0366:UTM  18      -  BLUFF 2                                  026 52 21.0
HV0366
HV0366|---------------------------------------------------------------------|
HV0366| PID    Reference Object                     Distance      Geod. Az  |
HV0366|                                                           dddmmss.s |
HV0366| HV4102 BLUFF 2                             APPROX. 0.5 KM 0253240.4 |
HV0366| HV4100 BLUFF                               APPROX. 0.5 KM 0264815.7 |
HV0366| HV1825 GALENA                              437.631 METERS 0571800.8 |
HV0366| HV0556 DRILL                               244.696 METERS 13607     |
HV0366|        CREEK RM 1                            7.285 METERS 17118     |
HV0366|        CREEK WM 1                            2.414 METERS 26423     |
HV0366|        CREEK RM 3                            6.462 METERS 27952     |
HV0366| HV0746 HOLE                                257.630 METERS 32456     |
HV0366|        CREEK RM 2                            1.881 METERS 34433     |
HV0366|---------------------------------------------------------------------|
HV0366
HV0366                          SUPERSEDED SURVEY CONTROL
HV0366
HV0366  NAD 83(1993)-  38 55 29.89376(N)    077 06 46.69433(W) AD(       ) 2
HV0366  NAD 83(1986)-  38 55 29.89359(N)    077 06 46.70424(W) AD(       ) 2
HV0366  NAD 27      -  38 55 29.49300(N)    077 06 47.77400(W) AD(       ) 2
HV0366
HV0366.Superseded values are not recommended for survey control.
HV0366.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV0366.See file dsdata.txt to determine how the superseded data were derived.
HV0366
HV0366_MARKER: DD = SURVEY DISK
HV0366_SETTING: 66 = SET IN ROCK OUTCROP
HV0366
HV0366  HISTORY     - Date     Condition        Recov. By
HV0366  HISTORY     - 1925     MONUMENTED       USE
HV0366  HISTORY     - 1935     GOOD             CGS
HV0366  HISTORY     - 1946     GOOD             CGS
HV0366  HISTORY     - 1957     GOOD             CGS
HV0366
HV0366                          STATION DESCRIPTION
HV0366
HV0366''DESCRIBED BY US ENGINEERS 1925 (GLB)
HV0366''STATION IS SITUATED ABOUT 1/3 MILE SE OF THE CHAIN BRIDGE ON THE
HV0366''VIRGINIA SIDE OF THE POTOMAC RIVER.  IT IS ABOUT 100 METERS SE OF
HV0366''A SMALL CREEK WITH AN OLD POWERHOUSE IN A PROMINENT RAVINE.  IT
HV0366''IS ON A PROMINENT HIGH LEDGE ABOUT 40 FEET BACK FROM THE RIVER
HV0366''AND 15 FEET ABOVE THE WATER.  ABOUT 15 FEET FROM THE BASE OF THE
HV0366''BLUFF.
HV0366''
HV0366''STATION IS MARKED BY A UNITED STATES ENGINEERS MARK SET WITH
HV0366''CEMENT IN A DRILL HOLE IN THE SOLID ROCK.
HV0366''
HV0366''REFERENCE MARK NO. 1 IS A DRILL HOLE IN THE EDGE OF THE LEDGE.
HV0366''
HV0366''REFERENCE MARK NO. 2 IS A REGULAR REFERENCE MARK SET WITH CEMENT
HV0366''IN A DEPRESSION IN THE LEDGE.
HV0366''
HV0366''REFERENCE MARK NO. 3 IS A LARGE IRON BOLT SET IN A DRILL HOLE.
HV0366''
HV0366''WITNESS MARK NO. 1 IS A DRILL HOLE.
HV0366
HV0366                          STATION RECOVERY (1935)
HV0366
HV0366''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1935 (JHB)
HV0366''RECOVERED AS DESCRIBED.
HV0366
HV0366                          STATION RECOVERY (1946)
HV0366
HV0366''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1946 (JMN)
HV0366''AT SITE OF STATION, 40 IS PAINTED IN LARGE RED FIGURES ON FACE
HV0366''OF CLIFF.  REFERENCE MARK 2 IS OUT, LEAVING PLUG OF MARK.
HV0366''OTHERWISE, AS DESCRIBED.  DESCRIPTION ADEQUATE.
HV0366
HV0366                          STATION RECOVERY (1957)
HV0366
HV0366''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1957 (JL)
HV0366''THE STATION WAS FOUND IN GOOD CONDITION AND PREVIOUS DESCRIPTION
HV0366''IS ADEQUATE.