HV4826 ***********************************************************************
HV4826  DESIGNATION -  LOOMIS PB AND PP 1930
HV4826  PID         -  HV4826
HV4826  STATE/COUNTY-  VA/FAIRFAX
HV4826  USGS QUAD   -  FALLS CHURCH (1994)
HV4826
HV4826                         *CURRENT SURVEY CONTROL
HV4826  ___________________________________________________________________
HV4826* NAD 83(1993)-  38 57 06.22007(N)    077 08 48.14192(W)     ADJUSTED
HV4826* NAVD 88     -        79.     (meters)     259.     (feet)  SCALED
HV4826  ___________________________________________________________________
HV4826  LAPLACE CORR-          -2.43  (seconds)                    DEFLEC99
HV4826  GEOID HEIGHT-         -31.82  (meters)                     GEOID99
HV4826
HV4826  HORZ ORDER  -  SECOND
HV4826
HV4826.The horizontal coordinates were established by classical geodetic methods
HV4826.and adjusted by the National Geodetic Survey in November 1994.
HV4826
HV4826.The orthometric height was scaled from a topographic map.
HV4826
HV4826.The Laplace correction was computed from DEFLEC99 derived deflections.
HV4826
HV4826.The geoid height was determined by GEOID99.
HV4826
HV4826;                    North         East     Units   Scale      Converg.
HV4826;SPC MD       -   468,036.29  1,270,612.22   sFT  0.99995072 -0 05 31.5
HV4826;SPC VA N     - 2,143,507.067 3,617,302.288   MT  0.99996536 +0 50 40.6
HV4826;SPC MD       -   142,657.747   387,283.380   MT  0.99995072 -0 05 31.5
HV4826;UTM  18      - 4,313,611.170   313,977.495   MT  1.00002612 -1 20 59.8
HV4826
HV4826:                Primary Azimuth Mark                     Grid Az
HV4826:SPC VA N     -  ABBOTT PB PP 1930                        044 44 24.9
HV4826:SPC MD       -  ABBOTT PB PP 1930                        045 40 37.0
HV4826:UTM  18      -  ABBOTT PB PP 1930                        046 56 05.3
HV4826
HV4826|---------------------------------------------------------------------|
HV4826| PID    Reference Object                     Distance      Geod. Az  |
HV4826|                                                           dddmmss.s |
HV4826| HV4841 ABBOTT PB PP 1930                   APPROX. 2.0 KM 0453505.5 |
HV4826|---------------------------------------------------------------------|
HV4826
HV4826                          SUPERSEDED SURVEY CONTROL
HV4826
HV4826  NAD 83(1993)-  38 57 06.21924(N)    077 08 48.14366(W) AD(       ) 2
HV4826  NAD 83(1986)-  38 57 06.21905(N)    077 08 48.15322(W) AD(       ) 2
HV4826  NAD 27      -  38 57 05.82000(N)    077 08 49.22200(W) AD(       ) 2
HV4826
HV4826.Superseded values are not recommended for survey control.
HV4826.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV4826.See file dsdata.txt to determine how the superseded data were derived.
HV4826
HV4826_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
HV4826
HV4826  HISTORY     - Date     Condition        Recov. By
HV4826  HISTORY     - 1930     MONUMENTED       PBPP
HV4826  HISTORY     - 1956     GOOD             CGS
HV4826
HV4826                          STATION DESCRIPTION
HV4826
HV4826''DESCRIBED BY PUB BLDGS AND PARKS 1930
HV4826''STATION IS ON THE N (RIVER) SIDE OF THE CHAIN BRIDGE-LANGLEY ROAD.
HV4826''IT IS SITUATED ON THE FARM OF AND DIRECTLY BEHIND THE HOUSE OF
HV4826''M.J. LIGHTBOWN, AND IS ABOUT 0.6 MILE FROM THE ROAD ABOVE.  IT IS
HV4826''ON A LARGE KNOLL JUST TO THE E OF A KNOLL OCCUPIED BY THE HOUSE
HV4826''OF D.C. LOOMIS.  THE HOUSE OF M.J. LIGHTBOWN IS THE FIRST HOUSE
HV4826''ON THE N SIDE OF THE CHAIN BRIDGE-LANGLEY ROAD AFTER PASSING THE
HV4826''PRIVATE ROAD TO THE ESTATE OF JOSEPH LEITER.
HV4826''
HV4826''STATION CONSISTS OF A STANDARD U.S.P.N. AND P.P. MARKER SET
HV4826''IN CONCRETE IN A 5-INCH IRON PIPE.  UNDERGROUND MARK IS A SOFT
HV4826''DRINK BOTTLE WITH TOP ABOUT 3 FEET 10 INCHES BELOW SURFACE OF
HV4826''GROUND.
HV4826''
HV4826''ENTRANCE TO THE STATION IS OBTAINED BY DRIVING IN LIGHTBOWNS
HV4826''ENTRANCE AND AROUND HIS BARN, FROM WHICH A STRAIGHT ROAD LEADS
HV4826''BACK TO THE LOOMIS HOME AND THE KNOLL ON WHICH STATION IS LOCATED.
HV4826
HV4826                          STATION RECOVERY (1956)
HV4826
HV4826''RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 (MLC)
HV4826''THE STATION WAS RECOVERED AND FOUND TO BE IN GOOD CONDITION.  THE
HV4826''MARK WAS FOUND FLUSH WITH THE GROUND, ABOUT 15 FT. N OF THE
HV4826''HIGH POINT AT THE S END OF THE KNOLL.  IT IS 4 FT. NW OF A 4-IN.
HV4826''CEDAR TREE, 52 FT. W OF A 36-IN. OAK TREE (MAG. BEARING 265 DEG)
HV4826''ON THE E SIDE OF THE KNOLL, AND ABOUT 135 PACES E (MAG. BEARING
HV4826''70 DEG) FROM A WHITE COLONIAL-TYPE HOUSE.
HV4826''
HV4826''TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAYS 193
HV4826''AND 123 NEAR LANGLEY, GO E ON STATE HIGHWAY 123 FOR 0.4 MI. TO A
HV4826''PAVED ROAD AT THE ENTRANCE TO THE BUREAU OF PUBLIC ROADS, CONTINUE
HV4826''AHEAD ON STATE HIGHWAY 123 FOR 100 YD. TO A GATE IN A WHITE FENCE
HV4826''AND A GRAVEL ROAD N AT SIGN NAT GUARD AA BTRY ACROSS THE ROAD
HV4826''FROM A TWO-STORY BRICK HOUSE, TURN LEFT AND GO N FOR 0.4 MI. TO
HV4826''THE WHITE HOUSE MENTIONED ABOVE.