OA0790 ***********************************************************************
OA0790  TIDAL BM    -  This is a Tidal Bench Mark.
OA0790  DESIGNATION -  943 1647 TIDAL LEAD
OA0790  PID         -  OA0790
OA0790  STATE/COUNTY-  OR/CURRY
OA0790  USGS QUAD   -  PORT ORFORD (1996)
OA0790
OA0790                         *CURRENT SURVEY CONTROL
OA0790  ___________________________________________________________________
OA0790* NAD 83(1998)-  42 44 20.21025(N)    124 29 57.25713(W)     ADJUSTED
OA0790* NAVD 88     -         5.875  (meters)      19.27   (feet)  ADJUSTED
OA0790  ___________________________________________________________________
OA0790  EPOCH DATE  -        1997.00
OA0790  X           -  -2,657,338.306 (meters)                     COMP
OA0790  Y           -  -3,866,561.376 (meters)                     COMP
OA0790  Z           -   4,306,232.753 (meters)                     COMP
OA0790  LAPLACE CORR-          11.71  (seconds)                    DEFLEC99
OA0790  ELLIP HEIGHT-         -21.33  (meters)                     GPS OBS
OA0790  GEOID HEIGHT-         -27.15  (meters)                     GEOID99
OA0790  DYNAMIC HT  -           5.873 (meters)      19.27  (feet)  COMP
OA0790  MODELED GRAV-     980,413.7   (mgal)                       NAVD 88
OA0790
OA0790  HORZ ORDER  -  A
OA0790  VERT ORDER  -  FIRST     CLASS II
OA0790  ELLP ORDER  -  THIRD     CLASS I
OA0790
OA0790.The horizontal coordinates were established by GPS observations
OA0790.and adjusted by the National Geodetic Survey in April 2000.
OA0790.This is a SPECIAL STATUS position.  See SPECIAL STATUS under the
OA0790.DATUM ITEM on the data sheet items page.
OA0790.The horizontal coordinates are valid at the epoch date displayed above.
OA0790.The epoch date for horizontal control is a decimal equivalence
OA0790.of Year/Month/Day.
OA0790
OA0790.The orthometric height was determined by differential leveling
OA0790.and adjusted by the National Geodetic Survey in June 1991.
OA0790
OA0790.This Tidal Bench Mark is designated as VM 1044
OA0790.by the Center for Operational Oceanographic Products and Services.
OA0790
OA0790.The X, Y, and Z were computed from the position and the ellipsoidal ht.
OA0790
OA0790.The Laplace correction was computed from DEFLEC99 derived deflections.
OA0790
OA0790.The ellipsoidal height was determined by GPS observations
OA0790.and is referenced to NAD 83.
OA0790
OA0790.The geoid height was determined by GEOID99.
OA0790
OA0790.The dynamic height is computed by dividing the NAVD 88
OA0790.geopotential number by the normal gravity value computed on the
OA0790.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
OA0790.degrees latitude (G = 980.6199 gals.).
OA0790
OA0790.The modeled gravity was interpolated from observed gravity values.
OA0790
OA0790;                    North         East     Units   Scale      Converg.
OA0790;SPC OR S     -   126,928.905 1,172,670.917   MT  0.99992255 -2 44 09.8
OA0790;UTM  10      - 4,732,915.754   377,282.388   MT  0.99978528 -1 01 03.4
OA0790
OA0790                          SUPERSEDED SURVEY CONTROL
OA0790
OA0790  ELLIP HT    -         -21.33  (m)                      GP(       ) 3 1
OA0790  NAD 83(1991)-  42 44 20.20708(N)    124 29 57.25937(W) AD(       ) B
OA0790  ELLIP HT    -         -21.21  (m)                      GP(       ) 3 1
OA0790
OA0790.Superseded values are not recommended for survey control.
OA0790.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
OA0790.See file dsdata.txt to determine how the superseded data were derived.
OA0790
OA0790_MARKER: DD = SURVEY DISK
OA0790_SETTING: 66 = SET IN ROCK OUTCROP
OA0790_STAMPING: A N.J. 3 + 16.34 = LEAD 1961 1970
OA0790_MAGNETIC: N = NO MAGNETIC MATERIAL
OA0790_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
OA0790+STABILITY: POSITION/ELEVATION WELL
OA0790_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
OA0790+SATELLITE: SATELLITE OBSERVATIONS - May 23, 1998
OA0790
OA0790  HISTORY     - Date     Condition        Recov. By
OA0790  HISTORY     - 1964     MONUMENTED       USE
OA0790  HISTORY     - 1988     GOOD             NGS
OA0790  HISTORY     - 19980523 GOOD             NGS
OA0790
OA0790                          STATION DESCRIPTION
OA0790
OA0790''DESCRIBED BY NATIONAL GEODETIC SURVEY 1988
OA0790''0.7 KM (0.45 MI) SW FROM PORT ORFORD.
OA0790''0.7 KM (0.45 MI) SOUTHWESTERLY ALONG HARBOR DRIVE FROM THE JUNCTION OF
OA0790''U.S. HIGHWAY 101 IN PORT ORFORD, IN A LARGE AREA OF OUTCROPPING
OA0790''BEDROCK ALONG THE WEST EDGE OF FISHERMAN WHARF, 31.6 M (103.7 FT)
OA0790''NORTHEAST OF BENCH MARK 1647 K TIDAL, 28.6 M (93.8 FT) SOUTH OF THE
OA0790''NORTHWEST CORNER OF THE WHARF, 10.8 M (35.4 FT) EAST OF BENCH MARK
OA0790''1647 J TIDAL, AND 6.0 M (19.7 FT) WEST OF THE EXTENDED CENTER OF THE
OA0790''DRIVE.
OA0790
OA0790                          STATION RECOVERY (1998)
OA0790
OA0790''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1998 (CLS)
OA0790''NOTE--THE -A- IN THE STAMPING RESEMBLES A TRIANGLE.  THE STATION IS
OA0790''LOCATED ABOUT 0.7 KM (0.45 MI) SOUTHWEST OF PORT ORFORD, IN A LARGE
OA0790''AREA OF OUTCROPPING BEDROCK, AT THE SOUTHWEST CORNER OF THE PORT
OA0790''ORFORD WHARF.  OWNERSHIP--OREGON STATE COASTAL ZONE MANAGEMENT.  TO
OA0790''REACH THE STATION FROM U.S. HIGHWAY 101 (6TH STREET) AND HARBOR DRIVE
OA0790''IN PORT ORFORD, GO SOUTH THEN WEST ON HARBOR DRIVE FOR 0.7 KM (0.45
OA0790''MI) TO SOUTHERN END OF ASPHALT PARKING AREA AT FISHERMAN WHARF AND THE
OA0790''STATION DUE SOUTH TOWARDS OCEAN.  THE STATION IS A U.S. ARMY CORPS OF
OA0790''ENGINEERS SURVEY MARK DISK CEMENTED IN A DRILL HOLE IN MASSIVE OUTCROP
OA0790''ABOUT 60 CM LOWER THAN THE PARKING AREA.  IT IS 31.4 M (103.0 FT)
OA0790''EAST-SOUTHEAST FROM TIDAL BM 1647 K 1978, 30.45 M (99.90 FT)
OA0790''WEST-NORTHWEST FROM A METAL PIPE SUPPORTING WARNING SIGN AT NORTHWEST
OA0790''END OF STONE JETTY, 23.3 M (76.4 FT) SOUTHEAST FROM THE SOUTHWEST
OA0790''CONCRETE CURB FOR THE PARKING AREA, 21.3 M (69.9 FT) SOUTH FROM THE
OA0790''SOUTHEAST CONCRETE CURB OF PARKING AREA, AND 10.7 M (35.1 FT)
OA0790''EAST-NORTHEAST OF TIDAL BM 1647 J 1978.