RD0449 ***********************************************************************
RD0449  DESIGNATION -  MAR RM 1
RD0449  PID         -  RD0449
RD0449  STATE/COUNTY-  OR/MULTNOMAH
RD0449  USGS QUAD   -  PORTLAND (1990)
RD0449
RD0449                         *CURRENT SURVEY CONTROL
RD0449  ___________________________________________________________________
RD0449* NAD 83(1986)-  45 30 50.     (N)    122 40 23.     (W)     SCALED
RD0449* NAVD 88     -        10.437  (meters)      34.24   (feet)  ADJUSTED
RD0449  ___________________________________________________________________
RD0449  GEOID HEIGHT-         -22.76  (meters)                     GEOID99
RD0449  DYNAMIC HT  -          10.438 (meters)      34.25  (feet)  COMP
RD0449  MODELED GRAV-     980,629.6   (mgal)                       NAVD 88
RD0449
RD0449  VERT ORDER  -  FIRST     CLASS II
RD0449
RD0449.The horizontal coordinates were scaled from a topographic map and have
RD0449.an estimated accuracy of +/- 6 seconds.
RD0449
RD0449.The orthometric height was determined by differential leveling
RD0449.and adjusted by the National Geodetic Survey in June 1991.
RD0449
RD0449.The geoid height was determined by GEOID99.
RD0449
RD0449.The dynamic height is computed by dividing the NAVD 88
RD0449.geopotential number by the normal gravity value computed on the
RD0449.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
RD0449.degrees latitude (G = 980.6199 gals.).
RD0449
RD0449.The modeled gravity was interpolated from observed gravity values.
RD0449
RD0449;                    North         East    Units  Estimated Accuracy
RD0449;SPC OR N     -   207,550.    2,330,240.      MT  (+/- 180 meters Scaled)
RD0449
RD0449                          SUPERSEDED SURVEY CONTROL
RD0449
RD0449  NGVD 29     -         9.367  (m)           30.73   (f) ADJUSTED    1 2
RD0449
RD0449.Superseded values are not recommended for survey control.
RD0449.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
RD0449.See file dsdata.txt to determine how the superseded data were derived.
RD0449
RD0449_MARKER: DR = REFERENCE MARK DISK
RD0449_SETTING: 37 = SEAWALL
RD0449_STAMPING: MAR NO 1 1938
RD0449_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
RD0449
RD0449  HISTORY     - Date     Condition        Recov. By
RD0449  HISTORY     - 1938     MONUMENTED       CGS
RD0449  HISTORY     - 1975     GOOD             NGS
RD0449  HISTORY     - 1987     GOOD             NGS
RD0449  HISTORY     - 1988     GOOD             USPSQD
RD0449  HISTORY     - 1989     GOOD             USPSQD
RD0449  HISTORY     - 1989     GOOD             USPSQD
RD0449  HISTORY     - 1990     GOOD             USPSQD
RD0449  HISTORY     - 19940628 GOOD             USPSQD
RD0449
RD0449                          STATION DESCRIPTION
RD0449
RD0449''DESCRIBED BY NATIONAL GEODETIC SURVEY 1975
RD0449''IN PORTLAND.
RD0449''IN SOUTHWEST PORTLAND BETWEEN SOUTHWEST FRONT AVENUE, AND THE
RD0449''WILLAMETTE RIVER, 100 FEET NORTH OF THE WEST END OF THE HAWTHORNE
RD0449''BRIDGE, 34 FEET NORTH OF A CAST-IRON BOLLARD, 5.97 FEET NORTHEAST OF
RD0449''TRIANGULATION STATION MAR 1938, AND 0.5 FOOT WEST OF THE PARAPET,
RD0449''CEMENTED FLUSH IN THE CONCRETE.
RD0449
RD0449                          STATION RECOVERY (1987)
RD0449
RD0449''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987
RD0449''RECOVERED IN GOOD CONDITION.  THE DESCRIPTION IN LINE 7 OREGON IS
RD0449''ADEQUATE EXCEPT ADD--THE MARK IS AT THE HAWTHORNE BRIDGE AND NOT THE
RD0449''MORRISON BRIDGE.
RD0449
RD0449                          STATION RECOVERY (1988)
RD0449
RD0449''RECOVERY NOTE BY US POWER SQUADRON 1988 (KRN)
RD0449''RECOVERED IN GOOD CONDITION.
RD0449
RD0449                          STATION RECOVERY (1989)
RD0449
RD0449''RECOVERY NOTE BY US POWER SQUADRON 1989 (FV)
RD0449''RECOVERED IN GOOD CONDITION.
RD0449
RD0449                          STATION RECOVERY (1989)
RD0449
RD0449''RECOVERY NOTE BY US POWER SQUADRON 1989 (KRN)
RD0449''RECOVERED IN GOOD CONDITION.
RD0449
RD0449                          STATION RECOVERY (1990)
RD0449
RD0449''RECOVERY NOTE BY US POWER SQUADRON 1990 (KRN)
RD0449''RECOVERED IN GOOD CONDITION.
RD0449
RD0449                          STATION RECOVERY (1994)
RD0449
RD0449''RECOVERY NOTE BY US POWER SQUADRON 1994
RD0449''RECOVERED IN GOOD CONDITION.