DA0516 ***********************************************************************
DA0516  DESIGNATION -  T 331
DA0516  PID         -  DA0516
DA0516  STATE/COUNTY-  AZ/MARICOPA
DA0516  USGS QUAD   -  BLACK GAP (1986)
DA0516
DA0516                         *CURRENT SURVEY CONTROL
DA0516  ___________________________________________________________________
DA0516* NAD 83(1986)-  32 45 46.     (N)    112 49 08.     (W)     SCALED
DA0516* NAVD 88     -       311.868  (meters)    1023.19   (feet)  ADJUSTED
DA0516  ___________________________________________________________________
DA0516  GEOID HEIGHT-         -31.22  (meters)                     GEOID99
DA0516  DYNAMIC HT  -         311.503 (meters)    1021.99  (feet)  COMP
DA0516  MODELED GRAV-     979,457.9   (mgal)                       NAVD 88
DA0516
DA0516  VERT ORDER  -  FIRST     CLASS II
DA0516
DA0516.The horizontal coordinates were scaled from a topographic map and have
DA0516.an estimated accuracy of +/- 6 seconds.
DA0516
DA0516.The orthometric height was determined by differential leveling
DA0516.and adjusted by the National Geodetic Survey in June 1991.
DA0516
DA0516.The geoid height was determined by GEOID99.
DA0516
DA0516.The dynamic height is computed by dividing the NAVD 88
DA0516.geopotential number by the normal gravity value computed on the
DA0516.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
DA0516.degrees latitude (G = 980.6199 gals.).
DA0516
DA0516.The modeled gravity was interpolated from observed gravity values.
DA0516
DA0516;                    North         East    Units  Estimated Accuracy
DA0516;SPC AZ C     -   195,810.      128,830.      MT  (+/- 180 meters Scaled)
DA0516
DA0516                          SUPERSEDED SURVEY CONTROL
DA0516
DA0516  NGVD 29     -       311.254  (m)         1021.17   (f) ADJ UNCH    1 2
DA0516
DA0516.Superseded values are not recommended for survey control.
DA0516.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
DA0516.See file dsdata.txt to determine how the superseded data were derived.
DA0516
DA0516_MARKER: DB = BENCH MARK DISK
DA0516_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
DA0516_STAMPING: T 331 1953
DA0516_PROJECTION: PROJECTING 10 CENTIMETERS
DA0516_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
DA0516+STABILITY: SURFACE MOTION
DA0516
DA0516  HISTORY     - Date     Condition        Recov. By
DA0516  HISTORY     - 1953     MONUMENTED       CGS
DA0516  HISTORY     - 1980     GOOD             NGS
DA0516  HISTORY     - 1984     GOOD             DMA
DA0516
DA0516                          STATION DESCRIPTION
DA0516
DA0516''DESCRIBED BY COAST AND GEODETIC SURVEY 1953
DA0516''14.2 MI S FROM GILA BEND.
DA0516''14.2 MILES SOUTH ALONG STATE HIGHWAY 85 FROM THE SOUTHERN PACIFIC
DA0516''COMPANY RAILROAD STATION AT GILA BEND, 11 POLES SOUTH OF TUCSON,
DA0516''CORNELIA AND GILA BEND RAILROAD MILEPOLE 14, 167 FEET NORTHWEST OF THE
DA0516''NORTHWEST CORNER OF RAILROAD WOODEN BRIDGE 144, 98.0 FEET WEST OF THE
DA0516''WEST RAIL, 59.5 FEET EAST OF THE CENTER LINE OF THE HIGHWAY, 3 FEET
DA0516''NORTHWEST OF A TELEPHONE POLE, 2.2 FEET WEST OF A WITNESS POST, ABOUT
DA0516''LEVEL WITH THE HIGHWAY, AND SET IN THE TOP OF A CONCRETE POST
DA0516''PROJECTING 0.4 FOOT ABOVE THE GROUND.
DA0516
DA0516                          STATION RECOVERY (1980)
DA0516
DA0516''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980
DA0516''22.5 KM (14.0 MI) SOUTHWEST ALONG THE TUCSON, CORNELIA AND GILA BEND
DA0516''RAILWAY FROM THE MARTIN AVENUE CROSSING IN GILA BEND, 0.9 KM (0.55
DA0516''MI) SOUTHWEST OF A POWER LINE CROSSING, 0.5 KM (0.3 MI) SOUTHWEST
DA0516''OF STATE HIGHWAY 85 MILEPOST 14, 11 TELEGRAPH POLES SOUTHWEST OF
DA0516''RAILWAY MILEPOLE 14, 29.9 METERS (98.0 FT) NORTHWEST OF THE NORTHWEST
DA0516''RAIL OF THE TRACKS, 50.9 METERS (167 FT) SOUTHEAST OF THE CENTERLINE
DA0516''OF THE HIGHWAY, 50.9 METERS (167 FT) NORTH OF THE NORTHWEST CORNER
DA0516''OF RAILWAY BRIDGE NUMBER 144, 2.1 METERS (7.0 FT) SOUTHWEST OF AN
DA0516''IRON BRACE IN THE RIGHT-OF-WAY FENCE LINE, 0.9 METER (3.0 FT)
DA0516''NORTHEAST OF AN IRON TELEGRAPH POLE, 0.3 METER (1.0 FT) NORTHWEST
DA0516''OF THE OF THE FENCE LINE.
DA0516''THE MARK IS 0.6 METERS  SW FROM A WITNESS POST.
DA0516''THE MARK IS 0.9 M BELOW THE TRACKS.
DA0516
DA0516                          STATION RECOVERY (1984)
DA0516
DA0516''RECOVERY NOTE BY DEFENSE MAP AGENCY 1984
DA0516''RECOVERED IN GOOD CONDITION.