AI4534 ***********************************************************************
AI4534  DESIGNATION -  SP 3
AI4534  PID         -  AI4534
AI4534  STATE/COUNTY-  CA/SAN DIEGO
AI4534  USGS QUAD   -  EARTHQUAKE VALLEY (1959)
AI4534
AI4534                         *CURRENT SURVEY CONTROL
AI4534  ___________________________________________________________________
AI4534* NAD 83(1986)-  33 01 20.     (N)    116 26 21.     (W)     SCALED
AI4534* NAVD 88     -       805.204  (meters)    2641.74   (feet)  ADJUSTED
AI4534  ___________________________________________________________________
AI4534  GEOID HEIGHT-         -32.07  (meters)                     GEOID99
AI4534  DYNAMIC HT  -         804.186 (meters)    2638.40  (feet)  COMP
AI4534  MODELED GRAV-     979,345.5   (mgal)                       NAVD 88
AI4534
AI4534  VERT ORDER  -  THIRD
AI4534
AI4534.The horizontal coordinates were scaled from a topographic map and have
AI4534.an estimated accuracy of +/- 6 seconds.
AI4534
AI4534.The orthometric height was determined by differential leveling
AI4534.and adjusted by the National Geodetic Survey in May 2000.
AI4534
AI4534.The geoid height was determined by GEOID99.
AI4534
AI4534.The dynamic height is computed by dividing the NAVD 88
AI4534.geopotential number by the normal gravity value computed on the
AI4534.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
AI4534.degrees latitude (G = 980.6199 gals.).
AI4534
AI4534.The modeled gravity was interpolated from observed gravity values.
AI4534
AI4534;                    North         East    Units  Estimated Accuracy
AI4534;SPC CA 6     -   594,900.    1,982,330.      MT  (+/- 180 meters Scaled)
AI4534
AI4534                          SUPERSEDED SURVEY CONTROL
AI4534
AI4534.No superseded survey control is available for this station.
AI4534
AI4534_MARKER: DD = SURVEY DISK
AI4534_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
AI4534_STAMPING: BM SP3 2639.22
AI4534_MAGNETIC: N = NO MAGNETIC MATERIAL
AI4534_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
AI4534+STABILITY: SURFACE MOTION
AI4534_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR
AI4534+SATELLITE: SATELLITE OBSERVATIONS - April 27, 1995
AI4534
AI4534  HISTORY     - Date     Condition        Recov. By
AI4534  HISTORY     - 1800     MONUMENTED       USE
AI4534  HISTORY     - 19950427 GOOD             CADT
AI4534
AI4534                          STATION DESCRIPTION
AI4534
AI4534''DESCRIBED BY CALTRANS 1995 (ATD)
AI4534''THE STATION IS LOCATED 10.1 MI (16.3 KM) EAST OF JULIAN, 6.0 MI (9.7
AI4534''KM) SOUTH SOUTHEAST OF THE JUNCTION OF STATE ROUTE 78 AND COUNTY ROUTE
AI4534''S-2, KNOWN LOCALLY AS SCISSORS CROSSING, ABOUT 1300 FT (396.2 M) NORTH
AI4534''OF ROUTE S-2 AT POST MILE 25.4. TO REACH FROM THE JUNCTION OF STATE
AI4534''ROUTE 78 AND COUNTY ROUTE S-2, DRIVE SOUTHEAST ON S-2 FOR 5.9 MI (9.5
AI4534''KM) TO A CURVE TO THE RIGHT IN A NARROW PASS.  CONTINUE SOUTHWEST THEN
AI4534''WEST ON S-2 FOR 2.4 MI (3.9 KM) TO AN ASPHALT COVERED WASH ON THE
AI4534''LEFT, SOUTH, AND A SANDY WASH NORTH.  THIS POINT IS 0.3 MI (0.5 KM)
AI4534''EAST OF THE BOX CANYON MONUMENT ON THE OLD OVERLAND STAGE ROUTE, AND
AI4534''THE END OF CAR TRAVEL. PROCEED ON FOOT NORTH UP SANDY WASH FOR 1000 FT
AI4534''(304.8 M) TO THE INTERSECTION OF AN ABANDONED DIRT ROAD ON THE LEFT,
AI4534''SOUTHWEST.  TURN LEFT, SOUTHWEST ALONG DIRT ROAD FOR 300 FT (91.4 M)
AI4534''TO THE STATION MARK ON THE LEFT, EAST SIDE OF THE ROAD. THE STATION
AI4534''MARK IS AT TOP OF A CUTBANK ON THE EAST SIDE OF THE ROAD, 19 FT (5.8
AI4534''M) EAST OF THE CENTER OF THE ROAD, 1 FT (0.3 M) WEST OF A METAL
AI4534''WITNESS POST, 6 FT (1.8 M) ABOVE THE ROAD. THE STATION WAS LEVELED TO
AI4534''BY CADT AS A PART OF THE 1995 PERIPHERAL RUN IN SAN DIEGO COUNTY TO
AI4534''ESTABLISH NAVD 1988.