National Geodetic Survey,   Retrieval Date = AUGUST 28, 2020
 DC1881 ***********************************************************************
 DC1881  DESIGNATION -  SPRING
 DC1881  PID         -  DC1881
 DC1881  STATE/COUNTY-  CA/IMPERIAL
 DC1881  COUNTRY     -  US
 DC1881  USGS QUAD   -  IN-KO-PAH GORGE (2018)
 DC1881
 DC1881                         *CURRENT SURVEY CONTROL
 DC1881  ______________________________________________________________________
 DC1881* NAD 83(1992) POSITION- 32 40 31.70316(N) 116 05 51.39780(W)   ADJUSTED  
 DC1881* NAD 83(1992) EPOCH   -  1991.35
 DC1881* NAVD 88 ORTHO HEIGHT -   661.3   (meters)     2170.    (feet) VERTCON   
 DC1881  ______________________________________________________________________
 DC1881  GEOID HEIGHT    -        -32.996 (meters)                     GEOID18
 DC1881  LAPLACE CORR    -         -6.86  (seconds)                    DEFLEC18
 DC1881  HORZ ORDER      -  THIRD
 DC1881
 DC1881.The horizontal coordinates were established by classical geodetic methods
 DC1881.and adjusted by the National Geodetic Survey in June 1996.
 DC1881.
 DC1881.The NAVD 88 height was computed by applying the VERTCON shift value to
 DC1881.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
 DC1881
 DC1881.Significant digits in the geoid height do not necessarily reflect accuracy.
 DC1881.GEOID18 height accuracy estimate available here.
 DC1881
 DC1881.Click photographs - Photos may exist for this station.
 DC1881
 DC1881.The Laplace correction was computed from DEFLEC18 derived deflections.
 DC1881
 DC1881. The following values were computed from the NAD 83(1992) position.
 DC1881
 DC1881;                    North         East     Units Scale Factor Converg.
 DC1881;SPC CA 6     -   556,438.830 2,014,293.473   MT  1.00001970   +0 05 01.5
 DC1881;SPC CA 6     - 1,825,583.06  6,608,561.17   sFT  1.00001970   +0 05 01.5
 DC1881;UTM  11      - 3,615,670.514   584,606.190   MT  0.99968826   +0 29 14.0
 DC1881
 DC1881!             -  Elev Factor  x  Scale Factor =   Combined Factor
 DC1881!SPC CA 6     -   0.99990136  x   1.00001970  =   0.99992106
 DC1881!UTM  11      -   0.99990136  x   0.99968826  =   0.99958965
 DC1881
 DC1881:                Primary Azimuth Mark                     Grid Az
 DC1881:SPC CA 6     -  PARK                                     163 24 47.8
 DC1881:UTM  11      -  PARK                                     163 00 35.3
 DC1881
 DC1881_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SNS8460615670(NAD 83)
 DC1881
 DC1881|---------------------------------------------------------------------|
 DC1881| PID    Reference Object                     Distance      Geod. Az  |
 DC1881|                                                           dddmmss.s |
 DC1881| DC1883 PARK                                APPROX. 1.7 KM 1632949.3 |
 DC1881| CF0702 SPRING RM 1                                        22043     |
 DC1881| CF0703 SPRING RM 2                                        31619     |
 DC1881|---------------------------------------------------------------------|
 DC1881
 DC1881                          SUPERSEDED SURVEY CONTROL
 DC1881
 DC1881  NAD 83(1986)-  32 40 31.70423(N)    116 05 51.40137(W) AD(1984.00) 3
 DC1881  NAD 27      -  32 40 31.48110(N)    116 05 48.34290(W) AD(       ) 3
 DC1881  NGVD 29 (07/19/86)  660.5    (m)         2167.     (f) VERT ANG       
 DC1881
 DC1881.Superseded values are not recommended for survey control.
 DC1881
 DC1881.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
 DC1881.See file dsdata.pdf to determine how the superseded data were derived.
 DC1881
 DC1881_MARKER: DD = SURVEY DISK
 DC1881_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
 DC1881_STAMPING: USCGS SPRING 1958
 DC1881_MARK LOGO: CADH
 DC1881_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
 DC1881+STABILITY: SURFACE MOTION
 DC1881
 DC1881  HISTORY     - Date     Condition        Report By
 DC1881  HISTORY     - 1958     MONUMENTED       CADH
 DC1881
 DC1881                          STATION DESCRIPTION
 DC1881
 DC1881'DESCRIBED BY CA DIV OF HIGHWAYS 1958
 DC1881'STATION SPRING IS LOCATED ABOUT 6.7 AIR MILES ON AN APPROXIMATE
 DC1881'BEARING OF N 50 DEG E FROM THE TOWN OF JACUMBA.  TO FIND THE
 DC1881'STATION PROCEED AS FOLLOWS--
 DC1881'
 DC1881'STARTING AT THE POST OFFICE IN JACUMBA GO E ON U.S. HIGHWAY
 DC1881'80 FOR 8.7 MI. TO A POINT WHERE OLD U.S. HIGHWAY 80 (CONCRETE
 DC1881'PAVEMENT) BRANCHES OFF TO THE LEFT (E) FROM THE EXISTING HIGHWAY.
 DC1881'PROCEED 0.1 MI. FARTHER ON THE OLD HIGHWAY TO THE STATION.
 DC1881'THE STATION MONUMENT IS ON A LOW MOUND AND IS ABOUT 25 FT. TO
 DC1881'THE LEFT (N) FROM THE E.P.  IT IS ABOUT 14-IN. SQUARE IN THE
 DC1881'CROSS-SECTION AND PROJECTS ABOUT 4 IN. ABOVE THE GROUND.  THE
 DC1881'REFERENCE MARKS ARE LOCATED AND SET AS SHOWN BY THE ABOVE
 DC1881'DIRECTIONS, DISTANCES AND NOTES.
 DC1881'
 DC1881'ALL APPROXIMATE BEARINGS GIVEN ABOVE ARE TRUE.
 DC1881'
 DC1881'THE MARKS ARE CALIFORNIA, DIVISION OF HIGHWAYS TWO-INCH BRASS
 DC1881'DISKS STAMPED, SPRING USC AND GS 1958, SPRING R.M. 1 USC AND
 DC1881'GS 1958 AND SPRING R.M. 2 USC AND GS 1958.
 DC1881'
 DC1881'REFERENCE MARK 1 IS CEMENTED IN A DRILL HOLE IN THE CONCRETE
 DC1881'PAVEMENT OF THE OLD HIGHWAY.