BH3163 ***********************************************************************
BH3163  DESIGNATION -  49 14
BH3163  PID         -  BH3163
BH3163  STATE/COUNTY-  AL/MOBILE
BH3163  USGS QUAD   -  CREOLA (1985)
BH3163
BH3163                         *CURRENT SURVEY CONTROL
BH3163  ___________________________________________________________________
BH3163* NAD 83(1992)-  30 59 53.39020(N)    088 01 23.03336(W)     ADJUSTED
BH3163* NAVD 88     -         7.93   (meters)      26.0    (feet)  N HEIGHT
BH3163  ___________________________________________________________________
BH3163  X           -     188,771.287 (meters)                     COMP
BH3163  Y           -  -5,468,821.462 (meters)                     COMP
BH3163  Z           -   3,265,708.496 (meters)                     COMP
BH3163  LAPLACE CORR-          -0.57  (seconds)                    DEFLEC99
BH3163  ELLIP HEIGHT-         -20.45  (meters)                     GPS OBS
BH3163  GEOID HEIGHT-         -28.35  (meters)                     GEOID99
BH3163  DYNAMIC HT  -           7.92  (meters)      26.0   (feet)  COMP
BH3163  MODELED GRAV-     979,369.1   (mgal)                       NAVD 88
BH3163
BH3163  HORZ ORDER  -  FIRST
BH3163  VERT ORDER  -  THIRD
BH3163  ELLP ORDER  -  FOURTH    CLASS I
BH3163
BH3163.The horizontal coordinates were established by GPS observations
BH3163.and adjusted by the National Geodetic Survey in December 1992.
BH3163
BH3163.The orthometric height was determined by differential leveling
BH3163.and adjusted by the National Geodetic Survey in February 1996.
BH3163.The height was determined by precise leveling from only one NSRS
BH3163.bench mark.  This was not adequate "tie leveling" to NSRS and was
BH3163.allowed ONLY to validate the GPS-derived height.
BH3163
BH3163.The X, Y, and Z were computed from the position and the ellipsoidal ht.
BH3163
BH3163.The Laplace correction was computed from DEFLEC99 derived deflections.
BH3163
BH3163.The ellipsoidal height was determined by GPS observations
BH3163.and is referenced to NAD 83.
BH3163
BH3163.The geoid height was determined by GEOID99.
BH3163
BH3163.The dynamic height is computed by dividing the NAVD 88
BH3163.geopotential number by the normal gravity value computed on the
BH3163.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
BH3163.degrees latitude (g = 980.6199 gals.).
BH3163
BH3163.The modeled gravity was interpolated from observed gravity values.
BH3163
BH3163;                    North         East     Units   Scale      Converg.
BH3163;SPC AL W     -   110,767.418   550,047.125   MT  0.99996410 -0 16 09.8
BH3163;UTM  16      - 3,429,847.577   402,327.705   MT  0.99971767 -0 31 37.0
BH3163
BH3163|---------------------------------------------------------------------|
BH3163| PID    Reference Object                     Distance      Geod. Az  |
BH3163|                                                           dddmmss.s |
BH3163| BH3162 49 13                               376.228 METERS 23950     |
BH3163|---------------------------------------------------------------------|
BH3163
BH3163                          SUPERSEDED SURVEY CONTROL
BH3163
BH3163  NAD 83(1986)-  30 59 53.41038(N)    088 01 23.03853(W) AD(       ) 1
BH3163  NGVD 29     -         7.93   (m)           26.0    (f) N HEIGHT    3
BH3163
BH3163.Superseded values are not recommended for survey control.
BH3163.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
BH3163.See file dsdata.txt to determine how the superseded data were derived.
BH3163
BH3163_MARKER: DD = SURVEY DISK
BH3163_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
BH3163_STAMPING: 49-14 1991
BH3163_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT
BH3163_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
BH3163+STABILITY: SURFACE MOTION
BH3163_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
BH3163+SATELLITE: SATELLITE OBSERVATIONS - March 10, 1994
BH3163
BH3163  HISTORY     - Date     Condition        Recov. By
BH3163  HISTORY     - 1991     MONUMENTED       ALHD
BH3163  HISTORY     - 19940310 GOOD             ALHD
BH3163
BH3163                          STATION DESCRIPTION
BH3163
BH3163''DESCRIBED BY ALABAMA HIGHWAY DEPARTMENT 1991
BH3163''THE STATION IS LOCATED IN MOBILE COUNTY ON A HIGH VOLTAGE POWER LINE
BH3163''RIGHT OF WAY, ABOUT 5.95 MI (9.58 KM) SOUTH OF MOUNT VERNON AND ABOUT
BH3163''6.65 MI (10.70 KM) NORTH-NORTHEAST OF CREOLA.
BH3163''TO REACH THE STATION FROM EXIT 19 ON I-65 (MILE POST 14.15 ON U.S. 43)
BH3163'', DRIVE NORTH ON U.S. 43 FOR 8.50 MI (13.68 KM) TO MILE POST 22.65 AND
BH3163''THE SOUTH SIDE OF A HIGH VOLTAGE POWER LINE CLEARING LEFT AND RIGHT,
BH3163''TURN RIGHT ALONG THE SOUTH SIDE OF THE POWER LINE CLEARING AND DRIVE
BH3163''EAST FOR 0.10 MI (0.16 KM) TO THE RAILROAD, PARK HERE AND PACK
BH3163''APPROXIMATELY 100 YARDS TO THE STATION ON THE LEFT.
BH3163''THE STATION IS 39.0 FT (11.9 M) SOUTHWEST OF AN ABANDONED GRAVEL WOODS
BH3163''ROAD, 183.9 FT (56.1 M) SOUTHWEST OF THE SOUTH LEG OF BENT NO. 5 OF
BH3163''THE NORTH POWER LINE ON STEEL TOWERS, APPROXIMATELY 50 YARDS NORTH OF
BH3163''THE SOUTH EDGE OF THE RIGHT OF WAY CLEARING, APPROXIMATELY 75 YARDS
BH3163''EAST OF THE RAILROAD, 1.2 FT (0.4 M) EAST OF A CARSONITE WITNESS
BH3163''POST, AND SET FLUSH WITH THE GROUND.
BH3163''STATION 49-13 1991 MAY BE USED AS AN AZIMUTH FOR THIS STATION.
BH3163
BH3163                          STATION RECOVERY (1994)
BH3163
BH3163''RECOVERY NOTE BY ALABAMA HIGHWAY DEPARTMENT 1994 (JLD)
BH3163''THE STATION IS LOCATED IN MOBILE COUNTY ON A HIGH VOLTAGE POWER LINE
BH3163''RIGHT OF WAY, ABOUT 5.95 MI (9.58 KM) SOUTH OF MOUNT VERNON AND ABOUT
BH3163''6.65 MI (10.70 KM) NORTH-NORTHEAST OF CREOLA. TO REACH THE STATION
BH3163''FROM EXIT 19 ON I-65 (MILE POST 14.15 ON U.S. 43) , DRIVE NORTH ON
BH3163''U.S. 43 FOR 8.50 MI (13.68 KM) TO MILE POST 22.65 AND THE SOUTH SIDE
BH3163''OF A HIGH VOLTAGE POWER LINE CLEARING LEFT AND RIGHT, TURN RIGHT ALONG
BH3163''THE SOUTH SIDE OF THE POWER LINE CLEARING AND DRIVE EAST FOR 0.10 MI
BH3163''(0.16 KM) TO THE RAILROAD, PARK HERE AND PACK APPROXIMATELY 100 YARDS
BH3163''TO THE STATION ON THE LEFT. THE STATION IS 39.0 FT (11.9 M) SOUTHWEST
BH3163''OF AN ABANDONED GRAVEL WOODS ROAD, 183.9 FT (56.1 M) SOUTHWEST OF THE
BH3163''SOUTH LEG OF BENT NO. 5 OF THE NORTH POWER LINE ON STEEL TOWERS,
BH3163''APPROXIMATELY 50 YARDS NORTH OF THE SOUTH EDGE OF THE RIGHT OF WAY
BH3163''CLEARING, APPROXIMATELY 75 YARDS EAST OF THE RAILROAD, 1.2 FT (0.4 M)
BH3163''EAST OF A CARSONITE WITNESS POST, AND SET FLUSH WITH THE GROUND.
BH3163''STATION 49-13 1991 MAY BE USED AS AN AZIMUTH FOR THIS STATION.