BM1074 ***********************************************************************
BM1074  SACS        -  This is a Secondary Airport Control Station.
BM1074  DESIGNATION -  GIDDPORT
BM1074  PID         -  BM1074
BM1074  STATE/COUNTY-  TX/LEE
BM1074  USGS QUAD   -  GIDDINGS (1989)
BM1074
BM1074                         *CURRENT SURVEY CONTROL
BM1074  ___________________________________________________________________
BM1074* NAD 83(1993)-  30 10 13.45080(N)    096 58 47.49019(W)     ADJUSTED
BM1074* NAVD 88     -       142.71   (meters)     468.2    (feet)  GPS OBS
BM1074  ___________________________________________________________________
BM1074  X           -    -670,657.570 (meters)                     COMP
BM1074  Y           -  -5,477,987.058 (meters)                     COMP
BM1074  Z           -   3,186,777.166 (meters)                     COMP
BM1074  LAPLACE CORR-          -2.22  (seconds)                    DEFLEC99
BM1074  ELLIP HEIGHT-         116.25  (meters)                     GPS OBS
BM1074  GEOID HEIGHT-         -26.34  (meters)                     GEOID99
BM1074
BM1074  HORZ ORDER  -  FIRST
BM1074  ELLP ORDER  -  FIFTH     CLASS I
BM1074
BM1074.This mark is at Giddings-Lee Co (62H) Airport (62H)
BM1074
BM1074.The horizontal coordinates were established by GPS observations
BM1074.and adjusted by the National Geodetic Survey in July 1996.
BM1074
BM1074.The orthometric height was determined by GPS observations and a
BM1074.high-resolution geoid model.
BM1074
BM1074.GPS derived orthometric heights for airport stations designated as
BM1074.PACS or SACS are published to 2 decimal places.  This maintains
BM1074.centimeter relative accuracy between the PACS and SACS.  It does
BM1074.not indicate centimeter accuracy relative to other marks which are
BM1074.part of the NAVD 88 network.
BM1074
BM1074.The X, Y, and Z were computed from the position and the ellipsoidal ht.
BM1074
BM1074.The Laplace correction was computed from DEFLEC99 derived deflections.
BM1074
BM1074.The ellipsoidal height was determined by GPS observations
BM1074.and is referenced to NAD 83.
BM1074
BM1074.The geoid height was determined by GEOID99.
BM1074
BM1074;                    North         East     Units   Scale      Converg.
BM1074;SPC TX C     - 3,060,711.464 1,022,956.683   MT  0.99998609 +1 43 38.1
BM1074;UTM  14      - 3,339,391.546   694,524.342   MT  1.00006686 +1 00 56.1
BM1074
BM1074:                Primary Azimuth Mark                     Grid Az
BM1074:SPC TX C     -  GIDDPORT AZ MK                           351 14 14.0
BM1074:UTM  14      -  GIDDPORT AZ MK                           351 56 56.0
BM1074
BM1074|---------------------------------------------------------------------|
BM1074| PID    Reference Object                     Distance      Geod. Az  |
BM1074|                                                           dddmmss.s |
BM1074| BM1077 GIDDPORT AZ MK                      437.572 METERS 3525752.1 |
BM1074|---------------------------------------------------------------------|
BM1074
BM1074                          SUPERSEDED SURVEY CONTROL
BM1074
BM1074  NAD 83(1993)-  30 10 13.45139(N)    096 58 47.48589(W) AD(       ) 3
BM1074  ELLIP HT    -         115.92  (m)                      GP(       ) 4 2
BM1074  NAD 83(1986)-  30 10 13.46560(N)    096 58 47.47685(W) AD(       ) 3
BM1074  NAD 83(1986)-  30 10 13.46575(N)    096 58 47.47685(W) AD(       ) 3
BM1074  NGVD 29     -       142.3    (m)          467.     (f) GPS OBS
BM1074
BM1074.Superseded values are not recommended for survey control.
BM1074.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
BM1074.See file dsdata.txt to determine how the superseded data were derived.
BM1074
BM1074_MARKER: I = METAL ROD
BM1074_SETTING: 59 = STAINLESS STEEL ROD IN SLEEVE (10 FT.+)
BM1074_STAMPING: GIDDPORT 1987
BM1074_PROJECTION: FLUSH
BM1074_MAGNETIC: N = NO MAGNETIC MATERIAL
BM1074_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
BM1074_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
BM1074+SATELLITE: SATELLITE OBSERVATIONS - February 24, 1995
BM1074_ROD/PIPE-DEPTH: 1.0  meters
BM1074_SLEEVE-DEPTH  : 0.9 meters
BM1074
BM1074  HISTORY     - Date     Condition        Recov. By
BM1074  HISTORY     - 1987     MONUMENTED       NGS
BM1074  HISTORY     - 1987     GOOD             NGS
BM1074  HISTORY     - 19880322 GOOD             NGS
BM1074  HISTORY     - 19950224 GOOD             NGS
BM1074
BM1074                          STATION DESCRIPTION
BM1074
BM1074''DESCRIBED BY NATIONAL GEODETIC SURVEY 1987 (REP)
BM1074''THE STATION IS LOCATED ABOUT 17.7 KM (11.0 MI)
BM1074''NORTH OF WINCHESTER, 16.1 KM (10.0 MI) EAST-SOUTHEAST OF PAIGE, 4.8
BM1074''KM (3.0 MI) WEST OF GEDDINGS AND AT THE GIDDINGS-LEE COUNTY AIRPORT.
BM1074''OWNERSHIP--LEE COUNTY, C/O CHUCK WHELAN, ROUTE 1 BOX 104F, GEDDINGS
BM1074''TX 78942, PHONE 409-542-5987.
BM1074''
BM1074''TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAYS 77 AND 290
BM1074''IN GEDDINGS, GO WEST ON U.S. HIGHWAY 290 FOR 3.5 KM (2.2 MI) TO
BM1074''COUNTY ROAD 205 ON THE LEFT.  TURN LEFT AND GO SOUTH FOR 1.O KM
BM1074''(0.65 MI) TO A DIRT ROAD ON THE LEFT, TURN LEFT ON COUNTY ROAD 206
BM1074''FOR 0.6 KM (0.4 MI) TO A FORK, BEAR LEFT FOR 0.2 KM (0.15 MI), THEN
BM1074''TURN RIGHT IN GRASS AND GO NORTH FOR 0.2 KM (0.1 MI) TO THE
BM1074''ADMINISTRATION OFFICE AT BEACON.  TURN LEFT AND GO WEST FOR 0.1 KM
BM1074''(0.05 MI) TO THE STATION AT TETRAHEDRON.
BM1074''
BM1074''THE STATION IS A PUNCH MARK IN THE TOP OF A STAINLESS STEEL ROD
BM1074''DRIVEN INTO THE GROUND AND INSIDE A 1-INCH PVC PIPE THAT IS 3 FEET
BM1074''LONG FILLED WITH GREASE THAT IS ENCASED IN A 5-INCH PVC PIPE WITH A
BM1074''LOGO CAP STAMPED---GIDDPORT 1987---, THE ROD IS RECESSED 1 CM BELOW
BM1074''THE GROUND SURFACE.  LOCATED
BM1074''27.9 METERS (91.5 FT) EAST FROM THE CENTERLINE OF RUNWAY,
BM1074''16.4 METERS (53.8 FT) NORTH FROM THE CENTERLINE OF TAXIWAY,
BM1074''11.3 METERS (37.1 FT) NORTHEAST FROM A TAXI LIGHT NUMBER 59,
BM1074''9.1 METERS (29.9 FT) NORTH FROM A TAXI LIGHT NUMBER 61 AND
BM1074''1.6 METERS (5.2 FT) SOUTHWEST FROM THE SOUTHWEST EDGE OF THE
BM1074''CONCRETE BASE FOR THE TETRAHEDRON.
BM1074''
BM1074''THE AZIMUTH MARK IS A PUNCH MARK IN THE TOP OF A STAINLESS STEEL
BM1074''ROD DRIVEN INTO THE GROUND AND INSIDE A 1-INCH PVC PIPE 3 FEET LONG
BM1074''FILLED WITH GREASE THAT IS ENCASED IN A 5-INCH PVC PIPE WITH A LOGO
BM1074''CAP STAMPED---GIDDPORT AZ MK 1987---, THE ROD IS RECESSED 1 CM
BM1074''BELOW THE GROUND SURFACE.  LOCATED
BM1074''50.0 METERS (164.0 FT) SOUTHEAST FROM THE NORTH END OF RUNWAY AT
BM1074''CENTERLINE,
BM1074''45.7 METERS (149.9 FT) NORTH FROM A RUNWAY LIGHT NUMBER 11,
BM1074''29.6 METERS (97.1 FT) WEST FROM A CABLE FENCE ALONG ENTRANCE ROAD,
BM1074''18.0 METERS (59.1 FT) EAST FROM THE CENTERLINE OF RUNWAY AND
BM1074''4.7 METERS (15.4 FT) SOUTHEAST FROM A RUNWAY LIGHT NUMBER 9.
BM1074''TO REACH THE AZIMUTH FROM THE STATION,
BM1074''GO NORTH FOR 0.4 KM (0.25 MI) ON RUNWAY TO THE MARK.
BM1074''
BM1074''HARRIS-GALVESTON TEXAS SUBSIDENCE NETWORK AND FAA AIRPORTS, 1987.
BM1074''
BM1074''THIS STATION IS SUITABLE FOR GPS SURVEYS.
BM1074''
BM1074''DESCRIBED BY B.L. LAMBERT.
BM1074
BM1074                          STATION RECOVERY (1987)
BM1074
BM1074''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1987
BM1074''RECOVERED IN GOOD CONDITION.
BM1074
BM1074                          STATION RECOVERY (1988)
BM1074
BM1074''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1988
BM1074''RECOVERED IN GOOD CONDITION.
BM1074
BM1074                          STATION RECOVERY (1995)
BM1074
BM1074''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1995 (AJL)
BM1074''THE STATION IS LOCATED ABOUT 16.1 KM (10.00 MI) EAST-SOUTHEAST OF
BM1074''PAIGE, 4.8 KM (3.00 MI) WEST OF GIDDINGS AT THE GIDDINGS-LEE COUNTY
BM1074''AIRPORT, BETWEEN THE APRON AND RUNWAY, ON THE NORTH SIDE OF THE
BM1074''MIDFIELD CONNECTOR, AND SOUTHWEST OF THE TETRAHEDRON.  OWNERSHIP--LEE
BM1074''COUNTY, 118 EAST RICHMAN, GIDDINGS, TX 78942.  TIM KLEINSCHMIDT,
BM1074''MANAGER, PHONE 409-542-9602.  (OFFICE IS NOT OCCUPIED) TO REACH THE
BM1074''STATION FROM THE JUNCTION OF U.S.  HIGHWAYS 290 AND 77 IN GIDDINGS, GO
BM1074''WEST ON HIGHWAY 290 FOR 3.5 KM (2.15 MI) TO COUNTY ROAD 205 ON THE
BM1074''LEFT.  TURN LEFT, SOUTHWEST, FOR 1.1 KM (0.70 MI) TO A PAVED ROAD ON
BM1074''THE LEFT (MARKED WITH AN AIRPORT SIGN) .  TURN LEFT, SOUTH, FOR 0.7 KM
BM1074''(0.45 MI) TO A FORK IN THE ROAD.  BEAR RIGHT, FOR 0.15 KM (0.10 MI) TO
BM1074''THE OFFICE AT THE BEACON AND WINDSOCK AND THE CROSSOVER ON THE RIGHT.
BM1074''TURN RIGHT, WEST, FOR 0.1 KM (0.05 MI) TO THE STATION ON THE RIGHT.
BM1074''THE STATION IS 27.9 M (91.5 FT) EAST OF AND LEVEL WITH THE RUNWAY
BM1074''CENTERLINE, 16.4 M (53.8 FT) NORTH OF THE CROSSOVER CENTER, 11.3 M
BM1074''(37.1 FT) NORTHEAST OF A TAXI LIGHT AT THE WEST EDGE OF A STORM DRAIN,
BM1074''9.1 M (29.9 FT) N OF A TAXI LIGHT, AND 1.6 M (5.2 FT) SOUTHWEST OF THE
BM1074''SOUTHWEST EDGE OF THE CONCRETE BASE FOR A TETRAHEDRON.  NOTE--ACCESS
BM1074''TO THE DATUM POINT IS THROUGH A 5-INCH LOGO CAP.  SLEEVE DEPTH DOES
BM1074''NOT MEET CLASS A REQUIREMENTS.  BY DEB