1 National Geodetic Survey, Retrieval Date = OCTOBER 3, 2005 BC2492 *********************************************************************** BC2492 CBN - This is a Cooperative Base Network Control Station. BC2492 DESIGNATION - HERLPORT BC2492 PID - BC2492 BC2492 STATE/COUNTY- FL/DUVAL BC2492 USGS QUAD - MARIETTA (1992) BC2492 BC2492 *CURRENT SURVEY CONTROL BC2492 ___________________________________________________________________ BC2492* NAD 83(1999)- 30 16 48.85905(N) 081 48 27.05782(W) ADJUSTED BC2492* NAVD 88 - 25.496 (meters) 83.65 (feet) ADJUSTED BC2492 ___________________________________________________________________ BC2492 X - 785,548.442 (meters) COMP BC2492 Y - -5,456,398.686 (meters) COMP BC2492 Z - 3,197,238.071 (meters) COMP BC2492 LAPLACE CORR- -0.41 (seconds) DEFLEC99 BC2492 ELLIP HEIGHT- -2.66 (meters) (04/12/01) GPS OBS BC2492 GEOID HEIGHT- -28.15 (meters) GEOID03 BC2492 DYNAMIC HT - 25.463 (meters) 83.54 (feet) COMP BC2492 MODELED GRAV- 979,356.1 (mgal) NAVD 88 BC2492 BC2492 HORZ ORDER - A BC2492 VERT ORDER - SECOND CLASS I BC2492 ELLP ORDER - FOURTH CLASS I BC2492 BC2492.This mark is at Herlong Airport (23J) BC2492 BC2492.The horizontal coordinates were established by GPS observations BC2492.and adjusted by the National Geodetic Survey in April 2001. BC2492 BC2492.The orthometric height was determined by differential leveling BC2492.and adjusted by the National Geodetic Survey in July 2004. BC2492.No vertical observational check was made to the station. BC2492 BC2492.The X, Y, and Z were computed from the position and the ellipsoidal ht. BC2492 BC2492.The Laplace correction was computed from DEFLEC99 derived deflections. BC2492 BC2492.The ellipsoidal height was determined by GPS observations BC2492.and is referenced to NAD 83. BC2492 BC2492.The geoid height was determined by GEOID03. BC2492 BC2492.The dynamic height is computed by dividing the NAVD 88 BC2492.geopotential number by the normal gravity value computed on the BC2492.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 BC2492.degrees latitude (g = 980.6199 gals.). BC2492 BC2492.The modeled gravity was interpolated from observed gravity values. BC2492 BC2492; North East Units Scale Factor Converg. BC2492;SPC FL E - 659,207.637 122,308.920 MT 1.00001561 -0 24 25.9 BC2492;UTM 17 - 3,350,114.699 422,335.428 MT 0.99967441 -0 24 25.9 BC2492 BC2492! - Elev Factor x Scale Factor = Combined Factor BC2492!SPC FL E - 1.00000042 x 1.00001561 = 1.00001603 BC2492!UTM 17 - 1.00000042 x 0.99967441 = 0.99967483 BC2492 BC2492: Primary Azimuth Mark Grid Az BC2492:SPC FL E - HERLPORT AZ MK 244 52 44.1 BC2492:UTM 17 - HERLPORT AZ MK 244 52 44.1 BC2492 BC2492|---------------------------------------------------------------------| BC2492| PID Reference Object Distance Geod. Az | BC2492| dddmmss.s | BC2492| BC2509 HERLPORT AZ MK APPROX. 0.7 KM 2442818.2 | BC2492|---------------------------------------------------------------------| BC2492 BC2492 SUPERSEDED SURVEY CONTROL BC2492 BC2492 ELLIP H (03/20/98) -2.66 (m) GP( ) 3 1 BC2492 NAD 83(1990)- 30 16 48.85840(N) 081 48 27.05776(W) AD( ) B BC2492 ELLIP H (09/13/90) -2.74 (m) GP( ) 4 1 BC2492 NAVD 88 (06/26/02) 25.49 (m) 83.6 (f) LEVELING 3 BC2492 NAVD 88 (03/20/98) 25.49 (m) 83.6 (f) LEVELING 3 BC2492 NGVD 29 (09/13/90) 25.8 (m) 85. (f) GPS OBS BC2492 BC2492.Superseded values are not recommended for survey control. BC2492.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. BC2492.See file dsdata.txt to determine how the superseded data were derived. BC2492 BC2492_U.S. NATIONAL GRID SPATIAL ADDRESS: 17RMP2233550115(NAD 83) BC2492_MARKER: F = FLANGE-ENCASED ROD BC2492_SETTING: 59 = STAINLESS STEEL ROD IN SLEEVE (10 FT.+) BC2492_SP_SET: STAINLESS STEEL ROD IN SLEEVE BC2492_STAMPING: HERLPORT 1988 BC2492_MARK LOGO: NGS BC2492_PROJECTION: RECESSED 5 CENTIMETERS BC2492_MAGNETIC: N = NO MAGNETIC MATERIAL BC2492_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL BC2492_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR BC2492+SATELLITE: SATELLITE OBSERVATIONS - July 26, 2005 BC2492_ROD/PIPE-DEPTH: 31.7 meters BC2492_SLEEVE-DEPTH : 0.9 meters BC2492 BC2492 HISTORY - Date Condition Report By BC2492 HISTORY - 1988 MONUMENTED NGS BC2492 HISTORY - 19890411 GOOD BC2492 HISTORY - 19890518 GOOD BC2492 HISTORY - 19920626 GOOD FLDNR BC2492 HISTORY - 19941026 GOOD FLDT BC2492 HISTORY - 19970502 GOOD DCJOHN BC2492 HISTORY - 19990405 GOOD LDBLS BC2492 HISTORY - 20020510 GOOD BAH BC2492 HISTORY - 20040226 GOOD JCLS BC2492 HISTORY - 20040226 GOOD JCLS BC2492 HISTORY - 20050726 GOOD JCLS BC2492 BC2492 STATION DESCRIPTION BC2492 BC2492'DESCRIBED BY NATIONAL GEODETIC SURVEY 1988 BC2492'THE STATION IS LOCATED ABOUT 16.25 KM (10.10 MI) EAST-SOUTHEAST OF BC2492'BALDWIN, 16.09 KM (10.00 MI) SOUTHWEST OF JACKSONVILLE, AT THE HERLONG BC2492'AIRPORT, IN SECTION 33, T 2 S, R 25 E, BETWEEN RUNWAY 07-25 AND A BC2492'TAXIWAY. OWNERSHIP--JACKSONVILLE PORT AUTHORITY, P.O. BOX 18097, BC2492'JACKSONVILLE FL 32229, BOB BALL - AVIATION DIRECTOR, PHONE BC2492'904-741-2014, CHARLES HARDRICK - OPERATIONS MANAGER, AL GULAMALI - BC2492'OPERATIONS SPECIALIST, PHONE 741-2000. NOTE--PERMISSION MUST BE BC2492'OBTAINED BEFORE ENTERING AIRPORT. BC2492'TO REACH THE STATION FROM THE INTERSTATE HIGHWAY 295 OVERPASS OVER BC2492'STATE HIGHWAY 228 (INTERSTATE EXIT 7), ABOUT 12.07 KM (7.50 MI) BC2492'WEST-SOUTHWEST OF JACKSONVILLE, GO WESTERLY FOR 2.82 KM (1.75 MI) ON BC2492'HIGHWAY 228 (NORMANDY BLVD) TO A PAVED ROAD RIGHT, HAMMOND BLVD. BC2492'CONTINUE STRAIGHT AHEAD AND GO WEST-SOUTHWEST FOR 1.05 KM (0.65 MI) ON BC2492'HIGHWAY 228 TO THE AIRPORT ENTRANCE ON LEFT. TURN LEFT AND GO SOUTH BC2492'FOR 0.24 KM (0.15 MI) ON THE PAVED ROAD TO A LOCKED GATE (KEY CARD BC2492'REQUIRED). PASS THROUGH GATE, CONTINUE STRAIGHT AHEAD AND GO SOUTH BC2492'FOR ABOUT 115 M (377.3 FT) ON THE APRON TO THE NORTH END OF A BC2492'NORTH-SOUTH TAXIWAY. CONTINUE STRAIGHT AHEAD AND GO SOUTH FOR ABOUT BC2492'55 M (180.4 FT) ON THE TAXIWAY TO THE STATION ON LEFT. BC2492'THE STATION IS RECESSED 10 CM BELOW GROUND. LOCATED 90.22 M BC2492'(296.0 FT) NORTH-NORTHEAST FROM A TAXIWAY MARKER SIGN AT THE JUNCTION BC2492'OF RUNWAY 07-25 AND THE NORTH-SOUTH TAXIWAY, 84.12 M (276.0 FT) BC2492'NORTH-NORTHWEST FROM THE APPROXIMATE CENTER OF RUNWAY 07-25, 75.90 M BC2492'(249.0 FT) SOUTH-SOUTHEAST FROM THE APPROXIMATE CENTER OF A BC2492'NORTHEAST-SOUTHWEST TAXIWAY, 67.57 M (221.7 FT) SOUTHEAST FROM A BC2492'YELLOW SIGN WITH NUMBER 25, 57.82 M (189.7 FT) EAST FROM THE BC2492'APPROXIMATE CENTER OF THE NORTH-SOUTH TAXIWAY AND 51.82 M (170.0 FT) BC2492'EAST-NORTHEAST FROM THE SIXTH BLUE TAXIWAY LIGHT THAT IS NORTH OF BC2492'RUNWAY 07-25. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH BC2492'LOGO CAP. BC2492'DESCRIBED BY D.F. CALLAHAN. BC2492 BC2492 STATION RECOVERY (1989) BC2492 BC2492'RECOVERED 1989 BC2492'RECOVERED IN GOOD CONDITION. BC2492 BC2492 STATION RECOVERY (1989) BC2492 BC2492'RECOVERED 1989 BC2492'RECOVERED IN GOOD CONDITION. BC2492 BC2492 STATION RECOVERY (1992) BC2492 BC2492'RECOVERY NOTE BY FL DEPT OF NAT RES 1992 (PBM) BC2492'THE STATION IS LOCATED ABOUT 10.10 MI (16.25 KM) EAST-SOUTHEAST OF BC2492'BALDWIN, 10.0 MI (16.1 KM) SOUTHWEST OF JACKSONVILLE, AT THE HERLONG BC2492'AIRPORT, IN SECTION 33, T 2 S, R 25 E, BETWEEN RUNWAY 07-25 AND A BC2492'TAXIWAY. OWNERSHIP--JACKSONVILLE PORT AUTHORITY, P.O. BOX 18097, BC2492'JACKSONVILLE, FL 32229 BOB BALL - AVIATION DIRECTOR, PHONE BC2492'904-741-2014, CHARLES HARDRICK - OPERATIONS MANAGER, AL GULAMALI - BC2492'OPERATIONS SPECIALIST, PHONE 741-2000, TOM JONES - AIRPORT MANAGER. TO BC2492'REACH THE STATION FROM THE INTERSTATE HIGHWAY 295 OVERPASS OVER STATE BC2492'HIGHWAY 228 (INTERSTATE EXIT 7), ABOUT 7.5 MI (12.1 KM) WEST-SOUTHWEST BC2492'OF JACKSONVILLE, GO WESTERLY FOR 1.8 MI (2.9 KM) ON HIGHWAY 228 BC2492'(NORMANDY BOULEVARD) TO A PAVED ROAD RIGHT, HAMMOND BOULEVARD, BC2492'CONTINUE WEST-SOUTHWEST FOR 0.7 MI (1.1 KM) ON HIGHWAY 228 TO THE BC2492'AIRPORT ENTRANCE ON THE LEFT, TURN LEFT AND GO SOUTH FOR 0.15 MI (0.24 BC2492'KM) ON THE PAVED ROAD TO A LOCKED GATE (KEY CARD REQUIRED), PASS BC2492'THROUGH GATE, CONTINUE SOUTH FOR ABOUT 377.3 FT (115.0 M) ON THE APRON BC2492'TO THE NORTH END OF A NORTH-SOUTH TAXIWAY, CONTINUE SOUTH FOR ABOUT BC2492'180.4 FT (55.0 M) ON THE TAXIWAY TO THE STATION ON THE LEFT. THE BC2492'STATION IS RECESSED 10 CM BELOW THE LEVEL OF THE GROUND. LOCATED 296.0 BC2492'FT (90.2 M) NORTH-NORTHEAST OF A TAXIWAY MARKER SIGN AT THE JUNCTION BC2492'OF RUNWAY 07-25 AND THE NORTH-SOUTH TAXIWAY, 276.0 FT (84.1 M) BC2492'NORTH-NORTHWEST OF THE APPROXIMATE CENTER OF RUNWAY 07-25, 249.0 FT BC2492'(75.9 M) SOUTH-SOUTHEAST OF THE APPROXIOMATE CENTER OF A BC2492'NORTHEAST-SOUTHWEST TAXIWAY, 221.7 FT (67.6 M) SOUTHEAST OF A YELLOW BC2492'SIGN WITH NUMBER 25, 189.7 FT (57.8 M) EAST OF THE APPROXIMATE CENTER BC2492'OF THE NORTH-SOUTH TAXIWAY AND 170.0 FT (51.8 M) EAST-NORTHEAST OF THE BC2492'SIXTH BLUE TAXIWAY LIGHT THAT IS NORTH OF RUNWAY 07-25. NOTE--MUST BC2492'HAVE PERMISSION TO ENTER THE LOCKED GATE. BC2492 BC2492 STATION RECOVERY (1994) BC2492 BC2492'RECOVERY NOTE BY FLORIDA DEPARTMENT OF TRANSPORTATION 1994 (CDM) BC2492'RECOVERED AS DESCRIBED BC2492 BC2492 STATION RECOVERY (1997) BC2492 BC2492'RECOVERY NOTE BY DC JOHNSON ASSOC 1997 (CHX) BC2492'RECOVERY NOTE BY DC JOHNSON ASSOC (CHX) THE STATION WAS RECOVERED AS BC2492'PREVIOUSLY DESCRIBED. BC2492 BC2492 STATION RECOVERY (1999) BC2492 BC2492'RECOVERY NOTE BY LD BRADLEY LAND SURVEYORS 1999 BC2492'RECOVERED AS DESCRIBED. BC2492 BC2492 STATION RECOVERY (2002) BC2492 BC2492'RECOVERY NOTE BY BERRYMAN & HENIGAR 2002 (KW) BC2492'RECOVERED AS DESCRIBED (ARG) BC2492' BC2492 BC2492 STATION RECOVERY (2004) BC2492 BC2492'RECOVERY NOTE BY JOHN CHANCE LAND SURVEYS INC 2004 (MRY) BC2492'RECOVERED IN GOOD CONDITION. BC2492 BC2492 STATION RECOVERY (2004) BC2492 BC2492'RECOVERY NOTE BY JOHN CHANCE LAND SURVEYS INC 2004 BC2492'RECOVERED IN GOOD CONDITION. BC2492 BC2492 STATION RECOVERY (2005) BC2492 BC2492'RECOVERY NOTE BY JOHN CHANCE LAND SURVEYS INC 2005 BC2492'RECOVERED IN GOOD CONDITION.