1 National Geodetic Survey, Retrieval Date = MARCH 3, 2005 EW4122 *********************************************************************** EW4122 DESIGNATION - F 1052 EW4122 PID - EW4122 EW4122 STATE/COUNTY- CA/LOS ANGELES EW4122 USGS QUAD - MALIBU BEACH (1995) EW4122 EW4122 *CURRENT SURVEY CONTROL EW4122 ___________________________________________________________________ EW4122* NAD 83(1986)- 34 02 01. (N) 118 44 03. (W) SCALED EW4122* NAVD 88 - 5.863 (meters) 19.24 (feet) READJUSTED EW4122 ___________________________________________________________________ EW4122 GEOID HEIGHT- -35.71 (meters) GEOID03 EW4122 DYNAMIC HT - 5.860 (meters) 19.23 (feet) COMP EW4122 MODELED GRAV- 979,630.0 (mgal) NAVD 88 EW4122 OBS GRAVITY - 979,630.1 (mgal) GRAV_OBS EW4122 EW4122 VERT ORDER - * READJUSTED, Code C , SEE BELOW EW4122 EW4122.The horizontal coordinates were scaled from a topographic map and have EW4122.an estimated accuracy of +/- 6 seconds. EW4122 EW4122.The orthometric height was determined by differential leveling EW4122.and adjusted by the National Geodetic Survey in February 1993. EW4122.* This is a READJUSTED BENCH MARK height. Code C indicates a EW4122.distribution rate of 2.1 thru 3.0 mm/km. EW4122.The height was derived from older observations constrained to new EW4122.heights in a crustal motion area. The height is approximate in EW4122.relation to other heights in its vicinity. EW4122 EW4122.The geoid height was determined by GEOID03. EW4122 EW4122.The dynamic height is computed by dividing the NAVD 88 EW4122.geopotential number by the normal gravity value computed on the EW4122.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 EW4122.degrees latitude (g = 980.6199 gals.). EW4122 EW4122.The modeled gravity was interpolated from observed gravity values. EW4122.The observed gravity was obtained from relative gravimeter ties EW4122.to the IGSN71 gravity network. EW4122 EW4122; North East Units Estimated Accuracy EW4122;SPC CA 5 - 559,440. 1,932,200. MT (+/- 180 meters Scaled) EW4122 EW4122 SUPERSEDED SURVEY CONTROL EW4122 EW4122 NGVD 29 (??/??/92) 5.100 (m) 16.73 (f) ADJ UNCH 1 1 EW4122 EW4122.Superseded values are not recommended for survey control. EW4122.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. EW4122.See file dsdata.txt to determine how the superseded data were derived. EW4122 EW4122_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SLT399672(NAD 83) EW4122_MARKER: DB = BENCH MARK DISK EW4122_SETTING: 36 = BRIDGE SIDEWALK EW4122_STAMPING: F 1052 1960 EW4122_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL EW4122 EW4122 HISTORY - Date Condition Report By EW4122 HISTORY - 1960 MONUMENTED CGS EW4122 HISTORY - 1968 GOOD NGS EW4122 HISTORY - 1970 GOOD NGS EW4122 HISTORY - 1977 GOOD NGS EW4122 HISTORY - 19890518 MARK NOT FOUND NGS EW4122 HISTORY - 20050202 MARK NOT FOUND GEOCAC EW4122 EW4122 STATION DESCRIPTION EW4122 EW4122'DESCRIBED BY NATIONAL GEODETIC SURVEY 1968 EW4122'14.8 MI W FROM SANTA MONICA. EW4122'14.85 MILES WEST ALONG STATE HIGHWAY 1 FROM THE OVERHEAD CROSSING EW4122'OF COLORADO AVENUE BRIDGE 53-08, IN THE TOP AND 1.3 FOOT EAST OF EW4122'THE WEST END OF THE NORTH CONCRETE SIDEWALK OF CONCRETE BRIDGE EW4122'53-31 OVER CORRAL CREEK, 28 FEET NORTH OF THE NORTH LANES OF THE EW4122'HIGHWAY, 2.6 FEET NORTH OF THE SOUTH END OF THE SIDEWALK AND EW4122'ABOUT 1 FOOT HIGHER THAN THE HIGHWAY. EW4122 EW4122 STATION RECOVERY (1970) EW4122 EW4122'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1970 EW4122'RECOVERED IN GOOD CONDITION. EW4122 EW4122 STATION RECOVERY (1977) EW4122 EW4122'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 EW4122'RECOVERED IN GOOD CONDITION. EW4122 EW4122 STATION RECOVERY (1989) EW4122 EW4122'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1989 EW4122'THERE IS A NEW BRIDGE AT THE DESCRIBED LOCATION. EW4122 EW4122 STATION RECOVERY (2005) EW4122 EW4122'RECOVERY NOTE BY GEOCACHING 2005 (JBC) EW4122'THIS MARK WAS REPLACED WITH EW9542 (F 1052 RESET) WHEN THE NEW BRIDGE EW4122'OVER CORRAL CREEK WAS BUILT IN 1987. 1 National Geodetic Survey, Retrieval Date = MARCH 3, 2005 EW9542 *********************************************************************** EW9542 DESIGNATION - F 1052 RESET EW9542 PID - EW9542 EW9542 STATE/COUNTY- CA/LOS ANGELES EW9542 USGS QUAD - MALIBU BEACH (1995) EW9542 EW9542 *CURRENT SURVEY CONTROL EW9542 ___________________________________________________________________ EW9542* NAD 83(1986)- 34 02 00. (N) 118 44 03. (W) SCALED EW9542* NAVD 88 - 5.784 (meters) 18.98 (feet) ADJUSTED EW9542 ___________________________________________________________________ EW9542 GEOID HEIGHT- -35.71 (meters) GEOID03 EW9542 DYNAMIC HT - 5.778 (meters) 18.96 (feet) COMP EW9542 MODELED GRAV- 979,630.2 (mgal) NAVD 88 EW9542 EW9542 VERT ORDER - FIRST CLASS II EW9542 EW9542.The horizontal coordinates were scaled from a topographic map and have EW9542.an estimated accuracy of +/- 6 seconds. EW9542 EW9542.The orthometric height was determined by differential leveling EW9542.and adjusted by the National Geodetic Survey in June 1991. EW9542 EW9542.The geoid height was determined by GEOID03. EW9542 EW9542.The dynamic height is computed by dividing the NAVD 88 EW9542.geopotential number by the normal gravity value computed on the EW9542.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 EW9542.degrees latitude (g = 980.6199 gals.). EW9542 EW9542.The modeled gravity was interpolated from observed gravity values. EW9542 EW9542; North East Units Estimated Accuracy EW9542;SPC CA 5 - 559,410. 1,932,200. MT (+/- 180 meters Scaled) EW9542 EW9542 SUPERSEDED SURVEY CONTROL EW9542 EW9542.No superseded survey control is available for this station. EW9542 EW9542_U.S. NATIONAL GRID SPATIAL ADDRESS: 11SLT399672(NAD 83) EW9542_MARKER: DV = VERTICAL CONTROL DISK EW9542_SETTING: 38 = ABUTMENT EW9542_STAMPING: F 1052 RESET 1987 EW9542_MARK LOGO: NGS EW9542_MAGNETIC: N = NO MAGNETIC MATERIAL EW9542_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL EW9542_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR EW9542+SATELLITE: SATELLITE OBSERVATIONS - May 16, 1989 EW9542 EW9542 HISTORY - Date Condition Report By EW9542 HISTORY - 1987 MONUMENTED CADT EW9542 HISTORY - 19890516 GOOD NGS EW9542 HISTORY - 20050202 GOOD GEOCAC EW9542 EW9542 STATION DESCRIPTION EW9542 EW9542'DESCRIBED BY NATIONAL GEODETIC SURVEY 1989 EW9542'23.9 KM (14.85 MI) WESTERLY ALONG STATE HIGHWAY 1 FROM THE JUNCTION OF EW9542'COLORADO AVENUE IN SANTA MONICA, IN THE NORTH END OF THE WEST CONCRETE EW9542'ABUTMENT OF A HIGHWAY BRIDGE SPANNING CORRAL CREEK, 7.4 M (24.3 FT) EW9542'NORTH OF THE CENTERLINE OF THE NORTHBOUND LANES OF THE HIGHWAY, 1.3 M EW9542'(4.3 FT) SOUTH OF THE NORTH END OF THE ABUTMENT, 0.9 M (3.0 FT) EAST EW9542'OF THE WEST END OF A SIDEWALK, AND 0.3 M (1.0 FT) ABOVE THE LEVEL OF EW9542'THE HIGHWAY. EW9542 EW9542 STATION RECOVERY (2005) EW9542 EW9542'RECOVERY NOTE BY GEOCACHING 2005 (JBC) EW9542'RECOVERED IN GOOD CONDITION.