1 National Geodetic Survey, Retrieval Date = OCTOBER 3, 2005 DH6078 *********************************************************************** DH6078 DESIGNATION - NORTH DRURY DH6078 PID - DH6078 DH6078 STATE/COUNTY- CA/DEL NORTE DH6078 USGS QUAD - FERN CANYON (1966) DH6078 DH6078 *CURRENT SURVEY CONTROL DH6078 ___________________________________________________________________ DH6078* NAD 83(1998)- 41 28 00.66972(N) 124 02 17.77308(W) ADJUSTED DH6078* NAVD 88 - DH6078 ___________________________________________________________________ DH6078 EPOCH DATE - 2004.69 DH6078 X - -2,679,221.498 (meters) COMP DH6078 Y - -3,966,391.869 (meters) COMP DH6078 Z - 4,201,479.643 (meters) COMP DH6078 LAPLACE CORR- 10.89 (seconds) DEFLEC99 DH6078 ELLIP HEIGHT- 98.66 (meters) (09/13/05) GPS OBS DH6078 GEOID HEIGHT- -28.69 (meters) GEOID03 DH6078 DH6078 HORZ ORDER - A DH6078 ELLP ORDER - FOURTH CLASS I DH6078 DH6078.The horizontal coordinates were established by GPS observations DH6078.and adjusted by the National Geodetic Survey in September 2005. DH6078.This is a SPECIAL STATUS position. See SPECIAL STATUS under the DH6078.DATUM ITEM on the data sheet items page. DH6078.The horizontal coordinates are valid at the epoch date displayed above. DH6078.The epoch date for horizontal control is a decimal equivalence DH6078.of Year/Month/Day. DH6078 DH6078 DH6078.The X, Y, and Z were computed from the position and the ellipsoidal ht. DH6078 DH6078.The Laplace correction was computed from DEFLEC99 derived deflections. DH6078 DH6078.The ellipsoidal height was determined by GPS observations DH6078.and is referenced to NAD 83. DH6078 DH6078.The geoid height was determined by GEOID03. DH6078 DH6078; North East Units Scale Factor Converg. DH6078;SPC CA 1 - 738,886.633 1,829,748.439 MT 0.99995538 -1 19 58.1 DH6078;SPC CA 1 - 2,424,163.90 6,003,099.67 sFT 0.99995538 -1 19 58.1 DH6078;UTM 10 - 4,591,104.472 413,298.318 MT 0.99969251 -0 41 15.3 DH6078 DH6078! - Elev Factor x Scale Factor = Combined Factor DH6078!SPC CA 1 - 0.99998453 x 0.99995538 = 0.99993991 DH6078!UTM 10 - 0.99998453 x 0.99969251 = 0.99967704 DH6078 DH6078 SUPERSEDED SURVEY CONTROL DH6078 DH6078.No superseded survey control is available for this station. DH6078 DH6078_U.S. NATIONAL GRID SPATIAL ADDRESS: 10TDL1329891104(NAD 83) DH6078_MARKER: DD = SURVEY DISK DH6078_SETTING: 60 = ALUMINUM ALLOY ROD IN SLEEVE (10 FT.+) DH6078_STAMPING: 101-DN-0.15 DH6078_MARK LOGO: CSRC DH6078_PROJECTION: FLUSH DH6078_MAGNETIC: M = MARKER EQUIPPED WITH BAR MAGNET DH6078_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL DH6078_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR DH6078+SATELLITE: SATELLITE OBSERVATIONS - September 02, 2000 DH6078_ROD/PIPE-DEPTH: 3.5 meters DH6078_SLEEVE-DEPTH : 1 meters DH6078 DH6078 HISTORY - Date Condition Report By DH6078 HISTORY - 20000902 MONUMENTED CADT DH6078 DH6078 STATION DESCRIPTION DH6078 DH6078'DESCRIBED BY CALTRANS 2000 (JMH) DH6078'THE STATION IS LOCATED IN DEL NORTE COUNTY ALONG US HIGHWAY 101 40KM DH6078'(25MI) SOUTHERLY OF CRESCENT CITY, CA, 25.8 KM (16 MI) NORTHERLY OF DH6078'ORICK, CA, AND 0.24 KM (0.15 MI) NORTHERLY OF THE HUMBOLDT-DEL NORTE DH6078'COUNTY LINE, DH6078' DH6078'TO REACH THE STATION FROM THE INTERSECTION OF HIGHWAY 101 WITH REDWOOD DH6078'CREEK BRIDGE AT KILOPOST (KP) 194.88 (PM 121.09) IN THE TOWN OF DH6078'ORICK, DRIVE NORTHERLY ALONG HIGHWAY 101, 25.85 KM (16.06 MI) TO THE DH6078'HUMBOLDT-DEL NORTE COUNTY LINE. CONTINUE ALONG HIGHWAY 101, 0.24 KM DH6078'(0.15 MI) AND EXIT HIGHWAY AT NEWTON B DRURY PARKWAY NORTH, AND THE DH6078'STATION ON THE RIGHT AT THE END OF THE OFFRAMP. DH6078' DH6078'THE STATION IS ABOUT 20 M SOUTH OF THE PARKWAY, 24.7 M SSE OF DH6078'LIGHTPOLE 0014, 13.8 M NORTH OF A NAIL AND BATHEY CAP SET IN THE WEST DH6078'POST FOR A SIGN 'PRAIRIE CREEK REDWOODS STATE PARK', 9.55 M EAST OF DH6078'ASPHALT DIKE (CURB) WHICH IS ON THE NORTHBOUND HWY 101 OFFRAMP, AND DH6078'8.7 M NORTHEAST OF A WATER VALVE. THE STATION IS AN 8 CM (3.5 IN) DH6078'ALUMINUM DISK SET UPON A 3.6 M ALUMINUM ROD DRIVEN TO REFUSAL. SAID DH6078'DISK IS SET 4 CM BELOW EXISTING GROUND LEVEL AND IS ACCESSED THROUGH DH6078'ASECURTY ACCESS COVER. A CARSONITE WITNESS POST WAS SET 0.8 M DH6078'EASTERLY OF THE STATION. DH6078' DH6078'THIS STATION WAS OCCUPIED AS PART OF THE NROS (CALTRANS) HEIGHT DH6078'MODERNIZATION SURVEY OF 2004.