1 National Geodetic Survey, Retrieval Date = MARCH 1, 2004 JS3899 *********************************************************************** JS3899 DESIGNATION - G 1414 JS3899 PID - JS3899 JS3899 STATE/COUNTY- CA/SACRAMENTO JS3899 USGS QUAD - FLORIN (1980) JS3899 JS3899 *CURRENT SURVEY CONTROL JS3899 ___________________________________________________________________ JS3899* NAD 83(1998)- 38 27 10.89635(N) 121 22 51.46942(W) ADJUSTED JS3899* NAVD 88 - 11.77 (meters) 38.6 (feet) GPS OBS JS3899 ___________________________________________________________________ JS3899 EPOCH DATE - 2002.53 JS3899 X - -2,604,306.385 (meters) COMP JS3899 Y - -4,269,728.072 (meters) COMP JS3899 Z - 3,944,935.529 (meters) COMP JS3899 LAPLACE CORR- 5.60 (seconds) DEFLEC99 JS3899 ELLIP HEIGHT- -18.96 (meters) (02/03/03) GPS OBS JS3899 GEOID HEIGHT- -30.71 (meters) GEOID03 JS3899 JS3899 HORZ ORDER - FIRST JS3899 ELLP ORDER - FOURTH CLASS I JS3899 JS3899.The horizontal coordinates were established by GPS observations JS3899.and adjusted by the National Geodetic Survey in February 2003. JS3899.This is a SPECIAL STATUS position. See SPECIAL STATUS under the JS3899.DATUM ITEM on the data sheet items page. JS3899.The horizontal coordinates are valid at the epoch date displayed above. JS3899.The epoch date for horizontal control is a decimal equivalence JS3899.of Year/Month/Day. JS3899 JS3899.The orthometric height was determined by GPS observations and a JS3899.high-resolution geoid model using precise GPS observation and JS3899.processing techniques. It supersedes the leveled height previously JS3899.determined for this station. JS3899 JS3899.The X, Y, and Z were computed from the position and the ellipsoidal ht. JS3899 JS3899.The Laplace correction was computed from DEFLEC99 derived deflections. JS3899 JS3899.The ellipsoidal height was determined by GPS observations JS3899.and is referenced to NAD 83. JS3899 JS3899.The geoid height was determined by GEOID03. JS3899 JS3899; North East Units Scale Factor Converg. JS3899;SPC CA 2 - 587,475.190 2,054,033.530 MT 0.99997501 +0 23 25.0 JS3899;SPC CA 2 - 1,927,408.19 6,738,941.67 sFT 0.99997501 +0 23 25.0 JS3899;UTM 10 - 4,257,322.671 641,272.464 MT 0.99984578 +1 00 25.2 JS3899 JS3899! - Elev Factor x Scale Factor = Combined Factor JS3899!SPC CA 2 - 1.00000297 x 0.99997501 = 0.99997798 JS3899!UTM 10 - 1.00000297 x 0.99984578 = 0.99984875 JS3899 JS3899 SUPERSEDED SURVEY CONTROL JS3899 JS3899 NAD 83(1992)- 38 27 10.89503(N) 121 22 51.46681(W) AD(1997.30) 1 JS3899 ELLIP H (07/10/98) -19.00 (m) GP(1997.30) 4 1 JS3899 NAD 83(1992)- 38 27 10.89466(N) 121 22 51.46719(W) AD(1997.30) 1 JS3899 ELLIP H (05/14/98) -18.91 (m) GP(1997.30) 3 1 JS3899 NAVD 88 (06/15/91) 11.748 (m) 38.54 (f) ADJUSTED 1 2 JS3899 JS3899.Superseded values are not recommended for survey control. JS3899.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JS3899.See file dsdata.txt to determine how the superseded data were derived. JS3899 JS3899_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SFH4127257323(NAD 83) JS3899_MARKER: F = FLANGE-ENCASED ROD JS3899_SETTING: 15 = METAL ROD DRIVEN INTO GROUND. SEE TEXT FOR ADDITIONAL JS3899+WITH SETTING: INFORMATION. JS3899_STAMPING: G 1414 1987 JS3899_MARK LOGO: NGS JS3899_PROJECTION: RECESSED 10 CENTIMETERS JS3899_MAGNETIC: N = NO MAGNETIC MATERIAL JS3899_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JS3899_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JS3899+SATELLITE: SATELLITE OBSERVATIONS - August 27, 1997 JS3899_ROD/PIPE-DEPTH: 2.4 meters JS3899 JS3899 HISTORY - Date Condition Report By JS3899 HISTORY - 1987 MONUMENTED NGS JS3899 HISTORY - 19970827 GOOD BOR JS3899 HISTORY - 20020831 GOOD FRAME JS3899 HISTORY - 20021101 POOR NGS JS3899 JS3899 STATION DESCRIPTION JS3899 JS3899'DESCRIBED BY NATIONAL GEODETIC SURVEY 1987 JS3899'6.3 KM (3.90 MI) NORTH FROM ELK GROVE. JS3899'0.64 KM (0.40 MI) WEST ALONG ELK GROVE BOULEVARD FROM THE CROSSING OF JS3899'THE SOUTHERN PACIFIC RAILROAD IN ELK GROVE, THENCE 4.8 KM (3.00 MI) JS3899'NORTH ALONG THE ELK GROVE-FLORIN ROAD, THENCE 0.80 KM (0.50 MI) WEST JS3899'ALONG CALVINE ROAD, 53 M (173.9 FT) NORTH OF THE ROAD CENTERLINE, JS3899'12.40 M (40.7 FT) WEST OF THE WEST RAIL OF THE SOUTHERN PACIFIC JS3899'RAILROAD, 5.5 M (18.0 FT) WEST OF THE CENTER OF A TRACK ROAD, 1.03 M JS3899'(3.4 FT) EAST OF A FENCE, 0.9 M (3.0 FT) SOUTHEAST OF A TELEPHONE JS3899'POLE. NOTE--ACCESS TO DATUM POINT IS HAD THROUGH A 5-INCH LOGO CAP. JS3899'THE MARK IS 0.6 METERS NE FROM A WITNESS POST JS3899 JS3899 STATION RECOVERY (1997) JS3899 JS3899'RECOVERY NOTE BY US BUREAU OF RECLAMATION 1997 (DWS) JS3899'THE STATION WAS RECOVERED AND SOME ADDITIONAL INFORMATION FOLLOWS. THE JS3899'STATION IS ABOUT 11.3 MI (18.2 KM) SOUTHEAST OF THE STATE CAPITOL IN JS3899'SACRAMENTO AND 3.5 MI (5.6 KM) NORTH-NORTHWEST OF ELK GROVE. TO REACH JS3899'THE STATION FROM THE INTERSECTION OF STATE HIGHWAY 99 AND CALVINE JS3899'ROAD, GO EAST ON CALVINE ROAD FOR 7.4 MI (11.9 KM) TO THE SOUTHERN JS3899'PACIFIC RAILROAD TRACKS AND THE STATION ON THE LEFT (NORTH) . THE JS3899'STATION IS 173.9 FT (53.0 M) NORTH OF THE CENTERLINE OF CALVINE ROAD, JS3899'40.7 FT (12.4 M) WEST OF THE WEST RAIL OF THE SOUTHERN PACIFIC JS3899'RAILROAD TRACKS, 18.0 FT (5.5 M) WEST OF THE CENTER OF A TRACK ROAD, JS3899'3.9 FT (1.2 M) EAST OF WIRE MESH FENCE, 2.9 FT (0.9 M) SOUTH OF AN JS3899'ABANDONED TELEPHONE POLE, AND 1.7 FT (0.5 M) NORTH OF A CARSONITE JS3899'WITNESS POST. THE STATION WAS OCCUPIED AS PART OF THE SAN JS3899'JOAQUIN-SACRAMENTO RIVER DELTA GPS/VERTICAL PROJECT. JS3899 JS3899 STATION RECOVERY (2002) JS3899 JS3899'RECOVERY NOTE BY FRAME SURVEYING AND MAPPING 2002 (JHF) JS3899'RECOVERED AS DESCRIBED. JS3899 JS3899 STATION RECOVERY (2002) JS3899 JS3899'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2002 (MEI) JS3899'GPS OBSERVATIONS AT THIS MARK FOR 3 SEPARATE SURVEYS--6 OBSERVATIONS-- JS3899'(AND 2 SETS OF REPEAT OBSERVATIONS) BETWEEN 1998 AND 2002 HAVE ALWAYS JS3899'BEEN PROBLEMATIC. NO VISIBLE HORIZON INTERFERENCE IS APPARENT. THERE JS3899'IS A LARGE COMMUNICATIONS TOWER ABOUT 1 MI TO THE EAST THAT MAY BEEN JS3899'CAUSING INTERFERENCE. USE OF GPS AT THIS SITE SEEMS TO BE UNWISE. 1 National Geodetic Survey, Retrieval Date = MARCH 1, 2004 JS1018 *********************************************************************** JS1018 DESIGNATION - GWM 31 USGS JS1018 PID - JS1018 JS1018 STATE/COUNTY- CA/SACRAMENTO JS1018 USGS QUAD - SACRAMENTO EAST (1992) JS1018 JS1018 *CURRENT SURVEY CONTROL JS1018 ___________________________________________________________________ JS1018* NAD 83(1986)- 38 32 22. (N) 121 29 31. (W) SCALED JS1018* NAVD 88 - 7.74 (+/-2cm) 25.4 (feet) VERTCON JS1018 ___________________________________________________________________ JS1018 GEOID HEIGHT- -30.86 (meters) GEOID03 JS1018 JS1018 VERT ORDER - THIRD (See Below) JS1018 JS1018.The horizontal coordinates were scaled from a topographic map and have JS1018.an estimated accuracy of +/- 6 seconds. JS1018 JS1018.The NAVD 88 height was computed by applying the VERTCON shift value to JS1018.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JS1018.The vertical order pertains to the NGVD 29 superseded value. JS1018 JS1018.The geoid height was determined by GEOID03. JS1018 JS1018; North East Units Estimated Accuracy JS1018;SPC CA 2 - 597,010. 2,044,290. MT (+/- 180 meters Scaled) JS1018 JS1018 SUPERSEDED SURVEY CONTROL JS1018 JS1018 NGVD 29 (??/??/??) 6.97 (m) 22.9 (f) RESET 3 JS1018 JS1018.Superseded values are not recommended for survey control. JS1018.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JS1018.See file dsdata.txt to determine how the superseded data were derived. JS1018 JS1018_U.S. NATIONAL GRID SPATIAL ADDRESS: 10SFH314667(NAD 83) JS1018_MARKER: DD = SURVEY DISK JS1018_SETTING: 30 = STEP JS1018_STAMPING: GWM 31 23 1937 JS1018_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JS1018 JS1018 HISTORY - Date Condition Report By JS1018 HISTORY - 1937 MONUMENTED USGS JS1018 HISTORY - 1945 GOOD NGS JS1018 HISTORY - 20040210 MARK NOT FOUND INDIV JS1018 JS1018 STATION DESCRIPTION JS1018 JS1018'DESCRIBED BY NATIONAL GEODETIC SURVEY 1945 JS1018'AT SACRAMENTO. JS1018'AT SACRAMENTO, AT SACRAMENTO JUNIOR COLLEGE, 209.0 FEET EAST OF JS1018'EAST CURB OF FREEPORT ROAD, AT THE SOUTH END OF ARCADE BORDERING JS1018'ALONG THE WEST SIDE OF THE SOUTHWEST WING OF THE MAIN (BRICK) JS1018'BUILDING AT THE COLLEGE, 30.0 FEET NORTH OF THE SOUTHWEST CORNER JS1018'OF THE BUILDING, AT A SET OF CONCRETE STEPS LEADING TO ARCADE, JS1018'SET IN THE TOP OF THE SOUTH END OF THE SECOND STEP FROM THE JS1018'BOTTOM, 1.0 FOOT NORTH OF THE SOUTH END OF THE STEP, 1.0 FOOT JS1018'WEST OF THE WEST FACE OF THE BUILDING, 0.4 FOOT ABOVE THE GROUND. JS1018'A UNITED STATES GEOLOGICAL SURVEY STANDARD DISK, STAMPED GWM JS1018'31 23 1937. JS1018 JS1018 STATION RECOVERY (2004) JS1018 JS1018'RECOVERY NOTE BY INDIVIDUAL CONTRIBUTORS 2004 JS1018'THE BRICK BUILDING, ARCADE, AND STEPS REFERRED TO AS THE ORIGINAL SITE JS1018'OF THE BENCHMARK NO LONGER EXIST, AND THE AREA WHERE THE BENCHMARK JS1018'SHOULD BE IS NOW A PARKING LOT. THE DATE OF DEMOLITION FOR THE JS1018'BUILDING IS UNKNOWN BUT PROBABLY IN THE 1970'S.