1 National Geodetic Survey, Retrieval Date = SEPTEMBER 3, 2003 LX0001 *********************************************************************** LX0001 DESIGNATION - A 9 LX0001 PID - LX0001 LX0001 STATE/COUNTY- CT/TOLLAND LX0001 USGS QUAD - ROCKVILLE (1984) LX0001 LX0001 *CURRENT SURVEY CONTROL LX0001 ___________________________________________________________________ LX0001* NAD 83(1986)- 41 49 02. (N) 072 29 51. (W) SCALED LX0001* NAVD 88 - 78.752 (meters) 258.37 (feet) POSTED LX0001 ___________________________________________________________________ LX0001 GEOID HEIGHT- -29.34 (meters) GEOID99 LX0001 DYNAMIC HT - 78.730 (meters) 258.30 (feet) COMP LX0001 MODELED GRAV- 980,301.1 (mgal) NAVD 88 LX0001 LX0001 VERT ORDER - * POSTED, Code A , SEE BELOW LX0001 LX0001.The horizontal coordinates were scaled from a topographic map and have LX0001.an estimated accuracy of +/- 6 seconds. LX0001 LX0001.The orthometric height was determined by differential leveling LX0001.and adjusted by the National Geodetic Survey in 1992. LX0001.* This is a POSTED BENCH MARK height. Code A indicates a distribution LX0001.rate of 0.0 thru 1.0 mm/km. LX0001 LX0001.The geoid height was determined by GEOID99. LX0001 LX0001.The dynamic height is computed by dividing the NAVD 88 LX0001.geopotential number by the normal gravity value computed on the LX0001.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 LX0001.degrees latitude (g = 980.6199 gals.). LX0001 LX0001.The modeled gravity was interpolated from observed gravity values. LX0001 LX0001; North East Units Estimated Accuracy LX0001;SPC CT - 261,700. 325,780. MT (+/- 180 meters Scaled) LX0001 LX0001 SUPERSEDED SURVEY CONTROL LX0001 LX0001 NGVD 29 - 78.996 (m) 259.17 (f) ADJ UNCH 1 2 LX0001 LX0001.Superseded values are not recommended for survey control. LX0001.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. LX0001.See file dsdata.txt to determine how the superseded data were derived. LX0001 LX0001_U.S. NATIONAL GRID SPATIAL ADDRESS: 18TYM078325(NAD 83) LX0001_MARKER: DB = BENCH MARK DISK LX0001_SETTING: 30 = CULVERT LX0001_STAMPING: 259.173 FT A 9 1923 LX0001_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY LX0001_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR LX0001+SATELLITE: SATELLITE OBSERVATIONS - August 20, 2002 LX0001 LX0001 HISTORY - Date Condition Report By LX0001 HISTORY - 1923 MONUMENTED CGS LX0001 HISTORY - 1951 GOOD NGS LX0001 HISTORY - 20020820 GOOD GEOCAC LX0001 LX0001 STATION DESCRIPTION LX0001 LX0001'DESCRIBED BY NATIONAL GEODETIC SURVEY 1951 LX0001'AT TALCOTTVILLE. LX0001'AT TALCOTTVILLE, TOLLAND COUNTY, ON THE NEW YORK, NEW HAVEN LX0001'AND HARTFORD RAILROAD, ABOUT 1/8 MILE WEST OF THE PASSENGER LX0001'STATION, 13 RAILS WEST OF THE WEST END OF THE FREIGHT STATION, LX0001'20 RAILS WEST OF GRADE CROSSING 20.42, 18 FEET WEST OF THE WEST LX0001'SIDING SWITCH, AT A SMALL CONCRETE CULVERT, IN THE TOP OF THE LX0001'NORTH HEADWALL, AND 12 FEET NORTH OF THE NORTH RAIL. A STANDARD LX0001'DISK, STAMPED 259.173 FT A 9 1923. LX0001 LX0001 STATION RECOVERY (2002) LX0001 LX0001'RECOVERY NOTE BY GEOCACHING 2002 (KWD) LX0001'IN THE TALCOTTVILLE SECTION OF VERNON, TOLLAND COUNTY. FROM THE LX0001'TALCOTTVILLE POST OFFICE ON RT 83, GO NE ON MAIN ST FOR 0.3 MILES. LX0001'TURN RIGHT ONTO ELM ST AND GO SE FOR 0.2 MILES. ENTER THE PATH (FORMER LX0001'RAILROAD BED) ON THE RIGHT AND GO 0.13 MILES TO THE MARK ON THE RIGHT. LX0001'LOCATED AT A SMALL CONCRETE CULVERT, IN THE TOP OF THE NORTH HEADWALL, LX0001'AND 12 FEET NW OF THE PATH. A STANDARD DISK, STAMPED 259.173 FT A-9 LX0001'1923.