1 National Geodetic Survey, Retrieval Date = SEPTEMBER 3, 2003 LX0581 *********************************************************************** LX0581 DESIGNATION - BM C OF M LX0581 PID - LX0581 LX0581 STATE/COUNTY- CT/MIDDLESEX LX0581 USGS QUAD - MIDDLETOWN (1992) LX0581 LX0581 *CURRENT SURVEY CONTROL LX0581 ___________________________________________________________________ LX0581* NAD 83(1986)- 41 33 35. (N) 072 38 58. (W) SCALED LX0581* NAVD 88 - 15.278 (meters) 50.12 (feet) ADJUSTED LX0581 ___________________________________________________________________ LX0581 GEOID HEIGHT- -29.55 (meters) GEOID99 LX0581 DYNAMIC HT - 15.274 (meters) 50.11 (feet) COMP LX0581 MODELED GRAV- 980,304.4 (mgal) NAVD 88 LX0581 LX0581 VERT ORDER - SECOND CLASS 0 LX0581 LX0581.The horizontal coordinates were scaled from a topographic map and have LX0581.an estimated accuracy of +/- 6 seconds. LX0581 LX0581.The orthometric height was determined by differential leveling LX0581.and adjusted by the National Geodetic Survey in June 1991. LX0581 LX0581.The geoid height was determined by GEOID99. LX0581 LX0581.The dynamic height is computed by dividing the NAVD 88 LX0581.geopotential number by the normal gravity value computed on the LX0581.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 LX0581.degrees latitude (g = 980.6199 gals.). LX0581 LX0581.The modeled gravity was interpolated from observed gravity values. LX0581 LX0581; North East Units Estimated Accuracy LX0581;SPC CT - 233,080. 313,190. MT (+/- 180 meters Scaled) LX0581 LX0581 SUPERSEDED SURVEY CONTROL LX0581 LX0581 NGVD 29 - 15.59 (m) 51.1 (f) COMPUTED 2 0 LX0581 LX0581.Superseded values are not recommended for survey control. LX0581.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. LX0581.See file dsdata.txt to determine how the superseded data were derived. LX0581 LX0581_U.S. NATIONAL GRID SPATIAL ADDRESS: 18TXM960035(NAD 83) LX0581_MARKER: DD = SURVEY DISK LX0581_SETTING: 30 = STEP LX0581_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY LX0581 LX0581 HISTORY - Date Condition Report By LX0581 HISTORY - UNK MONUMENTED CT0380 LX0581 HISTORY - 1935 GOOD NGS LX0581 HISTORY - 20030727 MARK NOT FOUND GEOCAC LX0581 LX0581 STATION DESCRIPTION LX0581 LX0581'DESCRIBED BY NATIONAL GEODETIC SURVEY 1935 LX0581'AT MIDDLETOWN. LX0581'AT MIDDLETOWN, MIDDLESEX COUNTY, AT THE TOWN AND CITY HALL, LX0581'IN THE TOP OF THE NORTH END OF THE LOWER STEP, ABOUT 55 FEET WEST LX0581'THE CENTER LINE OF MAIN STREET, AND ABOUT 1 FOOT ABOVE THE LX0581'SIDEWALK. A CITY OF MIDDLETOWN BRONZE DISK. LX0581 LX0581 STATION RECOVERY (2003) LX0581 LX0581'RECOVERY NOTE BY GEOCACHING 2003 (HMM) LX0581'BUILDING NO LONGER EXISTS, NO MARKER FOUND.