1 National Geodetic Survey, Retrieval Date = JULY 10, 2003 EH1179 *********************************************************************** EH1179 DESIGNATION - E 168 EH1179 PID - EH1179 EH1179 STATE/COUNTY- AR/ARKANSAS EH1179 USGS QUAD - ULM (1968) EH1179 EH1179 *CURRENT SURVEY CONTROL EH1179 ___________________________________________________________________ EH1179* NAD 83(1986)- 34 33 51. (N) 091 28 23. (W) SCALED EH1179* NAVD 88 - 64.142 (meters) 210.44 (feet) ADJUSTED EH1179 ___________________________________________________________________ EH1179 GEOID HEIGHT- -26.60 (meters) GEOID99 EH1179 DYNAMIC HT - 64.081 (meters) 210.24 (feet) COMP EH1179 MODELED GRAV- 979,681.1 (mgal) NAVD 88 EH1179 EH1179 VERT ORDER - FIRST CLASS II EH1179 EH1179.The horizontal coordinates were scaled from a topographic map and have EH1179.an estimated accuracy of +/- 6 seconds. EH1179 EH1179.The orthometric height was determined by differential leveling EH1179.and adjusted by the National Geodetic Survey in June 1991. EH1179 EH1179.The geoid height was determined by GEOID99. EH1179 EH1179.The dynamic height is computed by dividing the NAVD 88 EH1179.geopotential number by the normal gravity value computed on the EH1179.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 EH1179.degrees latitude (g = 980.6199 gals.). EH1179 EH1179.The modeled gravity was interpolated from observed gravity values. EH1179 EH1179; North East Units Estimated Accuracy EH1179;SPC AR S - 610,590. 448,360. MT (+/- 180 meters Scaled) EH1179 EH1179 SUPERSEDED SURVEY CONTROL EH1179 EH1179 NGVD 29 - 64.167 (m) 210.52 (f) ADJUSTED 1 2 EH1179 EH1179.Superseded values are not recommended for survey control. EH1179.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. EH1179.See file dsdata.txt to determine how the superseded data were derived. EH1179 EH1179_U.S. NATIONAL GRID SPATIAL ADDRESS: 15SXU400257(NAD 83) EH1179_MARKER: DB = BENCH MARK DISK EH1179_SETTING: 30 = CULVERT EH1179_STAMPING: E 168 1955 EH1179_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY EH1179_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR EH1179+SATELLITE: SATELLITE OBSERVATIONS - April 22, 2003 EH1179 EH1179 HISTORY - Date Condition Report By EH1179 HISTORY - 1955 MONUMENTED CGS EH1179 HISTORY - 20030422 GOOD USACE EH1179 EH1179 STATION DESCRIPTION EH1179 EH1179'DESCRIBED BY COAST AND GEODETIC SURVEY 1955 EH1179'1.05 MI SW FROM ULM. EH1179'ABOUT 1.05 MILES SOUTHWEST ALONG THE ST. LOUIS SOUTHWESTERN RAILWAY EH1179'FROM THE STATION SIGN AT ULM, ABOUT 0.25 MILE SOUTHWEST OF MILE POLE EH1179'227, ABOUT 150 YARDS SOUTHWEST OF THE ARKANSAS-PRAIRIE COUNTY LINE, 86 EH1179'1/2 FEET NORTHWEST OF NORTHWEST RAIL, 24 FEET SOUTHEAST OF CENTER LINE EH1179'OF U.S. HIGHWAY 79, IN THE TOP OF THE SOUTHWEST END OF SOUTHEAST HEAD EH1179'WALL OF A 5-FOOT CONCRETE CULVERT UNDER HIGHWAY 79, ABOUT 3 FEET BELOW EH1179'LEVEL OF TRACK AND ABOUT LEVEL WITH HIGHWAY. EH1179 EH1179 STATION RECOVERY (2003) EH1179 EH1179'RECOVERY NOTE BY US ARMY CORPS OF ENGINEERS 2003 (DLB) EH1179'RECOVERED IN GOOD CONDITION.