1 National Geodetic Survey, Retrieval Date = JUNE 2, 2003 GW1296 *********************************************************************** GW1296 DESIGNATION - SAM GW1296 PID - GW1296 GW1296 STATE/COUNTY- VA/CAMPBELL GW1296 USGS QUAD - RUSTBURG (1985) GW1296 GW1296 *CURRENT SURVEY CONTROL GW1296 ___________________________________________________________________ GW1296* NAD 83(1993)- 37 22 26.99383(N) 079 01 44.22851(W) ADJUSTED GW1296* NAVD 88 - 246.977 (meters) 810.29 (feet) ADJUSTED GW1296 ___________________________________________________________________ GW1296 X - 965,850.690 (meters) COMP GW1296 Y - -4,982,311.198 (meters) COMP GW1296 Z - 3,850,605.695 (meters) COMP GW1296 LAPLACE CORR- 3.61 (seconds) DEFLEC99 GW1296 ELLIP HEIGHT- 215.52 (meters) (05/17/02) GPS OBS GW1296 GEOID HEIGHT- -31.48 (meters) GEOID99 GW1296 DYNAMIC HT - 246.798 (meters) 809.70 (feet) COMP GW1296 MODELED GRAV- 979,898.2 (mgal) NAVD 88 GW1296 GW1296 HORZ ORDER - SECOND GW1296 VERT ORDER - SECOND CLASS 0 GW1296 ELLP ORDER - FOURTH CLASS II GW1296 GW1296.The horizontal coordinates were established by classical geodetic methods GW1296.and adjusted by the National Geodetic Survey in September 1995. GW1296 GW1296.The orthometric height was determined by differential leveling GW1296.and adjusted by the National Geodetic Survey in June 1991. GW1296 GW1296.The X, Y, and Z were computed from the position and the ellipsoidal ht. GW1296 GW1296.The Laplace correction was computed from DEFLEC99 derived deflections. GW1296 GW1296.The ellipsoidal height was determined by GPS observations GW1296.and is referenced to NAD 83. GW1296 GW1296.The geoid height was determined by GEOID99. GW1296 GW1296.The dynamic height is computed by dividing the NAVD 88 GW1296.geopotential number by the normal gravity value computed on the GW1296.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 GW1296.degrees latitude (g = 980.6199 gals.). GW1296 GW1296.The modeled gravity was interpolated from observed gravity values. GW1296 GW1296; North East Units Scale Converg. GW1296;SPC VA S - 1,115,637.323 3,453,151.578 MT 0.99994541 -0 19 15.7 GW1296;UTM 17 - 4,138,203.629 674,522.130 MT 0.99997519 +1 11 48.3 GW1296 GW1296: Primary Azimuth Mark Grid Az GW1296:SPC VA S - SAM AZ MK 265 48 12.6 GW1296:UTM 17 - SAM AZ MK 264 17 08.6 GW1296 GW1296|---------------------------------------------------------------------| GW1296| PID Reference Object Distance Geod. Az | GW1296| dddmmss.s | GW1296| GW1294 SAM AZ MK 2652856.9 | GW1296| GW1295 SAM RM 1 7.148 METERS 31424 | GW1296|---------------------------------------------------------------------| GW1296 GW1296 SUPERSEDED SURVEY CONTROL GW1296 GW1296 ELLIP HT - 215.56 (m) (09/08/95) GP( ) 4 2 GW1296 NAD 83(1993)- 37 22 26.99405(N) 079 01 44.22830(W) AD( ) 2 GW1296 ELLIP HT - 215.56 (m) (11/14/94) GP( ) 4 2 GW1296 NAD 83(1986)- 37 22 26.99847(N) 079 01 44.24197(W) AD( ) 2 GW1296 NAD 27 - 37 22 26.47692(N) 079 01 45.16605(W) AD( ) 2 GW1296 NGVD 29 - 247.197 (m) 811.01 (f) ADJ UNCH 2 0 GW1296 GW1296.Superseded values are not recommended for survey control. GW1296.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. GW1296.See file dsdata.txt to determine how the superseded data were derived. GW1296 GW1296_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPB7452238204(NAD 83) GW1296_MARKER: DS = TRIANGULATION STATION DISK GW1296_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT GW1296_STAMPING: SAM 1964 GW1296_MARK LOGO: CGS GW1296_MAGNETIC: O = OTHER; SEE DESCRIPTION GW1296_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO GW1296+STABILITY: SURFACE MOTION GW1296_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR GW1296+SATELLITE: SATELLITE OBSERVATIONS - April 25, 2003 GW1296 GW1296 HISTORY - Date Condition Report By GW1296 HISTORY - 1964 MONUMENTED CGS GW1296 HISTORY - 1965 GOOD NGS GW1296 HISTORY - 19910110 GOOD HOBBS GW1296 HISTORY - 20030425 GOOD GEOMET GW1296 GW1296 STATION DESCRIPTION GW1296 GW1296'DESCRIBED BY COAST AND GEODETIC SURVEY 1964 (ELH) GW1296'THE STATION IS LOCATED ABOUT 7.5 MILES SOUTHEAST OF LYNCHBURG, GW1296'ABOUT 4 MILES NORTHWEST OF CONCORD ON THE NORTH RIGHT-OF-WAY GW1296'OF U.S. HIGHWAY 460 AND ABOUT 20 FEET HIGHER THAN THE HIGHWAY. GW1296' GW1296'TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAY 460 AND GW1296'U.S. HIGHWAY 501 IN THE EAST PART OF LYNCHBURG, GO SOUTHEAST GW1296'ON U.S. HIGHWAY 460 FOR 6.35 MILES TO THE AZIMUTH MARK ON GW1296'THE LEFT. CONTINUE STRAIGHT AHEAD ON THE HIGHWAY FOR 0.2 MILE GW1296'TO COUNTY ROUTE 659 ON THE LEFT, CONTINUE ON THE HIGHWAY GW1296'FOR 0.05 MILE TO THE STATION ON THE LEFT. GW1296' GW1296'THE STATION IS 76 FEET SOUTHWEST OF TELEPHONE POLE NUMBER 215, GW1296'52 FEET NORTH OF THE CENTER LINE OF U.S. HIGHWAY 460, 18 FEET GW1296'SOUTH OF A BOARD FENCE AND 3.3 FEET NORTHWEST OF A METAL GW1296'WITNESS POST. IT IS A STANDARD DISK SET IN A SQUARE CONCRETE GW1296'POST WHICH PROJECTS 3-INCHES AND STAMPED SAM 1964. GW1296' GW1296'REFERENCE MARK NO. 1 IS 70 FEET NORTH OF THE CENTER LINE GW1296'OF U.S. HIGHWAY 460 AND 1 FOOT SOUTH OF A BOARD FENCE. IT GW1296'IS A STANDARD DISK SET IN A SQUARE CONCRETE POST WHICH PROJECTS GW1296'2-INCHES AND STAMPED SAM NO 1 1964. GW1296' GW1296'THE AZIMUTH MARK IS 31.3 FEET SOUTH OF THE CENTER LINE OF THE GW1296'WEST BOUND TRAFFIC OF U.S. HIGHWAY 460 AND 24 FEET NORTH GW1296'OF THE CENTER LINE OF THE EAST BOUND TRAFFIC OF U.S. HIGHWAY GW1296'460. IT IS A STANDARD DISK CEMENTED IN A DRILL HOLE IN THE GW1296'NORTH END OF A CONCRETE CULVERT WHICH PROJECTS 2-FEET ON THE GW1296'EAST SIDE AND STAMPED SAM 1964. GW1296' GW1296'HEIGHT OF LIGHT ABOVE STATION MARK 1 METERS. GW1296 GW1296 STATION RECOVERY (1965) GW1296 GW1296'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1965 GW1296'6.5 MI E FROM LYNCHBURG. GW1296'ABOUT 6.5 MILES EAST ALONG U.S. HIGHWAY 460 FROM THE JUNCTION GW1296'OF U.S. HIGHWAYS 460 AND 501 AT THE EAST EDGE OF LYNCHBURG, GW1296'TO THE MARK SET IN THE TOP OF A CONCRETE POST PROJECTING 3-INCHES GW1296'ON A HIGH CUT, AND ACROSS THE ROAD FROM SAMS TRUCK STOP, 76.0 GW1296'FEET SOUTHWEST OF TELEPHONE POLE 215, 52.0 FEET NORTH OF GW1296'CENTERLINE OF HIGHWAY, 18.0 FEET SOUTH OF A WHITE BOARD FENCE, GW1296'3.3 FEET NORTHWEST OF A METAL WITNESS SIGN AND IS ABOUT 25 GW1296'FEET ABOVE THE LEVEL OF THE HIGHWAY. GW1296 GW1296 STATION RECOVERY (1991) GW1296 GW1296'RECOVERY NOTE BY HOBBS AND ASSOCIATES 1991 GW1296'RECOVERED IN GOOD CONDITION. GW1296 GW1296 STATION RECOVERY (2003) GW1296 GW1296'RECOVERY NOTE BY GEOMETRICS GPS INCORPORATED 2003 (BCL) GW1296'RECOVERED IN GOOD CONDITION.