1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 AI2994 *********************************************************************** AI2994 SACS - This is a Secondary Airport Control Station. AI2994 DESIGNATION - 45J A AI2994 PID - AI2994 AI2994 STATE/COUNTY- NC/RICHMOND AI2994 USGS QUAD - ROCKINGHAM (1982) AI2994 AI2994 *CURRENT SURVEY CONTROL AI2994 ___________________________________________________________________ AI2994* NAD 83(2001)- 34 53 15.71338(N) 079 46 04.59654(W) ADJUSTED AI2994* NAVD 88 - 109.06 (meters) 357.8 (feet) GPS OBS AI2994 ___________________________________________________________________ AI2994 X - 930,387.709 (meters) COMP AI2994 Y - -5,154,329.426 (meters) COMP AI2994 Z - 3,627,698.824 (meters) COMP AI2994 LAPLACE CORR- -4.50 (seconds) DEFLEC99 AI2994 ELLIP HEIGHT- 77.79 (meters) (02/10/03) GPS OBS AI2994 GEOID HEIGHT- -31.32 (meters) GEOID99 AI2994 AI2994 HORZ ORDER - FIRST AI2994 ELLP ORDER - FOURTH CLASS II AI2994 AI2994.This mark is at Rockingham-Hamlet Airport (45J) AI2994 AI2994.The North Carolina/South Carolina HARNS have been completed but, AI2994.due to contractual restrictions, coordinates for these stations AI2994.will NOT be published in the near future. In the interim, the AI2994.published coordinates in North and South Carolina will not be AI2994.consistent with the Continuously Operating Reference Stations AI2994.(CORS). The HARN coordinates for these stations are available AI2994.upon request. Contact Gary Thompson(919-733-3836), or Lewis AI2994.Lapine(803-896-7700). AI2994. AI2994.In addition, the published North and South Carolina positions AI2994.(NAD 83 (1986)) are NOT consistent with those determined in AI2994.adjacent state readjustments. The discontinuity between stations AI2994.located in North or South Carolina and those in adjacent states AI2994.which have been adjusted to the HARN may be as much as 5 AI2994.decimeters. This will result in a significant loss of accuracy AI2994.over lines crossing such state borders. AI2994 AI2994 AI2994.The horizontal coordinates were established by GPS observations AI2994.and adjusted by the National Geodetic Survey in February 2003. AI2994.This is a SPECIAL STATUS position. See SPECIAL STATUS under the AI2994.DATUM ITEM on the data sheet items page. AI2994 AI2994.The orthometric height was determined by GPS observations and a AI2994.high-resolution geoid model. AI2994 AI2994.GPS derived orthometric heights for airport stations designated as AI2994.PACS or SACS are published to 2 decimal places. This maintains AI2994.centimeter relative accuracy between the PACS and SACS. It does AI2994.not indicate centimeter accuracy relative to other marks which are AI2994.part of the NAVD 88 network. AI2994 AI2994.The X, Y, and Z were computed from the position and the ellipsoidal ht. AI2994 AI2994.The Laplace correction was computed from DEFLEC99 derived deflections. AI2994 AI2994.The ellipsoidal height was determined by GPS observations AI2994.and is referenced to NAD 83. AI2994 AI2994.The geoid height was determined by GEOID99. AI2994 AI2994; North East Units Scale Converg. AI2994;SPC NC - 126,476.827 539,409.656 MT 0.99989266 -0 26 35.6 AI2994;UTM 17 - 3,861,281.747 612,583.609 MT 0.99975622 +0 42 17.2 AI2994 AI2994 SUPERSEDED SURVEY CONTROL AI2994 AI2994 NAD 83(1995)- 34 53 15.71366(N) 079 46 04.59617(W) AD( ) 1 AI2994 ELLIP HT - 77.77 (m) (12/23/99) GP( ) 4 2 AI2994 AI2994.Superseded values are not recommended for survey control. AI2994.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AI2994.See file dsdata.txt to determine how the superseded data were derived. AI2994 AI2994_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPU1258461282(NAD 83) AI2994_MARKER: DH = HORIZONTAL CONTROL DISK AI2994_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AI2994_STAMPING: 45J A 1997 AI2994_MARK LOGO: NGS AI2994_MAGNETIC: T = STEEL SPIKE ADJACENT TO MONUMENT AI2994_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AI2994+STABILITY: SURFACE MOTION AI2994_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AI2994+SATELLITE: SATELLITE OBSERVATIONS - 1997 AI2994 AI2994 HISTORY - Date Condition Report By AI2994 HISTORY - 1997 MONUMENTED NCGS AI2994 AI2994 STATION DESCRIPTION AI2994 AI2994'DESCRIBED BY NORTH CAROLINA GEODETIC SURVEY 1997 (JGG) AI2994'STATION IS LOCATED ABOUT 3.5 MI (5.6 KM) SOUTH OF ROCKINGHAM AT THE AI2994'ROCKINGHAM-HAMLET AIRPORT. AI2994'ALONG US-1 FOR 0.45 MI (0.72 KM) FROM US-74, THENCE SOUTHEAST ALONG SR AI2994'1966-(CAROLINE ST/AIRPORT RD) FOR 2.6 MI (4.2 KM) TO AIRPORT ENTRANCE AI2994'ROAD, THENCE SOUTHWEST ALONG ENTRANCE ROAD FOR 0.2 MI (0.3 KM) TO AI2994'AIRPORT OFFICE, THENCE SOUTHWEST ACROSS MAIN RUNWAY FOR 0.7 MI (1.1 AI2994'KM) TO END OF GRASS LANDING STRIP. AT APPROXIMATE CENTER OF SOUTHWEST AI2994'END. AI2994'MARK IS ABOUT 3-FEET HIGHER THAN THE END OF RUNWAY 4/22 AND FLUSH WITH AI2994'THE GROUND. LOCATED 18.6 FT (5.7 M) SOUTHWEST OF THE CENTERLINE OF AI2994'SOUTHWEST END OF RUNWAY 4/22, 252.2 FT (76.9 M) NORTHWEST OF THE AI2994'CENTER TOP OF CONCRETE SPILLWAY AT SOUTH CORNER OF RUNWAY, 247.5 FT AI2994'(75.4 M) SOUTHEAST OF THE CENTER TOP OF CONCRETE SPILLWAY AT WEST AI2994'CORNER OF RUNWAY, 107.6 FT (32.8 M) EAST OF A FENCE POST, AND 35.1 FT AI2994'(10.7 M) NORTHEAST OF A 4-INCH PINE BOTH WITH REFERENCE TAGS AI2994'THIS STATION IS DESIGNATED AS A SECONDARY AIRPORT CONTROL STATION. 1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 EB2950 *********************************************************************** EB2950 CBN - This is a Cooperative Base Network Control Station. EB2950 DESIGNATION - CORDOVA RESET EB2950 PID - EB2950 EB2950 STATE/COUNTY- NC/RICHMOND EB2950 USGS QUAD - ROCKINGHAM (1982) EB2950 EB2950 *CURRENT SURVEY CONTROL EB2950 ___________________________________________________________________ EB2950* NAD 83(1986)- 34 53 46.64639(N) 079 48 23.58504(W) ADJUSTED EB2950* NAVD 88 - 89.757 (meters) 294.48 (feet) ADJUSTED EB2950 ___________________________________________________________________ EB2950 LAPLACE CORR- -3.87 (seconds) DEFLEC99 EB2950 GEOID HEIGHT- -31.19 (meters) GEOID99 EB2950 DYNAMIC HT - 89.676 (meters) 294.21 (feet) COMP EB2950 MODELED GRAV- 979,730.4 (mgal) NAVD 88 EB2950 EB2950 HORZ ORDER - FIRST EB2950 VERT ORDER - SECOND CLASS II EB2950 EB2950.The North Carolina/South Carolina HARNS have been completed but, EB2950.due to contractual restrictions, coordinates for these stations EB2950.will NOT be published in the near future. In the interim, the EB2950.published coordinates in North and South Carolina will not be EB2950.consistent with the Continuously Operating Reference Stations EB2950.(CORS). The HARN coordinates for these stations are available EB2950.upon request. Contact Gary Thompson(919-733-3836), or Lewis EB2950.Lapine(803-896-7700). EB2950. EB2950.In addition, the published North and South Carolina positions EB2950.(NAD 83 (1986)) are NOT consistent with those determined in EB2950.adjacent state readjustments. The discontinuity between stations EB2950.located in North or South Carolina and those in adjacent states EB2950.which have been adjusted to the HARN may be as much as 5 EB2950.decimeters. This will result in a significant loss of accuracy EB2950.over lines crossing such state borders. EB2950 EB2950 EB2950.The horizontal coordinates were established by classical geodetic methods EB2950.and adjusted by the National Geodetic Survey in July 1986. EB2950 EB2950.The orthometric height was determined by differential leveling EB2950.and adjusted by the National Geodetic Survey in August 2000. EB2950.No vertical observational check was made to the station. EB2950 EB2950.The Laplace correction was computed from DEFLEC99 derived deflections. EB2950 EB2950.The geoid height was determined by GEOID99. EB2950 EB2950.The dynamic height is computed by dividing the NAVD 88 EB2950.geopotential number by the normal gravity value computed on the EB2950.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 EB2950.degrees latitude (g = 980.6199 gals.). EB2950 EB2950.The modeled gravity was interpolated from observed gravity values. EB2950 EB2950; North East Units Scale Converg. EB2950;SPC NC - 127,457.918 535,888.635 MT 0.99989172 -0 27 55.9 EB2950;UTM 17 - 3,862,191.958 609,044.134 MT 0.99974655 +0 40 58.2 EB2950 EB2950: Primary Azimuth Mark Grid Az EB2950:SPC NC - CORDOVA RM 2 222 03 10.9 EB2950:UTM 17 - CORDOVA RM 2 220 54 16.8 EB2950 EB2950|---------------------------------------------------------------------| EB2950| PID Reference Object Distance Geod. Az | EB2950| dddmmss.s | EB2950| EB3207 CORDOVA RM 1 37.768 METERS 01611 | EB2950| EB2952 E ROCKINGHAM SHORT WATER TANK APPROX. 6.0 KM 0335639.7 | EB2950| EB2951 E ROCKINGHAM HANNAH MILL 2 TK APPROX. 4.7 KM 0472943.2 | EB2950| EB2991 CORDOVA 2 6.316 METERS 06948 | EB2950| EB3209 CORDOVA 2 RM 4 13.521 METERS 10839 | EB2950| EB2980 CORDOVA RM 2 APPROX. 0.5 KM 2213515.0 | EB2950| EB2983 FIELD NCGS 1970 APPROX. 0.5 KM 2400625.7 | EB2950| EB3208 CORDOVA RM 3 21.569 METERS 26816 | EB2950|---------------------------------------------------------------------| EB2950 EB2950 SUPERSEDED SURVEY CONTROL EB2950 EB2950 NAD 27 - 34 53 46.08502(N) 079 48 24.38304(W) AD( ) 1 EB2950 NGVD 29 - 90.0 (m) 295. (f) VERT ANG EB2950 EB2950.Superseded values are not recommended for survey control. EB2950.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. EB2950.See file dsdata.txt to determine how the superseded data were derived. EB2950 EB2950_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPU0904462192(NAD 83) EB2950_MARKER: DS = TRIANGULATION STATION DISK EB2950_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT EB2950_STAMPING: CORDOVA 1933 EB2950_MARK LOGO: CGS EB2950_MAGNETIC: O = OTHER; SEE DESCRIPTION EB2950_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO EB2950+STABILITY: SURFACE MOTION EB2950_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR EB2950+SATELLITE: SATELLITE OBSERVATIONS - February 01, 1995 EB2950 EB2950 HISTORY - Date Condition Report By EB2950 HISTORY - 1970 MONUMENTED NCGS EB2950 HISTORY - 1977 GOOD NCGS EB2950 HISTORY - 1979 GOOD NGS EB2950 HISTORY - 19930918 GOOD NCGS EB2950 HISTORY - 19950201 GOOD NCGS EB2950 HISTORY - 19950201 GOOD NCGS EB2950 EB2950 STATION DESCRIPTION EB2950 EB2950'DESCRIBED BY NORTH CAROLINA GEODETIC SURVEY 1970 (EM) EB2950'CORDOVA GOOD (SEE NOTE BELOW). EB2950' EB2950'RM 1 GOOD. DISTANCE 81.80 FT. EB2950' EB2950'RM 2 GOOD. EB2950' EB2950'RM 3 GOOD. DISTANCE 71.19 FT. EB2950' EB2950'NOTE-- MONUMENT LOOKED AS IF IT HAD BEEN TILTED. MONUMENT WAS DUG UP EB2950'AND RESET OVER UNDERGROUND MARKER. EB2950 EB2950 STATION RECOVERY (1977) EB2950 EB2950'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1977 (ACD) EB2950'THE STATION WAS RECOVERED IN GOOD CONDITION AS DESCRIBED IN 1933. EB2950'THE STATION WAS RESET IN 1970 BY NCGS. EB2950' EB2950'REFERENCE MARK 2 AND 3 WERE RECOVERED AS DESCRIBED AND REFERENCE MARK EB2950'1 WAS SEARCHED FOR BUT NOT FOUND. REFERENCE MARK 3 HAS DEFINITELY EB2950'BEEN MOVED SINCE THE ARROW NOW POINTS NORTHWEST. LINE OF SIGHT TO EB2950'NCGS STATION --NORMAN-- IS BLOCKED BY PECAN TREE LIMBS AND LINE OF EB2950'SIGHT TO NCGS STATION --FIELD-- IS BLOCKED BY TREES AND GRAPE EB2950'ORCHARD. EB2950' EB2950'THE STATION IS ABOUT 1.8 MILES SOUTHEAST OF CORDOVA AND 3.6 MILES EB2950'SOUTHWEST OF ROCKINGHAM. EB2950' EB2950'TO REACH THE STATION FROM THE INTERSECTION OF US 1 WITH THE EB2950'SOUTHERNMOST ENDING OF US 220 IN SOUTHWEST ROCKINGHAM, PROCEED EB2950'SOUTHWESTERLY ALONG US 1 FOR 2.25 MILES TO STATION ON LEFT, AT THE TOP EB2950'OF THE SOUTHERNMOST RISE BEFORE SOLOMONS CREEK, BETWEEN THE HIGHWAY EB2950'AND A LARGE SCUPPERNONG GRAPE ORCHARD, 0.25 MILE NORTHEAST OF EB2950'INTERSECTION WITH SR 1106 (WEST). EB2950' EB2950'STATION MARK IS A STANDARD DISK STAMPED---CORDOVA 1933---SET IN A EB2950'SQUARE CONCRETE MONUMENT, WHICH IS 1 INCH BELOW THE GROUND SURFACE. EB2950'THE MARK IS 25.3 FEET SOUTHEAST OF THE CENTERLINE OF US 1, 70.4 FEET EB2950'EAST OF REFERENCE MARK 3, 1.7 FEET SOUTHEAST OF WITNESS POST WITH EB2950'SIGN, 6.2 FEET NORTH OF 4 INCH GRAPE VINE SUPPORT POST WITH EB2950'REFERENCE TAG, 15.2 FEET WEST-SOUTHWEST OF 4 INCH GRAPE VINE SUPPORT EB2950'POST WITH REFERENCE TAG AND 24.6 FEET NORTHEAST OF 4 INCH GRAPE VINE EB2950'SUPPORT POST WITH REFERENCE TAG. EB2950' EB2950'REFERENCE MARK 2 IS A STANDARD DISK STAMPED---CORDOVA NO 2 1933--, SET EB2950'IN THE TOP OF A SQUARE CONCRETE MONUMENT, WHICH IS 3 INCHES ABOVE THE EB2950'GROUND SURFACE. REFERENCE MARK 3 IS A STANDARD DISK STAMPED---CORDOVA EB2950'NO 3 1933---, SET IN THE TOP OF A SQUARE CONCRETE MONUMENT, WHICH IS EB2950'FLUSH WITH THE GROUND SURFACE. EB2950 EB2950 STATION RECOVERY (1979) EB2950 EB2950'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1979 (CLN) EB2950'THE STATION MARK, RESET IN 1970, REFERENCE MARK 2 AND REFERENCE MARK EB2950'3 WERE RECOVERED. THE STATION MARK IS NOW ABOUT 1 FOOT SOUTHEAST OF EB2950'A GRADER DITCH. REFERENCE MARK 3, DISTURBED BUT SOLID IN THE GROUND EB2950'WITH THE ARROW POINTING ABOUT 180 DEGREES CLOCKWISE FROM THE EB2950'STATION. THE DISTANCE TO REFERENCE MARK 3 WAS FOUND TO BE 6.38 FEET EB2950'GREATER AND THE DIRECTION WAS NOTED TO BE 31 MINUTES AND 37 SECONDS EB2950'GREATER WHEN COMPAIRED TO THE 1933 DESCRIPTION. HOWEVER IT IS EB2950'BELIEVED THAT THE REFERENCE MARK WAS UPROOTED AND RESET BY STATE EB2950'HIGHWAY DEPARTMENT. CORDOVA 2 AND REFERENCE MARK 4 WERE ESTABLISHED EB2950'AT THIS TIME AND CORDOVA 1933 WAS LEFT INTACT. EB2950' EB2950'A NEW DESCRIPTION FOLLOWS. EB2950' EB2950'THE STATION IS ABOUT 3-1/2 MILES SOUTH OF ROCKINGHAM ALONG THE EB2950'SOUTHEAST SIDE OF U.S. HIGHWAY 1 ON ROAD RIGHT-OF-WAY. EB2950' EB2950'TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAYS 220 AND 1 EB2950'WHICH IS ABOUT 1 MILE SOUTH OF THE CENTER OF ROCKINGHAM, GO SOUTH EB2950'ON HIGHWAY 1 FOR 2.15 MILES TO THE JUNCTION WITH SR 1108, A PAVED EB2950'CROSSROAD. CONTINUE SOUTHERLY ON U.S. 1 FOR 0.5 MILE TO THE THIRD EB2950'RISE IN THE ROAD AND THE MARK ON THE LEFT. EB2950' EB2950'THE STATION MARKS ARE STANDARD DISK STAMPED---CORDOVA 1933---THE EB2950'SURFACE MARK IS SET IN THE TOP OF A 12-INCH SQUARE CONCRETE POST THAT EB2950'IS FLUSH WITH THE GROUND. THE UNDERGROUND MARK WAS NOT EB2950'INSPECTED. THEY ARE ABOUT 1 FOOT SOUTHEAST OF A GRADER DITCH, 25.5 EB2950'FEET SOUTHEAST OF THE CENTERLINE OF U.S. HIGHWAY 1, 66 FEET EB2950'EAST-SOUTHEAST OF POWERLINE POLE 7894 AND 2 FEET SOUTH OF A METAL EB2950'WITNESS POST. EB2950' EB2950'REFERENCE MARK 3 IS A STANDARD DISK STAMPED---CORDOVA NO3 1933--- EB2950'SET IN THE TOP OF A 12-INCH SQUARE CONCRETE POST THAT PROJECTS 6 EB2950'INCHES. IT IS 28 FEET NORTHWEST OF THE CENTERLINE OF HIGHWAY 1, EB2950'16.5 FEET SOUTH-SOUTHWEST OF POWERLINE POLE 7894 AND 5 FEET EB2950'NORTHWEST OF THE GRADER DITCH. THE ARROW IS POINTING ABOUT 180 EB2950'DEGREES CLOCKWISE FROM THE STATION. EB2950' EB2950'REFERENCE MARK 4 IS A STANDARD DISK STAMPED---CORDOVA 2 NO 4 1979--- EB2950'SET IN THE TOP OF A 14-INCH SQUARE CONCRETE POST, FLUSH WITH THE EB2950'GROUND AND 6 INCHES NORTHEAST OF THE END POST OF THE FOURTH ROW OF EB2950'GRAPE ARBORS. IT IS 67 FEET SOUTHEAST OF THE CENTERLINE OF HIGHWAY EB2950'AND ABOUT 1 FOOT HIGHER THAN THE STATION MARK. EB2950' EB2950'CORDOVA 2 STATION MARKS ARE STANDARD DISKS STAMPED---CORDOVA 2 EB2950'1979---. THE SURFACE DISK IS SET IN THE TOP OF A 12-INCH SQUARE EB2950'CONCRETE POST THAT IS RECESSED 10-INCHES BELOW THE GROUND EB2950'SURFACE. THE UNDERGROUND DISK IS SET IN AN IRREGULAR MASS OF CONCRETE EB2950'4 FEET BELOW THE GROUND SURFACE. THEY ARE 242 FEET SOUTH-SOUTHWEST EB2950'OF POWERLINE POLE 7893, 84.3 FEET EAST OF POWERLINE POLE 7894, 36.6 EB2950'FEET SOUTHEAST OF THE CENTERLINE OF HIGHWAY, 3 FEET NORTHEAST OF THE EB2950'NORTHEAST END OF GRAPE ARBORS AND 1.5 FEET NORTHWEST OF A METAL EB2950'WITNESS POST AND SIGN. EB2950' EB2950'REFERENCE MARK 2 IS A STANDARD DISK STAMPED---CORDOVA NO 2 1933--- EB2950'SET IN THE TOP OF A 14-INCH SQUARE CONCRETE POST, PROJECTING 6 EB2950'INCHES. IT IS 29 FEET NORTHWEST OF THE CENTERLINE OF HIGHWAY, 4.5 EB2950'FEET WEST OF HIGHWAY SPEED LIMIT SIGN AND 1.5 FEET SOUTHEAST OF A EB2950'RAIL FENCE. EB2950' EB2950'TO REACH REFERENCE MARK 2 FROM THE STATION, GO SOUTHWEST ON U.S. EB2950'HIGHWAY 1 FOR 0.35 MILES TO THE MARK ON THE RIGHT. EB2950 EB2950 STATION RECOVERY (1993) EB2950 EB2950'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1993 (LWA) EB2950'RECOVERED AS DESCRIBED. EB2950 EB2950 STATION RECOVERY (1995) EB2950 EB2950'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1995 (JGG) EB2950'RECOVERED BY NCGS IN 1995. STATION MARK, REFERENCE MARK 4 AND CORDOVA EB2950'2 WERE FOUND IN GOOD CONDITION. REFERENCE MARK 3 WAS FOUND DISTURBED, EB2950'LEANING ABOUT 20 DEGREES TO THE WEST AND WITH ARROW POINTING ABOUT 180 EB2950'DEGREES FROM STATION. THE AZIMUTH MARK WAS NOT FOUND. LOCATED ABOUT EB2950'3.5 MI (5.6 KM) SOUTH OF ROCKINGHAM. ALONG US 1 FOR 2.65 MI (4.26 KM) EB2950'SOUTH FROM US 220, ABOUT 1 MILE (1.6 KM) SOUTH OF ROCKINGHAM . MARK IS EB2950'FLUSH WITH THE GROUND. LOCATED 1.5 FT (0.5 M) SOUTHEAST OF A GRADED EB2950'DITCH, 26.0 FT (7.9 M) SOUTHEAST OF THE CENTERLINE OF US 1, 21.4 FT EB2950'(6.5 M) WEST OF A WITNESS POST, 20.72 FT (6.32 M) SOUTHWEST OF CORDOVA EB2950'2 1979, 44.33 FT (13.51 M) WEST OF REFERENCE MARK 4--AND 66.1 FT (20.1 EB2950'M) EAST-SOUTHEAST OF POWER POLE (S13), 78.6 FT (24.0 M) EB2950'NORTH-NORTHEAST OF A 10-INCH HICKORY--BOTH WITH REFERENCE TAGS. EB2950'REFERENCE MARK 3 PROJECTS 6-INCHES ABOVE GROUND. LOCATED 26.8 FT (8.2 EB2950'M) NORTHWEST OF THE CENTERLINE OF US 1, 5 FT (1.5 M) NORTHWEST OF THE EB2950'GRADER DITCH, AND 17.0 FT (5.2 M) SOUTH-SOUTHWEST OF A POWER POLE WITH EB2950'A REFERENCE TAG. REFERENCE MARK 4 STAMPED---CORDOVA 2 NO 4 1979---, IS EB2950'FLUSH WITH THE GROUND. LOCATED 67.0 FT (20.4 M) SOUTHEAST OF THE EB2950'CENTERLINE OF US 1, 29.9 FT (9.1 M) SOUTHEAST OF A WITNESS POST, 44.33 EB2950'FT (13.51 M) EAST OF CORDOVA 1933 AND 31.07 FT (9.47 M) SOUTH OF EB2950'CORDOVA 2 1979. NGS STATION CORDOVA 2---STAMPED CORDOVA 2 1979---, IS EB2950'RECESSED ABOUT 10-INCHES BELOW GROUND. LOCATED 35.7 FT (10.9 M) EB2950'SOUTHEAST OF THE CENTERLINE OF US 1, 1.5 FT (0.5 M) NORTHWEST OF A EB2950'METAL WITNESS POST AND SIGN, 20.72 FT (6.32 M) NORTHEAST OF CORDOVA EB2950'1933, 31.07 FT (9.47 M) NORTH OF REFERENCE MARK 4--AND 242.4 FT (73.9 EB2950'M) SOUTH-SOUTHWEST OF POWER POLE (S12), 84.3 FT (25.7 M) EAST OF POWER EB2950'POLE (S13)--BOTH WITH REFERENCE TAGS. EB2950 EB2950 STATION RECOVERY (1995) EB2950 EB2950'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1995 (JGG) EB2950'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 AB6822 *********************************************************************** AB6822 CBN - This is a Cooperative Base Network Control Station. AB6822 DESIGNATION - GRANNY AB6822 PID - AB6822 AB6822 STATE/COUNTY- NC/RICHMOND AB6822 USGS QUAD - NORMAN (1983) AB6822 AB6822 *CURRENT SURVEY CONTROL AB6822 ___________________________________________________________________ AB6822* NAD 83(1986)- 35 08 07.62528(N) 079 41 14.59020(W) ADJUSTED AB6822* NAVD 88 - 169.890 (meters) 557.38 (feet) ADJUSTED AB6822 ___________________________________________________________________ AB6822 LAPLACE CORR- -4.25 (seconds) DEFLEC99 AB6822 GEOID HEIGHT- -31.10 (meters) GEOID99 AB6822 DYNAMIC HT - 169.734 (meters) 556.87 (feet) COMP AB6822 MODELED GRAV- 979,715.0 (mgal) NAVD 88 AB6822 AB6822 HORZ ORDER - FIRST AB6822 VERT ORDER - SECOND CLASS II AB6822 AB6822.The North Carolina/South Carolina HARNS have been completed but, AB6822.due to contractual restrictions, coordinates for these stations AB6822.will NOT be published in the near future. In the interim, the AB6822.published coordinates in North and South Carolina will not be AB6822.consistent with the Continuously Operating Reference Stations AB6822.(CORS). The HARN coordinates for these stations are available AB6822.upon request. Contact Gary Thompson(919-733-3836), or Lewis AB6822.Lapine(803-896-7700). AB6822. AB6822.In addition, the published North and South Carolina positions AB6822.(NAD 83 (1986)) are NOT consistent with those determined in AB6822.adjacent state readjustments. The discontinuity between stations AB6822.located in North or South Carolina and those in adjacent states AB6822.which have been adjusted to the HARN may be as much as 5 AB6822.decimeters. This will result in a significant loss of accuracy AB6822.over lines crossing such state borders. AB6822 AB6822 AB6822.The horizontal coordinates were established by GPS observations AB6822.and adjusted by the National Geodetic Survey in November 1996. AB6822 AB6822.The orthometric height was determined by differential leveling AB6822.and adjusted by the National Geodetic Survey in August 2000. AB6822 AB6822.The Laplace correction was computed from DEFLEC99 derived deflections. AB6822 AB6822.The geoid height was determined by GEOID99. AB6822 AB6822.The dynamic height is computed by dividing the NAVD 88 AB6822.geopotential number by the normal gravity value computed on the AB6822.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 AB6822.degrees latitude (g = 980.6199 gals.). AB6822 AB6822.The modeled gravity was interpolated from observed gravity values. AB6822 AB6822; North East Units Scale Converg. AB6822;SPC NC - 153,904.901 546,962.930 MT 0.99987464 -0 23 48.3 AB6822;UTM 17 - 3,888,852.703 619,584.029 MT 0.99977624 +0 45 19.8 AB6822 AB6822 SUPERSEDED SURVEY CONTROL AB6822 AB6822.No superseded survey control is available for this station. AB6822 AB6822_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPU1958488853(NAD 83) AB6822_MARKER: DH = HORIZONTAL CONTROL DISK AB6822_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AB6822_STAMPING: GRANNY 1993 AB6822_MARK LOGO: NCGS AB6822_PROJECTION: FLUSH AB6822_MAGNETIC: T = STEEL SPIKE ADJACENT TO MONUMENT AB6822_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AB6822+STABILITY: SURFACE MOTION AB6822_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AB6822+SATELLITE: SATELLITE OBSERVATIONS - January 22, 1998 AB6822 AB6822 HISTORY - Date Condition Report By AB6822 HISTORY - 1993 MONUMENTED NCGS AB6822 HISTORY - 19950131 GOOD NCGS AB6822 HISTORY - 19980122 GOOD NCGS AB6822 AB6822 STATION DESCRIPTION AB6822 AB6822'DESCRIBED BY NORTH CAROLINA GEODETIC SURVEY 1993 (EWB) AB6822'STATION IS LOCATED ABOUT 3.2 MI (5.1 KM) SOUTHEAST OF NORMAN AND 6.1 AB6822'MI (9.8 KM) NORTHEAST OF ELLERBE. PROCEED ALONG SR 1461 (RUMMAGE PACK AB6822'HOUSE ROAD) FOR 0.75 MI (1.21 KM) SOUTHEAST FROM NC 73 T-INTERSECTION, AB6822'THENCE 0.85 MI (1.37 KM) SOUTHEAST ALONG SR 1460 (GRANNY RUMMAGE ROAD) AB6822'TO SR 1458 (JONES SPRING CHURCH ROAD) AND STATION IN THE SHOULDER AB6822'APPROXIMATELY 325 FT (99.1 M) NORTHWEST OF T-INTERSECTION. MARK IS AB6822'ABOUT LEVEL WITH THE ROAD AND IS FLUSH WITH THE GROUND. LOCATED 18.7 AB6822'FT (5.7 M) SOUTHWEST OF THE CENTERLINE OF THE ROAD, 331.0 FT (100.9 M) AB6822'NORTHWEST OF THE CENTERLINE INTERSECTION OF THE ROADS--AND 62.6 FT AB6822'(19.1 M) WEST-NORTHWEST OF A TELEPHONE PEDESTAL AT A POWER POLE, 127.3 AB6822'FT (38.8 M) SOUTHEAST OF A 10-INCH PINE, AND 148.5 FT (45.3 M) SOUTH AB6822'OF A 14-INCH PINE--ALL THREE WITH REFERENCE TAGS. AB6822 AB6822 STATION RECOVERY (1995) AB6822 AB6822'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1995 (JGG) AB6822'STATION IS LOCATED ABOUT 3.2 MI (5.1 KM) SOUTHEAST OF NORMAN AND 6.1 AB6822'MI (9.8 KM) NORTHEAST OF ELLERBE. PROCEED ALONG SR 1461 (RUMMAGE PACK AB6822'HOUSE ROAD) FOR 0.75 MI (1.21 KM) SOUTHEAST FROM 73 T-INTERSECTION, AB6822'THENCE 0.85 MI (1.37 KM) SOUTHEAST ALONG SR 1460 (GRANNY RUMMAGE ROAD) AB6822'TO SR 1458 (JONES SPRING CHURCH ROAD) AND STATION IN THE SHOULDER AB6822'APPROXIMATELY 325-FEET NORTHWEST OF T-INTERSECTION. MARK IS ABOUT AB6822'LEVEL WITH THE ROAD AND IS FLUSH WITH THE GROUND. LOCATED 18.7 FT (5.7 AB6822'M) SOUTHWEST OF THE CENTERLINE OF THE ROAD, 331.0 FT (100.9 M) AB6822'NORTHWEST OF THE CENTERLINE INTERSECTION OF THE ROADS--AND 62.6 FT AB6822'(19.1 M) WEST-NORTHWEST OF A TELEPHONE PEDESTAL AT A POWER POLE, 127.3 AB6822'FT (38.8 M) SOUTHEAST OF A 10-INCH PINE, AND 148.5 FT (45.3 M) SOUTH AB6822'OF A 14-INCH PINE--ALL THREE WITH REFERENCE TAGS. AB6822 AB6822 STATION RECOVERY (1998) AB6822 AB6822'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1998 (JGG) AB6822'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 AB6825 *********************************************************************** AB6825 CBN - This is a Cooperative Base Network Control Station. AB6825 DESIGNATION - HOFFMAN SCH AB6825 PID - AB6825 AB6825 STATE/COUNTY- NC/RICHMOND AB6825 USGS QUAD - HOFFMAN (1982) AB6825 AB6825 *CURRENT SURVEY CONTROL AB6825 ___________________________________________________________________ AB6825* NAD 83(1986)- 35 01 38.57045(N) 079 32 51.68746(W) ADJUSTED AB6825* NAVD 88 - 127.297 (meters) 417.64 (feet) ADJUSTED AB6825 ___________________________________________________________________ AB6825 LAPLACE CORR- -4.81 (seconds) DEFLEC99 AB6825 GEOID HEIGHT- -31.73 (meters) GEOID99 AB6825 DYNAMIC HT - 127.179 (meters) 417.25 (feet) COMP AB6825 MODELED GRAV- 979,705.3 (mgal) NAVD 88 AB6825 AB6825 HORZ ORDER - FIRST AB6825 VERT ORDER - SECOND CLASS II AB6825 AB6825.The North Carolina/South Carolina HARNS have been completed but, AB6825.due to contractual restrictions, coordinates for these stations AB6825.will NOT be published in the near future. In the interim, the AB6825.published coordinates in North and South Carolina will not be AB6825.consistent with the Continuously Operating Reference Stations AB6825.(CORS). The HARN coordinates for these stations are available AB6825.upon request. Contact Gary Thompson(919-733-3836), or Lewis AB6825.Lapine(803-896-7700). AB6825. AB6825.In addition, the published North and South Carolina positions AB6825.(NAD 83 (1986)) are NOT consistent with those determined in AB6825.adjacent state readjustments. The discontinuity between stations AB6825.located in North or South Carolina and those in adjacent states AB6825.which have been adjusted to the HARN may be as much as 5 AB6825.decimeters. This will result in a significant loss of accuracy AB6825.over lines crossing such state borders. AB6825 AB6825 AB6825.The horizontal coordinates were established by GPS observations AB6825.and adjusted by the National Geodetic Survey in November 1996. AB6825 AB6825.The orthometric height was determined by differential leveling AB6825.and adjusted by the National Geodetic Survey in August 2000. AB6825.No vertical observational check was made to the station. AB6825 AB6825.The Laplace correction was computed from DEFLEC99 derived deflections. AB6825 AB6825.The geoid height was determined by GEOID99. AB6825 AB6825.The dynamic height is computed by dividing the NAVD 88 AB6825.geopotential number by the normal gravity value computed on the AB6825.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 AB6825.degrees latitude (g = 980.6199 gals.). AB6825 AB6825.The modeled gravity was interpolated from observed gravity values. AB6825 AB6825; North East Units Scale Converg. AB6825;SPC NC - 141,837.771 559,626.416 MT 0.99988022 -0 18 58.0 AB6825;UTM 17 - 3,877,043.358 632,486.323 MT 0.99981633 +0 50 01.3 AB6825 AB6825: Primary Azimuth Mark Grid Az AB6825:SPC NC - BLUES 049 38 43.8 AB6825:UTM 17 - BLUES 048 29 44.5 AB6825 AB6825|---------------------------------------------------------------------| AB6825| PID Reference Object Distance Geod. Az | AB6825| dddmmss.s | AB6825| AG9769 BLUES APPROX. 0.5 KM 0491945.8 | AB6825|---------------------------------------------------------------------| AB6825 AB6825 SUPERSEDED SURVEY CONTROL AB6825 AB6825.No superseded survey control is available for this station. AB6825 AB6825_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPU3248677043(NAD 83) AB6825_MARKER: DH = HORIZONTAL CONTROL DISK AB6825_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AB6825_STAMPING: HOFFMANSCH 1993 AB6825_MARK LOGO: NCGS AB6825_PROJECTION: FLUSH AB6825_MAGNETIC: B = BAR MAGNET IMBEDDED IN MONUMENT AB6825_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AB6825+STABILITY: SURFACE MOTION AB6825_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AB6825+SATELLITE: SATELLITE OBSERVATIONS - November 07, 1996 AB6825 AB6825 HISTORY - Date Condition Report By AB6825 HISTORY - 1993 MONUMENTED NCGS AB6825 HISTORY - 19950131 GOOD NCGS AB6825 HISTORY - 19950131 GOOD NCGS AB6825 HISTORY - 19961107 GOOD NCGS AB6825 AB6825 STATION DESCRIPTION AB6825 AB6825'DESCRIBED BY NORTH CAROLINA GEODETIC SURVEY 1993 (EWB) AB6825'STATION IS LOCATED ABOUT 14.0 MI (22.5 KM) EAST-NORTHEAST OF AB6825'ROCKINGHAM IN HOFFMAN. ALONG SR 1474 (SCHOOL DRIVE) FOR 0.25 MI (0.40 AB6825'KM) SOUTHEAST FROM US 1 TO SR 1601 (BLUES BRIDGE ROAD) ON CENTERLINE AB6825'PROLONGATION OF SR 1601. MARK IS LEVEL WITH THE ROAD AND FLUSH WITH AB6825'THE GROUND. LOCATED 49.4 FT (15.1 M) WEST OF THE CENTERLINE OF THE AB6825'ROAD, 74.2 FT (22.6 M) WEST OF A METAL ROAD SIGN, 89.4 FT (27.2 M) AB6825'SOUTH OF WEST END OF A HIGHWAY CULVERT, 113.5 FT (34.6 M) SOUTHWEST OF AB6825'EAST END OF A HIGHWAY CULVERT--AND 137.0 FT (41.8 M) NORTHWEST OF A AB6825'14-INCH PINE--WITH A REFERENCE TAG AND WILDLIFE SIGN. AB6825 AB6825 STATION RECOVERY (1995) AB6825 AB6825'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1995 (JGG) AB6825'STATION IS LOCATED ABOUT 14.0 MI (22.5 KM) EAST-NORTHEAST OF AB6825'ROCKINGHAM IN HOFFMAN. ALONG SR 1474 (SCHOOL DRIVE) FOR 0.25 MI (0.40 AB6825'KM) SOUTHEAST FROM US 1 AT SR 1601 (BLUES BRIDGE ROAD), ON CENTERLINE AB6825'PROLONGATION OF THE SR. MARK IS LEVEL WITH THE ROAD AND FLUSH WITH THE AB6825'GROUND. LOCATED 49.4 FT (15.1 M) WEST OF THE CENTERLINE OF THE ROAD, AB6825'74.2 FT (22.6 M) WEST OF A METAL ROAD SIGN, 89.4 FT (27.2 M) SOUTH OF AB6825'WEST END OF A HIGHWAY CULVERT, 113.5 FT (34.6 M) SOUTHWEST OF EAST END AB6825'OF A HIGHWAY CULVERT--AND 137.0 FT (41.8 M) NORTHWEST OF A 14-INCH AB6825'PINE--WITH A REFERENCE TAG AND WILDLIFE SIGN. AB6825 AB6825 STATION RECOVERY (1995) AB6825 AB6825'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1995 (JGG) AB6825'RECOVERED AS DESCRIBED. AB6825 AB6825 STATION RECOVERY (1996) AB6825 AB6825'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1996 (JGG) AB6825'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 EB3103 *********************************************************************** EB3103 PACS - This is a Primary Airport Control Station. EB3103 DESIGNATION - ROCKPORT EB3103 PID - EB3103 EB3103 STATE/COUNTY- NC/RICHMOND EB3103 USGS QUAD - ROCKINGHAM (1982) EB3103 EB3103 *CURRENT SURVEY CONTROL EB3103 ___________________________________________________________________ EB3103* NAD 83(2001)- 34 53 35.23565(N) 079 45 37.16379(W) ADJUSTED EB3103* NAVD 88 - 106.02 (meters) 347.8 (feet) GPS OBS EB3103 ___________________________________________________________________ EB3103 X - 931,011.594 (meters) COMP EB3103 Y - -5,153,864.525 (meters) COMP EB3103 Z - 3,628,190.544 (meters) COMP EB3103 LAPLACE CORR- -4.71 (seconds) DEFLEC99 EB3103 ELLIP HEIGHT- 74.73 (meters) (02/10/03) GPS OBS EB3103 GEOID HEIGHT- -31.32 (meters) GEOID99 EB3103 EB3103 HORZ ORDER - B EB3103 ELLP ORDER - FOURTH CLASS II EB3103 EB3103.This mark is at Rockingham-Hamlet Airport (45J) EB3103 EB3103.The North Carolina/South Carolina HARNS have been completed but, EB3103.due to contractual restrictions, coordinates for these stations EB3103.will NOT be published in the near future. In the interim, the EB3103.published coordinates in North and South Carolina will not be EB3103.consistent with the Continuously Operating Reference Stations EB3103.(CORS). The HARN coordinates for these stations are available EB3103.upon request. Contact Gary Thompson(919-733-3836), or Lewis EB3103.Lapine(803-896-7700). EB3103. EB3103.In addition, the published North and South Carolina positions EB3103.(NAD 83 (1986)) are NOT consistent with those determined in EB3103.adjacent state readjustments. The discontinuity between stations EB3103.located in North or South Carolina and those in adjacent states EB3103.which have been adjusted to the HARN may be as much as 5 EB3103.decimeters. This will result in a significant loss of accuracy EB3103.over lines crossing such state borders. EB3103 EB3103 EB3103.The horizontal coordinates were established by GPS observations EB3103.and adjusted by the National Geodetic Survey in February 2003. EB3103.This is a SPECIAL STATUS position. See SPECIAL STATUS under the EB3103.DATUM ITEM on the data sheet items page. EB3103 EB3103.The orthometric height was determined by GPS observations and a EB3103.high-resolution geoid model. EB3103 EB3103.GPS derived orthometric heights for airport stations designated as EB3103.PACS or SACS are published to 2 decimal places. This maintains EB3103.centimeter relative accuracy between the PACS and SACS. It does EB3103.not indicate centimeter accuracy relative to other marks which are EB3103.part of the NAVD 88 network. EB3103 EB3103.The X, Y, and Z were computed from the position and the ellipsoidal ht. EB3103 EB3103.The Laplace correction was computed from DEFLEC99 derived deflections. EB3103 EB3103.The ellipsoidal height was determined by GPS observations EB3103.and is referenced to NAD 83. EB3103 EB3103.The geoid height was determined by GEOID99. EB3103 EB3103; North East Units Scale Converg. EB3103;SPC NC - 127,072.987 540,110.751 MT 0.99989206 -0 26 19.8 EB3103;UTM 17 - 3,861,891.751 613,272.526 MT 0.99975814 +0 42 33.2 EB3103 EB3103: Primary Azimuth Mark Grid Az EB3103:SPC NC - ROCKPORT AZ MK 125 44 03.5 EB3103:UTM 17 - ROCKPORT AZ MK 124 35 10.5 EB3103 EB3103|---------------------------------------------------------------------| EB3103| PID Reference Object Distance Geod. Az | EB3103| dddmmss.s | EB3103| EB3106 ROCKPORT AZ MK APPROX. 1.0 KM 1251743.7 | EB3103|---------------------------------------------------------------------| EB3103 EB3103 SUPERSEDED SURVEY CONTROL EB3103 EB3103 NAD 83(1995)- 34 53 35.23593(N) 079 45 37.16342(W) AD( ) B EB3103 ELLIP HT - 74.72 (m) (12/23/99) GP( ) 4 2 EB3103 NAD 83(1986)- 34 53 35.24311(N) 079 45 37.16689(W) AD( ) 1 EB3103 NAD 83(1986)- 34 53 35.23715(N) 079 45 37.17182(W) AD( ) 3 EB3103 NAD 27 - 34 53 34.67835(N) 079 45 37.98141(W) AD( ) 3 EB3103 NGVD 29 - 106.3 (m) 349. (f) GPS OBS EB3103 EB3103.Superseded values are not recommended for survey control. EB3103.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. EB3103.See file dsdata.txt to determine how the superseded data were derived. EB3103 EB3103_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPU1327361892(NAD 83) EB3103_MARKER: DH = HORIZONTAL CONTROL DISK EB3103_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT EB3103_STAMPING: ROCKPORT 1986 EB3103_MARK LOGO: NGS EB3103_MAGNETIC: T = STEEL SPIKE ADJACENT TO MONUMENT EB3103_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO EB3103+STABILITY: SURFACE MOTION EB3103_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR EB3103+SATELLITE: SATELLITE OBSERVATIONS - November 13, 1996 EB3103 EB3103 HISTORY - Date Condition Report By EB3103 HISTORY - 1986 MONUMENTED NGS EB3103 HISTORY - 19930728 GOOD NCGS EB3103 HISTORY - 19961113 GOOD NCGS EB3103 EB3103 STATION DESCRIPTION EB3103 EB3103'DESCRIBED BY NATIONAL GEODETIC SURVEY 1986 (MRM) EB3103'THE STATION IS LOCATED ABOUT 4.8 KM (3.0 MI) EB3103'SOUTH OF ROCKINGHAM, ON THE ROCKINGHAM-HAMLET AIRPORT, NEAR THE EB3103'WINDSOCK. EB3103'OWNERSHIP--PUBLIC/RICHMOND COUNTY, MANAGER - DOYLE HAGLER, BOX EB3103'1354, ROCKINGHAM NC 28379, PHONE 919-997-5071. EB3103' EB3103'TO REACH THE STATION FROM THE JUNCTION OFU.S. HIGHWAYS 1 AND 220 ON EB3103'THE SOUTHWEST SIDE OF ROCKINGHAM, GO NORTHWEST FOR EB3103'0.5 KM (0.3 MI) ON HIGHWAY 1 TO A CROSS STREET. TURN RIGHT AND GO EB3103'4.3 KM (2.65 MI) ON CAROLINE ST/AIRPORT ROAD TO A PAVED ROAD RIGHT EB3103'(SMALL AIRPORT SIGN ON THE LEFT), ABOUT 0.2 KM (0.15 MI) AFTER EB3103'PASSING A LARGE INDUSTRIAL COMPLEX ON THE RIGHT. EB3103'TURN RIGHT AND GO SOUTHWEST FOR 0.1 KM (0.05 MI) ON THE PAVED ROAD EB3103'TO A SHARP TURN LEFT. EB3103'TURN LEFT AND GO SOUTHEAST FOR 0.2 KM (0.1 MI) ON THE PAVED ROAD TO EB3103'A PARKING AREA, TERMINAL ON THE RIGHT AND A CHAIN LINK FENCE GATE. EB3103'PASS THRU GATE BETWEEN TWO METAL HANGARS, TURN RIGHT AND GO EB3103'SOWTHWEST ACROSS APRON, CONTINUE ON RAMP TO RUNWAY FOR 0.4 KM (0.25 EB3103'MI). CROSS RUNWAY, TURN RIGHT AND GO 0.2 KM (0.1 MI) ALONG THE EB3103'RUNWAY TO THE WINDSOCK AND STATION. EB3103' EB3103'THE STATION IS A STANDARD NGS DISK EB3103'STAMPED---ROCKPORT 1986---, EB3103'SET INTO THE TOP OF A ROUND CONCRETE MONUMENT EB3103'30 CM IN DIAMETER RECESSED 2 CM BELOW GROUND. LOCATED EB3103'58.61 METERS (192.3 FT) SOUTHWEST FROM THE APPROXIMATE CENTER OF EB3103'THE RUNWAY, EB3103'18.29 METERS (60.0 FT) EAST-NORTHEAST FROM A TWO FOOT DROPOFF AND EB3103'17.16 METERS (56.3 FT) SOUTHEAST FROM THE WINDSOCK. EB3103'THE UNDERGROUND MARK IS A STANDARD NGS DISK EB3103'STAMPED---ROCKPORT 1986---, EB3103'SET INTO AN IRREGULAR MASS OF CONCRETE 1.0 METERS BELOW THE SURFACE. EB3103' EB3103'AZIMUTH MARK NO. 1 IS A STANDARD NGS DISK EB3103'STAMPED---ROCKPORT 1986---, EB3103'SET INTO THE TOP OF A ROUND CONCRETE MONUMENT EB3103'30 CM IN DIAMETER FLUSH WITH GROUND. LOCATED EB3103'68.73 METERS (225.5 FT) SOUTHEAST FROM A VASI LIGHT, EB3103'37.34 METERS (122.5 FT) SOUTHWEST FROM THE APPROXIMATE CENTER OF EB3103'THE RUNWAY, EB3103'32.31 METERS (106.0 FT) NORTHEAST FROM A CONCRETE FILLED ROUND EB3103'CORRUGATED PIPE 45 CM IN DIAMETER PROJECTING 1.07 METERS ABOVE EB3103'GROUND AND EB3103'17.47 METERS (57.3 FT) WEST FROM THE SOUTHWEST 1 0F 4 IN LINE EB3103'MARKER LIGHTS AT END OF RUNWAY TOUCH DOWN MARK. EB3103'TO REACH THE AZIMUTH FROM THE STATION, EB3103'GO SOUTHEAST FOR 1.0 KM (0.6 MI) ALONG THE RUNWAY TO THE TOUCH DOWN EB3103'ZONE FOR RUNWAY 31 AND THE MARK. EB3103'THE UNDERGROUND MARK IS A STANDARD NGS DISK EB3103'STAMPED---ROCKPORT 1986---, EB3103'SET INTO AN IRREGULAR MASS OF CONCRETE 1.0 METERS BELOW THE SURFACE. EB3103' EB3103'NO REFERENCE MARKS WERE SET AT THIS TIME. EB3103' EB3103'TI 4100 GPS SURVEY OF FAA AIRPORT SITES IN NORTH CAROLINA-FEBRUARY, EB3103'MARCH 1986. EB3103' EB3103'THIS STATION SUITABLE FOR GPS SURVEYS. EB3103' EB3103'DESCRIBED BY K.R. WALLACE. EB3103 EB3103 STATION RECOVERY (1993) EB3103 EB3103'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1993 (LWA) EB3103'RECOVERED AS DESCRIBED. EB3103 EB3103 STATION RECOVERY (1996) EB3103 EB3103'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1996 (PAC) EB3103'RECOVERED AS DESCRIBED. THIS STATION IS DESIGNATED AS THE PRIMARY EB3103'AIRPORT CONTROL STATION. 1 National Geodetic Survey, Retrieval Date = MARCH 4, 2003 EB3106 *********************************************************************** EB3106 SACS - This is a Secondary Airport Control Station. EB3106 DESIGNATION - ROCKPORT AZ MK EB3106 PID - EB3106 EB3106 STATE/COUNTY- NC/RICHMOND EB3106 USGS QUAD - ROCKINGHAM (1982) EB3106 EB3106 *CURRENT SURVEY CONTROL EB3106 ___________________________________________________________________ EB3106* NAD 83(2001)- 34 53 16.80784(N) 079 45 05.57474(W) ADJUSTED EB3106* NAVD 88 - 107.87 (meters) 353.9 (feet) GPS OBS EB3106 ___________________________________________________________________ EB3106 X - 931,858.947 (meters) COMP EB3106 Y - -5,154,043.004 (meters) COMP EB3106 Z - 3,627,725.781 (meters) COMP EB3106 LAPLACE CORR- -4.75 (seconds) DEFLEC99 EB3106 ELLIP HEIGHT- 76.55 (meters) (02/10/03) GPS OBS EB3106 GEOID HEIGHT- -31.36 (meters) GEOID99 EB3106 EB3106 HORZ ORDER - FIRST EB3106 ELLP ORDER - FOURTH CLASS II EB3106 EB3106.This mark is at Rockingham-Hamlet Airport (45J) EB3106 EB3106.The North Carolina/South Carolina HARNS have been completed but, EB3106.due to contractual restrictions, coordinates for these stations EB3106.will NOT be published in the near future. In the interim, the EB3106.published coordinates in North and South Carolina will not be EB3106.consistent with the Continuously Operating Reference Stations EB3106.(CORS). The HARN coordinates for these stations are available EB3106.upon request. Contact Gary Thompson(919-733-3836), or Lewis EB3106.Lapine(803-896-7700). EB3106. EB3106.In addition, the published North and South Carolina positions EB3106.(NAD 83 (1986)) are NOT consistent with those determined in EB3106.adjacent state readjustments. The discontinuity between stations EB3106.located in North or South Carolina and those in adjacent states EB3106.which have been adjusted to the HARN may be as much as 5 EB3106.decimeters. This will result in a significant loss of accuracy EB3106.over lines crossing such state borders. EB3106 EB3106 EB3106.The horizontal coordinates were established by GPS observations EB3106.and adjusted by the National Geodetic Survey in February 2003. EB3106.This is a SPECIAL STATUS position. See SPECIAL STATUS under the EB3106.DATUM ITEM on the data sheet items page. EB3106 EB3106.The orthometric height was determined by GPS observations and a EB3106.high-resolution geoid model. EB3106 EB3106.GPS derived orthometric heights for airport stations designated as EB3106.PACS or SACS are published to 2 decimal places. This maintains EB3106.centimeter relative accuracy between the PACS and SACS. It does EB3106.not indicate centimeter accuracy relative to other marks which are EB3106.part of the NAVD 88 network. EB3106 EB3106.The X, Y, and Z were computed from the position and the ellipsoidal ht. EB3106 EB3106.The Laplace correction was computed from DEFLEC99 derived deflections. EB3106 EB3106.The ellipsoidal height was determined by GPS observations EB3106.and is referenced to NAD 83. EB3106 EB3106.The geoid height was determined by GEOID99. EB3106 EB3106; North East Units Scale Converg. EB3106;SPC NC - 126,499.081 540,908.413 MT 0.99989262 -0 26 01.6 EB3106;UTM 17 - 3,861,334.016 614,081.418 MT 0.99976040 +0 42 51.0 EB3106 EB3106: Primary Azimuth Mark Grid Az EB3106:SPC NC - ROCKPORT 305 44 03.3 EB3106:UTM 17 - ROCKPORT 304 35 10.7 EB3106 EB3106|---------------------------------------------------------------------| EB3106| PID Reference Object Distance Geod. Az | EB3106| dddmmss.s | EB3106| EB3103 ROCKPORT APPROX. 1.0 KM 3051801.7 | EB3106|---------------------------------------------------------------------| EB3106 EB3106 SUPERSEDED SURVEY CONTROL EB3106 EB3106 NAD 83(1995)- 34 53 16.80812(N) 079 45 05.57438(W) AD( ) 1 EB3106 ELLIP HT - 76.54 (m) (12/23/99) GP( ) 4 2 EB3106 NAD 83(1986)- 34 53 16.81543(N) 079 45 05.57782(W) AD( ) 1 EB3106 NAD 83(1986)- 34 53 16.80839(N) 079 45 05.58223(W) AD( ) 3 EB3106 NAD 27 - 34 53 16.24894(N) 079 45 06.39185(W) AD( ) 3 EB3106 NGVD 29 - 108.2 (m) 355. (f) GPS OBS EB3106 EB3106.Superseded values are not recommended for survey control. EB3106.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. EB3106.See file dsdata.txt to determine how the superseded data were derived. EB3106 EB3106_U.S. NATIONAL GRID SPATIAL ADDRESS: 17SPU1408161334(NAD 83) EB3106_MARKER: DZ = AZIMUTH MARK DISK EB3106_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT EB3106_STAMPING: ROCKPORT 1986 EB3106_MARK LOGO: NGS EB3106_MAGNETIC: T = STEEL SPIKE ADJACENT TO MONUMENT EB3106_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO EB3106+STABILITY: SURFACE MOTION EB3106_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR EB3106+SATELLITE: SATELLITE OBSERVATIONS - November 13, 1996 EB3106 EB3106 HISTORY - Date Condition Report By EB3106 HISTORY - 1986 MONUMENTED NGS EB3106 HISTORY - 19930728 GOOD NCGS EB3106 HISTORY - 19961113 GOOD NCGS EB3106 EB3106 STATION DESCRIPTION EB3106 EB3106'DESCRIBED BY NATIONAL GEODETIC SURVEY 1986 (MRM) EB3106'THE STATION IS LOCATED ABOUT 4.8 KM (3.0 MI) EB3106'SOUTH OF ROCKINGHAM AND ON THE ROCKINGHAM-HAMLET AIRPORT. EB3106'OWNERSHIP--PUBLIC/RICHMOND COUNTY, MANAGER - DOYLE HAIGLER, BOX EB3106'1354, ROCKINGHAM NC 28379, PHONE 919-997-5071. EB3106' EB3106'TO REACH THE STATION FROM THE JUNCTION OF U.S. HIGHWAYS 1 AND 220, EB3106'ON THE SOUTHWEST SIDE OF ROCKINGHAM, GO NORTH FOR EB3106'0.5 KM (0.3 MI) ON HIGHWAY 1 TO A CROSS STREET. TURN RIGHT AND GO EB3106'4.3 KM (2.65 MI) ON CAROLINE ST/AIRPORT ROAD TO A PAVED ROAD RIGHT EB3106'(SMALL AIRPORT SIGN ON THE LEFT), ABOUT 0.2 KM (0.15 MI) AFTER EB3106'PASSING A LARGE INDUSTRIAL COMPLEX ON THE RIGHT. EB3106'TURN RIGHT AND GO SOUTHWEST FOR 0.1 KM (0.05 MI) ON THE PAVED ROAD EB3106'TO A SHARP TURN LEFT. EB3106'TURN LEFT AND GO SOUTHEAST FOR 0.2 KM (0.1 MI) ON THE PAVED ROAD TO EB3106'A PARKING AREA, TERMINAL ON THE RIGHT AND A CHAIN LINK FENCE GATE. EB3106'PASS THRU GATE BETWEEN TWO METAL HANGARS, TURN RIGHT AND GO EB3106'SOUTHWEST ACROSS APRON , CONTINUE ON RAMP FOR 0.4 KM (0.25 MI) TO EB3106'THE RUNWAY. CROSS RUNWAY, TURN LEFT AND GO SOUTHEAST FOR 0.8 KM EB3106'(0.5 MI) ALONG THE RUNWAY TO THE TOUCHDOWN ZONE FOR RUNWAY 31 AND EB3106'THE STATION. EB3106' EB3106'THE STATION IS A STANDARD NGS DISK EB3106'STAMPED---ROCKPORT 1986---, EB3106'SET INTO THE TOP OF A ROUND CONCRETE MONUMENT EB3106'30 CM IN DIAMETER FLUSH WITH GROUND. LOCATED EB3106'68.73 METERS (225.5 FT) SOUTHEAST FROM A VASI LIGHT, EB3106'37.34 METERS (122.5 FT) SOUTHWEST FROM THE APPROXIMATE CENTER OF EB3106'THE RUNWAY, EB3106'32.31 METERS (106.0 FT) NORTHEAST FROM A CONCRETE FILLED ROUND EB3106'CORRUGATED PIPE 45 CM IN DIAMETER PROJECTING 1.07 METERS ABOVE EB3106'GROUND AND EB3106'17.47 METERS (57.3 FT) WEST FROM THE SOUTHWEST ONE OF FOUR IN LINE EB3106'MARKER LIGHTS AT END OF RUNWAY TOUCH DOWN MARK. EB3106'THE UNDERGROUND MARK IS A STANDARD NGS DISK EB3106'STAMPED---ROCKPORT 1986---, EB3106'SET INTO AN IRREGULAR MASS OF CONCRETE 1.0 METERS BELOW THE SURFACE. EB3106' EB3106'NO REFERENCE MARKS WERE SET AT THIS TIME. EB3106' EB3106'TI 4100 GPS SURVEY OF FAA AIRPORT SITES IN NORTH CAROLINA-FEBRUARY, EB3106'MARCH 1986. EB3106' EB3106'THIS STATION SUITABLE FOR GPS SURVEYS. EB3106' EB3106'DESCRIBED BY K.R. WALLACE. EB3106 EB3106 STATION RECOVERY (1993) EB3106 EB3106'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1993 (LWA) EB3106'RECOVERED AS DESCRIBED. EB3106 EB3106 STATION RECOVERY (1996) EB3106 EB3106'RECOVERY NOTE BY NORTH CAROLINA GEODETIC SURVEY 1996 (PAC) EB3106'RECOVERED AS DESCRIBED. THIS STATION IS DESIGNATED AS A SECONDARY EB3106'AIRPORT CONTROL STATION.