1 National Geodetic Survey, Retrieval Date = AUGUST 1, 2005 JV4448 *********************************************************************** JV4448 DESIGNATION - 17078 WSSC 1969 JV4448 PID - JV4448 JV4448 STATE/COUNTY- MD/MONTGOMERY JV4448 USGS QUAD - GAITHERSBURG (1979) JV4448 JV4448 *CURRENT SURVEY CONTROL JV4448 ___________________________________________________________________ JV4448* NAD 83(1991)- 39 13 56.90269(N) 077 14 14.02391(W) ADJUSTED JV4448* NAVD 88 - 190.5 (meters) 625. (feet) VERTCON JV4448 ___________________________________________________________________ JV4448 LAPLACE CORR- 2.66 (seconds) DEFLEC99 JV4448 GEOID HEIGHT- -31.82 (meters) GEOID03 JV4448 JV4448 HORZ ORDER - SECOND JV4448 JV4448.The horizontal coordinates were established by classical geodetic methods JV4448.and adjusted by the National Geodetic Survey in November 1994. JV4448 JV4448.The NAVD 88 height was computed by applying the VERTCON shift value to JV4448.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV4448 JV4448.The Laplace correction was computed from DEFLEC99 derived deflections. JV4448 JV4448.The geoid height was determined by GEOID03. JV4448 JV4448; North East Units Scale Factor Converg. JV4448;SPC MD - 173,840.386 379,517.788 MT 0.99996918 -0 08 56.0 JV4448;SPC MD - 570,341.33 1,245,134.61 sFT 0.99996918 -0 08 56.0 JV4448;UTM 18 - 4,344,959.944 306,900.038 MT 1.00005913 -1 24 55.5 JV4448 JV4448! - Elev Factor x Scale Factor = Combined Factor JV4448!SPC MD - 0.99997510 x 0.99996918 = 0.99994429 JV4448!UTM 18 - 0.99997510 x 1.00005913 = 1.00003423 JV4448 JV4448: Primary Azimuth Mark Grid Az JV4448:SPC MD - 17077 WSSC 1969 173 14 04.4 JV4448:UTM 18 - 17077 WSSC 1969 174 30 03.9 JV4448 JV4448|---------------------------------------------------------------------| JV4448| PID Reference Object Distance Geod. Az | JV4448| dddmmss.s | JV4448| JV4447 17077 WSSC 1969 401.771 METERS 1730508.4 | JV4448|---------------------------------------------------------------------| JV4448 JV4448 SUPERSEDED SURVEY CONTROL JV4448 JV4448 NAD 83(1991)- 39 13 56.90207(N) 077 14 14.02388(W) AD( ) 2 JV4448 NAD 83(1986)- 39 13 56.90218(N) 077 14 14.03429(W) AD( ) 2 JV4448 NAD 27 - 39 13 56.52135(N) 077 14 15.09077(W) AD( ) 2 JV4448 NGVD 29 (07/19/86) 190.7 (m) 626. (f) VERT ANG JV4448 JV4448.Superseded values are not recommended for survey control. JV4448.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4448.See file dsdata.txt to determine how the superseded data were derived. JV4448 JV4448_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0690044960(NAD 83) JV4448_MARKER: I = METAL ROD JV4448_SETTING: 0 = UNSPECIFIED SETTING JV4448_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV4448 JV4448 HISTORY - Date Condition Report By JV4448 HISTORY - 1969 MONUMENTED WSSC JV4448 HISTORY - 20050723 MARK NOT FOUND GEOCAC JV4448 JV4448 STATION DESCRIPTION JV4448 JV4448'DESCRIBED BY WASH SUBURB SAN COMM 1969 JV4448'THE STATION IS ABOUT 1-1/2 MILES NORTH OF BRINK AND 1-1/2 MILES JV4448'SOUTH OF CEDAR GROVE. JV4448' JV4448'TO REACH THE STATION FROM THE INTERSECTION OF ROUTE 27 AND JV4448'JOHNSON ROAD, GO SOUTHEAST ON ROUTE 27 FOR .1 MILES TO THE JV4448'STATION ON THE LEFT. JV4448' JV4448'THE STATION MARK IS A CONCRETE MONUMENT WITH AN IRON ROD JV4448'CENTER AND IS FLUSH WITH THE SURFACE. IT IS ON THE TOP OF A CUT JV4448'BANK AND IS 26.00 FEET SOUTHWEST OF A NAIL IN THE TOP OF A FENCE JV4448'POST, 38.00 FEET NORTH OF POLE NO. 2779, 78.81 FEET SOUTHEAST JV4448'OF A NAIL IN THE TOP OF A FENCE POST, AND 81.85 FEET NORTHEAST JV4448'OF A NAIL IN THE TOP OF A FENCE POST. JV4448 JV4448 STATION RECOVERY (2005) JV4448 JV4448'RECOVERY NOTE BY GEOCACHING 2005 (APC) JV4448'DID NOT OBSERVE THE FENCE POSTS CITED IN THE 1969 DESCRIPTION. MARK JV4448'MAY HAVE BEEN LOST IN LANDSCAPING AND GRADING FOR CHURCH. 1 National Geodetic Survey, Retrieval Date = AUGUST 1, 2005 AA5776 *********************************************************************** AA5776 DESIGNATION - BRINK AA5776 PID - AA5776 AA5776 STATE/COUNTY- MD/MONTGOMERY AA5776 USGS QUAD - GAITHERSBURG (1979) AA5776 AA5776 *CURRENT SURVEY CONTROL AA5776 ___________________________________________________________________ AA5776* NAD 83(1991)- 39 12 35.78943(N) 077 14 24.60211(W) ADJUSTED AA5776* NAVD 88 - 190.6 (meters) 625. (feet) GPS OBS AA5776 ___________________________________________________________________ AA5776 X - 1,093,004.645 (meters) COMP AA5776 Y - -4,826,537.349 (meters) COMP AA5776 Z - 4,010,503.564 (meters) COMP AA5776 LAPLACE CORR- 2.34 (seconds) DEFLEC99 AA5776 ELLIP HEIGHT- 158.78 (meters) (08/30/02) GPS OBS AA5776 GEOID HEIGHT- -31.80 (meters) GEOID03 AA5776 AA5776 HORZ ORDER - FIRST AA5776 ELLP ORDER - FOURTH CLASS II AA5776 AA5776.The horizontal coordinates were established by GPS observations AA5776.and adjusted by the National Geodetic Survey in June 1995. AA5776 AA5776.The orthometric height was determined by GPS observations and a AA5776.high-resolution geoid model. AA5776 AA5776.The X, Y, and Z were computed from the position and the ellipsoidal ht. AA5776 AA5776.The Laplace correction was computed from DEFLEC99 derived deflections. AA5776 AA5776.The ellipsoidal height was determined by GPS observations AA5776.and is referenced to NAD 83. AA5776 AA5776.The geoid height was determined by GEOID03. AA5776 AA5776; North East Units Scale Factor Converg. AA5776;SPC MD - 171,339.702 379,257.509 MT 0.99996681 -0 09 02.7 AA5776;SPC MD - 562,137.01 1,244,280.68 sFT 0.99996681 -0 09 02.7 AA5776;UTM 18 - 4,342,465.393 306,584.535 MT 1.00006064 -1 24 59.7 AA5776 AA5776! - Elev Factor x Scale Factor = Combined Factor AA5776!SPC MD - 0.99997509 x 0.99996681 = 0.99994190 AA5776!UTM 18 - 0.99997509 x 1.00006064 = 1.00003573 AA5776 AA5776 SUPERSEDED SURVEY CONTROL AA5776 AA5776 ELLIP H (06/13/95) 158.73 (m) GP( ) 4 2 AA5776 AA5776.Superseded values are not recommended for survey control. AA5776.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AA5776.See file dsdata.txt to determine how the superseded data were derived. AA5776 AA5776_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0658542465(NAD 83) AA5776_MARKER: DD = SURVEY DISK AA5776_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AA5776_STAMPING: BRINK 1961 AA5776_MARK LOGO: NONE AA5776_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT AA5776_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AA5776+STABILITY: SURFACE MOTION AA5776_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AA5776+SATELLITE: SATELLITE OBSERVATIONS - April 05, 2005 AA5776 AA5776 HISTORY - Date Condition Report By AA5776 HISTORY - 1961 MONUMENTED RBNF AA5776 HISTORY - 20040322 GOOD URS AA5776 HISTORY - 20040324 POOR URS AA5776 HISTORY - 20050405 GOOD USPSQD AA5776 HISTORY - 20050723 GOOD GEOCAC AA5776 AA5776 STATION DESCRIPTION AA5776 AA5776'DESCRIBED BY RESEARCHED BUT NOT FOUND 1961 AA5776'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY AA5776'6.0 MI (9.7 KM) NORTH OF THE CITY OF GAITHERSBURG. TO REACH THE AA5776'STATION FROM THE JUNCTION OF RIDGE ROAD (S.R. 27) AND FREDERICK ROAD AA5776'(S.R. 355) GO NORTH 0.6 MI (1.0 KM) ALONG RIDGE ROAD TO THE STATION ON AA5776'THE LEFT AT THE INTERSECTION WITH BRINK ROAD. AA5776' AA5776'THE STATION IS A DISK SET IN THE TOP OF A CONCRETE MONUMENT WHICH IS 2 AA5776'INCHES BELOW GROUND LEVEL, AND STAMPED "BRINK 1961". THE DISK IS AA5776'LOCATED 16.6 FT (5.1 M) NORTHWEST OF THE EDGE OF PAVEMENT, 43.8 FT AA5776'(13.4 M) SOUTH-SOUTHWEST OF THE TRAFFIC LIGHT SUPPORT IN THE SOUTHWEST AA5776'CORNER OF THE INTERSECTION, AND 2.3 FT (0.7 M) EAST-SOUTHEAST OF A AA5776'CARSONITE WITNESS POST. AA5776 AA5776 STATION RECOVERY (2004) AA5776 AA5776'RECOVERY NOTE BY URS COMPANY 2004 AA5776'RECOVERED IN GOOD CONDITION. AA5776 AA5776 STATION RECOVERY (2004) AA5776 AA5776'RECOVERY NOTE BY URS COMPANY 2004 AA5776'MARK RECOVERED IN POOR CONDITION. AA5776 AA5776 STATION RECOVERY (2005) AA5776 AA5776'RECOVERY NOTE BY US POWER SQUADRON 2005 (FM) AA5776'RECOVERED IN GOOD CONDITION. AA5776 AA5776 STATION RECOVERY (2005) AA5776 AA5776'RECOVERY NOTE BY GEOCACHING 2005 (APC) AA5776'STATION FOUND AS DESCRIBED AND APPROXIMATELY 32 FEET SOUTH-SOUTHEAST AA5776'OF A SMALL CONCRETE PAD APPARENTLY BEING PREPARED FOR A TRAFFIC LIGHT AA5776'POLE OR CONTROL BOX. WITNESS POST NOT PROPERLY INSTALLED AND LASHED TO AA5776'A WOODEN STAKE. 1 National Geodetic Survey, Retrieval Date = AUGUST 1, 2005 JV2202 *********************************************************************** JV2202 DESIGNATION - CLOPPER BRIDGE BORR JV2202 PID - JV2202 JV2202 STATE/COUNTY- MD/MONTGOMERY JV2202 USGS QUAD - GAITHERSBURG (1979) JV2202 JV2202 *CURRENT SURVEY CONTROL JV2202 ___________________________________________________________________ JV2202* NAD 83(1986)- 39 09 16. (N) 077 14 18. (W) SCALED JV2202* NAVD 88 - 119.71 (+/-2cm) 392.7 (feet) VERTCON JV2202 ___________________________________________________________________ JV2202 GEOID HEIGHT- -31.75 (meters) GEOID03 JV2202 JV2202 VERT ORDER - ? (See Below) JV2202 JV2202.The horizontal coordinates were scaled from a topographic map and have JV2202.an estimated accuracy of +/- 6 seconds. JV2202 JV2202.The NAVD 88 height was computed by applying the VERTCON shift value to JV2202.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2202.The vertical order pertains to the NGVD 29 superseded value. JV2202 JV2202.The geoid height was determined by GEOID03. JV2202 JV2202; North East Units Estimated Accuracy JV2202;SPC MD - 165,180. 379,400. MT (+/- 180 meters Scaled) JV2202 JV2202 SUPERSEDED SURVEY CONTROL JV2202 JV2202 NGVD 29 (??/??/??) 119.925 (m) 393.45 (f) ADJUSTED ? JV2202 JV2202.Superseded values are not recommended for survey control. JV2202.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2202.See file dsdata.txt to determine how the superseded data were derived. JV2202 JV2202_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ065363(NAD 83) JV2202_MARKER: Q = CHISELED SQUARE JV2202_SETTING: 36 = SET IN A MASSIVE STRUCTURE JV2202_SP_SET: BRIDGE JV2202_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV2202 JV2202 HISTORY - Date Condition Report By JV2202 HISTORY - UNK MONUMENTED BORR JV2202 HISTORY - 1938 GOOD CGS JV2202 HISTORY - 20031102 MARK NOT FOUND USPSQD JV2202 HISTORY - 20050718 MARK NOT FOUND USPSQD JV2202 JV2202 STATION DESCRIPTION JV2202 JV2202'DESCRIBED BY COAST AND GEODETIC SURVEY 1938 JV2202'AT CLOPPER. JV2202'AT COPPER, MONTGOMERY COUNTY, ON THE BALTIMORE AND OHIO RAILROAD, JV2202'200 FEET SOUTHEAST OF THE STATION, 120 FEET SOUTHEAST OF THE JV2202'PASSENGER PLATFORM, ON THE SOUTHEAST CORNER OF BRIDGE 25-A, JV2202'AND 2.5 FEET SOUTHEAST OF BENCH MARK N 34 DESCRIBED ABOVE. JV2202'A CHISELED SQUARE. JV2202 JV2202 STATION RECOVERY (2003) JV2202 JV2202'RECOVERY NOTE BY US POWER SQUADRON 2003 (KPM) JV2202'MARK NOT FOUND. JV2202 JV2202 STATION RECOVERY (2005) JV2202 JV2202'RECOVERY NOTE BY US POWER SQUADRON 2005 (FM) JV2202'MARK NOT FOUND. 1 National Geodetic Survey, Retrieval Date = AUGUST 1, 2005 JV7074 *********************************************************************** JV7074 CBN - This is a Cooperative Base Network Control Station. JV7074 DESIGNATION - KINEMATIC JV7074 PID - JV7074 JV7074 STATE/COUNTY- MD/MONTGOMERY JV7074 USGS QUAD - DAMASCUS (1993) JV7074 JV7074 *CURRENT SURVEY CONTROL JV7074 ___________________________________________________________________ JV7074* NAD 83(1991)- 39 15 54.13635(N) 077 13 07.05038(W) ADJUSTED JV7074* NAVD 88 - 229.1 (meters) 752. (feet) GPS OBS JV7074 ___________________________________________________________________ JV7074 X - 1,093,969.882 (meters) COMP JV7074 Y - -4,822,381.890 (meters) COMP JV7074 Z - 4,015,265.768 (meters) COMP JV7074 LAPLACE CORR- 2.75 (seconds) DEFLEC99 JV7074 ELLIP HEIGHT- 197.39 (meters) (08/09/02) GPS OBS JV7074 GEOID HEIGHT- -31.83 (meters) GEOID03 JV7074 JV7074 HORZ ORDER - B JV7074 ELLP ORDER - FOURTH CLASS II JV7074 JV7074.The horizontal coordinates were established by GPS observations JV7074.and adjusted by the National Geodetic Survey in October 1993. JV7074 JV7074.The orthometric height was determined by GPS observations and a JV7074.high-resolution geoid model. JV7074 JV7074.Photographs are available for this station. JV7074 JV7074.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7074 JV7074.The Laplace correction was computed from DEFLEC99 derived deflections. JV7074 JV7074.The ellipsoidal height was determined by GPS observations JV7074.and is referenced to NAD 83. JV7074 JV7074.The geoid height was determined by GEOID03. JV7074 JV7074; North East Units Scale Factor Converg. JV7074;SPC MD - 177,451.623 381,132.681 MT 0.99997287 -0 08 14.0 JV7074;SPC MD - 582,189.20 1,250,432.80 sFT 0.99997287 -0 08 14.0 JV7074;UTM 18 - 4,348,534.893 308,594.527 MT 1.00005111 -1 24 16.6 JV7074 JV7074! - Elev Factor x Scale Factor = Combined Factor JV7074!SPC MD - 0.99996903 x 0.99997287 = 0.99994190 JV7074!UTM 18 - 0.99996903 x 1.00005111 = 1.00002014 JV7074 JV7074 SUPERSEDED SURVEY CONTROL JV7074 JV7074 ELLIP H (10/21/93) 197.34 (m) GP( ) 2 2 JV7074 JV7074.Superseded values are not recommended for survey control. JV7074.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7074.See file dsdata.txt to determine how the superseded data were derived. JV7074 JV7074_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0859548535(NAD 83) JV7074_MARKER: I = METAL ROD JV7074_SETTING: 59 = STAINLESS STEEL ROD IN SLEEVE (10 FT.+) JV7074_SP_SET: STAINLESS STEEL ROD IN SLEEVE JV7074_STAMPING: KINEMATIC 1992 JV7074_MARK LOGO: NGS JV7074_PROJECTION: FLUSH JV7074_MAGNETIC: N = NO MAGNETIC MATERIAL JV7074_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV7074_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV7074+SATELLITE: SATELLITE OBSERVATIONS - July 23, 2005 JV7074_ROD/PIPE-DEPTH: 3.4 meters JV7074_SLEEVE-DEPTH : 1.0 meters JV7074 JV7074 HISTORY - Date Condition Report By JV7074 HISTORY - 1992 MONUMENTED NGS JV7074 HISTORY - 20021113 GOOD POWELL JV7074 HISTORY - 20050405 GOOD USPSQD JV7074 HISTORY - 20050723 GOOD GEOCAC JV7074 JV7074 STATION DESCRIPTION JV7074 JV7074'DESCRIBED BY NATIONAL GEODETIC SURVEY 1992 JV7074'THE STATION IS LOCATED ABOUT 15.0 KM (9.30 MI) NORTH OF THE NATIONAL JV7074'INSTITUTE OF STANDARDS AND TECHNOLOGY, 3.2 KM (2.00 MI) SOUTH OF JV7074'DAMASCUS, AND ON THE WEST SIDE OF HIGHWAY 27. OWNERSHIP--HIGHWAY JV7074'RIGHT-OF-WAY. JV7074'TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAY 355 AND STATE JV7074'HIGHWAY 27 IN GERMANTOWN, GO NORTH ON HIGHWAY 27 FOR 2.1 KM JV7074'(1.30 MI) TO MORNING STAR ROAD ON THE LEFT. CONTINUE AHEAD NORTH ON JV7074'HIGHWAY 27 5.6 KM (3.45 MI) TO OAK DRIVE ON THE LEFT AND THE STATION JV7074'BETWEEN OAK DRIVE AND HIGHWAY 27. JV7074'LOCATED 23.7 M (77.8 FT) NORTH FROM SIGN (JOHN T. BAKER JR. HIGH JV7074'SCHOOL), 18.8 M (61.7 FT) NORTH-NORTHEAST FROM POWER POLE WITH LIGHT, JV7074'18.2 M (59.7 FT) WEST-NORTHWEST FROM CENTERLINE OF HIGHWAY 27, 17.3 M JV7074'(56.8 FT) EAST-SOUTHEAST FROM THE CENTERLINE OF OAK DRIVE AND 1.0 M JV7074'(3.3 FT) SOUTHWEST FROM WITNESS POST. JV7074 JV7074 STATION RECOVERY (2002) JV7074 JV7074'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) JV7074'RECOVERED IN GOOD CONDITION. JV7074 JV7074 STATION RECOVERY (2005) JV7074 JV7074'RECOVERY NOTE BY US POWER SQUADRON 2005 (FM) JV7074'RECOVERED IN GOOD CONDITION. JV7074 JV7074 STATION RECOVERY (2005) JV7074 JV7074'RECOVERY NOTE BY GEOCACHING 2005 (APC) JV7074'FOUND AS DESCRIBED AND ACROSS OAK DRIVE FROM THE ENTRANCE TO JOHN JV7074'HAINES PARK, EXCEPT NO WITNESS POST WAS INSTALLED AT THE STATION. THE JV7074'SHREDDED REMAINS OF A CARSONITE WITNESS POST WERE OBSERVED ON THE JV7074'GROUND NEARBY. 1 National Geodetic Survey, Retrieval Date = AUGUST 1, 2005 AA5777 *********************************************************************** AA5777 DESIGNATION - POOLE AA5777 PID - AA5777 AA5777 STATE/COUNTY- MD/MONTGOMERY AA5777 USGS QUAD - DAMASCUS (1993) AA5777 AA5777 *CURRENT SURVEY CONTROL AA5777 ___________________________________________________________________ AA5777* NAD 83(1991)- 39 18 00.86904(N) 077 11 56.79816(W) ADJUSTED AA5777* NAVD 88 - 245.6 (meters) 806. (feet) GPS OBS AA5777 ___________________________________________________________________ AA5777 X - 1,095,066.797 (meters) COMP AA5777 Y - -4,819,608.213 (meters) COMP AA5777 Z - 4,018,301.369 (meters) COMP AA5777 LAPLACE CORR- 2.90 (seconds) DEFLEC99 AA5777 ELLIP HEIGHT- 213.71 (meters) (08/30/02) GPS OBS AA5777 GEOID HEIGHT- -31.85 (meters) GEOID03 AA5777 AA5777 HORZ ORDER - FIRST AA5777 ELLP ORDER - FOURTH CLASS II AA5777 AA5777.The horizontal coordinates were established by GPS observations AA5777.and adjusted by the National Geodetic Survey in June 1995. AA5777 AA5777.The orthometric height was determined by GPS observations and a AA5777.high-resolution geoid model. AA5777 AA5777.The X, Y, and Z were computed from the position and the ellipsoidal ht. AA5777 AA5777.The Laplace correction was computed from DEFLEC99 derived deflections. AA5777 AA5777.The ellipsoidal height was determined by GPS observations AA5777.and is referenced to NAD 83. AA5777 AA5777.The geoid height was determined by GEOID03. AA5777 AA5777; North East Units Scale Factor Converg. AA5777;SPC MD - 181,355.990 382,825.302 MT 0.99997723 -0 07 29.9 AA5777;SPC MD - 594,998.78 1,255,986.01 sFT 0.99997723 -0 07 29.9 AA5777;UTM 18 - 4,352,401.130 310,373.251 MT 1.00004276 -1 23 35.9 AA5777 AA5777! - Elev Factor x Scale Factor = Combined Factor AA5777!SPC MD - 0.99996647 x 0.99997723 = 0.99994370 AA5777!UTM 18 - 0.99996647 x 1.00004276 = 1.00000923 AA5777 AA5777 SUPERSEDED SURVEY CONTROL AA5777 AA5777 ELLIP H (06/13/95) 213.66 (m) GP( ) 4 2 AA5777 AA5777.Superseded values are not recommended for survey control. AA5777.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AA5777.See file dsdata.txt to determine how the superseded data were derived. AA5777 AA5777_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1037352401(NAD 83) AA5777_MARKER: DD = SURVEY DISK AA5777_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AA5777_STAMPING: POOLE 1961 AA5777_MARK LOGO: NONE AA5777_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT AA5777_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AA5777+STABILITY: SURFACE MOTION AA5777_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AA5777+SATELLITE: SATELLITE OBSERVATIONS - March 24, 2004 AA5777 AA5777 HISTORY - Date Condition Report By AA5777 HISTORY - 1961 MONUMENTED RBNF AA5777 HISTORY - 20021113 GOOD POWELL AA5777 HISTORY - 20040324 GOOD URS AA5777 HISTORY - 20050723 GOOD GEOCAC AA5777 AA5777 STATION DESCRIPTION AA5777 AA5777'DESCRIBED BY RESEARCHED BUT NOT FOUND 1961 AA5777'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY AA5777'5.0 MI (8.0 KM) SOUTH OF THE TOWN OF MOUNT AIRY. TO REACH THE STATION AA5777'FROM THE JUNCTION OF KEMPTOWM ROAD (S.R. 80) AND RIDGE ROAD (S.R. 27), AA5777'GO SOUTH 1.1 MI (1.8 KM) ALONG RIDGE ROAD TO THE INTERSECTION WITH GUE AA5777'ROAD ON THE LEFT. CONTINUE SOUTH 0.1 MI (0.2 KM) ALONG RIDGE ROAD TO AA5777'THE STATION ON THE LEFT. AA5777' AA5777'THE STATION IS A DISK SET IN THE TOP OF A CONCRETE MONUMENT WHICH IS 1 AA5777'INCH BELOW GROUND LEVEL, AND STAMPED "POOLE 1961". THE DISK IS AA5777'LOCATED 8.3 FT (2.5 M) SOUTH-SOUTHEAST OF THE EDGE OF PAVEMENT, 21.1 AA5777'FT (6.4 M) WEST-SOUTHWEST OF POWER POLE NO. 43, 57.3 FT (17.5 M) AA5777'EAST-NORTHEAST OF A ROAD SIGN, AND 1.7 FT (0.5 M) NORTH-NORTHWEST OF A AA5777'CARSONITE WITNESS POST. AA5777 AA5777 STATION RECOVERY (2002) AA5777 AA5777'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) AA5777'RECOVERED IN GOOD CONDITION. AA5777 AA5777 STATION RECOVERY (2004) AA5777 AA5777'RECOVERY NOTE BY URS COMPANY 2004 AA5777'RECOVERED IN GOOD CONDITION. AA5777 AA5777 STATION RECOVERY (2005) AA5777 AA5777'RECOVERY NOTE BY GEOCACHING 2005 (APC) AA5777'STATION IS DIRECTLY ACROSS RIDGE ROAD FROM HOUSE NUMBER 27110. FOUND AA5777'AS DESCRIBED, EXCEPT NO WITNESS POST WAS OBSERVED. 1 National Geodetic Survey, Retrieval Date = AUGUST 1, 2005 JV2564 *********************************************************************** JV2564 DESIGNATION - UU 91 JV2564 PID - JV2564 JV2564 STATE/COUNTY- MD/MONTGOMERY JV2564 USGS QUAD - DAMASCUS (1993) JV2564 JV2564 *CURRENT SURVEY CONTROL JV2564 ___________________________________________________________________ JV2564* NAD 83(1986)- 39 17 10. (N) 077 11 47. (W) SCALED JV2564* NAVD 88 - 257.127 (meters) 843.59 (feet) ADJUSTED JV2564 ___________________________________________________________________ JV2564 GEOID HEIGHT- -31.82 (meters) GEOID03 JV2564 DYNAMIC HT - 256.991 (meters) 843.14 (feet) COMP JV2564 MODELED GRAV- 980,092.0 (mgal) NAVD 88 JV2564 JV2564 VERT ORDER - SECOND CLASS 0 JV2564 JV2564.The horizontal coordinates were scaled from a topographic map and have JV2564.an estimated accuracy of +/- 6 seconds. JV2564 JV2564.The orthometric height was determined by differential leveling JV2564.and adjusted by the National Geodetic Survey in June 1991. JV2564 JV2564.The geoid height was determined by GEOID03. JV2564 JV2564.The dynamic height is computed by dividing the NAVD 88 JV2564.geopotential number by the normal gravity value computed on the JV2564.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2564.degrees latitude (g = 980.6199 gals.). JV2564 JV2564.The modeled gravity was interpolated from observed gravity values. JV2564 JV2564; North East Units Estimated Accuracy JV2564;SPC MD - 179,790. 383,060. MT (+/- 180 meters Scaled) JV2564 JV2564 SUPERSEDED SURVEY CONTROL JV2564 JV2564 NGVD 29 (??/??/??) 257.332 (m) 844.26 (f) ADJUSTED 2 0 JV2564 JV2564.Superseded values are not recommended for survey control. JV2564.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2564.See file dsdata.txt to determine how the superseded data were derived. JV2564 JV2564_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ105508(NAD 83) JV2564_MARKER: DB = BENCH MARK DISK JV2564_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV2564_SP_SET: SET IN TOP OF CONCRETE MONUMENT JV2564_STAMPING: UU 91 1942 JV2564_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV2564+STABILITY: SURFACE MOTION JV2564 JV2564 HISTORY - Date Condition Report By JV2564 HISTORY - 1942 MONUMENTED CGS JV2564 HISTORY - 19941005 GOOD USPSQD JV2564 HISTORY - 20050723 POOR GEOCAC JV2564 JV2564 STATION DESCRIPTION JV2564 JV2564'DESCRIBED BY COAST AND GEODETIC SURVEY 1942 JV2564'0.4 MI W FROM DAMASCUS. JV2564'0.4 MILE SOUTHEAST ALONG STATE HIGHWAY 108 FROM THE POST OFFICE JV2564'AT DAMASCUS, MONTGOMERY COUNTY, AT THE JUNCTION OF A ROAD JV2564'LEADING NORTH, 26 FEET NORTH OF THE CENTER LINE OF THE HIGHWAY, JV2564'21.5 FEET EAST OF THE CENTER LINE OF THE ROAD, 7.5 FEET NORTH OF JV2564'POLE 18, AND NEAR A WHITE WOODEN WITNESS POST. A STANDARD DISK, JV2564'STAMPED UU 91 1942 AND SET IN THE TOP OF A CONCRETE POST. JV2564 JV2564 STATION RECOVERY (1994) JV2564 JV2564'RECOVERY NOTE BY US POWER SQUADRON 1994 JV2564'RECOVERED IN GOOD CONDITION. JV2564 JV2564 STATION RECOVERY (2005) JV2564 JV2564'RECOVERY NOTE BY GEOCACHING 2005 (APC) JV2564'DAMAGED CONCRETE POST FOUND AT DESCRIBED LOCATION. TOP PART OF POST, JV2564'INCLUDING DISK, IS BROKEN OFF. BREAK IS THROUGH DRILL HOLE, PART OF JV2564'WHICH IS VISIBLE IN THE REMAINING CONCRETE. A SMALL PART OF THE JV2564'IMPRESSION APPARENTLY MADE BY THE DISK ALSO REMAINS. JV2564' JV2564'LOCATION IS 1.5 FEET WEST OF A METAL WITNESS POST. THE UNNAMED ROAD IN JV2564'THE 1942 DESCRIPTION IS HOWARD CHAPEL DRIVE. JV2564' JV2564'HANDHELD GPS COORDINATES -- 39 17 10.5 N, 077 11 47.3 W.