1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2699 *********************************************************************** JV2699 DESIGNATION - 1605 JV2699 PID - JV2699 JV2699 STATE/COUNTY- MD/MONTGOMERY JV2699 USGS QUAD - ROCKVILLE (1984) JV2699 JV2699 *CURRENT SURVEY CONTROL JV2699 ___________________________________________________________________ JV2699* NAD 83(1986)- 39 04 54. (N) 077 08 53. (W) SCALED JV2699* NAVD 88 - 130.78 (+/-2cm) 429.1 (feet) VERTCON JV2699 ___________________________________________________________________ JV2699 GEOID HEIGHT- -31.71 (meters) GEOID99 JV2699 JV2699 VERT ORDER - SECOND CLASS 0 (See Below) JV2699 JV2699.The horizontal coordinates were scaled from a topographic map and have JV2699.an estimated accuracy of +/- 6 seconds. JV2699 JV2699.The NAVD 88 height was computed by applying the VERTCON shift value to JV2699.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2699.The vertical order pertains to the superseded datum. JV2699 JV2699.The geoid height was determined by GEOID99. JV2699 JV2699; North East Units Estimated Accuracy JV2699;SPC MD - 157,080. 387,190. MT (+/- 180 meters Scaled) JV2699 JV2699 SUPERSEDED SURVEY CONTROL JV2699 JV2699 NGVD 29 (??/??/??) 130.996 (m) 429.78 (f) ADJUSTED 2 0 JV2699 JV2699.Superseded values are not recommended for survey control. JV2699.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2699.See file dsdata.txt to determine how the superseded data were derived. JV2699 JV2699_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ142280(NAD 83) JV2699_MARKER: DD = SURVEY DISK JV2699_SETTING: 30 = CONCRETE WALK JV2699_STAMPING: 1605 JV2699_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV2699 JV2699 HISTORY - Date Condition Report By JV2699 HISTORY - UNK MONUMENTED WSSC JV2699 HISTORY - 1939 GOOD WSSC JV2699 HISTORY - 20020125 MARK NOT FOUND MDSHA JV2699 JV2699 STATION DESCRIPTION JV2699 JV2699'DESCRIBED BY WASH SUBURB SAN COMM 1939 JV2699'AT ROCKVILLE. JV2699'AT ROCKVILLE HIGH SCHOOL, IN THE EAST WALL, 7 FEET SOUTH OF THE JV2699'STEPS AT THE ENTRANCE, AND 1.5 FEET ABOVE THE CONCRETE WALK. JV2699 JV2699 STATION RECOVERY (2002) JV2699 JV2699'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV2699'THE STATION WAS SEARCHED FOR AND NOT RECOVERED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2700 *********************************************************************** JV2700 DESIGNATION - 1715 JV2700 PID - JV2700 JV2700 STATE/COUNTY- MD/MONTGOMERY JV2700 USGS QUAD - ROCKVILLE (1984) JV2700 JV2700 *CURRENT SURVEY CONTROL JV2700 ___________________________________________________________________ JV2700* NAD 83(1986)- 39 04 48. (N) 077 08 39. (W) SCALED JV2700* NAVD 88 - 132.24 (+/-2cm) 433.9 (feet) VERTCON JV2700 ___________________________________________________________________ JV2700 GEOID HEIGHT- -31.72 (meters) GEOID99 JV2700 JV2700 VERT ORDER - SECOND CLASS 0 (See Below) JV2700 JV2700.The horizontal coordinates were scaled from a topographic map and have JV2700.an estimated accuracy of +/- 6 seconds. JV2700 JV2700.The NAVD 88 height was computed by applying the VERTCON shift value to JV2700.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2700.The vertical order pertains to the superseded datum. JV2700 JV2700.The geoid height was determined by GEOID99. JV2700 JV2700; North East Units Estimated Accuracy JV2700;SPC MD - 156,900. 387,530. MT (+/- 180 meters Scaled) JV2700 JV2700 SUPERSEDED SURVEY CONTROL JV2700 JV2700 NGVD 29 (??/??/??) 132.457 (m) 434.57 (f) ADJUSTED 2 0 JV2700 JV2700.Superseded values are not recommended for survey control. JV2700.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2700.See file dsdata.txt to determine how the superseded data were derived. JV2700 JV2700_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ145278(NAD 83) JV2700_MARKER: DD = SURVEY DISK JV2700_SETTING: 0 = IRON PIPE JV2700_STAMPING: 1715 JV2700_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV2700 JV2700 HISTORY - Date Condition Report By JV2700 HISTORY - UNK MONUMENTED WSSC JV2700 HISTORY - 1939 GOOD WSSC JV2700 HISTORY - 20020125 MARK NOT FOUND MDSHA JV2700 JV2700 STATION DESCRIPTION JV2700 JV2700'DESCRIBED BY WASH SUBURB SAN COMM 1939 JV2700'AT ROCKVILLE. JV2700'ON ROCKVILLE PIKE, ABOUT 300 FEET SOUTHEAST OF THE CITY LIMITS, JV2700'NEAR THE JUNCTION OF A STREET, ON THE WEST SIDE OF THE ROAD, 74.6 JV2700'FEET NORTHWEST ACROSS THE HIGHWAY FROM A 10-INCH MAPLE TREE, 49 JV2700'FEET SOUTHEAST OF TELEPHONE POLE 384, 48.6 FEET WEST ACROSS THE JV2700'HIGHWAY FROM ANOTHER POLE, 14.7 FEET NORTHEAST OF A GUY POLE, JV2700'AND UNDER A WATER-METER COVER. JV2700 JV2700 STATION RECOVERY (2002) JV2700 JV2700'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV2700'THE STATION WAS SEARCHED FOR AND NOT RECOVERED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2676 *********************************************************************** JV2676 DESIGNATION - 1896 JV2676 PID - JV2676 JV2676 STATE/COUNTY- MD/MONTGOMERY JV2676 USGS QUAD - CLARKSVILLE (1979) JV2676 JV2676 *CURRENT SURVEY CONTROL JV2676 ___________________________________________________________________ JV2676* NAD 83(1986)- 39 09 21. (N) 076 59 57. (W) SCALED JV2676* NAVD 88 - 135.27 (+/-2cm) 443.8 (feet) VERTCON JV2676 ___________________________________________________________________ JV2676 GEOID HEIGHT- -31.92 (meters) GEOID99 JV2676 JV2676 VERT ORDER - SECOND CLASS 0 (See Below) JV2676 JV2676.The horizontal coordinates were scaled from a topographic map and have JV2676.an estimated accuracy of +/- 6 seconds. JV2676 JV2676.The NAVD 88 height was computed by applying the VERTCON shift value to JV2676.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2676.The vertical order pertains to the superseded datum. JV2676 JV2676.The geoid height was determined by GEOID99. JV2676 JV2676; North East Units Estimated Accuracy JV2676;SPC MD - 165,310. 400,070. MT (+/- 180 meters Scaled) JV2676 JV2676 SUPERSEDED SURVEY CONTROL JV2676 JV2676 NGVD 29 (??/??/??) 135.482 (m) 444.49 (f) ADJUSTED 2 0 JV2676 JV2676.Superseded values are not recommended for survey control. JV2676.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2676.See file dsdata.txt to determine how the superseded data were derived. JV2676 JV2676_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ272359(NAD 83) JV2676_MARKER: DD = SURVEY DISK JV2676_SETTING: 17 = SET INTO TOP OF METAL PIPE DRIVEN INTO GROUND JV2676_STAMPING: 1896 JV2676_MARK LOGO: WSSC JV2676_MAGNETIC: O = OTHER; SEE DESCRIPTION JV2676_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV2676_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV2676+SATELLITE: SATELLITE OBSERVATIONS - August 28, 2001 JV2676 JV2676 HISTORY - Date Condition Report By JV2676 HISTORY - 1944 MONUMENTED WSSC JV2676 HISTORY - 20010828 GOOD MDSHA JV2676 JV2676 STATION DESCRIPTION JV2676 JV2676'DESCRIBED BY WASH SUBURB SAN COMM 1944 JV2676'0.8 MI E FROM ASHTON. JV2676'ON THE CLARKSVILLE ROAD (US HWY 29), AT THE JUNCTION OF MINK HOLLOW JV2676'ROAD, 38.2 FT N OF THE CENTERLINE OF THE HWY, 39.6 FT E OF THE CENTER JV2676'LINE OF MINK HOLLOW ROAD, 17.9 FT NW OF A 36 INCH OAK TREE, 13.7 FT S JV2676'OF AN 18 INCH OAK TREE, 13 FT N OF A 12 INCH OAK TREE, AND 14.6 FT JV2676'NE OF A 30 INCH OAK TREE. JV2676 JV2676 STATION RECOVERY (2001) JV2676 JV2676'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV2676'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV1062 *********************************************************************** JV1062 DESIGNATION - 1905 JV1062 PID - JV1062 JV1062 STATE/COUNTY- MD/MONTGOMERY JV1062 USGS QUAD - CLARKSVILLE (1979) JV1062 JV1062 *CURRENT SURVEY CONTROL JV1062 ___________________________________________________________________ JV1062* NAD 83(1986)- 39 08 18. (N) 076 59 43. (W) SCALED JV1062* NAVD 88 - 163.51 (+/-2cm) 536.4 (feet) VERTCON JV1062 ___________________________________________________________________ JV1062 GEOID HEIGHT- -31.93 (meters) GEOID99 JV1062 JV1062 VERT ORDER - SECOND CLASS 0 (See Below) JV1062 JV1062.The horizontal coordinates were scaled from a topographic map and have JV1062.an estimated accuracy of +/- 6 seconds. JV1062 JV1062.The NAVD 88 height was computed by applying the VERTCON shift value to JV1062.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV1062.The vertical order pertains to the superseded datum. JV1062 JV1062.The geoid height was determined by GEOID99. JV1062 JV1062; North East Units Estimated Accuracy JV1062;SPC MD - 163,360. 400,410. MT (+/- 180 meters Scaled) JV1062 JV1062 SUPERSEDED SURVEY CONTROL JV1062 JV1062 NGVD 29 (??/??/??) 163.721 (m) 537.14 (f) ADJUSTED 2 0 JV1062 JV1062.Superseded values are not recommended for survey control. JV1062.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV1062.See file dsdata.txt to determine how the superseded data were derived. JV1062 JV1062_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ275340(NAD 83) JV1062_MARKER: DD = SURVEY DISK JV1062_SETTING: 17 = SET INTO TOP OF METAL PIPE DRIVEN INTO GROUND JV1062_STAMPING: 1905 JV1062_MARK LOGO: WSSC JV1062_MAGNETIC: O = OTHER; SEE DESCRIPTION JV1062_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV1062 JV1062 HISTORY - Date Condition Report By JV1062 HISTORY - UNK MONUMENTED WSSC JV1062 HISTORY - 1967 GOOD MDSRC JV1062 HISTORY - 20020125 GOOD MDSHA JV1062 JV1062 STATION DESCRIPTION JV1062 JV1062'DESCRIBED BY MD STATE ROADS COMM 1967 JV1062'0.2 MI N FROM EDNOR. JV1062'ON COLESVILLE ROAD, AT THE JUNCTION OF A PRIVATE DRIVE TO THE JV1062'W.J. THOMAS RESIDENCE, 44 FT. EAST OF THE CENTERLINE OF COLESVILLE JV1062'RD., AND 21.5 FEET SOUTH OF THE PRIVATE DRIVE, 59.3 SOUTH OF A JV1062'POWER POLE NOT NUMBERED. JV1062 JV1062 STATION RECOVERY (2002) JV1062 JV1062'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV1062'THE STATION WAS RECOVERED IN GOOD CONDITION, A NEW DESCRIPTION JV1062'FOLLOWS. THE STATION IS LOCATED ABOUT 1.2 MI (1.93 KM) SOUTHEAST OF JV1062'ASTON AND 9.1 MI (14.65 KM) NORTHEAST OF ROCKVILLE. TO REACH THE JV1062'STATION FROM THE INTERSECTION OF STATE HIGHWAY 650 AND STATE HIGHWAY JV1062'108 IN ASHTON, GO SOUTHEAST ALONG STATE HIGHWAY 650 FOR 1.2 MI (1.93 JV1062'KM) TO THE SHRI MANGAL MANDIR TEMPLE ON THE RIGHT AND THE STATION ON JV1062'THE LEFT. NOTE=THE STATION IS ALSO 0.2 MI (0.32 KM) NORTH OF EDNOR JV1062'ROAD. THE STATION IS A WSSC SURVEY DISK SET IN THE TOP OF A 2 INCH (5 JV1062'CM) ROUND METAL PIPE WHICH IS FLUSH WITH THE GROUND. IT IS 44.5 FT JV1062'(13.6 M) EAST OF THE CENTER LINE OF THE HIGHWAY, 21.5 FT (6.6 M) SOUTH JV1062'OF THE CENTER OF THE GRAVEL DRIVEWAY LEADING TO HOUSE NUMBER 17107, JV1062'39.0 FT (11.9 M) NORTHEAST OF A FIRE HYDRANT, 46.0 FT (14.0 M) JV1062'NORTHEAST OF TELEPHONE POLE NUMBER 368, AND 1.3 FT (0.4 M) WEST OF A JV1062'FIBERGLAS WITNESS POST. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2704 *********************************************************************** JV2704 DESIGNATION - 1912 JV2704 PID - JV2704 JV2704 STATE/COUNTY- MD/MONTGOMERY JV2704 USGS QUAD - KENSINGTON (1979) JV2704 JV2704 *CURRENT SURVEY CONTROL JV2704 ___________________________________________________________________ JV2704* NAD 83(1986)- 39 04 58. (N) 077 07 20. (W) SCALED JV2704* NAVD 88 - 105.04 (+/-2cm) 344.6 (feet) VERTCON JV2704 ___________________________________________________________________ JV2704 GEOID HEIGHT- -31.74 (meters) GEOID99 JV2704 JV2704 VERT ORDER - SECOND CLASS 0 (See Below) JV2704 JV2704.The horizontal coordinates were scaled from a topographic map and have JV2704.an estimated accuracy of +/- 6 seconds. JV2704 JV2704.The NAVD 88 height was computed by applying the VERTCON shift value to JV2704.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2704.The vertical order pertains to the superseded datum. JV2704 JV2704.The geoid height was determined by GEOID99. JV2704 JV2704; North East Units Estimated Accuracy JV2704;SPC MD - 157,200. 389,430. MT (+/- 180 meters Scaled) JV2704 JV2704 SUPERSEDED SURVEY CONTROL JV2704 JV2704 NGVD 29 (??/??/??) 105.257 (m) 345.33 (f) ADJUSTED 2 0 JV2704 JV2704.Superseded values are not recommended for survey control. JV2704.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2704.See file dsdata.txt to determine how the superseded data were derived. JV2704 JV2704_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ164281(NAD 83) JV2704_MARKER: DD = SURVEY DISK JV2704_SETTING: 0 = UNSPECIFIED SETTING JV2704_STAMPING: 1912 JV2704_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV2704 JV2704 HISTORY - Date Condition Report By JV2704 HISTORY - UNK MONUMENTED WSSC JV2704 HISTORY - 1939 GOOD WSSC JV2704 HISTORY - 20020125 MARK NOT FOUND MDSHA JV2704 JV2704 STATION DESCRIPTION JV2704 JV2704'DESCRIBED BY WASH SUBURB SAN COMM 1939 JV2704'1.2 MI E FROM ROCKVILLE. JV2704'ON NORBECK ROAD, AT THE JUNCTION OF A DIRT ROAD LEADING SOUTH JV2704'TO VIERS MILL ROAD, AND ON THE NORTH SIDE OF NORBECK ROAD. JV2704 JV2704 STATION RECOVERY (2002) JV2704 JV2704'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV2704'THE STATION WAS SEARCHED FOR AND NOT RECOVERED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2706 *********************************************************************** JV2706 DESIGNATION - 1941 JV2706 PID - JV2706 JV2706 STATE/COUNTY- MD/MONTGOMERY JV2706 USGS QUAD - KENSINGTON (1979) JV2706 JV2706 *CURRENT SURVEY CONTROL JV2706 ___________________________________________________________________ JV2706* NAD 83(1986)- 39 05 23. (N) 077 06 55. (W) SCALED JV2706* NAVD 88 - 82.28 (+/-2cm) 269.9 (feet) VERTCON JV2706 ___________________________________________________________________ JV2706 GEOID HEIGHT- -31.75 (meters) GEOID99 JV2706 JV2706 VERT ORDER - SECOND CLASS 0 (See Below) JV2706 JV2706.The horizontal coordinates were scaled from a topographic map and have JV2706.an estimated accuracy of +/- 6 seconds. JV2706 JV2706.The NAVD 88 height was computed by applying the VERTCON shift value to JV2706.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2706.The vertical order pertains to the superseded datum. JV2706 JV2706.The geoid height was determined by GEOID99. JV2706 JV2706; North East Units Estimated Accuracy JV2706;SPC MD - 157,970. 390,030. MT (+/- 180 meters Scaled) JV2706 JV2706 SUPERSEDED SURVEY CONTROL JV2706 JV2706 NGVD 29 (??/??/??) 82.505 (m) 270.69 (f) ADJUSTED 2 0 JV2706 JV2706.Superseded values are not recommended for survey control. JV2706.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2706.See file dsdata.txt to determine how the superseded data were derived. JV2706 JV2706_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ170288(NAD 83) JV2706_MARKER: B = BOLT JV2706_SETTING: 36 = BRIDGE WINGWALL JV2706_STAMPING: WSSC 1941 JV2706_MARK LOGO: NONE JV2706_MAGNETIC: O = OTHER; SEE DESCRIPTION JV2706_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV2706 JV2706 HISTORY - Date Condition Report By JV2706 HISTORY - UNK MONUMENTED WSSC JV2706 HISTORY - 1939 GOOD WSSC JV2706 HISTORY - 1985 GOOD USPSQD JV2706 HISTORY - 20020125 GOOD MDSHA JV2706 JV2706 STATION DESCRIPTION JV2706 JV2706'DESCRIBED BY WASH SUBURB SAN COMM 1939 JV2706'2 MI E FROM ROCKVILLE. JV2706'ON NORBECK ROAD, AT THE SOUTHWEST CORNER OF THE BRIDGE OVER ROCK JV2706'CREEK, AND IN THE TOP OF THE WING WALL. JV2706 JV2706 STATION RECOVERY (1985) JV2706 JV2706'RECOVERY NOTE BY US POWER SQUADRON 1985 JV2706'REWRITE DESC. AS FOLLOW: ON BALTIMORE ROAD. AT THE SOUTHWEST CORNER JV2706'OF THE BRIDGE OVER ROCK CREEK, AND IN THE TOP WING WALL. JV2706 JV2706 STATION RECOVERY (2002) JV2706 JV2706'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV2706'THE STATION WAS RECOVERED IN GOOD CONDITION, A NEW DESCRIPTION JV2706'FOLLOWS. THE STATION IS LOCATED IN THE EAST SECTION OF ROCKVILLE. TO JV2706'REACH THE STATION FROM THE INTERSECTION OF STATE HIGHWAY 28 (NORBECK JV2706'ROAD) AND STATE HIGHWAY 586(VEIRS MILLS ROAD), GO NORTH ALONG NORBECK JV2706'ROAD FOR 0.35 MI (0.56 KM) TO BALTIMORE ROAD. TURN RIGHT AND GO EAST JV2706'THEN NORTH ALONG BALTIMORE ROAD FOR 1.5 MI (2.41 KM) TO THE BRIDGE JV2706'OVER ROCK CREEK AND THE STATION ON THE RIGHT. THE STATION IS A WSSC JV2706'BOLT AND WASHER SET IN THE TOP OF THE SOUTHWEST WING WALL AND ABOUT JV2706'LEVEL WITH THE ROAD. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2853 *********************************************************************** JV2853 DESIGNATION - 1944 JV2853 PID - JV2853 JV2853 STATE/COUNTY- MD/MONTGOMERY JV2853 USGS QUAD - ROCKVILLE (1984) JV2853 JV2853 *CURRENT SURVEY CONTROL JV2853 ___________________________________________________________________ JV2853* NAD 83(1986)- 39 00 56. (N) 077 12 45. (W) SCALED JV2853* NAVD 88 - 96.379 (meters) 316.20 (feet) ADJUSTED JV2853 ___________________________________________________________________ JV2853 GEOID HEIGHT- -31.70 (meters) GEOID99 JV2853 DYNAMIC HT - 96.329 (meters) 316.04 (feet) COMP JV2853 MODELED GRAV- 980,108.3 (mgal) NAVD 88 JV2853 JV2853 VERT ORDER - SECOND CLASS 0 JV2853 JV2853.The horizontal coordinates were scaled from a topographic map and have JV2853.an estimated accuracy of +/- 6 seconds. JV2853 JV2853.The orthometric height was determined by differential leveling JV2853.and adjusted by the National Geodetic Survey in June 1991. JV2853 JV2853.The geoid height was determined by GEOID99. JV2853 JV2853.The dynamic height is computed by dividing the NAVD 88 JV2853.geopotential number by the normal gravity value computed on the JV2853.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2853.degrees latitude (g = 980.6199 gals.). JV2853 JV2853.The modeled gravity was interpolated from observed gravity values. JV2853 JV2853; North East Units Estimated Accuracy JV2853;SPC MD - 149,750. 381,600. MT (+/- 180 meters Scaled) JV2853 JV2853 SUPERSEDED SURVEY CONTROL JV2853 JV2853 NGVD 29 (??/??/??) 96.611 (m) 316.96 (f) ADJUSTED 2 0 JV2853 JV2853.Superseded values are not recommended for survey control. JV2853.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2853.See file dsdata.txt to determine how the superseded data were derived. JV2853 JV2853_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ084208(NAD 83) JV2853_MARKER: B = BOLT JV2853_SETTING: 36 = BRIDGE WINGWALL JV2853_STAMPING: 1944 WSSC JV2853_MARK LOGO: NONE JV2853_MAGNETIC: O = OTHER; SEE DESCRIPTION JV2853_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV2853_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV2853+SATELLITE: SATELLITE OBSERVATIONS - August 17, 2001 JV2853 JV2853 HISTORY - Date Condition Report By JV2853 HISTORY - UNK MONUMENTED WSSC JV2853 HISTORY - 1965 GOOD WSSC JV2853 HISTORY - 20010817 GOOD MDSHA JV2853 JV2853 STATION DESCRIPTION JV2853 JV2853'DESCRIBED BY WASH SUBURB SAN COMM 1965 JV2853'0.2 MI SW FROM POTOMAC. JV2853'0.25 MI. S.W. ALONG STATE HW. 189 (FALLS RAD) FROM ITS JV2853'INTERSECTION WITH STATE HWY. 190 (RIVER ROAD) AT POTOMAC IN THE JV2853'N.W. CORNER OF THE BRIDGE OVER ROCK RUN. JV2853 JV2853 STATION RECOVERY (2001) JV2853 JV2853'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV2853'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2703 *********************************************************************** JV2703 DESIGNATION - 1946 JV2703 PID - JV2703 JV2703 STATE/COUNTY- MD/MONTGOMERY JV2703 USGS QUAD - ROCKVILLE (1984) JV2703 JV2703 *CURRENT SURVEY CONTROL JV2703 ___________________________________________________________________ JV2703* NAD 83(1986)- 39 05 03. (N) 077 07 39. (W) SCALED JV2703* NAVD 88 - 111.90 (+/-2cm) 367.1 (feet) VERTCON JV2703 ___________________________________________________________________ JV2703 GEOID HEIGHT- -31.73 (meters) GEOID99 JV2703 JV2703 VERT ORDER - SECOND CLASS 0 (See Below) JV2703 JV2703.The horizontal coordinates were scaled from a topographic map and have JV2703.an estimated accuracy of +/- 6 seconds. JV2703 JV2703.The NAVD 88 height was computed by applying the VERTCON shift value to JV2703.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2703.The vertical order pertains to the superseded datum. JV2703 JV2703.The geoid height was determined by GEOID99. JV2703 JV2703; North East Units Estimated Accuracy JV2703;SPC MD - 157,360. 388,970. MT (+/- 180 meters Scaled) JV2703 JV2703 SUPERSEDED SURVEY CONTROL JV2703 JV2703 NGVD 29 (??/??/??) 112.116 (m) 367.83 (f) ADJUSTED 2 0 JV2703 JV2703.Superseded values are not recommended for survey control. JV2703.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2703.See file dsdata.txt to determine how the superseded data were derived. JV2703 JV2703_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ159282(NAD 83) JV2703_MARKER: B = BOLT JV2703_SETTING: 16 = (FASTENED TO) A METAL ROD WITH BASE PLATE BURIED/SCREWED JV2703+WITH SETTING: INTO GROUND JV2703_STAMPING: 1946 WSSC JV2703_MARK LOGO: NONE JV2703_MAGNETIC: O = OTHER; SEE DESCRIPTION JV2703_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV2703_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV2703+SATELLITE: SATELLITE OBSERVATIONS - January 25, 2002 JV2703 JV2703 HISTORY - Date Condition Report By JV2703 HISTORY - UNK MONUMENTED WSSC JV2703 HISTORY - 1939 GOOD WSSC JV2703 HISTORY - 20020125 GOOD MDSHA JV2703 JV2703 STATION DESCRIPTION JV2703 JV2703'DESCRIBED BY WASH SUBURB SAN COMM 1939 JV2703'1 MI E FROM ROCKVILLE. JV2703'ON NORBECK ROAD, OPPOSITE THE ENTRANCE TO ST. MARYS CEMETERY, AT JV2703'THE JUNCTION OF AVERY ROAD, AND ON THE NORTH SIDE OF NORBECK JV2703'ROAD. JV2703 JV2703 STATION RECOVERY (2002) JV2703 JV2703'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV2703'THE STATION IS LOCATED IN THE TOWN OF ROCKVILLE. TO REACH THE STATION JV2703'FROM THE INTERSECTION OF STATE HIGHWAY 28 (NORBECK ROAD) AND STATE JV2703'HIGHWAY 586 (VEIRS MILLS ROAD), GO NORTH ALONG NORBECK ROAD FOR 0.35 JV2703'MI (0.56 KM) TO BALTIMORE ROAD. TURN RIGHT AND GO EAST ALONG BALTIMORE JV2703'ROAD FOR 0.5 MI (0.8 KM) TO THE SAINT MARYS CEMETERY ON THE RIGHT AND JV2703'THE STATION ON THE LEFT. THE STATION IS A BOLT AND WASHER SET IN THE JV2703'TOP OF A 2 INCH (5 CM) ROUND METAL PIPE WHICH IS RECESSED 2 INCH (5 JV2703'CM) BELOW THE GROUND. IT IS 32.4 FT (9.9 M) NORTH OF THE CENTER LINE JV2703'OF THE ROAD, 2.8 FT (0.9 M) SOUTH OF A 36 INCH (91 CM) TALL STONE WALL JV2703'AND FIBERGLAS WITNESS POST, 11.5 FT (3.5 M) WEST OF POWER POLE NUMBER JV2703'783455-6755, 75.6 FT (23.0 M) EAST OF TELEPHONE POLE NUMBER 4268. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 HV8954 *********************************************************************** HV8954 DESIGNATION - 19888 HV8954 PID - HV8954 HV8954 STATE/COUNTY- MD/MONTGOMERY HV8954 USGS QUAD - WASHINGTON WEST (1983) HV8954 HV8954 *CURRENT SURVEY CONTROL HV8954 ___________________________________________________________________ HV8954* NAD 83(1991)- 38 57 38.88610(N) 077 05 09.28411(W) ADJUSTED HV8954* NAVD 88 - 95.0 (meters) 312. (feet) VERTCON HV8954 ___________________________________________________________________ HV8954 X - 1,109,875.673 (meters) COMP HV8954 Y - -4,840,502.210 (meters) COMP HV8954 Z - 3,988,973.881 (meters) COMP HV8954 LAPLACE CORR- -2.57 (seconds) DEFLEC99 HV8954 ELLIP HEIGHT- 63.02 (meters) (08/30/02) GPS OBS HV8954 GEOID HEIGHT- -31.88 (meters) GEOID99 HV8954 HV8954 HORZ ORDER - FIRST HV8954 ELLP ORDER - FOURTH CLASS II HV8954 HV8954.The horizontal coordinates were established by GPS observations HV8954.and adjusted by the National Geodetic Survey in January 1992. HV8954 HV8954.The NAVD 88 height was computed by applying the VERTCON shift value to HV8954.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) HV8954 HV8954.The X, Y, and Z were computed from the position and the ellipsoidal ht. HV8954 HV8954.The Laplace correction was computed from DEFLEC99 derived deflections. HV8954 HV8954.The ellipsoidal height was determined by GPS observations HV8954.and is referenced to NAD 83. HV8954 HV8954.The geoid height was determined by GEOID99. HV8954 HV8954; North East Units Scale Converg. HV8954;SPC MD - 143,658.319 392,553.992 MT 0.99995094 -0 03 14.1 HV8954;SPC MD - 471,319.00 1,287,904.22 sFT 0.99995094 -0 03 14.1 HV8954;SPC VA N - 2,144,593.673 3,622,555.919 MT 0.99996629 +0 52 57.2 HV8954;UTM 18 - 4,314,495.847 319,269.137 MT 1.00000222 -1 18 43.0 HV8954 HV8954 SUPERSEDED SURVEY CONTROL HV8954 HV8954 ELLIP H (01/27/92) 62.94 (m) GP( ) 4 1 HV8954 NAD 83(1986)- 38 57 38.88518(N) 077 05 09.29452(W) AD( ) 1 HV8954 NGVD 29 (03/05/91) 95.2 (m) 312. (f) GPS OBS HV8954 HV8954.Superseded values are not recommended for survey control. HV8954.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. HV8954.See file dsdata.txt to determine how the superseded data were derived. HV8954 HV8954_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1926914496(NAD 83) HV8954_MARKER: DD = SURVEY DISK HV8954_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT HV8954_STAMPING: 19888 HV8954_MARK LOGO: WSSC HV8954_MAGNETIC: N = NO MAGNETIC MATERIAL HV8954_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO HV8954+STABILITY: SURFACE MOTION HV8954_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR HV8954+SATELLITE: SATELLITE OBSERVATIONS - November 15, 2002 HV8954 HV8954 HISTORY - Date Condition Report By HV8954 HISTORY - 1989 MONUMENTED WSSC HV8954 HISTORY - 19920710 GOOD NOS HV8954 HISTORY - 19960727 GOOD DMW HV8954 HISTORY - 20001010 GOOD MDSHA HV8954 HISTORY - 20021115 GOOD POWELL HV8954 HISTORY - 20030724 GOOD GEOCAC HV8954 HV8954 STATION DESCRIPTION HV8954 HV8954'DESCRIBED BY WASH SUBURB SAN COMM 1989 HV8954'THE STATION IS LOCATED ABOUT 2.4 KM (1.5 MI) SOUTH OF CHEVY CHASE, 0.2 HV8954'KM (0.1 MI) SE OF SOMERSET, AND AT FRIENDSHIP HEIGHTS. TO REACH THE HV8954'STATION FROM THE INTERSECTION OF STATE ROAD RTE 355 (WISCONSIN AVE) HV8954'AND WESTERN AVE IN FRIENDSHIP HEIGHTS GO TO THE NW CORNER OF THIS HV8954'INTERSECTION TO THE STATION BEHIND THE SIDEWALK. OWNERSHIP--DISTRICT HV8954'OF COLUMBIA ROAD RIGHT-OF-WAY THE STATION MARK IS A STANDARD WSSC HV8954'BRASS DISK STAMPED 19888 SET IN THE TOP OF A ROUND CONCRETE MONUMENT HV8954'0.2 M (0.7 FT) IN DIAMETER FLUSH IN THE GRASS. IT IS 25.13 M HV8954'(82.45 FT) EAST OF THE SE CORNER OF WOODWARD AND LOTHROP DEPARTMENT HV8954'STORE, 7.45 M (24.44 FT) SSW OF A DISTRICT OF COLUMBIA BOUNDARY HV8954'MONUMENT, AND 18.45 M (60.53 FT) SE OF THE SE CORNER OF THE ESCALATOR HV8954'ENTRANCE FOR THE FRIENDSHIP HEIGHTS METRO STATION. NO REFERENCES WERE HV8954'ESTABLISHED AT THIS TIME. NO STATIONS SERVE AS AZIMUTH MARKS FOR THIS HV8954'STATION AT THIS TIME. HV8954 HV8954 STATION RECOVERY (1992) HV8954 HV8954'RECOVERY NOTE BY NATIONAL OCEAN SERVICE 1992 HV8954'RECOVERED IN GOOD CONDITION. HV8954 HV8954 STATION RECOVERY (1996) HV8954 HV8954'RECOVERY NOTE BY DAFT MCCUNE WALKER INCORPORATED 1996 (JMS) HV8954'RECOVERED AS DESCRIBED. HV8954 HV8954 STATION RECOVERY (2000) HV8954 HV8954'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (DMM) HV8954'RECOVERED AS DESCRIBED. HV8954 HV8954 STATION RECOVERY (2002) HV8954 HV8954'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) HV8954'RECOVERED IN GOOD CONDITION. HV8954 HV8954 STATION RECOVERY (2003) HV8954 HV8954'RECOVERY NOTE BY GEOCACHING 2003 (APC) HV8954'STATION IS LOCATED APPROXIMATELY 2 FEET SOUTHWEST OF THE FENCEPOST HV8954'PIPE CLOSEST TO THE INTERSECTION, AND ABOUT THE SAME DISTANCE AND HV8954'DIRECTION FROM A CARSONITE WITNESS POST. WOODWARD AND LOTHROP STORE HV8954'MENTIONED IN 1989 DESCRIPTION IS NOW A HECHT STORE. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2702 *********************************************************************** JV2702 DESIGNATION - 1998 JV2702 PID - JV2702 JV2702 STATE/COUNTY- MD/MONTGOMERY JV2702 USGS QUAD - ROCKVILLE (1984) JV2702 JV2702 *CURRENT SURVEY CONTROL JV2702 ___________________________________________________________________ JV2702* NAD 83(1986)- 39 05 03. (N) 077 08 23. (W) SCALED JV2702* NAVD 88 - 123.68 (+/-2cm) 405.8 (feet) VERTCON JV2702 ___________________________________________________________________ JV2702 GEOID HEIGHT- -31.72 (meters) GEOID99 JV2702 JV2702 VERT ORDER - SECOND CLASS 0 (See Below) JV2702 JV2702.The horizontal coordinates were scaled from a topographic map and have JV2702.an estimated accuracy of +/- 6 seconds. JV2702 JV2702.The NAVD 88 height was computed by applying the VERTCON shift value to JV2702.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2702.The vertical order pertains to the superseded datum. JV2702 JV2702.The geoid height was determined by GEOID99. JV2702 JV2702; North East Units Estimated Accuracy JV2702;SPC MD - 157,360. 387,910. MT (+/- 180 meters Scaled) JV2702 JV2702 SUPERSEDED SURVEY CONTROL JV2702 JV2702 NGVD 29 (??/??/??) 123.904 (m) 406.51 (f) ADJUSTED 2 0 JV2702 JV2702.Superseded values are not recommended for survey control. JV2702.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2702.See file dsdata.txt to determine how the superseded data were derived. JV2702 JV2702_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ149282(NAD 83) JV2702_MARKER: B = BOLT JV2702_SETTING: 0 = IRON PIPE JV2702_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV2702 JV2702 HISTORY - Date Condition Report By JV2702 HISTORY - UNK MONUMENTED WSSC JV2702 HISTORY - 1939 GOOD WSSC JV2702 HISTORY - 20020125 MARK NOT FOUND MDSHA JV2702 JV2702 STATION DESCRIPTION JV2702 JV2702'DESCRIBED BY WASH SUBURB SAN COMM 1939 JV2702'0.3 MI E FROM ROCKVILLE. JV2702'ON NORBECK ROAD, AT THE JUNCTION OF A ROAD LEADING NORTHWEST, AND JV2702'IN LINE WITH A ROW OF MAPLE TREES. JV2702 JV2702 STATION RECOVERY (2002) JV2702 JV2702'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV2702'THE STATION WAS SEARCHED FOR AND NOT RECOVERED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV7097 *********************************************************************** JV7097 CBN - This is a Cooperative Base Network Control Station. JV7097 DESIGNATION - 20305 JV7097 PID - JV7097 JV7097 STATE/COUNTY- MD/MONTGOMERY JV7097 USGS QUAD - ROCKVILLE (1984) JV7097 JV7097 *CURRENT SURVEY CONTROL JV7097 ___________________________________________________________________ JV7097* NAD 83(1991)- 39 01 00.31786(N) 077 12 18.26226(W) ADJUSTED JV7097* NAVD 88 - 111.4 (meters) 365. (feet) GPS OBS JV7097 ___________________________________________________________________ JV7097 X - 1,098,943.607 (meters) COMP JV7097 Y - -4,839,001.414 (meters) COMP JV7097 Z - 3,993,812.529 (meters) COMP JV7097 LAPLACE CORR- -1.11 (seconds) DEFLEC99 JV7097 ELLIP HEIGHT- 79.64 (meters) (02/12/02) GPS OBS JV7097 GEOID HEIGHT- -31.70 (meters) GEOID99 JV7097 JV7097 HORZ ORDER - A JV7097 ELLP ORDER - FOURTH CLASS I JV7097 JV7097.The horizontal coordinates were established by GPS observations JV7097.and adjusted by the National Geodetic Survey in February 2002. JV7097 JV7097.The orthometric height was determined by GPS observations and a JV7097.high-resolution geoid model. JV7097 JV7097.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7097 JV7097.The Laplace correction was computed from DEFLEC99 derived deflections. JV7097 JV7097.The ellipsoidal height was determined by GPS observations JV7097.and is referenced to NAD 83. JV7097 JV7097.The geoid height was determined by GEOID99. JV7097 JV7097; North East Units Scale Converg. JV7097;SPC MD - 149,886.130 382,240.319 MT 0.99995286 -0 07 43.4 JV7097;SPC MD - 491,751.41 1,254,066.78 sFT 0.99995286 -0 07 43.4 JV7097;SPC VA N - 2,150,652.156 3,612,141.631 MT 0.99997261 +0 48 29.5 JV7097;UTM 18 - 4,320,949.232 309,094.038 MT 1.00004878 -1 23 19.0 JV7097 JV7097 SUPERSEDED SURVEY CONTROL JV7097 JV7097 NAD 83(1991)- 39 01 00.31745(N) 077 12 18.26292(W) AD( ) 1 JV7097 ELLIP H (11/14/94) 79.58 (m) GP( ) 4 2 JV7097 NAD 83(1991)- 39 01 00.31724(N) 077 12 18.26368(W) AD( ) 1 JV7097 ELLIP H (01/11/94) 79.56 (m) GP( ) 4 1 JV7097 JV7097.Superseded values are not recommended for survey control. JV7097.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7097.See file dsdata.txt to determine how the superseded data were derived. JV7097 JV7097_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ0909420949(NAD 83) JV7097_MARKER: DD = SURVEY DISK JV7097_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7097_STAMPING: T.S. 20305 MC JV7097_MARK LOGO: MSI JV7097_MAGNETIC: O = OTHER; SEE DESCRIPTION JV7097_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7097+STABILITY: SURFACE MOTION JV7097_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7097+SATELLITE: SATELLITE OBSERVATIONS - August 17, 2001 JV7097 JV7097 HISTORY - Date Condition Report By JV7097 HISTORY - 1993 MONUMENTED MSI JV7097 HISTORY - 20000501 GOOD MDSHA JV7097 HISTORY - 20010817 GOOD MDSHA JV7097 JV7097 STATION DESCRIPTION JV7097 JV7097'DESCRIBED BY MEASUREMENT SCIENCE INCORPORATED 1993 JV7097'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY JV7097'0.2 MI (0.3 KM) EAST OF THE TOWN OF POTOMAC. TO REACH THE STATION JV7097'FROM THE INTERSECTION OF FALLS ROAD (S.R. 189) AND RIVER ROAD (S.R. JV7097'190) IN POTOMAC, PROCEED SOUTHEAST ALONG RIVER ROAD FOR 0.2 MI JV7097'(0.3 KM) TO INTERSECTION WITH HALL ROAD. TURN LEFT AND TRAVEL JV7097'NORTHEAST ON HALL ROAD FOR APPROXIMATELY 300 FT (91.4 M) TO THE JV7097'INTERSECTION WITH HALL COURT, AND STATION ON THE LEFT, IN THE JV7097'NORTHWEST CORNER OF THE INTERSECTION. JV7097'THE STATION IS A WSSC SURVEY DISK SET IN THE TOP OF A CONCRETE JV7097'MONUMENT, APPROXIMATELY FLUSH WITH THE GROUND SURFACE, AND STAMPED JV7097'T.S. 20305 MC. THE DISK IS LOCATED 18.0 FT (5.5 M) NORTHEAST OF THE JV7097'CENTER LINE OF HALL COURT, 25.6 FT (7.8 M) NORTHWEST OF THE CENTER JV7097'LINE OF HALL ROAD, AND 7.8 FT (2.4 M) WEST OF A METAL LIGHT POLE. JV7097 JV7097 STATION RECOVERY (2000) JV7097 JV7097'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (SFK) JV7097'RECOVERED AS DESCRIBED. JV7097 JV7097 STATION RECOVERY (2001) JV7097 JV7097'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV7097'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV7116 *********************************************************************** JV7116 CBN - This is a Cooperative Base Network Control Station. JV7116 DESIGNATION - 20324 JV7116 PID - JV7116 JV7116 STATE/COUNTY- MD/MONTGOMERY JV7116 USGS QUAD - ROCKVILLE (1984) JV7116 JV7116 *CURRENT SURVEY CONTROL JV7116 ___________________________________________________________________ JV7116* NAD 83(1991)- 39 05 13.83096(N) 077 09 05.05953(W) ADJUSTED JV7116* NAVD 88 - 134.3 (meters) 441. (feet) GPS OBS JV7116 ___________________________________________________________________ JV7116 X - 1,102,384.346 (meters) COMP JV7116 Y - -4,833,185.172 (meters) COMP JV7116 Z - 3,999,898.205 (meters) COMP JV7116 LAPLACE CORR- -1.73 (seconds) DEFLEC99 JV7116 ELLIP HEIGHT- 102.61 (meters) (02/12/02) GPS OBS JV7116 GEOID HEIGHT- -31.71 (meters) GEOID99 JV7116 JV7116 HORZ ORDER - A JV7116 ELLP ORDER - FOURTH CLASS I JV7116 JV7116.The horizontal coordinates were established by GPS observations JV7116.and adjusted by the National Geodetic Survey in February 2002. JV7116 JV7116.The orthometric height was determined by GPS observations and a JV7116.high-resolution geoid model. JV7116 JV7116.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7116 JV7116.The Laplace correction was computed from DEFLEC99 derived deflections. JV7116 JV7116.The ellipsoidal height was determined by GPS observations JV7116.and is referenced to NAD 83. JV7116 JV7116.The geoid height was determined by GEOID99. JV7116 JV7116; North East Units Scale Converg. JV7116;SPC MD - 157,694.504 386,900.976 MT 0.99995663 -0 05 42.1 JV7116;SPC MD - 517,369.39 1,269,357.62 sFT 0.99995663 -0 05 42.1 JV7116;UTM 18 - 4,328,653.798 313,925.788 MT 1.00002634 -1 21 24.7 JV7116 JV7116 SUPERSEDED SURVEY CONTROL JV7116 JV7116 NAD 83(1991)- 39 05 13.83041(N) 077 09 05.05943(W) AD( ) 1 JV7116 ELLIP H (01/11/94) 102.51 (m) GP( ) 4 1 JV7116 JV7116.Superseded values are not recommended for survey control. JV7116.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7116.See file dsdata.txt to determine how the superseded data were derived. JV7116 JV7116_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ1392628654(NAD 83) JV7116_MARKER: DD = SURVEY DISK JV7116_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7116_STAMPING: T.S. 20324 MC JV7116_MARK LOGO: MSI JV7116_MAGNETIC: O = OTHER; SEE DESCRIPTION JV7116_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7116+STABILITY: SURFACE MOTION JV7116_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7116+SATELLITE: SATELLITE OBSERVATIONS - October 17, 2002 JV7116 JV7116 HISTORY - Date Condition Report By JV7116 HISTORY - 1993 MONUMENTED MSI JV7116 HISTORY - 20000501 GOOD MDSHA JV7116 HISTORY - 20020125 GOOD MDSHA JV7116 HISTORY - 20021017 GOOD POWELL JV7116 JV7116 STATION DESCRIPTION JV7116 JV7116'DESCRIBED BY MEASUREMENT SCIENCE INCORPORATED 1993 JV7116'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY JV7116'0.5 MI (0.8 KM) NORTHWEST OF THE CITY OF ROCKVILLE. TO REACH THE JV7116'STATION FROM THE INTERSECTION OF GUDE DRIVE AND HUNGERFORD DRIVE JV7116'(S.R. 355), PROCEED SOUTH ON HUNGERFORD DRIVE FOR 1.4 MI (2.3 KM) TO JV7116'THE INTERSECTION WITH BEALL AVENUE. TURN RIGHT AND TRAVEL WEST ON JV7116'BEALL AVENUE FOR 0.1 MI (0.2 KM) TO THE STATION ON THE RIGHT. JV7116'THE STATION IS A WSSC SURVEY DISK SET IN THE TOP OF A CONCRETE JV7116'MONUMENT, APPROXIMATELY FLUSH WITH THE GROUND SURFACE, AND STAMPED JV7116'T.S. 20324 MC. THE DISK IS LOCATED 35.5 FT (10.8 M) NORTH OF THE JV7116'CENTER LINE OF BEALL AVENUE, 31.8 FT (9.7 M) EAST OF A LAMP POST, AND JV7116'77.0 FT (23.5 M) WEST OF THE CENTER LINE OF A PARKING ENTRANCE. JV7116 JV7116 STATION RECOVERY (2000) JV7116 JV7116'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (SFK) JV7116'RECOVERED AS DESCRIBED. JV7116 JV7116 STATION RECOVERY (2002) JV7116 JV7116'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV7116'RECOVERED AS DESCRIBED. JV7116 JV7116 STATION RECOVERY (2002) JV7116 JV7116'RECOVERY NOTE BY N A POWELL AND ASSOCIATES 2002 (BAP) JV7116'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 AA5751 *********************************************************************** AA5751 DESIGNATION - 20529 AA5751 PID - AA5751 AA5751 STATE/COUNTY- MD/MONTGOMERY AA5751 USGS QUAD - SANDY SPRING (1988) AA5751 AA5751 *CURRENT SURVEY CONTROL AA5751 ___________________________________________________________________ AA5751* NAD 83(1991)- 39 11 24.32615(N) 077 03 55.76571(W) ADJUSTED AA5751* NAVD 88 - 143.6 (meters) 471. (feet) GPS OBS AA5751 ___________________________________________________________________ AA5751 X - 1,108,017.772 (meters) COMP AA5751 Y - -4,824,504.789 (meters) COMP AA5751 Z - 4,008,765.986 (meters) COMP AA5751 LAPLACE CORR- -2.65 (seconds) DEFLEC99 AA5751 ELLIP HEIGHT- 111.80 (meters) (08/30/02) GPS OBS AA5751 GEOID HEIGHT- -31.80 (meters) GEOID99 AA5751 AA5751 HORZ ORDER - FIRST AA5751 ELLP ORDER - FOURTH CLASS II AA5751 AA5751.The horizontal coordinates were established by GPS observations AA5751.and adjusted by the National Geodetic Survey in June 1995. AA5751 AA5751.The orthometric height was determined by GPS observations and a AA5751.high-resolution geoid model. AA5751 AA5751.The X, Y, and Z were computed from the position and the ellipsoidal ht. AA5751 AA5751.The Laplace correction was computed from DEFLEC99 derived deflections. AA5751 AA5751.The ellipsoidal height was determined by GPS observations AA5751.and is referenced to NAD 83. AA5751 AA5751.The geoid height was determined by GEOID99. AA5751 AA5751; North East Units Scale Converg. AA5751;SPC MD - 169,110.687 394,342.206 MT 0.99996485 -0 02 28.0 AA5751;SPC MD - 554,823.98 1,293,771.05 sFT 0.99996485 -0 02 28.0 AA5751;UTM 18 - 4,339,903.716 321,617.243 MT 0.99999182 -1 18 19.9 AA5751 AA5751 SUPERSEDED SURVEY CONTROL AA5751 AA5751 ELLIP H (06/13/95) 111.74 (m) GP( ) 4 2 AA5751 AA5751.Superseded values are not recommended for survey control. AA5751.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AA5751.See file dsdata.txt to determine how the superseded data were derived. AA5751 AA5751_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ2161739904(NAD 83) AA5751_MARKER: DD = SURVEY DISK AA5751_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AA5751_STAMPING: T.S. 20529 AA5751_MARK LOGO: WSSC AA5751_MAGNETIC: O = OTHER; SEE DESCRIPTION AA5751_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AA5751+STABILITY: SURFACE MOTION AA5751_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AA5751+SATELLITE: SATELLITE OBSERVATIONS - 1994 AA5751 AA5751 HISTORY - Date Condition Report By AA5751 HISTORY - 1994 MONUMENTED WSSC AA5751 HISTORY - 20030821 GOOD GEOCAC AA5751 AA5751 STATION DESCRIPTION AA5751 AA5751'DESCRIBED BY WASH SUBURB SAN COMM 1994 AA5751'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY AA5751'0.5 MI (0.8 KM) NORTH OF THE VILLAGE OF BROOKEVILLE. AA5751' AA5751'TO REACH THE STATION FROM THE INTERSECTION OF GEORGIA AVENUE (S.R. 97) AA5751'AND OLNEY SANDY SPRING ROAD (S.R. 108), GO NORTH 2.0 MI (3.2 KM) ALONG AA5751'GEORGIA AVENUE (S.R. 97) TO A SHARP LEFT BEND AND THE JUNCTION WITH AA5751'MARKET STREET WITHIN THE VILLAGE OF BROOKEVILLE. BEAR LEFT AND GO AA5751'EAST THEN NORTH 0.8 MI (1.3 KM) ALONG GEORGIA AVENUE TO THE STATION ON AA5751'THE RIGHT, NEAR THE ENTRANCE TO THE MEADOWS FARMS NURSERIES. AA5751' AA5751'THE STATION IS A WSSC DISK SET IN TOP OF A CONCRETE MONUMENT WHICH IS AA5751'FLUSH WITH GROUND LEVEL, AND STAMPED "T.S. 20529". THE DISK IS AA5751'LOCATED 4.1 M (13.5 FT) WEST-SOUTHWEST OF THE FENCELINE, 15.8 M (51.8 AA5751'FT) NORTHEAST OF POWER-POLE NO. 18, 7.8 M (25.6 FT) EAST-NORTHEAST OF AA5751'THE CENTERLINE OF THE ROAD, AND 8.2 M (26.9 FT) NORTHWEST OF POWER AA5751'POLE NO. 15. AA5751 AA5751 STATION RECOVERY (2003) AA5751 AA5751'RECOVERY NOTE BY GEOCACHING 2003 (APC) AA5751'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 AA5770 *********************************************************************** AA5770 DESIGNATION - 20593 AA5770 PID - AA5770 AA5770 STATE/COUNTY- MD/MONTGOMERY AA5770 USGS QUAD - POOLESVILLE (1995) AA5770 AA5770 *CURRENT SURVEY CONTROL AA5770 ___________________________________________________________________ AA5770* NAD 83(1991)- 39 09 52.86691(N) 077 29 00.29913(W) ADJUSTED AA5770* NAVD 88 - 130.2 (meters) 427. (feet) GPS OBS AA5770 ___________________________________________________________________ AA5770 X - 1,073,181.599 (meters) COMP AA5770 Y - -4,834,187.373 (meters) COMP AA5770 Z - 4,006,570.750 (meters) COMP AA5770 LAPLACE CORR- 5.48 (seconds) DEFLEC99 AA5770 ELLIP HEIGHT- 97.89 (meters) (08/30/02) GPS OBS AA5770 GEOID HEIGHT- -32.33 (meters) GEOID99 AA5770 AA5770 HORZ ORDER - FIRST AA5770 ELLP ORDER - FOURTH CLASS II AA5770 AA5770.The horizontal coordinates were established by GPS observations AA5770.and adjusted by the National Geodetic Survey in June 1995. AA5770 AA5770.The orthometric height was determined by GPS observations and a AA5770.high-resolution geoid model. AA5770 AA5770.The X, Y, and Z were computed from the position and the ellipsoidal ht. AA5770 AA5770.The Laplace correction was computed from DEFLEC99 derived deflections. AA5770 AA5770.The ellipsoidal height was determined by GPS observations AA5770.and is referenced to NAD 83. AA5770 AA5770.The geoid height was determined by GEOID99. AA5770 AA5770; North East Units Scale Converg. AA5770;SPC MD - 166,398.904 358,222.383 MT 0.99996253 -0 18 12.3 AA5770;SPC MD - 545,927.07 1,175,267.93 sFT 0.99996253 -0 18 12.3 AA5770;UTM 18 - 4,337,989.797 285,442.269 MT 1.00016686 -1 34 08.4 AA5770 AA5770 SUPERSEDED SURVEY CONTROL AA5770 AA5770 ELLIP H (06/13/95) 97.88 (m) GP( ) 4 2 AA5770 AA5770.Superseded values are not recommended for survey control. AA5770.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AA5770.See file dsdata.txt to determine how the superseded data were derived. AA5770 AA5770_U.S. NATIONAL GRID SPATIAL ADDRESS: 18STJ8544237990(NAD 83) AA5770_MARKER: DD = SURVEY DISK AA5770_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AA5770_STAMPING: T.S. 20593 MC AA5770_MARK LOGO: WSSC AA5770_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT AA5770_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AA5770+STABILITY: SURFACE MOTION AA5770_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AA5770+SATELLITE: SATELLITE OBSERVATIONS - 1994 AA5770 AA5770 HISTORY - Date Condition Report By AA5770 HISTORY - 1994 MONUMENTED MSI AA5770 HISTORY - 20030717 GOOD GEOCAC AA5770 AA5770 STATION DESCRIPTION AA5770 AA5770'DESCRIBED BY MEASUREMENT SCIENCE INCORPORATED 1994 (BAC) AA5770'THE STATION IS LOCATED IN MONTGOMERY COUNTY, MARYLAND, APPROXIMATELY AA5770'4.0 MI (6.4 KM) WEST OF THE TOWN OF POOLESVILLE. TO REACH THE STATION AA5770'FROM THE INTERSECTION OF ELGIN ROAD (S.R. 109) AND FISHER AVENUE (S.R. AA5770'107) IN THE TOWN OF POOLESVILLE, GO WEST 3.8 MI (6.1 KM) ALONG FISHER AA5770'AVENUE WHICH BECOMES WHITES FERRY ROAD TO THE INTERSECTION WITH ELMER AA5770'SCHOOL ROAD ON THE LEFT. CONTINUE STRAIGHT WEST 0.2 MI (0.3 KM) ALONG AA5770'WHITES FERRY ROAD TO THE STATION ON THE LEFT NEAR ENTRANCE TO AA5770'STABLES. AA5770' AA5770'THE STATION IS A WSSC DISK SET IN THE TOP OF A CONCRETE MONUMENT WHICH AA5770'IS FLUSH WITH GROUND LEVEL, AND STAMPED "T.S. 20593 MC". THE DISK IS AA5770'LOCATED 6.8 M (22.3 FT) WEST OF POWER POLE NO. 22826, 2.4 M (7.9 FT) AA5770'NORTHEAST OF THE IRON FENCE CORNER, AND 8.3 M (27.2 FT) SOUTH OF THE AA5770'CENTERLINE OF THE ROAD. AA5770 AA5770 STATION RECOVERY (2003) AA5770 AA5770'RECOVERY NOTE BY GEOCACHING 2003 (APC) AA5770'POWER POLE MENTIONED IN 1994 DESCRIPTION IS NO. F 22826 (ADDING AA5770'PREFIX). STATION IS APPROXIMATELY 5 FEET NORTH OF A CARSONITE WITNESS AA5770'POST. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2855 *********************************************************************** JV2855 DESIGNATION - 2162 JV2855 PID - JV2855 JV2855 STATE/COUNTY- MD/MONTGOMERY JV2855 USGS QUAD - ROCKVILLE (1984) JV2855 JV2855 *CURRENT SURVEY CONTROL JV2855 ___________________________________________________________________ JV2855* NAD 83(1986)- 39 00 30. (N) 077 13 16. (W) SCALED JV2855* NAVD 88 - 97.080 (meters) 318.50 (feet) ADJUSTED JV2855 ___________________________________________________________________ JV2855 GEOID HEIGHT- -31.70 (meters) GEOID99 JV2855 DYNAMIC HT - 97.030 (meters) 318.34 (feet) COMP JV2855 MODELED GRAV- 980,108.7 (mgal) NAVD 88 JV2855 JV2855 VERT ORDER - SECOND CLASS 0 JV2855 JV2855.The horizontal coordinates were scaled from a topographic map and have JV2855.an estimated accuracy of +/- 6 seconds. JV2855 JV2855.The orthometric height was determined by differential leveling JV2855.and adjusted by the National Geodetic Survey in June 1991. JV2855 JV2855.The geoid height was determined by GEOID99. JV2855 JV2855.The dynamic height is computed by dividing the NAVD 88 JV2855.geopotential number by the normal gravity value computed on the JV2855.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2855.degrees latitude (g = 980.6199 gals.). JV2855 JV2855.The modeled gravity was interpolated from observed gravity values. JV2855 JV2855; North East Units Estimated Accuracy JV2855;SPC MD - 148,950. 380,850. MT (+/- 180 meters Scaled) JV2855 JV2855 SUPERSEDED SURVEY CONTROL JV2855 JV2855 NGVD 29 (??/??/??) 97.315 (m) 319.27 (f) ADJUSTED 2 0 JV2855 JV2855.Superseded values are not recommended for survey control. JV2855.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2855.See file dsdata.txt to determine how the superseded data were derived. JV2855 JV2855_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ076200(NAD 83) JV2855_MARKER: R = RIVET JV2855_SETTING: 36 = BRIDGE WINGWALL JV2855_MARK LOGO: NONE JV2855_MAGNETIC: O = OTHER; SEE DESCRIPTION JV2855_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV2855_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV2855+SATELLITE: SATELLITE OBSERVATIONS - August 17, 2001 JV2855 JV2855 HISTORY - Date Condition Report By JV2855 HISTORY - UNK MONUMENTED WSSC JV2855 HISTORY - 1966 GOOD WSSC JV2855 HISTORY - 20010817 GOOD MDSHA JV2855 JV2855 STATION DESCRIPTION JV2855 JV2855'DESCRIBED BY WASH SUBURB SAN COMM 1966 JV2855'1 MI SW FROM POTOMAC. JV2855'0.95 MI. S.W. ALONG STATE HWY. 189 (FALLS ROAD) FROM ITS JV2855'INTERSECTION WITH STATE HWY. 190 (RIVER ROAD) AT POTOMAC IN THE JV2855'E. CORNER OF THE BRIDGE OVER A SMALL STREAM. JV2855 JV2855 STATION RECOVERY (2001) JV2855 JV2855'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV2855'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV1063 *********************************************************************** JV1063 DESIGNATION - 2222 JV1063 PID - JV1063 JV1063 STATE/COUNTY- MD/MONTGOMERY JV1063 USGS QUAD - CLARKSVILLE (1979) JV1063 JV1063 *CURRENT SURVEY CONTROL JV1063 ___________________________________________________________________ JV1063* NAD 83(1986)- 39 08 33. (N) 076 59 58. (W) SCALED JV1063* NAVD 88 - 158.24 (+/-2cm) 519.2 (feet) VERTCON JV1063 ___________________________________________________________________ JV1063 GEOID HEIGHT- -31.92 (meters) GEOID99 JV1063 JV1063 VERT ORDER - SECOND CLASS 0 (See Below) JV1063 JV1063.The horizontal coordinates were scaled from a topographic map and have JV1063.an estimated accuracy of +/- 6 seconds. JV1063 JV1063.The NAVD 88 height was computed by applying the VERTCON shift value to JV1063.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV1063.The vertical order pertains to the superseded datum. JV1063 JV1063.The geoid height was determined by GEOID99. JV1063 JV1063; North East Units Estimated Accuracy JV1063;SPC MD - 163,830. 400,050. MT (+/- 180 meters Scaled) JV1063 JV1063 SUPERSEDED SURVEY CONTROL JV1063 JV1063 NGVD 29 (??/??/??) 158.452 (m) 519.85 (f) ADJUSTED 2 0 JV1063 JV1063.Superseded values are not recommended for survey control. JV1063.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV1063.See file dsdata.txt to determine how the superseded data were derived. JV1063 JV1063_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ272344(NAD 83) JV1063_MARKER: Q = CHISELED SQUARE JV1063_SETTING: 32 = CULVERT HEADWALL JV1063_MARK LOGO: NONE JV1063_MAGNETIC: O = OTHER; SEE DESCRIPTION JV1063_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV1063+STABILITY: SURFACE MOTION JV1063_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV1063+SATELLITE: SATELLITE OBSERVATIONS - August 28, 2001 JV1063 JV1063 HISTORY - Date Condition Report By JV1063 HISTORY - UNK MONUMENTED WSSC JV1063 HISTORY - 1939 GOOD WSSC JV1063 HISTORY - 20010828 GOOD MDSHA JV1063 JV1063 STATION DESCRIPTION JV1063 JV1063'DESCRIBED BY WASH SUBURB SAN COMM 1939 JV1063'0.6 MI N FROM EDNOR. JV1063'ON COLESVILLE ROAD, ABOUT 350 FEET NORTH OF TUCKER LANE, OPPOSITE JV1063'THE GRAHAM RESIDENCE, ON THE EAST SIDE OF THE ROAD, AT A CONCRETE JV1063'CULVERT UNDER THE ROAD, AND ON THE TOP OF THE EAST HEADWALL. JV1063 JV1063 STATION RECOVERY (2001) JV1063 JV1063'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV1063'THE STATION IS LOCATED ABOUT 0.8 MI (1.29 KM) SOUTHEAST OF ASHTON, 0.6 JV1063'MI (0.97 KM) NORTH OF EDNOR. TO REACH THE STATION FROM THE JV1063'INTERSECTION OF STATE HIGHWAY 650 AND STATE HIGHWAY 108 IN ASHTON, GO JV1063'SOUTHEAST ALONG STATE HIGHWAY 650 FOR 0.8 MI (1.29 KM) TO THE STATION JV1063'ON THE LEFT. THE STATION IS A CHISELED SQUARE IN THE TOP OF AND ABOUT JV1063'IN THE MIDDLE OF A CONCRETE HEADWALL, ON THE EAST SIDE OF THE ROAD, JV1063'FOR A CONCRETE CULVERT RUNNING UNDER THE HIGHWAY. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2669 *********************************************************************** JV2669 DESIGNATION - 484 JV2669 PID - JV2669 JV2669 STATE/COUNTY- MD/MONTGOMERY JV2669 USGS QUAD - SANDY SPRING (1988) JV2669 JV2669 *CURRENT SURVEY CONTROL JV2669 ___________________________________________________________________ JV2669* NAD 83(1986)- 39 08 57. (N) 077 01 38. (W) SCALED JV2669* NAVD 88 - 147.27 (+/-2cm) 483.2 (feet) VERTCON JV2669 ___________________________________________________________________ JV2669 GEOID HEIGHT- -31.87 (meters) GEOID99 JV2669 JV2669 VERT ORDER - SECOND CLASS 0 (See Below) JV2669 JV2669.The horizontal coordinates were scaled from a topographic map and have JV2669.an estimated accuracy of +/- 6 seconds. JV2669 JV2669.The NAVD 88 height was computed by applying the VERTCON shift value to JV2669.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV2669.The vertical order pertains to the superseded datum. JV2669 JV2669.The geoid height was determined by GEOID99. JV2669 JV2669; North East Units Estimated Accuracy JV2669;SPC MD - 164,570. 397,650. MT (+/- 180 meters Scaled) JV2669 JV2669 SUPERSEDED SURVEY CONTROL JV2669 JV2669 NGVD 29 (??/??/??) 147.485 (m) 483.87 (f) ADJUSTED 2 0 JV2669 JV2669.Superseded values are not recommended for survey control. JV2669.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2669.See file dsdata.txt to determine how the superseded data were derived. JV2669 JV2669_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ248352(NAD 83) JV2669_MARKER: DB = BENCH MARK DISK JV2669_SETTING: 31 = STEP JV2669_STAMPING: 484 JV2669_MARK LOGO: USGS JV2669_MAGNETIC: O = OTHER; SEE DESCRIPTION JV2669_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV2669_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV2669+SATELLITE: SATELLITE OBSERVATIONS - October 26, 2001 JV2669 JV2669 HISTORY - Date Condition Report By JV2669 HISTORY - UNK MONUMENTED USGS JV2669 HISTORY - 1944 GOOD WSSC JV2669 HISTORY - 1985 GOOD USPSQD JV2669 HISTORY - 19900117 GOOD WSSC JV2669 HISTORY - 20010828 GOOD MDSHA JV2669 HISTORY - 20011026 GOOD USPSQD JV2669 JV2669 STATION DESCRIPTION JV2669 JV2669'DESCRIBED BY WASH SUBURB SAN COMM 1944 JV2669'AT SANDY SPRING. JV2669'ON STATE HIGHWAY 108, ON THE SOUTH SIDE OF THE HIGHWAY, AT JV2669'THE MUTUAL FIRE INSURANCE CO. BUILDING, AT THE FRONT OF THE JV2669'BUILDING, AND IN THE EAST END OF THE STEP. JV2669 JV2669 STATION RECOVERY (1985) JV2669 JV2669'RECOVERY NOTE BY US POWER SQUADRON 1985 JV2669'REWRITE DESC. AS FOLLOW: ON STATE HIGHWAY 108, ON SOUTH SIDE OF THE JV2669'HIGHWAY, AT THE INTERSECTION OF MEETING HOUSE ROAD. ON THE SANDY JV2669'SPRING NATIONAL BANK ADMINISTRATIVE OFFICES BUILDING (GRANITE DOOR JV2669'LINTEL READS MUTUAL FIRE INSURANCE COMPANY) AT THE FRONT OF THE JV2669'BUILDING, AND IN THE EAST END OF THE STEP. JV2669 JV2669 STATION RECOVERY (1990) JV2669 JV2669'RECOVERY NOTE BY WASH SUBURB SAN COMM 1990 JV2669'RECOVERED IN GOOD CONDITION. JV2669 JV2669 STATION RECOVERY (2001) JV2669 JV2669'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV2669'RECOVERED AS DESCRIBED. JV2669 JV2669 STATION RECOVERY (2001) JV2669 JV2669'RECOVERY NOTE BY US POWER SQUADRON 2001 (BAS) JV2669' JV2669' 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV6690 *********************************************************************** JV6690 CBN - This is a Cooperative Base Network Control Station. JV6690 DESIGNATION - 4978 JV6690 PID - JV6690 JV6690 STATE/COUNTY- MD/MONTGOMERY JV6690 USGS QUAD - SANDY SPRING (1988) JV6690 JV6690 *CURRENT SURVEY CONTROL JV6690 ___________________________________________________________________ JV6690* NAD 83(1991)- 39 08 58.53631(N) 077 01 30.25542(W) ADJUSTED JV6690* NAVD 88 - 147.35 (meters) 483.4 (feet) LEVELING JV6690 ___________________________________________________________________ JV6690 X - 1,112,059.217 (meters) COMP JV6690 Y - -4,826,492.055 (meters) COMP JV6690 Z - 4,005,282.696 (meters) COMP JV6690 LAPLACE CORR- -3.52 (seconds) DEFLEC99 JV6690 ELLIP HEIGHT- 115.56 (meters) (08/09/02) GPS OBS JV6690 GEOID HEIGHT- -31.87 (meters) GEOID99 JV6690 JV6690 HORZ ORDER - B JV6690 VERT ORDER - THIRD ? JV6690 ELLP ORDER - FOURTH CLASS II JV6690 JV6690.The horizontal coordinates were established by GPS observations JV6690.and adjusted by the National Geodetic Survey in October 1993. JV6690 JV6690.The orthometric height was determined by differential leveling. JV6690.The vertical network tie was performed by a horz. field party for horz. JV6690.obs reductions. Reset procedures were used to establish the elevation. JV6690 JV6690.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV6690 JV6690.The Laplace correction was computed from DEFLEC99 derived deflections. JV6690 JV6690.The ellipsoidal height was determined by GPS observations JV6690.and is referenced to NAD 83. JV6690 JV6690.The geoid height was determined by GEOID99. JV6690 JV6690; North East Units Scale Converg. JV6690;SPC MD - 164,613.176 397,832.858 MT 0.99996123 -0 00 56.6 JV6690;SPC MD - 540,068.39 1,305,223.30 sFT 0.99996123 -0 00 56.6 JV6690;UTM 18 - 4,335,330.215 325,007.926 MT 0.99997706 -1 16 43.8 JV6690 JV6690 SUPERSEDED SURVEY CONTROL JV6690 JV6690 ELLIP H (10/21/93) 115.49 (m) GP( ) 2 2 JV6690 NAD 83(1991)- 39 08 58.53606(N) 077 01 30.25477(W) AD( ) 1 JV6690 NAD 83(1991)- 39 08 58.53466(N) 077 01 30.25507(W) AD( ) 1 JV6690 ELLIP H (01/27/92) 115.44 (m) GP( ) 4 1 JV6690 NAD 83(1986)- 39 08 58.53392(N) 077 01 30.26499(W) AD( ) 1 JV6690 NGVD 29 (03/05/91) 147.61 (m) 484.3 (f) LEVELING 3 JV6690 JV6690.Superseded values are not recommended for survey control. JV6690.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV6690.See file dsdata.txt to determine how the superseded data were derived. JV6690 JV6690_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ2500835330(NAD 83) JV6690_MARKER: DD = SURVEY DISK JV6690_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV6690_STAMPING: 4978 19800 JV6690_MARK LOGO: WSSC JV6690_MAGNETIC: O = OTHER; SEE DESCRIPTION JV6690_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV6690+STABILITY: SURFACE MOTION JV6690_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV6690+SATELLITE: SATELLITE OBSERVATIONS - November 16, 2001 JV6690 JV6690 HISTORY - Date Condition Report By JV6690 HISTORY - 1989 MONUMENTED WSSC JV6690 HISTORY - 19901025 GOOD MD-027 JV6690 HISTORY - 19910819 GOOD JV6690 HISTORY - 19921026 GOOD NGS JV6690 HISTORY - 20010403 GOOD DMW JV6690 HISTORY - 20011116 GOOD DMW JV6690 HISTORY - 20020125 GOOD MDSHA JV6690 JV6690 STATION DESCRIPTION JV6690 JV6690'DESCRIBED BY WASH SUBURB SAN COMM 1989 JV6690'THE STATION IS LOCATED ABOUT 1.0 KM (0.6 MI) WEST OF ASHTON, 4.9 KM JV6690'(3.0 MI) SOUTH OF BRIGHTON AND 3.7 KM (2.3 MI) EAST OF OLNEY. TO JV6690'REACH THE STATION FROM THE INTERSECTION OF STATE HWY RTE 108 JV6690'(OLNEY-SANDY SPRING RD) AND RTE 650 (NEW HAMPSHIRE AVE) IN ASHTON GO JV6690'WEST 0.95 KM (0.59 MI) ON RTE 108 TO SKY MEADOW WAY. TURN RIGHT AND JV6690'GO NORTH 23 M (75.5 FT) TO THE STATION ON THE RIGHT. THE STATION IS JV6690'15 M (49.2 FT) ENE OF SKY MEADOW WAY ON TOP OF A SMALL JV6690'HILL. OWNERSHIP--COUNTY ROAD RIGHT-OF-WAY. THE STATION MARK IS A JV6690'STANDARD WSSC BRASS DISK STAMPED 4978 19800 SET IN THE TOP OF A JV6690'ROUND CONCRETE MONUMENT 0.2 M (0.7 FT) IN DIAMETER SET FLUSH IN A JV6690'GRASS KNOLL. IT IS 7.63 M (25.03 FT) EAST OF A REFERENCE NAIL IN THE JV6690'NORTH SIDE OF A 0.05 M (0.16 FT) OAK TREE, 10.4 M (34.1 FT) NNE OF A JV6690'REFERENCE NAIL IN THE WEST SIDE OF A 0.50 M (1.64 FT) CEDAR TREE, JV6690'17.2 M (56.4 FT) WEST OF THE SW CORNER OF HOUSE NUMBER 617 AND 21.23 JV6690'M (69.65 FT) SW OF THE NW CORNER OF HOUSE NUMBER 617. NO REFERENCES JV6690'WERE ESTABLISHED AT THIS TIME. NO STATIONS SERVE AS AZIMUTH MARKS FOR JV6690'THIS STAION AT THIS TIME. JV6690 JV6690 STATION RECOVERY (1990) JV6690 JV6690'RECOVERY NOTE BY HOWARD COUNTY MARYLAND 1990 JV6690'RECOVERED IN GOOD CONDITION. JV6690 JV6690 STATION RECOVERY (1991) JV6690 JV6690'RECOVERED 1991 JV6690'RECOVERED IN GOOD CONDITION. JV6690 JV6690 STATION RECOVERY (1992) JV6690 JV6690'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1992 JV6690'THE STATION IS LOCATED ABOUT 4.9 KM (3.05 MI) SOUTH OF BRIGHTON, 3.7 JV6690'KM (2.30 MI) EAST OF OLNEY AND 1.0 KM (0.60 MI) WEST OF ASHTON. JV6690'OWNERSHIP--STATE HIGHWAY RIGHT-OF-WAY. JV6690'TO REACH THE STATION FROM THE INTERSECTION OF STATE HIGHWAY ROUTE 108 JV6690'(OLNEY-SANDY SPRING RD) AND ROUTE 650 (NEW HAMPSHIRE AVE) IN ASHTON, JV6690'GO WEST 0.95 KM (0.60 MI) ON ROUTE 108 TO SKY MEADOW WAY. TURN RIGHT JV6690'AND GO NORTH 23 M (75.5 FT) TO THE STATION ON THE RIGHT. THE STATION JV6690'IS 15 M (49.2 FT) EAST-NORTHEAST OF SKY MEADOW WAY ON TOP OF A SMALL JV6690'HILL. JV6690'THE STATION IS A STANDARD WSSC BRASS DISK SET IN THE TOP OF A ROUND JV6690'CONCRETE MONUMENT. LOCATED 21.23 M (69.65 FT) SOUTHWEST OF THE JV6690'NORTHWEST CORNER OF HOUSE NUMBER 617, 17.2 M (56.4 FT) WEST OF THE JV6690'SOUTHWEST CORNER OF HOUSE NUMBER 617, 10.4 M (34.1 FT) JV6690'NORTH-NORTHEAST OF A REFERENCE NAIL IN THE WEST SIDE OF A 0.5 M JV6690'(1.6 FT) CEDAR TREE AND 7.63 M (25.03 FT) EAST OF A REFERENCE NAIL IN JV6690'THE NORTH SIDE OF A 0.05 M (0.16 FT) OAK TREE. JV6690 JV6690 STATION RECOVERY (2001) JV6690 JV6690'RECOVERY NOTE BY DAFT MCCUNE WALKER INCORPORATED 2001 (DMM) JV6690'MARK IS UNDERCOVER. MAY NOT BE SUITABLE FOR GPS UNDER FULL COVER IN JV6690'LATE SPRING/SUMMER. JV6690 JV6690 STATION RECOVERY (2001) JV6690 JV6690'RECOVERY NOTE BY DAFT MCCUNE WALKER INCORPORATED 2001 (DMM) JV6690'RECOVERY NOTE JV6690'STATION FOUND IN GOOD CONDITION 11/2001 JV6690 JV6690 STATION RECOVERY (2002) JV6690 JV6690'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV6690'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2701 *********************************************************************** JV2701 DESIGNATION - 566 JV2701 PID - JV2701 JV2701 STATE/COUNTY- MD/MONTGOMERY JV2701 USGS QUAD - ROCKVILLE (1984) JV2701 JV2701 *CURRENT SURVEY CONTROL JV2701 ___________________________________________________________________ JV2701* NAD 83(1986)- 39 04 57. (N) 077 08 40. (W) SCALED JV2701* NAVD 88 - 131.127 (meters) 430.21 (feet) ADJUSTED JV2701 ___________________________________________________________________ JV2701 GEOID HEIGHT- -31.71 (meters) GEOID99 JV2701 DYNAMIC HT - 131.058 (meters) 429.98 (feet) COMP JV2701 MODELED GRAV- 980,099.6 (mgal) NAVD 88 JV2701 JV2701 VERT ORDER - FIRST CLASS II JV2701 JV2701.The horizontal coordinates were scaled from a topographic map and have JV2701.an estimated accuracy of +/- 6 seconds. JV2701 JV2701.The orthometric height was determined by differential leveling JV2701.and adjusted by the National Geodetic Survey in June 1991. JV2701 JV2701.The geoid height was determined by GEOID99. JV2701 JV2701.The dynamic height is computed by dividing the NAVD 88 JV2701.geopotential number by the normal gravity value computed on the JV2701.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2701.degrees latitude (g = 980.6199 gals.). JV2701 JV2701.The modeled gravity was interpolated from observed gravity values. JV2701 JV2701; North East Units Estimated Accuracy JV2701;SPC MD - 157,180. 387,500. MT (+/- 180 meters Scaled) JV2701 JV2701 SUPERSEDED SURVEY CONTROL JV2701 JV2701 NGVD 29 (??/??/??) 131.344 (m) 430.92 (f) ADJUSTED 1 2 JV2701 JV2701.Superseded values are not recommended for survey control. JV2701.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2701.See file dsdata.txt to determine how the superseded data were derived. JV2701 JV2701_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ145281(NAD 83) JV2701_MARKER: Z = SEE DESCRIPTION JV2701_SETTING: 0 = UNSPECIFIED SETTING JV2701_STAMPING: 566 JV2701_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY JV2701 JV2701 HISTORY - Date Condition Report By JV2701 HISTORY - UNK MONUMENTED WSSC JV2701 HISTORY - 1966 GOOD CGS JV2701 HISTORY - 20020125 MARK NOT FOUND MDSHA JV2701 JV2701 STATION DESCRIPTION JV2701 JV2701'DESCRIBED BY COAST AND GEODETIC SURVEY 1966 JV2701'AT ROCKVILLE. JV2701'AT ROCKVILLE, JUST SOUTH OF THE BALTIMORE AND OHIO RAILROAD JV2701'STATION, AT THE FORMER LOCATION OF THE OLD BALTIMORE ROAD JV2701'CROSSING, EAST OF TRACKS AND IN ABOUT THE CENTER OF THE TOP OF A JV2701'SMALL HEADWALL (THE HEADWALL HAS A LARGE CRACK ABOUT 1/2 FOOT JV2701'FROM THE MARK). BRASS SCREW AND WASHER. JV2701 JV2701 STATION RECOVERY (2002) JV2701 JV2701'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV2701'THE STATION WAS SEARCHED FOR AND NOT RECOVERED. A 2 FOOR SQUARED JV2701'SECTION OF WHAT APPEARS TO BE THE HEADWALL WAS RECOVERED LAYING JV2701'SIDEWAYS AT THE DESCRIBED LOCATION. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV7208 *********************************************************************** JV7208 DESIGNATION - DEBBIE JV7208 PID - JV7208 JV7208 STATE/COUNTY- MD/MONTGOMERY JV7208 USGS QUAD - POOLESVILLE (1995) JV7208 JV7208 *CURRENT SURVEY CONTROL JV7208 ___________________________________________________________________ JV7208* NAD 83(1991)- 39 13 28.81526(N) 077 26 13.75287(W) ADJUSTED JV7208* NAVD 88 - 101.6 (meters) 333. (feet) GPS OBS JV7208 ___________________________________________________________________ JV7208 X - 1,076,164.314 (meters) COMP JV7208 Y - -4,829,189.747 (meters) COMP JV7208 Z - 4,011,713.891 (meters) COMP JV7208 LAPLACE CORR- 6.62 (seconds) DEFLEC99 JV7208 ELLIP HEIGHT- 69.24 (meters) (08/30/02) GPS OBS JV7208 GEOID HEIGHT- -32.33 (meters) GEOID99 JV7208 JV7208 HORZ ORDER - FIRST JV7208 ELLP ORDER - FOURTH CLASS II JV7208 JV7208.The horizontal coordinates were established by GPS observations JV7208.and adjusted by the National Geodetic Survey in February 1994. JV7208 JV7208.The orthometric height was determined by GPS observations and a JV7208.high-resolution geoid model. JV7208 JV7208.The X, Y, and Z were computed from the position and the ellipsoidal ht. JV7208 JV7208.The Laplace correction was computed from DEFLEC99 derived deflections. JV7208 JV7208.The ellipsoidal height was determined by GPS observations JV7208.and is referenced to NAD 83. JV7208 JV7208.The geoid height was determined by GEOID99. JV7208 JV7208; North East Units Scale Converg. JV7208;SPC MD - 173,037.997 362,252.350 MT 0.99996834 -0 16 27.7 JV7208;SPC MD - 567,708.83 1,188,489.58 sFT 0.99996834 -0 16 27.7 JV7208;SPC VA N - 2,173,474.592 3,591,777.042 MT 1.00000447 +0 39 48.0 JV7208;UTM 18 - 4,344,539.443 289,618.787 MT 1.00014500 -1 32 30.2 JV7208 JV7208 SUPERSEDED SURVEY CONTROL JV7208 JV7208 ELLIP H (02/09/94) 69.18 (m) GP( ) 4 1 JV7208 JV7208.Superseded values are not recommended for survey control. JV7208.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV7208.See file dsdata.txt to determine how the superseded data were derived. JV7208 JV7208_U.S. NATIONAL GRID SPATIAL ADDRESS: 18STJ8961944539(NAD 83) JV7208_MARKER: DD = SURVEY DISK JV7208_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV7208_STAMPING: DEBBIE 1993 JV7208_MARK LOGO: MD-021 JV7208_MAGNETIC: N = NO MAGNETIC MATERIAL JV7208_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV7208+STABILITY: SURFACE MOTION JV7208_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR JV7208+SATELLITE: SATELLITE OBSERVATIONS - 1993 JV7208 JV7208 HISTORY - Date Condition Report By JV7208 HISTORY - 1993 MONUMENTED GREOMA JV7208 HISTORY - 20030808 GOOD GEOCAC JV7208 JV7208 STATION DESCRIPTION JV7208 JV7208'DESCRIBED BY GREENHORNE-OMARA 1993 JV7208'PROCEED NORTHWEST FROM THE MD RTE 28 RAILROAD CROSSING IN DICKERSON, JV7208'MD 0.3 MILES (0.5 KM) TO THE INTERSECTION OF RTE 28 (DICKERSON ROAD) JV7208'AND MOUTH OF MONOCACY ROAD. TURN LEFT AND PROCEED WEST ON MOUTH OF JV7208'MONOCACY ROAD 0.6 MILES (1.0 KM) TO STATION ON LEFT. STATION IS 0.17 JV7208'MILES (0.27 KM) EAST OF RAILROAD TRACKS, 14 FEET (4.3 M) SOUTH OF JV7208'CENTERLINE OF MOUTH OF MONOCACY ROAD, 30 FEET (9.1 M) NORTHEASTERLY JV7208'OF A GAS PIPELINE WARNING SIGN AND 77 FEET (23.5 M) SOUTHWEST OF A JV7208'POWER POLE MARKED CP M-14. STATION IS BRASS DISK SET IN 8 INCH JV7208'CONCRETE MONUMENT SET FLUSH WITH THE GROUND. JV7208 JV7208 STATION RECOVERY (2003) JV7208 JV7208'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV7208'RECOVERED IN GOOD CONDITION. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV4545 *********************************************************************** JV4545 DESIGNATION - ELMER JV4545 PID - JV4545 JV4545 STATE/COUNTY- MD/MONTGOMERY JV4545 USGS QUAD - POOLESVILLE (1995) JV4545 JV4545 *CURRENT SURVEY CONTROL JV4545 ___________________________________________________________________ JV4545* NAD 83(1991)- 39 07 39.12960(N) 077 29 03.61062(W) ADJUSTED JV4545* NAVD 88 - 92.92 (+/-2cm) 304.9 (feet) VERTCON JV4545 ___________________________________________________________________ JV4545 LAPLACE CORR- 5.10 (seconds) DEFLEC99 JV4545 GEOID HEIGHT- -32.26 (meters) GEOID99 JV4545 JV4545 HORZ ORDER - FIRST JV4545 VERT ORDER - THIRD ? (See Below) JV4545 JV4545.The horizontal coordinates were established by classical geodetic methods JV4545.and adjusted by the National Geodetic Survey in November 1994. JV4545 JV4545.The NAVD 88 height was computed by applying the VERTCON shift value to JV4545.the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) JV4545.The vertical order pertains to the superseded datum. JV4545 JV4545.The Laplace correction was computed from DEFLEC99 derived deflections. JV4545 JV4545.The geoid height was determined by GEOID99. JV4545 JV4545; North East Units Scale Converg. JV4545;SPC MD - 162,275.298 358,121.008 MT 0.99995947 -0 18 14.3 JV4545;SPC MD - 532,398.21 1,174,935.34 sFT 0.99995947 -0 18 14.3 JV4545;UTM 18 - 4,333,868.584 285,249.845 MT 1.00016789 -1 34 06.0 JV4545 JV4545: Primary Azimuth Mark Grid Az JV4545:SPC MD - ELMER AZ MK 351 32 34.2 JV4545:UTM 18 - ELMER AZ MK 352 48 25.9 JV4545 JV4545|---------------------------------------------------------------------| JV4545| PID Reference Object Distance Geod. Az | JV4545| dddmmss.s | JV4545| JV4542 DICKERSON PEPCO W STACK APPROX. 9.2 KM 0105038.7 | JV4545| JV4541 DICKERSON PEPCO E STACK APPROX. 9.3 KM 0105558.5 | JV4545| JV4546 ELMER ANIMAL CTR TANK 462.189 METERS 0932344.2 | JV4545| CJ9740 ELMER RM 1 29.313 METERS 17315 | JV4545| CJ9741 ELMER RM 2 17.209 METERS 26801 | JV4545| CJ9739 ELMER AZ MK 3511419.9 | JV4545|---------------------------------------------------------------------| JV4545 JV4545 SUPERSEDED SURVEY CONTROL JV4545 JV4545 NAD 83(1991)- 39 07 39.13051(N) 077 29 03.61152(W) AD( ) 1 JV4545 NAD 83(1986)- 39 07 39.12910(N) 077 29 03.62092(W) AD( ) 1 JV4545 NAD 27 - 39 07 38.74631(N) 077 29 04.65142(W) AD( ) 1 JV4545 NGVD 29 (07/19/86) 93.14 (m) 305.6 (f) LEVELING 3 JV4545 JV4545.Superseded values are not recommended for survey control. JV4545.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV4545.See file dsdata.txt to determine how the superseded data were derived. JV4545 JV4545_U.S. NATIONAL GRID SPATIAL ADDRESS: 18STJ8525033869(NAD 83) JV4545_MARKER: DS = TRIANGULATION STATION DISK JV4545_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT JV4545_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV4545+SATELLITE: SATELLITE OBSERVATIONS - July 17, 2003 JV4545 JV4545 HISTORY - Date Condition Report By JV4545 HISTORY - 1958 MONUMENTED CGS JV4545 HISTORY - 1969 GOOD CGS JV4545 HISTORY - 20030717 GOOD GEOCAC JV4545 JV4545 STATION DESCRIPTION JV4545 JV4545'DESCRIBED BY COAST AND GEODETIC SURVEY 1958 (WER) JV4545'THE STATION IS APPROXIMATELY 4.0 MILES SOUTHWEST OF POOLESVILLE, JV4545'ABOUT 3.0 MILES SOUTHEAST OF WHITES FERRY AND ABOUT 1.0 MILE NORTH OF JV4545'THE POTOMAC RIVER, AT THE ENTRANCE TO THE RED OAKS FARM AND ON THE JV4545'PROPERTY OF MR. EDMUND G. WARTHER. JV4545' JV4545'TO REACH THE STATION FROM THE POST OFFICE IN POOLESVILLE, GO WEST ON JV4545'STATE HIGHWAY 107 FOR 4.2 MILES TO A SIDE ROAD LEFT, (ELMER SCHOOL JV4545'ROAD) TURN LEFT, SOUTH ON ELMER SCHOOL ROAD AND GO 2.6 MILES TO JV4545'FARM LANE (RED OAK FARM) AND THE STATION ON THE WEST SIDE OF ROAD. JV4545' JV4545'STATION MARKS ARE STANDARD DISKS STAMPED ELMER 1958. THE SURFACE JV4545'DISK IS SET IN A SQUARE CONCRETE POST WHICH PROJECTS 4 INCHES. IT IS JV4545'38 FEET WEST OF THE CENTER OF ELMER SCHOOL ROAD, 19 FEET SOUTH OF JV4545'THE CENTER OF FARM LANE ROAD, 6 INCHES NORTH OF AN EAST-WEST JV4545'FENCE LINE AND 57 FEET SOUTHWEST OF A POWER LINE POLE NUMBER 98. JV4545'A STANDARD WITNESS POST WAS SET 3 FEET EAST OF THE MARK. THE JV4545'UNDERGROUND DISK IS SET IN AN IRREGULAR MASS OF CONCRETE 32 INCHES JV4545'BELOW THE SURFACE OF THE GROUND. JV4545' JV4545'REFERENCE MARK NO. 1, A STANDARD DISK STAMPED ELMER NO 1 1958, IS SET JV4545'IN A SQUARE CONCRETE POST WHICH PROJECTS 1 INCH. IT IS 5 FEET WEST JV4545'OF FENCE, 23 FEET WEST OF THE CENTER OF ELMER SCHOOL ROAD, 84 FEET JV4545'NORTH-NORTHWEST OF A POWER LINE POLE AND 95 FEET SOUTH OF A FENCE JV4545'CORNER. JV4545' JV4545'REFERENCE MARK NO. 2, A STANDARD DISK STAMPED ELMER NO 2 1958, IS SET JV4545'IN A SQUARE CONCRETE POST WHICH PROJECTS 3 INCHES. IT IS 2.5 FEET JV4545'NORTH OF EAST-WEST FENCE LINE, 4 FEET EAST-SOUTHEAST OF A 18 INCH JV4545'TREE AND 14 FEET SOUTH OF THE CENTER OF FARM LANE. JV4545' JV4545'AZIMUTH MARK, A STANDARD DISK STAMPED ELMER 1958, IS SET IN A SQUARE JV4545'CONCRETE POST WHICH PROJECTS 3 INCHES. IT IS 6 INCHES SOUTH OF JV4545'FENCE LINE, 11 FEET NORTH OF THE CENTER OF ROAD, 39 FEET NORTHEAST JV4545'OF A POWER LINE POLE AND 74 FEET WEST OF A TELEPHONE LINE POLE. JV4545' JV4545'TO REACH THE AZIMUTH MARK FROM THE STATION, GO NORTH ON ELMER SCHOOL JV4545'ROAD FOR 0.7 MILE TO A FARM LANE ON LEFT, TURN LEFT AND GO WEST FOR JV4545'0.15 MILE TO THE AZIMUTH MARK ON THE RIGHT. JV4545' JV4545'HEIGHT OF LIGHT ABOVE STATION MARK 26 METERS. JV4545 JV4545 STATION RECOVERY (1969) JV4545 JV4545'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1969 (JBJ) JV4545'THE STATION MARK, REFERENCE MARKS 1, 2, AND THE AZIMUTH MARK WERE JV4545'RECOVERED AS DESCRIBED IN 1958 BY W.E. RANDALL. JV4545' JV4545'AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--4 MILES SOUTHWEST JV4545'OF POOLESVILLE. JV4545 JV4545 STATION RECOVERY (2003) JV4545 JV4545'RECOVERY NOTE BY GEOCACHING 2003 (APC) JV4545'DID NOT SEARCH FOR REFERENCE OR AZIMUTH MARKS 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV3846 *********************************************************************** JV3846 DESIGNATION - F 147 JV3846 PID - JV3846 JV3846 STATE/COUNTY- MD/MONTGOMERY JV3846 USGS QUAD - ROCKVILLE (1984) JV3846 JV3846 *CURRENT SURVEY CONTROL JV3846 ___________________________________________________________________ JV3846* NAD 83(1986)- 39 03 57. (N) 077 07 39. (W) SCALED JV3846* NAVD 88 - 118.089 (meters) 387.43 (feet) ADJUSTED JV3846 ___________________________________________________________________ JV3846 GEOID HEIGHT- -31.74 (meters) GEOID99 JV3846 DYNAMIC HT - 118.027 (meters) 387.23 (feet) COMP JV3846 MODELED GRAV- 980,098.4 (mgal) NAVD 88 JV3846 JV3846 VERT ORDER - FIRST CLASS II JV3846 JV3846.The horizontal coordinates were scaled from a topographic map and have JV3846.an estimated accuracy of +/- 6 seconds. JV3846 JV3846.The orthometric height was determined by differential leveling JV3846.and adjusted by the National Geodetic Survey in June 1991. JV3846 JV3846.The geoid height was determined by GEOID99. JV3846 JV3846.The dynamic height is computed by dividing the NAVD 88 JV3846.geopotential number by the normal gravity value computed on the JV3846.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV3846.degrees latitude (g = 980.6199 gals.). JV3846 JV3846.The modeled gravity was interpolated from observed gravity values. JV3846 JV3846; North East Units Estimated Accuracy JV3846;SPC MD - 155,320. 388,970. MT (+/- 180 meters Scaled) JV3846 JV3846 SUPERSEDED SURVEY CONTROL JV3846 JV3846.No superseded survey control is available for this station. JV3846 JV3846_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ159262(NAD 83) JV3846_MARKER: DB = BENCH MARK DISK JV3846_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) JV3846_STAMPING: F 147 1979 JV3846_PROJECTION: RECESSED 10 CENTIMETERS JV3846_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV3846_ROD/PIPE-DEPTH: 4.57 meters JV3846 JV3846 HISTORY - Date Condition Report By JV3846 HISTORY - 1979 MONUMENTED NGS JV3846 HISTORY - 20020125 MARK NOT FOUND MDSHA JV3846 JV3846 STATION DESCRIPTION JV3846 JV3846'DESCRIBED BY NATIONAL GEODETIC SURVEY 1979 JV3846'IN ROCKVILLE. JV3846'IN ROCKVILLE, 1.2 MILES NORTHWEST ALONG STATE ROUTE 355, ROCKVILLE JV3846'PIKE FROM THE JUNCTION OF MONTROSE ROAD TO THE MARK ON THE RIGHT, JV3846'97 FEET SOUTHWEST OF THE SOUTHWEST CORNER OF KIMELS STUDIO OF INTERIOR JV3846'BUILDING, 17.5 FEET EAST OF THE EAST CURB OF ROUTE 355, AND 1.5 FEET JV3846'SOUTH OF POWER POLE 763449-5425. JV3846'THE MARK IS ABOVE LEVEL WITH HIGHWAY. JV3846 JV3846 STATION RECOVERY (2002) JV3846 JV3846'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV3846'THE STATION WAS SEARCHED FOR AND NOT RECOVERED. APPEARS THE STATION JV3846'HAS BEEN DESTROYED BY ROAD IMPROVEMENTS. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2178 *********************************************************************** JV2178 DESIGNATION - F 34 JV2178 PID - JV2178 JV2178 STATE/COUNTY- MD/MONTGOMERY JV2178 USGS QUAD - ROCKVILLE (1984) JV2178 JV2178 *CURRENT SURVEY CONTROL JV2178 ___________________________________________________________________ JV2178* NAD 83(1986)- 39 04 50. (N) 077 08 30. (W) SCALED JV2178* NAVD 88 - 130.185 (meters) 427.12 (feet) ADJUSTED JV2178 ___________________________________________________________________ JV2178 GEOID HEIGHT- -31.72 (meters) GEOID99 JV2178 DYNAMIC HT - 130.117 (meters) 426.89 (feet) COMP JV2178 MODELED GRAV- 980,099.0 (mgal) NAVD 88 JV2178 JV2178 VERT ORDER - FIRST CLASS II JV2178 JV2178.The horizontal coordinates were scaled from a topographic map and have JV2178.an estimated accuracy of +/- 6 seconds. JV2178 JV2178.The orthometric height was determined by differential leveling JV2178.and adjusted by the National Geodetic Survey in June 1991. JV2178 JV2178.The geoid height was determined by GEOID99. JV2178 JV2178.The dynamic height is computed by dividing the NAVD 88 JV2178.geopotential number by the normal gravity value computed on the JV2178.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2178.degrees latitude (g = 980.6199 gals.). JV2178 JV2178.The modeled gravity was interpolated from observed gravity values. JV2178 JV2178; North East Units Estimated Accuracy JV2178;SPC MD - 156,960. 387,740. MT (+/- 180 meters Scaled) JV2178 JV2178 SUPERSEDED SURVEY CONTROL JV2178 JV2178 NGVD 29 (??/??/??) 130.404 (m) 427.83 (f) ADJUSTED 1 2 JV2178 JV2178.Superseded values are not recommended for survey control. JV2178.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2178.See file dsdata.txt to determine how the superseded data were derived. JV2178 JV2178_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ147278(NAD 83) JV2178_MARKER: DB = BENCH MARK DISK JV2178_SETTING: 36 = OVERPASS JV2178_STAMPING: F 34 1938 JV2178_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV2178 JV2178 HISTORY - Date Condition Report By JV2178 HISTORY - 1938 MONUMENTED CGS JV2178 HISTORY - 1944 GOOD CGS JV2178 HISTORY - 20020125 MARK NOT FOUND MDSHA JV2178 JV2178 STATION DESCRIPTION JV2178 JV2178'DESCRIBED BY COAST AND GEODETIC SURVEY 1938 JV2178'0.3 MI SE FROM ROCKVILLE. JV2178'0.3 MILE SOUTHEAST ALONG THE BALTIMORE AND OHIO RAILROAD FROM JV2178'THE STATION AT ROCKVILLE, MONTGOMERY COUNTY, AT A CONCRETE JV2178'OVERPASS, IN THE CENTER OF THE TOP F THE SOUTHEAST BASE OF A JV2178'RETAINING WALL, 22 FEET SOUTHWEST OF THE CENTER LINE OF THE JV2178'NORTHBOUND TRACK, 3.5 FEET FROM THE END OF THE BASE, AND 1.5 JV2178'FEET ABOVE THE LEVEL OF THE RAILS. A STANDARD DISK, STAMPED JV2178'F 34 1938. JV2178 JV2178 STATION RECOVERY (1944) JV2178 JV2178'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1944 JV2178'RECOVERED IN GOOD CONDITION. JV2178 JV2178 STATION RECOVERY (2002) JV2178 JV2178'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV2178'THE STATION WAS SEARCHED FOR AND NOT RECOVERED. APPEARS THE STATION JV2178'HAS BEEN DESTROYED BY THE CONSTRUCTION OF THE WASHINGTON METRO LINE. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV3847 *********************************************************************** JV3847 DESIGNATION - G 147 JV3847 PID - JV3847 JV3847 STATE/COUNTY- MD/MONTGOMERY JV3847 USGS QUAD - ROCKVILLE (1984) JV3847 JV3847 *CURRENT SURVEY CONTROL JV3847 ___________________________________________________________________ JV3847* NAD 83(1986)- 39 04 33. (N) 077 08 15. (W) SCALED JV3847* NAVD 88 - 125.386 (meters) 411.37 (feet) ADJUSTED JV3847 ___________________________________________________________________ JV3847 GEOID HEIGHT- -31.72 (meters) GEOID99 JV3847 DYNAMIC HT - 125.320 (meters) 411.15 (feet) COMP JV3847 MODELED GRAV- 980,097.7 (mgal) NAVD 88 JV3847 JV3847 VERT ORDER - FIRST CLASS II JV3847 JV3847.The horizontal coordinates were scaled from a topographic map and have JV3847.an estimated accuracy of +/- 6 seconds. JV3847 JV3847.The orthometric height was determined by differential leveling JV3847.and adjusted by the National Geodetic Survey in June 1991. JV3847 JV3847.The geoid height was determined by GEOID99. JV3847 JV3847.The dynamic height is computed by dividing the NAVD 88 JV3847.geopotential number by the normal gravity value computed on the JV3847.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV3847.degrees latitude (g = 980.6199 gals.). JV3847 JV3847.The modeled gravity was interpolated from observed gravity values. JV3847 JV3847; North East Units Estimated Accuracy JV3847;SPC MD - 156,430. 388,100. MT (+/- 180 meters Scaled) JV3847 JV3847 SUPERSEDED SURVEY CONTROL JV3847 JV3847.No superseded survey control is available for this station. JV3847 JV3847_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ150273(NAD 83) JV3847_MARKER: DB = BENCH MARK DISK JV3847_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) JV3847_STAMPING: G 147 1979 JV3847_PROJECTION: RECESSED 10 CENTIMETERS JV3847_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV3847_ROD/PIPE-DEPTH: 4.57 meters JV3847 JV3847 HISTORY - Date Condition Report By JV3847 HISTORY - 1979 MONUMENTED NGS JV3847 HISTORY - 20020125 MARK NOT FOUND MDSHA JV3847 JV3847 STATION DESCRIPTION JV3847 JV3847'DESCRIBED BY NATIONAL GEODETIC SURVEY 1979 JV3847'IN ROCKVILLE. JV3847'IN ROCKVILLE 2.05 MILES NORTHWEST ALONG STATE ROUTE 355, ROCKVILLE JV3847'PIKE FROM THE JUNCTION OF MONTROSE ROAD TO THE MARK ON THE RIGHT, JV3847'61 FEET SOUTHWEST OF THE CENTER OF THE MAIN ENTRANCE DOORS TO JV3847'BERGMANNS DRY CLEANING BUILDING, 822 ROCKVILLE PIKE, 12 FEET EAST OF JV3847'THE EAST CURB OF ROUTE 355, AND 2 FEET SOUTH OF POWER POLE 760452-669. JV3847'THE MARK IS ABOVE LEVEL WITH HIGHWAY. JV3847 JV3847 STATION RECOVERY (2002) JV3847 JV3847'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV3847'THE STATION WAS SEARCHED FOR AND NOT RECOVERED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV2854 *********************************************************************** JV2854 DESIGNATION - G 94 JV2854 PID - JV2854 JV2854 STATE/COUNTY- MD/MONTGOMERY JV2854 USGS QUAD - ROCKVILLE (1984) JV2854 JV2854 *CURRENT SURVEY CONTROL JV2854 ___________________________________________________________________ JV2854* NAD 83(1986)- 39 00 44. (N) 077 13 01. (W) SCALED JV2854* NAVD 88 - 104.615 (meters) 343.22 (feet) ADJUSTED JV2854 ___________________________________________________________________ JV2854 GEOID HEIGHT- -31.70 (meters) GEOID99 JV2854 DYNAMIC HT - 104.561 (meters) 343.05 (feet) COMP JV2854 MODELED GRAV- 980,108.6 (mgal) NAVD 88 JV2854 JV2854 VERT ORDER - SECOND CLASS 0 JV2854 JV2854.The horizontal coordinates were scaled from a topographic map and have JV2854.an estimated accuracy of +/- 6 seconds. JV2854 JV2854.The orthometric height was determined by differential leveling JV2854.and adjusted by the National Geodetic Survey in June 1991. JV2854 JV2854.The geoid height was determined by GEOID99. JV2854 JV2854.The dynamic height is computed by dividing the NAVD 88 JV2854.geopotential number by the normal gravity value computed on the JV2854.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV2854.degrees latitude (g = 980.6199 gals.). JV2854 JV2854.The modeled gravity was interpolated from observed gravity values. JV2854 JV2854; North East Units Estimated Accuracy JV2854;SPC MD - 149,390. 381,210. MT (+/- 180 meters Scaled) JV2854 JV2854 SUPERSEDED SURVEY CONTROL JV2854 JV2854 NGVD 29 (??/??/??) 104.848 (m) 343.99 (f) ADJUSTED 2 0 JV2854 JV2854.Superseded values are not recommended for survey control. JV2854.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV2854.See file dsdata.txt to determine how the superseded data were derived. JV2854 JV2854_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ080204(NAD 83) JV2854_MARKER: DB = BENCH MARK DISK JV2854_SETTING: 32 = CULVERT HEADWALL JV2854_STAMPING: G 94 1944 JV2854_MARK LOGO: CGS JV2854_MAGNETIC: O = OTHER; SEE DESCRIPTION JV2854_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO JV2854+STABILITY: SURFACE MOTION JV2854_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV2854+SATELLITE: SATELLITE OBSERVATIONS - August 17, 2001 JV2854 JV2854 HISTORY - Date Condition Report By JV2854 HISTORY - 1944 MONUMENTED CGS JV2854 HISTORY - 1965 GOOD WSSC JV2854 HISTORY - 20010817 GOOD MDSHA JV2854 JV2854 STATION DESCRIPTION JV2854 JV2854'DESCRIBED BY WASH SUBURB SAN COMM 1965 JV2854'0.6 MI SW FROM POTOMAC. JV2854'0.55 MI. S.W. ALONG STATE HWY. 189 (FALLS ROAD) FROM ITS JV2854'INTERSECTION WITH STATE HWY. 190 (RIVER ROAD) AT POTOMAC IN A JV2854'CONCRETE CULVERT 15 FT. W. OF THE CENTER LINE OF THE HWY., 100 JV2854'FT. N. OF A ROAD W., AND 18 INCHES N. OF THE S. END OF THE JV2854'CULVERT. JV2854 JV2854 STATION RECOVERY (2001) JV2854 JV2854'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV2854'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV3848 *********************************************************************** JV3848 DESIGNATION - H 147 JV3848 PID - JV3848 JV3848 STATE/COUNTY- MD/MONTGOMERY JV3848 USGS QUAD - ROCKVILLE (1984) JV3848 JV3848 *CURRENT SURVEY CONTROL JV3848 ___________________________________________________________________ JV3848* NAD 83(1986)- 39 06 00. (N) 077 09 17. (W) SCALED JV3848* NAVD 88 - 138.561 (meters) 454.60 (feet) ADJUSTED JV3848 ___________________________________________________________________ JV3848 GEOID HEIGHT- -31.70 (meters) GEOID99 JV3848 DYNAMIC HT - 138.489 (meters) 454.36 (feet) COMP JV3848 MODELED GRAV- 980,101.5 (mgal) NAVD 88 JV3848 JV3848 VERT ORDER - FIRST CLASS II JV3848 JV3848.The horizontal coordinates were scaled from a topographic map and have JV3848.an estimated accuracy of +/- 6 seconds. JV3848 JV3848.The orthometric height was determined by differential leveling JV3848.and adjusted by the National Geodetic Survey in June 1991. JV3848 JV3848.The geoid height was determined by GEOID99. JV3848 JV3848.The dynamic height is computed by dividing the NAVD 88 JV3848.geopotential number by the normal gravity value computed on the JV3848.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV3848.degrees latitude (g = 980.6199 gals.). JV3848 JV3848.The modeled gravity was interpolated from observed gravity values. JV3848 JV3848; North East Units Estimated Accuracy JV3848;SPC MD - 159,120. 386,620. MT (+/- 180 meters Scaled) JV3848 JV3848 SUPERSEDED SURVEY CONTROL JV3848 JV3848.No superseded survey control is available for this station. JV3848 JV3848_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ136300(NAD 83) JV3848_MARKER: DV = VERTICAL CONTROL DISK JV3848_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) JV3848_STAMPING: H 147 1979 JV3848_MARK LOGO: NGS JV3848_PROJECTION: RECESSED 10 CENTIMETERS JV3848_MAGNETIC: O = OTHER; SEE DESCRIPTION JV3848_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV3848_ROD/PIPE-DEPTH: 4.57 meters JV3848 JV3848 HISTORY - Date Condition Report By JV3848 HISTORY - 1979 MONUMENTED NGS JV3848 HISTORY - 20020125 GOOD MDSHA JV3848 JV3848 STATION DESCRIPTION JV3848 JV3848'DESCRIBED BY NATIONAL GEODETIC SURVEY 1979 JV3848'2.05 MI SE FROM GAITHERSBURG. JV3848'2.05 MILES SOUTHEAST ALONG STATE ROUTE 355 FROM THE INTERSECTION OF JV3848'SHADY GROVE ROAD IN GAITHERSBURG TO THE MARK ON THE RIGHT, SET JV3848'DIRECTLY ACROSS THE HIGHWAY FROM THE JUNCTION OF WESTMORE ROAD, JV3848'3.1 MILES NORTHWEST OF THE JUNCTION OF MONTROSE ROAD IN ROCKVILLE, JV3848'11.8 FEET WEST OF THE WEST CURB OF ROUTE 355, 3 FEET WEST OF A LARGE JV3848'POWER POLE, AND 2.7 FEET WEST OF THE WEST SIDE OF THE SIDEWALK. JV3848'THE MARK IS 1 FT S FROM A WITNESS POST. JV3848'THE MARK IS ABOVE LEVEL WITH HIGHWAY. JV3848 JV3848 STATION RECOVERY (2002) JV3848 JV3848'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV3848'RECOVERED AS DESCRIBED. THE POWER POLE IS NUMBER 756460-9923. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 JV3849 *********************************************************************** JV3849 DESIGNATION - J 147 JV3849 PID - JV3849 JV3849 STATE/COUNTY- MD/MONTGOMERY JV3849 USGS QUAD - ROCKVILLE (1984) JV3849 JV3849 *CURRENT SURVEY CONTROL JV3849 ___________________________________________________________________ JV3849* NAD 83(1986)- 39 07 02. (N) 077 10 09. (W) SCALED JV3849* NAVD 88 - 144.985 (meters) 475.67 (feet) ADJUSTED JV3849 ___________________________________________________________________ JV3849 GEOID HEIGHT- -31.70 (meters) GEOID99 JV3849 DYNAMIC HT - 144.909 (meters) 475.42 (feet) COMP JV3849 MODELED GRAV- 980,100.5 (mgal) NAVD 88 JV3849 JV3849 VERT ORDER - FIRST CLASS II JV3849 JV3849.The horizontal coordinates were scaled from a topographic map and have JV3849.an estimated accuracy of +/- 6 seconds. JV3849 JV3849.The orthometric height was determined by differential leveling JV3849.and adjusted by the National Geodetic Survey in June 1991. JV3849 JV3849.The geoid height was determined by GEOID99. JV3849 JV3849.The dynamic height is computed by dividing the NAVD 88 JV3849.geopotential number by the normal gravity value computed on the JV3849.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV3849.degrees latitude (g = 980.6199 gals.). JV3849 JV3849.The modeled gravity was interpolated from observed gravity values. JV3849 JV3849; North East Units Estimated Accuracy JV3849;SPC MD - 161,030. 385,370. MT (+/- 180 meters Scaled) JV3849 JV3849 SUPERSEDED SURVEY CONTROL JV3849 JV3849.No superseded survey control is available for this station. JV3849 JV3849_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ124320(NAD 83) JV3849_MARKER: DB = BENCH MARK DISK JV3849_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+) JV3849_STAMPING: J 147 1979 JV3849_PROJECTION: RECESSED 10 CENTIMETERS JV3849_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV3849_ROD/PIPE-DEPTH: 4.27 meters JV3849 JV3849 HISTORY - Date Condition Report By JV3849 HISTORY - 1979 MONUMENTED NGS JV3849 HISTORY - 20020125 MARK NOT FOUND MDSHA JV3849 JV3849 STATION DESCRIPTION JV3849 JV3849'DESCRIBED BY NATIONAL GEODETIC SURVEY 1979 JV3849'0.55 MI SE FROM GAITHERSVURG. JV3849'0.55 MILE SOUTHEAST ALONG STATE ROUTE 355 FROM THE INTERSECTION OF JV3849'SHADY GROVE ROAD IN GAITHERSBURG TO THE MARK ON THE RIGHT, SET JV3849'DIRECTLY ACROSS THE HIGHWAY FROM REED BROTHERS DODGE SALES AND SERVICE JV3849'IN A FENCE LINE, 26.5 FEET SOUTHWEST OF THE CENTER OF A CATCH BASIN, JV3849'25 FEET SOUTHWEST OF THE SOUTHWEST CURB OF ROUTE 355, 12 FEET SOUTH JV3849'WEST OF POWER POLE 751467-8659, 1 FOOT NORTHEAST OF A 4 FOOT HIGH JV3849'WIRE FENCE. JV3849'THE MARK IS 1 FT NW FROM A WITNESS POST. JV3849'THE MARK IS 1 FT BELOW HIGHWAY. JV3849 JV3849 STATION RECOVERY (2002) JV3849 JV3849'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) JV3849'THE STATION WAS SEARCHED FOR AND NOT RECOVERED. 1 National Geodetic Survey, Retrieval Date = NOVEMBER 3, 2003 AJ7990 *********************************************************************** AJ7990 FBN - This is a Federal Base Network Control Station. AJ7990 DESIGNATION - SHERWOOD AJ7990 PID - AJ7990 AJ7990 STATE/COUNTY- MD/MONTGOMERY AJ7990 USGS QUAD - SANDY SPRING (1988) AJ7990 AJ7990 *CURRENT SURVEY CONTROL AJ7990 ___________________________________________________________________ AJ7990* NAD 83(1991)- 39 08 55.24523(N) 077 01 58.81390(W) ADJUSTED AJ7990* NAVD 88 - 143.1 (meters) 469. (feet) GPS OBS AJ7990 ___________________________________________________________________ AJ7990 X - 1,111,404.578 (meters) COMP AJ7990 Y - -4,826,705.150 (meters) COMP AJ7990 Z - 4,005,201.253 (meters) COMP AJ7990 LAPLACE CORR- -3.51 (seconds) DEFLEC99 AJ7990 ELLIP HEIGHT- 111.23 (meters) (02/12/02) GPS OBS AJ7990 GEOID HEIGHT- -31.86 (meters) GEOID99 AJ7990 AJ7990 HORZ ORDER - A AJ7990 ELLP ORDER - FOURTH CLASS I AJ7990 AJ7990.The horizontal coordinates were established by GPS observations AJ7990.and adjusted by the National Geodetic Survey in February 2002. AJ7990 AJ7990.The orthometric height was determined by GPS observations and a AJ7990.high-resolution geoid model. AJ7990 AJ7990.The X, Y, and Z were computed from the position and the ellipsoidal ht. AJ7990 AJ7990.The Laplace correction was computed from DEFLEC99 derived deflections. AJ7990 AJ7990.The ellipsoidal height was determined by GPS observations AJ7990.and is referenced to NAD 83. AJ7990 AJ7990.The geoid height was determined by GEOID99. AJ7990 AJ7990; North East Units Scale Converg. AJ7990;SPC MD - 164,511.907 397,147.098 MT 0.99996116 -0 01 14.6 AJ7990;SPC MD - 539,736.15 1,302,973.44 sFT 0.99996116 -0 01 14.6 AJ7990;UTM 18 - 4,335,244.085 324,320.088 MT 0.99998003 -1 17 01.8 AJ7990 AJ7990 SUPERSEDED SURVEY CONTROL AJ7990 AJ7990.No superseded survey control is available for this station. AJ7990 AJ7990_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ2432035244(NAD 83) AJ7990_MARKER: DD = SURVEY DISK AJ7990_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AJ7990_STAMPING: SHERWOOD 1991 AJ7990_MARK LOGO: MDSHA AJ7990_MAGNETIC: O = OTHER; SEE DESCRIPTION AJ7990_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AJ7990+STABILITY: SURFACE MOTION AJ7990_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AJ7990+SATELLITE: SATELLITE OBSERVATIONS - August 28, 2001 AJ7990 AJ7990 HISTORY - Date Condition Report By AJ7990 HISTORY - 1991 MONUMENTED MDSHA AJ7990 HISTORY - 20000412 GOOD MDSHA AJ7990 HISTORY - 20010828 GOOD MDSHA AJ7990 AJ7990 STATION DESCRIPTION AJ7990 AJ7990'DESCRIBED BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (SFK) AJ7990'THE STATION IS LOCATED ABOUT 6.5 MILES (10.5 KM) NORTHEAST OF AJ7990'ROCKVILLE, 0.5 MILES (0.8 KM) WEST OF SANDY SPRINGS, ON THE GROUNDS OF AJ7990'SHERWOOD ELEMENTARY SCHOOL. THE PROPERTY IS OWNED BY THE MONTGOMERY AJ7990'COUNTY DEPARTMENT OF PUBLIC SCHOOLS. TO REACH THE STATION FROM THE AJ7990'INTERSECTION OF STATE HIGHWAY 650 AND STATE HIGHWAY 108 IN ASHTON, GO AJ7990'WEST ALONG STATE HIGHWAY 108 FOR 1.05 MILES (1.69 KM) TO THE STATION AJ7990'ON THE RIGHT. THE STATION IS A MARYLAND STATE HIGHWAY SURVEY DISK SET AJ7990'IN THE TOP OF A 1.0 FOOT (0.3 M) ROUND CONCRETE MONUMENT WHICH IS AJ7990'FLUSH WITH THE SURFACE OF THE GROUND. IT IS 71.0 FEET (21.6 M) AJ7990'NORTHEAST OF A GUY POLE, 21.0 FEET (6.4 M) NORTH OF THE FACE OF THE AJ7990'CONCRETE CURB FOR STATE HIGHWAY 108, 47.5 FEET (14.5 M) NORTHWEST OF AJ7990'THE NORTHWEST CORNER OF A CONCRETE DROP INLET, AND 193.0 FEET (58.8 M) AJ7990'WEST OF THE EAST ENTRANCE TO SHERWOOD ELEMENTARY SCHOOL. AJ7990 AJ7990 STATION RECOVERY (2001) AJ7990 AJ7990'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) AJ7990'RECOVERED AS DESCRIBED.