1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 JV1550 *********************************************************************** JV1550 DESIGNATION - 22 JV1550 PID - JV1550 JV1550 STATE/COUNTY- MD/BALTIMORE JV1550 USGS QUAD - HEREFORD (1974) JV1550 JV1550 *CURRENT SURVEY CONTROL JV1550 ___________________________________________________________________ JV1550* NAD 83(1986)- 39 32 21. (N) 076 38 18. (W) SCALED JV1550* NAVD 88 - 77.413 (meters) 253.98 (feet) ADJUSTED JV1550 ___________________________________________________________________ JV1550 GEOID HEIGHT- -32.36 (meters) GEOID99 JV1550 DYNAMIC HT - 77.375 (meters) 253.85 (feet) COMP JV1550 MODELED GRAV- 980,125.1 (mgal) NAVD 88 JV1550 JV1550 VERT ORDER - SECOND CLASS I JV1550 JV1550.The horizontal coordinates were scaled from a topographic map and have JV1550.an estimated accuracy of +/- 6 seconds. JV1550 JV1550.The orthometric height was determined by differential leveling JV1550.and adjusted by the National Geodetic Survey in November 2003. JV1550.No vertical observational check was made to the station. JV1550 JV1550.The geoid height was determined by GEOID99. JV1550 JV1550.The dynamic height is computed by dividing the NAVD 88 JV1550.geopotential number by the normal gravity value computed on the JV1550.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 JV1550.degrees latitude (g = 980.6199 gals.). JV1550 JV1550.The modeled gravity was interpolated from observed gravity values. JV1550 JV1550; North East Units Estimated Accuracy JV1550;SPC MD - 207,930. 431,090. MT (+/- 180 meters Scaled) JV1550 JV1550 SUPERSEDED SURVEY CONTROL JV1550 JV1550 NAVD 88 (06/15/91) 77.395 (m) 253.92 (f) UNKNOWN 2 0 JV1550 NGVD 29 (??/??/??) 77.593 (m) 254.57 (f) ADJUSTED 2 0 JV1550 JV1550.Superseded values are not recommended for survey control. JV1550.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. JV1550.See file dsdata.txt to determine how the superseded data were derived. JV1550 JV1550_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ592778(NAD 83) JV1550_MARKER: B = BOLT JV1550_SETTING: 36 = STONE BRIDGE ABUTMENT JV1550_MARK LOGO: NONE JV1550_MAGNETIC: O = OTHER; SEE DESCRIPTION JV1550_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL JV1550_SATELLITE: THE SITE LOCATION WAS REPORTED AS NOT SUITABLE FOR JV1550+SATELLITE: SATELLITE OBSERVATIONS - August 27, 2001 JV1550 JV1550 HISTORY - Date Condition Report By JV1550 HISTORY - UNK MONUMENTED PRR JV1550 HISTORY - 1959 GOOD CGS JV1550 HISTORY - 20010827 GOOD MDSHA JV1550 JV1550 STATION DESCRIPTION JV1550 JV1550'DESCRIBED BY COAST AND GEODETIC SURVEY 1959 JV1550'AT SPARKS. JV1550'AT SPARKS, ALONG THE PENNSYLVANIA RAILROAD, ON TOP AND NEAR THE JV1550'CENTER OF THE WEST STONE ABUTMENT OF BRIDGE NO. 19.52 UNDER THE JV1550'TRACKS, 201 FEET SOUTH OF THE CENTER LINE OF THE SPARKS ROAD JV1550'CROSSING, 5 FEET WEST OF THE WEST RAIL AND ABOUT 1 FOOT BELOW JV1550'THE LEVEL OF THE TRACK. JV1550 JV1550 STATION RECOVERY (2001) JV1550 JV1550'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) JV1550'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 AJ7978 *********************************************************************** AJ7978 CBN - This is a Cooperative Base Network Control Station. AJ7978 DESIGNATION - BELL AJ7978 PID - AJ7978 AJ7978 STATE/COUNTY- MD/BALTIMORE AJ7978 USGS QUAD - HEREFORD (1974) AJ7978 AJ7978 *CURRENT SURVEY CONTROL AJ7978 ___________________________________________________________________ AJ7978* NAD 83(1991)- 39 32 57.82881(N) 076 40 02.89388(W) ADJUSTED AJ7978* NAVD 88 - 113.549 (meters) 372.54 (feet) ADJUSTED AJ7978 ___________________________________________________________________ AJ7978 X - 1,135,664.796 (meters) COMP AJ7978 Y - -4,792,046.164 (meters) COMP AJ7978 Z - 4,039,585.583 (meters) COMP AJ7978 LAPLACE CORR- -3.06 (seconds) DEFLEC99 AJ7978 ELLIP HEIGHT- 81.25 (meters) (02/12/02) GPS OBS AJ7978 GEOID HEIGHT- -32.31 (meters) GEOID99 AJ7978 DYNAMIC HT - 113.491 (meters) 372.35 (feet) COMP AJ7978 MODELED GRAV- 980,119.3 (mgal) NAVD 88 AJ7978 AJ7978 HORZ ORDER - A AJ7978 VERT ORDER - SECOND CLASS I AJ7978 ELLP ORDER - FOURTH CLASS I AJ7978 AJ7978.The horizontal coordinates were established by GPS observations AJ7978.and adjusted by the National Geodetic Survey in February 2002. AJ7978 AJ7978.The orthometric height was determined by differential leveling AJ7978.and adjusted by the National Geodetic Survey in November 2003. AJ7978 AJ7978.The X, Y, and Z were computed from the position and the ellipsoidal ht. AJ7978 AJ7978.The Laplace correction was computed from DEFLEC99 derived deflections. AJ7978 AJ7978.The ellipsoidal height was determined by GPS observations AJ7978.and is referenced to NAD 83. AJ7978 AJ7978.The geoid height was determined by GEOID99. AJ7978 AJ7978.The dynamic height is computed by dividing the NAVD 88 AJ7978.geopotential number by the normal gravity value computed on the AJ7978.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 AJ7978.degrees latitude (g = 980.6199 gals.). AJ7978 AJ7978.The modeled gravity was interpolated from observed gravity values. AJ7978 AJ7978; North East Units Scale Converg. AJ7978;SPC MD - 209,051.359 428,582.218 MT 1.00001890 +0 12 31.3 AJ7978;SPC MD - 685,862.67 1,406,106.83 sFT 1.00001890 +0 12 31.3 AJ7978;UTM 18 - 4,379,074.306 356,730.195 MT 0.99985272 -1 03 43.0 AJ7978 AJ7978 SUPERSEDED SURVEY CONTROL AJ7978 AJ7978.No superseded survey control is available for this station. AJ7978 AJ7978_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ5673079074(NAD 83) AJ7978_MARKER: DD = SURVEY DISK AJ7978_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AJ7978_STAMPING: BELL 1991 AJ7978_MARK LOGO: MDSHA AJ7978_MAGNETIC: O = OTHER; SEE DESCRIPTION AJ7978_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AJ7978+STABILITY: SURFACE MOTION AJ7978_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AJ7978+SATELLITE: SATELLITE OBSERVATIONS - August 27, 2001 AJ7978 AJ7978 HISTORY - Date Condition Report By AJ7978 HISTORY - 1991 MONUMENTED MDSHA AJ7978 HISTORY - 20000327 GOOD MDSHA AJ7978 HISTORY - 20010827 GOOD MDSHA AJ7978 AJ7978 STATION DESCRIPTION AJ7978 AJ7978'DESCRIBED BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (SFK) AJ7978'THE STATION IS LOCATED ABOUT 8.0 MILES (12.9 KM) NORTH OF TIMONIUM, AJ7978'AND 3.9 MILES (6.3 KM) NORTH OF HUNT VALLEY AND 4.0 MILES (6.4 KM) AJ7978'EAST OF BUTLER, IN THE NORTHWEST QUADRANT OF THE INTERSECTION OF AJ7978'INTERSTATE HIGHWAY 83 AND BELFAST ROAD. OWNERSHIP- HIGHWAY AJ7978'RIGHT-OF-WAY. TO REACH THE STATION FROM THE INTERSECTION OF AJ7978'INTERSTATE 695 AND INTERSTATE 83, GO NORTH ALONG INTERSTATE 83 FOR 9.0 AJ7978'MILES (14.5 KM) TO BELFAST ROAD AND THE STATION IN THE NORTHWEST AJ7978'QUADRANT. THE STATION IS A STANDARD MARYLAND STATE HIGHWAY SURVEY AJ7978'DISK SET IN THE TOP OF A 0.75 FOOT (22.86 CM) CONCRETE MONUMENT WHICH AJ7978'IS FLUSH WITH THE GROUND. IT IS 384.0 FEET (117.0 M) NORTH OF THE AJ7978'NORTH END OF THE BRIDGE OVER BELFAST ROAD ALONG INTERSTATE 83, 210.0 AJ7978'FEET (64.0 M) WEST OF THE CENTER OF THE MEDIAN OF INTERSTATE 83, 46.0 AJ7978'FEET (14.0 M) SOUTH OF THE FACE OF THE SOUTH CURB OF THE RAMP FROM AJ7978'BELFAST ROAD TO THE SOUTH BOUND LANES OF THE HIGHWAY, AND 112.5 FEET AJ7978'(34.3 M) WEST OF THE END OF THE SOUTH CONCRETE CURB OF THE RAMP FROM AJ7978'BELFAST ROAD TO SOUTH BOUND INTERSTATE 83. AJ7978 AJ7978 STATION RECOVERY (2001) AJ7978 AJ7978'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK) AJ7978'RECOVERED AS DESCRIBED. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 AJ7985 *********************************************************************** AJ7985 CBN - This is a Cooperative Base Network Control Station. AJ7985 DESIGNATION - CCCBC AJ7985 PID - AJ7985 AJ7985 STATE/COUNTY- MD/BALTIMORE AJ7985 USGS QUAD - BALTIMORE WEST (1974) AJ7985 AJ7985 *CURRENT SURVEY CONTROL AJ7985 ___________________________________________________________________ AJ7985* NAD 83(1991)- 39 15 05.53053(N) 076 44 07.17626(W) ADJUSTED AJ7985* NAVD 88 - 126.550 (meters) 415.19 (feet) ADJUSTED AJ7985 ___________________________________________________________________ AJ7985 X - 1,134,807.304 (meters) COMP AJ7985 Y - -4,813,828.153 (meters) COMP AJ7985 Z - 4,014,039.799 (meters) COMP AJ7985 LAPLACE CORR- -5.87 (seconds) DEFLEC99 AJ7985 ELLIP HEIGHT- 94.20 (meters) (02/12/02) GPS OBS AJ7985 GEOID HEIGHT- -32.39 (meters) GEOID99 AJ7985 DYNAMIC HT - 126.484 (meters) 414.97 (feet) COMP AJ7985 MODELED GRAV- 980,097.1 (mgal) NAVD 88 AJ7985 AJ7985 HORZ ORDER - A AJ7985 VERT ORDER - SECOND CLASS I AJ7985 ELLP ORDER - FOURTH CLASS I AJ7985 AJ7985.The horizontal coordinates were established by GPS observations AJ7985.and adjusted by the National Geodetic Survey in February 2002. AJ7985 AJ7985.The orthometric height was determined by differential leveling AJ7985.and adjusted by the National Geodetic Survey in November 2003. AJ7985.No vertical observational check was made to the station. AJ7985 AJ7985.The X, Y, and Z were computed from the position and the ellipsoidal ht. AJ7985 AJ7985.The Laplace correction was computed from DEFLEC99 derived deflections. AJ7985 AJ7985.The ellipsoidal height was determined by GPS observations AJ7985.and is referenced to NAD 83. AJ7985 AJ7985.The geoid height was determined by GEOID99. AJ7985 AJ7985.The dynamic height is computed by dividing the NAVD 88 AJ7985.geopotential number by the normal gravity value computed on the AJ7985.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 AJ7985.degrees latitude (g = 980.6199 gals.). AJ7985 AJ7985.The modeled gravity was interpolated from observed gravity values. AJ7985 AJ7985; North East Units Scale Converg. AJ7985;SPC MD - 175,963.236 422,845.605 MT 0.99997130 +0 09 58.0 AJ7985;SPC MD - 577,306.05 1,387,285.96 sFT 0.99997130 +0 09 58.0 AJ7985;UTM 18 - 4,346,125.411 350,263.887 MT 0.99987607 -1 05 53.5 AJ7985 AJ7985 SUPERSEDED SURVEY CONTROL AJ7985 AJ7985.No superseded survey control is available for this station. AJ7985 AJ7985_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ5026446125(NAD 83) AJ7985_MARKER: DD = SURVEY DISK AJ7985_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AJ7985_STAMPING: CCCBC 2000 AJ7985_MARK LOGO: MDSHA AJ7985_MAGNETIC: O = OTHER; SEE DESCRIPTION AJ7985_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AJ7985+STABILITY: SURFACE MOTION AJ7985_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AJ7985+SATELLITE: SATELLITE OBSERVATIONS - September 21, 2003 AJ7985 AJ7985 HISTORY - Date Condition Report By AJ7985 HISTORY - 2000 MONUMENTED MDSHA AJ7985 HISTORY - 20020326 GOOD MDSHA AJ7985 HISTORY - 20030921 GOOD USPSQD AJ7985 AJ7985 STATION DESCRIPTION AJ7985 AJ7985'DESCRIBED BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (NLE) AJ7985'THE STATION IS LOCATED ABOUT 3.3 MI (5.3 KM) EAST OF ELLICOTT CITY, AJ7985'8.0 MI (12.9 KM) SOUTH SOUTH EAST OF RANDALLSTOWN, AND 2.0 MI (3.2 KM) AJ7985'WEST OF ARBUTUS. TO REACH THE STATION FROM THE INTERSECTION OF MD RTE AJ7985'166 (ROLLING ROAD) AND MD RTE 372 (WILKENS AVE) . GO NORTHWEST ON MD AJ7985'166 (ROLLING ROAD) FOR 0.1 MI (0.2 KM) TO COLLEGIATE DRIVE ON THE AJ7985'LEFT. TURN LEFT ONTO COLLEGIATE DRIVE, HEADING SOUTHWEST, AND FOLLOW AJ7985'FOR 0.5 MI (0.8 KM) TO A STOP SIGN AT CAMPUS DRIVE. TURN LEFT ONTO AJ7985'CAMPUS DRIVE, HEADING SOUTH, AND FOLOW FOR 0.18 MI (0.29 KM) TO THE AJ7985'ENTRANCE TO PARKING LOT E AND A SIGN THAT READS, PARKING FOR L AJ7985'BUILDING PHYSICAL DEVELOPMENT CENTER AND R BUILDING OCCUPATIONAL AJ7985'TRAINING CENTER, ON THE RIGHT. TURN RIGHT, HEADING NORTH, AND FOLLOW AJ7985'ENTRANCE STRAIGHT AHEAD FOR 0.05 MI (0.08 KM) TO THE END OF THE AJ7985'ENTRANCE AT A CONCRETE CURB AND SIDEWALK. PROCEED STRAIGHT AHEAD AJ7985'ACROSS WALK AND GRASS FOR 150 FT (45.7 M) TO THE STATION, 18 FT (5.5 AJ7985'M) WEST OF THE EDGE OF THE SIDEWALK. THE STATION IS A STANDARD SHA AJ7985'DISK SET INTO THE TOP OF A 1.0 FT (0.3 M) ROUND CONCRETE MONUMENT AJ7985'WHICH IS FLUSH WITH THE SURFACE OF THE GROUND. IT IS 82.7 FT (25.2 M) AJ7985'SOUTHEAST OF A LAMP POST, 69.0 FT (21.0 M) SOUTH OF A SIX INCH CHERRY AJ7985'TREE IN THE CENTER OF A GRASS ISLAND SURROUNDED BY CONCRETE SIDEWALKS, AJ7985'177.1 FT (54.0 M) SOUTHWEST OF THE SOUTHWEST CORNER OF CLASSROOM AJ7985'TRAILER T105, AND 21.5 FT (6.6 M) NORTHWEST OF A LAMP POST. AJ7985 AJ7985 STATION RECOVERY (2002) AJ7985 AJ7985'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2002 (SFK) AJ7985'RECOVERED AS DESCRIBED. AJ7985 AJ7985 STATION RECOVERY (2003) AJ7985 AJ7985'RECOVERY NOTE BY US POWER SQUADRON 2003 (DRB) AJ7985'RECOVERED IN GOOD CONDITION. NOTE--THE ORANGE FIBERGLASS WITNESS POST AJ7985'IS BROKEN OFF AT GROUND LEVEL AND LYING ON THE GROUND. 1 National Geodetic Survey, Retrieval Date = DECEMBER 8, 2003 AI4398 *********************************************************************** AI4398 DESIGNATION - GIS 120 AI4398 PID - AI4398 AI4398 STATE/COUNTY- MD/BALTIMORE AI4398 USGS QUAD - NEW FREEDOM (1974) AI4398 AI4398 *CURRENT SURVEY CONTROL AI4398 ___________________________________________________________________ AI4398* NAD 83(1991)- 39 39 34.57696(N) 076 39 08.57499(W) ADJUSTED AI4398* NAVD 88 - 176.69 (meters) 579.7 (feet) GPS OBS AI4398 ___________________________________________________________________ AI4398 X - 1,135,137.161 (meters) COMP AI4398 Y - -4,784,204.563 (meters) COMP AI4398 Z - 4,049,053.443 (meters) COMP AI4398 LAPLACE CORR- -1.79 (seconds) DEFLEC99 AI4398 ELLIP HEIGHT- 144.42 (meters) (08/30/02) GPS OBS AI4398 GEOID HEIGHT- -32.33 (meters) GEOID99 AI4398 AI4398 HORZ ORDER - FIRST AI4398 ELLP ORDER - FOURTH CLASS II AI4398 AI4398.The horizontal coordinates were established by GPS observations AI4398.and adjusted by the National Geodetic Survey in March 2000. AI4398 AI4398.The orthometric height was determined by GPS observations and a AI4398.high-resolution geoid model using precise GPS observation and AI4398.processing techniques. AI4398 AI4398.The X, Y, and Z were computed from the position and the ellipsoidal ht. AI4398 AI4398.The Laplace correction was computed from DEFLEC99 derived deflections. AI4398 AI4398.The ellipsoidal height was determined by GPS observations AI4398.and is referenced to NAD 83. AI4398 AI4398.The geoid height was determined by GEOID99. AI4398 AI4398; North East Units Scale Converg. AI4398;SPC MD - 221,292.528 429,832.539 MT 1.00004339 +0 13 05.4 AI4398;SPC MD - 726,023.90 1,410,208.92 sFT 1.00004339 +0 13 05.4 AI4398;UTM 18 - 4,391,282.500 358,251.628 MT 0.99984737 -1 03 17.2 AI4398 AI4398 SUPERSEDED SURVEY CONTROL AI4398 AI4398 ELLIP H (03/31/00) 144.34 (m) GP( ) 3 1 AI4398 AI4398.Superseded values are not recommended for survey control. AI4398.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums. AI4398.See file dsdata.txt to determine how the superseded data were derived. AI4398 AI4398_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUJ5825291282(NAD 83) AI4398_MARKER: DD = SURVEY DISK AI4398_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT AI4398_STAMPING: GIS 120 AI4398_MARK LOGO: MD-005 AI4398_MAGNETIC: R = STEEL ROD IMBEDDED IN MONUMENT AI4398_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO AI4398+STABILITY: SURFACE MOTION AI4398_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR AI4398+SATELLITE: SATELLITE OBSERVATIONS - October 20, 2003 AI4398 AI4398 HISTORY - Date Condition Report By AI4398 HISTORY - 1997 MONUMENTED MD-005 AI4398 HISTORY - 20031020 GOOD DMW AI4398 AI4398 STATION DESCRIPTION AI4398 AI4398'DESCRIBED BY BALTIMORE COUNTY MARYLAND 1997 (WEH) AI4398'DESCRIBED BY BALTIMORE COUNTY SURVEY DIVISION 1997 (WEH) . STATION IS AI4398'LOCATED ABOUT 3.3 MILES (5.3 KM) NORTH OF HEREFORD AND 9.8 MILES (15.8 AI4398'KM) EAST OF HAMPSTEAD. TO REACH THE STATION FROM THE ROUTE 45 (YORK AI4398'ROAD) OVERPASS OF I83 AT EXIT 33, GO NORTH ON ROUTE 45 FOR 0.25 MILES AI4398'(0.40 KM) TO AN ABANDONNED PAVED LANE AND THE STATION ON THE RIGHT. AI4398'STATION MARK IS SET IN THE TOP OF A 10 INCH CONCRETE MONUMENT FLUSH AI4398'WITH THE GROUND. IT IS 16.40 FEET (5.00 M) SOUTH FROM THE FACE OF AN AI4398'UNNUMBERED UTILITY POLE, 29 FEET (8.8 M) SOUTHWEST FROM THE CENTERLINE AI4398'OF THE PAVED LANE, AND 84.50 FEET (25.76 M) EAST FROM THE CENTERLINE AI4398'OF THE CONCRETE MEDIAN STRIP OF ROUTE 45. AI4398 AI4398 STATION RECOVERY (2003) AI4398 AI4398'RECOVERY NOTE BY DAFT MCCUNE WALKER INCORPORATED 2003 (JMS) AI4398'THE PREVIOUSLY-DESCRIBED CONCRETE MEDIAN IN ROUTE 45 NO LONGER EXISTS AI4398'AND THEREFORE CAN NOT BE USED AS A RECOVERY REFERENCE.