NOTE: Dated material.
For the latest datasheets, visit visit http://www.ngs.noaa.gov/cgi-bin/ds_proj.prl and retrieve DATASHEETS by PROJECT ID=GPS2204
See file dsdata.txt for more information about the datasheet.
DATABASE = Sybase ,PROGRAM = datasheet, VERSION = 7.31
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8210 ***********************************************************************
DH8210 HT_MOD - This is a Height Modernization Survey Station.
DH8210 DESIGNATION - 1980S RESTORATION SITE N SET
DH8210 PID - DH8210
DH8210 STATE/COUNTY- MD/DORCHESTER
DH8210 USGS QUAD - BLACKWATER RIVER (1982)
DH8210
DH8210 *CURRENT SURVEY CONTROL
DH8210 ___________________________________________________________________
DH8210* NAD 83(1991)- 38 25 37.59340(N) 076 05 45.56423(W) ADJUSTED
DH8210* NAVD 88 - 0.37 (meters) 1.2 (feet) GPS OBS
DH8210 ___________________________________________________________________
DH8210 X - 1,202,218.792 (meters) COMP
DH8210 Y - -4,856,483.182 (meters) COMP
DH8210 Z - 3,942,672.263 (meters) COMP
DH8210 LAPLACE CORR- -2.87 (seconds) DEFLEC99
DH8210 ELLIP HEIGHT- -34.83 (meters) (02/28/06) GPS OBS
DH8210 GEOID HEIGHT- -35.19 (meters) GEOID03
DH8210
DH8210 HORZ ORDER - B
DH8210 ELLP ORDER - FIFTH CLASS I
DH8210
DH8210.The horizontal coordinates were established by GPS observations
DH8210.and adjusted by the National Geodetic Survey in February 2006..
DH8210
DH8210.The orthometric height was determined by GPS observations and a
DH8210.high-resolution geoid model using precise GPS observation and
DH8210.processing techniques.
DH8210
DH8210.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8210
DH8210.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8210
DH8210.The ellipsoidal height was determined by GPS observations
DH8210.and is referenced to NAD 83.
DH8210
DH8210.The geoid height was determined by GEOID03.
DH8210
DH8210; North East Units Scale Factor Converg.
DH8210;SPC MD - 84,803.114 478,935.852 MT 0.99998032 +0 34 02.6
DH8210;SPC MD - 278,224.88 1,571,308.71 sFT 0.99998032 +0 34 02.6
DH8210;UTM 18 - 4,253,774.123 404,334.422 MT 0.99971271 -0 40 52.4
DH8210
DH8210! - Elev Factor x Scale Factor = Combined Factor
DH8210!SPC MD - 1.00000547 x 0.99998032 = 0.99998578
DH8210!UTM 18 - 1.00000547 x 0.99971271 = 0.99971817
DH8210
DH8210 SUPERSEDED SURVEY CONTROL
DH8210
DH8210.No superseded survey control is available for this station.
DH8210
DH8210_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0433453774(NAD 83)
DH8210_MARKER: Z = SEE DESCRIPTION
DH8210_SETTING: 0 = UNSPECIFIED SETTING
DH8210_SP_SET: USGS MEASURING DEVICE
DH8210_MARK LOGO: NONE
DH8210_MAGNETIC: O = OTHER; SEE DESCRIPTION
DH8210_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
DH8210_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8210+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
DH8210
DH8210 HISTORY - Date Condition Report By
DH8210 HISTORY - 20050920 MONUMENTED USGS
DH8210
DH8210 STATION DESCRIPTION
DH8210
DH8210'DESCRIBED BY US GEOLOGICAL SURVEY 2005 (GS)
DH8210'NO DESCRIPTION PUBLISHED AS MARK IS UNAVAILABLE EXCEPT TO OFFICIAL
DH8210'RESEARCH PERSONNEL.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8202 ***********************************************************************
DH8202 HT_MOD - This is a Height Modernization Survey Station.
DH8202 DESIGNATION - 857 1421 A TIDAL
DH8202 PID - DH8202
DH8202 STATE/COUNTY- MD/DORCHESTER
DH8202 USGS QUAD - BLOODSWORTH ISLAND (1973)
DH8202
DH8202 *CURRENT SURVEY CONTROL
DH8202 ___________________________________________________________________
DH8202* NAD 83(1991)- 38 13 16.99180(N) 076 02 17.19362(W) ADJUSTED
DH8202* NAVD 88 - 0.80 (meters) 2.6 (feet) GPS OBS
DH8202 ___________________________________________________________________
DH8202 X - 1,210,540.878 (meters) COMP
DH8202 Y - -4,869,008.522 (meters) COMP
DH8202 Z - 3,924,757.438 (meters) COMP
DH8202 LAPLACE CORR- -2.16 (seconds) DEFLEC99
DH8202 ELLIP HEIGHT- -34.77 (meters) (02/28/06) GPS OBS
DH8202 GEOID HEIGHT- -35.57 (meters) GEOID03
DH8202
DH8202 HORZ ORDER - B
DH8202 ELLP ORDER - FIFTH CLASS I
DH8202
DH8202.The horizontal coordinates were established by GPS observations
DH8202.and adjusted by the National Geodetic Survey in February 2006..
DH8202
DH8202.The orthometric height was determined by GPS observations and a
DH8202.high-resolution geoid model using precise GPS observation and
DH8202.processing techniques.
DH8202
DH8202.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8202
DH8202.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8202
DH8202.The ellipsoidal height was determined by GPS observations
DH8202.and is referenced to NAD 83.
DH8202
DH8202.The geoid height was determined by GEOID03.
DH8202
DH8202; North East Units Scale Factor Converg.
DH8202;SPC MD - 62,020.359 484,230.280 MT 1.00001461 +0 36 13.4
DH8202;SPC MD - 203,478.46 1,588,678.84 sFT 1.00001461 +0 36 13.4
DH8202;UTM 18 - 4,230,888.140 409,130.277 MT 0.99970169 -0 38 32.4
DH8202
DH8202! - Elev Factor x Scale Factor = Combined Factor
DH8202!SPC MD - 1.00000546 x 1.00001461 = 1.00002007
DH8202!UTM 18 - 1.00000546 x 0.99970169 = 0.99970714
DH8202
DH8202 SUPERSEDED SURVEY CONTROL
DH8202
DH8202.No superseded survey control is available for this station.
DH8202
DH8202_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0913030888(NAD 83)
DH8202_MARKER: DJ = TIDAL STATION DISK
DH8202_SETTING: 35 = SET IN A MAT FOUNDATION OR CONCRETE SLAB OTHER THAN
DH8202+WITH SETTING: PAVEMENT
DH8202_SP_SET: CONCRETE STAGING PAD
DH8202_STAMPING: 1421 A 2005
DH8202_MARK LOGO: NOS
DH8202_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
DH8202+STABILITY: SURFACE MOTION
DH8202_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8202+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
DH8202
DH8202 HISTORY - Date Condition Report By
DH8202 HISTORY - UNK MONUMENTED NOS
DH8202 HISTORY - 20050920 GOOD NGS
DH8202
DH8202 STATION DESCRIPTION
DH8202
DH8202'DESCRIBED BY NATIONAL GEODETIC SURVEY 2005 (GS)
DH8202'TO REACH THE MARK FROM THE INTERSECTION OF US-50 AND ROUTE 16 IN
DH8202'CAMBRIDGE, MD, PROCEED SOUTH ON ROUTE 16 (CAMBRIDGE BELTWAY) FOR 11.7
DH8202'KM (7.3 MI), TURN LEFT (SOUTH) ONTO ROUTE 335 FOR 15.6 KM (9.7 MI),
DH8202'TURN LEFT (EAST) ONTO ROUTE 336, CONTINUE STRAIGHT (OFF ROUTE 336) ON
DH8202'PHILLIPS GUNNING CLUB ROAD FOR 1.6 KM (1.0 MI) UNTIL THE ROAD DEAD
DH8202'ENDS AT THE KAREN NOONAN CENTER.
DH8202'
DH8202'THE PRIMARY BENCH MARK IS A DISK SET FLUSH IN THE TOP OF A CONCRETE
DH8202'STAGING PAD LOCATED NNW FROM THE KAREN NOONAN CENTER, 29.20 M (95.8
DH8202'FT) NNW FROM THE NE CORNER OF THE KAREN NOONAN CENTER, 26.71 M (87.6
DH8202'FT) WEST FROM THE NW CORNER OF A WHITE TWO STORY HOUSE, 0.65 M (2.1
DH8202'FT) SOUTH FROM THE NW CORNER OF A 11 M (36.1 FT) X 4 M (13.1 FT)
DH8202'CONCRETE STAGING PAD, AND 0.16 M (0.5 FT) NE FROM THE SW EDGE OF AN
DH8202'11 M (36.1 FT) X 4 M (13.1 FT) CONCRETE STAGING PAD.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8204 ***********************************************************************
DH8204 HT_MOD - This is a Height Modernization Survey Station.
DH8204 DESIGNATION - 857 1702 A TIDAL
DH8204 PID - DH8204
DH8204 STATE/COUNTY- MD/DORCHESTER
DH8204 USGS QUAD - GOLDEN HILL (1981)
DH8204
DH8204 *CURRENT SURVEY CONTROL
DH8204 ___________________________________________________________________
DH8204* NAD 83(1991)- 38 25 42.45700(N) 076 14 18.83579(W) ADJUSTED
DH8204* NAVD 88 - 1.04 (meters) 3.4 (feet) GPS OBS
DH8204 ___________________________________________________________________
DH8204 X - 1,190,108.176 (meters) COMP
DH8204 Y - -4,859,370.000 (meters) COMP
DH8204 Z - 3,942,790.380 (meters) COMP
DH8204 LAPLACE CORR- -6.66 (seconds) DEFLEC99
DH8204 ELLIP HEIGHT- -33.81 (meters) (02/28/06) GPS OBS
DH8204 GEOID HEIGHT- -34.83 (meters) GEOID03
DH8204
DH8204 HORZ ORDER - B
DH8204 ELLP ORDER - FIFTH CLASS I
DH8204
DH8204.The horizontal coordinates were established by GPS observations
DH8204.and adjusted by the National Geodetic Survey in February 2006..
DH8204
DH8204.The orthometric height was determined by GPS observations and a
DH8204.high-resolution geoid model using precise GPS observation and
DH8204.processing techniques.
DH8204
DH8204.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8204
DH8204.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8204
DH8204.The ellipsoidal height was determined by GPS observations
DH8204.and is referenced to NAD 83.
DH8204
DH8204.The geoid height was determined by GEOID03.
DH8204
DH8204; North East Units Scale Factor Converg.
DH8204;SPC MD - 84,839.511 466,485.592 MT 0.99998014 +0 28 40.4
DH8204;SPC MD - 278,344.30 1,530,461.48 sFT 0.99998014 +0 28 40.4
DH8204;UTM 18 - 4,254,081.645 391,891.049 MT 0.99974393 -0 46 11.6
DH8204
DH8204! - Elev Factor x Scale Factor = Combined Factor
DH8204!SPC MD - 1.00000531 x 0.99998014 = 0.99998544
DH8204!UTM 18 - 1.00000531 x 0.99974393 = 0.99974923
DH8204
DH8204 SUPERSEDED SURVEY CONTROL
DH8204
DH8204.No superseded survey control is available for this station.
DH8204
DH8204_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH9189154082(NAD 83)
DH8204_MARKER: I = METAL ROD
DH8204_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+)
DH8204_STAMPING: 1702 A 2005
DH8204_MARK LOGO: NOS
DH8204_PROJECTION: FLUSH
DH8204_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
DH8204_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8204+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
DH8204_ROD/PIPE-DEPTH: 57.3 meters
DH8204_SLEEVE-DEPTH : 0.6 meters
DH8204
DH8204 HISTORY - Date Condition Report By
DH8204 HISTORY - UNK MONUMENTED NOS
DH8204 HISTORY - 20050920 GOOD NGS
DH8204
DH8204 STATION DESCRIPTION
DH8204
DH8204'DESCRIBED BY NATIONAL GEODETIC SURVEY 2005 (GS)
DH8204'TO REACH FROM THE INTERSECTION OF MD-16 AND MD-341 FOLLOW MD-16 EAST,
DH8204'13.3 MILES. TURN LEFT ONTO SMITHVILLE ROAD AND FOLLOW THE ROAD 4.6
DH8204'MILES (7.4 KM) TO THE BOAT RAMP. THE BENCHMARK IS SOUTH OF THE RAMP
DH8204'ALONG SMITHVILLE ROAD.
DH8204'
DH8204'THE BENCH MARK IS A FLANGE-ENCASED ROD LOCATED ON THE WEST SIDE OF
DH8204'SMITHVILLE ROAD, 39.68 M (130.2 FT) WSW OF POLE 514059, 38.89 M
DH8204'(127.6 FT) SW OF POWER POLE 684, 4.11 M (13.5 FT) FROM THE CENTERLINE
DH8204'OF THE ROAD, AND 0.70 M (2.3 FT) FROM AN ORANGE WITNESS POST. THE
DH8204'DATUM POINT IS SET FLUSH WITH THE GROUND, BEING THE TOP OF A STAINLESS
DH8204'STEEL ROD DRIVEN 57.4 M (188.3 FT) TO REFUSAL, WITH A SLEEVE
DH8204'EXTENDING TO A DEPTH OF 0.6 M (2.0 FT) AND ENCASED IN A 5-INCH PVC
DH8204'PIPE WITH A 5-INCH NOS LOGO CAP AND CONCRETE KICKBLOCK.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
AC6854 ***********************************************************************
AC6854 HT_MOD - This is a Height Modernization Survey Station.
AC6854 FBN - This is a Federal Base Network Control Station.
AC6854 TIDAL BM - This is a Tidal Bench Mark.
AC6854 DESIGNATION - 857 1892 D TIDAL
AC6854 PID - AC6854
AC6854 STATE/COUNTY- MD/DORCHESTER
AC6854 USGS QUAD - CAMBRIDGE (1988)
AC6854
AC6854 *CURRENT SURVEY CONTROL
AC6854 ___________________________________________________________________
AC6854* NAD 83(1991)- 38 34 21.29029(N) 076 04 09.89409(W) ADJUSTED
AC6854* NAVD 88 - 2.30 (meters) 7.5 (feet) GPS OBS
AC6854 ___________________________________________________________________
AC6854 X - 1,202,051.529 (meters) COMP
AC6854 Y - -4,846,169.914 (meters) COMP
AC6854 Z - 3,955,311.236 (meters) COMP
AC6854 LAPLACE CORR- -3.35 (seconds) DEFLEC99
AC6854 ELLIP HEIGHT- -32.72 (meters) (02/28/06) GPS OBS
AC6854 GEOID HEIGHT- -35.01 (meters) GEOID03
AC6854
AC6854 HORZ ORDER - A
AC6854 ELLP ORDER - FIFTH CLASS I
AC6854
AC6854.The horizontal coordinates were established by GPS observations
AC6854.and adjusted by the National Geodetic Survey in February 2002..
AC6854
AC6854.The orthometric height was determined by GPS observations and a
AC6854.high-resolution geoid model using precise GPS observation and
AC6854.processing techniques.
AC6854
AC6854.This Tidal Bench Mark is designated as VM 409
AC6854.by the Center for Operational Oceanographic Products and Services.
AC6854
AC6854.This Tidal Bench Mark is designated as VM 13432
AC6854.by the Center for Operational Oceanographic Products and Services.
AC6854
AC6854.The X, Y, and Z were computed from the position and the ellipsoidal ht.
AC6854
AC6854.The Laplace correction was computed from DEFLEC99 derived deflections.
AC6854
AC6854.The ellipsoidal height was determined by GPS observations
AC6854.and is referenced to NAD 83.
AC6854
AC6854.The geoid height was determined by GEOID03.
AC6854
AC6854; North East Units Scale Factor Converg.
AC6854;SPC MD - 100,973.319 481,091.633 MT 0.99996377 +0 35 02.6
AC6854;SPC MD - 331,276.63 1,578,381.47 sFT 0.99996377 +0 35 02.6
AC6854;UTM 18 - 4,269,889.243 406,841.719 MT 0.99970687 -0 40 00.6
AC6854
AC6854! - Elev Factor x Scale Factor = Combined Factor
AC6854!SPC MD - 1.00000513 x 0.99996377 = 0.99996890
AC6854!UTM 18 - 1.00000513 x 0.99970687 = 0.99971200
AC6854
AC6854 SUPERSEDED SURVEY CONTROL
AC6854
AC6854 ELLIP H (02/12/02) -32.76 (m) GP( ) 4 1
AC6854
AC6854.Superseded values are not recommended for survey control.
AC6854.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AC6854.See file dsdata.txt to determine how the superseded data were derived.
AC6854
AC6854_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0684269889(NAD 83)
AC6854_MARKER: DJ = TIDAL STATION DISK
AC6854_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+)
AC6854_STAMPING: 1892 D 1980
AC6854_MARK LOGO: NOS
AC6854_PROJECTION: RECESSED 9 CENTIMETERS
AC6854_MAGNETIC: N = NO MAGNETIC MATERIAL
AC6854_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
AC6854_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AC6854+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
AC6854_ROD/PIPE-DEPTH: 11.0 meters
AC6854
AC6854 HISTORY - Date Condition Report By
AC6854 HISTORY - 1980 MONUMENTED NOS
AC6854 HISTORY - 19950419 GOOD NOS
AC6854 HISTORY - 20000216 GOOD NGS
AC6854 HISTORY - 20050704 GOOD USPSQD
AC6854 HISTORY - 20050920 GOOD NGS
AC6854
AC6854 STATION DESCRIPTION
AC6854
AC6854'DESCRIBED BY NATIONAL OCEAN SERVICE 1995 (JRS)
AC6854'THE BENCH MARK IS SET ALONG THE EAST SIDE OF HAYWARD STREET LOCATED IN
AC6854'THE CAMBRIDGE MARINE TERMINAL GROUNDS, 31.5 M (103.3 FT) WEST OF THE
AC6854'SOUTH CORNER OF CONVENTION CENTER, 29.0 M (95.1 FT) SE OF THE BULKHEAD
AC6854'FACE, 26.5 M (86.9 FT) SOUTH OF THE SW OF THE CONVENTION CENTER, 4.6 M
AC6854'(15.1 FT) WNW OF THE WEST CORNER OF THE STORM DRAIN, AND 0.5 M (1.6
AC6854'FT) SE OF A POWER POLE NO 33471-00805. THE BENCH MARK IS CRIMPED TO A
AC6854'STAINLESS STEEL ROD DRIVEN AN UNSPECIFIED DEPTH TO REFUSAL, AND
AC6854'ENCASED IN A 4-INCH PVC PIPE AND CONCRETE KICKBLOCK.
AC6854
AC6854 STATION RECOVERY (2000)
AC6854
AC6854'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2000 (MLM)
AC6854'THE STATION IS LOCATED IN THE NORTHEAST SECTION OF CAMBRIDGE ALONG THE
AC6854'EAST SIDE OF THE NORTH END OF HAYWARD STREET ON THE PROPERTY OF
AC6854'SAILWINDS PARK LOCATED ALONG THE NORTH BANK OF THE CHOPTANK RIVER,
AC6854'ABOUT O.64 KM NORTHWEST OF THE SOUTH END OF THE US HIGHWAY 50 BRIDGE
AC6854'OVER THE RIVER. OWNERSHIP--CITY OF CAMBRIDGE. TO REACH THE STATION
AC6854'FROM THE JUNCTION OF US HIGHWAY 50 AND MARYLAND AVENUE LOCATED ABOUT
AC6854'0.32 KM (0.20 MI) SOUTH OF THE SOUTH END OF THE US HIGHWAY 50 BRIDGE
AC6854'OVER THE CHOPTANK RIVER, GO NORTHWEST ON MARYLAND AVENUE FOR 0.64 KM
AC6854'(0.40 MI) TO THE JUNCTION OF HAYWARD STREET ON THE RIGHT, TURN RIGHT,
AC6854'NORTHEAST ON HAYWARD AVENUE FOR 0.24 KM (0.15 MI) TO THE END OF
AC6854'HAYWARD STREET AND PARKING AREA AND STATION ON THE RIGHT ON THE EAST
AC6854'SIDE OF A POWER POLE WITH THREE TRANSFORMERS. THE STATION IS AN NOS
AC6854'TIDAL DISK (PRIMARY BENCH MARK) , CRIMPED TO THE TOP OF A STAINLESS
AC6854'STEEL ROD ENCASED IN A 10-CM PVC PIPE SURROUNDED BY CONCRETE ABOUT
AC6854'5-CM BELOW THE GROUND, LOCATED 15.94 M (52.30 FT) WEST-SOUTHWEST OF
AC6854'THE INCLINED CONCRETE ENTRANCE WALK TO GOVERNORS HALL BUILDING, 4.75 M
AC6854'(15.58 FT) EAST-SOUTHEAST OF THE WEST CORNER POST OF A WOOD FENCE,
AC6854'4.66 M (15.29 FT) WEST-NORTHWEST OF THE WEST CORNER OF A METAL STORM
AC6854'DRAIN, 0.61 M (2.00 FT) EAST OF A POWER POLE (NUMBER 33471-00805) WITH
AC6854'THREE TRANSFORMERS AND A METAL WITNESS POST SIGN ATTACHED, 0.45 M
AC6854'(1.48 FT) SOUTHEAST OF A CABLE JUNCTION BOX (NUMBER 6) LOCATED ON THE
AC6854'NORTHEAST SIDE OF THE POWER POLE DESCRIBED ABOVE.
AC6854
AC6854 STATION RECOVERY (2005)
AC6854
AC6854'RECOVERY NOTE BY US POWER SQUADRON 2005 (BRE)
AC6854'AS DESCRIBED
AC6854
AC6854 STATION RECOVERY (2005)
AC6854
AC6854'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2005 (GS)
AC6854'RECOVERED AS DESCRIBED.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
HV0447 ***********************************************************************
HV0447 DESIGNATION - A 52
HV0447 PID - HV0447
HV0447 STATE/COUNTY- MD/DORCHESTER
HV0447 USGS QUAD - GOLDEN HILL (1981)
HV0447
HV0447 *CURRENT SURVEY CONTROL
HV0447 ___________________________________________________________________
HV0447* NAD 83(1991)- 38 23 54.48069(N) 076 13 43.55080(W) ADJUSTED
HV0447* NAVD 88 - 0.292 (meters) 0.96 (feet) ADJUSTED
HV0447 ___________________________________________________________________
HV0447 X - 1,191,431.712 (meters) COMP
HV0447 Y - -4,861,174.895 (meters) COMP
HV0447 Z - 3,940,181.136 (meters) COMP
HV0447 LAPLACE CORR- -6.60 (seconds) DEFLEC99
HV0447 ELLIP HEIGHT- -34.64 (meters) (02/28/06) GPS OBS
HV0447 GEOID HEIGHT- -34.92 (meters) GEOID03
HV0447 DYNAMIC HT - 0.292 (meters) 0.96 (feet) COMP
HV0447 MODELED GRAV- 980,010.9 (mgal) NAVD 88
HV0447
HV0447 HORZ ORDER - B
HV0447 VERT ORDER - FIRST CLASS II
HV0447 ELLP ORDER - FIFTH CLASS I
HV0447
HV0447.The horizontal coordinates were established by GPS observations
HV0447.and adjusted by the National Geodetic Survey in February 2006..
HV0447
HV0447.The orthometric height was determined by differential leveling
HV0447.and adjusted by the National Geodetic Survey in June 1991..
HV0447
HV0447.The X, Y, and Z were computed from the position and the ellipsoidal ht.
HV0447
HV0447.The Laplace correction was computed from DEFLEC99 derived deflections.
HV0447
HV0447.The ellipsoidal height was determined by GPS observations
HV0447.and is referenced to NAD 83.
HV0447
HV0447.The geoid height was determined by GEOID03.
HV0447
HV0447.The dynamic height is computed by dividing the NAVD 88
HV0447.geopotential number by the normal gravity value computed on the
HV0447.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
HV0447.degrees latitude (g = 980.6199 gals.).
HV0447
HV0447.The modeled gravity was interpolated from observed gravity values.
HV0447
HV0447; North East Units Scale Factor Converg.
HV0447;SPC MD - 81,517.474 467,369.519 MT 0.99998433 +0 29 02.6
HV0447;SPC MD - 267,445.25 1,533,361.50 sFT 0.99998433 +0 29 02.6
HV0447;UTM 18 - 4,250,741.950 392,702.243 MT 0.99974178 -0 45 47.8
HV0447
HV0447! - Elev Factor x Scale Factor = Combined Factor
HV0447!SPC MD - 1.00000544 x 0.99998433 = 0.99998977
HV0447!UTM 18 - 1.00000544 x 0.99974178 = 0.99974721
HV0447
HV0447 SUPERSEDED SURVEY CONTROL
HV0447
HV0447 NAVD 88 (02/28/06) 0.29 (m) 1.0 (f) LEVELING 3
HV0447 NGVD 29 (??/??/??) 0.529 (m) 1.74 (f) ADJUSTED 1 2
HV0447
HV0447.Superseded values are not recommended for survey control.
HV0447.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV0447.See file dsdata.txt to determine how the superseded data were derived.
HV0447
HV0447_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH9270250742(NAD 83)
HV0447_MARKER: DB = BENCH MARK DISK
HV0447_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
HV0447_SP_SET: SET IN TOP OF CONCRETE MONUMENT
HV0447_STAMPING: A 52 1942
HV0447_MARK LOGO: CGS
HV0447_MAGNETIC: N = NO MAGNETIC MATERIAL
HV0447_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
HV0447+STABILITY: SURFACE MOTION
HV0447_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
HV0447+SATELLITE: SATELLITE OBSERVATIONS - February 25, 2006
HV0447
HV0447 HISTORY - Date Condition Report By
HV0447 HISTORY - 1942 MONUMENTED CGS
HV0447 HISTORY - 1971 GOOD NGS
HV0447 HISTORY - 20050920 GOOD NGS
HV0447 HISTORY - 20060225 GOOD USPSQD
HV0447
HV0447 STATION DESCRIPTION
HV0447
HV0447'DESCRIBED BY NATIONAL GEODETIC SURVEY 1971
HV0447'0.1 MI N FROM GOLDEN HILL.
HV0447'ABOUT 0.1 MILE NORTH ALONG SMITHVILLE ROAD FROM THE SOUTH
HV0447'JUNCTION OF STATE HIGHWAY 335 AT GOLDEN HILL, 34 1/2 FEET EAST
HV0447'OF THE CENTER LINE OF THE ROAD, 118 1/2 FEET NORTH OF THE CENTER
HV0447'LINE OF A PAVED ROAD THAT LEADS SOUTHEAST TO STATE HIGHWAY 335,
HV0447'92 FEET NORTHEAST AND ACROSS SMITHVILLE ROAD FROM TELEPHONE
HV0447'POLE NUMBER 752, 76 1/2 FEET SOUTH-SOUTHEAST OF A POWER POLE,
HV0447'0.9 FOOT SOUTH OF A METAL WITNESS POST, ABOUT LEVEL WITH THE
HV0447'ROAD, AND SET IN THE TOP OF A CONCRETE POST PROJECTING 1 INCH.
HV0447
HV0447 STATION RECOVERY (2005)
HV0447
HV0447'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2005 (GS)
HV0447'RECOVERED 1 FT WEST OF A FIBERGLASS WITNESS POST.
HV0447
HV0447 STATION RECOVERY (2006)
HV0447
HV0447'RECOVERY NOTE BY US POWER SQUADRON 2006 (NLH)
HV0447'METAL WITNESS POST IS DOWN. THERE IS A CARSONITE POST. MARK IS 6
HV0447'INCHES UNDER WATER, BUT READABLE. N 38 23 54 W 076 13 44
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8201 ***********************************************************************
DH8201 HT_MOD - This is a Height Modernization Survey Station.
DH8201 DESIGNATION - BARBADOS SITE EAST SET
DH8201 PID - DH8201
DH8201 STATE/COUNTY- MD/DORCHESTER
DH8201 USGS QUAD - BLACKWATER RIVER (1982)
DH8201
DH8201 *CURRENT SURVEY CONTROL
DH8201 ___________________________________________________________________
DH8201* NAD 83(1991)- 38 24 56.12680(N) 076 05 11.39205(W) ADJUSTED
DH8201* NAVD 88 - 0.37 (meters) 1.2 (feet) GPS OBS
DH8201 ___________________________________________________________________
DH8201 X - 1,203,214.411 (meters) COMP
DH8201 Y - -4,857,055.178 (meters) COMP
DH8201 Z - 3,941,670.512 (meters) COMP
DH8201 LAPLACE CORR- -2.66 (seconds) DEFLEC99
DH8201 ELLIP HEIGHT- -34.86 (meters) (02/28/06) GPS OBS
DH8201 GEOID HEIGHT- -35.23 (meters) GEOID03
DH8201
DH8201 HORZ ORDER - B
DH8201 ELLP ORDER - FIFTH CLASS I
DH8201
DH8201.The horizontal coordinates were established by GPS observations
DH8201.and adjusted by the National Geodetic Survey in February 2006..
DH8201
DH8201.The orthometric height was determined by GPS observations and a
DH8201.high-resolution geoid model using precise GPS observation and
DH8201.processing techniques.
DH8201
DH8201.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8201
DH8201.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8201
DH8201.The ellipsoidal height was determined by GPS observations
DH8201.and is referenced to NAD 83.
DH8201
DH8201.The geoid height was determined by GEOID03.
DH8201
DH8201; North East Units Scale Factor Converg.
DH8201;SPC MD - 83,532.848 479,777.460 MT 0.99998190 +0 34 24.0
DH8201;SPC MD - 274,057.35 1,574,069.88 sFT 0.99998190 +0 34 24.0
DH8201;UTM 18 - 4,252,486.167 405,147.932 MT 0.99971080 -0 40 30.6
DH8201
DH8201! - Elev Factor x Scale Factor = Combined Factor
DH8201!SPC MD - 1.00000547 x 0.99998190 = 0.99998737
DH8201!UTM 18 - 1.00000547 x 0.99971080 = 0.99971627
DH8201
DH8201 SUPERSEDED SURVEY CONTROL
DH8201
DH8201.No superseded survey control is available for this station.
DH8201
DH8201_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0514852486(NAD 83)
DH8201_MARKER: Z = SEE DESCRIPTION
DH8201_SETTING: 0 = UNSPECIFIED SETTING
DH8201_SP_SET: TBD
DH8201_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
DH8201_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8201+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
DH8201
DH8201 HISTORY - Date Condition Report By
DH8201 HISTORY - 20050920 MONUMENTED USGS
DH8201
DH8201 STATION DESCRIPTION
DH8201
DH8201'DESCRIBED BY US GEOLOGICAL SURVEY 2005 (GS)
DH8201'NO DESCRIPTION PUBLISHED AS MARK IS UNAVAILABLE EXCEPT TO OFFICIAL
DH8201'RESEARCH PERSONNEL.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8211 ***********************************************************************
DH8211 HT_MOD - This is a Height Modernization Survey Station.
DH8211 DESIGNATION - BLACKWATER BURN SET 7A4
DH8211 PID - DH8211
DH8211 STATE/COUNTY- MD/DORCHESTER
DH8211 USGS QUAD - BLACKWATER RIVER (1982)
DH8211
DH8211 *CURRENT SURVEY CONTROL
DH8211 ___________________________________________________________________
DH8211* NAD 83(1991)- 38 23 47.49760(N) 076 04 11.62882(W) ADJUSTED
DH8211* NAVD 88 - 0.32 (meters) 1.0 (feet) GPS OBS
DH8211 ___________________________________________________________________
DH8211 X - 1,204,938.102 (meters) COMP
DH8211 Y - -4,857,982.224 (meters) COMP
DH8211 Z - 3,940,012.188 (meters) COMP
DH8211 LAPLACE CORR- -2.34 (seconds) DEFLEC99
DH8211 ELLIP HEIGHT- -34.96 (meters) (02/28/06) GPS OBS
DH8211 GEOID HEIGHT- -35.27 (meters) GEOID03
DH8211
DH8211 HORZ ORDER - B
DH8211 ELLP ORDER - FIFTH CLASS I
DH8211
DH8211.The horizontal coordinates were established by GPS observations
DH8211.and adjusted by the National Geodetic Survey in February 2006..
DH8211
DH8211.The orthometric height was determined by GPS observations and a
DH8211.high-resolution geoid model using precise GPS observation and
DH8211.processing techniques.
DH8211
DH8211.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8211
DH8211.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8211
DH8211.The ellipsoidal height was determined by GPS observations
DH8211.and is referenced to NAD 83.
DH8211
DH8211.The geoid height was determined by GEOID03.
DH8211
DH8211; North East Units Scale Factor Converg.
DH8211;SPC MD - 81,431.486 481,248.751 MT 0.99998461 +0 35 01.6
DH8211;SPC MD - 267,163.13 1,578,896.94 sFT 0.99998461 +0 35 01.6
DH8211;UTM 18 - 4,250,353.833 406,572.700 MT 0.99970749 -0 39 52.4
DH8211
DH8211! - Elev Factor x Scale Factor = Combined Factor
DH8211!SPC MD - 1.00000549 x 0.99998461 = 0.99999010
DH8211!UTM 18 - 1.00000549 x 0.99970749 = 0.99971297
DH8211
DH8211: Primary Azimuth Mark Grid Az
DH8211:SPC MD - BLACKWATER NO BURN SET 7D1 008 12 29.5
DH8211:UTM 18 - BLACKWATER NO BURN SET 7D1 009 27 23.5
DH8211
DH8211|---------------------------------------------------------------------|
DH8211| PID Reference Object Distance Geod. Az |
DH8211| dddmmss.s |
DH8211| DH8212 BLACKWATER NO BURN SET 7D1 APPROX. 1.2 KM 0084731.1 |
DH8211|---------------------------------------------------------------------|
DH8211
DH8211 SUPERSEDED SURVEY CONTROL
DH8211
DH8211.No superseded survey control is available for this station.
DH8211
DH8211_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0657350354(NAD 83)
DH8211_MARKER: Z = SEE DESCRIPTION
DH8211_SETTING: 0 = UNSPECIFIED SETTING
DH8211_SP_SET: USGS MEASURING DEVICE
DH8211_MARK LOGO: NONE
DH8211_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
DH8211_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8211+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
DH8211
DH8211 HISTORY - Date Condition Report By
DH8211 HISTORY - 20050920 MONUMENTED USGS
DH8211
DH8211 STATION DESCRIPTION
DH8211
DH8211'DESCRIBED BY US GEOLOGICAL SURVEY 2005 (GS)
DH8211'NO DESCRIPTION PUBLISHED AS MARK IS UNAVAILABLE EXCEPT TO OFFICIAL
DH8211'RESEARCH PERSONNEL.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8212 ***********************************************************************
DH8212 HT_MOD - This is a Height Modernization Survey Station.
DH8212 DESIGNATION - BLACKWATER NO BURN SET 7D1
DH8212 PID - DH8212
DH8212 STATE/COUNTY- MD/DORCHESTER
DH8212 USGS QUAD - BLACKWATER RIVER (1982)
DH8212
DH8212 *CURRENT SURVEY CONTROL
DH8212 ___________________________________________________________________
DH8212* NAD 83(1991)- 38 24 26.30215(N) 076 04 04.00138(W) ADJUSTED
DH8212* NAVD 88 - 0.31 (meters) 1.0 (feet) GPS OBS
DH8212 ___________________________________________________________________
DH8212 X - 1,204,938.791 (meters) COMP
DH8212 Y - -4,857,216.287 (meters) COMP
DH8212 Z - 3,940,949.861 (meters) COMP
DH8212 LAPLACE CORR- -2.33 (seconds) DEFLEC99
DH8212 ELLIP HEIGHT- -34.96 (meters) (02/28/06) GPS OBS
DH8212 GEOID HEIGHT- -35.26 (meters) GEOID03
DH8212
DH8212 HORZ ORDER - B
DH8212 ELLP ORDER - FIFTH CLASS I
DH8212
DH8212.The horizontal coordinates were established by GPS observations
DH8212.and adjusted by the National Geodetic Survey in February 2006..
DH8212
DH8212.The orthometric height was determined by GPS observations and a
DH8212.high-resolution geoid model using precise GPS observation and
DH8212.processing techniques.
DH8212
DH8212.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8212
DH8212.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8212
DH8212.The ellipsoidal height was determined by GPS observations
DH8212.and is referenced to NAD 83.
DH8212
DH8212.The geoid height was determined by GEOID03.
DH8212
DH8212; North East Units Scale Factor Converg.
DH8212;SPC MD - 82,629.810 481,421.607 MT 0.99998307 +0 35 06.3
DH8212;SPC MD - 271,094.63 1,579,464.06 sFT 0.99998307 +0 35 06.3
DH8212;UTM 18 - 4,251,547.776 406,771.568 MT 0.99970704 -0 39 48.2
DH8212
DH8212! - Elev Factor x Scale Factor = Combined Factor
DH8212!SPC MD - 1.00000549 x 0.99998307 = 0.99998856
DH8212!UTM 18 - 1.00000549 x 0.99970704 = 0.99971252
DH8212
DH8212: Primary Azimuth Mark Grid Az
DH8212:SPC MD - BLACKWATER BURN SET 7A4 188 12 29.6
DH8212:UTM 18 - BLACKWATER BURN SET 7A4 189 27 24.1
DH8212
DH8212|---------------------------------------------------------------------|
DH8212| PID Reference Object Distance Geod. Az |
DH8212| dddmmss.s |
DH8212| DH8211 BLACKWATER BURN SET 7A4 APPROX. 1.2 KM 1884735.9 |
DH8212|---------------------------------------------------------------------|
DH8212
DH8212 SUPERSEDED SURVEY CONTROL
DH8212
DH8212.No superseded survey control is available for this station.
DH8212
DH8212_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0677251548(NAD 83)
DH8212_MARKER: Z = SEE DESCRIPTION
DH8212_SETTING: 0 = UNSPECIFIED SETTING
DH8212_SP_SET: USGS MEASURING DEVICE
DH8212_MARK LOGO: NONE
DH8212_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
DH8212_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8212+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
DH8212
DH8212 HISTORY - Date Condition Report By
DH8212 HISTORY - 20050920 MONUMENTED USGS
DH8212
DH8212 STATION DESCRIPTION
DH8212
DH8212'DESCRIBED BY US GEOLOGICAL SURVEY 2005 (GS)
DH8212'NO DESCRIPTION PUBLISHED AS MARK IS UNAVAILABLE EXCEPT TO OFFICIAL
DH8212'RESEARCH PERSONNEL.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8203 ***********************************************************************
DH8203 HT_MOD - This is a Height Modernization Survey Station.
DH8203 DESIGNATION - BOAT RAMP
DH8203 PID - DH8203
DH8203 STATE/COUNTY- MD/DORCHESTER
DH8203 USGS QUAD - GOLDEN HILL (1981)
DH8203
DH8203 *CURRENT SURVEY CONTROL
DH8203 ___________________________________________________________________
DH8203* NAD 83(1991)- 38 26 23.76787(N) 076 08 42.50221(W) ADJUSTED
DH8203* NAVD 88 - 0.97 (meters) 3.2 (feet) GPS OBS
DH8203 ___________________________________________________________________
DH8203 X - 1,197,840.568 (meters) COMP
DH8203 Y - -4,856,653.950 (meters) COMP
DH8203 Z - 3,943,787.983 (meters) COMP
DH8203 LAPLACE CORR- -4.16 (seconds) DEFLEC99
DH8203 ELLIP HEIGHT- -34.12 (meters) (02/28/06) GPS OBS
DH8203 GEOID HEIGHT- -35.09 (meters) GEOID03
DH8203
DH8203 HORZ ORDER - B
DH8203 ELLP ORDER - FIFTH CLASS I
DH8203
DH8203.The horizontal coordinates were established by GPS observations
DH8203.and adjusted by the National Geodetic Survey in February 2006..
DH8203
DH8203.The orthometric height was determined by GPS observations and a
DH8203.high-resolution geoid model using precise GPS observation and
DH8203.processing techniques.
DH8203
DH8203.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8203
DH8203.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8203
DH8203.The ellipsoidal height was determined by GPS observations
DH8203.and is referenced to NAD 83.
DH8203
DH8203.The geoid height was determined by GEOID03.
DH8203
DH8203; North East Units Scale Factor Converg.
DH8203;SPC MD - 86,185.451 474,631.045 MT 0.99997860 +0 32 11.5
DH8203;SPC MD - 282,760.10 1,557,185.35 sFT 0.99997860 +0 32 11.5
DH8203;UTM 18 - 4,255,249.548 400,061.876 MT 0.99972300 -0 42 43.1
DH8203
DH8203! - Elev Factor x Scale Factor = Combined Factor
DH8203!SPC MD - 1.00000535 x 0.99997860 = 0.99998395
DH8203!UTM 18 - 1.00000535 x 0.99972300 = 0.99972835
DH8203
DH8203 SUPERSEDED SURVEY CONTROL
DH8203
DH8203.No superseded survey control is available for this station.
DH8203
DH8203_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0006255250(NAD 83)
DH8203_MARKER: I = METAL ROD
DH8203_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+)
DH8203_STAMPING: BOAT RAMP 2005
DH8203_MARK LOGO: NONE
DH8203_PROJECTION: RECESSED 10 CENTIMETERS
DH8203_MAGNETIC: I = MARKER IS A STEEL ROD
DH8203_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
DH8203_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8203+SATELLITE: SATELLITE OBSERVATIONS - September 06, 2005
DH8203_ROD/PIPE-DEPTH: 25.0 meters
DH8203_SLEEVE-DEPTH : 0.5 meters
DH8203
DH8203 HISTORY - Date Condition Report By
DH8203 HISTORY - 20050906 MONUMENTED NGS
DH8203
DH8203 STATION DESCRIPTION
DH8203
DH8203'DESCRIBED BY NATIONAL GEODETIC SURVEY 2005 (FCM)
DH8203'MARK IS BELIEVED TO BE ON PROPERTY OF BLACKWATER NATIONAL WILDLIFE
DH8203'REFUGE, 0.1 MILE NORTH OF THE NE END OF STATE ROUTE 335 BRIDGE OVER
DH8203'BLACKWATER RIVER, AT THE NW CORNER OF THE ASPHALT PARKING AREA FOR
DH8203'THE BOAT RAMP.
DH8203'
DH8203'THE MARK IS TOP CENTER OF A STAINLESS STEEL ROD UNDER A LOGO CAP WITH
DH8203'NO AGENCY ID, WITHIN A 6-INCH PVC PIPE THAT IS SURROUNDED BY CONCRETE
DH8203'COLLAR. IT IS 48.5 FT WEST OF CENTERLINE OF TWO-LANE RT 335, 44.5 FT
DH8203'SW OF A POWER POLE, 27.5 FT WSW OF A REFUGE BOUNDARY SIGN, 7.3 FT
DH8203'EAST OF 1-INCH PVC PIPE PROJECTING 6 FT AT EDGE OF MARSH, 2.5 FT NW OF
DH8203'NW CORNER OF PAVEMENT. THE PARKING AREA IS ABOUT 240 FT LONG N-S AND
DH8203'35 FT WIDE E-W.
DH8203'
DH8203'THE LOGO CAP IS ABOUT 0.5 FT BELOW THE PAVEMENT. THE ROD WAS DRIVEN 82
DH8203'FT TO REFUSAL. THE ACCESS CAP IS HELD ON BY A SLOTTED-HEAD SCREW
DH8203'UNLESS THE SCREW GETS LOST.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
HV0221 ***********************************************************************
HV0221 DESIGNATION - E 120
HV0221 PID - HV0221
HV0221 STATE/COUNTY- MD/DORCHESTER
HV0221 USGS QUAD - CAMBRIDGE (1988)
HV0221
HV0221 *CURRENT SURVEY CONTROL
HV0221 ___________________________________________________________________
HV0221* NAD 83(1991)- 38 33 11.41531(N) 076 00 11.49829(W) ADJUSTED
HV0221* NAVD 88 - 6.649 (meters) 21.81 (feet) ADJUSTED
HV0221 ___________________________________________________________________
HV0221 X - 1,207,977.464 (meters) COMP
HV0221 Y - -4,846,083.816 (meters) COMP
HV0221 Z - 3,953,629.121 (meters) COMP
HV0221 LAPLACE CORR- -2.79 (seconds) DEFLEC99
HV0221 ELLIP HEIGHT- -28.51 (meters) (02/12/02) GPS OBS
HV0221 GEOID HEIGHT- -35.16 (meters) GEOID03
HV0221 DYNAMIC HT - 6.645 (meters) 21.80 (feet) COMP
HV0221 MODELED GRAV- 980,016.3 (mgal) NAVD 88
HV0221
HV0221 HORZ ORDER - A
HV0221 VERT ORDER - FIRST CLASS II
HV0221 ELLP ORDER - FOURTH CLASS I
HV0221
HV0221.The horizontal coordinates were established by GPS observations
HV0221.and adjusted by the National Geodetic Survey in February 2002..
HV0221
HV0221.The orthometric height was determined by differential leveling
HV0221.and adjusted by the National Geodetic Survey in June 1991..
HV0221
HV0221.The X, Y, and Z were computed from the position and the ellipsoidal ht.
HV0221
HV0221.The Laplace correction was computed from DEFLEC99 derived deflections.
HV0221
HV0221.The ellipsoidal height was determined by GPS observations
HV0221.and is referenced to NAD 83.
HV0221
HV0221.The geoid height was determined by GEOID03.
HV0221
HV0221.The dynamic height is computed by dividing the NAVD 88
HV0221.geopotential number by the normal gravity value computed on the
HV0221.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
HV0221.degrees latitude (g = 980.6199 gals.).
HV0221
HV0221.The modeled gravity was interpolated from observed gravity values.
HV0221
HV0221; North East Units Scale Factor Converg.
HV0221;SPC MD - 98,879.823 486,885.472 MT 0.99996561 +0 37 32.3
HV0221;SPC MD - 324,408.22 1,597,390.09 sFT 0.99996561 +0 37 32.3
HV0221;UTM 18 - 4,267,670.350 412,586.957 MT 0.99969410 -0 37 31.0
HV0221
HV0221! - Elev Factor x Scale Factor = Combined Factor
HV0221!SPC MD - 1.00000447 x 0.99996561 = 0.99997008
HV0221!UTM 18 - 1.00000447 x 0.99969410 = 0.99969857
HV0221
HV0221 SUPERSEDED SURVEY CONTROL
HV0221
HV0221 NAVD 88 (02/12/02) 6.65 (m) 21.8 (f) LEVELING 3
HV0221 NGVD 29 (??/??/??) 6.883 (m) 22.58 (f) ADJUSTED 1 2
HV0221
HV0221.Superseded values are not recommended for survey control.
HV0221.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV0221.See file dsdata.txt to determine how the superseded data were derived.
HV0221
HV0221_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH1258767670(NAD 83)
HV0221_MARKER: DB = BENCH MARK DISK
HV0221_SETTING: 16 = (FASTENED TO) A METAL ROD WITH BASE PLATE BURIED/SCREWED
HV0221+WITH SETTING: INTO GROUND
HV0221_STAMPING: E 120 1971
HV0221_MARK LOGO: NGS
HV0221_MAGNETIC: O = OTHER; SEE DESCRIPTION
HV0221_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
HV0221_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
HV0221+SATELLITE: SATELLITE OBSERVATIONS - September 09, 2005
HV0221
HV0221 HISTORY - Date Condition Report By
HV0221 HISTORY - 1971 MONUMENTED NGS
HV0221 HISTORY - 20000327 GOOD MDSHA
HV0221 HISTORY - 20050909 GOOD NGS
HV0221
HV0221 STATION DESCRIPTION
HV0221
HV0221'DESCRIBED BY NATIONAL GEODETIC SURVEY 1971
HV0221'3.4 MI NW FROM LINKWOOD.
HV0221'ABOUT 3.4 MILES NORTHWEST ALONG U.S. HIGHWAY 50 FROM THE POST
HV0221'OFFICE AT LINKWOOD, 195 FEET NORTHWEST OF THE CENTER OF THE
HV0221'JUNCTION OF STATE HIGHWAY 16, 130 FEET NORTH OF THE CENTER LINE
HV0221'OF THE NORTH LANES OF THE U.S. HIGHWAY, 161 FEET WEST OF THE
HV0221'CENTER LINE OF THE STATE HIGHWAY, 132 FEET SOUTHWEST OF POWER
HV0221'POLE NUMBER 85A-143, 134 FEET NORTHEAST OF THE SOUTHWEST END
HV0221'OF A GUARDRAIL, 132 FEET SOUTHWEST OF THE NORTHEAST END OF
HV0221'A GUARDRAIL, 1.4 FEET SOUTHWEST OF A METAL WITNESS POST, ABOUT
HV0221'1 FOOT BELOW THE LEVEL OF THE HIGHWAY, AND ON THE TOP OF A 4-FOOT
HV0221'SECTION OF COPPER COATED ROD THAT IS ATTACHED TO A METAL BASE
HV0221'PLATE. THE DISK IS 2 INCHES BELOW THE SURFACE OF THE GROUND
HV0221'AND IS PROTECTED BY A 5-INCH METAL PIPE THAT IS 1 INCH BELOW
HV0221'THE SURFACE OF THE GROUND. NOTE-- THIS MARK IS ALSO ABOUT 4.35
HV0221'MILES SOUTHEAST ALONG U.S. HIGHWAY 50 FROM THE SOUTH END OF
HV0221'THE HIGHWAY BRIDGE OVER THE CHOPTANK RIVER AT CAMBRIDGE.
HV0221
HV0221 STATION RECOVERY (2000)
HV0221
HV0221'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (SFK)
HV0221'RECOVERED AS DESCRIBED.
HV0221
HV0221 STATION RECOVERY (2005)
HV0221
HV0221'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2005 (JRO)
HV0221'RECOVERED AS DESCRIBED. IN GRASS FIELD (MOWED), ROUGHLY 8 FT SOUTHERLY
HV0221'FROM A WITNESS POST AT SOUTH EDGE OF CULTIVATED FIELD, ABOUT 1 FT
HV0221'NORTH OF A 1 INCH WHITE PVC PIPE AND 1 FT SOUTH OF A SMALL FENCE
HV0221'POST.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8205 ***********************************************************************
DH8205 HT_MOD - This is a Height Modernization Survey Station.
DH8205 DESIGNATION - EDGAR
DH8205 PID - DH8205
DH8205 STATE/COUNTY- MD/DORCHESTER
DH8205 USGS QUAD - CAMBRIDGE (1988)
DH8205
DH8205 *CURRENT SURVEY CONTROL
DH8205 ___________________________________________________________________
DH8205* NAD 83(1991)- 38 30 06.08592(N) 076 05 29.02830(W) ADJUSTED
DH8205* NAVD 88 - 1.42 (meters) 4.7 (feet) GPS OBS
DH8205 ___________________________________________________________________
DH8205 X - 1,201,370.493 (meters) COMP
DH8205 Y - -4,851,388.965 (meters) COMP
DH8205 Z - 3,949,155.296 (meters) COMP
DH8205 LAPLACE CORR- -3.29 (seconds) DEFLEC99
DH8205 ELLIP HEIGHT- -33.67 (meters) (02/28/06) GPS OBS
DH8205 GEOID HEIGHT- -35.09 (meters) GEOID03
DH8205
DH8205 HORZ ORDER - B
DH8205 ELLP ORDER - FIFTH CLASS I
DH8205
DH8205.The horizontal coordinates were established by GPS observations
DH8205.and adjusted by the National Geodetic Survey in February 2006..
DH8205
DH8205.The orthometric height was determined by GPS observations and a
DH8205.high-resolution geoid model using precise GPS observation and
DH8205.processing techniques.
DH8205
DH8205.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8205
DH8205.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8205
DH8205.The ellipsoidal height was determined by GPS observations
DH8205.and is referenced to NAD 83.
DH8205
DH8205.The geoid height was determined by GEOID03.
DH8205
DH8205; North East Units Scale Factor Converg.
DH8205;SPC MD - 93,085.396 479,254.518 MT 0.99997104 +0 34 13.0
DH8205;SPC MD - 305,397.67 1,572,354.20 sFT 0.99997104 +0 34 13.0
DH8205;UTM 18 - 4,262,045.310 404,833.441 MT 0.99971153 -0 40 46.2
DH8205
DH8205! - Elev Factor x Scale Factor = Combined Factor
DH8205!SPC MD - 1.00000528 x 0.99997104 = 0.99997632
DH8205!UTM 18 - 1.00000528 x 0.99971153 = 0.99971681
DH8205
DH8205 SUPERSEDED SURVEY CONTROL
DH8205
DH8205.No superseded survey control is available for this station.
DH8205
DH8205_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0483362045(NAD 83)
DH8205_MARKER: I = METAL ROD
DH8205_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+)
DH8205_STAMPING: EDGAR 2005
DH8205_MARK LOGO: NONE
DH8205_PROJECTION: RECESSED 15 CENTIMETERS
DH8205_MAGNETIC: I = MARKER IS A STEEL ROD
DH8205_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
DH8205_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8205+SATELLITE: SATELLITE OBSERVATIONS - September 07, 2005
DH8205_ROD/PIPE-DEPTH: 20.1 meters
DH8205_SLEEVE-DEPTH : 0.5 meters
DH8205
DH8205 HISTORY - Date Condition Report By
DH8205 HISTORY - 20050907 MONUMENTED NGS
DH8205
DH8205 STATION DESCRIPTION
DH8205
DH8205'DESCRIBED BY NATIONAL GEODETIC SURVEY 2005 (FCM)
DH8205'THIS MARK IS EITHER ON THE EAST EDGE OF COUNTY ROAD R.O.W. OR WEST
DH8205'EDGE OF PRIVATE PROPERTY (EDGAR FAMILY, RIVERDALE FARMS), AT THE
DH8205'FORMER SITE OF A SMALL CHURCH AND OF BENCHMARK X 52, AT A SMALL
DH8205'UNMARKED CEMETERY TO EAST AND TWO LARGE LONE TREES TO EAST. IT IS THE
DH8205'TOP CENTER OF A STAINLESS STEEL ROD UNDER A LOGO CAP WITH NO AGENCY
DH8205'ID, WITHIN A 6-INCH PVC PIPE THAT IS SURROUNDED BY A CONCRETE COLLAR.
DH8205'THE ACCESS LID IS HELD IN PLACE WITH A SLOTTED HEAD SCREW UNLESS THE
DH8205'SCREW GETS LOST.
DH8205'
DH8205'THE MARK IS 4.35 MILES NORTHERLY ALONG MAPLE DAM RD FROM KEY WALLACE
DH8205'DRIVE, 3.4 MILES SOUTH ALONG SAME FROM STATE ROUTE 16, 1.0 MILE SOUTH
DH8205'OF LUTHY LANE.
DH8205'
DH8205'IT IS BETWEEN THE NORTH END OF A GRAVEL PULL-OFF AREA AND A POWER POLE
DH8205'(NUMBERS 504, 127, 029), 6.5 FT SOUTH OF THE LINE BETWEEN THE POLE
DH8205'AND ITS GUY WIRE TO WEST, 38 FT WEST OF THE LARGER AND MORE WESTERLY
DH8205'TREE, 33 FT EAST OF CENTERLINE OF MAPLE DAM RD (TWO-LANE WITH GRASS
DH8205'OR NONEXISTENT SHOULDERS), 14.5 FT EAST OF CENTERLINE OF 24-INCH
DH8205'C.M.P. ALONG RD, 10.5 FT SW OF THE POLE, 7.0 FT WEST OF A 1-INCH PVC
DH8205'PIPE STICKING UP 8 FT. THE AREA AROUND THE MARK IS WILD GRASS THAT
DH8205'WILL PROBABLY GROW KIND OF HIGH.
DH8205'
DH8205'THE LOGO CAP IS FLUSH WITH THE GROUND. THE ROD IS 0.5 FT BELOW CAP.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8213 ***********************************************************************
DH8213 HT_MOD - This is a Height Modernization Survey Station.
DH8213 DESIGNATION - FISHING BAY BURN SET 8A1
DH8213 PID - DH8213
DH8213 STATE/COUNTY- MD/DORCHESTER
DH8213 USGS QUAD - NANTICOKE (1983)
DH8213
DH8213 *CURRENT SURVEY CONTROL
DH8213 ___________________________________________________________________
DH8213* NAD 83(1991)- 38 22 15.76590(N) 075 58 14.38128(W) ADJUSTED
DH8213* NAVD 88 - 0.55 (meters) 1.8 (feet) GPS OBS
DH8213 ___________________________________________________________________
DH8213 X - 1,213,776.013 (meters) COMP
DH8213 Y - -4,857,591.959 (meters) COMP
DH8213 Z - 3,937,795.090 (meters) COMP
DH8213 LAPLACE CORR- -2.35 (seconds) DEFLEC99
DH8213 ELLIP HEIGHT- -34.87 (meters) (02/28/06) GPS OBS
DH8213 GEOID HEIGHT- -35.42 (meters) GEOID03
DH8213
DH8213 HORZ ORDER - B
DH8213 ELLP ORDER - FIFTH CLASS I
DH8213
DH8213.The horizontal coordinates were established by GPS observations
DH8213.and adjusted by the National Geodetic Survey in February 2006..
DH8213
DH8213.The orthometric height was determined by GPS observations and a
DH8213.high-resolution geoid model using precise GPS observation and
DH8213.processing techniques.
DH8213
DH8213.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8213
DH8213.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8213
DH8213.The ellipsoidal height was determined by GPS observations
DH8213.and is referenced to NAD 83.
DH8213
DH8213.The geoid height was determined by GEOID03.
DH8213
DH8213; North East Units Scale Factor Converg.
DH8213;SPC MD - 78,696.247 489,948.960 MT 0.99998840 +0 38 45.8
DH8213;SPC MD - 258,189.27 1,607,440.88 sFT 0.99998840 +0 38 45.8
DH8213;UTM 18 - 4,247,430.527 415,208.755 MT 0.99968854 -0 36 09.3
DH8213
DH8213! - Elev Factor x Scale Factor = Combined Factor
DH8213!SPC MD - 1.00000547 x 0.99998840 = 0.99999387
DH8213!UTM 18 - 1.00000547 x 0.99968854 = 0.99969401
DH8213
DH8213 SUPERSEDED SURVEY CONTROL
DH8213
DH8213.No superseded survey control is available for this station.
DH8213
DH8213_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH1520947431(NAD 83)
DH8213_MARKER: Z = SEE DESCRIPTION
DH8213_SETTING: 0 = UNSPECIFIED SETTING
DH8213_SP_SET: USGS MEASURING DEVICE
DH8213_MARK LOGO: NONE
DH8213_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
DH8213_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8213+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
DH8213
DH8213 HISTORY - Date Condition Report By
DH8213 HISTORY - 20050920 MONUMENTED USGS
DH8213
DH8213 STATION DESCRIPTION
DH8213
DH8213'DESCRIBED BY US GEOLOGICAL SURVEY 2005 (GS)
DH8213'NO DESCRIPTION PUBLISHED AS MARK IS UNAVAILABLE EXCEPT TO OFFICIAL
DH8213'RESEARCH PERSONNEL.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8214 ***********************************************************************
DH8214 HT_MOD - This is a Height Modernization Survey Station.
DH8214 DESIGNATION - FISHING BAY NO BURN SET 8D1
DH8214 PID - DH8214
DH8214 STATE/COUNTY- MD/DORCHESTER
DH8214 USGS QUAD - BLACKWATER RIVER (1982)
DH8214
DH8214 *CURRENT SURVEY CONTROL
DH8214 ___________________________________________________________________
DH8214* NAD 83(1991)- 38 22 40.88345(N) 076 00 30.91391(W) ADJUSTED
DH8214* NAVD 88 - 0.63 (meters) 2.1 (feet) GPS OBS
DH8214 ___________________________________________________________________
DH8214 X - 1,210,444.147 (meters) COMP
DH8214 Y - -4,857,927.895 (meters) COMP
DH8214 Z - 3,938,402.338 (meters) COMP
DH8214 LAPLACE CORR- -2.08 (seconds) DEFLEC99
DH8214 ELLIP HEIGHT- -34.74 (meters) (02/28/06) GPS OBS
DH8214 GEOID HEIGHT- -35.37 (meters) GEOID03
DH8214
DH8214 HORZ ORDER - B
DH8214 ELLP ORDER - FIFTH CLASS I
DH8214
DH8214.The horizontal coordinates were established by GPS observations
DH8214.and adjusted by the National Geodetic Survey in February 2006..
DH8214
DH8214.The orthometric height was determined by GPS observations and a
DH8214.high-resolution geoid model using precise GPS observation and
DH8214.processing techniques.
DH8214
DH8214.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8214
DH8214.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8214
DH8214.The ellipsoidal height was determined by GPS observations
DH8214.and is referenced to NAD 83.
DH8214
DH8214.The geoid height was determined by GEOID03.
DH8214
DH8214; North East Units Scale Factor Converg.
DH8214;SPC MD - 79,433.994 486,626.535 MT 0.99998734 +0 37 20.1
DH8214;SPC MD - 260,609.70 1,596,540.56 sFT 0.99998734 +0 37 20.1
DH8214;UTM 18 - 4,248,240.252 411,904.171 MT 0.99969558 -0 37 34.4
DH8214
DH8214! - Elev Factor x Scale Factor = Combined Factor
DH8214!SPC MD - 1.00000545 x 0.99998734 = 0.99999279
DH8214!UTM 18 - 1.00000545 x 0.99969558 = 0.99970103
DH8214
DH8214 SUPERSEDED SURVEY CONTROL
DH8214
DH8214.No superseded survey control is available for this station.
DH8214
DH8214_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH1190448240(NAD 83)
DH8214_MARKER: Z = SEE DESCRIPTION
DH8214_SETTING: 0 = UNSPECIFIED SETTING
DH8214_SP_SET: USGS MEASURING DEVICE
DH8214_MARK LOGO: NONE
DH8214_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
DH8214_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8214+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
DH8214
DH8214 HISTORY - Date Condition Report By
DH8214 HISTORY - 20050920 MONUMENTED USGS
DH8214
DH8214 STATION DESCRIPTION
DH8214
DH8214'DESCRIBED BY US GEOLOGICAL SURVEY 2005 (GS)
DH8214'NO DESCRIPTION PUBLISHED AS MARK IS UNAVAILABLE EXCEPT TO OFFICIAL
DH8214'RESEARCH PERSONNEL.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8206 ***********************************************************************
DH8206 HT_MOD - This is a Height Modernization Survey Station.
DH8206 DESIGNATION - FOOTBRIDGE
DH8206 PID - DH8206
DH8206 STATE/COUNTY- MD/DORCHESTER
DH8206 USGS QUAD - GOLDEN HILL (1981)
DH8206
DH8206 *CURRENT SURVEY CONTROL
DH8206 ___________________________________________________________________
DH8206* NAD 83(1991)- 38 26 48.18206(N) 076 12 17.90083(W) ADJUSTED
DH8206* NAVD 88 - 0.55 (meters) 1.8 (feet) GPS OBS
DH8206 ___________________________________________________________________
DH8206 X - 1,192,656.547 (meters) COMP
DH8206 Y - -4,857,447.449 (meters) COMP
DH8206 Z - 3,944,377.438 (meters) COMP
DH8206 LAPLACE CORR- -6.10 (seconds) DEFLEC99
DH8206 ELLIP HEIGHT- -34.37 (meters) (02/28/06) GPS OBS
DH8206 GEOID HEIGHT- -34.91 (meters) GEOID03
DH8206
DH8206 HORZ ORDER - B
DH8206 ELLP ORDER - FIFTH CLASS I
DH8206
DH8206.The horizontal coordinates were established by GPS observations
DH8206.and adjusted by the National Geodetic Survey in February 2006..
DH8206
DH8206.The orthometric height was determined by GPS observations and a
DH8206.high-resolution geoid model using precise GPS observation and
DH8206.processing techniques.
DH8206
DH8206.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8206
DH8206.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8206
DH8206.The ellipsoidal height was determined by GPS observations
DH8206.and is referenced to NAD 83.
DH8206
DH8206.The geoid height was determined by GEOID03.
DH8206
DH8206; North East Units Scale Factor Converg.
DH8206;SPC MD - 86,891.007 469,401.089 MT 0.99997772 +0 29 56.4
DH8206;SPC MD - 285,074.91 1,540,026.74 sFT 0.99997772 +0 29 56.4
DH8206;UTM 18 - 4,256,068.677 394,849.830 MT 0.99973616 -0 44 57.5
DH8206
DH8206! - Elev Factor x Scale Factor = Combined Factor
DH8206!SPC MD - 1.00000539 x 0.99997772 = 0.99998311
DH8206!UTM 18 - 1.00000539 x 0.99973616 = 0.99974155
DH8206
DH8206 SUPERSEDED SURVEY CONTROL
DH8206
DH8206.No superseded survey control is available for this station.
DH8206
DH8206_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH9485056069(NAD 83)
DH8206_MARKER: I = METAL ROD
DH8206_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+)
DH8206_STAMPING: NO STAMPING
DH8206_MARK LOGO: NONE
DH8206_PROJECTION: PROJECTING 1 CENTIMETERS
DH8206_MAGNETIC: I = MARKER IS A STEEL ROD
DH8206_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
DH8206_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8206+SATELLITE: SATELLITE OBSERVATIONS - September 08, 2005
DH8206_ROD/PIPE-DEPTH: 18.3 meters
DH8206
DH8206 HISTORY - Date Condition Report By
DH8206 HISTORY - 20050908 MONUMENTED NGS
DH8206
DH8206 STATION DESCRIPTION
DH8206
DH8206'DESCRIBED BY NATIONAL GEODETIC SURVEY 2005 (FCM)
DH8206'THIS MARK IS AT THE NORTHERLY SECTION OF A DIVIDED FOOT BRIDGE IN THE
DH8206'BLACKWATER RIVER. IT IS APPROXIMATELY A 20-MINUTE RIDE TO THE WEST BY
DH8206'JOHN BOAT FROM THE BOAT RAMP AT THE RT 335 BRIDGE. IT IS THE TOP
DH8206'CENTER OF A STAINLESS STEEL ROD DRIVEN 60 FT TO REFUSAL BETWEEN TWO
DH8206'BOARDS IN THE CENTERLINE OF THE BRIDGE. THERE IS A 1-INCH PVC PIPE
DH8206'AROUND THE ROD. THE BRIDGE IS ROUGHLY 30 INCHES WIDE.
DH8206'
DH8206'TO ARRANGE ACCESS, CONTACT BLACKWATER NATIONAL WILDLIFE REFUGE STAFF
DH8206'AT 410-228-2692 AS FAR IN ADVANCE AS POSSIBLE. A BOAT IS NEEDED TO
DH8206'REACH THE MARK.
DH8206'
DH8206'THE MARK IS 10.5 FT SOUTH (TOWARD MIDDLE OF RIVER) FROM THE GALVANIZED
DH8206'PIPE ON THE WEST SIDE OF THE BRIDGE THAT SUPPORTS THE USGS WATER
DH8206'LEVEL GAGE, AND 3.5 FT NORTH TOWARD THE SHORE FROM THE BOTTOM STEP OF
DH8206'SEVERAL STEPS LEADING UP TO AN OBSERVATION PLATFORM. IT PROJECTS
DH8206'ABOUT 1 CM ABOVE THE SURROUNDING BOARDS. THIS LOCATION IS ABOUT 190
DH8206'FT SOUTH OF THE SOUTHERLY LINE OF CATTAILS AT THE SHORE.
DH8206'
DH8206'NO PROVISION COULD BE MADE TO ANCHOR THE ROD TO PREVENT HORIZONTAL
DH8206'MOTION WITHOUT MODIFYING THE BRIDGE. CONSEQUENTLY, THE ROD CAN MOVE
DH8206'SLIGHTLY, MOSTLY TO THE SOUTH. TO THE N, W AND E IT IS PRETTY WELL
DH8206'CONSTRAINED BY THE BOARDS IN THE BRIDGE. A PIECE OF HIGH-DENSITY FOAM
DH8206'COULD BE INSERTED TO PREVENT SOUTHERLY MOTION.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8207 ***********************************************************************
DH8207 HT_MOD - This is a Height Modernization Survey Station.
DH8207 DESIGNATION - GOOSE DAM
DH8207 PID - DH8207
DH8207 STATE/COUNTY- MD/DORCHESTER
DH8207 USGS QUAD - TAYLORS ISLAND (1982)
DH8207
DH8207 *CURRENT SURVEY CONTROL
DH8207 ___________________________________________________________________
DH8207* NAD 83(1991)- 38 28 37.80242(N) 076 15 45.97209(W) ADJUSTED
DH8207* NAVD 88 - 0.14 (meters) 0.5 (feet) GPS OBS
DH8207 ___________________________________________________________________
DH8207 X - 1,187,256.664 (meters) COMP
DH8207 Y - -4,856,605.684 (meters) COMP
DH8207 Z - 3,947,024.025 (meters) COMP
DH8207 LAPLACE CORR- -5.97 (seconds) DEFLEC99
DH8207 ELLIP HEIGHT- -34.54 (meters) (02/28/06) GPS OBS
DH8207 GEOID HEIGHT- -34.68 (meters) GEOID03
DH8207
DH8207 HORZ ORDER - B
DH8207 ELLP ORDER - FIFTH CLASS I
DH8207
DH8207.The horizontal coordinates were established by GPS observations
DH8207.and adjusted by the National Geodetic Survey in February 2006..
DH8207
DH8207.The orthometric height was determined by GPS observations and a
DH8207.high-resolution geoid model using precise GPS observation and
DH8207.processing techniques.
DH8207
DH8207.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8207
DH8207.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8207
DH8207.The ellipsoidal height was determined by GPS observations
DH8207.and is referenced to NAD 83.
DH8207
DH8207.The geoid height was determined by GEOID03.
DH8207
DH8207; North East Units Scale Factor Converg.
DH8207;SPC MD - 90,228.593 464,328.529 MT 0.99997390 +0 27 45.8
DH8207;SPC MD - 296,024.98 1,523,384.52 sFT 0.99997390 +0 27 45.8
DH8207;UTM 18 - 4,259,515.182 389,852.353 MT 0.99974941 -0 47 08.8
DH8207
DH8207! - Elev Factor x Scale Factor = Combined Factor
DH8207!SPC MD - 1.00000542 x 0.99997390 = 0.99997932
DH8207!UTM 18 - 1.00000542 x 0.99974941 = 0.99975483
DH8207
DH8207 SUPERSEDED SURVEY CONTROL
DH8207
DH8207.No superseded survey control is available for this station.
DH8207
DH8207_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH8985259515(NAD 83)
DH8207_MARKER: I = METAL ROD
DH8207_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+)
DH8207_STAMPING: FOOTBRIDGE GOOSE DAM 2005
DH8207_MARK LOGO: NONE
DH8207_PROJECTION: RECESSED 10 CENTIMETERS
DH8207_MAGNETIC: I = MARKER IS A STEEL ROD
DH8207_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
DH8207_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8207+SATELLITE: SATELLITE OBSERVATIONS - September 08, 2005
DH8207_ROD/PIPE-DEPTH: 29.3 meters
DH8207
DH8207 HISTORY - Date Condition Report By
DH8207 HISTORY - 20050908 MONUMENTED NGS
DH8207
DH8207 STATION DESCRIPTION
DH8207
DH8207'DESCRIBED BY NATIONAL GEODETIC SURVEY 2005 (FCM)
DH8207'THIS MARK IS AT THE USGS WATER LEVEL GAGE AT THE NORTH END OF GOOSE
DH8207'DAM AREA OF BLACKWATER NATIONAL WILDLIFE REFUGE. TO ARRANGE ACCESS
DH8207'(AIR BOAT PROBABLY NEEDED, ABOUT A 25-MINUTE RIDE FROM RT 335 PUT-IN),
DH8207'CONTACT REFUGE HQ AS FAR IN ADVANCE AS POSSIBLE AT 410-228-2692.
DH8207'
DH8207'THE MARK IS THE TOP CENTER OF A STAINLESS STEEL ROD UNDER A LOGO CAP
DH8207'THAT HAS NO AGENCY ID, WITHIN A 6-INCH PVC PIPE THAT IS SURROUNDED BY
DH8207'CONCRETE COLLAR. THE ACCESS CAP IS HELD IN PLACE BY A SLOTTED-HEAD
DH8207'SCREW UNLESS THE SCREW GETS LOST.
DH8207'
DH8207'THE MARK IS 8 FT NORTHERLY FROM THE GALVANIZED PIPE SUPPORTING THE
DH8207'WATER LEVEL GAGE, ROUGHLY 6 FT NW OF STREAM BANK--NW EDGE OF
DH8207'WATER--AND 6 FT SOUTHERLY FROM 1-INCH PVC PIPE THAT WAS TAPED
DH8207'TOGETHER FROM SHORT PIECES TO BE ABOUT 5 FT HIGH.
DH8207'
DH8207'THE LOGO CAP WAS FIRST STAMPED FOR THE FOOTBRIDGE MARK WHICH IS
DH8207'SEVERAL MILES TO THE SOUTHEAST AND REACHABLE BY JOHN BOAT, BUT IT
DH8207'COULD NOT BE USED THERE. THEN THE STAMPING FOR GOOSE DAM WAS ADDED.
DH8207'THE PVC PIPE PROJECTS ROUGHLY 6 INCHES ABOVE SURROUNDING GRASS.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
AJ7984 ***********************************************************************
AJ7984 HT_MOD - This is a Height Modernization Survey Station.
AJ7984 CBN - This is a Cooperative Base Network Control Station.
AJ7984 DESIGNATION - H 124 RESET 1998
AJ7984 PID - AJ7984
AJ7984 STATE/COUNTY- MD/DORCHESTER
AJ7984 USGS QUAD - TAYLORS ISLAND (1982)
AJ7984
AJ7984 *CURRENT SURVEY CONTROL
AJ7984 ___________________________________________________________________
AJ7984* NAD 83(1991)- 38 28 11.25406(N) 076 17 21.36808(W) ADJUSTED
AJ7984* NAVD 88 - 2.57 (meters) 8.4 (feet) GPS OBS
AJ7984 ___________________________________________________________________
AJ7984 X - 1,185,131.570 (meters) COMP
AJ7984 Y - -4,857,650.951 (meters) COMP
AJ7984 Z - 3,946,384.693 (meters) COMP
AJ7984 LAPLACE CORR- -5.29 (seconds) DEFLEC99
AJ7984 ELLIP HEIGHT- -32.04 (meters) (02/12/02) GPS OBS
AJ7984 GEOID HEIGHT- -34.61 (meters) GEOID03
AJ7984
AJ7984 HORZ ORDER - A
AJ7984 ELLP ORDER - FOURTH CLASS I
AJ7984
AJ7984.The horizontal coordinates were established by GPS observations
AJ7984.and adjusted by the National Geodetic Survey in February 2002..
AJ7984
AJ7984.The orthometric height was determined by GPS observations and a
AJ7984.high-resolution geoid model using precise GPS observation and
AJ7984.processing techniques.
AJ7984
AJ7984.The X, Y, and Z were computed from the position and the ellipsoidal ht.
AJ7984
AJ7984.The Laplace correction was computed from DEFLEC99 derived deflections.
AJ7984
AJ7984.The ellipsoidal height was determined by GPS observations
AJ7984.and is referenced to NAD 83.
AJ7984
AJ7984.The geoid height was determined by GEOID03.
AJ7984
AJ7984; North East Units Scale Factor Converg.
AJ7984;SPC MD - 89,391.686 462,022.734 MT 0.99997480 +0 26 45.9
AJ7984;SPC MD - 293,279.22 1,515,819.59 sFT 0.99997480 +0 26 45.9
AJ7984;UTM 18 - 4,258,728.883 387,529.389 MT 0.99975578 -0 48 07.7
AJ7984
AJ7984! - Elev Factor x Scale Factor = Combined Factor
AJ7984!SPC MD - 1.00000503 x 0.99997480 = 0.99997983
AJ7984!UTM 18 - 1.00000503 x 0.99975578 = 0.99976081
AJ7984
AJ7984 SUPERSEDED SURVEY CONTROL
AJ7984
AJ7984.No superseded survey control is available for this station.
AJ7984
AJ7984_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH8752958729(NAD 83)
AJ7984_MARKER: DD = SURVEY DISK
AJ7984_SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE
AJ7984_SP_SET: BRIDGE ABUTMENT
AJ7984_STAMPING: H 124 RESET 1998
AJ7984_MARK LOGO: MDSHA
AJ7984_MAGNETIC: O = OTHER; SEE DESCRIPTION
AJ7984_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
AJ7984_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AJ7984+SATELLITE: SATELLITE OBSERVATIONS - February 09, 2006
AJ7984
AJ7984 HISTORY - Date Condition Report By
AJ7984 HISTORY - 1998 MONUMENTED MDSHA
AJ7984 HISTORY - 20000405 GOOD MDSHA
AJ7984 HISTORY - 20050920 GOOD NGS
AJ7984 HISTORY - 20060209 GOOD USPSQD
AJ7984
AJ7984 STATION DESCRIPTION
AJ7984
AJ7984'DESCRIBED BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (SFK)
AJ7984'THE STATION IS LOCATED AT TAYLORS ISLAND, DORCHESTER COUNTY, MARYLAND.
AJ7984'TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAY 16 AND STATE
AJ7984'HIGHWAY 335 IN CHURCH CREEK, PROCEED SOUTHWEST ALONG STATE HIGHWAY 16
AJ7984'FOR 9.35 MILES (15.05 KM) TO THE HIGHWAY BRIDGE OVER SLAUGHTER CREEK
AJ7984'AND THE STATION ON THE RIGHT. THE STATION IS A MARYLAND STATE HIGHWAY
AJ7984'SURVEY DISK SET IN A DRILL HOLE IN THE EAST BRIDGE ABUTMENT, 3.0 FEET
AJ7984'(0.9 M) SOUTHEAST OF THE NORTHWEST WHEEL GUARD, 27.4 FEET (8.4 M)
AJ7984'NORTHWEST OF THE SOUTHEAST WHEEL GUARD, 58.6 FEET (17.9 M) SOUTHWEST
AJ7984'OF A DRAINAGE INLET, 177.2 FEET (54.0 M) SOUTHWEST OF THE NORTHEAST
AJ7984'END OF A GUARD RAIL, 71.1 FEET (21.7 M) NORTH OF THE SOUTH END OF A
AJ7984'WOODEN BULKHEAD AND ABOUT 0.5 FEET (15.2 CM) HIGHER THAN THE ROAD
AJ7984'SURFACE.
AJ7984
AJ7984 STATION RECOVERY (2005)
AJ7984
AJ7984'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2005 (GS)
AJ7984'RECOVERED 2.5 FT SOUTH FROM GUARDRAIL AND 1 FT NORTH FROM WHITE
AJ7984'STRIPE.
AJ7984
AJ7984 STATION RECOVERY (2006)
AJ7984
AJ7984'RECOVERY NOTE BY US POWER SQUADRON 2006
AJ7984'THERE IS A NEW BRIDGE AT THIS LOCATION. THE STATION IS IN THE ROADBED
AJ7984'OF THE WEST BOUND LANE JUST PAST THE EXPANSION JOINT.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
HV0471 ***********************************************************************
HV0471 DESIGNATION - H 52
HV0471 PID - HV0471
HV0471 STATE/COUNTY- MD/DORCHESTER
HV0471 USGS QUAD - HONGA (1984)
HV0471
HV0471 *CURRENT SURVEY CONTROL
HV0471 ___________________________________________________________________
HV0471* NAD 83(1991)- 38 21 00.81814(N) 076 08 25.44872(W) ADJUSTED
HV0471* NAVD 88 - 0.346 (meters) 1.14 (feet) ADJUSTED
HV0471 ___________________________________________________________________
HV0471 X - 1,199,723.443 (meters) COMP
HV0471 Y - -4,862,558.880 (meters) COMP
HV0471 Z - 3,935,982.988 (meters) COMP
HV0471 LAPLACE CORR- -3.56 (seconds) DEFLEC99
HV0471 ELLIP HEIGHT- -34.94 (meters) (02/28/06) GPS OBS
HV0471 GEOID HEIGHT- -35.24 (meters) GEOID03
HV0471 DYNAMIC HT - 0.345 (meters) 1.13 (feet) COMP
HV0471 MODELED GRAV- 979,996.6 (mgal) NAVD 88
HV0471
HV0471 HORZ ORDER - B
HV0471 VERT ORDER - SECOND CLASS 0
HV0471 ELLP ORDER - FIFTH CLASS I
HV0471
HV0471.The horizontal coordinates were established by GPS observations
HV0471.and adjusted by the National Geodetic Survey in February 2006..
HV0471
HV0471.The orthometric height was determined by differential leveling
HV0471.and adjusted by the National Geodetic Survey in June 1991..
HV0471
HV0471.The X, Y, and Z were computed from the position and the ellipsoidal ht.
HV0471
HV0471.The Laplace correction was computed from DEFLEC99 derived deflections.
HV0471
HV0471.The ellipsoidal height was determined by GPS observations
HV0471.and is referenced to NAD 83.
HV0471
HV0471.The geoid height was determined by GEOID03.
HV0471
HV0471.The dynamic height is computed by dividing the NAVD 88
HV0471.geopotential number by the normal gravity value computed on the
HV0471.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
HV0471.degrees latitude (g = 980.6199 gals.).
HV0471
HV0471.The modeled gravity was interpolated from observed gravity values.
HV0471
HV0471; North East Units Scale Factor Converg.
HV0471;SPC MD - 76,231.954 475,138.354 MT 0.99999164 +0 32 22.2
HV0471;SPC MD - 250,104.34 1,558,849.75 sFT 0.99999164 +0 32 22.2
HV0471;UTM 18 - 4,245,289.976 400,352.229 MT 0.99972229 -0 42 27.5
HV0471
HV0471! - Elev Factor x Scale Factor = Combined Factor
HV0471!SPC MD - 1.00000548 x 0.99999164 = 0.99999712
HV0471!UTM 18 - 1.00000548 x 0.99972229 = 0.99972777
HV0471
HV0471 SUPERSEDED SURVEY CONTROL
HV0471
HV0471 NAVD 88 (02/28/06) 0.35 (m) 1.1 (f) LEVELING 3
HV0471 NGVD 29 (??/??/??) 0.570 (m) 1.87 (f) ADJUSTED 2 0
HV0471
HV0471.Superseded values are not recommended for survey control.
HV0471.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV0471.See file dsdata.txt to determine how the superseded data were derived.
HV0471
HV0471_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0035245290(NAD 83)
HV0471_MARKER: DB = BENCH MARK DISK
HV0471_SETTING: 30 = SET IN A LIGHT STRUCTURE
HV0471_SP_SET: HEADWALL
HV0471_STAMPING: H 52 1942
HV0471_MARK LOGO: CGS
HV0471_MAGNETIC: N = NO MAGNETIC MATERIAL
HV0471_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
HV0471_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
HV0471+SATELLITE: SATELLITE OBSERVATIONS - September 09, 2005
HV0471
HV0471 HISTORY - Date Condition Report By
HV0471 HISTORY - 1942 MONUMENTED CGS
HV0471 HISTORY - 20050909 GOOD NGS
HV0471
HV0471 STATION DESCRIPTION
HV0471
HV0471'DESCRIBED BY COAST AND GEODETIC SURVEY 1942
HV0471'7.3 MI SE FROM GOLDEN HILL.
HV0471'THIS MARK IS ALONG HIGHWAY 336, ABOUT 7.3 MILES SOUTHEAST OF THE
HV0471'POST OFFICE AT GOLDEN HILL, DORCHESTER COUNTY, 0.1 MILE SOUTHEAST
HV0471'OF THE LAKESVILLE JUNCTION, SET IN THE HEADWALL OF A CONCRETE
HV0471'CULVERT, 250 FEET NORTHWEST OF A SCHOOL HOUSE, 20.6 FEET SOUTHWEST
HV0471'OF THE CENTER LINE OF THE HIGHWAY, AND IS A STANDARD DISK ABOUT
HV0471'LEVEL WITH THE PAVEMENT.
HV0471
HV0471 STATION RECOVERY (2005)
HV0471
HV0471'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2005 (JRO)
HV0471'RECOVERED IN USABLE CONDITION. MARK IS IN AN L-SHAPED HEADWALL, TWO
HV0471'SECTIONS ABOUT 3 FT LONG, AT THE CORNER OF HEADWALL, ABOUT 4 FT
HV0471'TOWARD ROAD (EAST) FROM ORANGE WP. OK FOR GEODETIC GPS--TREES TO EAST
HV0471'ALONG ROAD ARE UP ABOUT 30 DEGREES AND TO SOUTH ABOUT 20 DEGREES.
HV0471'HEADWALL IS CRUMBLING SOMEWHAT.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
AI3494 ***********************************************************************
AI3494 CORS - This is a GPS Continuously Operating Reference Station.
AI3494 DESIGNATION - HORN POINT ENVIRO CORS ARP
AI3494 CORS_ID - HNPT
AI3494 PID - AI3494
AI3494 STATE/COUNTY- MD/DORCHESTER
AI3494 USGS QUAD - CHURCH CREEK (1982)
AI3494
AI3494 *CURRENT SURVEY CONTROL
AI3494 ___________________________________________________________________
AI3494* NAD 83(CORS)- 38 35 19.71067(N) 076 07 49.33296(W) ADJUSTED
AI3494* NAVD 88 -
AI3494 ___________________________________________________________________
AI3494 EPOCH DATE - 2002.00
AI3494 X - 1,196,627.003 (meters) COMP
AI3494 Y - -4,846,359.971 (meters) COMP
AI3494 Z - 3,956,723.238 (meters) COMP
AI3494 ELLIP HEIGHT- -26.65 (meters) (03/??/02) GPS OBS
AI3494 GEOID HEIGHT- -34.87 (meters) GEOID03
AI3494
AI3494 HORZ ORDER - SPECIAL (CORS)
AI3494 ELLP ORDER - SPECIAL (CORS)
AI3494
AI3494.ITRF positions are available for this station.
AI3494.The coordinates were established by GPS observations
AI3494.and adjusted by the National Geodetic Survey in March 2002..
AI3494.The coordinates are valid at the epoch date displayed above.
AI3494.The epoch date for horizontal control is a decimal equivalence
AI3494.of Year/Month/Day.
AI3494
AI3494
AI3494.The PID for the CORS L1 Phase Center is AI5434.
AI3494
AI3494.The XYZ, and position/ellipsoidal ht. are equivalent.
AI3494
AI3494.The ellipsoidal height was determined by GPS observations
AI3494.and is referenced to NAD 83.
AI3494
AI3494.The geoid height was determined by GEOID03.
AI3494
AI3494; North East Units Scale Factor Converg.
AI3494;SPC MD - 102,722.214 475,762.970 MT 0.99996232 +0 32 44.9
AI3494;SPC MD - 337,014.46 1,560,899.01 sFT 0.99996232 +0 32 44.9
AI3494
AI3494! - Elev Factor x Scale Factor = Combined Factor
AI3494!SPC MD - 1.00000418 x 0.99996232 = 0.99996650
AI3494
AI3494 SUPERSEDED SURVEY CONTROL
AI3494
AI3494 NAD 83(CORS)- 38 35 19.71008(N) 076 07 49.33310(W) AD(1997.00) c
AI3494 ELLIP H (01/??/00) -26.64 (m) GP(1997.00) c c
AI3494
AI3494.Superseded values are not recommended for survey control.
AI3494.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AI3494.See file dsdata.txt to determine how the superseded data were derived.
AI3494
AI3494_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0155471754(NAD 83)
AI3494_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AI3494
AI3494 STATION DESCRIPTION
AI3494
AI3494'DESCRIBED BY NATIONAL GEODETIC SURVEY 2002
AI3494'STATION IS A GPS CORS. LATEST INFORMATION INCLUDING POSITIONS AND
AI3494'VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES ACCESSIBLE
AI3494'BY ANONYMOUS FTP OR THE WORLDWIDE WEB.
AI3494' FTP CORS.NGS.NOAA.GOV: CORS/COORD AND CORS/STATION_LOG
AI3494' HTTP://WWW.NGS.NOAA.GOV UNDER PRODUCTS AND SERVICES.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8208 ***********************************************************************
DH8208 HT_MOD - This is a Height Modernization Survey Station.
DH8208 DESIGNATION - MCCREADYS CREEK NAIL
DH8208 PID - DH8208
DH8208 STATE/COUNTY- MD/DORCHESTER
DH8208 USGS QUAD - WINGATE (1982)
DH8208
DH8208 *CURRENT SURVEY CONTROL
DH8208 ___________________________________________________________________
DH8208* NAD 83(1991)- 38 18 02.85314(N) 076 00 20.95154(W) ADJUSTED
DH8208* NAVD 88 - 0.75 (meters) 2.5 (feet) GPS OBS
DH8208 ___________________________________________________________________
DH8208 X - 1,211,964.761 (meters) COMP
DH8208 Y - -4,863,029.456 (meters) COMP
DH8208 Z - 3,931,678.286 (meters) COMP
DH8208 LAPLACE CORR- -2.42 (seconds) DEFLEC99
DH8208 ELLIP HEIGHT- -34.73 (meters) (02/28/06) GPS OBS
DH8208 GEOID HEIGHT- -35.48 (meters) GEOID03
DH8208
DH8208 HORZ ORDER - B
DH8208 ELLP ORDER - FIFTH CLASS I
DH8208
DH8208.The horizontal coordinates were established by GPS observations
DH8208.and adjusted by the National Geodetic Survey in February 2006..
DH8208
DH8208.The orthometric height was determined by GPS observations and a
DH8208.high-resolution geoid model using precise GPS observation and
DH8208.processing techniques.
DH8208
DH8208.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8208
DH8208.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8208
DH8208.The ellipsoidal height was determined by GPS observations
DH8208.and is referenced to NAD 83.
DH8208
DH8208.The geoid height was determined by GEOID03.
DH8208
DH8208; North East Units Scale Factor Converg.
DH8208;SPC MD - 70,864.362 486,961.685 MT 0.99999986 +0 37 26.3
DH8208;SPC MD - 232,494.16 1,597,640.13 sFT 0.99999986 +0 37 26.3
DH8208;UTM 18 - 4,239,667.910 412,052.561 MT 0.99969526 -0 37 24.4
DH8208
DH8208! - Elev Factor x Scale Factor = Combined Factor
DH8208!SPC MD - 1.00000545 x 0.99999986 = 1.00000531
DH8208!UTM 18 - 1.00000545 x 0.99969526 = 0.99970071
DH8208
DH8208 SUPERSEDED SURVEY CONTROL
DH8208
DH8208.No superseded survey control is available for this station.
DH8208
DH8208_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH1205339668(NAD 83)
DH8208_MARKER: N = NAIL
DH8208_SETTING: 31 = SET IN A PAVEMENT SUCH AS STREET, SIDEWALK, CURB, ETC.
DH8208_SP_SET: PARKING LOT
DH8208_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
DH8208_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8208+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
DH8208
DH8208 HISTORY - Date Condition Report By
DH8208 HISTORY - 20050920 MONUMENTED NGS
DH8208
DH8208 STATION DESCRIPTION
DH8208
DH8208'DESCRIBED BY NATIONAL GEODETIC SURVEY 2005 (GS)
DH8208'THIS IS A TEMPORARY POINT, NAIL DRIVEN IN ASPHALT PATCH ON TOP OF SPOT
DH8208'WHERE PRIMARY TIDAL BENCH MARK 1559 A IS OR WAS. HANDHELD GPS
DH8208'COORDINATES N381802.901 W0760020.998. LOCAL TIES ARE 10 FEET FROM
DH8208'EDGE OF PARKING LOT ASPHALT, 35 FEET SE OF LIGHT POLE, 36 FEET WEST
DH8208'OF FIFTH PYLON FROM ENTRANCE TO BOAT RAMP. ARROW PAINTED TO IT WITH
DH8208'FLUORESCENT PAINT.
DH8208'
DH8208'INFO ON THE TIDAL BM THAT WAS NOT USABLE BECAUSE COVERED OVER FOLLOWS.
DH8208'STAMPING IS 1559 A 1981. MONUMENTATION IS TIDAL STATION DISK. AGENCY
DH8208'IS NATIONAL OCEAN SURVEY (NOS). SETTING IS STAINLESS STEEL ROD.
DH8208'
DH8208'THE PRIMARY BENCH MARK IS A DISK LOCATED AT THE MCCREADYS POINT
DH8208'CHANNEL ENTRANCE, 57 M (186 FT) SOUTH OF THE SOUTH EDGE OF A CINDER
DH8208'BLOCK LATRINE, 56 M (184 FT) SSW OF THE NORTH END OF THE WEST BULKHEAD
DH8208'FOR THE BOAT RAMP, 18.11 M (59.4 FT) WEST OF THE INTERSECTION OF THE
DH8208'NORTH WOOD BULKHEAD FOR THE CHANNEL ENTRANCE AND THE ASPHALT PARKING
DH8208'LOT, AND 7.28 M (23.9 FT) NE OF THE WATERS EDGE AT THE SW POINT NEAR
DH8208'THE NORTH CHANNEL ENTRANCE BULKHEAD. THE BENCH MARK IS CRIMPED TO THE
DH8208'TOP OF A STAINLESS STEEL ROD DRIVEN 20.1 M (66 FT) TO REFUSAL.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
HU2651 ***********************************************************************
HU2651 DESIGNATION - NORTH AZ MK RESET
HU2651 PID - HU2651
HU2651 STATE/COUNTY- MD/DORCHESTER
HU2651 USGS QUAD - CHICAMACOMICO RIVER (1982)
HU2651
HU2651 *CURRENT SURVEY CONTROL
HU2651 ___________________________________________________________________
HU2651* NAD 83(1991)- 38 25 10.15427(N) 075 57 53.24495(W) ADJUSTED
HU2651* NAVD 88 - 0.51 (meters) 1.7 (feet) RESET
HU2651 ___________________________________________________________________
HU2651 X - 1,213,463.854 (meters) COMP
HU2651 Y - -4,854,227.628 (meters) COMP
HU2651 Z - 3,942,009.412 (meters) COMP
HU2651 LAPLACE CORR- -2.37 (seconds) DEFLEC99
HU2651 ELLIP HEIGHT- -34.84 (meters) (02/28/06) GPS OBS
HU2651 GEOID HEIGHT- -35.35 (meters) GEOID03
HU2651
HU2651 HORZ ORDER - B
HU2651 VERT ORDER - THIRD
HU2651 ELLP ORDER - FIFTH CLASS I
HU2651
HU2651.The horizontal coordinates were established by GPS observations
HU2651.and adjusted by the National Geodetic Survey in February 2006..
HU2651
HU2651.The orthometric height was computed from unverified reset data.
HU2651.No vertical observational check was made to the station.
HU2651
HU2651.The X, Y, and Z were computed from the position and the ellipsoidal ht.
HU2651
HU2651.The Laplace correction was computed from DEFLEC99 derived deflections.
HU2651
HU2651.The ellipsoidal height was determined by GPS observations
HU2651.and is referenced to NAD 83.
HU2651
HU2651.The geoid height was determined by GEOID03.
HU2651
HU2651; North East Units Scale Factor Converg.
HU2651;SPC MD - 84,078.789 490,401.020 MT 0.99998136 +0 38 59.0
HU2651;SPC MD - 275,848.49 1,608,924.01 sFT 0.99998136 +0 38 59.0
HU2651;UTM 18 - 4,252,800.341 415,777.861 MT 0.99968735 -0 35 58.5
HU2651
HU2651! - Elev Factor x Scale Factor = Combined Factor
HU2651!SPC MD - 1.00000547 x 0.99998136 = 0.99998683
HU2651!UTM 18 - 1.00000547 x 0.99968735 = 0.99969281
HU2651
HU2651 SUPERSEDED SURVEY CONTROL
HU2651
HU2651 NAVD 88 (02/28/06) 0.51 (m) 1.7 (f) LEVELING 3
HU2651 NGVD 29 (11/18/05) 0.75 (m) 2.5 (f) RESET 3
HU2651
HU2651.Superseded values are not recommended for survey control.
HU2651.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HU2651.See file dsdata.txt to determine how the superseded data were derived.
HU2651
HU2651_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH1577852800(NAD 83)
HU2651_MARKER: DB = BENCH MARK DISK
HU2651_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
HU2651_SP_SET: CONCRETE POST
HU2651_STAMPING: NORTH AZ MK RESET 1985
HU2651_MARK LOGO: NGS
HU2651_PROJECTION: FLUSH
HU2651_MAGNETIC: O = OTHER; SEE DESCRIPTION
HU2651_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
HU2651+STABILITY: SURFACE MOTION
HU2651_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
HU2651+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
HU2651
HU2651 HISTORY - Date Condition Report By
HU2651 HISTORY - 1985 MONUMENTED NGS
HU2651 HISTORY - 20050920 GOOD NGS
HU2651
HU2651 STATION DESCRIPTION
HU2651
HU2651'DESCRIBED BY NATIONAL GEODETIC SURVEY 1985
HU2651'10.5 KM (6.50 MI) WEST FROM COKELAND.
HU2651'FROM THE POST OFFICE IN CAMBRIDGE, GO SOUTHWEST ON HIGH STREET FOR 0.1
HU2651'KM (0.05 MI) TO A CROSSROADS. TURN LEFT AND GO SOUTH ON RACE STREET
HU2651'FOR 0.9 KM (0.55 MI) TO A CROSSROADS. TURN LEFT AND GO EAST ON
HU2651'WASHINGTON STREET FOR 1.5 KM (0.95 MI) A REVERSE FORK. KEEP STRAIGHT
HU2651'AHEAD AND GO EAST ON U.S. HIGHWAY 50 FOR 1.8 KM (1.10 MI) TO
HU2651'CROSSROADS. TURN RIGHT AND GO SOUTH ON BUCKTOWN ROAD FOR 11.6 KM
HU2651'(7.20 MI) TO A FORK IN THE ROAD. KEEP LEFT AND SOUTHWEST ON BESIPITCH
HU2651'FERRY ROAD FOR 9.5 KM (5.90 MI) TO THE MARK ON THE LEFT. 16.7 M
HU2651'(54.8 FT) SOUTHWEST FROM THE SOUTHWEST CORNER OF A ONE STORY BRICK
HU2651'HOUSE, 17.2 M (56.4 FT) NORTHEAST FROM A POWERLINE POLE NUMBERED
HU2651'32A/120, 7.6 M (24.9 FT) SOUTHEAST FROM THE CENTER OF A DIRT ROAD,
HU2651'8.8 M (28.9 FT) NORTH FROM THE CENTER OF BESIPITCH FERRY ROAD AND
HU2651'35.5 M (116.5 FT) SOUTH-SOUTHWEST FROM A POWERLINE POLE NUMBERED 502
HU2651'161 60 2.
HU2651
HU2651 STATION RECOVERY (2005)
HU2651
HU2651'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2005 (GS)
HU2651'RECOVERED 8.4 M SE FROM CENTERLINE OF GRAVEL DRIVE, 1 FT SE FROM
HU2651'ADDRESS POST MARKED 3702.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
HU0667 ***********************************************************************
HU0667 DESIGNATION - P 59
HU0667 PID - HU0667
HU0667 STATE/COUNTY- MD/DORCHESTER
HU0667 USGS QUAD - CHICAMACOMICO RIVER (1982)
HU0667
HU0667 *CURRENT SURVEY CONTROL
HU0667 ___________________________________________________________________
HU0667* NAD 83(1991)- 38 25 11.98219(N) 075 55 39.88084(W) ADJUSTED
HU0667* NAVD 88 - 3.049 (meters) 10.00 (feet) ADJUSTED
HU0667 ___________________________________________________________________
HU0667 X - 1,216,594.146 (meters) COMP
HU0667 Y - -4,853,409.954 (meters) COMP
HU0667 Z - 3,942,055.124 (meters) COMP
HU0667 LAPLACE CORR- -2.65 (seconds) DEFLEC99
HU0667 ELLIP HEIGHT- -32.34 (meters) (02/28/06) GPS OBS
HU0667 GEOID HEIGHT- -35.40 (meters) GEOID03
HU0667 DYNAMIC HT - 3.047 (meters) 10.00 (feet) COMP
HU0667 MODELED GRAV- 980,010.8 (mgal) NAVD 88
HU0667
HU0667 HORZ ORDER - B
HU0667 VERT ORDER - SECOND CLASS 0
HU0667 ELLP ORDER - FIFTH CLASS I
HU0667
HU0667.The horizontal coordinates were established by GPS observations
HU0667.and adjusted by the National Geodetic Survey in February 2006..
HU0667
HU0667.The orthometric height was determined by differential leveling
HU0667.and adjusted by the National Geodetic Survey in June 1991..
HU0667
HU0667.The X, Y, and Z were computed from the position and the ellipsoidal ht.
HU0667
HU0667.The Laplace correction was computed from DEFLEC99 derived deflections.
HU0667
HU0667.The ellipsoidal height was determined by GPS observations
HU0667.and is referenced to NAD 83.
HU0667
HU0667.The geoid height was determined by GEOID03.
HU0667
HU0667.The dynamic height is computed by dividing the NAVD 88
HU0667.geopotential number by the normal gravity value computed on the
HU0667.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
HU0667.degrees latitude (g = 980.6199 gals.).
HU0667
HU0667.The modeled gravity was interpolated from observed gravity values.
HU0667
HU0667; North East Units Scale Factor Converg.
HU0667;SPC MD - 84,172.489 493,635.265 MT 0.99998129 +0 40 22.7
HU0667;SPC MD - 276,155.91 1,619,535.03 sFT 0.99998129 +0 40 22.7
HU0667;UTM 18 - 4,252,823.490 419,012.418 MT 0.99968077 -0 34 35.6
HU0667
HU0667! - Elev Factor x Scale Factor = Combined Factor
HU0667!SPC MD - 1.00000507 x 0.99998129 = 0.99998636
HU0667!UTM 18 - 1.00000507 x 0.99968077 = 0.99968584
HU0667
HU0667 SUPERSEDED SURVEY CONTROL
HU0667
HU0667 NAVD 88 (02/28/06) 3.05 (m) 10.0 (f) LEVELING 3
HU0667 NGVD 29 (??/??/??) 3.285 (m) 10.78 (f) ADJUSTED 2 0
HU0667
HU0667.Superseded values are not recommended for survey control.
HU0667.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HU0667.See file dsdata.txt to determine how the superseded data were derived.
HU0667
HU0667_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH1901252823(NAD 83)
HU0667_MARKER: DB = BENCH MARK DISK
HU0667_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
HU0667_SP_SET: SET IN TOP OF CONCRETE MONUMENT
HU0667_STAMPING: P 59 1942
HU0667_MARK LOGO: CGS
HU0667_MAGNETIC: N = NO MAGNETIC MATERIAL
HU0667_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
HU0667+STABILITY: SURFACE MOTION
HU0667_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
HU0667+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
HU0667
HU0667 HISTORY - Date Condition Report By
HU0667 HISTORY - 1942 MONUMENTED CGS
HU0667 HISTORY - 20050920 GOOD CGS
HU0667
HU0667 STATION DESCRIPTION
HU0667
HU0667'DESCRIBED BY COAST AND GEODETIC SURVEY 1942
HU0667'4.2 MI W FROM COKELAND.
HU0667'THIS MARK IS ALONG THE BUCKTOWN ROAD ABOUT 4.2 MILES WEST OF THE
HU0667'INTERSECTION OF THE BUCKTOWN ROAD WITH THE ELLIOTT ISLAND ROAD AT
HU0667'COKELAND, DORCHESTER COUNTY, AT THE SOUTHEAST CORNER OF THE YARD
HU0667'AT A 2-STORY YELLOW FARM HOUSE, ACROSS THE ROAD FROM A GROUP OF
HU0667'BARNS, 26.5 FEET NORTHWEST OF THE CENTER LINE OF THE ROAD, 23 FEET
HU0667'NORTHWEST OF A BLACK WALNUT TREE, 16.5 FEET SOUTHEAST OF A PEAR
HU0667'TREE, ABOUT 2 FEET WEST OF A WIRE FENCE, AND IS A STANDARD DISK
HU0667'SET IN THE TOP OF A CONCRETE POST.
HU0667
HU0667 STATION RECOVERY (2005)
HU0667
HU0667'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 2005 (GS)
HU0667'RECOVERED 1 FT NORTH FROM METAL WP AND 1 FT WEST FROM PHONE BOX NUMBER
HU0667'101.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8209 ***********************************************************************
DH8209 HT_MOD - This is a Height Modernization Survey Station.
DH8209 DESIGNATION - PARSONS CREEK
DH8209 PID - DH8209
DH8209 STATE/COUNTY- MD/DORCHESTER
DH8209 USGS QUAD - TAYLORS ISLAND (1982)
DH8209
DH8209 *CURRENT SURVEY CONTROL
DH8209 ___________________________________________________________________
DH8209* NAD 83(1991)- 38 29 29.76569(N) 076 15 15.60913(W) ADJUSTED
DH8209* NAVD 88 - 1.06 (meters) 3.5 (feet) GPS OBS
DH8209 ___________________________________________________________________
DH8209 X - 1,187,734.809 (meters) COMP
DH8209 Y - -4,855,463.014 (meters) COMP
DH8209 Z - 3,948,278.815 (meters) COMP
DH8209 LAPLACE CORR- -6.03 (seconds) DEFLEC99
DH8209 ELLIP HEIGHT- -33.63 (meters) (02/28/06) GPS OBS
DH8209 GEOID HEIGHT- -34.69 (meters) GEOID03
DH8209
DH8209 HORZ ORDER - B
DH8209 ELLP ORDER - FIFTH CLASS I
DH8209
DH8209.The horizontal coordinates were established by GPS observations
DH8209.and adjusted by the National Geodetic Survey in February 2006..
DH8209
DH8209.The orthometric height was determined by GPS observations and a
DH8209.high-resolution geoid model using precise GPS observation and
DH8209.processing techniques.
DH8209
DH8209.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8209
DH8209.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8209
DH8209.The ellipsoidal height was determined by GPS observations
DH8209.and is referenced to NAD 83.
DH8209
DH8209.The geoid height was determined by GEOID03.
DH8209
DH8209; North East Units Scale Factor Converg.
DH8209;SPC MD - 91,836.756 465,051.365 MT 0.99997220 +0 28 04.8
DH8209;SPC MD - 301,301.09 1,525,756.02 sFT 0.99997220 +0 28 04.8
DH8209;UTM 18 - 4,261,106.854 390,609.891 MT 0.99974736 -0 46 50.8
DH8209
DH8209! - Elev Factor x Scale Factor = Combined Factor
DH8209!SPC MD - 1.00000528 x 0.99997220 = 0.99997748
DH8209!UTM 18 - 1.00000528 x 0.99974736 = 0.99975264
DH8209
DH8209 SUPERSEDED SURVEY CONTROL
DH8209
DH8209.No superseded survey control is available for this station.
DH8209
DH8209_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH9061061107(NAD 83)
DH8209_MARKER: I = METAL ROD
DH8209_SETTING: 49 = STAINLESS STEEL ROD W/O SLEEVE (10 FT.+)
DH8209_STAMPING: PARSONS CREEK 2005
DH8209_MARK LOGO: NONE
DH8209_PROJECTION: RECESSED 10 CENTIMETERS
DH8209_MAGNETIC: I = MARKER IS A STEEL ROD
DH8209_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
DH8209_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8209+SATELLITE: SATELLITE OBSERVATIONS - September 08, 2005
DH8209_ROD/PIPE-DEPTH: 15.8 meters
DH8209
DH8209 HISTORY - Date Condition Report By
DH8209 HISTORY - 20050908 MONUMENTED NGS
DH8209
DH8209 STATION DESCRIPTION
DH8209
DH8209'DESCRIBED BY NATIONAL GEODETIC SURVEY 2005 (FCM)
DH8209'THIS MARK APPEARS TO BE ON S.H.A. R.O.W. IT IS AT A TURNOUT, 0.55 MILE
DH8209'NE ALONG STATE ROUTE 16 FROM THE NE END OF SR 16 BRIDGE OVER PARSONS
DH8209'CREEK. THE HIGHWAY IS TWO LANES WITH PAVED SHOULDERS HERE. THIS
DH8209'TURNOUT IS DIAGONALLY TO ENE ACROSS HIGHWAY FROM A TURNOUT WITH
DH8209'LOCKED METAL GATE. THERE IS NO GATE, STRUCTURE OR SIGN AT THIS
DH8209'TURNOUT. THE GENERAL AREA ON BOTH SIDES OF HWY IS FRAGMITES.
DH8209'
DH8209'THE MARK IS TOP CENTER OF A STAINLESS STEEL ROD UNDER A LOGO CAP WITH
DH8209'NO AGENCY ID, WITHIN A 6-INCH PVC PIPE THAT IS SURROUNDED BY A
DH8209'CONCRETE COLLAR. THE ACCESS CAP IS HELD IN PLACE BY A SLOTTED-HEAD
DH8209'SCREW UNLESS THE SCREW GETS LOST.
DH8209'
DH8209'THE MARK IS 383 FT SW OF SW ONE OF TWO 36-INCH CORRUGATED METAL DRAIN
DH8209'PIPES CROSSING HWY (CULVERT NUMBER 090 19X0), 132 FT ENE AND ACROSS
DH8209'HWY FROM THE MIDDLE OF LOCKED METAL GATE REFERRED TO ABOVE, 46.5 FT
DH8209'SE OF CENTERLINE OF HWY, 24.0 FT SE FROM SE EDGE OF SHOULDER, 4.5 FT
DH8209'NW OF 1-INCH WHITE PVC PIPE TAPED ONTO 3-FT FENCEPOST.
DH8209'
DH8209'THE LOGO CAP IS ABOUT 2 FT BELOW HWY CENTERLINE.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
HV8917 ***********************************************************************
HV8917 CBN - This is a Cooperative Base Network Control Station.
HV8917 DESIGNATION - REFUGE 2
HV8917 PID - HV8917
HV8917 STATE/COUNTY- MD/DORCHESTER
HV8917 USGS QUAD - BLACKWATER RIVER (1982)
HV8917
HV8917 *CURRENT SURVEY CONTROL
HV8917 ___________________________________________________________________
HV8917* NAD 83(1991)- 38 26 45.17713(N) 076 07 09.84371(W) ADJUSTED
HV8917* NAVD 88 - 1.154 (meters) 3.79 (feet) ADJUSTED
HV8917 ___________________________________________________________________
HV8917 X - 1,199,923.720 (meters) COMP
HV8917 Y - -4,855,717.015 (meters) COMP
HV8917 Z - 3,944,305.107 (meters) COMP
HV8917 LAPLACE CORR- -3.48 (seconds) DEFLEC99
HV8917 ELLIP HEIGHT- -33.99 (meters) (02/12/02) GPS OBS
HV8917 GEOID HEIGHT- -35.13 (meters) GEOID03
HV8917 DYNAMIC HT - 1.153 (meters) 3.78 (feet) COMP
HV8917 MODELED GRAV- 980,005.9 (mgal) NAVD 88
HV8917
HV8917 HORZ ORDER - B
HV8917 VERT ORDER - SECOND CLASS I
HV8917 ELLP ORDER - FOURTH CLASS I
HV8917
HV8917.The horizontal coordinates were established by GPS observations
HV8917.and adjusted by the National Geodetic Survey in October 1991..
HV8917
HV8917.The orthometric height was determined by differential leveling
HV8917.and adjusted by the National Geodetic Survey in August 1994..
HV8917
HV8917.The X, Y, and Z were computed from the position and the ellipsoidal ht.
HV8917
HV8917.The Laplace correction was computed from DEFLEC99 derived deflections.
HV8917
HV8917.The ellipsoidal height was determined by GPS observations
HV8917.and is referenced to NAD 83.
HV8917
HV8917.The geoid height was determined by GEOID03.
HV8917
HV8917.The dynamic height is computed by dividing the NAVD 88
HV8917.geopotential number by the normal gravity value computed on the
HV8917.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
HV8917.degrees latitude (g = 980.6199 gals.).
HV8917
HV8917.The modeled gravity was interpolated from observed gravity values.
HV8917
HV8917; North East Units Scale Factor Converg.
HV8917;SPC MD - 86,866.913 476,871.629 MT 0.99997782 +0 33 09.7
HV8917;SPC MD - 284,995.86 1,564,536.34 sFT 0.99997782 +0 33 09.7
HV8917;UTM 18 - 4,255,881.859 402,316.196 MT 0.99971751 -0 41 45.9
HV8917
HV8917! - Elev Factor x Scale Factor = Combined Factor
HV8917!SPC MD - 1.00000533 x 0.99997782 = 0.99998315
HV8917!UTM 18 - 1.00000533 x 0.99971751 = 0.99972284
HV8917
HV8917 SUPERSEDED SURVEY CONTROL
HV8917
HV8917 NAD 83(1986)- 38 26 45.17388(N) 076 07 09.86135(W) AD( ) 2
HV8917 ELLIP H (10/23/91) -33.96 (m) GP( ) 4 1
HV8917 NAVD 88 (02/12/02) 1.15 (m) 3.8 (f) LEVELING 3
HV8917 NGVD 29 (10/23/91) 1.39 (m) 4.6 (f) LEVELING 3
HV8917
HV8917.Superseded values are not recommended for survey control.
HV8917.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV8917.See file dsdata.txt to determine how the superseded data were derived.
HV8917
HV8917_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0231655882(NAD 83)
HV8917_MARKER: I = METAL ROD
HV8917_SETTING: 59 = STAINLESS STEEL ROD IN SLEEVE (10 FT.+)
HV8917_SP_SET: STAINLESS STEEL ROD IN SLEEVE
HV8917_STAMPING: REFUGE 2 1990
HV8917_MARK LOGO: NGS
HV8917_PROJECTION: FLUSH
HV8917_MAGNETIC: N = NO MAGNETIC MATERIAL
HV8917_STABILITY: A = MOST RELIABLE AND EXPECTED TO HOLD
HV8917+STABILITY: POSITION/ELEVATION WELL
HV8917_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
HV8917+SATELLITE: SATELLITE OBSERVATIONS - January 05, 2006
HV8917_ROD/PIPE-DEPTH: 19.5 meters
HV8917_SLEEVE-DEPTH : 1.00 meters
HV8917
HV8917 HISTORY - Date Condition Report By
HV8917 HISTORY - 1990 MONUMENTED NGS
HV8917 HISTORY - 19910102 GOOD NGS
HV8917 HISTORY - 19990803 GOOD GEOMET
HV8917 HISTORY - 20000216 GOOD NGS
HV8917 HISTORY - 20000918 GOOD GEOMET
HV8917 HISTORY - 20050920 GOOD NGS
HV8917 HISTORY - 20060105 GOOD USPSQD
HV8917
HV8917 STATION DESCRIPTION
HV8917
HV8917'DESCRIBED BY NATIONAL GEODETIC SURVEY 1990
HV8917'THE MARK IS LOCATED ABOUT 14.45 KM (8.98 MI) SOUTH OF CAMBRIDGE AND
HV8917'7.0 KM (4.3 MI) SOUTHEAST OF CHURCH CREEK AT THE BLACKWATER WILDLIFE
HV8917'VISITORS CENTER. OWNERSHIP--U.S. GOVERNMENT.
HV8917'TO REACH THE MARK FROM THE INTERSECTION OF STATE HIGHWAYS 16 AND 335
HV8917'IN CHURCH CREEK, GO SOUTH ON STATE HIGHWAY 335 FOR 6.35 KM (3.95 MI)
HV8917'TO A PAVED ROAD LEFT. TURN LEFT AND GO EAST ON KEY WALLACE DRIVE FOR
HV8917'1.65 KM (1.03 MI) TO A PAVED ROAD RIGHT. TURN RIGHT AND GO SOUTH ON
HV8917'THE PAVED ROAD FOR 0.15 KM (0.09 MI) TO THE MARK ON THE RIGHT.
HV8917'IT IS 19.8 FT (6.0 M) WEST OF THE CENTERLINE OF THE PAVED ROAD, 138.7
HV8917'FT (42.3 M) NORTH OF THE NORTH END OF A CURB, 9.0 FT (2.7 M) EAST OF
HV8917'A WOODEN FENCE, AND 9.5 FT (2.9 M) EAST-SOUTHEAST OF A WITNESS POST.
HV8917'NOTE--ACCESS TO THE DATUM POINT IS THROUGH A 5-INCH LOGO CAP.
HV8917
HV8917 STATION RECOVERY (1991)
HV8917
HV8917'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1991
HV8917'STATION IS LOCATED ABOUT 14 KM (8.7 MI) SOUTH OF CAMBRIDGE, 7 KM
HV8917'(4.3 MI) SOUTHEAST OF CHURCH CREEK, AT THE BLACKWATER NATIONAL
HV8917'WILDLIFE REFUGE, AND IN A GRASS STRIP ALONG THE ENTRANCE ROAD TO THE
HV8917'VISITORS CENTER. OWNERSHIP--US DEPARTMENT OF THE INTERIOR, C/O
HV8917'MANAGER GLENN CAROWAN, PHONE 301-228-2692. VISITOR CENTER MANAGER IS
HV8917'MAGGIE BRIGGS, PHONE 301-228-2677. CONTACT THE REFUGE MANAGER FOR
HV8917'KEY TO LOCKED GATE AT VISITOR CENTER.
HV8917'TO REACH FROM THE JUNCTION OF US HIGHWAY 50 AND STATE HIGHWAY 16
HV8917'(ABOUT 2 KM (1.2 MI) EAST OF CAMBRIDGE), GO SOUTH AND WEST ON HIGHWAY
HV8917'16 FOR 11.64 KM (7.23 MI) TO ITS JUNCTION WITH STATE HIGHWAY 335 ON
HV8917'THE SOUTHWEST SIDE OF CHURCH CREEK. TURN LEFT, SOUTH, ON HIGHWAY 335
HV8917'FOR 6.17 KM (3.83 MI) TO A PAVED ROAD LEFT. TURN LEFT, EAST, ON KEY
HV8917'WALLACE DRIVE FOR 1.63 KM (1.01 MI) TO A PAVED ROAD RIGHT. TURN
HV8917'RIGHT, SOUTH, PASSING THROUGH GATE (LOCKED AFTER BUSINESS HOURS) ON
HV8917'THE PAVED ROAD FOR 0.14 KM (0.09 MI) TO THE STATION ON THE RIGHT.
HV8917'STATION MARK IS A PUNCH HOLE IN THE TOP OF A STEEL ROD ENCASED IN PCV
HV8917'PIPE WITH AN ALUMINUM LOGO CAP SET FLUSH WITH THE GROUND. IT IS 136
HV8917'M (446.2 FT) SOUTH-SOUTHWEST OF THE ENTRANCE GATE, 42.2 M (138.5 FT)
HV8917'NORTH-NORTHEAST OF THE CURB END AT THE VISITOR CENTER PARKING LOT, 6.0
HV8917'M (19.7 FT) WEST-NORTHWEST OF THE ROAD CENTER, 2.8 M (9.2 FT)
HV8917'EAST-SOUTHEAST OF A RAIL FENCE, AND 2.8 M (9.2 FT) SOUTHEAST OF A
HV8917'FIBERGLASS WITNESS POST.
HV8917'DESCRIBED BY G.R.HEID.
HV8917
HV8917 STATION RECOVERY (1999)
HV8917
HV8917'RECOVERY NOTE BY GEOMETRICS GPS INCORPORATED 1999 (BB)
HV8917'RECOVERED AS DESCRIBED.
HV8917
HV8917 STATION RECOVERY (2000)
HV8917
HV8917'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2000 (MLM)
HV8917'RECOVERED BY NATIONAL GEODETIC SURVEY, RECOVERED IN GOOD CONDITION AND
HV8917'AS PREVIOUSLY DESCRIBED.
HV8917
HV8917 STATION RECOVERY (2000)
HV8917
HV8917'RECOVERY NOTE BY GEOMETRICS GPS INCORPORATED 2000 (TL)
HV8917'RECOVERED IN GOOD CONDITION.
HV8917
HV8917 STATION RECOVERY (2005)
HV8917
HV8917'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2005 (GS)
HV8917'RECOVERED AS DESCRIBED.
HV8917
HV8917 STATION RECOVERY (2006)
HV8917
HV8917'RECOVERY NOTE BY US POWER SQUADRON 2006
HV8917'THIS MARK IS INSIDE A TUBE, WITH A COVER MARKED ACCESS COVER, AND IS
HV8917'UNDER WATER, CURRENTLY.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
AJ8018 ***********************************************************************
AJ8018 CBN - This is a Cooperative Base Network Control Station.
AJ8018 DESIGNATION - SHA 1001
AJ8018 PID - AJ8018
AJ8018 STATE/COUNTY- MD/DORCHESTER
AJ8018 USGS QUAD - HONGA (1984)
AJ8018
AJ8018 *CURRENT SURVEY CONTROL
AJ8018 ___________________________________________________________________
AJ8018* NAD 83(1991)- 38 20 53.71506(N) 076 13 39.02672(W) ADJUSTED
AJ8018* NAVD 88 - 4.103 (meters) 13.46 (feet) ADJUSTED
AJ8018 ___________________________________________________________________
AJ8018 X - 1,192,362.762 (meters) COMP
AJ8018 Y - -4,864,512.200 (meters) COMP
AJ8018 Z - 3,935,813.713 (meters) COMP
AJ8018 LAPLACE CORR- -6.10 (seconds) DEFLEC99
AJ8018 ELLIP HEIGHT- -30.93 (meters) (02/12/02) GPS OBS
AJ8018 GEOID HEIGHT- -35.03 (meters) GEOID03
AJ8018 DYNAMIC HT - 4.100 (meters) 13.45 (feet) COMP
AJ8018 MODELED GRAV- 980,001.2 (mgal) NAVD 88
AJ8018
AJ8018 HORZ ORDER - A
AJ8018 VERT ORDER - SECOND CLASS I
AJ8018 ELLP ORDER - FOURTH CLASS I
AJ8018
AJ8018.The horizontal coordinates were established by GPS observations
AJ8018.and adjusted by the National Geodetic Survey in February 2002..
AJ8018
AJ8018.The orthometric height was determined by differential leveling
AJ8018.and adjusted by the National Geodetic Survey in November 2003..
AJ8018
AJ8018.The X, Y, and Z were computed from the position and the ellipsoidal ht.
AJ8018
AJ8018.The Laplace correction was computed from DEFLEC99 derived deflections.
AJ8018
AJ8018.The ellipsoidal height was determined by GPS observations
AJ8018.and is referenced to NAD 83.
AJ8018
AJ8018.The geoid height was determined by GEOID03.
AJ8018
AJ8018.The dynamic height is computed by dividing the NAVD 88
AJ8018.geopotential number by the normal gravity value computed on the
AJ8018.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
AJ8018.degrees latitude (g = 980.6199 gals.).
AJ8018
AJ8018.The modeled gravity was interpolated from observed gravity values.
AJ8018
AJ8018; North East Units Scale Factor Converg.
AJ8018;SPC MD - 75,944.883 467,526.457 MT 0.99999196 +0 29 05.4
AJ8018;SPC MD - 249,162.50 1,533,876.38 sFT 0.99999196 +0 29 05.4
AJ8018;UTM 18 - 4,245,168.637 392,737.868 MT 0.99974169 -0 45 42.0
AJ8018
AJ8018! - Elev Factor x Scale Factor = Combined Factor
AJ8018!SPC MD - 1.00000485 x 0.99999196 = 0.99999681
AJ8018!UTM 18 - 1.00000485 x 0.99974169 = 0.99974654
AJ8018
AJ8018 SUPERSEDED SURVEY CONTROL
AJ8018
AJ8018 NAVD 88 (02/28/06) 4.10 (m) 13.5 (f) LEVELING 3
AJ8018
AJ8018.Superseded values are not recommended for survey control.
AJ8018.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AJ8018.See file dsdata.txt to determine how the superseded data were derived.
AJ8018
AJ8018_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH9273845169(NAD 83)
AJ8018_MARKER: DD = SURVEY DISK
AJ8018_SETTING: 38 = SET IN THE ABUTMENT OR PIER OF A LARGE BRIDGE
AJ8018_SP_SET: BRIDGE PARAPET WALL
AJ8018_STAMPING: SHA 1001 1992
AJ8018_MARK LOGO: MDSHA
AJ8018_MAGNETIC: O = OTHER; SEE DESCRIPTION
AJ8018_STABILITY: B = PROBABLY HOLD POSITION/ELEVATION WELL
AJ8018_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
AJ8018+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
AJ8018
AJ8018 HISTORY - Date Condition Report By
AJ8018 HISTORY - 1992 MONUMENTED MDSHA
AJ8018 HISTORY - 20000515 GOOD MDSHA
AJ8018 HISTORY - 20010215 GOOD MDSHA
AJ8018 HISTORY - 20050920 GOOD NGS
AJ8018
AJ8018 STATION DESCRIPTION
AJ8018
AJ8018'DESCRIBED BY MARYLAND DOT HIGHWAY ADMINISTRATION 2000 (SFK)
AJ8018'THE STATION IS LOCATED ABOUT 1.2 MILES (1.9 KM) NORTH OF FISHING
AJ8018'CREEK, IN THE TOWN OF HONGA. TO REACH THE STATION FROM THE EAST END
AJ8018'OF THE U.S.HIGHWAY 50 BRIDGE OVER THE CHOPTANK RIVER IN CAMBRIDGE, GO
AJ8018'SOUTHEAST ALONG U.S.HIGHWAY 50 FOR 1.65 MILES (2.66 KM) TO STATE
AJ8018'HIGHWAY 16. TURN RIGHT AND GO SOUTHWEST FOR 7.3 MILES (11.7 KM) TO
AJ8018'STATE HIGHWAY 335 IN CHURCH CREEK. TURN LEFT AND GO SOUTHWEST FOR 9.7
AJ8018'MILES (15.6 KM) TO A T-INTERSECTION WITH STATE HIGHWAY 336. TURN
AJ8018'RIGHT AND GO WEST THEN SOUTHWEST FOR 6.3 MILES (10.1 KM) TO THE ARCHED
AJ8018'HIGHWAY BRIDGE OVER FISHING CREEK AND THE STATION ON THE LEFT. THE
AJ8018'STATION IS A MARYLAND STATE SURVEY DISK SET IN A DRILL HOLE IN THE TOP
AJ8018'OF THE SOUTHEAST END OF THE EAST PARAPET WALL OF THE HIGHWAY BRIDGE.
AJ8018'IT IS 0.5 FEET (15.2 CM) NORTH OF THE SOUTH END OF THE PARAPET WALL
AJ8018'AND ABOUT 3.0 FEET (0.9 M) HIGHER THAN THE ROAD SURFACE.
AJ8018
AJ8018 STATION RECOVERY (2001)
AJ8018
AJ8018'RECOVERY NOTE BY MARYLAND DOT HIGHWAY ADMINISTRATION 2001 (SFK)
AJ8018'RECOVERED AS DESCRIBED.
AJ8018
AJ8018 STATION RECOVERY (2005)
AJ8018
AJ8018'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2005 (GS)
AJ8018'RECOVERED AS DESCRIBED.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
AI3287 ***********************************************************************
AI3287 CORS - This is a GPS Continuously Operating Reference Station.
AI3287 DESIGNATION - SOLOMONS ISLAND CORS ARP
AI3287 CORS_ID - SOL1
AI3287 PID - AI3287
AI3287 STATE/COUNTY- MD/CALVERT
AI3287 USGS QUAD - SOLOMONS ISLAND (1987)
AI3287
AI3287 *CURRENT SURVEY CONTROL
AI3287 ___________________________________________________________________
AI3287* NAD 83(CORS)- 38 19 07.92695(N) 076 27 14.00867(W) ADJUSTED
AI3287* NAVD 88 -
AI3287 ___________________________________________________________________
AI3287 EPOCH DATE - 2002.00
AI3287 X - 1,173,609.415 (meters) COMP
AI3287 Y - -4,871,162.329 (meters) COMP
AI3287 Z - 3,933,263.241 (meters) COMP
AI3287 ELLIP HEIGHT- -17.74 (meters) (03/??/02) GPS OBS
AI3287 GEOID HEIGHT- -34.37 (meters) GEOID03
AI3287
AI3287 HORZ ORDER - SPECIAL (CORS)
AI3287 ELLP ORDER - SPECIAL (CORS)
AI3287
AI3287.ITRF positions are available for this station.
AI3287.The coordinates were established by GPS observations
AI3287.and adjusted by the National Geodetic Survey in March 2002..
AI3287.The coordinates are valid at the epoch date displayed above.
AI3287.The epoch date for horizontal control is a decimal equivalence
AI3287.of Year/Month/Day.
AI3287
AI3287
AI3287.The PID for the CORS L1 Phase Center is AI3288.
AI3287
AI3287.The XYZ, and position/ellipsoidal ht. are equivalent.
AI3287
AI3287.The ellipsoidal height was determined by GPS observations
AI3287.and is referenced to NAD 83.
AI3287
AI3287.The geoid height was determined by GEOID03.
AI3287
AI3287; North East Units Scale Factor Converg.
AI3287;SPC MD - 72,540.158 447,757.196 MT 0.99999677 +0 20 33.9
AI3287;SPC MD - 237,992.17 1,469,016.73 sFT 0.99999677 +0 20 33.9
AI3287
AI3287! - Elev Factor x Scale Factor = Combined Factor
AI3287!SPC MD - 1.00000278 x 0.99999677 = 0.99999955
AI3287
AI3287 SUPERSEDED SURVEY CONTROL
AI3287
AI3287 NAD 83(CORS)- 38 19 07.92647(N) 076 27 14.00919(W) AD(1997.00) c
AI3287 ELLIP H (01/??/00) -17.73 (m) GP(1997.00) c c
AI3287
AI3287.Superseded values are not recommended for survey control.
AI3287.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
AI3287.See file dsdata.txt to determine how the superseded data were derived.
AI3287
AI3287_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SUH7290442195(NAD 83)
AI3287_MARKER: STATION IS THE ANTENNA REFERENCE POINT OF THE GPS ANTENNA
AI3287
AI3287 STATION DESCRIPTION
AI3287
AI3287'DESCRIBED BY NATIONAL GEODETIC SURVEY 2002
AI3287'STATION IS A GPS CORS. LATEST INFORMATION INCLUDING POSITIONS AND
AI3287'VELOCITIES ARE AVAILABLE IN THE COORDINATE AND LOG FILES ACCESSIBLE
AI3287'BY ANONYMOUS FTP OR THE WORLDWIDE WEB.
AI3287' FTP CORS.NGS.NOAA.GOV: CORS/COORD AND CORS/STATION_LOG
AI3287' HTTP://WWW.NGS.NOAA.GOV UNDER PRODUCTS AND SERVICES.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
HV0503 ***********************************************************************
HV0503 DESIGNATION - V 59
HV0503 PID - HV0503
HV0503 STATE/COUNTY- MD/DORCHESTER
HV0503 USGS QUAD - BLACKWATER RIVER (1982)
HV0503
HV0503 *CURRENT SURVEY CONTROL
HV0503 ___________________________________________________________________
HV0503* NAD 83(1991)- 38 27 32.64656(N) 076 01 52.37841(W) ADJUSTED
HV0503* NAVD 88 - 1.214 (meters) 3.98 (feet) ADJUSTED
HV0503 ___________________________________________________________________
HV0503 X - 1,207,176.076 (meters) COMP
HV0503 Y - -4,852,981.114 (meters) COMP
HV0503 Z - 3,945,451.347 (meters) COMP
HV0503 LAPLACE CORR- -2.25 (seconds) DEFLEC99
HV0503 ELLIP HEIGHT- -34.02 (meters) (02/28/06) GPS OBS
HV0503 GEOID HEIGHT- -35.23 (meters) GEOID03
HV0503 DYNAMIC HT - 1.213 (meters) 3.98 (feet) COMP
HV0503 MODELED GRAV- 980,010.4 (mgal) NAVD 88
HV0503
HV0503 HORZ ORDER - B
HV0503 VERT ORDER - SECOND CLASS 0
HV0503 ELLP ORDER - FIFTH CLASS I
HV0503
HV0503.The horizontal coordinates were established by GPS observations
HV0503.and adjusted by the National Geodetic Survey in February 2006..
HV0503
HV0503.The orthometric height was determined by differential leveling
HV0503.and adjusted by the National Geodetic Survey in June 1991..
HV0503
HV0503.The X, Y, and Z were computed from the position and the ellipsoidal ht.
HV0503
HV0503.The Laplace correction was computed from DEFLEC99 derived deflections.
HV0503
HV0503.The ellipsoidal height was determined by GPS observations
HV0503.and is referenced to NAD 83.
HV0503
HV0503.The geoid height was determined by GEOID03.
HV0503
HV0503.The dynamic height is computed by dividing the NAVD 88
HV0503.geopotential number by the normal gravity value computed on the
HV0503.Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45
HV0503.degrees latitude (g = 980.6199 gals.).
HV0503
HV0503.The modeled gravity was interpolated from observed gravity values.
HV0503
HV0503; North East Units Scale Factor Converg.
HV0503;SPC MD - 88,408.480 484,553.887 MT 0.99997614 +0 36 29.0
HV0503;SPC MD - 290,053.49 1,589,740.54 sFT 0.99997614 +0 36 29.0
HV0503;UTM 18 - 4,257,255.223 410,028.163 MT 0.99969969 -0 38 29.1
HV0503
HV0503! - Elev Factor x Scale Factor = Combined Factor
HV0503!SPC MD - 1.00000534 x 0.99997614 = 0.99998148
HV0503!UTM 18 - 1.00000534 x 0.99969969 = 0.99970503
HV0503
HV0503 SUPERSEDED SURVEY CONTROL
HV0503
HV0503 NAVD 88 (02/28/06) 1.21 (m) 4.0 (f) LEVELING 3
HV0503 NGVD 29 (??/??/??) 1.446 (m) 4.74 (f) ADJUSTED 2 0
HV0503
HV0503.Superseded values are not recommended for survey control.
HV0503.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
HV0503.See file dsdata.txt to determine how the superseded data were derived.
HV0503
HV0503_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH1002857255(NAD 83)
HV0503_MARKER: DB = BENCH MARK DISK
HV0503_SETTING: 7 = SET IN TOP OF CONCRETE MONUMENT
HV0503_SP_SET: SET IN TOP OF CONCRETE MONUMENT
HV0503_STAMPING: V 59 1942
HV0503_MARK LOGO: CGS
HV0503_MAGNETIC: N = NO MAGNETIC MATERIAL
HV0503_STABILITY: C = MAY HOLD, BUT OF TYPE COMMONLY SUBJECT TO
HV0503+STABILITY: SURFACE MOTION
HV0503_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
HV0503+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
HV0503
HV0503 HISTORY - Date Condition Report By
HV0503 HISTORY - 1942 MONUMENTED CGS
HV0503 HISTORY - 1943 GOOD CGS
HV0503 HISTORY - 20050920 GOOD NGS
HV0503
HV0503 STATION DESCRIPTION
HV0503
HV0503'DESCRIBED BY COAST AND GEODETIC SURVEY 1942
HV0503'AT BUCKTOWN.
HV0503'THIS MARK IS AT BUCKTOWN, DORCHESTER COUNTY, 28 FEET SOUTHEAST OF
HV0503'THE SOUTHEAST CORNER OF THE BRAMBLE STORE, IN LINE WITH THE
HV0503'SOUTHWEST FACE OF THE BUILDING, 48 FEET EAST OF THE CENTER LINE
HV0503'OF THE JUNCTION, IN THE NORTHWEST CORNER OF THE HOUSE YARD, NEAR
HV0503'SEVERAL SHRUBS, AND IS A STANDARD DISK SET IN THE TOP OF A
HV0503'CONCRETE POST ABOUT FLUSH WITH THE SURFACE OF THE GROUND.
HV0503
HV0503 STATION RECOVERY (1943)
HV0503
HV0503'RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1943
HV0503'RECOVERED IN GOOD CONDITION.
HV0503
HV0503 STATION RECOVERY (2005)
HV0503
HV0503'RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 2005 (GS)
HV0503'RECOVERED 7.4 M SOUTH FROM SW CORNER OF STORE, 7.3 M EAST FROM
HV0503'CENTERLINE OF BESIPITCH FERRY RD.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8216 ***********************************************************************
DH8216 HT_MOD - This is a Height Modernization Survey Station.
DH8216 DESIGNATION - WILDLIFE DRIVE SITE WEST SET
DH8216 PID - DH8216
DH8216 STATE/COUNTY- MD/DORCHESTER
DH8216 USGS QUAD - BLACKWATER RIVER (1982)
DH8216
DH8216 *CURRENT SURVEY CONTROL
DH8216 ___________________________________________________________________
DH8216* NAD 83(1991)- 38 26 16.87046(N) 076 07 07.34068(W) ADJUSTED
DH8216* NAVD 88 - 0.32 (meters) 1.0 (feet) GPS OBS
DH8216 ___________________________________________________________________
DH8216 X - 1,200,112.674 (meters) COMP
DH8216 Y - -4,856,228.619 (meters) COMP
DH8216 Z - 3,943,620.957 (meters) COMP
DH8216 LAPLACE CORR- -3.42 (seconds) DEFLEC99
DH8216 ELLIP HEIGHT- -34.83 (meters) (02/28/06) GPS OBS
DH8216 GEOID HEIGHT- -35.14 (meters) GEOID03
DH8216
DH8216 HORZ ORDER - B
DH8216 ELLP ORDER - FIFTH CLASS I
DH8216
DH8216.The horizontal coordinates were established by GPS observations
DH8216.and adjusted by the National Geodetic Survey in February 2006..
DH8216
DH8216.The orthometric height was determined by GPS observations and a
DH8216.high-resolution geoid model using precise GPS observation and
DH8216.processing techniques.
DH8216
DH8216.The X, Y, and Z were computed from the position and the ellipsoidal ht.
DH8216
DH8216.The Laplace correction was computed from DEFLEC99 derived deflections.
DH8216
DH8216.The ellipsoidal height was determined by GPS observations
DH8216.and is referenced to NAD 83.
DH8216
DH8216.The geoid height was determined by GEOID03.
DH8216
DH8216; North East Units Scale Factor Converg.
DH8216;SPC MD - 85,994.731 476,940.748 MT 0.99997886 +0 33 11.3
DH8216;SPC MD - 282,134.38 1,564,763.10 sFT 0.99997886 +0 33 11.3
DH8216;UTM 18 - 4,255,008.606 402,366.279 MT 0.99971739 -0 41 43.9
DH8216
DH8216! - Elev Factor x Scale Factor = Combined Factor
DH8216!SPC MD - 1.00000547 x 0.99997886 = 0.99998432
DH8216!UTM 18 - 1.00000547 x 0.99971739 = 0.99972285
DH8216
DH8216 SUPERSEDED SURVEY CONTROL
DH8216
DH8216.No superseded survey control is available for this station.
DH8216
DH8216_U.S. NATIONAL GRID SPATIAL ADDRESS: 18SVH0236655009(NAD 83)
DH8216_MARKER: Z = SEE DESCRIPTION
DH8216_SETTING: 0 = UNSPECIFIED SETTING
DH8216_SP_SET: USGS MEASURING DEVICE
DH8216_MARK LOGO: NONE
DH8216_STABILITY: D = MARK OF QUESTIONABLE OR UNKNOWN STABILITY
DH8216_SATELLITE: THE SITE LOCATION WAS REPORTED AS SUITABLE FOR
DH8216+SATELLITE: SATELLITE OBSERVATIONS - September 20, 2005
DH8216
DH8216 HISTORY - Date Condition Report By
DH8216 HISTORY - 20050920 MONUMENTED USGS
DH8216
DH8216 STATION DESCRIPTION
DH8216
DH8216'DESCRIBED BY US GEOLOGICAL SURVEY 2005 (GS)
DH8216'NO DESCRIPTION PUBLISHED AS MARK IS UNAVAILABLE EXCEPT TO OFFICIAL
DH8216'RESEARCH PERSONNEL.
1 National Geodetic Survey, Retrieval Date = MARCH 9, 2006
DH8215 ***********************************************************************
DH8215 HT_MOD - This is a Height Modernization Survey Station.
DH8215 DESIGNATION - WOLF PIT
DH8215 PID - DH8215
DH8215 STATE/COUNTY- MD/DORCHESTER
DH8215 USGS QUAD - BLACKWATER RIVER (1982)
DH8215
DH8215