LX4842 ***********************************************************************
LX4842  DESIGNATION -  COLCHESTER NORTH BASE
LX4842  PID         -  LX4842
LX4842  STATE/COUNTY-  CT/TOLLAND
LX4842  USGS QUAD   -  COLUMBIA (1984)
LX4842
LX4842                         *CURRENT SURVEY CONTROL
LX4842  ___________________________________________________________________
LX4842* NAD 83(1996)-  41 37 40.93853(N)    072 20 46.06359(W)     ADJUSTED
LX4842* NAVD 88     -       122.     (meters)     400.     (feet)  SCALED
LX4842  ___________________________________________________________________
LX4842  LAPLACE CORR-          -2.82  (seconds)                    DEFLEC99
LX4842  GEOID HEIGHT-         -29.79  (meters)                     GEOID99
LX4842
LX4842  HORZ ORDER  -  FIRST
LX4842
LX4842.The horizontal coordinates were established by classical geodetic methods
LX4842.and adjusted by the National Geodetic Survey in August 1998.
LX4842
LX4842.The orthometric height was scaled from a topographic map.
LX4842
LX4842.The Laplace correction was computed from DEFLEC99 derived deflections.
LX4842
LX4842.The geoid height was determined by GEOID99.
LX4842
LX4842;                    North         East     Units   Scale      Converg.
LX4842;SPC CT       -   240,738.053   338,455.161   MT  0.99998449 +0 16 04.0
LX4842;UTM  18      - 4,611,881.508   721,072.040   MT  1.00020147 +1 45 49.2
LX4842
LX4842:                Primary Azimuth Mark                     Grid Az
LX4842:SPC CT       -  COLCHESTER N BASE AZ MK                  169 26 24.2
LX4842:UTM  18      -  COLCHESTER N BASE AZ MK                  167 56 39.0
LX4842
LX4842|---------------------------------------------------------------------|
LX4842| PID    Reference Object                     Distance      Geod. Az  |
LX4842|                                                           dddmmss.s |
LX4842|        COLCHESTER N BASE RM 1               38.426 METERS 08215     |
LX4842|        COLCHESTER N BASE AZ MK                            1694228.2 |
LX4842|        COLCHESTER N BASE RM 2               45.455 METERS 17135     |
LX4842|---------------------------------------------------------------------|
LX4842
LX4842                          SUPERSEDED SURVEY CONTROL
LX4842
LX4842  NAD 83(1996)-  41 37 40.93792(N)    072 20 46.06330(W) AD(       ) 1
LX4842  NAD 83(1992)-  41 37 40.93793(N)    072 20 46.06332(W) AD(       ) 1
LX4842  NAD 83(1992)-  41 37 40.93932(N)    072 20 46.06507(W) AD(       ) 1
LX4842  NAD 83(1986)-  41 37 40.93934(N)    072 20 46.06509(W) AD(       ) 1
LX4842  NAD 27      -  41 37 40.58200(N)    072 20 47.76500(W) AD(       ) 1
LX4842
LX4842.Superseded values are not recommended for survey control.
LX4842.NGS no longer adjusts projects to the NAD 27 or NGVD 29 datums.
LX4842.See file dsdata.txt to determine how the superseded data were derived.
LX4842
LX4842  HISTORY     - Date     Condition        Recov. By
LX4842  HISTORY     - 1942     MONUMENTED       CGS
LX4842  HISTORY     - 1971     SEE DESCRIPTION  NGS
LX4842
LX4842                          STATION DESCRIPTION
LX4842
LX4842''DESCRIBED BY COAST AND GEODETIC SURVEY 1942 (KBJ)
LX4842''STATION IS LOCATED APPROXIMATELY 3.5 MILES N OF COLCHESTER,
LX4842''0.15 MILE SW OF THE AMSTON DEPOT AND AT THE JUNCTION OF THE SPUR
LX4842''LINE TO COLCHESTER AND THE MAIN LINE OF THE NEW YORK, NEW HAVEN
LX4842''AND HARTFORD RAILROAD.  ON LAND OWNED BY MR. C.F. BAILEY, 70 FEET
LX4842''W OF THE W RAIL OF THE MAIN LINE, 8 FEET NE OF THE REFERENCE
LX4842''POST.  THE DISK IS STAMPED COLCHESTER NORTH BASE 1942.
LX4842''
LX4842''REFERENCE MARK NO. 1 IS 126.35 FEET NE OF THE STATION, 28 FEET
LX4842''W OF THE W RAIL OF THE COLCHESTER SPUR LINE, 24 FEET E OF THE E
LX4842''RAIL OF THE MAIN LINE.  THE DISK IS STAMPED COLCHESTER NORTH BASE
LX4842''NO. 1, 1942.
LX4842''
LX4842''REFERENCE MARK NO. 2 IS 149.31 FEET S OF THE STATION, 25 FEET
LX4842''E OF THE E RAIL OF THE MAIN LINE, 34 FEET SW OF A TRIANGLE BLAZED
LX4842''HIGH LINE POLE.  THE DISK IS STAMPED COLCHESTER NORTH BASE NO. 2,
LX4842''1942.
LX4842''
LX4842''AZIMUTH MARK IS APPROXIMATELY 0.5 MILE S OF THE STATION, 23.3
LX4842''FEET N OF A RAILROAD CROSSING SIGN, 22.6 FEET W OF THE CENTERLINE
LX4842''OF THE HIGHWAY, 16.3 FEET E OF THE E RAIL OF THE COLCHESTER SPUR
LX4842''LINE TRACK AND 4.2 FEET NNE OF THE REFERENCE POST.  THE DISK IS
LX4842''STAMPED COLCHESTER NORTH BASE 1942.
LX4842''
LX4842''TO REACH THE STATION FROM THE JUNCTION OF HIGHWAYS 2 AND 85 IN
LX4842''COLCHESTER, BY GOING N AND W ON NOS. 2 AND 85 FOR 0.35 MILE,
LX4842''THENCE RIGHT ON HIGHWAY 85 FOR 3.0 MILES TO A RAILROAD CROSSING
LX4842''AND THE AZIMUTH MARK ON THE LEFT OF THE HIGHWAY JUST AFTER
LX4842''CROSSING THE TRACKS AS DESCRIBED.  CONTINUE STRAIGHT AHEAD ON
LX4842''HIGHWAY FOR 0.85 MILE TO A RAILROAD CROSSING, TURN SHARP LEFT
LX4842''ALONG LEFT SIDE OF THE TRACKS FOR 0.15 MILE TO THE AMSTON DEPOT,
LX4842''CONTINUE AROUND DEPOT AND ALONG THE LEFT SIDE OF THE TRACKS FOR
LX4842''0.1 MILE TO THE JUNCTION OF THE SPUR LINE TO THE MAIN LINE,
LX4842''CROSS THE TRACKS AND FOLLOW ALONG THE RIGHT SIDE OF THE TRACKS
LX4842''FOR 0.1 MILE TO THE STATION ON THE RIGHT AS DESCRIBED.
LX4842''
LX4842''HEIGHT OF LIGHT ABOVE STATION MARK 33 METERS.
LX4842
LX4842                          STATION RECOVERY (1971)
LX4842
LX4842''RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1971 (LFS)
LX4842''STATION MONUMENT WAS FOUND BROKEN OFF AND THE DISK GONE.  BOTH
LX4842''REFERENCE MARKS WERE FOUND IN GOOD CONDITION.  AZIMUTH MARK
LX4842''WAS NOT FOUND, ALTHOUGH A SEARCH WAS MADE ON THE PUBLISHED
LX4842''DISTANCES.  THIS POINT FALLS ON A GRAVEL AND CINDER ROAD
LX4842''SHOULDER.  THE LINE FROM STATION TO AZIMUTH MARK IS
LX4842''BLOCKED.  STATION MONUMENT WAS REMOVED AND UNDERGROUND MARK
LX4842''RECOVERED.  A NEW SURFACE MARK WAS THEN SET, PLUMBED OVER THE
LX4842''UNDERGROUND.  ANGLE BETWEEN REFERENCE MARKS CHECKED CLOSELY,
LX4842''BUT DIFFERENCES WERE NOTED IN DISTANCES.  THE 1971 DISTANCE TO
LX4842''RM NO.  1 IS 0.087 METER SHORTER THAN 1942, AND THE 1971 DISTANCE
LX4842''TO RM NO. 2 IS 0.028 METER SHORTER THAN 1942.
LX4842''
LX4842''STATION IS LOCATED IN TIMBER ALONG NORTHWEST SIDE OF ABANDONED
LX4842''RAILROAD GRADE, ABOUT 200 YARDS SOUTHWEST OF THE OLD AMSTON
LX4842''DEPOT, AND NEAR A RAILROAD GRADE FORK.
LX4842''
LX4842''TO REACH STATION FROM THE JUNCTION OF STATE HIGHWAYS 16 AND 85
LX4842''IN COLCHESTER, GO WEST AND NORTH ON HIGHWAY 85 FOR 3.3 MILES TO
LX4842''CROSSING OF OLD RAILROAD GRADE.  CONTINUE FOR 0.8 MILE TO TEXACO
LX4842''STATION ON RIGHT.  TURN SHARP LEFT AND GO SOUTHERLY ON TRACK
LX4842''ROAD FOR 0.1 MILE TO OLD DEPOT.  CONTINUE FOR 0.15 MILE TO
LX4842''JOG.  CROSS RAILROAD GRADE AND CONTINUE FOR 0.05 MILE TO STATION
LX4842''ON RIGHT.
LX4842''
LX4842''STATION MARK IS A STANDARD DISK STAMPED COLCHESTER NORTH BASE
LX4842''1942 1971, SET IN THE TOP OF A 14-INCH-DIAMETER, CONCRETE
LX4842''PROJECTING 2 INCHES.  IT IS 74.5 FEET NORTHWEST OF CENTER LINE
LX4842''OF ROAD, 28.0 FEET NORTHWEST OF WOVEN WIRE FENCE, 60 FEET
LX4842''NORHTEAST OF STONE FENCE, AND 3.5 FEET SOUTHEAST OF A METAL
LX4842''WITNESS POST.  UNDERGROUND MARK IS A STANDARD DISK
LX4842''STAMPED COLCHESTER NORTH BASE 1942, SET IN CONCRETE 3 FEET
LX4842''BELOW GROUND.
LX4842''
LX4842''RM NO. 1 IS A STANDARD DISK STAMPED COLCHESTER NORTH BASE NO 1
LX4842''1942, SET IN THE TOP OF A 12-INCH-SQUARE, CONCRETE MONUMENT FLUSH
LX4842''WITH GROUND, ON SLIGHT HIGH GROUND INSIDE FORK OF RAILROAD GRADES,
LX4842''40 YARDS SOUTH OF JOG IN TRACK ROAD, 18.5 FEET SOUTHEAST OF
LX4842''CENTER LINE OF TRACK ROAD AND 4.55 FEET HIGHER THAN STATION MARK.
LX4842''
LX4842''REFERENCE MARK NUMBER TWO IS A STANDARD DISK STAMPED COLCHESTER
LX4842''NORTH BASE NO 2 1942, SET IN THE TOP OF A 12-INCH-SQUARE, CONCRETE
LX4842''MONUMENT PROJECTING 4 INCHES.  24.7 FEET SOUTHEAST OF CENTER
LX4842''LINE OF ROAD, 55 YARDS SOUTHWEST OF A FORK WHERE A TRACK ROAD
LX4842''RUNS DOWN BETWEEN THE 2 RAILROAD GRADES.  IT IS 1.4 FEET HIGHER
LX4842''THAN STATION MARK.
LX4842''
LX4842''AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN
LX4842''3-1/2 MILES NORTH OF COLCHESTER.