Details for Benchmark: LX6435
N 41° 15.960 W 072° 45.632 (NAD 83)
Coordinates may not be exact. Altitude is SCALED and location is ADJUSTED. (more info)
- In NEW HAVEN county, CT View Original Datasheet
- Marker Type:
- NGS Benchmark
- setting not listed - see description
- Most reliable and expected to hold position/elevation well.
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Documented History (by the NGS)
|01/01/1933 by CGS (MONUMENTED)
|DESCRIBED BY COAST AND GEODETIC SURVEY 1933 (GCM)
THIS STATION IS LOCATED ON THE SW EXTREMITY OF WHAT THE CHART CALLS PLEASANT POINT BUT WHICH IS KNOWN LOCALLY AS VEDDERS POINT. DIRECTLY TO W, ACROSS A SMALL BIGHT, IS THE LOADING DOCK OF THE NEW HAVEN TRAP ROCK COUNTY. THE LOCATION IS PRACTICALLY AN ISLET, CUT OFF TO THE N AND NE BY A TIDAL MARSH.
STATION AND REFERENCE MARKS ARE STANDARD BRONZE DISKS SET IN OUTCROPPING BEDROCK AS DESCRIBED IN NOTES 2, AND 12A.
THE STATION IS ON THE LEDGE MARKING THE SHORE, ABOUT 3 METERS OUTSIDE THE VEGETATION LINE AND ABOUT 5 METERS FROM HIGH WATER LINE.
REFERENCE MARK NO.1 BEARS N 10 DEG W (MAGNETIC).
REFERENCE MARK NO.2 BEARS S 55 DEG E (MAGNETIC).
BOTH REFERENCE MARKS ARE IN THE SAME LEDGE AS THE STATION.
THE ISLET IS THE PROPERTY OF THE NEW HAVEN TRAP ROCK COUNTY.
HEIGHT OF LIGHT ABOVE STATION MARK 2.4 METERS.
|01/01/1961 by CGS (SEE DESCRIPTION)
|RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1961 (GFW)
STATION AND REFERENCE MARKS 1 AND 2 WERE RECOVERED IN GOOD CONDITION. THE STATION IS STAMPED, VEDDER 1933 AND THE R.M.S ARE STAMPED, VEDDER NO.1 1933 AND VEDDER NO.2 1933. THE DISTANCE AND MAGNETIC BEARING TO THE R.M.S WERE CHECKED AND FOUND CORRECT AS PUBLISHED.
THE ORIGINAL DESCRIPTION BY G.C.M. IN 1933 IS COMPLETE AND ADEQUATE FOR RECOVERY.
|01/06/1991 by USPSQD (GOOD)
|RECOVERY NOTE BY US POWER SQUADRON 1991 (SEW)
RECOVERED IN GOOD CONDITION.
- The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in August 1998.
- The orthometric height was scaled from a topographic map.
- The Laplace correction was computed from DEFLEC99 derived deflections.
- The geoid height was determined by GEOID99.