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Details for Benchmark: MY2937

N 42° 21.638 W 071° 02.860 (NAD 83)

Altitude: 3

Coordinates may not be exact. Altitude is SCALED and location is ADJUSTED. (more info)

Location:
In SUFFOLK county, MA View Original Datasheet
Designation:
132 M USE 1939
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:

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New granite and brick pavers now cover the end of this pier.

Documented History (by the NGS)

01/01/1939 by MAGS (MONUMENTED)
DESCRIBED BY MASSACHUSETTS GEODETIC SURVEY 1939 LOCATED IN THE NORTHEASTERN PART OF BOSTON ON WATER FRONT ON NE CORNER OF UNITED FRUIT COMPANY WHARF, E OF ATLANTIC AVENUE. 13.7 FEET E AND 13.4 FEET N OF NE CORNERS OF UNITED FRUIT COMPANY BUILDING AND 16 FEET N OF GATE ON WALK AT E SIDE OF BUILDING. AN OCCUPIED SECOND-ORDER STATION MARKED BY A PRICK PUNCH MARK IN SPIKE ON WHARF PLANKING ENCLOSED IN CHISELED TRIANGLE IN PIERHEAD PLANKING.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in June 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.

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