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Details for Benchmark: KV0677

N 40° 44.967 W 074° 15.450 (NAD 83)

Altitude: 155.89

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

Location:
In ESSEX county, NJ View Original Datasheet
Designation:
J 20
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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I live right down the street, so this wasn't too difficult. : )

Found it.®

Found by description. On southeast corner of northeast headwall of railroad bridge over Meade Street, in the Village of South Orange. Erie Lackawanna Railroad is now the Morris and Essex Division of NJ Transit.

[This entry was edited by Harry Dolphin on Thursday, July 06, 2006 at 6:03:22 PM.]

[Photos:]
photoKV0677 South Orange Essex NJ Close Up
photoKV0677 South Orange Essex NJ View Southwest
photoKV0677 South Orange Essex NJ View North

Documented History (by the NGS)

01/01/1935 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1935 AT SOUTH ORANGE. AT SOUTH ORANGE, ESSEX COUNTY, ON THE DELAWARE, LACKAWANNA AND WESTERN RAILROAD, AT THE MEADE STREET UNDERPASS, AT THE BACK OF A BANISTER, AND IN THE TOP OF THE SOUTHEAST CORNER OF THE CONCRETE TOPPING BLOCK. A STANDARD DISK, STAMPED J 20 1935. NOTE-- THE DELAWARE, LACKAWANNA AND WESTERN RAILROAD IS NOW THE ERIE LACKAWANNA RAILROAD. THE ERIE RAILROAD IS NOW THE ERIE LACKAWANNA RAILROAD.
01/01/1971 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1971 RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (g = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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