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Details for Benchmark: KV0142

N 40° 53.250 W 074° 03.017 (NAD 83)

Altitude: 20.34

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

Location:
In BERGEN county, NJ View Original Datasheet
Designation:
J 12
Marker Type:
bench mark disk
Setting:
abutments and piers of large bridges
Stability:
Probably hold position/elevation well.

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Found early morning

Refind for benchmarking Poker Fun Run.

[Photos:]
photoKV0142 Hackensack Brgen NJ Close Up
photoKV0142 Hackensack Bergen NJ Close Up
photoKV0142 Hackensack Bergen NJ View South

Found it.®

Found by description.

[Photos:]
photoKV0142 Hackensack Bergen NJ Close Up
Somewhat the worse for wear.
photoKV0142 Hackensack Bergen NJ View Southeast

Found in good condition.

[Photos:]
photoKen Castro
photoKen Castro

Documented History (by the NGS)

01/01/1933 by CGS (MONUMENTED)
01/01/1934 by CGS (GOOD)
DESCRIBED BY COAST AND GEODETIC SURVEY 1934 AT HACKENSACK. AT HACKENSACK, BERGEN COUNTY, ON FIRST STREET, ABOUT 600 FEET EAST OF THE HIGH SCHOOL, AT THE NEW YORK, SUSQUEHANNA AND WESTERN RAILROAD OVERHEAD CROSSING, DIRECTLY UNDER THE CENTERLINE OF THE TRACK, IN THE SOUTH MASONRY BACK WALL OF THE UNDERPASS, 30 FEET SOUTH OF THE CENTERLINE OF FIRST STREET, AND ABOUT 5 FEET HIGHER THAN THE SIDEWALK. A STANDARD DISK, STAMPED 21.401 J 12 1933.
01/01/1956 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1956 RECOVERED IN GOOD CONDITION.
01/01/1979 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1979 RECOVERED IN GOOD CONDITION.
08/27/1996 by NJGS (GOOD)
RECOVERY NOTE BY NEW JERSEY GEODETIC SURVEY 1996 (ECB) RECOVERED AS DESCRIBED.
03/09/1997 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1997 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. WARNING-Repeat measurements at this control monument indicate possible vertical movement.
  • This Tidal Bench Mark is designated as VM 12934 by the Center for Operational Oceanographic Products and Services.
  • 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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