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Details for Benchmark: KU1622

N 40° 56.850 W 073° 55.317 (NAD 83)

Altitude: 439.63

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

Location:
In BERGEN county, NJ View Original Datasheet
Designation:
F 40
Marker Type:
bench mark disk
Setting:
setting not listed - see description
Stability:
Mark of questionable or unknown stability.

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Found as described.

[Photos:]
photoKU1622 "F 40" Alpine NJ
This was taken from the side of the Palisades Parkway looking north. South bound traffic is on coming. Observant benchmarkers will notice something interesting in the far background.
photoKU1622 "F 40" Alpine NJ
The top of the west headwall, south end.
photoKU1622 "F 40" Alpine NJ
Closeup

Found in good condition.

[Photos:]
photoKU1622 Disk - Close Up.
photoKU1622 Disk - Close Up with GPS.

Found it.®

N 40° 56.850 W 073° 55.355

Found by description. On top of south end of west headwall of bridge over trail leading to Palisades Interstate Park. Thanks to Borress for the photos. I left my camera in the car.

[Photos:]
photoKU1622 Alpine Bergen NJ Close Up
photoKU1622 Alpine Bergen NJ View North
Along Palisades Parkway, west side, southbound lane.
photoKU1622 GPS with Coordinates.

Documented History (by the NGS)

01/01/1956 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1956 0.3 MI NE FROM ALPINE. 0.2 MILE EAST ALONG CLOSTER DOCK ROAD FROM THE ALPINE METHODIST CHURCH, 0.1 MILE NORTH ALONG U.S. HIGHWAY 9W, 0.1 MILE NORTH OF THE JUNCTION OF CLOSTER DOCK ROAD LEADING WEST, SET IN TOP AND AT THE SOUTH END OF THE CONCRETE CURBING OF THE BRIDGE HEADWALL OF A LARGE ARCHED BRIDGE OVER AN ASPHALT WALKWAY, 83 FEET EAST OF THE CENTERLINE OF U.S. HIGHWAY 9W, 31.2 FEET WEST OF THE CENTERLINE OF THE SOUTH-BOUND TRAFFIC LANE OF THE PALISADES PARKWAY, 1.2 FEET NORTH OF THE SOUTH END OF BRIDGE, 1 FOOT ABOVE THE LEVEL OF PARKWAY.
02/21/1992 by NJGS (GOOD)
RECOVERY NOTE BY NEW JERSEY GEODETIC SURVEY 1992 (FAC) RECOVERED AS DESCRIBED.
08/27/1995 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1995 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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