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Details for Benchmark: KV1328

N 40° 46.367 W 074° 48.317 (NAD 83)

Altitude: 529.06

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

Location:
In MORRIS county, NJ View Original Datasheet
Designation:
E 24
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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Found it.® I let the dolphin climb through the rose bushes.

N 40° 46.390 W 074° 48.333

New bidge, but the old headwalls are still there. About a third of the disk is missing, but it still reads E 24.

[Photos:]
photoKV1328 Washington Morris NJ Close Up
photoKV1328 Washington Morris NJ View SE
photoKV1328 View Northest along trail/pipeline
photoKV1328 with GPS
photoKV1328 with GPS and coords

I think there is a good chance this mark is still there. The bridge is still there with its stone abutments and wing walls. Unfortunately the foundations are overgrown and not easily accessible. When I was standing on the bridge leaning over the rail to see if there was any sign of the mark, several yellow jackets decided that I was too close to their home, and one stung me. I abandoned all ideas of climbing into the brush to clean off the tops of the stones.

Documented History (by the NGS)

01/01/1942 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1942 1.4 MI NE FROM MIDDLE VALLEY. 1.4 MILES NORTHEAST ALONG THE CENTRAL RAILROAD OF NEW JERSEY FROM THE CROSSING AT MIDDLE VALLEY, MORRIS COUNTY, 17 1/2 RAILS SOUTHWEST OF MILEPOST 10, AT AN OVERPASS, IN THE MIDDLE OF THE TOP STONE, 41.2 FEET SOUTHWEST OF A POLE, 37 FEET NORTH OF IRON POST 255, 5.9 FEET NORTHWEST OF THE CENTERLINE OF THE TRACK, AND ABOUT 1.5 FEET LOWER THEN THE TRACK.

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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