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Details for Benchmark: KV1243

N 40° 58.967 W 074° 50.483 (NAD 83)

Altitude: 587.92

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

Location:
In SUSSEX county, NJ View Original Datasheet
Designation:
T 35
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

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Found it this time! Northeast side of Route 519 (Wintermute Road) just north of Hibler Road, Green Township, Sussx County NJ. Bridge is over Bear Brook.

[Photos:]
photoKV1243 Green Sussex NJ Close Up
photoKV1243 Green Sussex NJ View Northeast

A local resident took exception to our attempt to access a county-owned bridge with a county highway passing over it. Found the disk, but were unable to take a photo of it. Another time, when we're in the area.

N 40° 58.980 W 074° 50.504

Bridges are easy and reliable finds.

[Photos:]
photoT 35 Sussex Co. NJ
photoT 35 Sussex Co. NJ facing SE toward mark

Documented History (by the NGS)

01/01/1942 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1942 1.6 MI NW FROM GREENDELL. 0.2 MILE WEST ALONG THE ERIE-LACKAWANNA RAILROAD FROM THE STATION AT GREENDELL, THENCE 1.4 MILES NORTHWEST ALONG A GRAVEL ROAD, THENCE ABOUT 250 FEET NORTHWEST ALONG A BLACK TOP ROAD, AT A CONCRETE BRIDGE. A STANDARD DISK, SET IN THE TOP OF THE SOUTHEAST WING WALL, AND 13 FEET EAST OF THE CENTERLINE OF THE ROAD. NOTE-- THE DELAWARE, LACKAWANNA AND WESTERN RAILROAD IS NOW THE ERIE LACKAWANNA RAILROAD. THE ERIE RAILROAD IS NOW THE ERIE LACKAWANNA RAILROAD.

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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