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Details for Benchmark: KV0631

N 40° 53.017 W 074° 28.783 (NAD 83)

Altitude: 523.97

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

Location:
In MORRIS county, NJ View Original Datasheet
Designation:
Z 18
Marker Type:
bench mark disk
Setting:
abutments and piers of large bridges
Stability:
Probably hold position/elevation well.

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Found together with tigi67.

Moj prvi Benchmarks najden na popotovanju po ZDA skupaj z ekipo ridler & cmokica.

N 40° 53.038 W 074° 28.785

Found as described. Located using Leica Smartnet

Located per directions. This is on the south end of the western abutment of the Boonton Line of NJ Transit M&E Lines.

[Photos:]
photoKV0631 Close up
photoKV0631 with GPS
photoKV0631 Z 13 View north along Rte 53
photoKV0631 Z13 Denville NJ View Southwest
Across Rte 53

Documented History (by the NGS)

1/1/1935 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1935 6.4 MI N FROM MORRISTOWN. 6.4 MILES NORTH ALONG THE DELAWARE, LACKAWANNA AND WESTERN RAILROAD FROM THE MORRIS STREET UNDERPASS AT MORRISTOWN, MORRIS COUNTY, AT DENVILLE, AT A BRANCH LINE LEADING TO ROCKAWAY, AT THE OVERPASS OF STATE HIGHWAY 5N, AND IN THE TOP OF THE SOUTHWEST CORNER OF THE SUPPORTING WALL. A STANDARD DISK, STAMPED Z 18 1935. NOTE-- THE DELAWARE, LACKAWANNA AND WESTERN RAILROAD IS NOW THE ERIE LACKAWANNA RAILROAD. THE ERIE RAILROAD IS NOW THE ERIE LACKAWANNA RAILROAD.
7/9/1991 by NJGS (GOOD)
RECOVERY NOTE BY NEW JERSEY GEODETIC SURVEY 1991 THE STATION IS LOCATED IN THE TOWN OF DENVILLE IN MORRIS COUNTY ON THE SIDE OF STATE HIGHWAY 53 IN THE TOP OF THE SOUTHWEST CORNER ABUTMENT OF A RAILROAD BRIDGE OVERPASS, STRUCTURE NUMBER 1411150, OF AN ABANDONED SPUR LINE. TO REACH THE STATION FROM THE JUNCTION OF STATE HIGHWAY 10 AND THE EXIT RAMP FOR STATE HIGHWAY 53 NORTH, GO NORTHWEST ON STATE HIGHWAY 53 FOR 2.55 MI (4.10 KM) TO THE RAILROAD BRIDGE OVERPASS AND THE STATION ON THE LEFT. THE RAILROAD BRIDGE DIRECTLY TO THE NORTH IS THE MAIN LINE RAILROAD ROUTE, CARRYING TWO SETS OF TRACKS OVER STATE HIGHWAY 53. THE STATION IS 5.3 FT (1.6 M) WEST FROM THE EAST FACE OF THE WEST ABUTMENT AND 4.2 FT (1.3 M) SOUTH FROM THE CENTERLINE OF THE SOUTH THROUGH GIRDER. THE STATION, A STANDARD BENCHMARK DISK, STAMPED Z 18 1935 IS SET ABOUT 2.0 FT (0.6 M) BELOW THE LEVEL OF THE FORMER RAILROAD BED.
4/3/1995 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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