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Details for Benchmark: KV6450

N 40° 20.617 W 074° 40.233 (NAD 83)

Altitude: 200.2

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

Location:
In MERCER county, NJ View Original Datasheet
Designation:
11141
Marker Type:
survey disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

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This one was also flagged and had some sidewalk writing that helped

[Photos:]
photoThe view of the sidewalk and street curb
photoRound monument
features a round monument
photoThe Disk

Documented History (by the NGS)

01/01/1941 by NJGS (MONUMENTED)
05/30/1990 by NJGS (GOOD)
DESCRIBED BY NEW JERSEY GEODETIC SURVEY 1990 THE STATION IS LOCATED IN THE BOROUGH OF PRINCETON, ON THE NORTHWEST SIDE OF STATE ROUTE 206, ABOUT 0.15 KM (0.09 MI) NORTHEAST ON ROUTE 206 FROM ITS JUNCTION WITH ELM ROAD, ALSO ABOUT 0.8 KM (0.5 MI) SOUTHWEST FROM THE JUNCTION OF STATE HIGHWAY ROUTES 206 AND 27. THE STATION IS 0.3 M (1.0 FT) NORTH OF THE NORTH CURBLINE OF ROUTE 206, 10.5 M (34.4 FT) NORTH OF A FIRE HYDRANT, 7.0 M (23.0 FT) EAST OF THE CENTERLINE OF A DRIVEWAY, 20.9 M (68.6 FT) NORTHWEST OF A LIGHT POLE AND IS FLUSH WITH THE GROUND.
04/05/1995 by NJGS (GOOD)
RECOVERY NOTE BY NEW JERSEY GEODETIC SURVEY 1995 (ECB) RECOVERED AS DESCRIBED.

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 April 1995.
  • 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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