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Details for Benchmark: LW1019

N 41° 28.850 W 071° 31.783 (NAD 83)

Altitude: 182.93

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

Location:
In WASHINGTON county, RI View Original Datasheet
Designation:
352
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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Documented History (by the NGS)

Unknown by RIBPR (MONUMENTED)
01/01/1969 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1969 0.5 MI W FROM KINGSTON. ABOUT 0.5 MILE WEST ALONG STATE HIGHWAY 138 FROM THE JUNCTION OF STATE HIGHWAY 108 AT KINGSTON, AT THE JUNCTION OF LOWER COLLEGE ROAD LEADING NORTH, 27 FEET SOUTH OF THE CENTER LINE OF THE HIGHWAY, 13 FEET EAST OF THE CENTER LINE OF A PRIVATE DRIVEWAY LEADING SOUTH, 35 FEET SOUTHEAST OF THE CENTER OF THE JUNCTION OF THE HIGHWAY AND ROAD, 6 FEET EAST OF THE WEST END OF A ROCK FENCE, 0.7 FOOT NORTH OF THE NORTH SIDE OF ROCK FENCE, 1 FOOT ABOVE THE LEVEL OF THE HIGHWAY AND SET IN THE TOP OF A CONCRETE POST PROJECTING 4 INCHES ABOVE THE LEVEL OF THE GROUND. NOTE-- MARK MAY BE REACHED BY GOING 1.45 MILE EAST ALONG STATE HIGHWAY 138 FROM THE POST OFFICE AT WEST KINGSTON.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (WHW) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (AFA) RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (FW) RECOVERED IN GOOD CONDITION.
01/01/1990 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1990 (FW) 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.