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Details for Benchmark: LW1017

N 41° 28.850 W 071° 31.183 (NAD 83)

Altitude: 245.37

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

Location:
In WASHINGTON county, RI View Original Datasheet
Designation:
KINGSTON RM 1
Marker Type:
reference mark 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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Recovered in good condition at N 41° 28.874 W 071° 31.182.

[This entry was edited by shorbird on Monday, May 31, 2010 at 1:08:32 PM.]

[Photos:]
photoLW1017(KINGSTON RM 1) - South Kingstown RI
photoLW1017 - Eye level
photoLW1017 - Looking N from mark

Documented History (by the NGS)

01/01/1969 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1969 0.2 MI NE FROM KINGSTON. ABOUT 0.1 MILE EAST ALONG STATE HIGHWAY 138 FROM THE JUNCTION OF STATE HIGHWAY 108 AT KINGSTON, THENCE 0.05 MILE NORTH ALONG A PRIVATE DRIVEWAY TO THE KINGSTON FIRE DISTRICT WATER DEPT., 47 FEET SOUTHEAST OF THE EAST SIDE OF THE DOOR ON THE SOUTH SIDE OF THE LARGE ELEVATED STEEL WATER TAK, 83.1 FEET NORTHEAST OF THE STATION MARK DESCRIBED, 19 FEET EAST OF THE EAST CORNER OF A CONCRETE BASE WITH MANHOLE COVER, 15 FEET WEST OF THE WEST SIDE OF A ROCK FENCE, 132 FEET NORTH OF RM 2 DESCRIBED, ABOUT LEVEL WITH THE DRIVEWAY AND SET IN THE TOP OF A CONCRETE POST PROJECTING 3 INCHES ABOVE THE LEVEL OF THE GROUND.
01/01/1984 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1984 RECOVERED IN GOOD CONDITION.
01/01/1988 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1988 (FW) RECOVERED IN GOOD CONDITION.
03/11/1988 by RIGS (GOOD)
RECOVERY NOTE BY RHODE ISLAND GEODETIC SURVEY 1988 RECOVERED IN GOOD CONDITION.
01/01/1989 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1989 (AFA) RECOVERED IN GOOD CONDITION.
01/01/1990 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1990 (FW) RECOVERED IN GOOD CONDITION.
07/29/1995 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.