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Details for Benchmark: LW3489

N 41° 58.674 W 071° 33.230 (NAD 83)

Altitude: 585

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

Location:
In PROVIDENCE county, RI View Original Datasheet
Designation:
WOON
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

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Recovered the station mark and the three reference marks. All are in good condition.

[Photos:]
photoStation mark and compass, North Smithfield RI
photoRM #1 and compass, North Smithfield RI
photoRM #2 and compass, North Smithfield RI
photoRM #3 and compass, North Smithfield RI

Documented History (by the NGS)

01/01/1968 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1968 (LMC) THE STATION IS LOCATED IN NORTH SMITHFIELD TOWNSHIP, ON THE SUMMIT OF WOONSOCKET HILL, NEAR THE SITE OF THE N SMITHFIELD MOWRY FIRE TOWER, ABOUT 2-1/2 MILES SOUTHWEST OF WOONSOCKET, 2 MILES SOUTHEAST OF SLATERSVILLE AND ON PROPERTY CONTROLLED BY THE STATE. TO REACH FROM THE JUNCTION OF STATE HIGHWAYS 5 AND 104 ABOUT 3-1/2 MILES SOUTHWEST OF WOONSOCKET, GO NORTH ON HIGHWAY 5 FOR 0.15 MILE TO A ROAD FORK. TAKE THE RIGHT FORK AND GO NORTH ON WOON. HILL ROAD FOR 0.55 MILE TO A T-ROAD. TURN RIGHT AND CONTINUE NORTHEAST AND NORTH ON WOON. HILL ROAD FOR 0.7 MILE TO A GRAVELED SIDE ROAD LEFT. TURN LEFT AND GO NORTHWESTERLY ON A WINDING GRAVELED ROAD FOR 0.4 MILE TO THE FIRE TOWER AND THE STATION 128 FEET NORTHWEST OF THE FIRE TOWER. STATION MARK, A STANDARD DISK STAMPED WOON 1968, IS SET IN THE TOP OF A ROUND CONCRETE MONUMENT WHICH PROJECTS 3 INCHES. IT IS 114 FEET NORTHWEST OF THE NORTHWEST LEG OF THE FIRE TOWER, 6.7 FEET WEST OF A CONCRETE PILLAR 3 FEET HIGH (OLD FIRE TOWER FOUNDATION) AND 5 FEET SOUTHEAST OF ANOTHER CONCRETE PILLAR PROJECTING 3 FEET ALSO. R.M. 1, A STANDARD DISK STAMPED WOON NO 1 1968, IS CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK PROJECTING ABOUT 3 FEET ON THE SOUTH SIDE. IT IS 39.7 FEET WEST-NORTHWEST OF THE NORTHWEST LEG OF THE FIRE TOWER AND 54.4 FEET WEST OF THE NORTHEAST LEG OF THE FIRE TOWER. R.M. 2, A STANDARD DISK STAMPED WOON NO 2 1968, IS CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK WITH A 5 X 10 FOOT SURFACE AND PROJECTING 3 FEET ON THE WEST END. IT IS 2 FEET EAST OF THE WEST EDGE OF THE ROCK OUTCROP AND 21.5 FEET WEST OF A CONCRETE PILLAR THAT PROJECTS 3 FEET. R.M. 3, A STANDARD DISK STAMPED WOON NO 3 1968, IS CEMENTED IN A DRILL HOLE IN OUTCROPPING BEDROCK WITH A SURFACE AREA OF ABOUT 2 X 6 FOOT AND PROJECTING ABOUT 1 FOOT. IT IS 103 FEET SOUTHEAST OF THE SOUTHEAST LEG OF THE FIRE TOWER, 57.5 FEET SOUTH-SOUTHEAST OF A POWER POLE AND 2.6 FEET NORTHWEST OF A METAL WITNESS POST. HEIGHT OF LIGHT ABOVE STATION MARK 17 METERS.
01/01/1985 by RIGS (GOOD)
RECOVERY NOTE BY RHODE ISLAND GEODETIC SURVEY 1985 (RJP) THE STATION WAS RECOVERED AT THIS DATE. THE NEW PROPERTY OWNER IS MR. DREW PALMER OF WOONSOCKET.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in August 1998.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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