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Details for Benchmark: KU2634

N 40° 45.870 W 073° 26.987 (NAD 83)

Altitude: 216

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

Location:
In NASSAU county, NY View Original Datasheet
Designation:
BETH
Marker Type:
triangulation station disk
Setting:
set into the top of a round concrete monument
Stability:

Reference Points

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Station BETH (PID=KU2634) Recovery Report 12/12/2018

Beth is at the very top of a small hill on land owned by Nassau County. The land is currently rented and farmed by Restoration Farms, whose owners very kindly gave me permission to visit the site.

According to the data sheet, the monument projects 2 inches but this is no longer true. There is an unusually large buildup of leaf litter in the area, and the monument is now about 1-2 inches below the surface. It would have been very difficult to find without the remnant of the original witness post and the 4 nearby “anchor stubs” mentioned in the datasheet.
The anchor stubs are unusual and I have never observed similar markers at another site. They mark corners of a square centered on the station monument and are probably remnants of the light platform erected by the original survey party. While these artifacts probably originally projected a foot or more above the ground, they have now been partially buried in accumulated litter and are easy to overlook. Since they are sharp-edged and made of very firmly embedded metal, they could pose an injury hazard to an unwary visitor. They should probably be removed in the interest of safety, or at least marked with bright paint to render them more visible.

I looked for the two reference marks but they have most likely also been buried under leaf litter. Undoubtedly, they still exist given their isolated location, and should be easy to find with a metal detector. Unfortunately, I visited the site on a business trip and didn’t have access to my usual kit of search tools.

[Photos:]
photoSW Anchor
Watch your shins around these babies
photoFar view
Showing remains of witness post in the foreground
photoRestoration Farm from Spagnoli Road
The mark is up the hill behind the barn
photoCloseup of station mark
Poor picture as I had nothing to clean it off with

Documented History (by the NGS)

01/01/1951 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1951 (LFW) THE STATION IS LOCATED ON A WOODED RIDGE ABOUT 1.3 MILE NORTH OF FARMINGDALE AND 1/2 MILE NORTH OF OLD BETHPAGE, NEAR THE NORTHEAST PORTION OF BETHPAGE STATE PARK, AND ON THE PROPERTY OF THE NASSAU BRICK CO. IT IS IN A DENSELY WOODED AREA BETWEEN ROUND SWAMP ROAD ON THE WEST AND A CULTIVATED VALLEY ON THE EAST. THE MARK PROJECTS 2 INCHES AND IS STAMPED BETH 1951. REFERENCE MARKS NO. 1 AND NO. 2 PROJECT 4 INCHES AND ARE STAMPED BETH NO. 1 1951 AND BETH NO. 2 1951 RESPECTIVELY. THE AZIMUTH MARK, NOTE 16A, IS 0.1 MILE NORTHWEST OF THE INTERSECTION OF ROUND SWAMP ROAD AND OLD BETHPAGE ROAD, 18 FEET NORTHEAST OF CENTERLINE OF OLD BETHPAGE ROAD, 13 FEET NORTHWEST OF POWER POLE NO. 4 AND 4 FEET SOUTHEAST OF A WITNESS POST. IT IS ACROSS THE ROAD FROM THE HOME OF L. BOYD. THE MARK IS STAMPED BETH 1951. THIS AZIMUTH MARK MUST BE CLEARED FOR GROUND VISIBILITY. TO REACH THE STATION FROM ROUND SWAMP ROAD ON THE WEST EDGE OF OLD BETHPAGE, GO NORTHEAST ON ROUND SWAMP ROAD TO A Y-INTERSECTION WITH OLD BETHPAGE ROAD. HERE GO RIGHT ON A TRACK ROAD FOR 0.2 MILE, THEN BEAR LEFT FOR 0.1 MILE TO A FORK BY AN OPEN AREA. CONTINUE AHEAD ON A DIM ROAD TO SUMMIT OF RIDGE AND THE STATION SITE. THE AZIMUTH MARK IS 0.1 MILE NORTHWEST OF THE Y-INTERSECTION.
01/01/1963 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1963 (ETO) THE STATION AND REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION. PUBLISHED DESCRIPTION IS INADEQUATE. NEW DESCRIPTION FOLLOWS. THE STATION IS LOCATED ON A WOODED RIDGE ABOUT 2 MILES NORTH OF FARMINGDALE AND .5 MILE NORTH OF OLD BETHPAGE, NEAR THE NORTHEAST PORTION OF BETHPAGE STATE PARK. THE AREA IS DENSELY WOODED AND BOUNDED ON THE WEST BY ROUND SWAMP ROAD AND ON THE EAST BY WINDING ROAD. THE STATION IS ON TOP OF THE RIDGE AT THE INTERSECTION OF TWO PATHS. THE MARK PROJECTS ABOUT 2 INCHES ABOVE THE GROUND AND IS STAMPED BETH 1951. TO REACH THE STATION FROM FARMINGDALE GO NORTH ON ROUND SWAMP ROAD FOR 2.6 MILES TO THE Y INTERSECTION FORMED BY ROUND SWAMP ROAD AND OLD BETHPAGE ROAD. FROM THE INTERSECTION CONTINUE NORTH ON ROUND SWAMP ROAD FOR .2 MILE TO THE INTERSECTION WITH WINDING ROAD, TURN RIGHT ON WINDING ROAD AND GO .2 MILE TO A FIRE HYDRANT ON THE LEFT SIDE OF THE ROAD. THE STATION IS APPROXIMATELY 335 FEET WEST OF THE FIRE HYDRANT AND SLIGHTLY TO THE LEFT OF PERPENDICULAR OF THE ROAD AT THE FIRE HYDRANT.
01/01/1966 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1966 (JLC) THE STATION MARK, REFERENCE MARKS 1 AND 2 WERE RECOVERED IN GOOD CONDITION. THE AZIMUTH MARK WAS SEARCHED FOR BUT NOT RECOVERED. THE ROAD HAS BEEN WIDENED AT THIS POINT AND IT IS OBVIOUS THAT THE MARK HAS BEEN DESTROYED. FOLLOWING IS A NEW AND COMPLETE DESCRIPTION. THE STATION IS LOCATED ABOUT 5 MILES EAST OF THE CENTER OF HICKSVILLE, 1.3 MILES NORTH OF FARMINGDALE, 1/2 MILE NORTH OF OLD BETHPAGE AND ON PROPERTY OWNED BY THE COUNTY. TO REACH THE STATION FROM THE JUNCTION OF SOUTH OYSTER BAY ROAD AND OLD COUNTRY ROAD IN HICKSVILLE, GO EAST-NORTHEAST ON OLD COUNTRY ROAD FOR 1.9 MILES TO A JUNCTION WITH PLAINVIEW ROAD. TURN RIGHT AND GO SOUTH FOR 0.05 MILE TO A FORK, BEAR LEFT ON OLD BETHPAGE ROAD FOR 0.9 MILE TO THE OLD BETHPAGE POST OFFICE ON THE LEFT. CONTINUE AHEAD FOR 0.2 MILE TO A TRAFFIC LIGHT AND THE JUNCTION WITH ROUND SWAMP ROAD AND SWEET HOLLOW ROAD, GO EASTERLY ON SWEET HOLLOW ROAD FOR 0.1 MILE TO A DIRT ROAD ON THE LEFT. TURN LEFT AND GO NORTH ON THE DIRT ROAD FOR 0.2 MILE TO THE HIGHEST POINT OF HILL AND THE STATION. THE STATION MARK IS A STANDARD DISK STAMPED BETH 1951 SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT PROJECTING 1 INCH ABOVE THE GROUND. IT IS 11.2 FEET NORTHEAST OF THE SOUTHWEST ANGLE IRON ANCHOR STUB, 10.6 FEET NORTH-NORTHWEST OF THE SOUTHEAST ANCHOR STUB, 8.3 FEET SOUTHEAST OF THE NORTHWEST ANCHOR STUB, 6.9 FEET WEST-SOUTHWEST OF THE NORTHEAST ANCHOR STUB, AND 4.8 FEET SOUTHWEST OF A METAL WITNESS POST. REFERENCE MARK NO. 1 IS A STANDARD DISK STAMPED BETH NO 1 1951 SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT PROJECTING 1 INCH ABOVE THE GROUND. IT IS 83.8 FEET NORTH-NORTHEAST OF THE SOUTHEAST ANGLE IRON ANCHOR STUB, 71.7 FEET NORTH-NORTHEAST OF THE METAL WITNESS POST AND ABOUT 5 FEET LOWER THAN THE STATION MARK. NOTE 11A REFERENCE MARK NO. 2 IS A STANDARD DISK STAMPED BETH NO 2 1951 SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT PROJECTING 2 INCHES ABOVE THE GROUND. IT IS 72.2 FEET WEST-SOUTHWEST OF THE SOUTHWEST ANGLE IRON ANCHOR STUB, 31 FEET EAST OF THE CENTER OF A TRACK ROAD AND ABOUT 5 FEET LOWER THAN THE STATION MARK. NOTE 11A NO SUITABLE LOCATION WAS FOUND FOR AN AZIMUTH MARK. HEIGHT OF LIGHT ABOVE STATION MARK 72.8 FEET.
01/01/1967 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1967 (JLC) THE STATION MARK AND ALL REFERENCE MARKS WERE RECOVERED AS DESCRIBED BY J. L. COOK IN 1966 WITH THE EXCEPTION OF THE DISTANCES TO REFERENCE MARKS 1 AND 2. THE DISTANCE TO REFERENCE MARK 1 WAS FOUND TO BE 0.065 METER SHORTER AND THE DISTANCE TO REFERENCE MARK 2 WAS FOUND TO BE 0.042 METER SHORTER.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in January 1999.
  • 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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