Skip to Content

Details for Benchmark: KU1250

N 40° 35.067 W 073° 55.533 (NAD 83)

Altitude: 10.19

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

Location:
In KINGS county, NY View Original Datasheet
Designation:
L 353
Marker Type:
bench mark disk
Setting:
massive structures
Stability:
Probably hold position/elevation well.

Must Read!

Benchmarks may be on private property or in dangerous locations. Obey local laws. By using the services on Geocaching.com you agree to this disclaimer.

Found in good condition, as described, and sporting lots more paint, but the markings are clear enough.

[Photos:]
photoL353 Disk
photoL353 Setting

Found as described in good condition (with a thick coat of paint).

To get to this, go east along the street that goes along the north side of Shore Parkway (aka the Belt Parkway) about 1/4 mile east from the overpass of Knapp Street over the Parkway. That is where the west bound exit from Parkway is and there are several marine businesses there. Walk east along the north side of the parkway (be careful of traffic) about 100 yards and you'll see the brick building hidden in the trees north of the Parkway.

First to Find!

[Photos:]
photoKU1250 "L 353" setting, Sheepshead Bay, Brooklyn
View of the brick building hidden in the trees just north of the Parkway.
photoKU1250 "L 353", Sheepshead Bay, Brooklyn NY

Documented History (by the NGS)

01/01/1952 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1952 AT NEW YORK. AT NEW YORK, IN BOROUGH OF BROOKLYN, ABOUT 0.35 MILE EAST ALONG SHORE PARKWAY FROM ITS UNDERPASS UNDER KNAPP STREET, SET VERTICALLY IN THE SOUTH FACE OF A 10 BY 25-FOOT BRICK AND CONCRETE TRANSFORMER BUILDING, 47 1/2 FEET NORTH OF NORTH CURB OF NORTH LANE OF SHORE PARKWAY, 1.3 FEET EAST OF SOUTHWEST CORNER OF BUILDING AND 2.3 FEET ABOVE GROUND.

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.

Advertising with Us

Return to the Top of the Page