RIKERS ISLAND PEN ROOF TANK — NGS KU4033 — New York, US

USNGStrigunknown#637143
Latitude
40.796907°
Longitude
-73.888574°
Verifications
0
Last checked
Never
# RIKERS ISLAND PEN ROOF TANK — NGS KU4033 This triangulation station occupies the roof tank structure at the Rikers Island Penitentiary complex in New York City (40.7969°N, 73.8886°W). Established by NGS as a first-order trig point, this benchmark provides horizontal and vertical control for the New York metropolitan geodetic network. The elevated roof-mounted location offers excellent intervisibility for conventional theodolite observations and supports modern positioning applications including static GNSS sessions, RTK base station operations, and network densification projects. The stable masonry structure and commanding elevation make it suitable for vertical control work and precise leveling campaigns. Access requires coordination with facility authorities.

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RIKERS ISLAND PEN ROOF TANK — NGS KU4033 — New York, US is a triangulation station located in United States, catalogued in the US NGS dataset. The point has been assigned the stable identifier #637143 on SurveyingPedia. Its coordinates in WGS84 are 40.796907°, -73.888574°, corresponding to 40° 47′ 48.86″ N, 73° 53′ 18.87″ W in the traditional degrees-minutes-seconds format. This page is a self-updating reference — all data is aggregated from public open sources and cross-checked periodically against the originating agency.

Professional surveyors, engineers, and topographers use points like RIKERS ISLAND PEN ROOF TANK — NGS KU4033 — New York, US to anchor total-station traverses, verify GNSS/RTK solutions, calibrate levelling instruments, and validate survey deliverables against known coordinates. The record on this page is refreshed daily via automated pipelines that monitor the public sources for any updates, corrections, or status changes.

Coordinate formats

WGS84 (decimal)40.796907, -73.888574
WGS84 (DMS)40° 47′ 48.86″ N, 73° 53′ 18.87″ W
UTM zone (approx.)Zone 18N (approx.)
Precise conversionOpen in coordinate converter →

Geodetic context in United States

The national geodetic reference in United States is maintained by National Geodetic Survey (NGS). The active datum is NAD83(2011) / NATRF2022 (active). Coordinates shown on this page are expressed in WGS84 (ETRF/ITRF-compatible) which is directly usable in most modern GNSS receivers. For cadastral work in United States you may need to convert to the local datum using the Coordinate Hub.

Browse the full list of indexed control points in United States from the country page.

Nearby benchmarks

The closest 6 indexed control points within roughly 50 km of this location:

US NGS · triangulation station
RIKERS ISLAND CHIMNEY — NGS KU4025 — New York, US
0.0 km away · US
US NGS · triangulation station
RIKERS ISLAND 1903 — NGS KU4028 — New York, US
0.2 km away · US
US NGS · triangulation station
SEWER HOLE — NGS KU2174 — New York, US
0.7 km away · US
GeoNames topographic database · cape
Barretto Point
0.7 km away · US
US NGS · triangulation station
SOUTH BROTHER ISLAND LT — NGS KU2175 — New York, US
0.8 km away · US
US NGS · triangulation station
SOUTH BROTHERS IS LEDGE LT — NGS KU2176 — New York, US
1.0 km away · US

Frequently asked questions

What is RIKERS ISLAND PEN ROOF TANK — NGS KU4033 — New York, US?

RIKERS ISLAND PEN ROOF TANK — NGS KU4033 — New York, US is a triangulation station located in United States, catalogued in the US NGS network. It has the public identifier #637143. The point is used for geodetic reference, topographic surveys, and related measurement workflows.

Where are the exact coordinates of RIKERS ISLAND PEN ROOF TANK — NGS KU4033 — New York, US?

The position of RIKERS ISLAND PEN ROOF TANK — NGS KU4033 — New York, US in WGS84 is 40.796907°, -73.888574° (decimal), or 40° 47′ 48.86″ N, 73° 53′ 18.87″ W in degrees-minutes-seconds. For planar surveys in United States this falls approximately in UTM Zone 18N (approx.).

How can I reach and visit this triangulation station?

Use the satellite imagery above to see the surrounding area. You can open this location directly in Google Maps, Google Earth, Bing Maps, or OpenStreetMap using the buttons provided. Many geodetic points are accessible to the public; some are on protected or private land — check local regulations before any field visit. Always bring documentation or your credentials if you plan to use the marker for professional measurement.

Is this point verified and usable for professional surveying?

This record has been community-verified 0 times. Data quality depends on the source: NGS and official national agency points are typically centimetre-accurate, OpenStreetMap survey points are metre-accurate, and GeoNames topographic landmarks (peaks, hills) are reference-grade only. Always cross-reference with the original agency datasheet before using this point for cadastral, legal, or safety-critical work.

Original source: this record was imported from ngs_public. Always refer to the original datasheet for the most up-to-date and authoritative data.