Hackensack, NJ Community Message Boards
General Category => Hackensack Discussion => Topic started by: Editor on October 02, 2017, 09:59:07 PM
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So who knows what this is? Where have you seen it?
More to come...
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You mean this? They're all over the place!
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Geodetic control survey points support the production of consistent and spatial accurate data for surveying and mapping. Permanent geodetic monuments provide a consistent coordinate system and serve as the basis for computing lengths and distances between relative positions.
See also: Work of the NJ Geodetic Control Survey (http://www.state.nj.us/dep/njgs/enviroed/oldpubs/bulletin46.pdf)
The full "station" list is here: http://www.state.nj.us/dep/njgs/enviroed/oldpubs/bulletin48.pdf (Hackensack is about midway through the document).
It would interesting to know how many are remaining. Benchmark hunting (https://www.geocaching.com/mark/) anyone?
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Surveyors use these benchmarks as reference points when doing land surveys.
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there's one in the railroad abutment on First St, east side of the street, embedded in the stonework.