Lalith Senanayake's Discussions (61)

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"Blue tops" in Land Surveying

Why is the term bluetop used in surveying?
1200681229?profile=originalMost US Surveyors know what it is during constrction stage of dirt(another word) work,
I think dirtwork means playing with soil excavation and filling.
More clarifications required .
Thesae terms used when I

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