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An 1865 map of Lower Manhattan below 14th Street showing land reclamation along the shoreline. [1] The expansion of the land area of Lower Manhattan in New York City by land reclamation has, over time, greatly altered Manhattan Island's shorelines on the Hudson and East rivers as well as those of the Upper New York Bay. The extension of the ...
A trial pit (or test pit) is an excavation of ground in order to study or sample the composition and structure of the subsurface, usually dug during a site investigation, a soil survey or a geological survey. [1] Trial pits are dug before the construction. They are dug to determine the geology and the water table of that site.
This is a list of neighborhoods in the New York City borough of Manhattan arranged geographically from the north of the island to the south. The following approximate definitions are used: Upper Manhattan is the area above 96th Street. Midtown Manhattan is the area between 34th Street and 59th Street. Lower Manhattan is the area below 14th Street.
The cone penetration or cone penetrometer test (CPT) is a method used to determine the geotechnical engineering properties of soils and delineating soil stratigraphy. It was initially developed in the 1950s at the Dutch Laboratory for Soil Mechanics in Delft to investigate soft soils. Based on this history it has also been called the "Dutch ...
Essex Crossing is an under-construction mixed-use development in New York City's Lower East Side, at the intersection of Delancey Street and Essex Street just north of Seward Park. Essex Crossing will comprise nearly 2,000,000 sq ft (200,000 m 2) of space on 6 acres (2 + 1 ⁄ 2 ha) and will cost an estimated US$1.1 billion.
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A soil test is a laboratory or in-situ analysis to determine the chemical, physical or biological characteristics of a soil. Possibly the most widely conducted soil tests are those performed to estimate the plant-available concentrations of nutrients in order to provide fertilizer recommendations in agriculture.
Soil resistivity, measured in ohm-centimeters (Ω⋅cm), varies with moisture content and temperature changes. In general, an increase in soil moisture results in a reduction in soil resistivity. The pore fluid provides the only electrical path in sands, while both the pore fluid and the surface charged particles provide electrical paths in clays.