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Construction

The art, trade, or work of building.

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Construction > Surveying

headwater

Construction; Surveying

(1) The source of a stream. (2) The water upstream from a structure or point on a stream.

gradient

Construction; Surveying

(1) A change of elevation, velocity, pressure, or other characteristics per unit length. (2) Slope.

grade

Construction; Surveying

(1) The slope of a road, a channel, or natural ground. (2) The finished surface of a canal bed, roadbed, top of embankment, or bottom of excavation; any surface prepared to a ...

gradation

Construction; Surveying

The distribution of the various sized particles that constitute a sediment, soil, or other material, such as rip-rap.

gabion

Construction; Surveying

A wire mesh cage, usually rectangular, filled with rock and used to protect channel banks and other sloping areas form erosion.

foundation drain

Construction; Surveying

A pipe or series of pipes that collects groundwater from the foundation or footing of structures to improve stability.

flume

Construction; Surveying

A constructed channel lined with erosion-resistant materials used to convey water on the steep grades without erosion.