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Dredging, the excavating or scooping out of soil, mud, sand or rock under water by a machine called a dredge. Dredging is used in deepening and widening the beds of rivers, canals, harbors. The forms of modern dredges are very numerous, different conditions requiring different forms.

Dredge

Dredging, the excavating or scooping out of soil, mud, sand or rock under water by a machine called…

A short-handled vessel generally used in weighing sugar, coffee, etc.

Scoop

A short-handled vessel generally used in weighing sugar, coffee, etc.

"In railroad construction and canal- or road-work, a large scooping bucket armed with teeth and used with a steam-shovel or operated by power by means of chains that drag the bucket over or through loose material, causing it to scoop up a load." -Whitney, 1911

Shovel Bucket

"In railroad construction and canal- or road-work, a large scooping bucket armed with teeth and used…