The soil borrow material to be used to construct a highway embankment has a wet unit weight of 15.4 kN/m³, a water content of 9%, and the specific gravity of the soil solids is 2.67. The specifications require that the soil be placed in the fill so that the dry unit weight is 17.9 kN/m³ and the water content be held to 20%. a. How many cubic meters of borrow are required to construct an embankment having a 612, 000-m³ net section volume? b. How many gallons of water must be added per cubic meter of borrow material assuming no loss by evaporation? c. If the compacted fill becomes saturated at constant volume, what will be the water content and unit weight?

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Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.