4.8 The soil borrow material to be used to construct a highway embankment has a mass unit weight of 98.0 pcf, a water content of 6%, and the specific gravity of the soil solids is 2.65. The specifications require the soil be compacted to a dry unit weight of 112 lb per cf and the water content be held to 13%. (279,355 bcy, 21.0 gal/bcy borrow, 18%, 132.1 lb/cf) a. How many cubic yards of borrow are required to construct an embankment having a 230,600 cy net section volume? b. How many gallons of water must be added to the borrow material, on a per cubic yard basis, assuming no loss by evaporation? c. If the compacted fill becomes saturated at constant volume, what will be the water content and mass unit weight of the soil?

Q: Determine the height h above the base of the 13.57" T 1.24" 1.24" £ 6.33" -0.86" 12.05"

A:

Q: Locate the centroid of the plane area shown.

A: Given: r1=72 mmr2=120 mm To find: Centroid of plane area.

Q: Determine the centroid (x, y) of the parabolic area.

A:

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Q: r 10 in. B a = 5 in. a = 5 in. Fig. P5.8

A:

Q: Find the value of k so that x + 3 is a factor of 2x³ + 5x² + kx – 12. С. -7 D. 5 А. - 13 В. 12

A: Given:- x + 3 is a factor of 2x3 + 5x² + kx - 12.

Q: Q2: Determine the centroid of shaded arca shown in Figure. Take b-10 cm.

A: Given: The value of b is 10 cm. Consider the figure,

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A:

Q: Locate the centroid (x̄, y̅) of the cross-sectional area.

A: Consider the figure,

Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.