Determine the internal normal force, shear force, and moment at points D and F in the beam.

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

A: Consider the figure,

Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.