So that they don't fall down unexpectedly, especially if they have people on them.
civil engineers, structural engineers, and architects are the main bridge builders.
so they can start it from underground
Enginers build bridges but it costs a lot of money $$$$$$$$$$$$$$$$$$$$$$$
Civil engineers and Structural engineers.
Depends on the type of engineer. Originally, it meant one who cared for, and operated engines- like a railroad locomotive. While it still means that, there are other types of engineers. Civil engineers design roads, bridges, dams, and large buildings. Electrical engineers design electrical distribution and supply systems. Chemical engineers design chemical manufacturing processes. Military engineers may build bridges, destroy bridges, place or clear minefields, build obstacles, etc.
Yes, they can but it's not necessary. Civil engineers are more of a profession where they build on bigger scales, like towers, bridges, dams...etc. Constuction workers are mostly used in building houses.
engineers engineers
bridges
Engineers design things such as bridges or pipes based on scientific principles.
Civil Engineers.
for bridges.
Roads and bridges.