Roads, bridges, tunnels, dams, and airports are all designed by civil engineers. They apply their knowledge of materials science, engineering, economics, physics, geology, and hydraulics to build the physical infrastructure required for modern life. There are, of course, innumerable sub-specialties. 

Surveying and mapping engineers select the greatest construction sites. Dams, flood control, wells, and reservoirs are the primary concerns of hydraulic and irrigation engineers. Environmental engineers work with wastewater treatment plants, rubbish disposal facilities, and recycling plants. And traffic engineers are experts in the design of 'people-moving systems,' whether they are underground subways, commuter railroads, or new and improved roads and highways. 

The minimal educational qualification is a bachelor's degree. This is a five-year programme at some universities. However, co-op, junior college, and night school programmes are also offered. 

It takes a lot of effort to become a civil engineer. However, if you enjoy being a part of large, complex initiatives that enhance people's lives, this could be the career for you.