Cement is too heavy.
To provide better intra city connectivity during the games, the Delhi government is constructing 24 new flyovers and six road-over-bridges for the 2010 Delhi Commonwealth Games
oramp deyuk
3 FLYOVERS
Yes they can last longer than wooden bridges. :)
There are many advantages of flyovers. For example, flyovers help to streamline the traffic control system by helping to reduce traffic congestion. With urban road development, flyovers assist in creating additional road space overhead.
Flyovers are purely aesthetic, just as fireworks or banners may be.
The military. All Nascar fans are big supporters of the Military,and we love the Flyovers
Cement bricks are made of Cement- it's in the name.
Portland cement is made of,CaoSiO2Al2O3Fe2O3MgOAlkaliesSO3
type 1
steel bridges are made out of steel OBVIOUSLY !!!
Flyovers.