Science Common Sense

706 - How do bridges and tunnels help in transportation?

Bridges and tunnels help in transportation by connecting two separate places and allowing people and vehicles to cross over or under obstacles.

• Bridges help you cross over rivers, mountains, or valleys, making it easy to travel to the other side.
• Tunnels help you cross under rivers, mountains, or cities, making it easy to travel without having to go all around the obstacle.

They save time and make traveling easier and safer.