How Do You Pour Concrete Under Water?

Bridges have always amazed me. As someone who works with engineers but does not have that background, the process of constructing a bridge just seems incredible. My burning question has always been about how the foundation is built and holds strong. Really, how DO you pour concrete under water?

How do you pour concrete underwater?

My question has been answered, and with a neat little graphic to boot. The New Mississippi River Bridge project in St. Louis is offering a virtual tour that answers all of your questions about how these massive structures take shape. Don't miss the pictures of the coffer dam, where crews are able to work on the riverbed.

If you're in the St. Louis area, you can see these steps in person. On the last Friday of each month, schedule a tour where you can see the action up close. Check out the specifics here. 

Take a Tour!

Have you ever wondered what goes into building a major river bridge? Tours are now being offered for the New Mississippi River Bridge in St. Louis, where you can see up close how these impressive structures take shape.

Up to 25 people can participate in two tours each month. They are 1.5 hours long and take place on the final Friday of each month at 12:30 and 2 p.m.

"This is a good opportunity for people to see the ongoing activities on the river as part of building the main span for the new bridge," said Greg Horn, P.E., project director for the New Mississippi River Bridge. "We have to limit tours though to minimize the impact to our contractor team and to ongoing construction."

Reservations are required. For full details, call 314-453-1808 and schedule your tour!