A new bridge in Buchanan County, Iowa could last up to 200 years and require little to no maintenance. This is a huge improvement as bridges made out of traditional concrete mix tend to only last 50 years and often need repairs every 15 to 20 years. Using this new concrete mix, could significantly reduce infrastructure costs and the need for continued repairs.
This 52-foot-long bridge is made up of “ultra-high performance concrete” that didn’t come into commercial use until 2000, according to the Federal Highway Administration.
This particular concrete engineering experts say is eight times stronger than traditional mix and has short strands of steel. Since it is still relatively new technology, the Buchanan County Secondary Roads Department had to do the work themselves as contractors were unsure of how to bid on a project using this new technology.
To learn more about this innovative concrete mix and this Iowa bridge, click here.