Internal Treatment

Extending the service life of timber bridges is our signature service. Since 1954, literally tens of thousands of timber structures have benefited from a detailed inspection followed by in-place preservative treatment. The careful placement of specialized wood preservatives can greatly extend the life of the timber components. County roadway structures & "Rails to Trails" bridges are also excellent candidates for this service.


Detailed final reports quantify remaining sound wood to give our customers an internal blueprint of their bridge. This is very helpful when prioritizing future repair work. By employing a combination of preservatives and patented procedures, we help control decay activity & slow down future decay growth.


Maintain your current timber pile bridges with the only service proven to help arrest existing decay and your bridge management program will benefit from reducing bridge replacement needs.

Koppers Railroad Structures  |  4546 Tompkins Drive  |  Madison  |  Wisconsin 53716  |  Phone: 800.356.5952  |  Fax: 608.221.0618