Water supply keeps flowing through two-year construction

The outdated equipment at the city water treatment plant was stretching its potable water supply capacity. Our municipal infrastructure leaders designed the new facility for greater reliability and energy efficiency while reducing costs and making operations easier. The team recognized existing site reuse was most economical, but had to overcome the challenge of a confined site due to its location in a residential neighborhood. Water supply had to continue throughout the 24-month construction period, and it did. Despite the limited site size, the new structure allows for future expansion to meet increasing demand within the same footprint.

Our engineers planned construction stages to overcome several of these challenges. A complex combination of pretreatment of water onsite, which required 20-foot-deep footings, and a 24-hour dewatering system that ran for six months effectively counteracted the site’s low water table. Our work with this client has allowed them to continue their 135-year legacy of producing high quality potable water.


American Council of Engineering Companies of Wisconsin
American Council of Engineering Companies of Wisconsin
Engineering Excellence Award 2013


Marinette Water Treatment Facility


Marinette Water and Wastewater Utility

Expertise Provided



Marinette, WI


Replacement of our outdated facilities was timely for continued performance and cost effectiveness. We now have a facility which will provide us the technology, capacity and reliability for many years to come. The funding we obtained from WDNR and ARRA was very much appreciated, and helped make the project happen. We couldn't be more pleased with our engineers and contractors; and the finished product in general.
Timothy D. Peterson
Administrator of the Marinette Water Utility