American Public Works Association to Recognize Two HDR Projects

Two HDR projects will be recognized as Public Works Projects of the Year at the American Public Works Association’s 2018 PWX Convention.

The St. Croix Crossing — the largest public works project in Minnesota history — will be honored in the transportation category for projects with costs above $75 million. The Basin Creek Water Treatment Plant — the first gravity-powered U.S. facility to use a ceramic membrane filtration system — will win the award in the environment category for projects with costs between $25 and $75 million.

Representatives of both projects will be honored Aug. 27 in Kansas City.

St. Croix Crossing

Approximately 35 miles east of downtown Minneapolis, the new crossing of the St. Croix River improves the commute from western Wisconsin to the Twin Cities and is expected to spur economic development in the area. However, the federally protected waterway with scenic vistas and wildlife provided complex design challenges. The longest extradosed bridge in the United States — a hybrid cable-stay and box-girder design — lowered future maintenance and reduced construction impacts on environmentally sensitive areas by removing two river-borne towers. In addition, the team minimized impacts on bald eagle nests, mussels and endangered flowers. The new $417 million bridge increases capacity by 55,000 vehicles per day.

HDR and COWI provided consulting services for the Minnesota Department of Transportation and Wisconsin Department of Transportation on the project.

Basin Creek Water Treatment Plant

The Basin Creek Water Treatment Plant provides pristine drinking water to residents of Butte, Montana, using some of the most advanced technology in the industry. The $30 million facility marked the first fully operational U.S. plant to use ceramic membrane filters, which are common in Japan and Europe and offer better durability, chemical resistance and life expectancy than standard polymer filters. The plant also employs novel treat-on-demand technology, which allows the Basin Creek Reservoir to provide natural water storage without the construction of clear wells. The technological innovations saved money and improve raw water recovery to an incredibly efficient 99.95 percent, well above the industry range of 85 to 95 percent.

About HDR

For more than a century, HDR has partnered with clients to shape communities and push the boundaries of what’s possible. Our expertise spans nearly 10,000 employees, in more than 200 locations around the world — and counting. Our engineering, architecture, environmental and construction services bring an impressive breadth of knowledge to every project. Our optimistic approach to finding innovative solutions defined our past and drives our future.