A landmark power plant in Owatonna, Minn., damaged in a 2010 flood has new life as the headquarters of Owatonna Public Utilities following a renovation by architects Leo A Daly.
When the Straight River flooded in 2010, 12 feet of water stood in the basement of the Owatonna power plant, a brick Italianate building with a distinctive neon sign, arched windows, and three silver smoke stacks. The flood damaged its generators, but OPU sought Leo A Daly's help in re-purposing the building into its new headquarters.
The interior volume of the turbine hall — 50 vertical feet of open space that had previously accommodated the plant’s massive boilers — guided Leo A Daly’s approach to space planning for the administrative and customer service spaces that would occupy the building.
Using the interior steel structure as scaffolding, Leo A Daly laid out atrium spaces and floating offices that cantilever over the ground floor. The effect is a series of connected spaces all lit by daylight through the building's large windows.
The building integrates artifacts from its pre-flood days. Boiler doors, valve covers, and valve wheels are re-presented in a gallery space. Bar grating is reused in the new building as railings. Energy efficient windows were installed while keeping the original window framing and some of the original glass in place. Colors, textures and materials from the original floor and equipment are incorporated.
To prevent future flood damage, flood doors were installed in a conditioned space below the flood line, which will allow river water to come and go without disrupting operations above. To pull this off, the architects had to raise the first occupiable floor by one foot.
Leo A Daly sees the Owatonna renovation as part of a growing trend. More cities are interested in repurposing their heritage facilities, rather than simply razing them and building new.
Related Stories
| Sep 29, 2011
AIA Dallas names new executive director
AIA Dallas one of only a few chapters in the U.S. to be led by an accomplished architect.
| Sep 29, 2011
Potter honored with SMSP honor
The Society for Marketing Professional Services (SMPS) recognized Alfred K. Potter II, FSMPS, senior vice president with Gilbane Building Co., with the 2011 Weld Coxe Marketing Achievement Award (MAA).
| Sep 28, 2011
Look who's coming to BD+C's Under-40 Leadership Summit
AEC industry "under-40 superstars" from top design and construction firms have signed up for BD+C's "Under-40 Leadership Summit."
| Sep 28, 2011
GBCI announces LEED fellow class of 2011
LEED Fellows represent green building industry's most accomplished professionals.
| Sep 28, 2011
Bradley sponsors design studio on intelligent buildings for UWM SARUP
The studio is taught by Gregory D. Thomson, assistant professor and co-director of the Institute for Ecological Design at UWM.
| Sep 23, 2011
Fire and hurricane rated glazed wall assemblies installed at multi-family residence in Florida
Fire and hurricane assemblies meet design and code requirements.