Landscape Architect & Specifier News

FEB 2016

LASN is a photographically oriented, professional journal featuring topics of concern and state-of-the-art projects designed or influenced by registered Landscape Architects.

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(Continued from page 14) h a rd s c a p e s Top, Left Nearly five miles of tubing runs underneath the concrete in the 9,500 square foot plaza. The project's mechanical engineer designed a system that utilizes return water from the building's central heating to preheat the site's glycol tank. Moisture sensors in the plaza from the local Uponor Company trigger the melting of snow. The same company also provided the tubing, which runs under the trench drains that collect runoff. This allows the drains to continue working in subzero temperatures. Top, Right One key request in the plaza redesign made by both employees and visitors was a more permanent outdoor seating area. The final design included this three-tier amphitheater space used by the library for book clubs and children's reading programs. It can also function as a small performance space. The back of the concrete amphitheater was finished smooth, and bicycle parking was placed directly behind the space. 16 Landscape Architect and Specifier News The back of the seating area was finished smooth, and bicycle parking placed directly behind the 30" tall amphitheater, creating a space that is both playful and functional. A pair of seatwalls were designed in the plaza along the main entry drive. Running bond formliner face topped with a buff precast concrete cap match the building's rooflines, while providing ample seating around two elevated planters. Around the plaza, aging HID light fixtures were replaced with contemporary LED fixtures. A local artist was commissioned to sandblast a relief of the geographical boundary of Dakota County into the plaza. This relief was painted with black epoxy paint, creating a positive reflection of the mural above the main door. Plant beds were raised behind 6" curbs, and high efficiency Hunter drip irrigation was installed to keep irrigation at the point source. Raising the plant beds helps guide pedestrian traffic and allows for ease of annual maintenance. Shrubs and perennials, as well as aspen and crabapple trees from a local nursery wholesaler, provide year-round color and wildlife habitat. The overall project timeline was 5 months from start to finish. The transformation of the space is nothing less than dramatic, according to many Dakota County staff. This was a highly collaborative project between landscape architects—Josh Kinney, PLA, Dakota County project manager, and Ben Hartberg, ASLA, LEED AP, of the Calyx Design Group in St. Paul. Wold Architects and Engineers provided electrical & mechanical engineering as well as overall construction administration. PROJECT TEAM: Architect/Engineer: Wold Architects & Engineers, Joel Dunning, AIA & Pat Jansen, PE Landscape Architect: Calyx Design Group, Ben Hartberg, PLA Client: Dakota County Property Services, Josh Kinney, PLA Bottom The project took five months to complete, and involved heavy collaboration between the project manager and the landscape architect. The use of the glycol-heated concrete eliminates the need for salt and snow removal equipment, which had quickly deteriorated the previous concrete. The pavers have proven effective already, melting the snow that fell around Christmas safely, efficiently, and without the use of salt.

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