Principal Riverwalk Hub Spot, Des Moines, Iowa.

Principal Riverwalk Hub Spot, Des Moines, Iowa.

Credit: © Paul Crosby


Substance Architecture 

Part of the Principal Riverwalk, a redevelopment project of bridges, outposts, and plazas that connects 300 miles of trails along the Des Moines River, the Hub Spot contains a café, restrooms, and service spaces within a 2,200-square-foot zinc-and-glass pavilion. The pavilion’s projecting roof shelters part of the Spot’s paver-covered plaza, and undercanopy LED lighting illuminates the area after sunset. Geothermal heating and cooling contribute to the structure’s sustainable ethos. Juror Josh Shelton appreciated the fact that “the trail and the walk passed right through the building. The way  that you could get from point A to point B was very lightly interrupted by this structure.” And to juror Gregory Hoss, the pavilion proved to be “an incredibly welcoming and extraordinarily friendly public gesture, but it's done in a very sophisticated palette of materials, and very simply.”

Click here to see all of the winners of the 2014 Residential Architect Design Awards.

View from pathway.

View from pathway.

Credit: © Paul Crosby


Street-facing elevation.

Street-facing elevation.

Credit: © Paul Crosby


Street-facing elevation.

Street-facing elevation.

Credit: © Paul Crosby


View from pathway.

View from pathway.

Credit: © Paul Crosby


View from river.

View from river.

Credit: © Paul Crosby


Drawings

Site plan.

Site plan.

Credit: Courtesy Substance Architecture



Project Credits

Project  Principal Riverwalk Hub Spot, Des Moines, Iowa
Architect  Substance Architecture, Des Moines, Iowa
General Contractor  Cramer and Associates
Landscape Architect  Wallace Roberts & Todd—David Ostrich
Interior Designer  Substance Architecture
Photography  Paul Crosby
Project Size  2,200 square feet
Construction Cost  Withheld

Materials and Sources

Bathroom Fixtures  Bradley Corp. bradleycorp.com
Doors and Windows  Bliss Nor-Am blissnoram.com
Exterior Siding  Ipe; VMZinc  www.vmzinc.com
Flooring  Concrete
Hardware  FSB fsb.de
Insulation  Icynene icynene.com
Lighting Fixtures  C.W. Cole & Co. colelighting.com; Insight Lighting insightlighting.com
Roofing  VMZinc  www.vmzinc.com