Landscape Architect & Specifier News

MAR 2014

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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the public. The solar panels and rain gardens draw attention because they are integrated into the unusual design aesthetic of the ramadas. By showcasing various riparian plants and their association with water, the park creates an atmosphere conducive to learning about and respecting the desert ecology. Even the simple act of providing containers for recycling throughout the park fosters environmental stewardship. Scheduling Complexities The completion of the 14-acre Dust Devil Park required over 71,950 man-hours and 30 subcontractors. Scheduling and coordination between trades and sequencing of construction was critical to hitting the most crucial deadlines, such as the turf grow-in window. A construction manager at-risk delivery method facilitated the teamwork necessary to overcome challenges encountered during construction, and to keep the project within a guaranteed maximum price. A flexible approach to project scheduling and work zones allowed the Phoenix Parks Department to add scope and still deliver the project on schedule. For instance, it was determined the specified precast light pole bases, some of which were located in the turf areas, had a longer lead-time than was available (22 weeks), so the team worked together to devise an alternate solution. Bases were cast-in-place up to grade level with the electrical conduit in place. Later, the visible portion of the base with a custom relief reed design would be cast-in-place with minimal turf disturbance. The team had the challenge to tile Roosevelt Irrigation District's (RID) substantial irrigation canal, located along the west edge of the park. The canal carries large volumes of water to agricultural users downstream and demands maintaining a continuous flow, except for a brief winter shut down. The tile work had to occur during the shut down, which was in advance of the park design completion. The team fast-tracked this work, established a separate budget which the city and used alternate delivery contracting methods. Collaborative 106 Landscape Architect and Specifier News A riparian core of native ash trees, sand, river cobble and shrubs (such as giant Hesperaloe funifera, creosote bush (Larrea tridentate) and 'Brakelight' Hesperaloe parviflora) was designed around the rivulet. Wide pathways throughout the park, including here crossing the rivulet, link the neighborhood to the park amenities. Dust Devil Park (Continued from page 90) http://www.zeager.com I n f o r m a t i o n R e q u e s t # 7 8 6 106_107.indd 106 2/28/14 5:12 PM

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