IQ Winter 2014 - (Page 19)

DBIA Excellence in Design Citation Tres Rios Environmental Restoration, Phases 3A and 3B PHOENIX, ARIZ. dbia.org new open water areas provide recreational spots. After two years, the Tres Rio Nature and Earth Festival has been able to return to its original site. One of the innovations used to achieve the project's success was the use of 3D modeling, allowing all those involved-designers, contractors, the owner and other stakeholders-to see the project status and collaborate on necessary changes in real time. Indeed, one of the outstanding elements of the project was the inclusion of all those involved in and affected by the planning. / The Tres Rios Environmental Restoration project addresses flood control, river and habitat restoration, and regulatory issues related to effluent discharge into the Salt River from a wastewater treatment plant. In 2000, Congress approved the project for the U.S. Army Corps of Engineers, Los Angeles District. One of the requirements was to preserve and protect any remaining native wetland and marsh ecosystem and create the opportunity for damaged ecosystems to return, as much as possible, to their original states. The project succeeded, creating 44 acres of new, open-water reaches, along with 10 acres of marshland and 46 acres of improved riparian habitat. Tres Rios is not only four times the size of the average wetland ecosystem restoration project, but the care required to clear the invasive species, excavate large amounts of earth and reinstate native plants added extensive dimensions to the project. In addition, the project provides enhanced flood control and an upgraded habitat for native birds, including bald eagles. It is also working on a six-year effort to eradicate the invasive Tamarisk (Salt Cedar) to bring the ecosystem closer to its original state. Human inhabitants also benefit from the project. Not only is the flood danger reduced, but the Owner: U.S. Army Corps of Engineers, Los Angeles District Design-Builder and General Contractor: Kiewit Western Co. Architect and Engineer: HNTB Corporation Specialty Contractor: Logan Simpson Design, Inc. (landscape architect) Classic Excavation (clear and grub subcontractor) Combs Construction Company (grading and excavation subcontractor) Other Key Professional: City of Phoenix winter//2014 19 http://www.dbia.org

Table of Contents for the Digital Edition of IQ Winter 2014

leadership reflections
legislative update
project of the year
DBIA survey
design-build best practices
design winners
nationalo design-build student competition

IQ Winter 2014

IQ Winter 2014 - (Page 1)
IQ Winter 2014 - (Page 2)
IQ Winter 2014 - (Page 3)
IQ Winter 2014 - (Page 4)
IQ Winter 2014 - leadership reflections (Page 5)
IQ Winter 2014 - leadership reflections (Page 6)
IQ Winter 2014 - legislative update (Page 7)
IQ Winter 2014 - project of the year (Page 8)
IQ Winter 2014 - project of the year (Page 9)
IQ Winter 2014 - DBIA survey (Page 10)
IQ Winter 2014 - DBIA survey (Page 11)
IQ Winter 2014 - DBIA survey (Page 12)
IQ Winter 2014 - DBIA survey (Page 13)
IQ Winter 2014 - design-build best practices (Page 14)
IQ Winter 2014 - design-build best practices (Page 15)
IQ Winter 2014 - design-build best practices (Page 16)
IQ Winter 2014 - design winners (Page 17)
IQ Winter 2014 - design winners (Page 18)
IQ Winter 2014 - design winners (Page 19)
IQ Winter 2014 - nationalo design-build student competition (Page 20)
IQ Winter 2014 - nationalo design-build student competition (Page 21)
IQ Winter 2014 - nationalo design-build student competition (Page 22)
IQ Winter 2014 - nationalo design-build student competition (Page 23)
IQ Winter 2014 - nationalo design-build student competition (Page 24)
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