Logan Simpson Landscape Architecture Firm to Assess Freeway Landscape Irrigation Use and Design

Logan Simpson landscape architecture firm staff and irrigation designers are conducting an assessment to establish irrigation water budgets and irrigation design guidelines for Phoenix-area freeways. We will be studying the water usage of existing freeway segments to determine usage for the representative landscape styles used in the Valley. Our assessment of appropriate water use and design improvements will be the basis of in-progress and future landscape-freeway intergovernmental agreements with local communities. Logan Simpson’s research will then be used to develop a water training manual to improve future watering practices and provide an update the irrigation chapter (released in 1988) of ADOT’s Design Guidelines for Urban Freeways.

As a landscape architecture firm, Logan Simpson is committed to the sustainable use of limited resources. Logan Simpson and ADOT have a decades-long history of conducting research that promotes sustainable practices and contributes to the long term viability of the desert ecosystem. For more than three decades, freeway landscapes in the Phoenix Metropolitan Area have been watered by drip irrigation. Logan Simpson will help ADOT understand and improve its landscape water use with this baseline study to determine the amount of irrigation water used on ADOT freeway landscapes. By looking at the strengths and weaknesses of existing irrigation systems, our landscape and irrigation designers will then review, evaluate, and provide recommendations to ADOT on potential new systems or upgrades to existing systems. Part of the project will involve researching recent information regarding water needs for desert-adapted plants in order to develop new watering criteria to be used by maintenance personnel and irrigation designers. The results of this research will standardize the amount of water plants receive, improving irrigation efficiency of a precious and valuable resource.